TWI450161B - Touch screen panel - Google Patents

Description

Touch screen panel

Embodiments of the present invention relate to a capacitive touch screen panel.

With the development of the electronics industry, displays with fast response, low power consumption and good color reproduction rate, such as liquid crystal displays, electroluminescent displays and plasma display panels, have become hot topics. The display has been used in display screens of various electronic products such as televisions, computers, laptops, mobile phones, refrigerators, PDAs, and cash dispensers. In general, the display is connected to various input devices such as a keyboard, a mouse and a digital handwriting tablet. However, when using separate input devices such as keyboards, mice, and digital tablet, the user must know how to use a separate input device, and because the independent input device occupies space, the consumer is satisfied, the display The use is inconvenient. Therefore, the convenience of erroneous operation and the demand for a simple input device are gradually increased. According to the above requirements, a touch screen panel in which a user can directly input a message by touching a screen with a finger or a pen is recommended.

Since the touch screen panel has a simple structure, when there is little or no error operation, there is no independent input device to perform an input action, and the touch screen panel is convenient, and the user can quickly and easily operate the content displayed on the screen, and various displays. The touch screen panel has been applied.

According to the detection method of the touch part, the touch screen panel is divided into a resistive type, a capacitive type, an electromagnetic type, and the like. The resistive touch screen panel passes a voltage gradient to determine the touch position based on the resistance of the state in which the DC voltage is applied to the metal electrode formed on the upper or lower plate. When the user physically contacts the conductive film formed on the upper or lower panel, the capacitive touch panel senses the touch position according to the difference in capacitance generated by the upper or lower panel. The electromagnetic touch screen panel detects the touch portion by reading the LC value caused when the electromagnetic pen contacts the conductive film.

Hereinafter, a prior art capacitive touch screen panel will be described with reference to FIGS. 1 and 2. 1 is a perspective view illustrating a portion of a conventional capacitive touch screen panel, and FIG. 2 is a cross-sectional view illustrating the touch screen panel of FIG. 1.

Referring to FIGS. 1 and 2, a prior art capacitive touch screen panel includes a substrate 10, a first electrode string, and a second electrode string. The first electrode string includes a plurality of first electrode patterns 40 and a first connection pattern 20 that connects the first electrode patterns 40 to each other. The second electrode string includes a plurality of second electrode patterns 50 and a second connection pattern 60 that connects the second electrode patterns 50 to each other. The first electrode string and the second electrode string intersect without contact.

In the capacitive touch screen panel, the first connection pattern 20 is formed on the substrate 10. The first insulating layer 30 is formed on the entire surface of the substrate 10 on which the first connection patterns 20 are formed. The first insulating layer 30 has two contact holes 31a and 31b exposing a portion of the first connection pattern 20. On the first insulating layer 30, the first electrode pattern 40 of the first electrode string and the second electrode pattern 50 and the second connection pattern 60 of the second electrode string are formed. The second insulating layer 70 is formed on the entire surface of the first insulating layer 30 on which the first electrode pattern 40, the second electrode pattern 50, and the second connection pattern 60 are formed. The second insulating layer 70 functions as a passivation layer. The first electrode pattern 40 is connected to each other by the first connection patterns 20 formed between the substrate 10 and the first insulating layer 30 by the first and second contact holes 31a and 31b formed on the insulating layer 30.

In the capacitive touch screen panel, the first electrode pattern 40 of the first electrode string and the first connection pattern 20 and the second electrode pattern 50 and the second connection pattern 60 of the second electrode string are made of a transparent conductive material. Such as ITO (indium tin oxide). Further, the first insulating layer 30 and the second insulating layer 70 are made of tantalum nitride, tantalum oxide or an organic resin.

As described above, in the capacitive touch panel, the first electrode pattern 40 is connected to each other by the first connection pattern 20 through the first contact hole 31a and the second contact hole 31b.

However, the diameters of the contact holes 31a and 31b of the capacitive touch panel are very small because the first electrode pattern 40 and the second electrode pattern 50 are also made smaller in order to improve touch accuracy. Since the electric resistance of the substance is inversely proportional to its cross section, the electric resistance of the electrically conductive material filled in the contact holes 31a and 31b is very large. Therefore, if static electricity is generated during the production process of the capacitive touch panel, a high current suddenly flows to the conductive material having high resistance filled in the contact holes 31a and 31b, thereby damaging the contact holes 31a and 31b, or filling the contact holes. The first connection patterns 20 to which the conductive materials in 31a and 31b are connected.

In addition, in the capacitive touch screen panel, portions of the first electrode pattern 40 and the second connection pattern 60 overlapping the first connection pattern 20 are protruded upward because they are formed between the substrate 10 and the insulating layer 30. The steps of connecting the patterns 20 are different. Therefore, if static electricity is generated during the process of fabricating the capacitive touch screen panel, a high current flows along the surfaces of the first electrode pattern 40 and the second electrode pattern 50 and the second connection pattern 60 to be collected to the first electrode pattern 40. And a protruding portion of the second connection pattern 50. In particular, since the first electrode pattern 40 is adjacent to the second connection pattern 60, a strong electric field is formed between the protruding portion of the first electrode pattern 40 and the protruding portion of the second connection pattern 60. Therefore, the protruding portions of the first electrode pattern 40 and the second connection pattern 60 are damaged by a strong electric field.

It is an object of the present invention to provide a capacitive touch screen panel that prevents or reduces damage to the touch screen panel caused by static electricity during the process of fabricating the touch screen panel.

The additional advantages, objects, and features of the invention will be set forth in the description in the description. The objectives and other advantages of the invention will be realized and attained by the <RTIgt;

In order to achieve the above and other advantages and the object of the present invention, the touch screen panel includes a substrate; a plurality of first electrode strings are formed on the substrate and arranged in a first direction; The second electrode string is arranged on the same layer as the plurality of first electrode strings in a second direction intersecting the first direction; an insulating layer is formed between the substrate and the plurality of first and second electrode strings, The insulating layer includes at least two first contact holes and at least two second contact holes; and a plurality of first connection patterns formed between the substrate and the insulating layer, which are arranged independently of each other; wherein, the plurality of first electrode strings are Each of the plurality of first electrode patterns independently of each other, at least one of the plurality of first connection patterns including a first portion that is in contact through the at least two first contact holes and a second portion that is in contact through the at least two second contact holes a second portion, and an adjacent pair of the plurality of first electrode patterns in the first direction and the first portion of the first connection pattern are connected by at least two first contact holes, A second portion connected to the first connection pattern by at least two second contact holes.

In addition, the touch screen panel includes a substrate; a plurality of first electrodes are formed on the substrate and arranged in a first direction; a plurality of second electrodes are on the same plane as the plurality of first electrodes Arranging in a second direction intersecting the first direction; an insulating layer formed between the substrate and the plurality of first and second electrodes, the insulating layer comprising at least two first contact holes and at least two second a contact hole; and a plurality of first connection patterns formed between the substrate and the insulating layer and arranged independently of each other in the first direction, wherein one of the plurality of first electrodes includes a plurality of first electrodes independent of each other a pattern, at least one of the plurality of first connection patterns including a first portion contacted by the at least two first contact holes and a second portion contacted by the at least two second contact holes, and the plurality of first electrode patterns One of the plurality of first connection patterns and the first portion of the at least one of the plurality of first connection patterns are connected by at least two first contact holes, and the other of the plurality of first electrode patterns Wherein the at least one second portion is connected to the plurality of first connection patterns through the at least two second contact holes.

Embodiments of the present invention begin with the recognition of contact holes, electrode patterns, and particular portions of the connection pattern of the touch screen panel.

Based on this knowledge, the inventors studied the damage of the touch screen panel caused by static electricity. The research results show that the inventor has the following conclusions:

First, by increasing the number of contact holes formed in the insulating layer, damage caused by static electricity of the contact holes and the connection pattern can be reduced. If the number of contact holes is increased, the total cross-sectional area of the electrode pattern filled in the contact holes is increased. Therefore, the total resistance of the electrode pattern itself is reduced, and when the electrode pattern and the connection pattern are in contact, the contact resistance generated is also reduced due to the influence of the parallel connection between the electrode patterns filled in the contact holes. Therefore, by reducing the total resistance of the electrode pattern filled in the contact hole, the critical breakdown voltage of the contact hole can be increased.

Second, by using a low resistivity material, a low contact resistance material or a multilayer structure metal layer as the first connection pattern to connect the respective first electrode patterns, electrostatic damage caused by the contact holes and the connection patterns can be reduced. If the low resistance material is used as the first connection pattern, the total resistance of the first connection pattern is lowered. If the low contact resistance material is used as the first connection pattern, the contact resistance generated is lowered when the electrode pattern is in contact with the connection pattern. If the multilayer structure metal layer is used as the first connection pattern, the total resistance of the first electrode pattern and the first connection pattern is lowered. Therefore, by lowering the total resistance of the first connection pattern, the critical breakdown voltage of the first connection pattern can be increased.

Thirdly, the first electrode patterns are connected to each other by using at least two first connection patterns to ensure normal operation of the touch screen panel. This is because when one first connection pattern or one of the contact holes is damaged, the other can remain normal. Further, since the first connection patterns are connected in parallel, the load applied to each of the first connection patterns is reduced by half.

Finally, the electrostatic damage caused by the first electrode pattern and the second connection pattern can be reduced by increasing the distance between the specific portions of the first electrode pattern and the second connection pattern which are easily attenuated by the influence of static electricity. This is because by effectively maintaining the distance between the specific portions of the first electrode pattern and the second connection pattern, the electric field generated between specific portions caused by static electricity can be reduced.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 3 to 6C. Throughout the specification, the invention uses similar component symbols to represent similar components.

3 is a plan view showing a touch screen panel according to an embodiment of the present invention, and FIG. 4A is a cross-sectional view of the touch screen panel example in FIG. 3 along a secant line II-II', and FIG. 4B to FIG. 4D are enlarged views. The plan view illustrates the area "A" of the touch screen panel shown in FIG. 3, and shows various examples of the first electrode pattern and the contact hole.

Referring to FIG. 3, a capacitive touch screen panel includes a substrate 100, a plurality of first electrode strings 130, a plurality of second electrode strings 135, a plurality of first wirings 112, and a plurality of second wirings 114. a plurality of first connection pads 116 and a plurality of second connection pads 118.

A plurality of first electrode strings 130 are arranged in parallel in a first direction (eg, an X-axis axis direction). Each of the plurality of first electrode strings 130 includes a first electrode pattern 131 having a triangular shape, a quadrangular shape, a diamond shape, and the like, and a first connection pattern 110 for connecting adjacent first electrode patterns 131.

The plurality of second electrode strings 135 are arranged in parallel in the second direction (such as the Y-coordinate axis direction), and the first electrode strings 130 intersect but do not contact each other. Each of the plurality of second electrode strings 135 includes a second electrode pattern 136 having a triangular shape, a quadrangular shape, a diamond shape, and the like, and a second connection pattern 137 for connecting adjacent second electrode patterns 136, similar to the first electrode pattern 131.

A plurality of first wirings 112 are formed on the substrate 100 and connected to the plurality of first electrode strings 130, respectively. A plurality of second wirings 114 are formed on the substrate 100 and connected to the plurality of second electrode strings 135, respectively.

The plurality of first connection pads 116 are respectively connected to the plurality of first electrode strings 130 via the plurality of first wirings 112, and the plurality of second connection pads 118 are respectively connected to the plurality of second electrode strings via the plurality of second wirings 114 135 connections.

Referring to FIGS. 4A and 4B, an insulating layer 120 is formed on the entire surface of the substrate 100, wherein the first connection patterns 110, the first wirings 112, and the second wirings 114 are formed on the substrate 100. The insulating layer 120 includes a plurality of first contact holes 120a, 120b, and 120c exposing the first portion of the first connection pattern 110, and a plurality of second contact holes 120d, 120e exposing the second portion of the first connection pattern 110. 120f. In the embodiment of the present invention, the number of the first or second contact holes is three, but is not limited thereto. The number of the first or second contact holes may be two or more depending on the size or position of the first and second electrode patterns or the contact holes.

The first connection pattern 110 and the first electrode pattern 131 are independent of each other, and the second connection pattern 137 and the second electrode pattern 136 are integrally formed. On the other hand, in other embodiments, the first connection pattern and the first electrode pattern are integrally formed, and the second connection pattern is formed on the substrate and the insulating layer, and is independent of the second electrode pattern. In this case, the second electrode patterns may be connected to each other through the contact holes via the second connection pattern.

4C is a plan view illustrating the touch panel in which the first electrode patterns 131 are connected to each other via the two first connection patterns 111a and 111b. In the touch screen panel of FIG. 4C, the first connection patterns 111a are connected to the adjacent first electrode patterns 131 via the first contact holes 121a, 121b, 121c, 121d, 121e, and 121f, while the second connection patterns 111b are connected via the second connection patterns 111b. The second contact holes 122a, 122b, 122c, 122d, 122e, and 122f are connected to the adjacent first electrode patterns 131. Therefore, the load applied to each of the two first connection patterns 111a and 111b caused by static electricity can be reduced by about half. Further, when any one of the two first connection patterns 111a and 111b is damaged, the other first connection pattern can be maintained normal. Therefore, the touch screen panel can be operated normally.

The material of the first connection pattern 110 may be a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), or the like, Cu, Mo or Al/ni alloy. Cu can be preferably used, but it is not necessary because the resistivity and cost of Cu are both low. The Mo or AlMi alloy may be more preferably used, but is not necessary because it has a very low contact resistance when it is used as the first electrode pattern 131 in contact with ITO or IZO. The material of the insulating layer 120 may be tantalum nitride, tantalum oxide, organic material or the like.

In the touch screen panels of FIGS. 4B and 4C, the first connection patterns 110, 111a, and 111b are formed by straight lines, but are not limited thereto. The first connection patterns 110, 111a, and 111b have intermediate portions and first and second portions, the first and second portions respectively extending from both ends of the intermediate portion and then formed at a predetermined angle with respect to the intermediate portion. Further, at least one of the contact holes has a different size from the other contact holes.

4D is a plan view illustrating a touch screen panel in which first and second portions and a middle portion of the first connection pattern are vertically intersected.

Referring to FIG. 4D, the first connection pattern 110 has a middle portion 110m, a first portion 110i and a second portion 110j extending from both ends of the intermediate portion 110m. The first portion 110i is in contact with the first to sixth contact holes 123a, 123b, 123c, 123d, 123e, 123f, and the second contact portion 110j is in contact with the seventh to twelfth contact holes 123g, 123h, 123i, 123j, 123k, 123l . In the touch screen panel of FIG. 4D, the first portion 110i and the second portion 110j are formed perpendicularly intersecting the intermediate portion 110m, but are not limited thereto. The first portion 110i and the second portion 110j may intersect to the intermediate portion 110m at a predetermined angle.

According to the above embodiment of the present invention, the total resistance of the first electrode pattern is reduced because the first connection pattern is connected to the first electrode pattern via the plurality of contact holes to increase the cross-sectional area of the first electrode pattern filled in the contact hole . Therefore, by increasing the number of contact holes formed on the insulating layer, damage of the contact holes and the first connection pattern due to static electricity can be reduced or prevented.

Another embodiment of the present invention will be described in detail with reference to FIG. 5 is a cross-sectional view of another example of the touch screen panel along line II-II' in FIG. 3; the components of the touch screen panel shown in FIG. 5 are the same as those shown in FIG. 4A except for the first connection. The pattern is different. Therefore, similar component symbols represent similar components, and detailed description will be omitted for simplicity of explanation.

Referring to FIG. 5, the first connection pattern 110 includes a first metal layer 110a, a second metal layer 110b, and a third metal layer 110c which are sequentially formed on the substrate 100. Preferably, but not necessarily, aluminum or an aluminum alloy such as AlNd is used as the material of the first metal layer 110a because the electrical resistivity of the aluminum or aluminum alloy is low. Preferably, but not necessarily, molybdenum (Mo) or a molybdenum alloy is used as the material of the second metal layer 110b because the contact resistance of the Mo or molybdenum alloy is very low when the molybdenum is in contact with the first electrode pattern 131 such as a transparent electrode. Examples of the transparent electrode include ITO or IZO. Further, it is preferable, but not essential, to use the same material as the first electrode pattern 131 (such as ITO or IZO) as the material of the third metal layer 110c. Further, the material of the first metal layer 110a and the second metal layer 110b may be any one of Al, Nd, AlNd, Mo, Ti, MoTi, Cu, Cr or the above alloy. Other metals, alloys or materials can also be used.

According to the touch screen panel shown in FIG. 5, since the second metal layer 110b is connected in parallel with the third metal layer 110c, the total resistance of the first connection pattern 110 having a multilayer structure can be reduced. Further, when the contact hole is formed in the insulating layer 120, since the hardness of Mo is very low, the Mo layer as the second metal layer 110b disposed between the substrate 100 and the insulating layer 120 can be etched by the etchant. However, in the touch screen panel of FIG. 5, the Mo layer is not etched because the third metal layer 110c is formed on the Mo layer serving as the second metal layer 110b, and the ITO or IZO serving as the third metal layer 110c is used. The hardness is large. Therefore, since the total resistance of the connection pattern 110 is reduced, damage of the first connection pattern 110 due to static electricity can be prevented or reduced. In the touch screen panel shown in FIG. 5, the first connection pattern 110 is composed of three layers, but is not limited thereto. The number of layers of the first connection pattern 110 may be two or more layers depending on physical properties used as the material of the first connection pattern 110.

Other embodiments of the present invention will be described in detail below, with reference to Figures 6A through 6C. 6A to 6C are plan views illustrating modified examples of the first electrode pattern, the second connection pattern, and the contact hole.

The elements of the touch screen panel shown in FIGS. 6A to 6C are the same as those shown in FIGS. 3 to 5 except that the first electrode pattern and the first connection pattern are different. Therefore, similar component symbols represent similar components, and detailed description will be omitted for simplicity of explanation.

Referring to FIG. 6A, the first electrode pattern 131 of the touch screen panel includes a first concave portion 131a and a second concave portion 131b. The first concave portion 131a and the second concave portion 131b are overlapped with the first connection pattern 110. Both ends are formed. The second connection pattern 137 includes a third concave portion 137a and a fourth concave portion 137b, and the third concave portion 137a and the fourth concave portion 137b are formed at both ends of the portion overlapping the first connection pattern 110. The third concave portion 137a is opposed to the first concave portion 131a, and the fourth concave portion 137b is opposed to the second concave portion 131b. Since the steps of the first connection patterns 110 formed between the substrate 100 and the insulating layer 120 are different, portions of the first electrode patterns 131 and the second connection patterns 137 overlapping the first connection patterns 110 may protrude upward.

According to the touch screen panel embodiment shown in FIG. 6A, the first electrode pattern 131 protrudes and the second portion through the first concave portion 131a and the third concave portion 137a and/or the second concave portion 131b and the fourth concave portion 137b. The distance between the protruding portions of the connection pattern 137 is prolonged. Therefore, although static electricity is generated during the production of the touch screen panel, only a weak electric field is formed between the protruding portions of the first electrode pattern 131 and the second connection pattern 137. Therefore, the first electrode pattern 131 and the second connection pattern 137 can be prevented or reduced from being damaged.

Referring to FIG. 6B, the first electrode pattern 131 of the touch screen panel includes two first connection patterns 111a and 111b for connecting the first electrode pattern 131 and another adjacent first electrode pattern 131. Since the steps of the first connection patterns 111a and 111b formed between the substrate 100 and the insulating layer 120 are different, the portions of the first electrode pattern 131 and the second connection pattern 137 overlapping the first connection patterns 111a and 111b are protruded upward. In the touch screen panel of FIG. 6B, the number of the first connection patterns is two, but is not limited thereto. The number of the first connection patterns can be set to two or more.

The first electrode pattern 131 includes a first concave portion 131a and a second concave portion 131b formed on both ends of a portion overlapping the first connection pattern 111a. Further, the first electrode pattern 131 includes a first convex portion 131c and a second convex portion 131d formed on both ends of a portion overlapping the first connection pattern 111b.

The second connection pattern 137 includes a third concave portion 137a and a fourth concave portion 137b formed on both ends of the portion overlapping the first connection pattern 111a. The third concave portion 137a is opposed to the first concave portion 131a, and the fourth concave portion 137b is opposed to the second concave portion 131b. Further, the second connection pattern 137 includes a third convex portion 137c and a fourth convex portion 137d formed on both ends of the portion overlapping the first connection pattern 111b. The third convex portion 137c is opposed to the first convex portion 131c, and the fourth convex portion 137d is opposed to the second convex portion 131d.

The touch screen panel shown in FIG. 6B passes through the first concave portion 131a and the third concave surface 137a and/or the second concave surface at the overlap of the first electrode pattern 131 and the second connection pattern 137 with the first connection pattern 111a. The portion 131b and the fourth concave surface 137b extend the distance between the protruding portion of the first electrode pattern 131 and the protruding portion of the second connection pattern 137. Therefore, although static electricity is generated during the production of the touch panel, only a weak electric field is formed between the protruding portions of the first electrode pattern 131 and the second connection pattern 137. Therefore, the first electrode pattern 131 and the second connection pattern 137 can be prevented or reduced from being damaged.

On the contrary, at the overlap of the first electrode pattern 131 and the second connection pattern 13 and the first connection pattern 111b, the first convex portion 131c and the third convex portion 137c and/or the second convex portion 131d and the fourth convex portion 137d The distance between the protruding portion of the first electrode pattern 131 and the protruding portion of the second connection pattern 137 is shortened. Therefore, if static electricity is generated during the process of fabricating the touch screen panel, the first electrode pattern 131 and the second connection pattern 137 protrude at the overlap of the first electrode pattern 131 and the second connection pattern 137 and the first connection pattern 111b. A strong electric field is formed between the parts.

Therefore, although the protruding portions of the first electrode pattern 131 and the second connection pattern 137 may be damaged at the place where the strong electric field is generated, the protruding portions of the first electrode pattern 131 and the second connection pattern 137 are maintained to generate a weak electric field. As a result, the normal operation of the touch screen panel is ensured.

Referring to FIG. 6C, the first electrode pattern 131 of the touch screen panel includes a first concave portion 131a and a second concave portion 131b formed at both ends of the overlap with the first connection pattern 110. The second connection pattern 137 includes third and fourth concave portions 137a and 137b formed at both ends of the overlap with the first connection pattern 110. The third concave portion 137a is opposed to the first concave portion 131a, and the fourth convex portion 137b is opposed to the second concave portion 131b. Therefore, since the steps of the first connection pattern 110 formed between the substrate 100 and the insulating layer 120 are different, portions of the first electrode pattern 131 and the second connection pattern 137 overlapping the first connection pattern 110 may protrude upward.

The first connection pattern 110 of the touch screen panel shown in FIG. 6C has an intermediate portion 110m, a first portion 110i and a second portion 110j, and the first portion 110i and the second portion 110j extend from both ends of the intermediate portion 110m. It is similar to the touch screen panel shown in Figure 4D. The insulating layer 120 of the touch screen panel shown in FIG. 6C includes first to sixth contact holes 123a, 123b, 123c, 123d, 123e, and 123f exposing the first portion 110i, and seventh exposing the second portion 110j. To the twelfth contact holes 123g, 123h, 123i, 123j, 123k, and 123l. In the touch screen panel of FIG. 6C, the number of contact holes is set to 12, and the first portion 110i and the second portion 110j are perpendicularly intersected with the intermediate portion 110m, but are not limited thereto. The number of contact holes can be appropriately adjusted. Further, the first portion 110i and the second portion 110j may be formed to intersect the intermediate portion 110m at a straight line or a predetermined angle.

According to the touch screen panel shown in FIG. 6C, the first electrode pattern 131 protrudes and the second connection pattern by the first concave portion 131a and the third concave portion 137a and/or the second concave portion 131b and the fourth concave portion 137b The distance between the protruding portions of 137 is extended. Therefore, although static electricity is generated during the process of fabricating the touch screen panel, only a weak electric field is formed between the protruding portions of the first electrode pattern 131 and the second connection pattern 137. Therefore, the first electrode pattern 131 and the second connection pattern 137 can be prevented or reduced from being damaged.

Table 1 shows the results of electrostatic discharge (ESD) tests according to prior art touch screen panel comparison examples and inventive examples 1 to 3. In the test, the inventors used an ESD discharge gun in the air to apply static electricity to the touch screen panel portion while gradually increasing the voltage level, and then measuring the breakdown voltage when the touch screen panel was damaged.

In Table 1, the comparative example is the prior art touch screen panel shown in FIG. 1 , the example 1 is the touch screen panel shown in FIG. 6A, and the example 2 is the touch screen panel shown in FIG. 6B, and Example 3 is the touch screen panel shown in FIG. 6C.

As shown in Table 1, compared with the prior art comparative example, the critical collapse voltage of the touch screen panel of the embodiment of the present invention is increased by 3 to 4 times before the polarizing mirror is bonded, and 1.54 is added after the polarizing mirror is bonded. 1.7 times. Therefore, it is possible to effectively prevent or reduce damage caused by static electricity of the touch screen panel.

The touch screen panel of the embodiment of the present invention can be applied to a display such as a liquid crystal display, a field emission display, a plasma display panel, an electroluminescence display, an electrophoretic display, and a flexible display. In the above case, the substrate of the touch screen panel can also be used as the substrate of the display.

Although the embodiments of the present invention have been described with reference to a number of illustrative examples, it is to be understood that many modifications and variations may be made by those skilled in the art. In particular, variations and modifications are possible in the component parts and/or configurations of the combined configurations of the subject matter, and in the scope of the drawings and the appended claims. Other uses will be apparent to those skilled in the art, in addition to variations and modifications in the component parts and/or arrangements.

10. . . Substrate

20. . . First connection pattern

30. . . First insulating layer

40. . . First electrode pattern

50. . . Second electrode pattern

60. . . Second connection pattern

70. . . Second insulating layer

31a. . . First contact hole

31b. . . Second contact hole

100. . . Substrate

110. . . First connection pattern

112. . . First wiring

114. . . Second wiring

116. . . First connection pad

118. . . Second connection pad

130. . . First electrode string

131. . . First electrode pattern

135. . . Second electrode string

136. . . Second electrode pattern

137. . . Second connection pattern

120. . . Insulation

120a, 120b, 120c. . . First contact hole

120d, 120e, 120f. . . Second contact hole

111a, 111b. . . First connection pattern

121a, 121b, 121c, 121d, 121e, 121f. . . First contact hole

122a, 122b, 122c, 122d, 122e, 122f. . . Second contact hole

123a. . . First contact hole

123b. . . Second contact hole

123c. . . Third contact hole

123d. . . Fourth contact hole

123e. . . Fifth contact hole

123f. . . Sixth contact hole

123g. . . Seventh contact hole

123h. . . Eighth contact hole

123i. . . Ninth contact hole

123j. . . Tenth contact hole

123k. . . Eleventh contact hole

123l. . . Twelfth contact hole

110m. . . Middle part of the first connecting pattern

110i. . . First part of the first connection pattern

110j. . . First connecting pattern second part

110a. . . First metal layer

110b. . . Second metal layer

110c. . . Third metal layer

131a. . . First concave portion of the first electrode pattern

131b. . . Second concave portion of the first electrode pattern

131c. . . First convex portion of the first electrode pattern

131d. . . Second convex portion of the first electrode pattern

137a. . . Second concave portion of the second connecting pattern

137b. . . Fourth concave pattern fourth concave portion

137c. . . Second connecting pattern third convex portion

137d. . . Second connecting pattern fourth convex portion

The accompanying drawings are intended to provide a further understanding of the embodiments In the schema:

1 is a perspective view illustrating a portion of a prior art capacitive touch screen panel;

2 is a cross-sectional view showing a portion of the touch screen panel shown in FIG. 1;

3 is a plan view showing a touch screen panel according to an embodiment of the present invention;

4A is a cross-sectional view of the touch screen panel example along line II-II in FIG. 3;

4B to 4D are enlarged plan views showing the "A" area of the touch screen panel, and various examples showing the first connection pattern and the contact hole;

Figure 5 is a cross-sectional view along line II-II' of still another example of the touch screen panel of Figure 3;

6A to 6C are enlarged plan views showing the "A" area of the touch screen panel, and various examples showing the first electrode pattern, the first and second connection patterns, and the contact holes.

100. . . Substrate

110. . . First connection pattern

112. . . First wiring

114. . . Second wiring

116. . . First connection pad

118. . . Second connection pad

130. . . First electrode string

131. . . First electrode pattern

135. . . Second electrode string

136. . . Second electrode pattern

137. . . Second connection pattern

Claims (18)

A touch screen panel includes: a substrate; a plurality of first connection patterns directly formed on the substrate; an insulating layer disposed to cover the plurality of first connection patterns, and including at least two first contact holes and At least two second contact holes; a plurality of first electrode strings formed on the insulating layer and arranged in a first direction; and a plurality of second electrode strings in the same layer as the plurality of first electrode strings And arranged in a second direction intersecting the first direction; wherein each of the plurality of first electrode strings comprises a plurality of first electrode patterns independent of each other, in the plurality of first connection patterns Each of the first portion including the first portion exposed through the at least two first contact holes and the second portion exposed through the at least two second contact holes, and one of the plurality of first electrode patterns in the first direction An electrode pattern of an adjacent pair is connected to the first portion of the first connection pattern through the at least two first contact holes, and another electrode pattern of the adjacent pair of the plurality of first electrode patterns The at least two second contact hole connected to the second portion by the first connection pattern. The touch screen panel of claim 1, wherein the at least two first contact holes and the at least two second contact holes reduce or prevent damage to the touch screen panel caused by static electricity. The touch screen panel of claim 1, wherein each of the plurality of second electrode strings comprises a plurality of second electrode patterns and a plurality of second connection patterns, wherein the plurality of second connection patterns are Each of the plurality of adjacent pairs of second electrode patterns is connected. The touch screen panel of claim 3, wherein the plurality of second connection patterns are on the same layer as the plurality of first electrode strings and the plurality of second electrode strings. The touch screen panel of claim 1, wherein the plurality of first electrodes Each adjacent pair of patterns is connected via at least two of the plurality of first connection patterns. The touch screen panel of claim 1, wherein the at least two first contact holes and the at least two second contact holes are aligned in the first direction. The touch screen panel of claim 1, wherein the at least two first contact holes and the at least two second contact holes are arranged in the second direction. The touch screen panel of claim 1, wherein at least one of the plurality of first connection patterns is straight. The touch screen panel of claim 1, wherein at least one of the plurality of first connection patterns comprises a first portion, a second portion, and an intermediate portion connecting the first portion and the second portion And the first portion and the second portion extend in the second direction, the intermediate portion extending in the first direction. The touch screen panel of claim 1, wherein at least one of the plurality of first connection patterns comprises a first portion, a second portion, and an intermediate portion connecting the first portion and the second portion And the first portion and the second portion extend at an angle relative to the first direction, the intermediate portion extending in the first direction. The touch screen panel of claim 1, wherein at least one of the plurality of first connection patterns is composed of a transparent conductive material or a metal material. The touch screen panel of claim 11, wherein the transparent conductive material comprises indium tin oxide (ITO) or indium zinc oxide (IZO). The touch screen panel of claim 11, wherein the metal material comprises one of Cu, Mo, and an Al/Ni alloy. The touch screen panel of claim 1, wherein each of the plurality of first connection patterns comprises a plurality of layers. The touch screen panel of claim 14, wherein the plurality of layers comprise a first metal layer, a second metal layer and a third layer, the first metal layer, the second metal layer and The material formed by the third layer is different. The touch screen panel of claim 1, wherein each adjacent pair of the plurality of first electrode patterns includes a pair of concave portions overlapping one of the plurality of first connection patterns, One of the plurality of first connection patterns connects each of the adjacent pairs of the plurality of first electrode patterns. The touch screen panel of claim 1, wherein each adjacent pair of the plurality of first electrode patterns includes a pair of convex portions overlapping the one of the plurality of first connection patterns, One of the plurality of first connection patterns connects each of the adjacent pairs of the plurality of first electrode patterns. The touch screen panel of claim 1, wherein the at least two first contact holes and the at least two second contact holes are different in size.