JP6698291B2 - Touch panel and display device including the same - Google Patents

Description

  Embodiments of the present invention relate to a touch panel and a display device including the touch panel.

The touch panel is an input device for inputting a predetermined command when the user touches with his/her hand or an object.
Since such a touch panel replaces another input device such as a keyboard and a mouse, its usage range is gradually expanding, mainly in mobile devices.

Known methods for implementing a touch panel include a resistance film method, a light sensing method, and a capacitance method.
Among them, the electrostatic capacitance type touch panel, which has been widely used recently, includes a large number of touch electrodes, and detects the point where the electrostatic capacitance is changed by the contact of a human hand or an object to grasp the contact position.

Such a touch panel is often combined with a display panel to be commercialized.
However, in this case, a substantial RC delay is generated due to a parasitic capacitance existing between a touch electrode and a component (for example, a cathode electrode) included in the display panel, which is caused by a touch panel. May result in malfunction.

Patent No. 5461732 Japanese Patent No. 5359736 US Pat. No. 8,946,690 US Pat. No. 8,717,333 Patent Publication No. 2014-021522

  An object of the present invention, which has been devised to solve the above-mentioned problems, is to provide a touch panel that includes an auxiliary mesh electrode to reduce the resistance of the touch electrode, thereby improving RC delay, and the touch panel. It is to provide a display device.

  Another object of the present invention is to provide a touch panel capable of ensuring uniform visibility over the entire area and a display device including the touch panel.

An embodiment of the present invention for achieving the above-mentioned object is to provide a substrate, a plurality of first touch electrodes each including a plurality of first mesh patterns located on the substrate, and a plurality of first touch electrodes on the first touch electrode. A plurality of second touch electrodes each including a plurality of second mesh patterns positioned on the insulation film, a second insulating pattern positioned on the substrate, and at least a part of the second mesh pattern positioned on the substrate. A plurality of first auxiliary mesh electrodes that are electrically connected to each other, and a plurality of second auxiliary mesh electrodes that are located on the insulating film and are electrically connected to at least a part of the first mesh pattern. unrealized, the first mesh pattern and the second mesh patterns, each plurality of metal lines forming an opening, and includes an extension portion extended to the outside at the intersection of the metal lines, the first auxiliary mesh electrode The second auxiliary mesh electrode may include a metal line forming a plurality of openings, and an extension part extended outward at an intersection of the metal lines .

  A first contact pattern that connects at least a part of the first mesh pattern and the second auxiliary mesh electrode through a plurality of first contact holes formed in the insulating film; A second contact pattern for connecting at least a part of the second mesh pattern and the first auxiliary mesh electrode through the plurality of second contact holes formed in the second contact pattern.

  The first touch electrode may further include a first connection pattern that is located on the substrate and connects the first mesh patterns to each other.

  The second touch electrode may further include a second connection pattern that is located on the insulating layer and connects the second mesh patterns to each other.

  In addition, at least a part of the second mesh pattern and the first auxiliary mesh electrode electrically connected to each other is overlapped, and the first mesh pattern and the second auxiliary mesh electrode electrically connected to each other are: It is characterized in that at least a part thereof overlaps.

  Further, the first mesh pattern and the first auxiliary mesh electrode are formed of the same material, and the second mesh pattern and the second auxiliary mesh electrode are formed of the same material. To do.

  Further, the first mesh pattern and the second mesh pattern are formed of the same material or different materials.

Also, the width of the first auxiliary mesh electrode includes metal lines, wherein unlike the second width of the metal contained in the mesh pattern line width of the second auxiliary mesh electrode includes metal lines, It is different from the width of the metal line included in the first mesh pattern.

  The width of the metal line included in the second auxiliary mesh electrode is larger than the width of the metal line included in the first mesh pattern, and the width of the metal line included in the first auxiliary mesh electrode is The width is smaller than the width of the metal line included in the second mesh pattern.

In addition, a plurality of first pads and second pads located on the insulating film, a plurality of first trace lines located on the substrate and electrically connected to the first touch electrodes, and the substrate. The first pad and the first trace are formed through a plurality of second trace lines located above and electrically connected to the first touch electrode and a plurality of third contact holes formed in the insulating film. A plurality of fourth contact patterns connecting the second pads and the second trace lines through a plurality of third contact patterns connecting the lines and a plurality of fourth contact holes formed in the insulating film. And a contact pattern.

  In addition, a plurality of first auxiliary lines electrically connected to the first trace lines and a plurality of second auxiliary lines electrically connected to the second trace lines are further included.

  The first auxiliary line is directly connected to the upper side of the first trace line, and the second auxiliary line is directly connected to the upper side of the second trace line.

  The first auxiliary line and the second auxiliary line are located on the insulating film, and the touch panel is provided with the first trace line and the first auxiliary line through a plurality of fifth contact holes formed in the insulating film. A fifth contact pattern connecting each of the first auxiliary lines and a sixth contact pattern connecting each of the second trace line and the second auxiliary line through a plurality of sixth contact holes formed in the insulating film. Further includes.

  Also, the first mesh pattern, the first auxiliary mesh electrode, the first trace line, and the second trace line are formed of the same material, and the second mesh pattern, the second auxiliary mesh electrode, the The first auxiliary line and the second auxiliary line are formed of the same material.

  Further, the first auxiliary line and the second auxiliary line and the first trace line and the second trace line are formed of the same material or different materials.

  The width of the first auxiliary line is different from the width of the first trace line, and the width of the second auxiliary line is different from the width of the second trace line.

  In addition, the first mesh pattern and the second mesh pattern each include a metal line forming a plurality of openings, and an expansion portion extended outward at an intersection of the metal lines.

  In addition, the first auxiliary mesh electrode and the second auxiliary mesh electrode each include a metal line forming a plurality of openings, and an extended portion extended outward at an intersection of the metal lines.

  In addition, a plurality of dummy patterns located between the first mesh pattern and the first auxiliary mesh electrode may be further included.

  Further, the dummy pattern is in a floating state.

A touch panel according to an exemplary embodiment of the present invention includes a substrate, a first touch electrode, an insulating film, a second touch electrode, a first auxiliary electrode, and a second auxiliary electrode.
The first touch electrodes are located on the substrate, each of the first touch electrodes includes a plurality of mesh patterns, and each of the first touch electrodes extends in the first direction.
The insulating film is located on the first touch electrode.
The second touch electrodes are located on the insulating film and each extend in a second direction intersecting the first direction.
The first auxiliary electrode is disposed on the same layer as the first touch electrode, each has a mesh shape, and is electrically connected to at least a part of the second touch electrode.
The second auxiliary electrode is disposed on the same layer as the second touch electrode and is electrically connected to at least a part of the first touch electrode.
The second touch electrode may include a first portion arranged in the first region and a second portion arranged in the second region and having a pattern shape different from that of the first portion.

The first portion includes a first auxiliary electrode of the first auxiliary electrode arranged in the first region, a first touch electrode of the first touch electrode arranged in the first region, and the first region. Covering the opening defined by the first auxiliary electrode arranged in, and the opening defined by the first touch electrode arranged in the first region,
The second portion is disposed in the second region, the first overlapping pattern covering the first auxiliary electrode disposed in the second region of the first auxiliary electrode and being spaced apart from the first overlapping pattern. And a first inner pattern disposed within the opening defined by the first auxiliary electrode.

  The first portion may include an overlapping portion overlapping the first touch electrode and a connecting portion connecting between the overlapping portion. The second portion may be connected to the connecting portion and may be disposed outside the connecting portion.

  The second auxiliary electrode may include a third portion arranged in the third region and a fourth portion arranged in the fourth region and having a pattern shape different from that of the third portion.

  The third portion may cover the mesh pattern arranged in the third region and the opening defined by the mesh pattern arranged in the third region.

  The fourth portion is defined by a second overlapping pattern that covers the mesh pattern arranged in the fourth area, and the mesh pattern arranged in the fourth area, separated from the second overlapping pattern. A second inner pattern disposed within the opened opening.

  The touch panel may further include a first contact pattern and a second contact pattern. The first contact pattern may electrically connect at least a part of the first auxiliary electrode and the connection part through a plurality of first contact holes formed in the insulating film. The second contact pattern may electrically connect at least a part of the mesh pattern and the third part through a plurality of second contact holes formed in the insulating film.

  The third portion may overlap the central portion of each of the mesh patterns. The fourth portion may be connected to the third portion and may be disposed outside the third portion.

  The second portion may be closer to the first touch electrode than the connecting portion in a plane.

  The fourth portion may have a closer distance to the second touch electrode than the third portion in a plane.

  The first portion and the third portion may not have an opening portion inside.

  The first and second inner patterns may be electrically floated. The one first inner pattern may be disposed in one opening defined by the first auxiliary electrode. One of the second inner patterns may be disposed within one opening defined by the mesh pattern.

  The first and second inner patterns may be electrically floated. The plurality of first inner patterns separated from each other may be disposed in one opening defined by the first auxiliary electrode. The plurality of second inner patterns, which are spaced apart from each other, may be disposed in one opening defined by the mesh pattern.

  At least a part of the first auxiliary electrode is formed through an outer shell contact hole formed in a region of the first auxiliary electrode that overlaps with the metal line and that is closest to the overlapping part in the region. A first outer shell contact pattern for electrically connecting the connection part may be further included.

  The first touch electrode and the first auxiliary electrode may be formed of an opaque metal. The second touch electrode and the second auxiliary electrode may be formed of a transparent conductive material.

  The method may further include a plurality of dummy patterns arranged on the plane between the mesh pattern and the first auxiliary electrode.

  The touch panel may further include a first trace line, a second trace line, a first auxiliary line, and a second auxiliary line.

  The first trace lines may be located on the substrate and connected to the first touch electrodes, respectively. The second trace line may be disposed on the same layer as the first trace line and may be connected to the first auxiliary electrode. The first auxiliary line may be disposed on the insulating film and electrically connected to the first trace line. The second auxiliary line may be disposed on the same layer as the first auxiliary line and may be electrically connected to the first trace line.

A touch panel according to another embodiment of the present invention includes a substrate, a plurality of first touch electrodes that are located on the substrate, each of the first touch electrodes includes a plurality of mesh patterns, and the first touch electrodes each extend in a first direction. An insulating film located on the touch electrode, a plurality of second touch electrodes located on the insulating film and extending in a second direction intersecting with the first direction, and the same as the first touch electrode. A plurality of first auxiliary electrodes arranged on a layer, each having a mesh pattern and electrically connected to at least a part of the second touch electrodes, and on the same layer as the second touch electrodes. A plurality of second auxiliary electrodes arranged and electrically connected to at least a part of the first touch electrodes; and a plurality of second auxiliary electrodes positioned between the mesh pattern of the first touch electrodes and the first auxiliary electrodes. The second touch electrode includes a dummy pattern, and the second touch electrode is disposed in a first portion arranged in a first region and a second region different from the first region, and has a pattern shape different from that of the first portion. The dummy pattern is in a floating state and has a mesh shape .

  The first portion includes a part of the first auxiliary electrode arranged in the first region in the first auxiliary electrode and a first touch electrode arranged in the first region in the first touch electrode. Some of them can be exposed.

  The second portion may expose all of the second auxiliary electrodes disposed in the second region of the first auxiliary electrode.

  The first portion may include an overlapping portion that covers a remaining portion of the first touch electrode disposed in the first region and a connecting portion that connects the overlapping portions.

  The second portion may include a first inner pattern disposed outside the connection portion and disposed within an opening defined by the second auxiliary electrode disposed in the second region.

  The second auxiliary electrode may include a third portion arranged in the third region and a fourth portion arranged in the fourth region and having a pattern shape different from that of the third portion.

  The third portion may expose a part of the mesh pattern arranged in the third region of the mesh pattern. The fourth portion may expose all the mesh patterns arranged in the fourth area.

  The fourth portion may include a second inner pattern disposed within the opening defined by the mesh pattern disposed in the fourth region.

  The first portion may expose a portion that is not an intersection of metal lines included in the first touch electrode disposed in the first region. The third portion may expose a portion that is not an intersection of metal lines included in the mesh pattern arranged in the third region.

  The first portion may expose an intersection of metal lines included in the first touch electrode disposed in the first region. The third portion may expose intersections of metal lines included in the mesh pattern arranged in the third region.

  The first touch electrode and the first auxiliary electrode may be formed of an opaque metal. The second touch electrode and the second auxiliary electrode may be formed of a transparent conductive material.

  As described above, according to the above-described embodiment of the present invention, by providing the auxiliary mesh electrode, it is possible to provide a touch panel that reduces the resistance of the touch electrode and thereby improves the RC delay.

  Further, according to the embodiment of the present invention, it is possible to provide a touch panel capable of ensuring uniform visibility over the entire area.

3 is a view showing a touch panel according to an exemplary embodiment of the present invention. 3 is a view showing a touch panel according to an exemplary embodiment of the present invention. FIG. 3 is an enlarged view of an R1 area illustrated in FIG. 2. FIG. 4 is a sectional view of FIG. 3 based on the line A1-A2 of FIG. 3. 5 is a view showing an extension unit according to an exemplary embodiment of the present invention. FIG. 3 is an enlarged view of an R2 area illustrated in FIG. 2. 7 is a cross-sectional view of FIG. 6 based on the line B1-B2 of FIG. 6. FIG. 3 is an enlarged view of an R3 area illustrated in FIG. 2. 9 is a cross-sectional view of FIG. 8 based on the line C1-C2 of FIG. 8. FIG. 3 is an enlarged view of an R4 area illustrated in FIG. 2. FIG. 11 is a sectional view of FIG. 10 based on the line D1-D2 of FIG. 10. FIG. 11 is a cross-sectional view of FIG. 10 based on the line D1-D2 of FIG. 10. FIG. 3 is an enlarged view of an R5 area illustrated in FIG. 2. FIG. 13 is a cross-sectional view of FIG. 12 based on the line E1-E2 of FIG. 12. FIG. 13 is a cross-sectional view of FIG. 12 based on the line E1-E2 of FIG. 12. 6 is a view showing a dummy pattern according to an exemplary embodiment of the present invention. 3 is a view showing a touch panel according to an exemplary embodiment of the present invention. 3 is a view showing a touch panel according to an exemplary embodiment of the present invention. It is an enlarged view of the R6 area|region of FIG. FIG. 18 is a cross-sectional view of FIG. 17 based on the line I-I′ of FIG. 17. It is an enlarged view of the R7 area|region of FIG. It is sectional drawing of FIG. 19 based on the II-II' line of FIG. It is an enlarged view of the R8 area|region of FIG. FIG. 22 is a cross-sectional view of FIG. 21 based on the line III-III′ of FIG. 21. It is an enlarged view of the R9 area|region of FIG. FIG. 24 is a cross-sectional view of FIG. 23 taken along line IV-IV′ of FIG. 23. It is an enlarged view of the R10 area|region of FIG. FIG. 26 is a cross-sectional view of FIG. 25 based on the line V-V′ of FIG. 25. FIG. 23 is an enlarged view of a region R8 of FIG. 16, showing an embodiment of a form different from the second portion shown in FIG. 21. It is an enlarged view of the R11 area|region of FIG. FIG. 17 is an enlarged view of the R12 area shown in FIG. 16. FIG. 30 is a cross-sectional view of FIG. 29 based on the line VII-VII′ of FIG. 29. FIG. 17 is an enlarged view of the R13 area shown in FIG. 16. FIG. 32 is a cross-sectional view of FIG. 31 based on the line VII-VII′ of FIG. 31. FIG. 32 is a cross-sectional view of FIG. 31 based on the line VII-VII′ of FIG. 31. FIG. 17 is an enlarged view of the R14 area shown in FIG. 16. FIG. 34 is a cross-sectional view of FIG. 33 based on the line VIII-VIII′ of FIG. 33. FIG. 34 is a cross-sectional view of FIG. 33 based on the line VIII-VIII′ of FIG. 33. It is an enlarged view of the R6 area|region of FIG. It is an enlarged view of the R7 area|region of FIG. It is an enlarged view of the R8 area|region of FIG. FIG. 36 is an enlarged view of a region R6 in FIG. 16, showing an embodiment of a form different from the overlapping portion shown in FIG. 35. It is an enlarged view of the R9 area|region of FIG. It is an enlarged view of the R10 area|region of FIG. 6 is a view showing a dummy pattern according to an exemplary embodiment of the present invention.

  Specific details of other embodiments are included in the detailed description and the drawings.

  The advantages and features of the present invention, and the method of achieving them, will be apparent with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and can be embodied in various different forms, and in the following description, when a predetermined part is connected to another part, This includes not only the case where they are directly connected but also the case where they are electrically connected in the middle through another element. Further, in the drawings, parts not related to the present invention are omitted for the sake of clarity of description of the present invention, and similar parts are denoted by the same reference numerals throughout the specification.

  Hereinafter, a touch panel according to an exemplary embodiment of the present invention will be described with reference to the drawings associated with the exemplary embodiment of the present invention.

  1 and 2 are views showing a touch panel according to an exemplary embodiment of the present invention. For simplification of description, FIG. 1 mainly shows components existing on the substrate 100, and FIG. 2 mainly shows components existing on the insulating film 200.

  Referring to FIGS. 1 and 2, a touch panel according to an exemplary embodiment of the present invention includes a substrate 100, a first touch electrode 101, an insulating layer 200, a second touch electrode 102, a first auxiliary mesh electrode 210, and a second auxiliary mesh electrode. 220 is included.

The substrate 100 is formed of various materials as a place where the first touch electrode 101, the first auxiliary mesh electrode 210, etc. are located.
For example, the substrate 100 is made of an insulating material such as glass or resin. In addition, the substrate 100 is made of a flexible material that can be bent or folded, and has a single-layer structure or a multi-layer structure.

  To implement the touch screen function, the touch panel according to the embodiment of the present invention may be combined with a display panel displaying an image.

To this end, the substrate 100 included in the embodiment of the present invention is attached to a display panel.
Generally, the substrate 100 included in the embodiment of the present invention is an encapsulation thin film used in a display panel.
In addition, the substrate 100 has a transparency that allows light to pass therethrough.

Each of the first touch electrodes 101 is formed to be long in a first direction (eg, the y-axis direction), and a plurality of first touch electrodes 101 are arranged on the substrate 100 along a second direction (eg, the x-axis direction) intersecting the first direction. To be done.
For example, each first touch electrode 101 includes a plurality of first mesh patterns 110 arranged on the substrate 100 along a first direction.
At this time, the first mesh patterns 110 are electrically connected to each other.
To this end, the first touch electrode 101 further includes a first connection pattern 112 located on the substrate 100 and connecting the first mesh patterns 110 to each other.
Each of the first mesh patterns 110 has a mesh shape including a large number of openings 117 and includes metal lines 115 having a thin width.

  The first touch electrode 101 is formed of various conductive materials. For example, the first touch electrode 101 is formed of an opaque metal such as Ag, Al, Cu, Cr, Ni or Mo.

The insulating film 200 is formed in a wide shape on the upper side of the substrate 100. Accordingly, the insulating film 200 is located above the first touch electrode 101.
In addition, the insulating film 200 is also located above other components (eg, the first auxiliary mesh electrode 210, the first trace line 151, and the second trace line 152) located on the substrate 100.
The insulating layer 200 is formed of various insulating materials such as SiOx and SiNx.

Each of the second touch electrodes 102 is formed to be long in the second direction (eg, the x-axis direction), and a plurality of second touch electrodes 102 are formed on the insulating film 200 along a first direction (eg, the y-axis direction) intersecting the second direction. Arranged.
For example, each of the second touch electrodes 102 includes a plurality of second mesh patterns 120 arranged on the insulating film 200 along the second direction.
At this time, the second mesh patterns 120 are electrically connected to each other.
To this end, the second touch electrode 102 further includes a second connection pattern 122 located on the insulating layer 200 and connecting the second mesh patterns 120 to each other.
Each second mesh pattern 120 has a mesh shape including a large number of openings 127, and includes metal lines 125 having a thin width.

  The second touch electrode 102 is formed of various conductive materials. For example, the second touch electrode 102 is formed of an opaque metal such as Ag, Al, Cu, Cr, Ni or Mo.

A plurality of first auxiliary mesh electrodes 210 are located on the substrate 100.
The first auxiliary mesh electrode 210 is electrically connected to at least a part of the second mesh pattern 120 located on the insulating film 200.
To this end, each first auxiliary mesh electrode 210 is located below each second mesh pattern 120 electrically connected thereto.
Accordingly, at least a part of the specific second mesh pattern 120 and the first auxiliary mesh electrode 210 electrically connected to each other overlap.

As an example, FIG. 2 illustrates a configuration in which all the second mesh patterns 120 are electrically connected to the first auxiliary mesh electrode 210.
In this case, the number of second mesh patterns 120 and the number of first auxiliary mesh electrodes 210 are the same.
Generally, only a part of the second mesh pattern 120 is electrically connected to the first auxiliary mesh electrode 210.
In this case, the number of second mesh patterns 120 and the number of first auxiliary mesh electrodes 210 may be different.

  By providing the first auxiliary electrode 210, the resistance of the second touch electrode 102 is reduced, thereby improving the RC delay.

Each of the first auxiliary mesh electrodes 210 has a mesh shape including a plurality of openings 217 and includes metal lines 215 having a thin width.
The first auxiliary mesh electrode 210 is formed of various conductive materials. For example, the first auxiliary mesh electrode 210 is formed of an opaque metal such as Ag, Al, Cu, Cr, Ni or Mo.

  To simplify the process, the first mesh pattern 110, the first connection pattern 112, and the first auxiliary mesh electrode 210 located on the same substrate 100 are formed of the same material.

The plurality of second auxiliary mesh electrodes 220 are located on the insulating layer 200.
The second auxiliary mesh electrode 220 is electrically connected to at least a part of the first mesh pattern 110 located on the substrate 100.
To this end, each second auxiliary mesh electrode 220 is located above each first mesh pattern 110 electrically connected thereto.
Accordingly, at least a part of the specific first mesh pattern 110 and the second auxiliary mesh electrode 220 electrically connected to each other overlap.

As an example, in FIG. 2, all the first mesh patterns 110 are electrically connected to the second auxiliary mesh electrodes 220.
In this case, the numbers of the first mesh patterns 110 and the second auxiliary mesh electrodes 220 are the same.
Generally, only a part of the first mesh pattern 110 is electrically connected to the second auxiliary mesh electrode 220.
In this case, the numbers of the first mesh patterns 110 and the second auxiliary mesh electrodes 220 may be different.

  By providing the second auxiliary mesh electrode 220, the resistance of the first touch electrode 101 is reduced, and thus the RC delay can be improved.

Each of the second auxiliary mesh electrodes 220 has a mesh shape including a plurality of openings 227 and includes metal lines 225 having a thin width.
The second auxiliary mesh electrode 220 is formed of various conductive materials. For example, the second auxiliary mesh electrode 220 is formed of an opaque metal such as Ag, Al, Cu, Cr, Ni or Mo.

In order to simplify the process, the second mesh pattern 120, the second connection pattern 122, and the second auxiliary mesh electrode 220 located on the same insulating layer 200 are formed of the same material.
The first touch electrode 101 and the second touch electrode 102 may be formed of the same material or different materials.
Also, the first mesh pattern 110 and the second mesh pattern 120 may be formed of the same material or different materials.

3 is an enlarged view of the R1 region shown in FIG. 2, and FIG. 4 is a cross-sectional view of FIG. 3 based on the line A1-A2 of FIG.
3 and 4 illustrate a connection structure between the first mesh pattern 110 and the second auxiliary mesh electrode 220.
Further, in FIG. 3, the first mesh pattern 110 is shown by a dotted line, and the second auxiliary mesh electrode 220 is shown by a solid line.

Referring to FIGS. 3 and 4, the touch panel according to the embodiment of the present invention further includes a first contact pattern 410.
The insulating film 200 includes a plurality of first contact holes 310.

The first contact hole 310 is formed above the first mesh pattern 110.
For example, the first contact hole 310 is formed between the intersection of the metal line 115 included in the first mesh pattern 110 and the intersection of the metal line 225 included in the second auxiliary mesh electrode 220 as shown in FIG. To position.

The first contact pattern 410 connects at least a part of the first mesh pattern 110 and the second auxiliary mesh electrode 220 through a plurality of first contact holes 310 formed in the insulating film 200.
For example, as shown in FIG. 4, the first contact pattern 410 may electrically connect the first mesh pattern 110 and the second auxiliary mesh electrode 220 to each other through a plurality of first contact holes 310 located on the first mesh pattern 110. Connect to each other.
The first contact pattern 410 is formed integrally with the second auxiliary mesh electrode 220.
Also, the position and number of the first contact holes 310 may be variously changed.

The width W1 of the metal line 225 included in the second auxiliary mesh electrode 220 is different from the width W2 of the metal line 115 included in the first mesh pattern 110 in order to prevent Moire due to misalignment. ..
In particular, as shown in FIG. 3, the width W1 of the metal line 225 included in the second auxiliary mesh electrode 220 is larger than the width W2 of the metal line 115 included in the first mesh pattern 110.

FIG. 5 is a view showing an extension unit according to an exemplary embodiment of the present invention.
Further, in FIG. 5, as in FIG. 3, the first mesh pattern 110 is shown by a dotted line, and the second auxiliary mesh electrode 220 is shown by a solid line.

Referring to FIG. 5, the second auxiliary mesh electrode 220 according to the embodiment of the present invention further includes an extension part 229 extended outward at an intersection of the metal lines 225.
Therefore, the area where the metal lines 225 intersect becomes large, and even if some misalignment occurs, it is possible to make contact with the first mesh pattern 110.
In addition, the first mesh pattern 110 may further include an extension part 119 extended outward at an intersection of the metal lines 115.
As a result, the area where the metal lines 115 intersect becomes large, and even if a slight misalignment occurs, the contact with the second auxiliary mesh electrode 220 is possible.
In addition, the size of the first contact hole 310 increases, and the contact area between the first mesh pattern 110 and the second auxiliary mesh electrode 210 also increases.

6 is an enlarged view of the R2 region shown in FIG. 2, and FIG. 7 is a cross-sectional view of FIG. 6 based on the line B1-B2 of FIG.
6 and 7 illustrate a connection structure between the second mesh pattern 120 and the first auxiliary mesh electrode 210.
Further, in FIG. 6, the second mesh pattern 120 is shown by a solid line, and the first auxiliary mesh electrode 210 is shown by a dotted line.

Referring to FIGS. 6 and 7, the touch panel according to the embodiment of the present invention further includes a second contact pattern 420.
The insulating film 200 includes a plurality of second contact holes 320.

The second contact hole 320 is formed above the first auxiliary mesh electrode 210.
For example, the second contact hole 320 is formed between the intersection of the metal line 215 included in the first auxiliary mesh electrode 210 and the intersection of the metal line 125 included in the second mesh pattern 120 as shown in FIG. To position.

The second contact pattern 420 connects at least a portion of the second mesh pattern 120 and the first auxiliary mesh electrode 210 through the plurality of second contact holes 320 formed in the insulating film 200.
For example, as shown in FIG. 7, the second contact pattern 420 connects the second mesh pattern 120 and the first auxiliary mesh electrode 210 through the plurality of second contact holes 320 located on the first auxiliary mesh electrode 210. Connect electrically.
The second contact pattern 420 is formed integrally with the second mesh pattern 120.
Also, the position and number of the second contact holes 320 may be variously changed.

The width W3 of the metal line 215 included in the first auxiliary mesh electrode 210 is different from the width W4 of the metal line 125 included in the second mesh pattern 120 to prevent Moire due to misalignment. ..
In particular, as shown in FIG. 6, the width W3 of the metal line 215 included in the first auxiliary mesh electrode 210 is smaller than the width W4 of the metal line 125 included in the second mesh pattern 120.

Although not shown separately, the second mesh pattern 120, similarly to the first mesh pattern 110 shown in FIG. 5, further includes an extension part (not shown) extended to the outside at the intersection of the metal lines 125.
In addition, the first auxiliary mesh electrode 210, like the second auxiliary mesh electrode 220 shown in FIG. 5, further includes an extension (not shown) extended to the outside at the intersection of the metal lines 215.

When the touch panel according to the exemplary embodiment of the present invention is combined with the display panel, the pixels (not shown) included in the display panel have openings 117 and 127 of the mesh patterns 110 and 120 and openings of the auxiliary mesh electrodes 210 and 220, respectively. It is arranged so as to overlap the parts 217 and 227.
Therefore, the light emitted from the pixel is not blocked by the mesh patterns 110 and 120 and the auxiliary mesh electrodes 210 and 220.
At this time, at least one pixel is located in each opening 117, 127 of the mesh patterns 110, 120.

  8 is an enlarged view of the R3 region shown in FIG. 2, and FIG. 9 is a sectional view of FIG. 8 based on the line C1-C2 of FIG.

  Referring to FIGS. 1, 8 and 9, a touch panel according to an exemplary embodiment of the present invention includes a first trace line 151, a second trace line 152, a first pad 231, a second pad 232, a third contact pattern 430, and And a fourth contact pattern 440.

Referring to FIG. 1, the first trace lines 151 are located on the substrate 100 and are electrically connected to the first touch electrodes 101, respectively.
For example, the first trace line 151 is located in the outer shell region of the substrate 100.
In addition, each one end of the first trace line 151 is connected to a mesh pattern located outside of the mesh pattern 110 included in each first touch electrode 101, and each other end of the first trace line 151 is connected to the other mesh pattern 110. The extension is formed toward the first pad 231.

Referring to FIG. 1, the second trace lines 152 are located on the substrate 100 and are electrically connected to the second touch electrodes 102, respectively.
For example, the second trace line 152 is located in the outer shell region of the substrate 100 and is electrically connected to the second touch electrode 102 located on the insulating layer 200 through the first auxiliary mesh electrode 210 and the second contact pattern 420. It
To this end, one end of each second trace line 152 is connected to the first auxiliary mesh electrode positioned outside the first auxiliary mesh electrode 210, and each other end of the second trace line 152 is connected to the second auxiliary mesh electrode 210. The extension is formed toward the pad 232.

  For convenience of the process, the first mesh pattern 110, the first auxiliary mesh electrode 210, the first trace line 151, and the second trace line 152 are formed of the same material.

The insulating film 200 includes a large number of third contact holes 330 and a large number of fourth contact holes 340.
Each third contact hole 330 is formed on the other end of the first trace line 151.
For example, the third contact hole 330 is located in a region where the first trace line 151 and the first pad 231 overlap with each other.

In addition, each fourth contact hole 340 is formed on each other end of the second trace line 152.
For example, the fourth contact hole 340 is located in a region where the second trace line 152 and the second pad 232 overlap each other.

  The first pad 231 and the second pad 232 are located on the insulating film 200. For example, the first pad 231 and the second pad 232 are located in the outer shell region of the insulating film 200.

The first pad 231 is connected to the other end of the first trace line 151 through the third contact pattern 430.
In addition, the second pad 232 is connected to the other end of the second trace line 152 through the fourth contact pattern 440.
The third contact pattern 430 connects the first pad 231 and the first trace line 151 to each other through a plurality of third contact holes 330 formed in the insulating film 200.
In addition, the third contact pattern 430 is formed integrally with the first pad 231.
The fourth contact pattern 440 connects the second pad 232 and the second trace line 152 through the plurality of fourth contact holes 340 formed in the insulating film 200.
In addition, the fourth contact pattern 440 is formed integrally with the second pad 232.

  10 is an enlarged view of the R4 region shown in FIG. 2, and FIGS. 11A and 11B are cross-sectional views of FIG. 10 based on the line D1-D2 of FIG. However, FIG. 11A and FIG. 11B illustrate different embodiments.

Referring to FIGS. 2, 10, 11A, and 11B, the touch panel according to the embodiment of the present invention includes a first auxiliary line 251.
The first auxiliary line 251 is located on the insulating film 200. For example, the first auxiliary line 251 is located in the outer shell region of the insulating film 200.
The first auxiliary lines 251 are electrically connected to the first trace lines 151, respectively.
By providing the first auxiliary line 251, the resistance of the first trace line 151 is reduced, and thus the RC delay can be improved.
At this time, the first auxiliary line 251 is directly connected to the upper side of the first trace line 151 as shown in FIG. 11A.
For example, at least a portion of the first auxiliary line 251 directly contacts the first trace line 151.

In general, the first auxiliary line 251 is connected to the first trace line 151 through the fifth contact hole 350 and the fifth contact pattern 450, as shown in FIG. 11B.
To this end, the insulating layer 200 includes a plurality of fifth contact holes 350 located on the first trace lines 151.
For example, the fifth contact hole 350 is located in a region where the first trace line 151 and the first auxiliary line 251 overlap each other.
The fifth contact pattern 450 connects the first trace line 151 and the first auxiliary line 251 through the fifth contact hole 350 formed in the insulating film 200.
Through this, even if the insulating film 200 exists between the first trace line 151 and the first auxiliary line 251, the first trace line 151 and the first auxiliary line 251 are electrically connected.
At this time, at least a part of the first trace line 151 and the first auxiliary line 251 which are electrically connected to each other through the fifth contact pattern 450 overlap.

The width W5 of the first auxiliary line 251 is different from the width W6 of the first trace line 151.
For example, as shown in FIG. 10, the width W5 of the first auxiliary line 251 is set larger than the width W6 of the first trace line 151.

  12 is an enlarged view of the R5 region shown in FIG. 2, and FIGS. 13A and 13B are sectional views of FIG. 12 based on the line E1-E2 of FIG. However, FIG. 13A and FIG. 13B illustrate different embodiments.

Referring to FIGS. 2, 12, 13A, and 13B, the touch panel according to the embodiment of the present invention includes a second auxiliary line 252.
The second auxiliary line 252 is located on the insulating film 200. For example, the second auxiliary line 252 is located in the outer shell region of the insulating film 200.
The second auxiliary lines 252 are electrically connected to the second trace lines 152, respectively.
By providing the second auxiliary line 252, the resistance of the second trace line 152 may be reduced, thereby improving the RC delay.
At this time, the second auxiliary line 252 is directly connected to the upper side of the second trace line 152 as shown in FIG. 13A.
For example, at least a portion of the second auxiliary line 252 directly contacts the second trace line 152.

In general, the second auxiliary line 252 is connected to the second trace line 152 through the sixth contact hole 360 and the sixth contact pattern 460 as shown in FIG. 13B.
To this end, the insulating layer 200 includes a plurality of sixth contact holes 360 located on the second trace lines 152.
For example, the sixth contact hole 360 is located in a region where the second trace line 152 and the second auxiliary line 252 overlap with each other.
The sixth contact pattern 460 connects the second trace line 152 and the second auxiliary line 252 through the sixth contact hole 360 formed in the insulating film 200.
Through this, even if the insulating film 200 exists between the second trace line 152 and the second auxiliary line 252, the second trace line 152 and the second auxiliary line 252 are electrically connected.
At this time, at least a part of the second trace line 152 and the second auxiliary line 252, which are electrically connected to each other through the sixth contact pattern 460, overlap each other.

The width W7 of the second auxiliary line 252 is different from the width W8 of the second trace line 152.
For example, as shown in FIG. 12, the width W7 of the second auxiliary line 252 is set larger than the width W8 of the second trace line 152.

To simplify the process, the second mesh pattern 120, the second auxiliary mesh electrode 220, the first auxiliary line 251, and the second auxiliary line 252 are formed of the same material.
The first auxiliary line 251 and the first trace line 151 are formed of the same material or different materials.
In addition, the second auxiliary line 252 and the second trace line 152 are formed of the same material or different materials.

  FIG. 14 is a view showing a dummy pattern according to an exemplary embodiment of the present invention.

  Referring to FIG. 14, the touch panel according to the embodiment of the present invention includes a dummy pattern 400.

Characteristic differences such as reflectance and transmittance between a region where the first mesh pattern 110 and the first auxiliary mesh electrode 210 exist and a region where the first mesh pattern 110 and the first auxiliary mesh electrode 210 do not exist. Exists.
Therefore, in order to make the characteristics uniform, a large number of dummy patterns 400 are arranged between the first mesh pattern 110 and the first auxiliary mesh electrode 210.

The dummy pattern 400 is located on the substrate 100 and is in an electrically floating state.
For this reason, the dummy pattern 400 is spaced apart from the first mesh pattern 110 and the first auxiliary mesh electrode 210 by a predetermined distance.
The dummy pattern 400 has a mesh shape like the first mesh pattern 110.

  15 and 16 are views showing a touch panel according to an exemplary embodiment of the present invention. For simplification of description, FIG. 15 mainly shows components existing on the substrate 500, and FIG. 16 mainly shows components existing on the insulating film 600.

  Referring to FIGS. 15 and 16, a touch panel according to an exemplary embodiment of the present invention includes a substrate 500, a first touch electrode 501, an insulating film 600, a second touch electrode 502, a first auxiliary electrode 610, and a second auxiliary electrode 620. Including.

  The first touch electrode 501 and the first auxiliary electrode 610 are disposed on the substrate 500.

  The substrate 500 is formed of various materials. The substrate 500 is made of an insulating material such as glass or resin. Also, the substrate 500 is made of a flexible material that can be bent or folded, and has a single-layer structure or a multi-layer structure. In addition, the substrate 500 has a transparency that allows light to pass therethrough.

  To implement the touch screen function, the touch panel according to the embodiment of the present invention may be combined with a display panel displaying an image. The touch panel according to the exemplary embodiment of the present invention may be classified into an out cell, an on-cell, and an in-cell according to a combination method with a display panel.

  In the touch panel combined with the out-cell type, the substrate 500 is attached to the display panel. In the touch panel combined with the on-cell type, the substrate 500 is an encapsulation thin film used in a display panel. In the in-cell type touch panel, the substrate 500 is one of the layers inside the display panel.

The first touch electrodes 501 are each formed to be long in the first direction (eg, the y-axis direction), and a plurality of first touch electrodes 501 are arranged on the substrate 500 along a second direction (eg, the x-axis direction) intersecting the first direction. To be done.
For example, each first touch electrode 501 includes a plurality of mesh patterns 510 arranged on the substrate 500 along a first direction.
At this time, the mesh patterns 510 are electrically connected to each other.
To this end, the first touch electrode 501 further includes a connection pattern 512 located on the substrate 500 and connecting the mesh patterns 510 to each other.
Each of the first touch electrodes 501 has a mesh shape including a plurality of openings 517, and includes metal lines 515 having a thin width.

  Each of the metal lines 515 included in the first touch electrode 501 has a linear shape extending in a direction intersecting the first direction and the second direction. The metal line 515 included in the first touch electrode 501 on the plane may be disposed not only in a non-display area such as a black matrix of a display panel (not shown) but also in a display area.

  The first touch electrode 501 is formed of various conductive materials. For example, the first touch electrode 501 is formed of an opaque metal such as Ag, Ti, Al, Cu, Cr, Ni, Mo, or an alloy thereof.

The plurality of first auxiliary electrodes 610 are disposed on the substrate 500. The first auxiliary electrode 610 is disposed on the same layer as the first touch electrode 501.
The first auxiliary electrode 610 is electrically connected to at least a part of the second touch electrode 502 located on the insulating film 600.
To this end, each first auxiliary electrode 610 is located under each second touch electrode 502 that is electrically connected to it.
As a result, the second touch electrode 502 and the first auxiliary electrode 610, which are electrically connected to each other, at least partially overlap each other.

  By providing the first auxiliary electrode 610, the resistance of the second touch electrode 502 is reduced, and thus the RC delay can be improved.

Each of the first auxiliary electrodes 610 has a mesh shape including a plurality of openings 617, and includes metal lines 615 having a thin width.
Each of the metal lines 615 included in the first auxiliary electrode 610 has a linear shape extending in a direction intersecting the first direction and the second direction. The metal line 615 included in the first auxiliary electrode 610 on the plane is disposed not only in a non-display area such as a black matrix of a display panel (not shown) but also in a display area.
The first auxiliary electrode 610 is formed of various conductive materials. For example, the first auxiliary electrode 610 is formed of an opaque metal such as Ag, Ti, Al, Cu, Cr, Ni, Mo, or an alloy thereof.

  In order to simplify the process, the first touch electrode 501 and the first auxiliary electrode 610 located on the same substrate 500 are formed of the same material.

The insulating film 600 is formed in a wide shape on the upper side of the substrate 500. As a result, the insulating film 600 is located above the first touch electrode 501.
In addition, the insulating film 600 is located above other components (eg, the first auxiliary electrode 610, the first trace line 551, and the second trace line 552) located on the substrate 500.
The insulating layer 600 is formed of various insulating materials such as SiOx and SiNx.

Each of the second touch electrodes 502 is formed to be long in the second direction (eg, the x-axis direction), and a plurality of second touch electrodes 502 are formed on the insulating film 600 along a first direction (eg, the y-axis direction) intersecting the second direction. Arranged.
For example, each of the second touch electrodes 502 overlaps the first auxiliary electrodes 610 that are adjacent to each other in the second direction.
The second touch electrode 502 includes a first portion 560 and a second portion 570 having different pattern shapes. The first portion 560 is arranged in the first region (not shown) and the second portion 570 is arranged in the second region (not shown).

  In FIG. 16, the first area is an area in which the shades of the highest density and the intermediate density are displayed in the shade display of three stages, and the second area is the area in which the shade of the lowest density is displayed.

The first portion 560 includes an overlapping portion 561 and a connecting portion 563.
The overlapping portion 561 overlaps the first touch electrode 501. Specifically, the overlapping portion 561 overlaps the connection pattern 512.

  The connecting portions 563 connect the overlapping portions 561. Each of the connecting portions 563 overlaps the center of each of the first auxiliary electrodes 610.

  The second portion 570 is connected to the connecting portion 563 and is disposed outside the connecting portion 563.

The connection part 563 is farther away from the adjacent second auxiliary electrode 620 than the second part 570 connected to the connection part 563 in a plane.
One of the connection parts 563 and one of the second parts 570 connected thereto cover one of the first auxiliary electrodes 610.

  The structure including the pattern shape of the overlapping portion 561, the connecting portion 563, and the second portion 570 will be described later.

  The second touch electrode 502 is formed of various transparent conductive materials. For example, the second touch electrode 502 is made of a material such as ITO, IZO, and IGZO.

The plurality of second auxiliary electrodes 620 are located on the insulating film 600. The second auxiliary electrode 620 is disposed on the same layer as the second touch electrode 502.
The second auxiliary electrode 620 is electrically connected to at least a part of the mesh pattern 510 located on the substrate 500.
To this end, each second auxiliary electrode 620 is located above each mesh pattern 510 electrically connected to it.
As a result, at least a part of the specific mesh pattern 510 and the second auxiliary electrode 620 electrically connected to each other overlap.
By providing the second auxiliary electrode 620, the resistance of the first touch electrode 501 is reduced, and thus the RC delay can be improved.

The second auxiliary electrodes 620 adjacent to each other in the first direction overlap at least a part of one of the first touch electrodes 501.
The second auxiliary electrode 620 includes a third portion 660 and a fourth portion 670 having different pattern shapes. The third portion 660 is disposed in the third region (not shown) and the fourth portion 670 is disposed in the fourth region (not shown). In FIG. 16, the third region is displayed with a shade of medium density, and the fourth region is displayed with a shade of lightest density.

The third portion 660 overlaps the center of each mesh pattern 510.
The fourth portion 670 is connected to the third portion 660 and is disposed outside the third portion 660. One of the fourth portions 670 surrounds one of the third portions 660.
The fourth portion 670 is further closer to the adjacent second touch electrode 502 than the third portion 660 connected to the fourth portion 670.
One of the third parts 660 and one of the fourth parts 670 connected thereto cover one of the mesh patterns 510.

  The structure including the pattern shapes of the third portion 660 and the fourth portion 670 will be described later.

  The second auxiliary electrode 620 is formed of various transparent conductive materials. For example, the second auxiliary electrode 620 is made of a material such as ITO, IZO, and IGZO.

  To simplify the process, the second auxiliary electrode 620 and the second touch electrode 502 located on the same insulating film 600 are formed of the same material.

  Hereinafter, the pattern shape of the second touch electrode 502 of FIG. 16 according to an exemplary embodiment of the present invention will be described.

  17 is an enlarged view of the R6 region of FIG. 16, and FIG. 18 is a sectional view of FIG. 17 based on the line I-I′ of FIG.

  Referring to FIGS. 15 to 18, the overlapping portion 561 covers the connection pattern 512 disposed in the first region and covers the opening 517 defined by the connection pattern 512 disposed in the first region. The overlapping portion 561 does not need to have an opening therein in order to minimize the resistance value and reduce the RC delay of the second touch electrode 502.

  The insulating film 600 does not include a contact hole in a region overlapping with the overlapping portion 561. This is because the second touch electrode 602 including the overlapping portion 561 and the first touch electrode 501 have to be insulated from each other.

  19 is an enlarged view of the region R7 of FIG. 16, and FIG. 20 is a cross-sectional view of FIG. 19 based on the line II-II′ of FIG.

  Referring to FIG. 15, FIG. 16, FIG. 19, and FIG. 20, the connection part 563 covers the first auxiliary electrode 610 arranged in the first region, and the connecting part 563 is formed by the first auxiliary electrode 610 arranged in the first region. Cover the defined opening 617. The connecting portion 563 does not have to have an opening therein.

  Since the connecting portion 563 is farther from the first touch electrode 501 than the second portion 570 on the plane, it is not necessary to provide an opening inside to increase touch sensitivity.

  The touch panel according to the embodiment of the present invention further includes a first contact pattern 810.

The insulating film 600 includes a first contact hole 710.
The first contact hole 710 is formed above the first auxiliary electrode 610.
For example, the first contact hole 710 is located at the intersection of the metal lines 615 included in the first auxiliary electrode 610, as shown in FIG.

  The first contact pattern 810 is formed in the first contact hole 710 formed in the insulating film 600, and electrically connects at least a portion of the first auxiliary electrode 610 and the connection portion 563.

  The first contact pattern 810 may reduce resistance of the connection portion 563 and improve RC delay and touch sensitivity.

  The first contact pattern 810 is formed integrally with the second touch electrode 502. Also, the position and number of the first contact holes 710 may be variously changed.

  21 is an enlarged view of the R8 region of FIG. 16, and FIG. 22 is a cross-sectional view of FIG. 21 based on the line III-III′ of FIG.

  Referring to FIGS. 15, 16, 21, and 22, the second portion 570 includes a first overlapping pattern 571 and a first inner pattern 573. The first overlapping pattern 571 covers the first auxiliary electrode 610 arranged in the second region. The first inner pattern 573 is spaced apart from the first overlapping pattern 571 and is disposed in the opening 617 defined by the first auxiliary electrode 610 on a plane. One of the first inner patterns 573 is disposed in one opening 617 defined by the first auxiliary electrode 610.

  The second portion 570 is closer to the first touch electrode 501 on the plane than the connecting portion 563. An opening 572 is provided inside the second portion 570 to adjust the touch sensitivity of the second portion 570 and the connection portion 563. Exemplarily, the openings 572 provided in the second portion 570 have a constant distance, and the first overlapping pattern 571 and the first inner pattern 573 are spaced apart from each other at a constant distance.

  The first inner pattern 573 is electrically floated.

  The insulating film 600 does not include a contact hole in a region overlapping with the second portion 570. This is for adjusting the touch sensitivity of the second portion 570 and the connection portion 563 in a similar manner.

  Hereinafter, the pattern shape of the second auxiliary electrode 620 of FIG. 16 according to an exemplary embodiment of the present invention will be described.

  23 is an enlarged view of the R9 region of FIG. 16, and FIG. 24 is a cross-sectional view of FIG. 23 based on the line IV-IV′ of FIG.

  Referring to FIGS. 15, 16, 23, and 24, the third portion 660 has a pattern shape similar to that of the connection portion 563 described with reference to FIGS. 19 and 20.

  The third portion 660 covers the mesh pattern 510 arranged in the third region and covers the opening 517 defined by the mesh pattern 510 arranged in the third region. The third portion 660 may not have an opening inside.

  Since the third portion 660 is farther from the second touch electrode 502 on the plane than the fourth portion 670, an opening may not be provided inside to increase touch sensitivity.

  The touch panel according to the embodiment of the present invention further includes a second contact pattern 820.

The insulating film 600 includes a second contact hole 720.
The second contact hole 720 is formed above the mesh pattern 510.
For example, the second contact hole 720 is located at the intersection of the metal lines 515 included in the mesh pattern 510 as shown in FIG.
The second contact pattern 820 is formed in the second contact hole 720 formed in the insulating film 600, and electrically connects at least a part of the mesh pattern 510 and the third part 660.

  The second contact pattern 820 may reduce the resistance of the third portion 660 to improve RC delay and touch sensitivity.

  The second contact pattern 820 is formed integrally with the second auxiliary electrode 620. Also, the position and number of the first contact holes 710 can be variously changed.

  25 is an enlarged view of the region R10 in FIG. 16, and FIG. 26 is a cross-sectional view of FIG. 25 based on the line V-V′ of FIG.

  Referring to FIGS. 15, 16, 25, and 26, the fourth portion 670 has a pattern shape similar to that of the second portion 570 described with reference to FIGS. 21 and 22.

  The fourth portion 670 includes a second overlapping pattern 671 and a second inner pattern 673. The second overlapping pattern 671 covers the mesh pattern 510 arranged in the fourth area. The second inner pattern 673 is disposed in the opening 517 defined by the mesh pattern 510 disposed in the fourth region and separated from the second overlapping pattern 671.

  The fourth portion 670 is closer to the second touch electrode 502 than the third portion 660 on the plane. An opening 672 is provided inside the fourth portion 670 to adjust the touch sensitivity of the fourth portion 670 and the third portion 660 similarly. Exemplarily, the openings 672 provided in the fourth portion 670 have a constant distance, and the second overlapping pattern 671 and the second inner pattern 673 are spaced apart from each other at a constant distance.

  The second inner pattern 673 is electrically floated.

  The insulating film 600 does not include a contact hole in a region overlapping with the fourth portion 670. This is to adjust the touch sensitivity of the fourth portion 670 and the third portion 660 to be similar.

  Referring again to FIGS. 15 to 26, when the second touch electrode 502 covers only a part of the metal lines 515 and 615, a visibility difference occurs between a covered region and a non-covered region. . For example, since the material forming the second touch electrode 502 has a specific refractive index, the light that has passed through the second touch electrode 502 and is reflected by the metal lines 515 and 615 and the second touch electrode 502 does not pass through the metal line. There is an optical difference from the light reflected by 515 and 615. Similarly, when the second auxiliary electrode 620 covers only a part of the metal line 515, there is a difference in visibility between the covered area and the non-covered area.

  The second touch electrode 502 covers the metal line 615 included in the first auxiliary electrode 610 and the metal line 515 included in at least a part of the connection pattern 512. Specifically, the connection part 563 and the second part 570 cover the metal line 615 included in the first auxiliary electrode 610, and the overlapping part 561 covers the metal line 515 included in at least a part of the connection pattern 512. Cover.

  The second auxiliary electrode 620 covers the metal line 515 included in at least a part of the first touch electrode 501. The second auxiliary electrode 620 covers all the metal lines 515 included in the mesh pattern 510.

  In the touch panel according to the exemplary embodiment of the present invention, the second touch electrode 502 and the second auxiliary electrode 620 cover the metal line 515 included in the first touch electrode 501 and the metal line 615 included in the first auxiliary electrode 610. This ensures uniform visibility in all areas.

FIG. 27 is an enlarged view of the R8 region of FIG. 16, showing an embodiment of a form different from the second portion shown in FIG.
The difference from the second portion described with reference to FIG. 21 will be mainly described with reference to FIG. 27.

  The second portion 580 includes a first overlapping pattern 581 and a first inner pattern 583. The first overlapping pattern 581 is substantially the same as the first overlapping pattern 571 described with reference to FIG. 21, and thus a detailed description thereof will be omitted.

The plurality of first inner patterns 583 are arranged in one opening 617 defined by the first auxiliary electrode 610 on a plane. For example, the four first inner patterns 583 are arranged in one opening 617 defined by the first auxiliary electrode 610 on the plane.
The plurality of first inner patterns 583 arranged in the opening 617 defined by the first auxiliary electrode 610 are separated from each other.
One first inner pattern 583 of the embodiment of FIG. 27 is smaller than one first inner pattern 573 of the embodiment of FIG.

  Since the first inner pattern 583 is electrically floated, it forms a parasitic capacitor with the adjacent conductive pattern including the first overlapping pattern 581.

  According to the touch panel of FIG. 27, the size of the first inner pattern 583 can be reduced to reduce the electrostatic capacitance of the parasitic capacitor and improve the sensitivity of the touch panel.

  Referring again to FIG. 25, the fourth portion 670 of the second auxiliary electrode 620 has a structure similar to that of the second portion 580 of FIG. 27. Specifically, the plurality of spaced apart second inner patterns 673 of the second portion 670 are disposed in one opening 517 defined by the mesh pattern 510 on the plane.

  FIG. 28 is an enlarged view of the R11 area in FIG.

  Referring to FIGS. 15, 16 and 28, the insulating film 600 further includes an outer shell contact hole 711. The outer shell contact hole 711 performs a function similar to that of the first contact hole 710. In FIG. 28, the first contact hole 710 is omitted for convenience of illustration.

  The outer shell contact hole 711 is located in a region that is closest to the overlapping portion 561 in the second direction on the plane in the region that overlaps the metal line 615 included in the first auxiliary electrode 610.

  A first outer shell contact pattern (not shown) is arranged in the outer shell contact hole 711. The first outer shell contact pattern (not shown) electrically connects at least a portion of the first auxiliary electrode 610 and the connection portion 563 of the second touch electrode 502.

  The outer shell contact hole 711 is separated from the overlapping portion 563 on the plane by the first distance T1 in the second direction. Illustratively, the first distance T1 is within 10 μm.

The outer shell contact holes 711 are arranged to be adjacent to each other along the first direction.
If the outer shell contact hole 711 overlaps with the metal line 615 included in the first auxiliary electrode 610, the outer shell contact hole 711 is formed at a position other than the intersection of the metal lines 615.

  Among the contact holes that connect the first auxiliary electrode 610 and the second touch electrode 502, the contact hole located closest to the overlapping portion 563 on the plane is a metal line included in the first auxiliary electrode 610. It is defined as an outer shell contact hole 711 that is not the first contact hole 710 even if it is located at the intersection 615.

  29 is an enlarged view of the R12 region shown in FIG. 16, and FIG. 30 is a cross-sectional view of FIG. 29 taken along the line VI-VI′ of FIG. 29.

  Referring to FIGS. 15, 16, 29, and 30, a touch panel according to an exemplary embodiment of the present invention includes a first trace line 551, a second trace line 552, a first pad 631, a second pad 632, and a third contact. The pattern 830 and the fourth contact pattern 840 are included.

Referring to FIG. 15, the first trace lines 551 are located on the substrate 500 and are electrically connected to the first touch electrodes 501, respectively.
For example, the first trace line 551 is located in the outer shell region of the substrate 500.
In addition, each one end of the first trace line 551 is connected to a mesh pattern located outside of the mesh pattern 510 included in each first touch electrode 501, and each other end of the first trace line 551 is The extension is formed toward the first pad 631.

Referring to FIG. 15, the second trace line 552 is disposed on the same layer as the first trace line 551 and is electrically connected to the first auxiliary electrode 610.
The second trace line 552 is located in the outer shell region of the substrate 500 and is electrically connected to the second touch electrode 502 located on the insulating film 600 through the first auxiliary electrode 610 and the second contact pattern 820.
To this end, one end of the second trace line 552 is connected to the first auxiliary electrode located outside the first auxiliary electrode 610, and the other end of the second trace line 552 is connected to the second pad 632. Is formed extending toward.

  For convenience of the process, the mesh pattern 510, the first auxiliary electrode 610, the first trace line 551, and the second trace line 552 are formed of the same material.

The insulating film 600 includes a large number of third contact holes 730 and a large number of fourth contact holes 740.
Each third contact hole 730 is formed on the other end of the first trace line 551.
For example, the third contact hole 730 is located in a region where the first trace line 551 and the first pad 631 overlap each other.

In addition, each fourth contact hole 740 is formed on the other end of the second trace line 552.
For example, the fourth contact hole 740 is located in a region where the second trace line 552 and the second pad 632 overlap each other.

  The first pad 631 and the second pad 632 are located on the insulating film 600. For example, the first pad 631 and the second pad 632 are located in the outer shell region of the insulating film 600.

The first pad 631 is connected to the other end of the first trace line 551 through the third contact pattern 830.
In addition, the second pad 632 is connected to the other end of the second trace line 552 through the fourth contact pattern 840.
The third contact pattern 830 connects the first pad 631 and the first trace line 551 to each other through a plurality of third contact holes 730 formed in the insulating film 600.
In addition, the third contact pattern 830 is formed integrally with the first pad 631.
The fourth contact pattern 840 connects the second pad 632 and the second trace line 552 to each other through a plurality of fourth contact holes 740 formed in the insulating film 600.
Also, the fourth contact pattern 840 is formed integrally with the second pad 632.

  31 is an enlarged view of the R13 region shown in FIG. 16, and FIGS. 32A and 32B are sectional views of FIG. 31 based on the line VII-VII′ of FIG. 31. However, FIG. 32A and FIG. 32B illustrate different embodiments.

  Referring to FIGS. 16, 31, 32A, and 32B, the touch panel according to the embodiment of the present invention includes a first auxiliary line 651.

The first auxiliary line 651 is located on the insulating film 600. For example, the first auxiliary line 651 is located in the outer shell region of the insulating film 600.
The first auxiliary lines 651 are electrically connected to the first trace lines 551, respectively.
By providing the first auxiliary line 651, the resistance of the first trace line 551 can be reduced, and thus the RC delay can be improved.
At this time, the first auxiliary line 651 is directly connected to the upper side of the first trace line 551 as shown in FIG. 32A.
For example, at least a portion of the first auxiliary line 651 directly contacts the first trace line 551.

In general, the first auxiliary line 651 is connected to the first trace line 551 through the fifth contact hole 750 and the fifth contact pattern 850 as shown in FIG. 32B.
To this end, the insulating layer 600 includes a plurality of fifth contact holes 750 located on the first trace lines 551.
For example, the fifth contact hole 750 is located in a region where the first trace line 551 and the first auxiliary line 651 overlap each other.
The fifth contact pattern 850 connects the first trace line 551 and the first auxiliary line 651 to each other through the fifth contact hole 750 formed in the insulating film 600.
Through this, even if the insulating film 600 exists between the first trace line 551 and the first auxiliary line 651, the first trace line 551 and the first auxiliary line 651 are electrically connected.
At this time, at least a part of the first trace line 551 and the first auxiliary line 651, which are electrically connected to each other through the fifth contact pattern 850, overlap each other.

  33 is an enlarged view of the R14 region shown in FIG. 16, and FIGS. 34A and 34B are cross-sectional views of FIG. 33 based on the line VIII-VIII′ of FIG. 33. However, different embodiments are illustrated in FIGS. 34A and 34B.

  Referring to FIGS. 16, 33, 34A, and 34B, the touch panel according to the embodiment of the present invention includes a second auxiliary line 652.

The second auxiliary line 652 is arranged on the same layer as the first auxiliary line 651. The second auxiliary line 652 is located on the insulating film 600. For example, the second auxiliary line 652 is located in the outer shell region of the insulating film 600.
Each second auxiliary line 652 is electrically connected to each second trace line 552.
By providing the second auxiliary line 652, the resistance of the second trace line 552 may be reduced, thereby improving the RC delay.
At this time, the second auxiliary line 652 is directly connected to the upper side of the second trace line 552 as shown in FIG. 34A.
For example, at least a portion of the second auxiliary line 652 directly contacts the second trace line 552.

In general, the second auxiliary line 652 is connected to the second trace line 552 through the sixth contact hole 760 and the sixth contact pattern 860 as shown in FIG. 34B.
To this end, the insulating layer 600 includes a plurality of sixth contact holes 760 located on the second trace lines 552.
For example, the sixth contact hole 760 is located in a region where the second trace line 552 and the second auxiliary line 652 overlap each other.
The sixth contact pattern 860 connects the second trace line 552 and the second auxiliary line 652 through the sixth contact hole 760 formed in the insulating film 600.
Through this, even if the insulating film 600 exists between the second trace line 552 and the second auxiliary line 652, the second trace line 552 and the second auxiliary line 652 are electrically connected.
At this time, at least a part of the second trace line 552 and the second auxiliary line 652, which are electrically connected to each other through the sixth contact pattern 860, overlap each other.

  The second touch electrode 502, the second auxiliary electrode 620, the first auxiliary line 651, and the second auxiliary line 652 are formed of the same material to simplify the process.

  Hereinafter, the pattern shape of the second touch electrode 502 of FIG. 16 according to another embodiment of the present invention will be described.

  FIG. 35 is an enlarged view of the R6 area in FIG. The difference between the overlapping portion 561' and the overlapping portion 561 shown in FIG. 17 will be mainly described with reference to FIGS. 15, 16 and 35.

The overlapping portion 561′ covers a part of the connection pattern 512 arranged in the first region. In other words, the overlapping portion 561′ exposes a part of the connection pattern 512 arranged in the first region.
The overlapping portion 561 ′ has an opening 562 that exposes the connection pattern 512.
The overlapping portion 561 ′ covers the intersection of the metal lines 515 included in the connection pattern 512. The overlapping portion 561 ′ exposes a portion that is not an intersection of the metal lines 515 included in the connection pattern 512 through the opening 562.

  In FIG. 35, the opening 562 has a rectangular shape as an example. However, the opening 562 is not limited thereto, and may have various shapes, for example, an elliptical shape, a polygonal shape, and the like.

  FIG. 36 is an enlarged view of the R7 area in FIG. The connection part 563' will be described with reference to FIGS. 15, 16 and 36, focusing on the differences from the connection part 563 shown in FIG.

Referring to FIG. 36, the connection part 563 ′ covers a portion of the first auxiliary electrode 610 disposed in the first region. In other words, the connection part 563' exposes a part of the first auxiliary electrode 610 arranged in the first region.
The connection part 563 ′ has an opening 564 exposing the first auxiliary electrode 610. The opening 564 has various shapes, for example, an elliptical shape and a polygonal shape.
The connection part 563 ′ covers the intersection of the metal lines 615 included in the first auxiliary electrode 610. The connection part 563 ′ exposes a part of the metal line 615 included in the first auxiliary electrode 610, which is not an intersection, through the opening 564.

  Since the description of the first contact hole 710 and the first contact pattern 810 is substantially the same as that described with reference to FIGS. 19 and 20, a detailed description thereof will be omitted.

  FIG. 37 is an enlarged view of the R8 area in FIG. The second portion 570' will be described with reference to FIGS. 15, 16 and 37, focusing on the difference from the second portion 570 shown in FIG.

  Referring to FIG. 37, the second portion 570' may be disposed outside the connection portion 563'. The second portion 570' includes a first inner pattern 574. The first inner pattern 574 is disposed in the opening 617 defined by the first auxiliary electrode 610 on the plane. In FIG. 37, one of the first inner patterns 574 arranged in one opening 617 defined by the first auxiliary electrode 610 is illustrated as an example.

  The second portion 570' has an opening 575 provided between the second portion 570' and the adjacent first auxiliary electrode 610. The second portion 570' exposes the metal line 615 included in the first auxiliary electrode 610 disposed in the second region through the opening 575. Illustratively, the openings 575 provided in the second portion 570' have a constant space.

  The first inner pattern 574 is electrically floated.

  FIG. 38 is an enlarged view of the R6 region of FIG. 16, showing an embodiment of a form different from the overlapping portion shown in FIG. 35.

The overlapping portion 561″ covers a part of the connecting pattern 512 arranged in the first region. In other words, the overlapping portion 561″ exposes a part of the connecting pattern 512 arranged in the first region.
The overlapping portion 561″ includes an opening 568 exposing the connection pattern 512.
The overlapping portion 561″ covers a portion of the metal line 515 included in the connection pattern 512 that is not an intersection. The overlapping portion 561″ exposes an intersection of the metal line 515 included in the connection pattern 512 through the opening 562.

  In FIG. 38, the opening 568 exemplarily shows a cross shape exposing the intersection of the metal line 515 included in the connection pattern 512 and a part of the periphery thereof. However, the opening 568 is not limited to this, and may have various shapes, for example, an elliptical shape and a polygonal shape.

  Hereinafter, the pattern shape of the second auxiliary electrode 620 of FIG. 16 according to another embodiment of the present invention will be described.

  FIG. 39 is an enlarged view of the R9 area in FIG. The difference between the third portion 660' and the third portion 660 shown in FIG. 23 will be mainly described with reference to FIGS. 15, 16 and 39.

The third portion 660′ covers a part of the mesh pattern 510 arranged in the third region. In other words, the third portion 660′ exposes a part of the mesh pattern 510 arranged in the third region.
The third portion 660 ′ has an opening 664 exposing the mesh pattern 510. The opening 664 has various shapes, such as an ellipse and a polygon.
The third portion 660 ′ covers the intersection of the metal lines 515 included in the mesh pattern 510. The third portion 660 ′ exposes a portion of the mesh pattern 510 that is not an intersection of the metal lines 515 through the opening 664.

  Since the description of the second contact hole 720 and the second contact pattern 820 is substantially the same as that described with reference to FIGS. 23 and 24, a detailed description thereof will be omitted.

  FIG. 40 is an enlarged view of the R10 area in FIG. The difference between the fourth portion 670' and the fourth portion 670 shown in FIG. 25 will be mainly described with reference to FIGS. 15, 16 and 40.

The fourth portion 670' includes a second inner pattern 674. The second inner pattern 674 is disposed in the opening 517 defined by the mesh pattern 510 on the plane. In FIG. 39, one in which one of the second inner patterns 674 is arranged in one opening 517 defined by the mesh pattern 510 is illustrated as an example.
The fourth portion 670 ′ has an opening 675 provided between the fourth portion 670 ′ and the adjacent second inner pattern 674. The fourth portion 670 ′ exposes the metal line 515 included in the mesh pattern 510 arranged in the fourth region through the opening 675. Exemplarily, the openings 675 provided in the fourth portion 670' have a constant space.

  The second inner pattern 674 is electrically floated.

  Referring to FIGS. 35 to 40, the second touch electrode 502 exposes the metal line 615 included in the first auxiliary electrode 610 and the metal line 515 included in at least a part of the connection pattern 512. Specifically, the connection part 563' exposes a part of the metal line 615 included in the first auxiliary electrode 610, and the second part 570' exposes the metal line 615 included in the first auxiliary electrode 610. The overlapping portion 561′ exposes a part of the connection pattern 512.

  The second auxiliary electrode 620 exposes a part of the metal line 515 included in the first touch electrode 501. Specifically, the third portion 660' exposes the metal line 515 included in the first touch electrode 501, and the fourth portion 670' exposes the metal line 515 included in the first touch electrode 501.

  In the touch panel according to the embodiment of the present invention, the second touch electrode 502 and the second auxiliary electrode 620 expose the metal line 515 included in the first touch electrode 501 and the metal line 615 included in the first auxiliary electrode 610. As a result, uniform visibility can be ensured in the entire area.

  FIG. 41 is a view showing a dummy pattern according to an exemplary embodiment of the present invention.

  Referring to FIG. 41, the touch panel according to the embodiment of the present invention includes a dummy pattern 800.

There is a difference in characteristics such as reflectance and transmittance between a region where the mesh pattern 510 and the first auxiliary electrode 610 exist and a region where the mesh pattern 510 and the first auxiliary electrode 610 do not exist.
Therefore, in order to make the characteristics uniform, a large number of dummy patterns 800 are arranged between the mesh pattern 110 and the first auxiliary electrode 610 on a plane.

The dummy pattern 800 is located on the substrate 500 and is in an electrically floating state.
Therefore, the dummy pattern 800 is spaced apart from the mesh pattern 510 and the first auxiliary electrode 610 by a predetermined distance.
The dummy pattern 800 has a mesh shape like the mesh pattern 510.

  A person having ordinary knowledge in the technical field to which the present invention pertains can easily understand that the present invention can be embodied in other specific forms without changing the technical idea and essential characteristics of the present invention. can do. Therefore, it should be understood that the embodiments described above are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the claims which will be described later from the above detailed description, and all modifications and variations derived from the meaning and scope of the claims and their equivalents are within the scope of the present invention. Should be construed as included in.

500 substrate 501 first touch electrode 502 second touch electrode 510 mesh pattern 512 connection pattern 551 first trace line 552 second trace line 600 insulating film 610 first auxiliary electrode 620 second auxiliary electrode 651 first auxiliary line 652 second auxiliary line

Claims (10)

Board,
A plurality of first touch electrodes each including a plurality of first mesh patterns located on the substrate;
An insulating film located on the first touch electrode,
A plurality of second touch electrodes each including a plurality of second mesh patterns located on the insulating film;
A plurality of first auxiliary mesh electrodes located on the substrate and electrically connected to at least a part of the second mesh patterns,
Wherein located on the insulating film, seen including and a plurality of second auxiliary mesh electrode which is at least a portion of each electrically connected among the first mesh patterns,
Each of the first mesh pattern and the second mesh pattern includes a metal line forming a plurality of openings, and an extended portion extending outward at an intersection of the metal lines.
Each of the first auxiliary mesh electrode and the second auxiliary mesh electrode includes a metal line forming a plurality of openings, and an extension part extended outward at an intersection of the metal lines . A first contact pattern connecting at least a part of the first mesh pattern and the second auxiliary mesh electrode through a plurality of first contact holes formed in the insulating film;
Through the plurality of second contact holes formed in the insulating film, and a second contact pattern to each connecting between at least a portion between the first auxiliary mesh electrode of the second mesh pattern, further comprising a The touch panel according to claim 1, wherein the touch panel is a touch panel. The second mesh pattern and the first auxiliary mesh electrode electrically connected to each other at least partially overlap each other,
The touch panel as set forth in claim 1, wherein the first mesh pattern and the second auxiliary mesh electrode electrically connected to each other at least partially overlap each other. The first mesh pattern and the first auxiliary mesh electrode are formed of the same material,
The touch panel as set forth in claim 1, wherein the second mesh pattern and the second auxiliary mesh electrode are formed of the same material. Before SL width of the metal lines included in the first auxiliary mesh electrode is smaller than the width of the second metal contained in the mesh pattern lines,
The touch panel as set forth in claim 1, wherein a width of a metal line included in the second auxiliary mesh electrode is larger than a width of a metal line included in the first mesh pattern. A plurality of first pads and second pads located on the insulating film;
A plurality of first trace lines located on the same layer as the first touch electrodes and electrically connected to the first touch electrodes;
A plurality of second trace lines located on the same layer as the first touch electrodes and electrically connected to the second touch electrodes;
A plurality of third contact patterns connecting the first pad and the first trace line through a plurality of third contact holes formed in the insulating film;
A plurality of fourth contact patterns connecting the second pad and the second trace line through a plurality of fourth contact holes formed in the insulating film;
A plurality of first auxiliary lines located on the insulating film and electrically connected to the first trace lines;
The touch panel as set forth in claim 1, further comprising a plurality of second auxiliary lines located on the insulating film and electrically connected to the second trace lines. The width of the first auxiliary line is different from the width of the first trace line,
The touch panel as set forth in claim 6, wherein a width of the second auxiliary line is different from a width of the second trace line. The touch panel as set forth in claim 1, further comprising a plurality of dummy patterns located between the first mesh pattern and the first auxiliary mesh electrode, wherein the dummy patterns are in a floating state. Board,
A plurality of first touch electrodes each of which is located on the substrate and includes a plurality of mesh patterns, each of the first touch electrodes extending in a first direction;
An insulating film located on the first touch electrode,
Located on the insulating film, and a plurality of second touch electrodes, each extending in the second direction crossing the first direction,
A plurality of first auxiliary electrodes arranged on the same layer as the first touch electrodes, each having a mesh pattern , and electrically connected to at least a part of the second touch electrodes;
A plurality of second auxiliary electrodes arranged on the same layer as the second touch electrodes and electrically connected to at least a part of the first touch electrodes ;
A plurality of dummy patterns located between the mesh pattern of the first touch electrode and the first auxiliary electrode;
The second touch electrode has a first portion disposed in the first region,
Located in different second regions to each other and the first region, seen including a second portion having a first portion and different pattern,
The touch panel , wherein the dummy pattern is in a floating state and has a mesh shape . The first portion includes a first auxiliary electrode disposed on the first region of the first auxiliary electrode, a part of the first touch electrode disposed on the first region of the first touch electrode Covering an opening defined by the first auxiliary electrode arranged in the first region and an opening defined by a part of the first touch electrode arranged in the first region,
The second portion is disposed in the second region, the first overlapping pattern covering the first auxiliary electrode disposed in the second region of the first auxiliary electrode and being spaced apart from the first overlapping pattern. the touch panel according to claim 9, characterized in that it comprises a first inner pattern disposed in said opening defined by said first auxiliary electrode.

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