KR20140003310A - Touch panel and manufacturing method for the same - Google Patents

Touch panel and manufacturing method for the same Download PDF

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Publication number
KR20140003310A
KR20140003310A KR1020120126202A KR20120126202A KR20140003310A KR 20140003310 A KR20140003310 A KR 20140003310A KR 1020120126202 A KR1020120126202 A KR 1020120126202A KR 20120126202 A KR20120126202 A KR 20120126202A KR 20140003310 A KR20140003310 A KR 20140003310A
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KR
South Korea
Prior art keywords
pattern
sensing electrode
electrode
touch panel
sub
Prior art date
Application number
KR1020120126202A
Other languages
Korean (ko)
Inventor
김진복
김도영
최민수
Original Assignee
엘지이노텍 주식회사
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Application filed by 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Priority to US13/932,548 priority Critical patent/US9609736B2/en
Publication of KR20140003310A publication Critical patent/KR20140003310A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

Abstract

The present invention relates to a touch panel and a method of manufacturing the same. The touch panel according to the present invention comprises: a sensing electrode pattern formed on an active region; And a wiring pattern connected to the sensing electrode pattern, wherein the wiring pattern is configured to be disposed in an area excluding the side of the active area, thereby removing the bezel formed on the side of the touch panel. Maximize the use area on the front part to improve user convenience, minimize unnecessary wiring electrodes and printed patterns, and arrange more touch panels on the touch panel production sheet to minimize the manufacturing cost of the touch panel. Can be.
In addition, the touch panel according to an embodiment includes a substrate defining an active region and an inactive region disposed only at an upper end or a lower end of the active area; A sensing electrode sensing a position in the active area; Wires connecting the sensing electrodes; A plurality of ground electrodes for separating electrical signals of the sensing electrodes; A first pad part disposed at an end of the wiring and connected to the circuit board; And a second pad part disposed at one end of at least one of the ground electrodes and connected to the circuit board, wherein the number of the second pad parts is smaller than the number of the ground electrodes.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a touch panel,

The present invention relates to a touch panel and a method of manufacturing the same, and to a touch panel and a method of manufacturing the same for improved user convenience.

2. Description of the Related Art In electronic apparatuses such as personal digital assistants (PDA), notebook computers, OA apparatuses, medical apparatuses or car navigation systems, touch panels for providing input means (pointing devices) . BACKGROUND ART [0002] Capacitive type, resistive type, electromagnetic induction type, and optical type are known as typical touch panels. Recently, capacitance type touch panels are widely used.

The front panel of the touch panel generally includes an active area for recognizing a user's touch command and an inactive area for not recognizing a touch command, and a bezel belongs to an inactive area.

1 illustrates a touch panel according to the related art.

The touch panel according to the prior art generally consists of two sensing electrode layers 111. That is, the second sensing electrode layer is formed to be stacked on the first sensing electrode layer to sense a user's touch command, and a transparent window is formed on the sensing electrode layer to form a touch panel.

When the touch panel is composed of the two sensing electrode layers 111 as described above, the electrode pattern of the first sensing electrode layer among the sensing electrode layers 111 is wired from left to right or from right to left, and the second sensing Wiring is formed from the top of the electrode pattern of the electrode layer.

Since the electrode pattern of the first sensing electrode layer is formed from left to right or from right to left as described above, a wiring pattern 112 connected to the electrode pattern is formed on the left and right sides of the touch panel, thereby inevitably forming a bezel. Is formed.

Therefore, according to the prior art, the bezel formed on the left and right sides of the touch panel has a problem in that the use area of the user is limited at the front of the touch panel, resulting in inconvenience in using the touch panel.

Meanwhile, ground electrodes for separating an electrical signal may be further disposed between the two sensing electrodes. In this case, a wiring pad to which the wiring pattern and the circuit board are connected and a ground electrode pad to which the ground electrode and the circuit board are connected should be provided. That is, the number of bonding portions for bonding with the circuit board increases due to the number of wiring pads and ground electrode pads.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and removes the bezel formed on the side of the touch panel to maximize the use area on the front part of the touch panel, thereby improving user convenience and unnecessary wiring electrodes. And to minimize the printed pattern, and to arrange more touch panels on the touch panel production sheet (array) to reduce the manufacturing cost of the touch panel.

In addition, it is possible to improve the reliability of the touch panel by reducing the number of bonding portions.

Touch panel according to an embodiment of the present invention for solving the above problems, the sensing electrode pattern formed on the active area; And a wiring pattern connected to the sensing electrode pattern, wherein the wiring pattern is disposed in an area excluding a side surface of the active area.

According to another embodiment of the present invention, the wiring pattern is disposed on the top or bottom side of the active region.

According to another embodiment of the present invention, the wiring pattern is disposed on a region where the FPCB bonding portion is formed.

According to another embodiment of the present invention, the sensing electrode pattern has an end of the sensing electrode pattern formed in the direction of the upper side or the lower side of the active region and is connected to the wiring pattern.

According to another embodiment of the present invention, the touch panel includes: a sensing electrode pattern layer in which a first sensing electrode pattern and a second sensing electrode pattern are formed; An adhesive material layer formed on the sensing electrode pattern layer; And a transparent window attached to the adhesive material layer, wherein the first sensing electrode pattern and the second sensing electrode pattern are arranged to have a direction in an upper or lower direction of the touch panel.

According to another embodiment of the present invention, the touch panel includes: a first sensing electrode pattern layer on which a first sensing electrode pattern is formed; An insulating layer formed on the first sensing electrode pattern layer; A second sensing electrode pattern layer formed on the insulating layer to form a second sensing electrode pattern; An adhesive material layer formed on the second sensing electrode pattern layer; And a transparent window attached to the adhesive material layer, wherein the first sensing electrode pattern and the second sensing electrode pattern are arranged to have a direction in an upper or lower direction of the touch panel.

According to another embodiment of the present invention, the first sensing electrode pattern and the second sensing electrode pattern may be a pulse pattern, a zigzag pattern, a polygonal pattern, or a combination of the polygonal pattern and the line.

According to another embodiment of the present invention, the transparent window further comprises a printing pattern disposed on the top or bottom of the active area of the touch panel.

In the method of manufacturing a touch panel according to the present invention, a sensing electrode pattern is formed on an active region of a touch panel, and a wiring pattern connected to the sensing electrode pattern is formed in an area except a side of the active region.

According to another embodiment of the present invention, when the wiring pattern is formed, the wiring pattern is formed by arranging the upper or lower side of the active region.

According to another embodiment of the present invention, when the wiring pattern is formed, the wiring pattern is formed by arranging on the region where the FPCB bonding portion is formed.

According to another embodiment of the present invention, when the sensing electrode pattern is formed, an end of the sensing electrode pattern is formed in a direction of an upper side or a lower side of the active region.

According to another embodiment of the present invention, when the sensing electrode pattern is formed, the sensing electrode pattern is formed by arranging the sensing electrode pattern to have a directional direction in the upper or lower direction of the touch panel.

According to another embodiment of the present invention, when the sensing electrode pattern is formed, the sensing electrode pattern is a diamond pattern, a block pattern, a bar pattern, a pulse pattern, a zigzag pattern, a polygon pattern or a line with the polygon pattern. Form in a combined pattern.

According to an embodiment, a touch panel may include: a substrate on which an active region and an inactive region defined only at an upper end or a lower end of the active area are defined; A sensing electrode sensing a position in the active area; Wires connecting the sensing electrodes; A plurality of ground electrodes for separating electrical signals of the sensing electrodes; A first pad part disposed at an end of the wiring and connected to the circuit board; And a second pad part disposed at one end of at least one of the ground electrodes and connected to the circuit board, wherein the number of the second pad parts is smaller than the number of the ground electrodes.

According to the present invention, the bezel formed on the side of the touch panel may be removed to maximize the use area on the front part of the touch panel, thereby improving user convenience.

In addition, according to the present invention it is possible to minimize the occurrence of defects by minimizing unnecessary wiring electrodes and printed patterns, and to reduce the manufacturing cost of the touch panel by arranging more touch panels on the touch panel production sheet.

Meanwhile, according to the present invention, when both the sensing electrode and the ground electrode are formed on the same plane, the number of bonding portions between the sensing electrode, the ground electrode, and the circuit board can be reduced. In other words, it is possible to secure a structure that is advantageous for bonding by reducing the width of the bonding portion.

1 is a view showing a touch panel according to the related art.
2 illustrates a touch panel according to an embodiment of the present invention.
3 to 6 are views for explaining a touch panel according to an embodiment of the present invention.
7 to 10 are views for explaining a touch panel according to another embodiment of the present invention.
11 is a plan view illustrating a touch panel according to an embodiment of the present invention.
FIG. 12 is a plan view illustrating only a sensing electrode in FIG. 11.
FIG. 13 is an enlarged plan view of B of FIG. 12.
FIG. 14 is a plan view illustrating only the ground electrode of FIG. 11.
FIG. 15 is a cross-sectional view taken along the line CC ′ in FIG. 13.
16 is a cross-sectional view of a touch panel according to another exemplary embodiment.
17 is a plan view of a touch panel according to another exemplary embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail to avoid unnecessarily obscuring the subject matter of the present invention. In addition, the size of each component in the drawings may be exaggerated for the sake of explanation and does not mean a size actually applied.

2 illustrates a touch panel according to an embodiment of the present invention. A touch panel according to an embodiment of the present invention will be described with reference to FIG. 2.

As illustrated in FIG. 2, in the touch panel according to the exemplary embodiment, a sensing electrode pattern 215 is formed on an active region, and a wiring pattern 260 connected to the sensing electrode pattern 215 is formed. .

Referring to FIG. 2, the sensing electrode pattern 215 includes a first sensing electrode pattern 211 and a second sensing electrode pattern 231. The first sensing electrode pattern 211 may include a connection part and a sensor part. The connection part and the sensor part may extend in a first direction. The second sensing electrode pattern 231 may extend in a second direction crossing the first direction. In this case, the second sensing electrode pattern 231 may extend while crossing the connection portion.

In this case, the active area according to the present invention refers to an area in which a user's touch command can be input, and the inactive area refers to a concept opposite to an active area in which a user's touch command can be input. In this case, it is not activated, so the touch command is inputted.

In particular, according to an embodiment of the present invention, the wiring pattern 260 is disposed in an area excluding a side area of the touch panel. That is, since the wiring pattern 260 is formed on the left and right sides of the active area of the touch panel, a bezel area is essential on the left and right sides of the touch panel.

However, according to the present invention, the wiring pattern 260 is formed on the upper side 240 or the lower side of the touch panel active region, not on the left and right sides of the active region of the touch panel. In general, since the FPCB bonding part 230 is formed on the upper side 240 of the active area of the touch panel, when the wiring pattern 260 is formed toward the FPCB bonding part 230, left and right sides of the active area as shown in FIG. 2. Since the wiring pattern does not need to be formed in the region, the wiring pattern 260 can be minimized. Therefore, according to the present invention, the left and right bezels may be removed from the touch panel to maximize the active area of the touch panel.

If the bezel is removed on the left and right sides of the touch panel as described above, it is not necessary to form a print pattern formed on the transparent window, thereby reducing the process.

In addition, when the wiring pattern 260 is formed only on the top 240 of the touch panel, as shown in FIG. 2, it is not necessary to form a separate printing pattern on the bottom of the touch panel, thereby maximizing the active area of the touch panel. The user's convenience can be improved.

Meanwhile, in the embodiment of FIG. 2, the wiring pattern 260 is formed on the upper end of the touch panel. However, when the FPCB bonding unit 230 is configured on the lower side of the touch panel for structural reasons, the wiring pattern is formed. 260 may be configured on the bottom side of the touch panel, and in other cases, the wiring pattern 260 may be arranged on the bottom of the touch panel when it is more advantageous for structural reasons.

3 to 6 are views for explaining a touch panel according to an embodiment of the present invention.

As shown in FIG. 3, the touch panel according to the exemplary embodiment may include a first sensing electrode pattern layer 210, an insulating layer 220, a second sensing electrode pattern layer 230, and an adhesive material layer 240. ) And a transparent window 250.

The first sensing electrode pattern 211 is formed on the first sensing electrode pattern layer 210.

An insulating layer 220 is disposed on the first sensing electrode pattern layer 210, and a second sensing electrode pattern layer 230 is formed on the insulating layer 220.

The second sensing electrode pattern 231 is formed on the second sensing electrode pattern layer 230.

An adhesive material layer 240 is formed on the second sensing electrode pattern layer 230 so that the transparent window 250 is attached to the adhesive material layer 240.

That is, according to the present invention, as shown in FIG. 3, a separate wiring pattern is not formed on the side of the touch panel, and the wiring pattern is formed on the top or bottom side of the active area of the touch panel. Therefore, as shown in FIG. 3, the bezel may be removed from the side of the touch panel.

FIG. 4 illustrates the first sensing electrode pattern 211 and the second sensing electrode pattern 231 formed as described above, and FIG. 5 illustrates the first sensing electrode pattern 211 formed on the first sensing electrode pattern layer. 6 illustrates a second sensing electrode pattern 231 formed on the second sensing electrode pattern layer.

As shown in FIGS. 4 to 6, the first sensing electrode pattern 211 and the second sensing electrode pattern 231 are disposed to have a direction in an upper or lower direction of the touch panel, and each sensing electrode pattern An end of is formed in the direction of the top or bottom side of the active area of the touch panel, and a wiring pattern is formed at the end thereof.

Meanwhile, as illustrated in FIG. 5, the first sensing electrode pattern 211 may be formed as a hammer pattern, and as illustrated in FIG. 6, the second sensing electrode pattern 231 may be configured as a zigzag pattern.

In addition to the above pattern, the first sensing electrode pattern 211 and the second sensing electrode pattern 231 are not only diamond patterns, block patterns, bar patterns, pulse patterns, zigzag patterns, but also polygons such as triangles and squares. It may be composed of various types of patterns such as a pattern or a pattern in which the polygon pattern and the line are combined.

7 to 10 are views for explaining a touch panel according to another embodiment of the present invention.

As shown in FIG. 7, the touch panel according to the exemplary embodiment includes a sensing electrode pattern layer 210, an adhesive material layer 240, and a transparent window 250.

The first sensing electrode pattern 211 and the second sensing electrode pattern 231 are formed together on the sensing electrode pattern layer 210.

An adhesive material layer 240 is formed on the sensing electrode pattern layer 210 so that the transparent window 250 is attached to the adhesive material layer 240.

That is, even in an embodiment in which the first sensing electrode pattern 211 and the second sensing electrode pattern 231 are formed together on one sensing electrode pattern layer 210 as shown in FIG. Since a separate wiring pattern is not formed and the wiring pattern is formed by being disposed on the upper or lower side of the active area of the touch panel, the wiring pattern may be formed by removing the bezel from the side of the touch panel as shown in FIG. 7.

FIG. 8 illustrates the first sensing electrode pattern 211 and the second sensing electrode pattern 231, and FIG. 9 illustrates the first sensing electrode pattern 211 and the wiring pattern 260. The second sensing electrode pattern 231 and the wiring pattern 260 are illustrated.

As shown in FIGS. 9 to 10, the first sensing electrode pattern 211 and the second sensing electrode pattern 231 are disposed to have a direction in an upper or lower direction of the touch panel, and each sensing electrode pattern The end of is formed in the direction of the top or bottom side of the active area of the touch panel and the wiring pattern 260 is formed at the end thereof.

In this case, as illustrated in FIGS. 9 and 10, the first sensing electrode pattern 211 and the second sensing electrode pattern 231 may be configured as a pulse pattern.

In addition to the above pattern, the first sensing electrode pattern 211 and the second sensing electrode pattern 231 are not only diamond patterns, block patterns, bar patterns, pulse patterns, zigzag patterns, but also polygons such as triangles and squares. It may be composed of various types of patterns such as a pattern or a pattern in which the polygon pattern and the line are combined.

As described above, various types of patterns are arranged to have a direction toward the top or bottom of the touch panel, and when the ends of each sensing electrode pattern are disposed on the top or bottom of the touch panel, a wiring pattern connected to the sensing electrode pattern is formed. Located at the top or bottom of the touch panel. Thus, the bezel can be removed from the side of the touch panel, thereby maximizing the use area on the front portion of the touch panel.

Hereinafter, a method of manufacturing a touch panel according to an embodiment of the present invention will be described with reference to FIGS. 2, 4, and 8.

In the method of manufacturing the touch panel according to the exemplary embodiment of the present invention, as illustrated in FIG. 2, the sensing electrode pattern 215 is formed on the active region of the touch panel, and in the region except the side surface of the active region, A wiring pattern 260 connected to the sensing electrode pattern 215 is formed.

As illustrated in FIG. 2, the sensing electrode pattern 215 has an end of the sensing electrode pattern 215 formed in a direction of an upper or lower side of the active region, and a wiring pattern is formed at the end of the sensing electrode pattern 215. 260 is connected.

At this time, when the wiring pattern 260 is formed, as shown in FIG. 2, the wiring pattern is formed on the upper side 240 of the active region, or in another embodiment, the wiring pattern is formed on the lower side of the active region. It can be formed by arranging.

That is, the wiring pattern 260 may be formed at the top or bottom of the active area of the touch panel according to the position where the FPCB bonding portion 230 of the touch panel is formed.

In other words, when the FPCB bonding part 230 is formed at the top of the active region, the wiring pattern 260 is formed at the top of the active region, and when the FPCB bonding part 230 is formed at the bottom of the active region, the wiring is formed. The pattern 260 may be formed at the bottom of the active region.

Meanwhile, in the formation of the sensing electrode pattern, as shown in FIGS. 4 and 8, the sensing electrode patterns are disposed to have directionality in the upper or lower direction of the touch panel, and the sensing electrode patterns have a diamond pattern and a block pattern. , A bar pattern, a pulse pattern, a zigzag pattern, a polygon pattern, or a combination pattern of the polygon pattern and the line. As described above, when the sensing electrode patterns are formed in various shapes, the sensing electrode patterns may be formed in one layer, or the thickness of the touch panel may be reduced and the generation of noise may be prevented.

11 to 17, a touch panel according to an embodiment will be described in detail. 11 is a plan view illustrating a touch panel according to an embodiment of the present invention. FIG. 12 is a plan view illustrating only a sensing electrode in FIG. 11. FIG. 13 is an enlarged plan view of B of FIG. 12. FIG. 14 is a plan view illustrating only the ground electrode of FIG. 11. FIG. 15 is a cross-sectional view taken along the line CC ′ in FIG. 13. 16 is a cross-sectional view of a touch panel according to another exemplary embodiment. 17 is a plan view of a touch panel according to another exemplary embodiment.

11 to 16, a touch panel according to an embodiment may include a substrate 100, a sensing electrode 210, a ground electrode 220, a wiring 240, a first pad part 241, and a second pad. Part 251, 252 and a circuit board are included.

The substrate 100 includes an active region AA and an inactive region UA. In this case, the active area AA according to the present invention refers to an area in which a user's touch command can be input, and the inactive area UA refers to an active area AA in which a user's touch command can be input. As opposed to, it refers to an area in which a touch command is not input since the touch is not activated even when a user's touch is made.

In particular, according to an embodiment of the present invention, the wiring 240 is disposed in the minimum area of the side area of the touch panel. That is, since the wiring 240 is formed on the left and right sides of the active area AA of the touch panel, a bezel area is essential on the left and right sides of the touch panel.

However, according to the present invention, the wiring 240 is disposed in the minimum area of the side area of the touch panel, and the inactive area UA is formed on the top or bottom side of the touch panel active area AA. In general, since the circuit board bonding part is formed on the upper side of the active area AA of the touch panel, when the wiring 240 is formed on the side of the circuit board bonding part, the wiring 240 is formed on the left and right side regions of the active area AA as shown in FIG. 2. Since the pattern 240 does not need to be formed, the wiring 240 can be minimized. Therefore, according to the present invention, it is possible to maximize the active area AA of the touch panel by removing the left and right bezels on the touch panel.

If the bezel is removed on the left and right sides of the touch panel as described above, it is not necessary to form a print pattern formed on the transparent window, thereby reducing the process.

In addition, as shown in FIGS. 11 and 12, when the wiring 240 is formed only at the upper end of the touch panel, a separate printing pattern may not be formed at the lower end of the touch panel, and thus, the active area AA of the touch panel. Can maximize the user's convenience.

11 and 12 illustrate an embodiment in which the wiring 240 is formed on the top of the touch panel. However, when the FPCB bonding unit is configured on the bottom side of the touch panel for structural reasons, the wiring 240 is formed. The touch panel may be configured at a lower side of the touch panel, and in other cases, the wiring 240 may be disposed at the lower side of the touch panel when it is more advantageous for structural reasons.

The touch panel will be described in more detail as follows.

Referring to FIG. 13, the touch panel according to an embodiment may include a sensing electrode 210 for sensing a position in the active area AA. The sensing electrode 210 includes a first sensing electrode 211 and a second sensing electrode 231.

The first sensing electrode 211 may have a first pattern. In detail, the first sensing electrode 211 may include a first sub-electrode 213 and a second sub-electrode 214. The first sub-electrode 213 may extend in a first direction of the substrate. The second sub electrode 214 may be bent from the first sub electrode 213. The second sub-electrode 214 may extend in a second direction crossing the first direction.

Similarly, the second sensing electrode 231 may have a second pattern. In detail, the second sensing electrode 231 may include a third sub-electrode 233 and a fourth sub-electrode 234. The third sub-electrode 233 may extend in the first direction. The fourth sub-electrode 234 may be bent from the third sub-electrode 233. The fourth sub-electrode 234 may extend in the second direction.

In this case, the second sub-electrode 214 and the fourth sub-electrode 234 may be alternately disposed. In detail, an end of the second sub-electrode 214 and an end of the fourth sub-electrode 234 may be alternated with each other. Therefore, the end of the second sub-electrode 214 and the end of the fourth sub-electrode 234 may be disposed so as not to be positioned on the same line.

The bending direction of the second sub electrode 214 and the bending direction of the fourth sub electrode 234 may be opposite to each other in the second direction. That is, as shown in FIG. 3, when the bending direction of the second sub electrode 214 is on the left side of the drawing, the bending direction of the fourth sub electrode 234 is on the right side of the drawing.

An end of the second sub electrode 214 may face the third sub electrode 233.

Similarly, ends of the fourth sub-electrodes 234 may face each other with the first sub-electrodes 213.

Through this arrangement, a coupling area may be formed between the first sensing electrode 211 and the second sensing electrode 231.

Meanwhile, referring to FIG. 13, the second sub-electrodes 214 may be located at both ends of the first sub-electrodes 213, respectively. That is, the first sensing electrode 211 may include two second sub-electrodes 214. The second sub electrodes 214 may be bent at both ends of the first sub electrode 213, respectively. The second sub electrodes 214 may be disposed with the fourth sub electrode 234 interposed therebetween. That is, the second sub-electrodes 214 may sandwich the fourth sub-electrode 234. That is, the second sub electrodes 214 may be positioned above and below the fourth sub electrode 234.

The wire 240 electrically connects the sensing electrode 210. The wire 240 may be led to the upper end of the active area AA by connecting the sensing electrode 210.

In detail, a first wiring 241 is connected to the first sensing electrode 211. The first wiring 241 may extend in the direction of the upper side of the active area AA.

A second wiring 261 is connected to the second sensing electrode 231. The second wiring 261 may extend in the direction of the upper side of the active area AA.

The first pad part 241 connected to the circuit board FPCB is disposed at the end of the wiring 240. The first pad part 241 may bond with the circuit board to apply an electrical signal. The first pad part 241 may be positioned at ends of the first wire 241 and the second wire 261, respectively. That is, the first pad part 241 may include a first wiring pad part 242 positioned at an end of the first wiring 241 and a second wiring pad part positioned at an end of the second wiring 261. 262 is located.

Meanwhile, the ground electrodes 220 are disposed between the sensing electrodes 210. In detail, the ground electrodes 220 may be disposed between the first sensing electrode 211 and the second sensing electrode 231. More specifically, the ground electrodes 220 may be disposed between the first sub-electrode 213 and the third sub-electrode 233. The ground electrodes 220 may distinguish an electrical signal of the sensing electrode 210.

Referring to FIG. 14, the ground electrode 220 includes second pad parts 251 and 252 to be connected to the circuit board. The second pad parts 251 and 252 are disposed at one end E1 of the ground electrode 220.

In this case, the number of the second pad parts 251 and 252 is less than the number of the ground electrodes 220. That is, in the past, the second pad parts 251 and 252 are provided on the ground electrodes 220, respectively, and the number of the ground electrodes 220 and the number of the second pad parts 251 and 252 are the same. In an embodiment, the number of the second pad parts 251 and 252 is smaller than the number of the ground electrodes 220.

In detail, the second pad parts 251 and 252 are positioned at one end E1 of at least one of the ground electrodes 220. More specifically, the ground electrode 220 includes a first ground electrode 221 and a second ground electrode 222 positioned at both ends, and the second pad parts 251 and 252 are the first ground electrode. 221 and one end E1 of the second ground electrode 222, respectively. That is, the second pad parts 251 and 252 are the one of the first ground electrode pad part 251 and the second ground electrode 222 positioned at one end E1 of the first ground electrode 221. The second ground electrode pad part 252 is disposed at the end E1.

Accordingly, no pad portion is formed at one end E1 of the plurality of ground electrodes 220 disposed between the first ground electrode 221 and the second ground electrode 222. Therefore, the number of bonding portions between the second pad portions 251 and 252 and the circuit board can be reduced. In other words, it is possible to secure a structure that is advantageous for bonding by reducing the width of the bonding portion.

The other end E2 opposite to the one end E1 of the ground electrodes 220 is connected to each other. That is, the other ends E2 of the ground electrodes 220 are integrally formed.

Therefore, even when the second pad parts 251 and 252 are formed only on a part of the ground electrodes 220, all of the ground electrodes 220 may be electrically connected to the circuit board.

As illustrated in FIG. 15, the sensing electrode 210 and the ground electrodes 220 may be located on one substrate 100.

However, the embodiment is not limited thereto, and as illustrated in FIG. 16, the sensing electrode 210 and the ground electrodes 220 are positioned on the electrode substrate 120, and the electrode substrate 120 and the substrate ( 100) may be bonded. In this case, the electrode substrate 120 may include various substrates such as a PET film. The electrode base 120 and the substrate 100 may be bonded by an adhesive layer 140. The adhesive layer 140 may include an optically clear adhesive (OCA).

Meanwhile, referring to FIG. 17, the first sensing electrode 211 includes a first sub electrode 213 and a second sub electrode 214, and the second sub electrode 214 is provided as one. That is, the second sub-electrode 214 may be bent at one end of the first sub-electrode 213.

In the foregoing detailed description of the present invention, specific examples have been described. However, various modifications are possible within the scope of the present invention. The technical spirit of the present invention should not be limited to the above-described embodiments of the present invention, but should be determined by the claims and equivalents thereof.

Claims (31)

A substrate defining an active region and an inactive region disposed only at the top or bottom of the active region;
A sensing electrode pattern formed on the active region; And
A wiring pattern connected to the sensing electrode pattern;
The wiring pattern is disposed in the inactive area. The method according to claim 1,
The wiring pattern is,
A touch panel disposed at an upper side or a lower side of the active area. The method according to claim 2,
A junction portion to which the substrate and the circuit board are bonded,
The wiring pattern is disposed on the bonding portion. The method according to claim 2,
The sensing electrode pattern is,
And a terminal of the sensing electrode pattern formed in a direction of an upper side or a lower side of the active region and connected to the wiring pattern. The method according to claim 2,
The touch panel includes:
A sensing electrode pattern layer on which the first sensing electrode pattern and the second sensing electrode pattern are formed;
An adhesive material layer formed on the sensing electrode pattern layer; And
A transparent window attached to the adhesive material layer;
Lt; / RTI >
The first sensing electrode pattern includes a connection part and a sensor part extending in a first direction,
The second sensing electrode pattern extends in a second direction crossing the first direction and crosses the connection part. The method according to claim 2,
The touch panel includes:
A first sensing electrode pattern layer on which the first sensing electrode pattern is formed;
An insulating layer formed on the first sensing electrode pattern layer;
A second sensing electrode pattern layer formed on the insulating layer to form a second sensing electrode pattern;
An adhesive material layer formed on the second sensing electrode pattern layer; And
A transparent window attached to the adhesive material layer;
Lt; / RTI >
The first sensing electrode pattern and the second sensing electrode pattern may be arranged to have a direction in an upper direction or a lower direction of the touch panel. The method according to claim 5 or 6,
The first sensing electrode pattern and the second sensing electrode pattern,
A touch panel which is a diamond pattern, a block pattern, a bar pattern, a pulse pattern, a zigzag pattern, a polygon pattern, or a pattern in which the polygon pattern and the line are combined. The method according to claim 5 or 6,
A printing pattern disposed on an upper or lower end of an active area of the touch panel on the transparent window
Touch panel further comprising. Forming a sensing electrode pattern on the active region of the touch panel,
And forming a wiring pattern connected to the sensing electrode pattern in a region other than the side surface of the active region. The method of claim 9,
At the time of formation of the wiring pattern,
And forming the wiring pattern on the top or bottom side of the active region. The method of claim 9,
At the time of formation of the wiring pattern,
And arranging the wiring pattern on a region where an FPCB bonding portion is formed. The method of claim 9,
In the formation of the sensing electrode pattern,
And a terminal of the sensing electrode pattern in a direction of an upper side or a lower side of the active region. The method of claim 9,
In the formation of the sensing electrode pattern,
The method for manufacturing the touch panel is formed by arranging the sensing electrode pattern to have a direction in the upper or lower direction of the touch panel. The method of claim 9,
In the formation of the sensing electrode pattern,
And the sensing electrode pattern is formed of a diamond pattern, a block pattern, a bar pattern, a pulse pattern, a zigzag pattern, a polygon pattern, or a combination pattern of the polygon pattern and the line. A substrate defining an active region and an inactive region disposed only at the top or bottom of the active region;
A sensing electrode sensing a position in the active area;
Wires connecting the sensing electrodes;
A plurality of ground electrodes for separating electrical signals of the sensing electrodes;
A first pad part disposed at an end of the wiring and connected to the circuit board; And
A second pad part disposed at one end of at least one of the ground electrodes and connected to the circuit board;
The number of the second pad portions is less than the number of ground electrodes. 16. The method of claim 15,
The other end opposite to the one end of the ground electrodes is connected to each other. 17. The method of claim 16,
And the other ends of the ground electrodes are integrally formed. 16. The method of claim 15,
The ground electrode includes a first ground electrode and a second ground electrode located at both ends,
The second pad part includes a third pad part connected to one end of the first ground electrode and a fourth pad part connected to one end of the second ground electrode. 16. The method of claim 15,
The sensing electrode includes a first sensing electrode having a first pattern and a second sensing electrode having a second pattern,
The ground electrode is disposed between the first sensing electrode and the second sensing electrode. 20. The method of claim 19,
The first sensing electrode
A first sub electrode extending in a first direction of the substrate; And
And a second sub-electrode bent from the first sub-electrode and extending in a second direction crossing the first direction. 21. The method of claim 20,
The second sensing electrode
A third sub electrode extending in the first direction; And
And a fourth sub-electrode bent from the third sub-electrode and extending in the second direction. 22. The method of claim 21,
The touch panel, wherein the end of the second sub-electrode and the end of the fourth sub-electrode are arranged to cross each other. 22. The method of claim 21,
The second sub-electrode and the fourth sub-electrode are disposed to be alternated with each other. 22. The method of claim 21,
The bending direction of the second sub-electrode and the bending direction of the fourth sub-electrode are opposite to each other in the second direction. 22. The method of claim 21,
An end of the second sub-electrode faces the third sub-electrode. 22. The method of claim 21,
An end of the fourth sub-electrode faces the first sub-electrode. 22. The method of claim 21,
The second sub-electrodes are positioned at both ends of the first sub-electrode,
The second sub-electrodes are disposed with the fourth sub-electrode interposed therebetween. 22. The method of claim 21,
The ground electrode is disposed between the first sub-electrode and the third sub-electrode. 16. The method of claim 15,
And the sensing electrode and the ground electrodes are directly positioned on the substrate. 16. The method of claim 15,
Further comprising an electrode substrate disposed spaced apart from the substrate,
The sensing electrode and the ground electrodes are disposed on the electrode substrate. 31. The method of claim 30,
The electrode substrate and the substrate are bonded by an adhesive layer.
KR1020120126202A 2012-06-29 2012-11-08 Touch panel and manufacturing method for the same KR20140003310A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150117081A (en) * 2014-04-09 2015-10-19 엘지이노텍 주식회사 Touch panel
KR20170003022A (en) * 2015-06-30 2017-01-09 엘지이노텍 주식회사 Touch window
US10228580B2 (en) 2014-12-30 2019-03-12 Lg Innotek Co., Ltd. Touch panel
US10884548B2 (en) 2014-03-13 2021-01-05 Lg Innotek Co., Ltd. Touch window and display with the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10884548B2 (en) 2014-03-13 2021-01-05 Lg Innotek Co., Ltd. Touch window and display with the same
KR20150117081A (en) * 2014-04-09 2015-10-19 엘지이노텍 주식회사 Touch panel
US10228580B2 (en) 2014-12-30 2019-03-12 Lg Innotek Co., Ltd. Touch panel
KR20170003022A (en) * 2015-06-30 2017-01-09 엘지이노텍 주식회사 Touch window

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