KR20150077831A - Touch sensor integrated type display device - Google Patents

Abstract

The present invention relates to a display device integrated with a touch sensor capable of sensing touch. The display device includes an active area, a routing area, and a pad area. The display device also includes: a plurality of first electrode connection lines which are arranged in the active area, are connected to each of first electrodes arranged in a first direction, and are extended toward the routing area; a plurality of second electrode connection lines which are arranged in the active area, are connected to each of second electrodes arranged in the direction, crossed by the first direction, between the first electrodes, and are extended toward the routing area; a plurality of routing lines which are formed in the routing area and are connected to each extension part of the first connection lines; and a second routing lines which are formed in the routing area and are connected to each extension part of the second connection lines. The display device is formed to have a double-layered structure wherein each of the first routing lines is formed on each layer.

Description

TECHNICAL FIELD [0001] The present invention relates to a touch sensor integrated type display device,

The present invention relates to a touch sensor integrated type display device capable of recognizing a user's touch.

2. Description of the Related Art In recent years, various input devices such as a keyboard, a mouse, a trackball, a joystick, and a digitizer have been used to configure an interface between a user and a home appliance or various information communication devices. However, the use of the above-described input device has a problem in that it requires the user to learn how to use the device and causes inconvenience such as occupying a space. Therefore, there is a growing demand for an input device that is convenient and simple and can reduce malfunctions. In response to such demands, a touch sensor has been proposed in which a user directly touches the screen with a finger or a pen to input information.

The touch sensor is simple, has little malfunction, can be input without using a separate input device, and is also applicable to various display devices because of convenience that the user can quickly and easily operate the contents displayed on the screen have.

The touch sensor can be classified into an add-on type and an on-cell type depending on the structure. In the top plate attaching type, a touch panel is attached to an upper plate of a display device after separately manufacturing a display device and a touch panel formed with a touch sensor. The top plate integral type is a method of directly forming a touch sensor on the surface of the upper glass substrate of the display device.

In the top-panel mounting type, a completed touch panel is mounted on a display device and is mounted thereon, resulting in a thick thickness, and the brightness of the display device becomes dark and visibility deteriorates.

On the other hand, in the case of the integrated top plate, the thickness of the touch sensor can be reduced compared to the top plate type with a separate touch sensor formed on the upper surface of the display device. However, due to the insulating film for insulating the driving electrode layer and the sensing electrode layer, And the manufacturing cost increases due to an increase in the number of processes.

Accordingly, there is a need for a touch sensor integrated type display device capable of solving the problems of the related art, and a touch sensor integrated type display device such as US 7,859,521 is known.

US-A-7,859,521 discloses a touch-sensor integrated type display device in which a common electrode for a display is divided to use both touch driving electrodes for touch driving and touch sensing electrodes for touch sensing, And the touch position and the touch position are recognized.

In the above structure, since the touch driving electrodes and the touch sensing electrodes are formed on the same layer, the electrodes performing the same function are connected to each other by wires so as not to contact each other. Specifically, the touch driving electrodes are connected to the touch driving electrode wirings through the contact holes, and the touch sensing electrodes are connected to each other by the touch sensing electrode wirings through the other contact holes, so that the touch driving electrodes and the touch sensing electrodes are electrically They are not in contact with each other.

However, according to the conventional touch sensor integrated type display device, since the touch driving electrode wirings and the touch sensing electrode wirings are formed as a single layer, the resistance increases and the touch performance is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems of the prior art, and it is an object of the present invention to improve the touch accuracy by using the double routing wiring and reducing the total resistance of the routing wiring, It is an object of the present invention to provide a touch sensor integrated type display device capable of preventing defects caused by residues.

According to an aspect of the present invention, there is provided a touch sensor integrated type display device including an active area, a routing area, and a pad area, the display area being disposed in the active area and being connected to a plurality of first electrodes arranged in a first direction A plurality of first electrode connection lines extending to the routing region; And a plurality of second electrodes connected to the plurality of second electrode wirings disposed in the active area and arranged in the direction crossing the first direction and extending to the plurality of second electrode wirings, Wirings; A plurality of first routing wirings formed in the routing region and connected to the extensions of the plurality of first connection wirings, respectively; And a plurality of second routing wirings formed in the routing region and connected to the extensions of the plurality of second connection wirings, wherein each of the first routing wirings is formed in a multi-layer structure formed in different layers .

In the above configuration, the first routing wiring includes a first routing wiring in a lower layer formed on an insulating film and an upper routing wiring on an upper layer formed on a protective film covering the first routing wiring in the lower layer, 1 routing wiring and the first routing wiring in the lower layer are connected to each other through the first contact hole formed in the protection film in the routing region.

The first routing wiring of the lower layer has a two-layer structure of a transparent conductive film formed on the insulating film and a metal film formed on the transparent conductive film, and the first routing wiring of the upper layer is formed on the protective film Layer structure of a metal film and a transparent conductive film covering the metal film.

In addition, each of the second routing wirings may be formed in a multi-layer structure formed in different layers.

The second routing wiring includes a second routing wiring in a lower layer formed in an insulating film and a second routing wiring in an upper layer formed in a protective film covering the second routing wiring in the lower layer, The routing wiring and the second routing wiring in the lower layer are connected to each other through the second contact hole formed in the protection film in the routing region.

The second routing wiring in the lower layer has a two-layer structure of a transparent conductive film formed on the insulating film and a metal film formed on the transparent conductive film, and the second routing wiring in the upper layer is formed on the protective film Layer structure of a metal film and a transparent conductive film covering the metal film.

The first routing wiring of the upper layer and the first routing wiring of the lower layer are connected to each other through the third contact hole formed in the protection film in the routing region adjacent to the pad region, .

The second routing wiring of the upper layer and the second routing wiring of the lower layer are connected to each other through the fourth contact hole formed in the protection film in the routing region adjacent to the pad region, .

According to the touch sensor integrated type display device according to the embodiment of the present invention, since the touch driving voltage can be supplied to both the touch driving electrodes at the same time, the touch driving voltage can be supplied to the touch driving electrodes without attenuation of the touch driving signal . Therefore, the effect of increasing the touch recognition precision can be obtained.

In addition, since the touch-driving routing wiring formed in the routing region is composed of the upper-layer touch-driving routing wiring and the lower-layer touch-driving routing wiring and they are connected to each other through the contact hole, The effect of greatly reducing the value can be obtained.

Since the touch sensing routing wiring formed in the routing region is composed of the upper touch sensing routing wiring and the lower layer touch sensing routing wiring and they are connected to each other through the contact hole CH2, An effect that the total resistance value of the resistor Rs is greatly reduced can be obtained.

Further, since the touch routing wiring of the upper layer is formed only to the lower routing region and the touch routing wiring of the upper layer is connected to the touch routing wiring of the lower layer through the contact hole in the lower routing region, the second insulating film is removed from the FPC pad region It is possible to solve the short circuit problem caused by the residues generated in the process of manufacturing the semiconductor device.

1 is a partially exploded perspective view schematically showing a touch sensor integrated type display device according to an embodiment of the present invention,
2 is a plan view schematically showing a touch sensor integrated type display device according to an embodiment of the present invention,
FIG. 3A is a plan view showing a region R1 of the touch-sensor-integrated display device shown in FIG. 2,
FIG. 3B is a cross-sectional view taken along line I-I 'of FIG. 3A,
4A is a plan view showing a region R2 of the touch-sensor-integrated display device shown in Fig. 2,
4B is a cross-sectional view taken along line II-II 'of FIG. 4A,
5A is a plan view showing a region R3 of the touch-sensor-integrated display device shown in Fig. 2,
FIG. 5B is a cross-sectional view taken along line III-III 'of FIG. 5A. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals refer to like elements throughout the specification.

First, a touch sensor integrated display device according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 is a partially exploded perspective view schematically showing a touch sensor integrated type display device according to an embodiment of the present invention, and FIG. 2 is a plan view schematically showing a touch sensor integrated type display device according to an embodiment of the present invention.

1, a touch sensor integrated display device according to an embodiment of the present invention includes a thin film transistor array (TFTA) formed with a liquid crystal layer (not shown) therebetween, a liquid crystal display panel (LCP).

The thin film transistor array TFTA includes a plurality of gate lines G1 and G2 formed on a first substrate SUB1 in a first direction (for example, x direction), a plurality of gate lines G1, The data lines D1 and D2 and the gate lines G1 and G2 and the data lines D1 and D2 which are formed to be parallel to each other in the second direction (for example, the y direction) (TFT) formed in a region where the gate lines G1 and G2, the data lines D1 and D2 intersect, the liquid crystal cells located in a region defined by the data lines DL and D2, And common electrodes (not shown) arranged to form an electric field with the plurality of pixel electrodes Px.

The color filter array CFA includes a black matrix and a color filter (not shown) formed on the second substrate SUB2. Polarizers POL1 and POL2 are attached to the outer surfaces of the first substrate SUB1 and the second substrate SUB2 of the liquid crystal display panel LCP and the polarizers POL1 and POL2 are attached to the outer surfaces of the first and second substrates SUB1 and SUB2 And an orientation film (not shown) for setting the pretilt angle of the liquid crystal is formed on the inner surface. A column spacer for maintaining a cell gap of the liquid crystal cell may be formed between the color filter array CFA and the thin film transistor array TFTA of the liquid crystal display panel LCP.

Meanwhile, the common electrodes are formed on the second substrate SUB2 in a vertical electric field driving method such as TN (Twisted Nematic) mode and VA (Vertical Alignment) mode, and in the IPS (In Plane Switching) mode and the FFS The pixel electrode Px is formed on the first substrate SUB1. In the following embodiments of the present invention, the horizontal electric field driving method will be described as an example.

Referring to FIG. 2, the touch sensor integrated type display device according to the embodiment of the present invention includes an active area AA and a bezel area BA.

In the active area AA, gate lines and data lines, liquid crystal cells, thin film transistors, pixel electrodes, and common electrodes, which are components for driving a display, are disposed.

The bezel area BA includes a routing wiring area RA and a flexible printed circuit board (FPCB) pad area FA. The routing wiring region RA includes gate lines and data links (not shown) for connecting the gate lines and the data lines formed in the active region AA to the gate driving circuit and the data driving circuit, respectively, (Not shown) to the touch sensing electrodes Rx1 to Rx5 and the touch driving electrodes Tx11 to Tx16, Tx21 to Tx26, Tx31 to Tx36, Tx41 to Tx46, Tx51 to Tx56 and Tx61 to Tx66, The routing wirings TW1a to TW6a, TW1b to TW6b (RW1 to RW5) are formed. In the FPCB pad area FA, flexible circuit boards F_TP1, F_TP2, F_RP1 connected to the touch pads and the touch pads are disposed.

The common electrode COM of the touch sensor integrated type display device according to the embodiment of the present invention includes a plurality of electrodes divided in a first direction (for example, x-axis direction) and a second direction (for example, Patterns (Tx11 to Tx16, Tx21 to Tx26, TX31 to Tx36, Tx41 to Tx46; Rx1 to Rx5). The plurality of electrode patterns are electrically connected to the touch sensing electrodes Rx1 to Rx5 and the touch sensing electrodes Tx11 to Tx16, Tx21 to Tx26, TX31 to Tx36, Tx41 to Tx46, TX51 to Tx56 and Tx61 to Tx66, .

More specifically, among the plurality of electrode patterns (Tx11 to Tx16, Tx21 to Tx26, Tx31 to Tx36, Tx41 to Tx46; Tx51 to Tx56, Tx61 to Tx66; Rx1 to Rx5) The electrode patterns of the first to sixth rows form the first to sixth touch driving electrode groups Tx11 to Tx14, Tx21 to Tx24, TX31 to Tx34, Tx41 to Tx44, Tx51 to Tx56, and Tx61 to Tx66 And the first to fifth column electrode patterns arranged in the y-axis direction constitute the first to fifth touch sensing electrodes Rx1 to Rx5.

Touch driving electrodes Tx12 to Tx62 are disposed between adjacent touch sensing electrodes Rx1 and Rx2 and touch driving electrodes Tx13 to Tx63 are disposed between adjacent touch sensing electrodes Rx2 and Rx3, Touch driving electrodes Tx14 to Tx64 are disposed between adjacent touch sensing electrodes Rx3 and Rx4 and touch driving electrodes Tx15 to Tx65 are disposed between adjacent touch sensing electrodes Rx4 and Rx5. The touch driving electrodes Tx11 to Tx61 are disposed outside the outermost touch sensing electrode Rx1 and the touch driving electrodes Tx16 to Tx66 are disposed outside the outermost touch sensing electrode Rx2.

The first touch driving electrodes, that is, the 1-1 to 1-3 touch driving electrodes Tx11 to Tx13, on the left half of the first touch driving electrode groups Tx11 to Tx16 in the first row, Tc12, and Tc13 extending from the first touch driving electrode lines BA1 to BA1, respectively, and the first touch driving electrodes, that is, the first to fourth touch driving electrode connecting lines Tc11, To 1-6 touch driving electrodes Tx14 to Tx16 are respectively connected to the first to fourth to sixth touch driving electrode connecting wirings Tc14 to Tc16 extending to the right bezel area BA2.

The 1-1 to 1-3 touch driving electrode connection wirings Tc11, Tc12, and Tc13 are arranged in parallel with each other, and the 1-4th to 1-6 touch driving electrode connection wirings Tc14, Tc15, and Tc16 ) Are also arranged in parallel with each other. The 1-1 to 1-3 touch driving electrode connection wirings Tc11, Tc12 and Tc13 are connected to the 1-4th to the 1-6 touch driving electrode connection wirings Tc14, Tc15, Tc16).

The 1-1 to 1-3 touch driving electrode connection wirings Tc11, Tc12 and Tc13 are connected to the left first touch driving wiring lines (left first bevel driving wiring lines) formed in the left bezel area BA1, TW1a, respectively. The first to fourth touch driving electrode connection wirings Tc14, Tc15 and Tc16 are connected to the right first bezel area BA2, that is, the right first touch driving wiring lines TW1b formed in the right routing area RA2, Respectively.

According to such a configuration, the first touch driving electrode group Tx11 to Tx16 in the first row is divided into left and right sides to form two channels, so that the left and right touch regions It is possible to simultaneously supply the touch driving signal through the right first touch driving routing lines TW1a and TW1b.

The second touch driving electrodes, that is, the second touching driving electrodes Tx21 to Tx23 of the second 1/2 touch driving electrodes, among the second touch driving electrode groups Tx21 to Tx26 of the second row, Second touch driving electrode connection lines Tc21, Tc22, and Tc23 extending to the first touch driving electrode lines BA1, To 2-6 touch driving electrodes Tx24 to Tx26 are connected to the 2-4th to the 6th to 6th touch driving electrode connecting wirings Tc24, Tc25 and Tc26 extending to the right bezel area BA2, respectively.

The second to eighth to tenth and tenth to tenth touch driving electrode connection wirings Tc21 to Tc23 are arranged parallel to each other and the second to fourth to sixth touch driving electrode connection wirings Tc24 to Tc26 ) Are also arranged in parallel with each other. The 2-1th to 2-3th touch driving electrode connection wirings Tc21, Tc22 and Tc23 are connected to the 2nd to 4th to 6th to 6th touch driving electrode connection wirings Tc24, Tc25, Tc26).

The 2-1 to 2-3 touch driving electrode connection wirings Tc21, Tc22 and Tc23 are connected to the left second bezel area BA1, that is, left second touch driving routing wirings TW2a, respectively. The 2-4th to the 6th to 6th touch driving electrode connection wirings Tc24, Tc25 and Tc26 are connected to the right second bezel area BA2, i.e., the right second touch driving wiring wirings TW2b formed in the right routing area RA2, Respectively.

According to such a configuration, the second touch driving electrode group Tx21 to Tx26 in the second row is divided into left and right sides to form two channels, so that the left and right touching electrode groups Tx21 to Tx26 arranged in the left and right routing regions RA1 and RA2 It is possible to supply the touch driving signal through the right second touch driving routing lines TW2a and TW2b at the same time.

The left third touch driving electrodes, that is, the third to the third touch driving electrodes Tx31 to Tx33, among the third touch driving electrode groups Tx31 to Tx36 in the third row, Third touch driving electrode connecting lines Tc31, Tc32, and Tc33 extending to the first touch driving electrode lines BA1, To 3-6 touch driving electrodes Tx34 to Tx36 are connected to third to fourth to sixth touch driving electrode connecting lines Tc34, Tc35 and Tc36 extending to the right bezel area BA2, respectively.

The third to the third touch driving electrode connection wirings Tc31, Tc32, and Tc33 are arranged in parallel with each other, and the third to fourth touch driving electrode connection wirings Tc34, Tc35, and Tc36 ) Are also arranged in parallel with each other. The third to the third touch driving electrode connection wirings Tc31, Tc32 and Tc33 are connected to the third to fourth to sixth touch driving electrode connection wirings Tc34, Tc35, Tc36).

The third to the third touch driving electrode connection wirings Tc31, Tc32 and Tc33 are connected to the left third bezel area BA1, that is, left third touch driving routing wirings TW3a, respectively. The third to fourth to sixth touch driving electrode connection wirings Tc34, Tc35 and Tc36 are connected to the right third bezel area BA2, i.e., the right third touch driving wiring wirings TW3b formed in the right routing area RA2, Respectively.

According to this configuration, the third touch-driving electrode group Tx31 to Tx36 in the third row is divided into left and right sides to form two channels, so that the left and right touch- The touch driving signal can be simultaneously supplied through the right third touch driving routing lines TW3a and TW3b.

The left fourth touch driving electrodes, that is, the fourth to fourth touch driving electrodes Tx41 to Tx43, among the fourth touch driving electrode groups Tx41 to Tx46 of the fourth row, Fourth touch driving electrode connection lines Tc41, Tc42, and Tc43 extending to the first touch driving electrode BA1 and the fourth touch driving electrodes connected to the right half, To 4-6 touch driving electrodes Tx44 to Tx46 are respectively connected to fourth to fourth to sixth touch driving electrode connecting wirings Tc44 to Tc46 extending to the right bezel area BA2.

The fourth to fourth touch driving electrode connection wirings Tc41, Tc42 and Tc43 are arranged in parallel with each other and the fourth to fourth to sixth touch driving electrode connection wirings Tc44, Tc45 and Tc46 ) Are also arranged in parallel with each other. The fourth to fourth touch driving electrode connection wirings Tc41, Tc42 and Tc43 are connected to the fourth to fourth to sixth touch driving electrode connection wirings Tc44, Tc45, Tc46).

The fourth to fourth touch driving electrode connection wirings Tc41, Tc42 and Tc43 are connected to the left fourth bezel driving line BA1, TW4a, respectively. The fourth to fourth to sixth touch driving electrode connection wirings Tc44, Tc45 and Tc46 are connected to the right fourth bezel area BA2, i.e., the right fourth touch driving wiring wirings TW4b formed in the right routing area RA2, Respectively.

According to this configuration, the fourth touch driving electrode group Tx41 to Tx46 in the fourth row is divided into left and right sides to form two channels, so that the left and right touch electrodes And can simultaneously supply the touch driving signal through the right fourth touch driving routing lines TW4a and TW4b.

The fifth touch driving electrodes, that is, the fifth to fifth touch driving electrodes Tx41 to Tx43 of the left half of the fifth touch driving electrode groups Tx51 to Tx56 in the fifth row are connected to the left bezel region Fifth to fifth touch driving electrode connection wirings Tc51, Tc52, and Tc53 extending to the right half of the first touch driving electrodes BA1, To 5-6 touch driving electrodes Tx54 to Tx56 are respectively connected to fifth to fourth to fifth touch driving electrode connecting wirings Tc54, Tc55 and Tc56 extending to the right bezel area BA2.

The fifth to tenth to tenth touch driving electrode connection wirings Tc51, Tc52 and Tc53 are arranged in parallel with each other, and the fifth to fourth to fifth touch driving electrode connection wirings Tc54, Tc55 and Tc56 ) Are also arranged in parallel with each other. The fifth to the fifth touch driving electrode connection wirings Tc51, Tc52 and Tc53 are connected to the fifth to fourth to fifth touch driving electrode connection wirings Tc54, Tc55, Tc56).

The fifth to the fifth touch driving electrode connection wirings Tc51, Tc52 and Tc53 are connected to the left fifth touch driving wiring wirings TW5a, respectively. The fifth touch driving electrode connecting lines Tc54, Tc55 and Tc56 are connected to the right fifth bezel driving line TW5b formed in the right bezel area BA2, i.e., the right routing area RA2, Respectively.

According to this structure, the fifth touch driving electrode group (Tx51 to Tx56) in the fifth row is divided into left and right sides to form two channels, so that the left and right touch electrodes And simultaneously supply the touch driving signal through the fifth right touch driving wiring lines TW5a and TW5b.

The sixth touch drive electrodes, that is, the sixth to tenth touch drive electrodes Tx61 to Tx63, which are the left half of the sixth touch drive electrode groups Tx61 to Tx66 in the sixth row, Driving electrode connecting lines Tc61, Tc62, and Tc63 extending to the first touch driving electrode line BA1 and the sixth touch driving electrodes, that is, the 6-4th touch driving electrode connecting lines Tc61, To 6-6 touch driving electrodes Tx64 to Tx66 are connected to the 6-4th to the 6-6th touch driving electrode connecting wirings Tc64, Tc65 and Tc66 extending to the right bezel area BA2, respectively.

The sixth through tenth to eighth touch driving electrode connection wirings Tc61, Tc62 and Tc63 are arranged in parallel with each other, and the sixth through fourth to sixth sixteenth touch driving electrode connection wirings Tc64, Tc65 and Tc66 ) Are also arranged in parallel with each other. The 6th to 6th to 6th touch driving electrode connection wirings Tc61, Tc62 and Tc63 are connected to the 6-4th to 6th to 6th touch driving electrode connection wirings Tc64, Tc65, Tc66).

The sixth to tenth touch driving electrode connection wirings Tc61, Tc62 and Tc63 are connected to the left side bezel area BA1, that is, left sixth touch driving routing wirings TW6a, respectively. The sixth to eighth to tenth to sixteenth touch driving electrode connection wirings Tc64, Tc65 and Tc66 are connected to the right side bezel area BA2, i.e., the right sixth touch driving wiring wirings TW5b formed in the right routing area RA2, Respectively.

According to this structure, the sixth touch driving electrode group (Tx61 to Tx66) in the fifth row is divided into left and right sides to form two channels, so that the left and right touch panel driving units (Rx1 and Rx2) And can simultaneously supply the touch driving signal through the right sixth touch driving routing lines TW6a and TW6b.

According to the touch sensor integrated type display device according to the embodiment of the present invention, the left first through sixth touch driving routing wirings TW1a through TW6a and the left first through sixth touch driving electrode connection wirings Tc11 through Tc13 Tc21 to Tc23, Tc31 to Tc33, Tc41 to Tc43, Tc51 to Tc53, Tc61 to Tc63, and the right first through sixth touch driving routing wirings TW1b to TW6b are connected to the right first through sixth touch driving electrodes The first to sixth touch driving electrode groups Tx11 to Tx16, Tx21 to Tx26, and Tx31 through the wirings Tc14 to Tc16, Tc24 to Tc26, Tc34 to Tc36, Tc44 to Tc46, Tc54 to Tc56, To Tx36, Tx41 to Tx46, Tx51 to Tx56, and Tx61 to Tx66), it is possible to supply the touch driving voltage to the touch driving electrodes without attenuation of the touch driving signal. Therefore, the effect of increasing the touch recognition precision can be obtained.

Next, referring to FIGS. 3A to 5B, the touch driving routing wiring and the touch sensing routing wiring formed in the regions R1, R2, and R3 of the touch sensor integrated type display device shown in FIG. 2 will be described. 3A is a plan view showing a region R1 of the integrated touch-sensor display device shown in FIG. 2, FIG. 3B is a cross-sectional view taken along line I-I 'of FIG. 3A, 4A is a cross-sectional view taken along line II-II 'of FIG. 4A, FIG. 5A is a plan view showing a region R3 of the touch-sensor-integrated display device shown in FIG. 2, 5B is a cross-sectional view taken along line III-III 'of FIG. 5A.

In the following description, for simplicity of description, the names are simplified and denoted by a touch driving electrode, a touch driving electrode connecting line, a touch driving routing wiring, a touch sensing electrode, a touch sensing electrode connecting line, and a touch sensing routing wiring.

3A and 3B, the relationship between the touch driving electrode Tx16 and the touch driving electrode connecting wiring Tc16 and the connecting relationship between the touch driving electrode connecting wiring Tc16 and the touch driving wiring TW1b Will be described.

A first signal link line SL1 is formed on the substrate SUB in the region R1 to connect a gate line or a data line to a gate driving circuit or a data driving circuit (not shown). The first signal link line SL1 is sequentially covered by the first insulating film INS1, the first protective film PAS1, and the second insulating film INS2. A transparent conductive film Tc16a made of a transparent conductive material and a metal film Tc16b made of a metal material are sequentially laminated on the second insulation film INS2 to form a touch driving electrode connection wiring Tc16 having a two- And extends from the active area AA to the right routing area RA2. The two-layered touch-driving electrode connection wiring lines Tc16a and Tc16b extending to the routing region RA3 constitute the lower layer touch-driving routing wiring lines TW1b3 and TW1b4.

A second protective film PAS2 is laminated on the second insulating film INS2 on which the touch driving electrode connecting wiring Tc16 is formed and a touch driving electrode Tx16 made of a transparent conductive material is formed on the active area AA on the second protective film PAS2 And the upper layer of the touch-driving routing lines TW1b3 and TW1b4 having a two-layer structure composed of a metal layer and a transparent conductive layer are formed in the routing region RA3.

The touch driving electrode Tx16 is connected to the touch driving electrode connecting wiring Tc16 through the first contact hole CH1 formed in the second protective film PAS2. The upper layer of the touch driving routing lines TW1b3 and TW1b4 are connected to the lower layer of the touch driving routing lines TW1b1 and TW1b2 through second contact holes formed in the second protective layer PAS2.

The touch driving routing wiring formed in the routing region RA2 is composed of the upper layer of the touch driving routing wiring lines TW1b3 and TW1b4 and the lower layer of the touch driving routing wiring lines TW1b3 and TW1b4, Holes CH2, so that the parallel connection structure can achieve the effect that the total resistance value of the touch-driving routing wiring is greatly reduced.

4A and 4B, the connection relationship between the touch sensing electrode Rx5 and the touch sensing electrode connection wiring Rc5 and the connection between the touch sensing electrode connection wiring Rc5 and the touch sensing routing wiring RW5 The relationship will be described.

A second signal link line SL2 is formed on the first insulating film INS1 in the region R2 to connect the data line or the gate line to the data driving circuit or the gate driving circuit (not shown). The second signal link line SL2 is sequentially covered by the first protective film PAS1 and the second insulating film INS2.

A transparent conductive film RW5a made of a transparent conductive material is formed on the lower routing region RA3 on the second insulating film INS2 and a metal layer RW5b formed on the transparent conductive film RW5a, Sensing routing wirings RW5a and RW5b are formed. On the second protective film PAS2 covering the touch sensing routing wirings RW5a and RW5b of the lower layer, a touch sensing electrode connection wiring Rc5 made of a metal layer is formed. The touch sensing electrode connection wiring Rc5 extends from the active area AA to the lower routing area RA3. The touch-driving electrode connection wiring Rc5 constitutes an upper-layer touch sensing routing wiring RW5c.

Meanwhile, the touch sensing electrode Rx5 may extend to the lower routing region RA3 to cover the touch sensing electrode connection wiring Rc5. In this case, the extended portion RW5d of the touch sensing electrode Rx5 and the extended portion RW5c of the touch driving electrode connection wiring Rc5 constitute upper touch sensing routing wirings RW5c and RW5d.

The touch sensing routing wirings RW5c and RW5d of the upper layer are connected to the touch sensing routing wirings RW5a and RW5b of the lower layer through the third contact holes formed in the second protective film PAS2.

According to the above-described configuration, the touch sensing routing wiring formed in the routing area RA3 is composed of the upper touch sensing routing wiring TRW5c, RW5d and the lower layer touch sensing routing wiring RW5a, RW5b, Hole CH2, so that the parallel connection structure can achieve the effect that the total resistance value of the touch sensing routing wiring is greatly reduced.

Next, the structure of the lower routing region RA3, the touch sensing electrode Rx5, and the FPC pad region FA will be described with reference to FIGS. 5A and 5B. 5A and 5B, the configuration of the flexible circuit board F_RP is omitted for the sake of simplicity.

The second insulating film INS2 is removed from the FPC pad region FA between the lower routing region RA3 and the FPC pad region FA in the region R3 to form a step. Touch sensing routing wirings RW5a and RW5b of the lower layer are formed on the second insulating film INS2 of the lower routing region RA3 and the first passivation film PAS1 of the FPC pad region FA.

The second protective film PAS2 is formed so as to cover the touch sensing routing wirings RW5a and RW5b of the lower layer. Touch sensing routing wirings RW5c and RW5d in the upper layer are formed in the lower routing region RA3 on the second protective film PAS2. The touch sensing routing wirings RW5c and RW5d in the upper layer are connected to the touch sensing routing wirings RW5a and RW5b in the lower layer through the fourth contact holes CH4 formed in the second protective film PAS2.

The touch sensing routing wiring lines RW5c and RW5d of the upper layer are formed only to the lower routing region RA3 and the upper touch sensing routing wiring lines RA4 and R5b are formed in the lower routing region RA3 through the fourth contact holes CH4. (RW5c, RW5d) and the touch sensing routing wiring (RW5a, RW5b) of the lower layer are connected to each other, it is possible to solve the short circuit problem caused by the residues generated when the second insulating film The effect can be obtained.

Although Figs. 5A and 5B and related descriptions only refer to the region including one flexible circuit board F_RP, this description also applies to the region including the other two flexible circuit boards F_TP1 and F_TP2. Therefore, the description of the area including the other two flexible circuit boards F_TP1 and F_TP2 is omitted in order to avoid duplication of description.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. For example, the touch-operated electrode and its associated components may be modified to function as a touch-sensing electrode and its associated component, while the touch-sensing electrode and its associated component may function as a touch- can be changed. In addition, although the common electrode is formed on the second protective film in the embodiment of the present invention, the common electrode may be formed on the first protective film. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the invention but should be defined by the claims.

AA: active area BA: bezel area
FA: FPC pad area F_TP1, F_TP2, F_RP1: Flexible circuit board
INS1 and INS2: insulating films PAS1 and PAS2:
SL1, SL2: signal link line RA: routing area
Tx11 to Tx16, Tx21 to Tx26, Tx31 to Tx36, Tx41 to Tx46, Tx51 to Tx56, Tx61 to Tx66:
Tc11 to Tc13, Tc21 to Tc23, Tc31 to Tc33, Tc41 to Tc43, Tc51 to Tc53, Tc61 to Tc63:
Tc14 to Tc16, Tc24 to Tc26, Tc34 to Tc36, Tc44 to Tc46, Tc54 to Tc56, Tc64 to Tc66:
TW1a to TW6a: left first to sixth touch-driving routing wiring
TW1b to TW6b: right side first to sixth touch-driving routing wiring
Rx1 to Rx5: first to fifth touch sensing electrodes
Rc1 to Rc5: first to fifth touch sensing electrode connecting wirings
RW1 to RW5: first to fifth touch sensing routing wirings

Claims (8)

1. A touch sensor integrated display device including an active area, a routing area, and a pad area,
A plurality of first electrode connection wirings disposed in the active area and connected to the plurality of first electrodes arranged in the first direction and extending to the routing area;
And a plurality of second electrodes connected to the plurality of second electrode wirings disposed in the active area and arranged in the direction crossing the first direction and extending to the plurality of second electrode wirings, Wirings;
A plurality of first routing wirings formed in the routing region and connected to the extensions of the plurality of first connection wirings, respectively; And
A plurality of second routing interconnections formed in the routing region and connected to the extensions of the plurality of second interconnect interconnections, respectively,
Wherein each of the first routing wirings is formed in a multi-layer structure formed on different layers.
The method according to claim 1,
Wherein the first routing wiring includes a first routing wiring in a lower layer formed in an insulating film and an upper routing wiring in an upper layer formed on a protective film covering the first routing wiring in the lower layer, And the first routing wiring in the lower layer are connected to each other through the first contact hole formed in the protection film in the routing region.
3. The method of claim 2,
The first routing wiring of the lower layer has a two-layer structure of a transparent conductive film formed on the insulating film and a metal film formed on the transparent conductive film,
Wherein the first routing wiring in the upper layer has a two-layer structure of a metal film formed on the protective film and a transparent conductive film covering the metal film.
3. The method of claim 2,
And each of the second routing wirings is formed in a multi-layer structure formed on different layers.
5. The method of claim 4,
Wherein the second routing wiring includes a second routing wiring of a lower layer formed on an insulating film and an upper second wiring wiring formed on a protective film covering the second routing wiring of the lower layer, And the second routing wiring of the lower layer are connected to each other through the second contact hole formed in the protection film in the routing region.
6. The method of claim 5,
The second routing wiring of the lower layer has a two-layer structure of a transparent conductive film formed on the insulating film and a metal film formed on the transparent conductive film,
Wherein the second routing wiring of the upper layer has a two-layer structure of a metal film formed on the protective film and a transparent conductive film covering the metal film.
3. The method of claim 2,
The first routing wiring of the upper layer and the first routing wiring of the lower layer are connected to each other through the third contact hole formed in the protective film in the routing region adjacent to the pad region And the touch sensor integrated type display device.
6. The method of claim 5,
The second routing interconnection in the upper layer and the second routing interconnection in the lower layer are connected to each other through the fourth contact hole formed in the protective film in the routing region adjacent to the pad region And the touch sensor integrated type display device.

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