CN113608631B - Touch control device - Google Patents

Abstract

A touch device includes a substrate, a first signal line, a second signal line, a third signal line and a fourth signal line. The substrate has a sensing area and a non-sensing area. The first signal line and the second signal line are located in the non-sensing area and extend to the sensing area. The third signal line is located in the non-sensing area and adjacent to the first signal line, and the third signal line has at least a first mesh line area. The fourth signal line is located in the non-sensing area and adjacent to the second signal line, and the fourth signal line has at least a second mesh line area.

Description

touch device

Technical field

The present invention relates to an electronic device, and in particular to a touch device.

Background technique

In touch devices, ground lines are usually provided at the junction or edge of different signal lines to reduce mutual interference between signals and/or reduce the influence of external factors (such as the environment or other electronic components). However, when the touch device is powered on, there may be a corresponding potential difference between the ground line and the signal line, and in a state of high temperature or high humidity, the signal line is easily affected by moisture (such as in the environment). Moisture, corrosion, oxidation and/or reduced conductivity caused by moisture or human sweat when using touch devices). Therefore, the yield, quality or service life of the touch device may be affected.

In recent years, coupled with the design trend of narrow borders, the above-mentioned impact may be more serious.

Contents of the invention

The present invention provides a touch device, which can have better yield, quality or service life.

The touch device of the present invention includes a substrate, a first signal line, a second signal line, a third signal line and a fourth signal line, wherein the substrate has a sensing area and a non-sensing area. The first signal line and the second signal line are located in the non-sensing area and extend to the sensing area. The third signal line is located in the non-sensing area and adjacent to the first signal line, and the third signal line has at least a first mesh line area. The fourth signal line is located in the non-sensing area and adjacent to the second signal line, and the fourth signal line has at least a second mesh line area.

Based on the above, the present invention can reduce the risk of damage or damage to the first signal line and the second signal line (such as: line moisture, line corrosion, line oxidation and/or reduced conductivity) through the third signal line and the fourth signal line. possible. In this way, the yield, quality or service life of the touch device can be improved.

Description of the drawings

FIG. 1 is a schematic top view of a touch device according to a first embodiment of the present invention.

FIG. 2 is a partial top view of a touch device according to a second embodiment of the present invention.

FIG. 3 is a partial top view of a touch device according to a third embodiment of the present invention.

FIG. 4 is a partial top view of a touch device according to a fourth embodiment of the present invention.

FIG. 5 is a signal timing diagram of the first signal line and the third signal line according to an embodiment of the present invention.

FIG. 6 is a signal timing diagram of the second signal line and the fourth signal line according to an embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view of a touch device according to a fifth embodiment of the present invention.

FIG. 8 is a schematic top view of the second substrate according to an embodiment of the present invention.

FIG. 9 is a partial top view of the relationship between the first signal line, the third signal line and the polarizer in an embodiment of the present invention.

FIG. 10 is a partial top view of the relationship between the first signal line, the third signal line and the polarizer in yet another embodiment of the present invention.

FIG. 11 is a partial top view of the relationship between the first signal line, the third signal line and the polarizer in another embodiment of the present invention.

FIG. 12 is a partial top view of the relationship between the first signal line, the third signal line and the polarizer in yet another embodiment of the present invention.

FIG. 13 is a schematic cross-sectional view of a touch device according to a sixth embodiment of the present invention.

Explanation of reference symbols:

10, 20, 30, 40, 50, 60: touch device

100: substrate, first substrate

101: Sensing area

102: Non-sensing area

103: Fan-out area

104: First peripheral area

105: Pad area

110: First signal line

120: Second signal line

130: Third signal line

130a: First mesh line area

140: The fourth signal line

140a: Second mesh line area

150: Ground wire

152: First ground wire

154: Second ground wire

160: Drive components

170: Polarizer

180: Color filter

190: Liquid crystal layer

200: Second substrate

210: Protective layer

310: Third substrate

d1: first direction

d2: second direction

DL: data line

gl: adapter cable

GL: scan line

OP1: First opening

OP2: Second opening

R1, R2: area

SPX: pixel structure

S110, S110(1)~S110(n): first signal

S120, S120(1)~S120(m): second signal

S130, S130(1), S130(2): third signal

S140, S140(1), S140(2): fourth signal

S150: Ground signal

W1, W2, W3, W4: Width

Detailed ways

In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. Throughout this specification, the same reference numbers refer to the same elements. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to a physical and/or electrical connection. Furthermore, “electrical connection” or “coupling” may mean the presence of other components between two components.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not Subject to these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," "layer" or "section" discussed below could be termed a second element, component, region, layer or section without departing from the teachings herein.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms including "at least one" unless the content clearly dictates otherwise. "Or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will also be understood that when used in this specification, the terms "comprises" and/or "includes" designate the presence of stated features, regions, integers, steps, operations, elements and/or components but do not exclude one or more The presence or addition of other features, regions, steps, operations, elements, parts and/or combinations thereof.

Additionally, relative terms, such as "lower" or "bottom" and "upper" or "top" may be used herein to describe one element's relationship to another element as illustrated in the Figures. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation illustrated in the figures. For example, if the device in one of the figures is turned over, elements described as "lower" than other elements would then be oriented "upper" than the other elements. Thus, the exemplary term "lower" may include both "lower" and "upper" orientations, depending on the particular orientation of the drawing. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "lower" may include both upper and lower orientations.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be construed to have meanings consistent with their meanings in the context of the relevant technology and the present invention, and are not to be construed as idealistic or excessive Formal meaning, unless expressly defined as such herein.

Example embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments. Accordingly, variations in the shape of the illustrations, for example as a result of manufacturing techniques and/or tolerances, are to be expected. Thus, embodiments described herein should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, regions shown or described as flat may typically have rough and/or non-linear characteristics. Additionally, the acute angles shown may be rounded. Accordingly, the regions shown in the figures are schematic in nature and their shapes are not intended to show the precise shapes of the regions and are not intended to limit the scope of the claims.

FIG. 1 is a schematic top view of a touch device according to an embodiment of the present invention.

Referring to FIG. 1 , the touch device 10 includes a substrate 100 , a driving element 160 , a first signal line 110 , a second signal line 120 , a third signal line 130 and a fourth signal line 140 . The substrate 100 includes a sensing area 101 and a non-sensing area 102 outside the sensing area 101 . The number of the first signal line 110 , the second signal line 120 , the third signal line 130 and/or the fourth signal line 140 can be adjusted according to the design requirements, and is not limited in the present invention.

The non-sensing area 102 includes a fan-out area 103 , a first peripheral area 104 and a pad area 105 . The pad area 102a is, for example, located on one side of the non-sensing area 102 (eg, the lower side shown in FIG. 1 ), but the invention is not limited thereto. The fan-out area 103 is located between the sensing area 101 and the driving element 160 . The first peripheral area 104 and the fan-out area 103 are respectively located on opposite sides of the sensing area 101 .

In this embodiment, the driving element 160 can be disposed in the pad area 105, and the corresponding input/output interface in the driving element 160 can be electrically connected to the corresponding input/output interface in the pad area 105. pad (Input/output pad), but the invention is not limited thereto. In one embodiment, the driving element 160 can be configured on a circuit board (such as a flexible printed circuit board (FPC board)), and the corresponding input/output interface in the driving element 160 can be configured through the corresponding input/output interface in the circuit board. The circuits are electrically connected to the corresponding input/output pads in the pad area 105 . That is to say, from the perspective of signal connection or electrical connection, the fan-out area 103 can be located between the sensing area 101 and the driving element 160 (or the area where it is configured, such as the pad area 105, but not limited to) between. In one embodiment, the driving element 160 may include a Touch and Display Driver Integration (TDDI) chip or other suitable driving chips, but the invention is not limited thereto.

The first signal line 110 is located in the non-sensing area 102 and extends to the sensing area 101 . For example, one end of the first signal line 110 can be electrically connected to the corresponding input/output pad in the pad area 105, and then can extend from the left or right side of the sensing area 101 via the fan-out area 103. to sensing area 101.

The second signal line 120 is located in the non-sensing area 102 and extends to the sensing area 101 . For example, one end of the second signal line 120 can be electrically connected to the corresponding input/output pad in the pad area 105, and then can extend from the lower side of the sensing area 101 to the sensing area via the fan-out area 103. District 101.

One of the first signal line 110 and the second signal line 120 may be a touch driving signal line (Tx), and the other of the first signal line 110 and the second signal line 120 may be a touch sensing line. Signal line (Rx). For example, the first signal line 110 is a touch driving signal line, and the second signal line 120 is a touch sensing signal line, but the invention is not limited thereto.

The third signal line 130 is located in the non-sensing area 102 and adjacent to the first signal line 110 . The third signal line 130 may be away from the sensing area 101 . That is to say, the third signal line 130 may not be located in the sensing area 101. One end of the third signal line 130 can be electrically connected to the corresponding input/output pad in the pad area 105 , and then can be extended to the non-sensing area 102 below the sensing area 101 via the fan-out area 103 . In one embodiment, the third signal line 130 may further extend to the non-sensing area 102 on the left or right side of the sensing area 101, but the invention is not limited thereto.

The fourth signal line 140 is located in the non-sensing area 102 and adjacent to the second signal line 120 . The fourth signal line 140 may be away from the sensing area 101 . That is to say, the fourth signal line 140 may not be located in the sensing area 101. One end of the fourth signal line 140 can be electrically connected to the corresponding input/output pad in the pad area 105 , and then can be extended to the non-sensing area 102 below the sensing area 101 via the fan-out area 103 . In one embodiment, the fourth signal line 140 may further extend to the non-sensing area 102 on the left or right side of the sensing area 101, but the invention is not limited thereto.

The first signal line 110 , the second signal line 120 , the third signal line 130 and/or the fourth signal line 140 are suitable for transmitting electronic signals to the driving element 160 or receiving electronic signals from the driving element 160 . That is to say, the first signal line 110 , the second signal line 120 , the third signal line 130 and the fourth signal line 140 are basically not grounded. In one embodiment, the third signal line 130 and/or the fourth signal line 140 are suitable for transmitting or receiving dummy signals, but the invention is not limited thereto. The virtual signal of the front finger may be a signal unrelated to touch driving or touch sensing, but the present invention does not rule out the possibility of other signals.

The third signal line 130 is at least located between the edge of the substrate 100 and the first signal line 110, and the third signal line 130 is not substantially grounded. In this way, the possibility of damage or damage to the first signal line 110 (such as line moisture, line corrosion, line oxidation and/or reduced conductivity) can be reduced.

The fourth signal line 140 is at least between the edge of the substrate 100 and the second signal line 120 , and the fourth signal line 140 is not substantially grounded. In this way, the possibility of damage or damage to the second signal line 120 (such as line moisture, line corrosion, line oxidation and/or reduced conductivity) can be reduced.

In this embodiment, the touch device 10 may further include a ground wire 150 . The ground wire 150 may be electrically connected to the ground terminal. For example, at least one end of the ground wire 150 can be electrically connected to a corresponding ground pad in the pad area 105; or, it can be further electrically connected to a corresponding ground interface in the driving element 160. In this embodiment, the ground wire 150 may include a first ground wire 152 or a second ground wire 154 . The first ground line 152 may be disposed substantially around the sensing area 101 .

In this embodiment, the third signal line 130 may be located between the ground line 150 and the first signal line 110 . For example, the third signal line 130 may be located between the first ground line 152 and the first signal line 110 , and/or the third signal line 130 may be located between the second ground line 154 and the first signal line 110 .

In one embodiment, since the third signal line 130 is located between the ground line 150 and the first signal line 110, and the third signal line 130 is basically not grounded, damage or damage to the first signal line 110 (such as : Possibility of circuit moisture, circuit corrosion, circuit oxidation and/or reduced conductivity). In one embodiment, if (but not limited to) the distance between the first signal line 110 and the first ground line 152 is less than or approximately equal to 1 millimeter (millimeter; mm), the distance between the first signal line 110 and the first ground line 152 can also be The third signal line 130 is connected to the ground line 150 to reduce damage or damage to the first signal line 110 .

In one embodiment, there may be basically no other signal lines or ground lines between the third signal line 130 and the first signal line 110 closest thereto, but the invention is not limited thereto.

In this embodiment, the fourth signal line 140 may be located between the ground line 150 and the second signal line 120 . For example, the fourth signal line 140 may be located between the second ground line 154 and the second signal line 120 .

In one embodiment, since the fourth signal line 140 is located between the ground line 150 and the second signal line 120, and the fourth signal line 140 is basically not grounded, damage or damage to the second signal line 120 (such as : Possibility of circuit moisture, circuit corrosion, circuit oxidation and/or reduced conductivity). In one embodiment, if (but not limited to) the distance between the second signal line 120 and the second signal line 120 is less than or approximately equal to 1 millimeter, then a pass between the second signal line 120 and the ground line 150 can also be used. The fourth signal line 140 between them is used to reduce damage or damage to the second signal line 120 .

In one embodiment, there may be basically no other signal lines or ground lines between the fourth signal line 140 and the second signal line 120 closest to it, but the invention is not limited thereto.

FIG. 2 is a partial top view of a touch device according to a second embodiment of the present invention. The touch device 20 of this embodiment is similar to the touch device 10 of the first embodiment. Similar components are denoted by the same reference numerals and have similar functions, materials or formation methods, and descriptions thereof are omitted. For example, FIG. 2 may be an enlarged top view of the region R1 similar to that shown in FIG. 1 .

Referring to FIG. 2, in the fan-out area 103, a part of the third signal line 130 may have at least one first mesh line area 130a. The conductive pattern of the first mesh line area 130a includes a plurality of first openings OP1 separated from each other. The part of the third signal line 130 having the plurality of first openings OP1 may be called a first mesh line. That is, the third signal line 130 may include the first mesh line. In this embodiment, a plurality of first openings OP1 that are separated from each other may be arranged in an array, but the invention is not limited thereto.

In one embodiment, the first mesh line region 130a can increase its surface charge distribution area, and/or may reduce the possibility of tip discharge or tip charge dissociation. In this way, the possibility of the first signal line 110 being damaged or damaged can also be reduced.

In this embodiment, the width W3 of the first mesh line area 130a of the third signal line 130 is greater than twice the width W1 of the first signal line 110. The aforementioned width W1 of the first signal line 110 refers to the line width of one first signal line 110 plus the line distance between two adjacent first signal lines 110 . In this way, the distribution area of surface charges can also be increased, and/or the possibility of tip discharge or tip charge dissociation can be reduced, and the possibility of damage or damage to the first signal line 110 can also be reduced.

Referring to FIG. 2, in the fan-out area 103, a part of the fourth signal line 140 may have at least a second mesh line area 140a. The conductive pattern of the second mesh line area 140a includes a plurality of second openings OP2 separated from each other. The portion of the fourth signal line 140 having the plurality of second openings OP2 may be called a second mesh line. That is, the fourth signal line 140 may include a second mesh line. In this embodiment, a plurality of second openings OP2 that are separated from each other may be arranged in an array, but the invention is not limited thereto.

In one embodiment, the second mesh line region 140a can increase the distribution area of its surface charge, and/or may reduce the possibility of tip discharge or tip charge dissociation. In this way, the possibility of the second signal line 120 being damaged or damaged can also be reduced.

In this embodiment, the width W4 of the second mesh line area 140a of the fourth signal line 140 is greater than twice the width W2 of the second signal line 120. The aforementioned width W2 of the second signal line 120 refers to the line width of one second signal line 120 plus the line distance between two adjacent second signal lines 120 . In this way, the distribution area of surface charges can also be increased, and/or the possibility of tip discharge or tip charge dissociation can be reduced, and the possibility of damage or damage to the second signal line 120 can also be reduced.

Please refer to FIG. 2 . In this embodiment, the first ground line 152 or the second ground line 154 may include corresponding mesh lines, but the invention is not limited thereto.

It is worth noting that FIG. 2 may only be an exemplary illustration of this embodiment. The present invention does not limit that the third signal line 130 , the fourth signal line 140 , the first ground line 152 and the second ground line 154 all need to include corresponding of mesh lines.

FIG. 3 is a partial top view of a touch device according to a third embodiment of the present invention. The touch device 30 of this embodiment is similar to the touch device 10 of the first embodiment or the touch device 20 of the second embodiment. Similar components are denoted by the same reference numerals and have similar functions, materials or formations. method, and omit description. For example, FIG. 3 may be an enlarged top view schematic diagram similar to the region R1 shown in FIG. 1 .

Referring to FIG. 3 , in this embodiment, the first ground line 152 or the second ground line 154 may be a single line.

FIG. 4 is a partial top view of a touch device according to a fourth embodiment of the present invention. The touch device 40 of this embodiment is similar to the touch device 10 of the first embodiment or the touch device 20 of the second embodiment. Similar components are denoted by the same reference numerals and have similar functions, materials or formations. method, and omit description. For example, FIG. 3 may be an enlarged top view schematic diagram similar to the region R1 shown in FIG. 1 .

Referring to FIG. 4 , the area shown in this embodiment may not have a ground wire (eg, a ground wire that is the same as or similar to the ground wire 150 ).

FIG. 5 is a signal timing diagram of the first signal line and the third signal line according to an embodiment of the present invention. Figure 5 schematically shows n first signals S110 (e.g., represented by S110(1)-S110(n)) and two third signals S130 (e.g., represented by S130(1) and S130(2)). signal timing diagram, but the present invention is not limited to this. That is to say, the number and order of the first signal S110 and the third signal S130 can be adjusted according to actual needs. In addition, FIG. 5 may be a signal timing diagram of a signal transmitted by a first signal line and a signal transmitted by a third signal line in any embodiment (such as the foregoing embodiment or the embodiment described below).

Please refer to FIGS. 1 and 5 , the first signal line 110 is suitable for transmitting (such as transmitting or receiving) the first signal S110 , the third signal line 130 is suitable for transmitting (such as transmitting or receiving) the third signal S130 , and the third signal line 130 is suitable for transmitting (such as transmitting or receiving) the third signal S130 . The timing of the first signal S110 and the timing of the third signal S130 do not substantially overlap. For example, the first signal S110 and the third signal S130 may have the same or similar amplitude, the same or similar waveform, the same or similar frequency, the same or similar phase, and/or the same or similar wavewidth; the difference is that : The time interval in which the first signal S110 has a pulse potential does not substantially overlap with the time interval in which the third signal S130 has a pulse potential.

In one embodiment, the first signal S110 and the third signal S130 are basically of the same or similar type. Therefore, the driving element 160 can process the first signal S110 and the third signal S130 through the same or similar rules; the difference is that when calculating the touch coordinates, the information transmitted or represented by the third signal S130 can be ignored or ignored. . In this way, the complexity of the driving element 160 can be reduced.

FIG. 6 is a signal timing diagram of the second signal line and the fourth signal line according to an embodiment of the present invention. Figure 6 schematically shows m second signals S120 (e.g., represented by S120(1)-S120(m)) and two fourth signals S140 (e.g., represented by S140(1) and S140(2)). signal timing diagram, but the present invention is not limited to this. That is to say, the number and order of the second signal S120 and the fourth signal S140 can be adjusted according to actual needs. In addition, FIG. 6 may be a signal timing diagram of the signal transmitted by the second signal line and the signal transmitted by the fourth signal line in any embodiment (such as the foregoing embodiment or the later-described embodiment).

Please refer to FIG. 1 and FIG. 6 , the second signal line 120 is suitable for transmitting (such as transmitting or receiving) the second signal S120, the fourth signal line 140 is suitable for transmitting (such as transmitting or receiving) the fourth signal S140, and the fourth signal line 140 is suitable for transmitting (such as transmitting or receiving) the fourth signal S140. The timing of the second signal S120 and the timing of the fourth signal S140 basically do not overlap. For example, the second signal S120 and the fourth signal S140 may have the same or similar amplitude, the same or similar waveform, the same or similar frequency, the same or similar phase, and/or the same or similar wavewidth; and: The time interval in which the second signal S120 has a pulse potential does not substantially overlap with the time interval in which the fourth signal S140 has a pulse potential.

In one embodiment, the second signal S120 and the fourth signal S140 are basically of the same or similar type. Therefore, the driving element 160 can process the second signal S120 and the fourth signal S140 through the same or similar rules; the difference is that when calculating the touch coordinates, the information transmitted or represented by the fourth signal S140 can be ignored or ignored. . In this way, the complexity of the driving element 160 can be reduced.

FIG. 7 is a schematic cross-sectional view of a touch device according to a fifth embodiment of the present invention.

Referring to FIG. 7 , the touch device 50 may further include a second substrate 200 , a liquid crystal layer 190 , a color filter 180 , a polarizer 170 and a protective layer 210 . The liquid crystal layer 190 and the color filter 180 may be located between the second substrate 200 and the first substrate 100 . The polarizer 170 and the protective layer 210 may be located on the first substrate 100 . The polarizer 170 at least overlaps the first signal line 110 and the third signal line 130. The aforementioned "overlap" includes "complete overlap" and "partial overlap". It is worth noting that in FIG. 7 or similar drawings, the color filter 180 may be schematically shown. For example, the color filter 180 may have corresponding different colors (such as red, green or blue) in different areas. It is worth noting that in FIG. 7 or similar drawings, the orientation of the liquid crystal layer 190 may be schematically shown.

In this embodiment, the first signal line 110 and the third signal line 130 may be located between the polarizer 170 and the first substrate 100, but the invention is not limited thereto.

In one embodiment, the first substrate 100 and the color filter 180 located thereon may be called a color filter substrate (CF substrate), but the invention is not limited thereto. In one embodiment, the first signal line 110 , the second signal line 120 , the third signal line 130 and the fourth signal line 140 may be formed on the first color filter substrate as a color filter substrate by plating and patterning. on the substrate 100, but the invention is not limited thereto.

In one embodiment, the second substrate 200 may include a substrate (such as glass, polymer or other suitable substrate) and a film layer (such as a corresponding insulating layer, conductive layer and/or semiconductor layer) located on the substrate. layer). The display area (not directly shown) of the second substrate 200 may overlap the sensing area 101 of the first substrate 100 (shown in FIG. 1 ). The display area of the second substrate 200 may have corresponding driving elements (such as active elements that can drive the liquid crystal to deflect and/or corresponding electrodes; or further include corresponding capacitors). The aforementioned "overlap" may include "complete overlap" and "partial overlap".

In one embodiment, the second substrate 200 may be called an array substrate, but the invention is not limited thereto.

In one embodiment, the touch device 50 may include or be called an on-cell Touch Panel (OTP Panel), but the invention is not limited thereto.

FIG. 8 is a schematic top view of the second substrate according to an embodiment of the present invention.

Referring to FIG. 8 , the second substrate 200 may include a plurality of data lines DL, a plurality of scan lines GL, a plurality of transfer lines gl and a plurality of pixel structures SPX. Wherein, a plurality of data lines DL are provided on the pixel array substrate 200 and arranged in the first direction d1, a plurality of scan lines GL are provided on the pixel array substrate 200 and arranged in the second direction d2, and the first direction d1 and The second direction d2 intersects (for example, but not limited to: vertical). The plurality of pixel structures SPX are electrically connected to the plurality of data lines DL and the plurality of gate lines GL. A plurality of transfer lines gl are disposed on the pixel array substrate 200 and are arranged in the first direction d1. The plurality of transfer lines gl are electrically connected to the plurality of scan lines GL. In this way, the wiring on the left and right sides of the touch device 10c can be reduced through the adapter cable gl, thereby realizing a touch display device with a narrow frame.

FIG. 9 is a partial top view of the relationship between the first signal line, the third signal line and the polarizer in an embodiment of the present invention. For example, FIG. 9 may be an enlarged top view of the region R2 similar to that shown in FIG. 7 .

Please refer to FIG. 9 . In the area shown in FIG. 9 (such as the left or right side of the sensing area 101 ), the polarizer 170 can completely overlap the first signal line 110 and partially overlap the third signal line 130 . In addition, if the first ground line 152 is provided, the polarizer 170 does not need to overlap the first ground line 152 .

FIG. 10 is a partial top view of the relationship between the first signal line, the third signal line and the polarizer in yet another embodiment of the present invention. For example, FIG. 10 may be an enlarged top view schematic diagram similar to the region R2 shown in FIG. 7 .

Please refer to FIG. 10 . In the area shown in FIG. 10 (such as the left or right side of the sensing area 101 ), the polarizer 170 can completely overlap the first signal line 110 and partially overlap the third signal line 130 .

FIG. 11 is a partial top view of the relationship between the first signal line, the third signal line and the polarizer in another embodiment of the present invention. For example, FIG. 11 may be an enlarged top view of the region R2 similar to that shown in FIG. 7 .

Referring to FIG. 11 , in the area shown in FIG. 11 (eg, the left or right side of the sensing area 101 ), the polarizer 170 can completely overlap the first signal line 110 and the third signal line 130 . In addition, if the first ground line 152 is provided, the polarizer 170 can overlap the first ground line 152 .

FIG. 12 is a partial top view of the relationship between the first signal line, the third signal line and the polarizer in yet another embodiment of the present invention. For example, FIG. 12 may be an enlarged top view schematic diagram similar to the region R2 shown in FIG. 7 .

Referring to FIG. 12 , in the area shown in FIG. 12 (eg, the left or right side of the sensing area 101 ), the polarizer 170 can completely overlap the first signal line 110 and the third signal line 130 .

In this way, the polarizer 170 may be able to protect at least the first signal line 110; or, it may be possible to further protect at least a part of the third signal line 130.

FIG. 13 is a schematic cross-sectional view of a touch device according to a sixth embodiment of the present invention. The touch device 60 of this embodiment is similar to the touch device 50 of the fifth embodiment. Similar components are denoted by the same reference numerals and have similar functions, materials or formation methods, and descriptions thereof are omitted.

Referring to FIG. 7 , the touch device 50 may further include a second substrate 200 , a liquid crystal layer 190 , a color filter 180 , a third substrate 300 and a polarizer 170 . The liquid crystal layer 190 and the color filter 180 may be located between the second substrate 200 and the third substrate 300 . The polarizer 170 and the protective layer 210 may be located on the third substrate 300 .

In one embodiment, the third substrate 300 and the color filter 180 located thereon may be called a color filter substrate (CF substrate), but the invention is not limited thereto.

In one embodiment, the touch device 50 may include or be referred to as a touch and protective glass solution panel (Oneglass solution Panel; OGS Panel), but the invention is not limited thereto.

In one embodiment, through the above method, the touch element and the display element can be integrated, which may facilitate the realization of a narrow-frame touch display device.

To sum up, the present invention uses the third signal line/fourth signal line to reduce the potential difference between the first signal line/second signal line and the lines adjacent thereto when using the touch device. Therefore, the possibility of damage or damage to the first signal line and the second signal line (such as line moisture, line corrosion, line oxidation and/or reduced conductivity) can be reduced. In this way, the yield, quality or service life of the touch device can be improved.

Claims (12)

1. A touch device, comprising: The substrate has a sensing area and a non-sensing area; A first signal line located in the non-sensing area and extending to the sensing area; a second signal line located in the non-sensing area and extending to the sensing area; A third signal line is located in the non-sensing area and adjacent to the first signal line, and the third signal line has at least a first mesh line area; and A fourth signal line is located in the non-sensing area and adjacent to the second signal line, and the fourth signal line has at least a second mesh line area, The vertical projections of the third signal line and the fourth signal line to the substrate are located between the vertical projections of the first signal line and the second signal line to the substrate. 2. The touch device of claim 1, wherein the third signal line is away from the sensing area, and/or the fourth signal line is away from the sensing area. 3. The touch device of claim 1, further comprising: A first ground line, wherein the third signal line is located between the first ground line and the first signal line. 4. The touch device of claim 1, further comprising: A second ground line, wherein the fourth signal line is located between the second ground line and the second signal line. 5. The touch device of claim 1, further comprising: Driving element, wherein the first signal line, the second signal line, the third signal line and the fourth signal line are electrically connected to the driving element, The third signal line and the fourth signal line are not grounded. 6. The touch device of claim 5, wherein the non-sensing area includes a fan-out area between the sensing area and the driving element, and the first mesh line area and the The second mesh line area is at least located in the fan-out area. 7. The touch device of claim 6, wherein the non-sensing area further includes a first peripheral area relative to the fan-out area, and the third signal line is not disposed in the first peripheral area. , and/or the fourth signal line is not provided in the first peripheral area. 8. The touch device of claim 6, wherein in the fan-out area: The width of the first mesh line area of the third signal line is greater than twice the width of the first signal line; and The width of the second mesh line area of the fourth signal line is greater than twice the width of the second signal line. 9. The touch device of claim 5, wherein the driving element is adapted to transmit or receive a first signal through the first signal line, and the driving element is adapted to transmit or receive a first signal through the third signal line. a third signal, and the timing of the first signal does not overlap with the timing of the third signal. 10. The touch device of claim 5, wherein the driving element is adapted to transmit or receive a second signal through the second signal line, and the driving element is adapted to transmit or receive through the fourth signal line. a fourth signal, and the timing of the second signal overlaps with the timing of the fourth signal. 11. The touch device of claim 1, further comprising: A polarizer is located on the substrate and overlaps at least the first signal line and the third signal line. 12. The touch device of claim 1, wherein the substrate further has a display area overlapping the sensing area, and the touch device further comprises: A pixel array substrate located on the sensing area, wherein the pixel array substrate includes: A plurality of scanning lines and a plurality of data lines are located on the pixel array substrate, wherein the plurality of scanning lines intersect the plurality of data lines; A plurality of transfer lines are located on the pixel array substrate, intersect with the plurality of scan lines and are electrically connected; and A plurality of pixel structures are electrically connected to the plurality of scan lines and the plurality of data lines.