CN113608631A

CN113608631A - Touch control device

Info

Publication number: CN113608631A
Application number: CN202110766368.9A
Authority: CN
Inventors: 林韦霖; 简钰峰
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2020-08-21
Filing date: 2021-07-07
Publication date: 2021-11-05
Anticipated expiration: 2041-07-07
Also published as: CN113608631B

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 is provided with a sensing area and a non-sensing area. The first signal line and the second signal line are positioned 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 one first mesh circuit 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 one second mesh circuit area.

Description

Touch control device

Technical Field

The present disclosure relates to electronic devices, and particularly to a touch device.

Background

In a touch device, a ground line is usually disposed at a boundary or edge of different signal lines to reduce mutual interference between signals and/or reduce external influences (e.g., environmental or other electronic components). However, when the touch device is turned on, the ground line and the signal line may have a corresponding potential difference, and the signal line is prone to be affected by moisture, corrosion, oxidation and/or reduced conductivity due to moisture (e.g., moisture in the environment or sweat of a human body when the touch device is used) in a high temperature or high humidity state. Therefore, the yield, quality or service life of the touch device may be affected.

In recent years, the above effect may be more serious due to the design trend of narrow bezel.

Disclosure of Invention

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

The touch device comprises a substrate, a first signal line, a second signal line, a third signal line and a fourth signal line, wherein the substrate is provided with a sensing area and a non-sensing area. The first signal line and the second signal line are located in the non-sensing region and extend to the sensing region. 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 one first mesh circuit 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 one second mesh circuit area.

Based on the above, the possibility of damage or damage (e.g., moisture, corrosion, oxidation and/or reduced conductivity) to the first signal line and the second signal line can be reduced through the third signal line and the fourth signal line. Therefore, the yield, quality or service life of the touch device can be improved.

Drawings

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

Fig. 2 is a schematic top view of a portion of a touch device according to a second embodiment of the invention.

Fig. 3 is a schematic top view of a portion of a touch device according to a third embodiment of the invention.

Fig. 4 is a schematic top view of a portion of a touch device according to a fourth embodiment of the invention.

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

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

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

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

FIG. 9 is a partial top view of a relationship among a first signal line, a third signal line and a polarizer according to an embodiment of the invention.

FIG. 10 is a schematic top view of a portion of a relationship among a first signal line, a third signal line and a polarizer according to yet another embodiment of the present invention.

FIG. 11 is a schematic top view of a portion of a relationship among a first signal line, a third signal line and a polarizer according to another embodiment of the present invention.

FIG. 12 is a schematic top view of a portion of a relationship among a first signal line, a third signal line and a polarizer according to still 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 invention.

Description of reference numerals:

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

100: substrate and first substrate

101: sensing region

102: non-sensing area

103: fan-out area

104: a first peripheral region

105: pad area

110: first signal line

120: second signal line

130: third signal line

130 a: a first mesh circuit region

140: fourth signal line

140 a: second mesh circuit zone

150: grounding wire

152: first grounding wire

154: second grounding wire

160: driving element

170: polaroid

180: color filter

190: liquid crystal layer

200: second substrate

210: protective layer

310: third substrate

d 1: a first direction

d 2: second direction

DL: data line

gl: adapter cable

GL: scanning line

OP 1: first opening

OP 2: second opening

R1, R2: region(s)

SPX: pixel structure

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

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

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

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

S150: ground signal

W1, W2, W3, W4: width of

Detailed Description

In the drawings, the thickness of layers, films, panels, regions, etc. have been exaggerated for clarity. Like reference numerals refer to like elements throughout the specification. 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 intervening 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 physical and/or electrical connections. Further, "electrically connected" or "coupled" may mean that there are additional elements between the elements.

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 be limited by 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 "portion" discussed below could be termed a second element, component, region, layer or portion 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 indicates 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 be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions integers, steps, operations, elements, components, and/or groups thereof.

Furthermore, 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. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. Thus, the exemplary term "lower" can include both an orientation of "lower" and "upper," depending on the particular orientation of the figure. 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 "beneath" can encompass both an orientation of above and below.

Unless defined otherwise, 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 interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Exemplary embodiments are described herein with reference to cross-sectional views that are schematic illustrations of idealized embodiments. Thus, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region shown or described as flat may generally have rough and/or nonlinear features. Further, the acute angles shown may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region 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 invention.

Referring to fig. 1, a 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 region 101 and a non-sensing region 102 outside the sensing region 101. The number of the first signal lines 110, the second signal lines 120, the third signal lines 130 and/or the fourth signal lines 140 may be adjusted according to design requirements, and is not limited in the present invention.

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

In the embodiment, the driving element 160 may be disposed in the pad area 105, and the corresponding Input/output interface (Input/output interface) of the driving element 160 may be electrically connected to the corresponding Input/output pad (Input/output pad) of the pad area 105, but the invention is not limited thereto. In one embodiment, the driving device 160 may be disposed on a Circuit board (e.g., a Flexible Printed Circuit board (FPC board)), and the corresponding input/output interface of the driving device 160 may be electrically connected to the corresponding input/output pad of the pad region 105 through the corresponding Circuit of the Circuit board. That is, the fan-out region 103 can be located between the sensing region 101 and the driving device 160 (or a region where the fan-out region is disposed, such as but not limited to the pad region 105) in terms of signal connection or electrical connection. In one embodiment, the driving device 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 region 102 and extends to the sensing region 101. For example, one end of the first signal line 110 may be electrically connected to a corresponding input/output pad in the pad region 105, and then may extend from the left or right side of the sensing region 101 to the sensing region 101 through the fan-out region 103.

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

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 signal line (Rx). For example, the first signal line 110 is, for example, a touch driving signal line, and the second signal line 120 is, for example, a touch sensing signal line, but the invention is not limited thereto.

The third signal line 130 is located in the non-sensing region 102 and adjacent to the first signal line 110. The third signal line 130 may be distant from the sensing region 101. That is, the third signal line 130 may not be located in the sensing region 101. One end of the third signal line 130 may be electrically connected to a corresponding input/output pad in the pad region 105, and then may extend to the non-sensing region 102 under the sensing region 101 through the fan-out region 103. In an embodiment, third signal line 130 may further extend to non-sensing region 102 on the left or right side of sensing region 101, but the invention is not limited thereto.

The fourth signal line 140 is located in the non-sensing region 102 and adjacent to the second signal line 120. The fourth signal line 140 may be distant from the sensing region 101. That is, the fourth signal line 140 may not be located in the sensing region 101. One end of the fourth signal line 140 may be electrically connected to a corresponding input/output pad in the pad region 105, and then may extend to the non-sensing region 102 under the sensing region 101 through the fan-out region 103. In an embodiment, fourth signal line 140 may further extend to non-sensing region 102 on the left or right side of sensing region 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 adapted to transmit an electronic signal to the driving element 160 or receive an electronic signal from the driving element 160. That is, the first signal line 110, the second signal line 120, the third signal line 130, and the fourth signal line 140 are substantially not grounded. In one embodiment, the third signal line 130 and/or the fourth signal line 140 are adapted to transmit or receive a dummy signal (dummy signal), 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 exclude other signals.

The third signal line 130 is at least between the edge of the substrate 100 and the first signal line 110, and the third signal line 130 is substantially not grounded. As a result, the possibility of damage or damage (e.g., moisture, corrosion, oxidation and/or reduced conductivity) to the first signal line 110 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 substantially not grounded. As a result, the possibility of damage or damage (e.g., moisture, corrosion, oxidation and/or reduced conductivity) to the second signal line 120 can be reduced.

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

In the present 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 substantially not grounded, the possibility of damage or damage (e.g., moisture, corrosion, oxidation and/or reduced conductivity) to the first signal line 110 can be reduced. In an embodiment, if (but not limited to) the distance between the first signal line 110 and the first ground line 152 is less than or equal to about 1 millimeter (mm), the damage or breakage of the first signal line 110 can be reduced by the third signal line 130 located between the first signal line 110 and the ground line 150.

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

In the present 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 not substantially grounded, the possibility of damage or damage (e.g., moisture, corrosion, oxidation and/or reduced conductivity) to the second signal line 120 can be reduced. In an embodiment, if (but not limited to) the distance between the second signal line 120 and the second signal line 120 is less than or equal to about 1 mm, the damage or breakage of the second signal line 120 can be reduced by the fourth signal line 140 located between the second signal line 120 and the ground line 150.

In an embodiment, there may be substantially no other signal line or ground line between the fourth signal line 140 and the second signal line 120 closest thereto, but the invention is not limited thereto.

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

Referring to fig. 2, in the fan-out area 103, a portion of the third signal line 130 may have at least one first mesh circuit area 130 a. The conductive pattern of the first mesh circuit region 130a includes a plurality of first openings OP1 separated from each other. A portion of the third signal lines 130 having the plurality of first openings OP1 may be referred to as a first mesh line. That is, the third signal line 130 may include a first mesh line. In the present embodiment, the plurality of first openings OP1 separated from each other may be arranged in an array, but the present invention is not limited thereto.

In one embodiment, the first mesh circuit region 130a may increase the distribution area of the surface charges thereof and/or may reduce the possibility of tip discharge or tip charge ionization. Thus, the possibility of damage or breakage of the first signal line 110 can be reduced.

In the present embodiment, the width W3 of the first mesh circuit region 130a of the third signal line 130 is greater than twice the width W1 of the first signal line 110. The 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. Therefore, the distribution area of the surface charges can be increased, and/or the probability of tip discharge or tip charge ionization can be reduced, so as to reduce the probability of damage or damage to the first signal line 110.

Referring to fig. 2, in the fan-out area 103, a portion of the fourth signal line 140 may have at least one second mesh circuit area 140 a. The conductive pattern of the second mesh circuit region 140a includes a plurality of second openings OP2 separated from each other. A portion of the fourth signal lines 140 having the plurality of second openings OP2 may be referred to as a second mesh line. That is, the fourth signal line 140 may include a second mesh line. In the present embodiment, the plurality of second openings OP2 separated from each other may be arranged in an array, but the present invention is not limited thereto.

In one embodiment, the second mesh circuit region 140a may increase the distribution area of the surface charges thereof and/or may reduce the possibility of tip discharge or tip charge ionization. As a result, the possibility of damaging or destroying the second signal line 120 can be reduced.

In the present embodiment, the width W4 of the second mesh circuit region 140a of the fourth signal line 140 is greater than twice the width W2 of the second signal line 120. The 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. Therefore, the distribution area of the surface charges can be increased, and/or the probability of tip discharge or tip charge ionization can be reduced, so as to reduce the probability of damage or damage to the second signal line 120.

Referring to fig. 2, in the present embodiment, the first ground line 152 or the second ground line 154 may include a corresponding mesh circuit, but the invention is not limited thereto.

It is noted that fig. 2 is only an exemplary illustration of the present embodiment, and the present invention is not limited to the third signal line 130, the fourth signal line 140, the first ground line 152 and the second ground line 154 all including corresponding mesh circuits.

Fig. 3 is a schematic top view of a portion of a touch device according to a third embodiment of the invention. The touch device 30 of the present embodiment is similar to the touch device 10 of the first embodiment or the touch device 20 of the second embodiment, and similar components are denoted by the same reference numerals, and have similar functions, materials, or formation manners, and descriptions thereof are omitted. For example, fig. 3 may be an enlarged top schematic view of region R1 similar to that shown in fig. 1.

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

Fig. 4 is a schematic top view of a portion of a touch device according to a fourth embodiment of the invention. The touch device 40 of the present embodiment is similar to the touch device 10 of the first embodiment or the touch device 20 of the second embodiment, and similar components are denoted by the same reference numerals, and have similar functions, materials, or formation manners, and descriptions thereof are omitted. For example, fig. 3 may be an enlarged top schematic view of region R1 similar to that shown in fig. 1.

Referring to fig. 4, the area shown in the present embodiment may not have a ground line (e.g., the same or similar ground line as the ground line 150).

Fig. 5 is a signal timing diagram of the first signal line and the third signal line according to an embodiment of the invention. Fig. 5 schematically shows a signal timing diagram of n first signals S110 (e.g., S110(1) -S110 (n)) and two third signals S130 (e.g., S130(1) and S130 (2)), but the invention is not limited thereto. That is, the number and the sequence of the first signal S110 and the third signal S130 can be adjusted according to actual requirements. In addition, fig. 5 may be a signal timing chart of a signal transmitted through the first signal line and a signal transmitted through the third signal line in any embodiment (for example, the foregoing embodiment or an embodiment described later).

Referring to fig. 1 and 5, the first signal line 110 is suitable for transmitting (e.g., transmitting or receiving) the first signal S110, the third signal line 130 is suitable for transmitting (e.g., transmitting or receiving) the third signal S130, and the timing of the first signal S110 and the timing of the third signal S130 are not substantially overlapped. 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 wave width; the difference lies in that: the time interval during which the first signal S110 has the pulse potential and the time interval during which the third signal S130 has the pulse potential do not substantially overlap.

In one embodiment, the first signal S110 and the third signal S130 are substantially the same or similar types. Therefore, the driving element 160 can process the first signal S110 and the third signal S130 by the same or similar rules; the difference lies in that: when calculating the touch coordinates, the information transmitted or represented by the third signal S130 may be ignored or not counted. Thus, 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 invention. Fig. 6 schematically shows a signal timing diagram of m second signals S120 (e.g., S120(1) -S120 (m)) and two fourth signals S140 (e.g., S140(1) and S140 (2)), but the invention is not limited thereto. That is, the number and the sequence of the second signal S120 and the fourth signal S140 can be adjusted according to actual requirements. In addition, fig. 6 may be a signal timing diagram of signals transmitted by the second signal line and signals transmitted by the fourth signal line in any embodiment (for example, the foregoing embodiment or an embodiment described later).

Referring to fig. 1 and 6, the second signal line 120 is suitable for transmitting (e.g., transmitting or receiving) the second signal S120, the fourth signal line 140 is suitable for transmitting (e.g., transmitting or receiving) the fourth signal S140, and the timing of the second signal S120 is not substantially overlapped with the timing of the fourth signal S140. 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 wave width; and: the time interval during which the second signal S120 has the pulse potential and the time interval during which the fourth signal S140 has the pulse potential do not substantially overlap.

In one embodiment, the second signal S120 and the fourth signal S140 are substantially the same or similar types. Therefore, the driving element 160 can process the second signal S120 and the fourth signal S140 by the same or similar rules; the difference lies in that: when calculating the touch coordinates, the information transmitted or represented by the fourth signal S140 may be ignored or not counted. Thus, the complexity of the driving element 160 can be reduced.

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 protection layer 210. The liquid crystal layer 190 and the color filter 180 may be disposed between the second substrate 200 and the first substrate 100. The polarizer 170 and the protection layer 210 may be disposed on the first substrate 100. The polarizer 170 at least overlaps the first signal line 110 and the third signal line 130, and the aforementioned "overlap" includes "complete overlap" and "partial overlap". It is noted that in fig. 7 or the like, the color filter 180 may be schematically illustrated. For example, the color filter 180 may have different colors (e.g., red, green, or blue) in different regions. It is noted that in fig. 7 or similar figures, the orientation of the liquid crystal layer 190 may be schematically illustrated.

In the 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 thereon may be referred to as a color filter substrate (CF substrate), but the invention is not limited thereto. In an 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 substrate 100 as a color filter substrate by plating and patterning, but the invention is not limited thereto.

In one embodiment, the second substrate 200 may include a substrate (e.g., glass, polymer, or other suitable substrate) and a film layer (e.g., corresponding insulating layer, conductive layer, and/or semiconductor layer) on the substrate. A display region (not directly shown) of the second substrate 200 may overlap the sensing region 101 (shown in fig. 1) of the first substrate 100. The display area of the second substrate 200 may have corresponding driving elements (e.g., active elements and/or corresponding electrodes for driving the liquid crystal to be biased, or further comprise corresponding capacitors). The aforementioned "overlap" may include "complete overlap" and "partial overlap".

In an embodiment, the second substrate 200 may be referred to as an array substrate (array substrate), but the present invention is not limited thereto.

In one embodiment, the Touch device 50 may include or be referred to as an On-cell Touch Panel (OTP Panel), but the invention is not limited thereto.

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. The data lines DL are disposed on the pixel array substrate 200 and arranged in the first direction d1, the scan lines GL are disposed on the pixel array substrate 200 and arranged in the second direction d2, and the first direction d1 intersects (e.g., but not limited to, perpendicular to) the second direction d 2. The pixel structures SPX are electrically connected to the data lines DL and the gate lines GL. The plurality of patch lines GL are disposed on the pixel array substrate 200 and arranged in the first direction d1, and the plurality of patch lines GL are electrically connected to the plurality of scan lines GL. Therefore, the routing at the left and right sides of the touch device 10c can be reduced through the patch cord gl, and a narrow-frame touch display device is further realized.

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

Referring to fig. 9, in the region (e.g., the left side or the right side of the sensing region 101) shown in fig. 9, the polarizer 170 may 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 may not overlap the first ground line 152.

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

Referring to fig. 10, in the region (e.g., the left side or the right side of the sensing region 101) shown in fig. 10, the polarizer 170 may completely overlap the first signal line 110 and partially overlap the third signal line 130.

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

Referring to fig. 11, in the region (e.g., the left side or the right side of the sensing region 101) shown in fig. 11, the polarizer 170 may 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 may overlap the first ground line 152.

FIG. 12 is a schematic top view of a portion of a relationship among a first signal line, a third signal line and a polarizer according to still another embodiment of the present invention. For example, fig. 12 may be an enlarged top schematic view of region R2 similar to that shown in fig. 7.

Referring to fig. 12, in the region (e.g., the left side or the right side of the sensing region 101) shown in fig. 12, the polarizer 170 may completely overlap the first signal line 110 and the third signal line 130.

As such, the polarizer 170 may at least protect the first signal line 110; or, it may be possible to further protect at least a portion 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 invention. The touch device 60 of the present embodiment is similar to the touch device 50 of the fifth embodiment, and similar components are denoted by the same reference numerals, and have similar functions, materials or forming manners, 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 disposed between the second substrate 200 and the third substrate 300. The polarizer 170 and the protection layer 210 may be disposed on the third substrate 300.

In one embodiment, the third substrate 300 and the color filter 180 thereon may be referred to as 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 cover glass integrated Panel (OGS Panel), but the invention is not limited thereto.

In an embodiment, the touch device and the display device can be integrated in the above manner, which may be beneficial for implementing a narrow-bezel touch display device.

In summary, the third signal line/the fourth signal line can reduce the potential difference between the first signal line/the second signal line and the line adjacent thereto when the touch device is used. Therefore, the possibility of damage or damage (e.g., moisture, corrosion, oxidation and/or reduced conductivity) to the first signal line and the second signal line can be reduced. Therefore, the yield, quality or service life of the touch device can be improved.

Claims

1. A touch device, comprising:

a substrate having a sensing region and a non-sensing region;

a first signal line located in the non-sensing region and extending to the sensing region;

a second signal line located in the non-sensing region and extending to the sensing region;

a third signal line located in the non-sensing region and adjacent to the first signal line, the third signal line having at least one first mesh circuit region; and

and a fourth signal line located in the non-sensing region and adjacent to the second signal line, wherein the fourth signal line has at least one second mesh circuit region.

2. The touch device of claim 1, wherein the third signal line is remote from the sensing region and/or the fourth signal line is remote from the sensing region.

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:

a 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.

6. The touch device of claim 5, wherein the non-sensing area comprises a fan-out area between the sensing area and the driving element, and the first mesh area and the second mesh area are at least located in the fan-out area.

7. The touch device of claim 6, wherein the non-sensing area further comprises a first peripheral area opposite to the fan-out area, the third signal line is not disposed in the first peripheral area, and/or the fourth signal line is not disposed in the first peripheral area.

8. The touch device of claim 6, wherein in the fan-out area:

the width of the first mesh circuit region of the third signal line is greater than twice the width of the first signal line; and is

The width of the second mesh circuit region 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, the driving element is adapted to transmit or receive a third signal through the third signal line, and timing of the first signal and timing of the third signal do not substantially overlap.

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, the driving element is adapted to transmit or receive a fourth signal through the fourth signal line, and timing of the second signal substantially overlaps timing of the fourth signal.

11. The touch device of claim 1, further comprising:

and the polaroid is positioned on the substrate and at least overlapped with 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 on the sensing region, wherein the pixel array substrate comprises:

a plurality of scan lines and a plurality of data lines on the pixel array substrate, wherein the plurality of scan lines intersect the plurality of data lines;

the plurality of patch cords are positioned on the pixel array substrate, intersect with the plurality of scanning lines and are electrically connected; and

and the pixel structures are electrically connected to the scanning lines and the data lines.