TWI754963B - Touch device - Google Patents

Abstract

Touch device includes panel, integrated circuit(IC), multiplexer (MUX) circuit, first TP (touch panel) trace and second TP trace. IC is set up on first side of panel; MUX is set up on second side opposite to first side of panel; First TP trace is coupling between IC and MUX circuit, and sends touch sensor signal from IC to MUX circuit; and second TP trace is coupling between MUX circuit and panel, and sends touch sensor signal which the MUX circuit selects and outputs to panel; which first TP trace is set up in at least one of a first conductive layer and a second conductive layer of panel, which second conductive layer is set up above first conductive layer and data line set up on first conductive layer；which second TP trace is set up in at least one of first conductive layer and second conductive layer of panel.

Description

touch device

This case involves an electronic device. In detail, this case relates to a touch device.

Today's touch technology is mainly divided into mutual capacitance and self capacitance. The self capacitance touch sensing electrodes usually need to be connected to the control chip set through wires, resulting in the number of wires and the size of the driving chip set. As the size of the panel increases, in addition to using a multiplexer to reduce the number of traces, the size of the driver chip set will also be improved, but there is still room for improvement in the circuit structure of the overall touch device.

One aspect of the present case relates to a touch device. The touch device includes a panel, an integrated circuit, a multiplexer circuit, at least one first touch wire and at least one second touch wire. The integrated circuit is arranged on the first side of the panel. The multiplexer circuit is disposed on the second side of the panel, wherein the second side is opposite to the first side. At least one first touch trace is coupled between the integrated circuit and the multiplexer circuit, and is used for transmitting at least one touch sensing signal from the integrated circuit to the multiplexer circuit; and at least one second touch trace is coupled connected between the multiplexer circuit and the panel, and used to transmit at least one touch sensing signal selected and output by the multiplexer circuit to the panel; wherein at least one first touch trace is arranged on the first conductive line of the panel At least one of the layer and the second conductive layer, wherein the second conductive layer is disposed above the first conductive layer, and at least one data line is disposed in the first conductive layer; wherein at least one second touch trace is disposed on the panel At least one of the first conductive layer and the second conductive layer.

The following will clearly illustrate the spirit of this case with drawings and detailed descriptions. Anyone with ordinary knowledge in the technical field who understands the embodiments of this case can make changes and modifications with the techniques taught in this case, which does not deviate from this case. spirit and scope.

The language used herein is for the purpose of describing particular embodiments and is not intended to be limiting. The singular forms such as "a", "the", "the", "this" and "the", as used herein, also include the plural forms.

The language used herein is for the purpose of describing particular embodiments and is not intended to be limiting. The singular forms such as "a", "the", "the", "this" and "the", as used herein, also include the plural forms.

The terms "comprising", "including", "having", "containing", etc. used in this document are all open-ended terms, meaning including but not limited to.

Regarding the terms (terms) used in this article, unless otherwise specified, they usually have the ordinary meaning of each term used in this field, in the content of this case and in the special content. Certain terms used to describe the present case are discussed below or elsewhere in this specification to provide those skilled in the art with additional guidance in the description of the present case.

FIG. 1 is a schematic diagram of a touch device according to some embodiments of the present application. As shown in FIG. 1 , in some embodiments, the touch device 100 includes a panel 110 , an integrated circuit 130 and a multiplexer circuit 150 . The integrated circuit 130 is disposed on the first side of the panel 110 , and the multiplexer circuit 150 is disposed on the second side of the panel 110 . The multiplexer circuit 150 is disposed on the other side of the integrated circuit 130 , and the multiplexer circuit 150 is electrically coupled to the integrated circuit 130 and the panel 110 . Please refer to FIG. 2 again. In operation, the multiplexer circuit 150 can receive a plurality of analog or digital touch sensing signals transmitted from the integrated circuit 130, and select one signal from the plurality of analog or digital input signals to output to panel 110. The touch sensing signal is used to sense the change of touch capacitance caused by pressing.

In some embodiments, the integrated circuit 130 includes many electronic components, such as transistors, diodes, resistors, and capacitors, concentrated on the same wafer. The integrated circuit 130 includes an analog IC (integrated circuit, IC), a digital IC, and a mixed design of the digital circuit and the analog circuit on the same chip. In some embodiments, the integrated circuit 130 can be an integrated driver and touch IC (Touch and Display Driver Integration, TDDI). The integrated driver and touch IC can have the functions of touch control and display driver at the same time. The driver and touch IC can save the internal space for disposing the touch IC and the driver IC in the touch device, so as to facilitate the overall circuit design of the touch device.

FIG. 2A is a schematic diagram of a partial structure of a touch device according to some embodiments of the present application. FIG. 2A is a partially enlarged schematic view of the touch device of FIG. 1 . As shown in FIG. 2A , the touch device 200 includes an integrated circuit 210 , a multiplexer circuit 230 , second touch wires 251 , 252 , and 253 , a first touch wire 270 and a touch area 290 . Please refer to FIG. 1 and FIG. 2A , the second touch traces 251 and 252 , the first touch trace 270 and the touch area 290 correspond to part of the structure of the panel 110 in FIG. 1 . In some embodiments, please refer to FIG. 1 and FIG. 2A, the touch area 290 may be located anywhere on the panel 110, and the size and number of the touch area 290 are not limited to those shown in FIG. 2A.

In some embodiments, the integrated circuit 210 transmits at least one touch sensing signal to the multiplexer circuit 230 through the first touch trace 270 , and then through the second touch trace 251 or the second touch trace 252 Sending at least one touch sensing signal to the touch area 290 in the panel, in other words, the first touch trace is a trace for transmitting signals from the integrated circuit to the multiplexer circuit, and the second touch trace is a multiplexer The circuit transmits signals to the traces of the touch area. For the sake of brevity of the description, it will not be repeated in the following paragraphs.

Next, the multiplexer circuit 230 includes a first voltage guard circuit Vguard, first control lines TPMUX1 and TPMUX2, second control lines TPMUXG_1 and TPMUXG_2, and a plurality of multiplexer switches. The first voltage protection circuit Vguard is used for outputting at least one protection signal to reduce the load when the resistor and capacitor in the circuit oscillate and prevent damage to the element caused by overvoltage or overcurrent.

The plurality of multiplexer switches described above respectively include a plurality of first switches M1 and a plurality of second switches M2. One ends of the plurality of first switches M1 are respectively coupled to at least one first touch wire, and the other ends of the plurality of first switches M1 are coupled to at least one second touch wire. The control of the plurality of first switches M1 The terminals are respectively connected to the at least two first control lines, and receive the first control signals of the first control lines to transmit at least one touch sensing signal.

For example, the control terminal of the first switch M11 is connected to the first control line TPMUX2, and selects and outputs at least one touch sensor from the first touch trace 270 according to the first control signal of the first control line TPMUX2. The signal is then transmitted to a plurality of touch areas 290 in the panel through the second touch traces 251 . Similarly, the control terminal of the first switch M12 is connected to the first control line TPMUX1, and selects and outputs at least one touch sensing signal from the first touch trace 270 according to the first control signal of the first control line TPMUX1. The second touch traces 252 are transmitted to a plurality of touch areas 290 in the panel.

Next, one ends of the plurality of second switches M2 are respectively coupled to the first voltage protection circuit Vguard, and the other ends of the plurality of second switches M2 are coupled to at least one second touch trace, and the plurality of second switches M2 control The terminals are respectively connected to at least two second control lines, and receive the second control signals of the second control lines to transmit at least one protection signal.

For example, the control terminal of the second switch M21 is connected to the second control line TPMUXG_2, and selects and outputs at least one guard signal from the first voltage guard circuit Vguard according to the second control signal of the second control line TPMUXG_2, and then At least one touch trace is transmitted through at least one second touch trace The guard signal is sent to the touch area 290 . Similarly, the control terminal of the second switch M22 is connected to the second control line TPMUXG_1, and selects and outputs at least one guard signal of the first voltage guard circuit Vguard according to the second control signal of the second control line TPMUXG_1, and then uses at least one guard signal of the first voltage guard circuit Vguard to output. A second touch trace transmits at least one guard signal to the touch area 290 . Compared with the connection terminals of the plurality of first switches M1 being electrically connected to the first touch traces and the second touch traces, the connection terminals of the plurality of second switches M2 are electrically connected to the voltage protection circuit and at least one second touch trace. String.

In some embodiments, the second terminals of the plurality of second switches M2 may be coupled to the second terminals of the plurality of first switches M1, and the second terminals of the plurality of first switches M1 are further connected to at least one second contact Control wiring. For example, one end of the second switch M21 is electrically connected to one end of the first switch M11, and is then electrically connected to the second touch trace 251. Similarly, one end of the second switch M22 is electrically connected to the first switch M12. One end is electrically connected to the second touch trace 252 .

The above-mentioned first control lines TPMUX1 and TPMUX2 are at least two. In some embodiments, each time a first control line is added, a plurality of first switches M1 and a plurality of second switches M2 are also added, and the first touch wiring and the second touch wiring also correspond to a plurality of first switches M1 and a plurality of second switches M2. The connection terminals of a switch are increased.

FIG. 2B is a schematic diagram of a partial structure of a touch device according to other embodiments of the present application. 2B is a schematic diagram of a part of the structure of the touch device of FIG. 1 , except that the second voltage protection circuit Vguard2 is additionally disposed on the first side of the panel, the rest of the structure is the same as that of FIG. 2A, and will not be repeated here. As shown in FIG. 2B , in some embodiments, compared with the touch device shown in FIG. 2A , the second voltage protection circuit Vguard2 is arranged on the first side of the panel, that is, on the same side as the integrated circuit 210 , and the second voltage protection circuit Vguard2 is arranged on the first side of the panel. The purpose of the voltage protection circuit Vguard2 is to connect with the first voltage protection circuit Vguard1 by a metal wire, so as to further reduce the load when the resistance and capacitance in the circuit oscillate.

Then, in response to the change of the position of the multiplexer circuit, the control lines and the wiring configuration of the control multiplexer circuit must also be adjusted correspondingly. Variation example.

In some embodiments, please refer to FIG. 2B, taking the AA' line as a reference, and re-direct the cross-section of a part of the electrode layer cut into the touch area 290. FIG. 3 to FIG. 11 are cross-sectional schematic diagrams of the wiring configuration.

FIG. 3 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application. As shown in FIG. 3 , in some embodiments, the touch device 300 includes a plurality of common electrodes 310 , a plurality of dielectric layers 320 , a data line 330 , a glass substrate 340 , a first touch trace 350 and a second touch Control traces 371, 372 and 373.

Please refer to FIG. 3 again, the second touch traces 371 , 372 and 373 are all disposed on the second conductive layer, and the data line 330 is disposed on the first conductive layer. The at least one first touch trace 350 and the second touch traces 371 , 372 and 373 do not overlap with the plurality of common electrodes 310 in the vertical direction, and are aligned with the plurality of common electrodes 310 . A plurality of dielectric layers 320 are located on the glass substrate 340 and between the first conductive layer and the second conductive layer. In some embodiments, the at least one first touch trace 350 and the second touch traces 371 , 372 and 373 may partially overlap with the plurality of common electrodes 310 in the vertical direction.

FIG. 4 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application. As shown in FIG. 4 , in some embodiments, the touch device 400 includes a plurality of common electrodes 410 , a data line 430 , a first touch trace 450 , and second touch traces 471 , 472 and 473 , and the rest of the devices Part of the structure is the same as that of the touch device in FIG. 3 , and will not be repeated here.

In some embodiments, as shown in FIG. 4 , the data lines 430 , at least one first touch trace 450 , and second touch traces 471 , 472 and 473 are all disposed on the first conductive layer. 3 , the number of the second conductive layer and the dielectric layer can be reduced in the touch device 400 . In some embodiments, at least one of the first touch traces 450 and the second touch traces 471 , 472 and 473 may partially overlap with the plurality of common electrodes 410 in the vertical direction.

FIG. 5 is a schematic cross-sectional view of a touch wiring configuration of a touch device according to some embodiments of the present application. As shown in FIG. 5 , in some embodiments, the touch device 500 includes a common electrode 510 , a data line 530 , two first touch traces 550 and two first touch traces 551 , and a second touch trace Lines 571 , 572 , 573 and 574 , the rest of the device structure is the same as that of the touch device shown in FIG. 3 , and will not be repeated here.

In some embodiments, as shown in FIG. 5 , the second touch traces 571 , 572 , 573 and 574 are all disposed on the second conductive layer, do not overlap with the plurality of common electrodes 510 in the vertical direction and are aligned with the data lines 530. The two first touch traces 550 and the two first touch traces 551 are both disposed on the first conductive layer. The first touch traces overlap the plurality of common electrodes 510 in the vertical direction and are not connected to the data lines 530 . Disposing the first touch traces on the data lines 530 can reduce impedance and capacitive loads. In some embodiments, the second touch traces 571 , 572 , 573 and 574 may partially overlap with the plurality of common electrodes 510 in the vertical direction.

FIG. 6 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application. As shown in FIG. 6 , in some embodiments, the touch device 600 includes a common electrode 610 , a data line 630 , two first touch traces 650 and two first touch traces 651 , and a second touch trace Lines 671 , 672 , 673 and 674 , the rest of the device structure is the same as that of the touch device shown in FIG. 3 , and will not be repeated here.

In some embodiments, as shown in FIG. 6 , when the number of the second touch traces in the second conductive layer and the number of the first touch traces in the first conductive layer are the same, two first touch traces can be connected The traces 650 and the two first touch traces 651 are disposed on the second conductive layer and do not overlap with the plurality of common electrodes 610 in the vertical direction and are aligned with the data lines 630 . The second touch traces 671 , 672 , 673 and 674 are arranged on the first layer and overlap with the plurality of common electrodes 610 in the vertical direction and are not connected to the data lines 630 . In some embodiments, the two first touch traces 650 and the two first touch traces 651 may partially overlap with the plurality of common electrodes 610 in the vertical direction.

FIG. 7 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application. As shown in FIG. 7 , in some embodiments, the touch device 700 includes a common electrode 710 , a data line 730 , three first touch lines 750 and one first touch line 751 , and a second touch line Lines 771 , 772 , 773 and 774 , and other parts of the structure of the device are the same as those of the touch device in FIG. 3 , and will not be repeated here.

In some embodiments, as shown in FIG. 7, compared with FIG. 5, when the number of the first control lines is increased to three, the number of first switches is increased accordingly, and the number of the first touch control lines 750 is also increased from two. The number is increased to three. The three first touch traces 750 are respectively connected to the first switch through the first conductive layer. The first touch traces 751 are the three first touch traces extending to the right from the AA' line in Figure 2B. One of the traces, the first touch traces are all disposed on the second conductive layer and overlap with the plurality of common electrodes 710 in the vertical direction, and the second touch traces 771 , 772 , 773 and 774 are disposed in the second conductive layer layer, which does not overlap the plurality of common electrodes 710 in the vertical direction and is aligned with the data lines 730 . In some embodiments, the second touch traces 771 , 772 , 773 and 774 may partially overlap with the plurality of common electrodes 710 in the vertical direction.

FIG. 8 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application. As shown in FIG. 8 , in some embodiments, the touch device 800 includes a common electrode 810 , a data line 830 , a first touch line 850 , a first touch line 851 , and a second touch line 871 , 872 , 873 and 874 , and other parts of the structure of the devices are the same as those of the touch device shown in FIG. 3 , and will not be repeated here.

In some embodiments, as shown in FIG. 8 , the second touch traces 871 , 872 , 873 and 874 are all disposed on the second conductive layer, do not overlap with the plurality of common electrodes 810 in the vertical direction and are aligned with data Line 830. The first touch traces can be configured as at least one, and are electrically connected to a plurality of first switches through the first conductive layer. The first touch traces 850 and 851 in FIG. 8 are in common with a plurality of first switches in the vertical direction. The electrodes 810 do not overlap, and extra space can be created between the plurality of data lines 830 for circuit design or the interval between the plurality of common electrodes 810 can be increased, thereby increasing the aperture ratio of the panel. In some embodiments, the first touch traces 850 and 851 , and the second touch traces 871 , 872 , 873 and 874 may partially overlap with the plurality of common electrodes 810 in the vertical direction.

FIG. 9 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application. As shown in FIG. 9 , in some embodiments, the touch device 900 includes a common electrode 910 , a data line 930 , first touch lines 950 and 951 , and second touch lines 971 , 972 , 973 and 974 , and the structure of the rest of the device is the same as that of the touch device in FIG. 3 , and will not be repeated here.

In some embodiments, as shown in FIG. 9 , when the number of first control lines is increased to three, the number of first switches is increased accordingly. The data line 930 and the second touch lines 971 , 972 , 973 and 974 are configured as the data line 830 and the second touch lines 871 , 872 , 873 and 874 in FIG. 8 . The first touch trace 950 can be configured as at least one in the first conductive layer and is electrically connected to a plurality of first switches, like the first touch traces 950 and 951 in FIG. The common electrodes 910 do not overlap. Therefore, additional space between the plurality of data lines 930 can be further increased for circuit design or the space between the plurality of common electrodes 910 can be enlarged, thereby further increasing the aperture ratio of the panel. In some embodiments, the first touch traces 950 and 951 and the second touch traces 971 , 972 , 973 and 974 may partially overlap with the plurality of common electrodes 910 in the vertical direction.

FIG. 10 is a schematic cross-sectional view of a touch wiring configuration of a touch device according to some embodiments of the present application. As shown in FIG. 10, in some embodiments, the touch device 1000 includes a common electrode 1010, a data line 1030, two first touch traces 1050 and two first touch traces 1051, and a second touch trace For lines 1071 , 1072 , 1073 and 1074 , the structure of other parts of the device is the same as that of the touch device shown in FIG. 3 , which is not repeated here.

In some embodiments, as shown in FIG. 10 , the two first touch traces 1050 may be disposed on the first conductive layer and the second conductive layer, respectively, and the second touch traces 1071 and 1072 may be disposed on the first conductive layer, respectively. The conductive layer and the second conductive layer, the first touch traces 1050 and 1051 and the second touch traces 1072 and 1074 located in the second conductive layer do not overlap with the plurality of common electrodes 1010 in the vertical direction and are aligned with the data lines , and the first touch traces 1050 and 1051 and the second touch traces 1071 and 1073 located in the first conductive layer overlap with a plurality of common electrodes 1010 in the vertical direction. The two first touch traces 1050 are respectively connected to the plurality of first switches through the first conductive layer and the second conductive layer. In some embodiments, the first touch traces 1050 and 1051 and the second touch traces 1072 and 1074 located in the second conductive layer may partially overlap with the plurality of common electrodes 1010 in the vertical direction.

FIG. 11 is a schematic cross-sectional view of a touch wiring configuration of a touch device according to some embodiments of the present application. As shown in FIG. 11, in some embodiments, the touch device 1100 includes a common electrode 110, a data line 130, three first touch traces 1150, two first touch traces 1151, and a second touch trace Lines 1171 , 1172 , 1173 and 1174 , and other parts of the structure of the device are the same as those of the touch device in FIG. 3 , and will not be repeated here.

In some embodiments, as shown in FIG. 11 , when the number of first control lines is increased to three, the number of first switches is increased accordingly. One of the first touch traces 1150 can be disposed on the second conductive layer, the other two first touch traces 1150 can be disposed on the first conductive layer, and the second touch traces 1171, 1172 and 1173 can be disposed on the first conductive layer, respectively. a conductive layer and a second conductive layer. The first touch traces 1150 and 1151 and the second touch traces 1172 and 1173 located in the second conductive layer do not overlap with the plurality of common electrodes 1110 in the vertical direction and are aligned with the data lines, while those located in the first conductive layer The two first touch traces 1150 , the one first touch trace 1151 and the second touch trace 1171 overlap with the plurality of common electrodes 1110 in the vertical direction. Compared with FIG. 10, one more first touch trace is connected to the plurality of first switches through the first conductive layer. In this trace configuration, there is one more first touch trace in the first conductive layer. Placing the lines next to the data lines reduces impedance and capacitive loading. In some embodiments, the first touch traces 1150 and 1151 and the second touch traces 1172 and 1173 located in the second conductive layer may partially overlap with the plurality of common electrodes 1110 in the vertical direction.

In some embodiments, please refer to FIG. 2 , the touch device 200 is an in-cell touch panel structure, and the touch area 290 of the touch device 200 can be a plurality of common electrodes in the above-mentioned embodiments 310, 410, 510, 610, 710, 810, 910, 1010 and 1110. In this embodiment, the plurality of common electrodes 310 , 410 , 510 , 610 , 710 , 810 , 910 , 1010 and 1110 in the above-mentioned embodiments can be touch electrodes or other types of electrodes.

In some embodiments, in the case where there are at least two first control lines, the above-mentioned embodiments only show the longitudinal cross-sectional view of line AA' in FIG. 2B. In fact, the wiring configuration of the entire touch device can be implemented in all the above-mentioned implementations. The arrangement and combination of the example, in other words, the configuration of the traces is changed according to the load of the resistance-capacitance oscillation on the circuit and the aperture ratio of the panel, and there are different design methods according to the needs.

In some embodiments, according to the position of the multiplexer circuit in the touch device, after the configuration of the traces is changed, the resistance and capacitance will also change, and the resistance and capacitance values of the relative positions of the multiplexer circuit and the integrated circuit are listed. as follows: The multiplexer circuit is on the same side as the integrated circuit The multiplexer circuit and the integrated circuit are located on the opposite side Sum of Equivalent Capacitance 100.94 196.85 equivalent resistance sum 10.24 12.28 Table I

In some embodiments, please refer to Table 1. In the case where there are at least two first control lines, firstly, the resistance values of the multiplexer circuit and the integrated circuit are very similar when they are located on the same side and the opposite side. The difference between the capacitance of the industrial circuit and the integrated circuit when they are on the same side and the opposite side is nearly twice. Then, because the formula of impedance and resistance-capacitance oscillation is inversely proportional to the capacitance, when the resistance is similar, the larger the capacitance, the higher the impedance and the higher the resistance. Resistor-capacitor oscillation is smaller.

According to the aforementioned embodiments, the present application provides a touch device, which is moved to the opposite side of the integrated circuit by the multiplexer circuit, that is, the side of the active area in the panel, effectively reducing the other side of the active area. Due to the structural space on one side, and in response to the change of the multiplexer circuit, the embodiment of the present case provides a variety of wiring configurations, which can effectively reduce the load when the resistor and capacitor oscillate, and effectively improve the aperture ratio of the panel.

Although this case is disclosed above with detailed embodiments, this case does not exclude other possible implementations. Therefore, the protection scope of this case should be determined by the scope of the appended patent application, rather than being limited by the foregoing embodiments.

For those skilled in the art, various changes and modifications can be made to this case without departing from the spirit and scope of this case. Based on the foregoing embodiments, all changes and modifications made to this case are also covered by the protection scope of this case.

100: Touch Device 110: Panel 130: Integrated Circuits 150: Multiplexer circuit 200: Touch Device 210: Integrated Circuits 230: Multiplexer Circuits M1: a plurality of first switches M2: a plurality of second switches M11.M12: first switch M21.M22: Second switch 251~252: The second touch trace 270: First touch trace 290:touch area Vguard, Vguard1: first voltage protection circuit Vguard2: The second voltage protection circuit TPMUX1, TPMUX2: The first control line TPMUXG_1, TPMUXG_2: Second control line 300: Touch Device 310: Common Electrode 320: Dielectric Layer 330: Data Line 340: glass substrate 350: First touch trace 371~373: Second touch trace 400: Touch Device 410: Common Electrode 430: Data Line 450: First touch trace 471~473: Second touch trace 500: Touch Device 510: Common Electrode 530: Data Line 550~551: The first touch trace 571~574: The second touch trace 600: Touch Device 610: Common Electrode 630: Data Line 650~651: The first touch trace 671~674: Second touch trace 700: Touch Device 710: Common Electrode 730: Data Line 750~751: The first touch trace 771~774: The second touch trace 800: Touch Device 810: Common Electrode 830: Data Line 850~851: The first touch trace 871~874: Second touch trace 900: Touch Device 910: Common Electrode 930: Data Line 950~951: The first touch trace 971~974: Second touch trace 1000: Touch Device 1010: Common Electrode 1030: Data Line 1050~1051: The first touch trace 1071~1074: Second touch trace 1100: Touch Devices 1110: Common Electrode 1130: Data Line 1150~1151: The first touch trace 1171~1173: Second touch trace

The content of this case can be better understood with reference to the embodiments in the following paragraphs and the following drawings: FIG. 1 is a schematic diagram of a touch device according to some embodiments of the present application; FIG. 2A is a schematic diagram of a partial structure of a touch device according to some embodiments of the present application; FIG. 2B is a schematic diagram of a partial structure of a touch device according to other embodiments of the present application; FIG. 3 is a schematic cross-sectional view of a touch wiring configuration of a touch device according to some embodiments of the present application; FIG. 4 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application; FIG. 5 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application; FIG. 6 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application; FIG. 7 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application; FIG. 8 is a schematic cross-sectional view of a touch wiring configuration of a touch device according to some embodiments of the present application; FIG. 9 is a schematic cross-sectional view of a touch wiring configuration of a touch device according to some embodiments of the present application; FIG. 10 is a schematic cross-sectional view of the touch wiring configuration of the touch device according to some embodiments of the present application; and FIG. 11 is a schematic cross-sectional view of a touch wiring configuration of a touch device according to some embodiments of the present application.

Domestic storage information (please note in the order of storage institution, date and number) without Foreign deposit information (please note in the order of deposit country, institution, date and number) without

900: Touch Device 910: Common Electrode 930: Data Line 950~951: The first touch trace 971~974: Second touch trace

Claims (10)

A touch device, comprising: a panel; an integrated circuit disposed on a first side of the panel; a multiplexer circuit disposed on a second side of the panel, wherein the second side is opposite to the first side; at least one first touch trace, coupled between the integrated circuit and the multiplexer circuit, and used for transmitting at least one touch sensing signal from the integrated circuit to the multiplexer circuit; and at least one second touch trace, coupled between the multiplexer circuit and the panel, and used for transmitting the at least one touch sensing signal selected and output by the multiplexer circuit to the panel; The at least one first touch trace is disposed on at least one of a first conductive layer and a second conductive layer of the panel, wherein the second conductive layer is disposed above the first conductive layer, and at least one a data line is disposed on the first conductive layer; The at least one second touch trace is disposed on at least one of the first conductive layer and the second conductive layer of the panel. The touch device of claim 1, wherein the at least one first touch trace and the at least one second touch trace are both disposed on the second conductive layer, and are connected to the panel in a vertical direction The plurality of common electrodes do not overlap or partially overlap. The touch device of claim 1, wherein the at least one first touch trace and the at least one second touch trace are both disposed on the first conductive layer, and are connected to the panel in a vertical direction The plurality of common electrodes do not overlap or partially overlap. The touch device of claim 1, wherein the at least one first touch wire includes a plurality of first touch wires, and the at least one second touch wire includes a plurality of second touch wires; Wherein the first touch traces are disposed on the first conductive layer and overlap with a plurality of common electrodes of the panel in a vertical direction, and the second touch traces are disposed in the second conductive layer and in the Do not overlap or partially overlap with the common electrodes of the panel in the vertical direction. The touch control device as claimed in claim 4, further comprising: The second touch traces are disposed on the first conductive layer and overlap with the common electrodes of the panel in the vertical direction, and the first touch traces are disposed on the second conductive layer in the vertical direction The direction does not overlap or partially overlaps with the common electrodes of the panel. The touch device of claim 1, wherein the at least one second touch wire includes a plurality of second touch wires; The second touch traces are disposed on the second conductive layer and do not overlap or partially overlap with a plurality of common electrodes of the panel in a vertical direction, and the at least one first touch trace is disposed on the first touch trace. A conductive layer does not overlap or partially overlap with the common electrodes of the panel in the vertical direction. The touch device of claim 1, wherein the at least one first touch trace and the at least one second touch trace are disposed on the second conductive layer and are connected to a plurality of the panel in a vertical direction The common electrodes do not overlap or partially overlap, and the at least one first touch trace and the at least one second touch trace are disposed on the first conductive layer and are both in the vertical direction with the common electrodes of the panel overlapping. The touch device of claim 1, wherein the multiplexer circuit comprises: a first voltage protection circuit for outputting at least one protection signal; A plurality of first switches respectively have a first end, a second end and a control end, the control end is used for receiving a plurality of first control signals from at least two first control lines, and according to the first control signal outputting the at least one touch sensing signal; and A plurality of second switches respectively have a first end, a second end and a control end, the control end is used for receiving a plurality of second control signals from at least two second control lines, and according to the second control The signal outputs the at least one guard signal. The touch control device as claimed in claim 8, further comprising: A second voltage protection circuit, located on the first side, is used for outputting the at least one protection signal. The touch device of claim 8, wherein the at least one second touch wire is coupled to the first ends of the first switches and the second switches, the at least one first touch wire is coupled to the second ends of the first switches, and the second ends of the second switches are coupled to the first voltage protection circuit.

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