TWI841854B - Driving circuit and driving method - Google Patents

Abstract

A driving circuit includes at least one light-emitting element, a drive line, a data line, a touch sensor and a read line. The drive line is electrically coupled to a first terminal of the at least one light-emitting element. The data line is electrically coupled to a second terminal of the at least one light-emitting element. The drive line is electrically coupled to a first terminal of the touch sensor. The read line is electrically coupled to a second terminal of the touch sensor. The read line and the data line are electrical insulation.

Description

Driving circuit and driving method

This case is about a driving circuit, and in particular about a driving circuit with touch sensing.

In today's technology, with the popularity of touch panels, in order to provide a better user experience, touch display devices are becoming thinner and lighter, the space available for circuits will decrease, and users' requirements for sensing accuracy will also increase. How to reduce the area of lines and pins in touch panels and provide better sensing accuracy is an important issue in this field.

The present disclosure provides a driving circuit, comprising at least one light-emitting element, a driving line, a data line, a touch sensor, and a read line. The driving line is electrically coupled to a first end of the at least one light-emitting element. The data line is electrically coupled to a second end of the at least one light-emitting element. The driving line is electrically coupled to a first end of the touch sensor. The read line is electrically coupled to a second end of the touch sensor, wherein the read line is electrically isolated from the data line.

A driving method is used to operate a driving circuit, wherein the driving circuit includes at least one light-emitting element and a touch sensor, wherein the first end of the at least one light-emitting element and the first end of the touch sensor are electrically coupled, and the second end of the at least one light-emitting element and the second end of the touch sensor are electrically isolated, wherein the driving method includes the following steps. During a light-emitting period, a driving signal is provided to the first end of the at least one light-emitting element and the first end of the touch sensor to drive the at least one light-emitting element to emit light and charge the touch sensor. During a sensing period, a sensing signal is received from the second end of the touch sensor, wherein the light-emitting period overlaps the sensing period.

A driving method is used to operate a driving circuit, wherein the driving circuit includes at least one light-emitting element and a touch sensor, wherein the first end of the at least one light-emitting element and the first end of the touch sensor are electrically coupled, and the second end of the at least one light-emitting element and the second end of the touch sensor are electrically isolated, wherein the driving method includes the following steps. During a light-emitting period, a driving signal is provided to the first end of the at least one light-emitting element and the first end of the touch sensor to drive the at least one light-emitting element to emit light and charge the touch sensor. During a sensing period, a sensing signal is received from the second end of the touch sensor. During a reset period, a reset signal is provided to the second end of the touch sensor to reset the potential of the touch sensor.

A driving circuit includes at least one first light-emitting element, at least one second light-emitting element, at least one third light-emitting element, a plurality of driving lines, a plurality of data lines, and a plurality of first electrodes. The driving lines include a first driving line electrically coupled to a first end of at least one first light-emitting element, a second driving line electrically coupled to a first end of at least one second light-emitting element, and a third driving line electrically coupled to a first end of at least one third light-emitting element. The data lines are electrically coupled to a second end of at least one first light-emitting element, a second end of at least one second light-emitting element, and a second end of at least one third light-emitting element, respectively. The first driving line is electrically coupled to a first one of the first electrodes, the second driving line is electrically coupled to a second one of the first electrodes, and the third driving line is electrically coupled to a third one of the first electrodes.

In summary, the driving circuit of the present disclosure integrates at least one light-emitting element and the driving line of the touch sensor to significantly reduce the wiring area, and uses the driving signal provided to the at least one light-emitting element to quickly charge the touch sensor through the driving line.

The following is a detailed description of the embodiments with the attached drawings to better understand the present invention. However, the embodiments provided are not intended to limit the scope of the present invention, and the description of the structural operation is not intended to limit the order of its execution. Any device with equal functions produced by the re-combination of components is within the scope of the present invention. In addition, according to the standards and common practices of the industry, the drawings are only for the purpose of assisting the description and are not drawn according to the original size. In fact, the sizes of various features can be arbitrarily increased or reduced for the convenience of description. In the following description, the same components will be marked with the same symbols for easy understanding.

The indexes 1 to n in the component numbers and signal numbers used in the specification and drawings of this case are only for the convenience of referring to individual components and signals, and are not intended to limit the number of the aforementioned components and signals to a specific number. In the specification and drawings of this case, if a component number or signal number is used without specifying the index of the component number or signal number, it means that the component number or signal number refers to any unspecified component or signal in the component group or signal group to which it belongs.

In addition, the terms "include", "including", "have", "contain", etc. used in this article are open terms, which means "including but not limited to". In addition, "and/or" used in this article includes any one or more items in the relevant enumerated items and all combinations thereof.

In this article, when an element is referred to as "connected" or "coupled", it may refer to "electrically connected" or "electrically coupled". "Connected" or "coupled" may also be used to indicate the coordinated operation or interaction between two or more elements. In addition, although the terms "first", "second", etc. are used in this article to describe different elements, the terms are only used to distinguish between elements or operations described with the same technical terms.

Please refer to FIG. 1, which is a circuit diagram of a driver circuit 100 according to an embodiment of the present disclosure. As shown in FIG. 1, the driver circuit 100 includes at least one light-emitting element 110, a touch sensor 120, a control circuit 130, a drive line 140, a data line 150, and a read line 160. The control circuit 130 includes a scanning module 132, an output module 134, a read module 136, and a plurality of pins P0.

In some embodiments, the at least one light emitting element 110 may be implemented by a micro light emitting diode, a sub-millimeter light emitting diode, a light emitting diode, or other light emitting elements.

Structurally, the drive line 140 is electrically coupled to the first end of at least one light emitting element 110 and the first end of the touch sensor 120, and the drive line 140 is electrically coupled to the scanning module 132 through the pin P0. The scanning module 132 provides a drive signal S1 to the drive line 140 to drive at least one light emitting element 110 to emit light and charge the touch sensor 120.

It is worth noting that since the scanning module 132 is electrically coupled to at least one light emitting element 110 and the touch sensor 120 through the driving line 140, the scanning module 132 provides the driving signal S1 to at least one light emitting element 110 and the touch sensor 120 at the same time. In order to better explain how to drive at least one light emitting element 110 to emit light and charge the touch sensor 120 at the same time, it will be described in detail in the subsequent embodiments.

The data line 150 is electrically coupled to the second end of at least one light emitting element 110 , and the data line 150 is electrically coupled to the output module 134 via the pin P0 . The output module 134 provides a data signal Q1 to the data line 150 to control the brightness or light intensity of at least one light emitting element 110 .

The read line 160 is electrically coupled to the second end of the touch sensor 120 , and the read line 160 is electrically coupled to the read module 136 via the pin P0 . The read module 136 reads the sensing signal of the touch sensor 120 .

Please refer to FIG. 2, which is a circuit diagram of a driving circuit 100a according to an embodiment of the present disclosure. As shown in FIG. 2, the driving circuit 100a includes at least one light-emitting element 110a1-110a3, 110b1-110b3 and 110c1-110c3, a control circuit 130, driving lines 140_1-140_3, data lines 150_1-150_3 and read lines 160_1-160_3. The control circuit 130 includes a scanning module 132, an output module 134, a read module 136 and a plurality of pins P0.

In the embodiment of FIG. 2, at least one light emitting element 110a1-110a3, 110b1-110b3 and 110c1-110c3 is implemented by three light emitting elements connected in series. In other embodiments, at least one light emitting element 110a1-110a3, 110b1-110b3 and 110c1-110c3 can be implemented by one, two, four, six or other number of light emitting elements connected in series. The light emitting element can be implemented by a micro light emitting diode, a sub-millimeter light emitting diode, a light emitting diode or other light emitting elements.

Moreover, in the embodiment of FIG. 2, only three first electrodes 121_1~121_3, three second electrodes 122_1~122_3 and corresponding numbers of drive lines 140_1~140_3, data lines 150_1~150_3 and read lines 160_1~160_3 are used as examples for illustration. In actual examples, the driving circuit 100a may include a greater number of first electrodes, second electrodes and corresponding numbers of drive lines, data lines and read lines.

It is worth noting that the touch sensor 120 in FIG. 1 can be implemented by any one of the first electrodes 121_1-121_3 and any one of the second electrodes 122_1-122_3 in FIG. 2. In the visible area, the first electrodes 121_1-121_3 and the second electrodes 122_1-122_3 are electrically insulated from each other to implement mutual capacitance sensing. The first electrodes 121_1-121_3 extend along the second direction D2 and are arranged in sequence along the first direction D1, and the second electrodes 122_1-122_3 extend along the first direction and are arranged in sequence along the second direction D2. The first electrodes 121_1~121_3 each include a plurality of first electrode units connected in series along the second direction D2, and the second electrodes 122_1~122_3 each include a second electrode unit connected in series along the second direction D2. In some embodiments, the first electrode unit and the second electrode unit may be in a rhombus shape. However, the first electrode unit and the second electrode unit may also be in other shapes, and the present invention is not limited thereto. The first electrodes 121_1~121_3 and the second electrodes 122_1~122_3 may be implemented by metal materials (e.g., molybdenum aluminum molybdenum, copper, silver, titanium, etc.) or transparent conductive materials (e.g., indium tin oxide, zinc oxide, graphene, etc.).

In terms of structure, the driving line 140_1 is electrically coupled to the first end of at least one light-emitting element 110a1~110a3 and one end of the first electrode 121_1, and the driving line 140_1 is electrically coupled to the scanning module 132 through the pin P0. The scanning module 132 provides a driving signal S1 to the driving line 140_1 to drive at least one light-emitting element 110a1~110a3 to emit light and charge the first electrode 121_1.

The driving line 140_2 is electrically coupled to the first end of at least one light-emitting element 110b1~110b3 and one end of the first electrode 121_2, and the driving line 140_2 is electrically coupled to the scanning module 132 through the pin P0. The scanning module 132 provides a driving signal S2 to the driving line 140_2 to drive at least one light-emitting element 110b1~110b3 to emit light and charge the first electrode 121_2.

The driving line 140_3 is electrically coupled to the first end of at least one light-emitting element 110c1~110c3 and one end of the first electrode 121_3, and the driving line 140_3 is electrically coupled to the scanning module 132 through the pin P0. The scanning module 132 provides a driving signal S3 to the driving line 140_3 to drive at least one light-emitting element 110c1~110c3 to emit light and charge the first electrode 121_3.

The data line 150_1 is electrically coupled to the second end of at least one light emitting element 110a1, 110b1 and 110c1, and the data line 150_1 is electrically coupled to the output module 134 through the pin P0. The data line 150_2 is electrically coupled to the second end of at least one light emitting element 110a2, 110b2 and 110c2, and the data line 150_2 is electrically coupled to the output module 134 through the pin P0. The data line 150_3 is electrically coupled to the second end of at least one light emitting element 110a3, 110b3 and 110c3, and the data line 150_3 is electrically coupled to the output module 134 through the pin P0. The output module 134 provides data signals Q1-Q3 to the data lines 150_1-150_3 to control the brightness or light intensity of at least one light-emitting element 110a1-110a3, 110b1-110b3 or 110c1-110c3.

The read lines 160_1~160_3 are electrically isolated from the data lines 150_1~150_3. The read lines 160_1~160_3 are electrically coupled to one end of the second electrodes 122_1~122_3, and the read lines 160_1~160_3 are electrically coupled to the read module 136 through the pin P0. The read module 136 is used to read the sensing signals of the second electrodes 122_1~122_3.

To better understand how the control circuit 130 reads the sensing signal, please refer to FIG. 2 and FIG. 3. FIG. 3 is a functional block diagram of a drive circuit 100a according to an embodiment of the present disclosure. As shown in FIG. 3, the control circuit 130 includes a scanning module 132, an output module 134, and a reading module 136. The scanning module 132 is used to provide driving signals S1~S3 respectively. The output module 134 is used to provide data signals Q1~Q3.

The reading module 136 includes a digital signal processing circuit DSP, an analog-to-digital conversion circuit 136a and a reading circuit 136b. The analog-to-digital conversion circuit 136a includes a plurality of analog-to-digital converters ADC. The reading circuit 136b includes reading units Rx_1 to Rx_n. The reading units Rx_1 to Rx_n are electrically coupled to the plurality of analog-to-digital converters ADC respectively. The second electrodes 122_1 to 122_3 are electrically coupled to the reading units Rx_1 to Rx_3 through a plurality of pins P0.

In some embodiments, each reading unit Rx_1~Rx_3 can be implemented by at least one switch, and the logic level of the enable signal is received and determined by turning the switch on or off, thereby reading the sensing signal of the second electrode 122_1~122_3.

In some embodiments, the control circuit 130 further includes a control module 170. The control module 170 includes a touch processing unit 171, an interface module 172, a memory storage module 173, a data and timing processing module 174, a light-emitting element driving module 175, a light-emitting element control module 176, and a touch driving module 177. As shown in FIG. 3 , the touch processing unit 171 can store the sensing signal received from the reading module 136 in the memory storage module 173, and control the data and timing processing module 174 and the touch driving module 177 through the control interface module 172 according to the sensing signal. The touch driving module 177 is used to control the scanning module 132. The data and timing processing module 174 is used to control the light-emitting element driving module 175 and the light-emitting element control module 176. The light-emitting element driving module 175 controls the scanning module 132 and the output module 134.

In some embodiments, the control module 170 can control the scanning frequency of the scanning module 132 according to the sensing signal transmitted from the second electrodes 122_1~122_3 by the reading module 136, so as to provide a better touch sensing experience in accordance with the user's operation method.

Please refer to FIG. 2, FIG. 3 and FIG. 4. FIG. 4 is a timing diagram of the signal of the driving circuit 100a of FIG. 2 of an embodiment of the present disclosure. As shown in FIG. 4, when the driving signal S1 is at a high logic level, the driving signal S2 is at a low logic level and the driving signal S3 (not shown) is at a low logic level. In this case, the driving signal S1 is transmitted from the scanning module 132 to at least one light-emitting element 110a1~110a3 and the first electrode 121_1 through the driving line 140_1, so that at least one light-emitting element 110a1~110a3 emits light during the high logic level of the driving signal S1 and charges the first electrode 121_1 at the same time. At this time, if a finger (or foreign object, not shown) touches or approaches the touch sensor 120, causing the enable signal received by the read units Rx_1~Rx_3 to be at a high logic level, the sensing signal can be received through the circuit path from the read lines 160_1~160_3 to the read module 136.

In some embodiments, the pulse width of the driving signal can be regarded as the luminous period of at least one light-emitting element 110a1~110a3, and the enable signal at a high logic level can be regarded as the sensing period of the reading unit Rx_1~Rx_3. It should be noted that in the embodiment of Figure 2, the sensing period overlaps the high logic level period of the driving signal, and the sensing period can be shorter than the high logic level period of the driving signal, so that the sensing period does not overlap the rising edge and falling edge of the driving signal, and thus the sensing signal will not be affected by the pull-up and pull-down of the pulse of the driving signal.

Please refer to FIG. 5, which is a functional block diagram of a driving circuit 100b according to an embodiment of the present disclosure. The driving circuit 100b includes at least one light-emitting element 110a1~110a3, 110b1~110b3 and 110c1~110c3, a control circuit 130, a driving line 140_1~140_3, a data line 150_1~150_3, a read line 160_1~160_3 and a first electrode 121a1~121a3, 121b1~121b3 and 121c1~121c3. The control circuit 130 includes a scanning module 132, an output module 134, a read module 136 and a plurality of pins P0.

The touch sensor 120 in FIG. 1 can be implemented by any one of the first electrodes 121a1~121a3, 121b1~121b3 and 121c1~121c3 in FIG. 5.

Compared with the driving circuit 100a in the embodiment of FIG. 2, the driving circuit 100b in the embodiment of FIG. 5 is different in that the first electrode in the driving circuit 100b adopts self-capacitance sensing instead of mutual capacitance sensing, so the driving circuit 100b does not have a second electrode, but is composed of first electrodes 121a1~121a3, 121b1~121b3 and 121c1~121c3. The first electrodes 121a1~121a3, 121b1~121b3 and 121c1~121c3 can be implemented by metal materials (for example, molybdenum aluminum molybdenum, copper, silver, titanium, etc.) or transparent conductive materials (for example, indium tin oxide, zinc oxide, graphene, etc.).

In terms of structure, the first electrodes 121a1-121a3 are electrically connected in series with each other along the second direction D2. The first electrodes 121b1-121b3 are electrically connected in series with each other along the second direction D2. The first electrodes 121c1-121c3 are electrically connected in series with each other along the second direction D2.

The driving line 140_1 is electrically coupled to the first end of at least one light-emitting element 110a1~110a3 and the first end of the first electrode 121a1, and the driving line 140_1 is electrically coupled to the scanning module 132 through the pin P0. The scanning module 132 provides a driving signal S1 to the driving line 140_1 to drive at least one light-emitting element 110a1~110a3 to emit light and charge the first electrode 121a1~121a3.

The driving line 140_2 is electrically coupled to the first end of at least one light-emitting element 110b1~110b3 and the first end of the first electrode 121b1, and the driving line 140_2 is electrically coupled to the scanning module 132 through the pin P0. The scanning module 132 provides a driving signal S2 to the driving line 140_2 to drive at least one light-emitting element 110b1~110b3 to emit light and charge the first electrodes 121b1~121b3.

The driving line 140_3 is electrically coupled to the first end of at least one light-emitting element 110c1~110c3 and the first end of the first electrode 121c1, and the driving line 140_3 is electrically coupled to the scanning module 132 through the pin P0. The scanning module 132 provides a driving signal S3 to the driving line 140_3 to drive at least one light-emitting element 110c1~110c3 to emit light and charge the first electrodes 121c1~121c3.

The data line 150_1 is electrically coupled to the second end of at least one light-emitting element 110a1, 110b1, and 110c1, and the data line 150_1 is electrically coupled to the output module 134 through the pin P0. The output module 134 provides data signals Q1-Q3 to the data lines 150_1-150_3 to control the brightness or light intensity of at least one light-emitting element 110a1-110a3, 110b1-110b3, or 110c1-110c3.

The read line 160_1 is electrically coupled to the first electrode 121a1, 121b1, and 121c1. The read line 160_1 is used to receive a sensing signal from the first electrode 121a1, 121b1, or 121c1. The read line 160_2 is electrically coupled to the first electrode 121a2, 121b2, and 121c2. The read line 160_2 is used to receive a sensing signal from the first electrode 121a2, 121b2, or 121c2. The read line 160_3 is electrically coupled to the first electrode 121a3, 121b3, and 121c3. The read line 160_3 is used to receive a sensing signal from the first electrode 121a3, 121b3, or 121c3.

It is worth noting that multiple resistors R0 are respectively connected in series between the first electrodes, for example, between the first electrodes 121a1 and 121a2, between the first electrodes 121a2 and 121a3, between the first electrodes 121b1 and 121b2, or between the first electrodes 121c1 and 121c2. In some embodiments, the resistor R0 may have a higher resistance value, so that when a finger (or a foreign object, not shown) touches or approaches the touch sensor 120, after receiving and judging the logical level of the enable signal transmitted by Rx1~Rxn, the touch position will not be incorrectly judged.

The other detailed connection relationships of the driving circuit 100b are roughly the same as those of the driving circuit 100a in the embodiment of Figure 2, and the control circuit 130 in the driving circuit 100b can also be implemented by the control circuit 130 in Figure 3, which will not be further described here.

Please refer to Figures 3, 5 and 6 together. Figure 6 is a timing diagram of the signal of the driving circuit 100b of Figure 5 of an embodiment of the present disclosure. As shown in Figure 6, the time periods P1 and P2 of the driving circuit 100b can be divided into a scanning period TP1 (i.e., a period during which the light-emitting element receives a signal and emits light), a sensing period TP2, and a reset period TP3. Moreover, the scanning period TP1 (light-emitting period) does not overlap the sensing period TP2.

During the scanning period TP1 of the time cycle P1 (i.e., the period during which the light-emitting element receives a signal and emits light), the driving signal S1 is at a high logic level, the driving signal S2 is at a low logic level, and the enabling signal of the reading unit Rx_1~Rx_3 and the ground control signal (reset signal) are at a low logic level. In this case, the driving signal S1 is transmitted from the scanning module 132 to at least one light-emitting element 110a1~110a3 and the first electrode 121a1~121a3 through the driving line 140_1, so that at least one light-emitting element 110a1~110a3 emits light during this period and charges the first electrode 121a1~121a3 at the same time.

During the sensing period TP2 of the time period P1, if a finger (or a foreign object, not shown) touches or approaches the touch sensor 120, the enable signal received by the read units Rx_1~Rx_3 will be at a high logic level, and the enable signal is then transmitted to the read module 136, thereby obtaining the sensing signal from the first electrodes 121a1~121a3.

During the reset period TP3 of the time period P1, a ground control signal (reset signal) is used to ground the readout units Rx_1~Rx_3, that is, the circuit path from the readout lines 160_1~160_3 to the ground end (not shown) is turned on, thereby resetting the potential of the first electrodes 121a1~121a3.

Please refer to Figure 7 and Figure 8. Figure 7 and Figure 8 are schematic diagrams of a light-emitting element lamp board of an embodiment of the present disclosure. In some embodiments, a plurality of at least one light-emitting elements 110 are disposed on the lamp board, with a distance of 2 to 10 mm between each other. Therefore, a touch sensor 120 can be disposed between the distances between the plurality of at least one light-emitting elements 110.

The driving circuits 100, 100a, and 100b of the disclosed document integrate at least one light-emitting element 110 and the driving line 140 of the touch sensor 120, thereby greatly reducing the wiring area and reducing the pins of the control circuit 130, and the driving signal has a high-current pulse that can quickly charge the touch sensor 120. Furthermore, by controlling the light-emitting period of at least one light-emitting element 110 and the sensing period of the touch sensor 120, the signal interference caused to the touch sensor 120 when driving at least one light-emitting element 110 to emit light is reduced, thereby improving the touch sensing accuracy.

Although this case has been disclosed as an implementation method as above, it does not limit this case. Anyone familiar with this technology can make various changes and embellishments without departing from the spirit and scope of this case. Therefore, the scope of protection of this case shall be based on the scope of the patent application attached below.

In order to make the above and other purposes, features, advantages and embodiments of this disclosure more clearly understood, the attached symbols are explained as follows:

100,100a,100b: driving circuit

110,100a1~100a3,100b1~100b3,100c1~100c3: at least one light-emitting element

120: Touch sensor

121_1~121_3,121a1~121a3,121b1~121b3,121c1~121c3: first electrode

122_1~122_3: Second electrode

130: Control circuit

132: Scanning module

134: Output module

136: Read module

136a:Analog-to-digital conversion circuit

136b: Reading circuit

140,140_1~140_3: drive line

150,150_1~150_3: Data line

160,160_1~160_3: Reading line

170: Control module

171: Touch processing unit

172: Interface module

173:Memory storage module

174: Data and timing processing module

175: Light-emitting element driver module

176: Light-emitting element control module

177: Touch drive module

DSP: Digital signal processing circuit

ADC: Analog-to-digital converter

Rx_1~Rx_n: reading unit

S1, S2, S3: driving signal

Q1, Q2, Q3: data signal

P0: pin

D1: First direction

D2: Second direction

P1, P2: time period

TP1: Scanning period

TP2: Sensing cycle

TP3: Reset cycle

In order to make the above and other purposes, features, advantages and embodiments of the present disclosure more clearly understandable, the attached drawings are described as follows: FIG. 1 is a circuit architecture diagram of a driving circuit of an embodiment of the present disclosure. FIG. 2 is a circuit architecture diagram of a driving circuit of an embodiment of the present disclosure. FIG. 3 is a functional block diagram of a driving circuit according to an embodiment of the present disclosure. FIG. 4 is a timing diagram of a signal of a driving circuit of FIG. 2 of an embodiment of the present disclosure. FIG. 5 is a functional block diagram of a driving circuit according to an embodiment of the present disclosure. FIG. 6 is a timing diagram of a signal of a driving circuit of FIG. 5 of an embodiment of the present disclosure. FIG. 7 and FIG. 8 are schematic diagrams of a light-emitting element lamp board of an embodiment of the present disclosure.

Domestic storage information (please note in the order of storage institution, date, and number) None Foreign storage information (please note in the order of storage country, institution, date, and number) None

100:Drive circuit

110: At least one light-emitting element

120: Touch sensor

130: Control circuit

132: Scanning module

134: Output module

136: Read module

140: Drive line

150: Data line

160: Read line

S1: driving signal

Q1: Data signal

P0: pin

Claims (16)

A driving circuit includes: at least one light-emitting element; a driving line electrically coupled to a first end of the at least one light-emitting element; a data line electrically coupled to a second end of the at least one light-emitting element; a touch sensor, wherein the driving line is electrically coupled to the first end of the touch sensor; and a reading line electrically coupled to the second end of the touch sensor, wherein the reading line is electrically isolated from the data line. A driving circuit as described in claim 1, wherein the touch sensor comprises: a first electrode arranged along a first direction and electrically coupled to the driving line; and a second electrode arranged along a second direction and electrically coupled to the reading line, wherein the second direction is different from the first direction; wherein, within the visible area, the first electrode and the second electrode are electrically insulated. The driving circuit as described in claim 2 further includes a control circuit electrically coupled to the driving line and the reading line, wherein the control circuit is used to: provide a driving signal to the driving line during a light-emitting period, the driving signal drives the at least one light-emitting element through the driving line and charges the touch sensor at the same time; and receive a sensing signal from the touch sensor along the reading line during a sensing period, wherein the light-emitting period overlaps the sensing period. A driving circuit as described in claim 3, wherein the control circuit is electrically coupled to the data line, and the control circuit is further used to: provide a data signal via the data line to the at least one light-emitting element, so that the at least one light-emitting element emits light according to the data signal and the driving signal during the light-emitting period. A driving circuit as described in claim 3, wherein the sensing period is shorter than the luminescence period, and the luminescence period is the pulse width of the driving signal, so that the sensing period does not overlap the rising edge and the falling edge of the driving signal. A driving circuit as described in claim 1, wherein the touch sensor comprises: A first electrode, a first end of which is electrically coupled to the driving line, and a second end of which is electrically coupled to the reading line. A driving circuit as described in claim 6, wherein the driving circuit sequentially operates in a light-emitting period, a sensing period, and a reset period, and the driving circuit further comprises a control circuit, wherein the control circuit is used to: provide a driving signal to the driving line during the light-emitting period to drive the at least one light-emitting element and charge the touch sensor; and receive a sensing signal from the touch sensor along the read line during the sensing period; and provide a reset signal to the touch sensor along the read line during the reset period to reset the potential of the touch sensor. A driving method for operating a driving circuit, wherein the driving circuit includes at least one light-emitting element and a touch sensor, wherein the first end of the at least one light-emitting element and the first end of the touch sensor are electrically coupled, and the second end of the at least one light-emitting element and the second end of the touch sensor are electrically isolated, wherein the driving method includes: During a light-emitting period, providing a driving signal to the first end of the at least one light-emitting element and the first end of the touch sensor to drive the at least one light-emitting element to emit light and charge the touch sensor; and During a sensing period, receiving a sensing signal from the second end of the touch sensor, wherein the light-emitting period overlaps the sensing period. A driving method as described in claim 8, wherein the sensing period is shorter than the luminescence period, and the luminescence period is the pulse width of the driving signal, so that the sensing period does not overlap the rising edge and the falling edge of the driving signal. A driving method for operating a driving circuit, wherein the driving circuit includes at least one light-emitting element and a touch sensor, wherein the first end of the at least one light-emitting element and the first end of the touch sensor are electrically coupled, and the second end of the at least one light-emitting element and the second end of the touch sensor are electrically isolated, wherein the driving method includes: During a light-emitting period, providing a driving signal to the first end of the light-emitting element and the first end of the touch sensor to drive the at least one light-emitting element to emit light and charge the touch sensor; During a sensing period, receiving a sensing signal from the second end of the touch sensor; and During a reset period, providing a reset signal to the second end of the touch sensor to reset the potential of the touch sensor. A driving method as described in claim 10, wherein the driving circuit operates sequentially during the light emitting period, the sensing period, and the reset period. A driving circuit comprises: At least one first light-emitting element; At least one second light-emitting element; At least one third light-emitting element; A plurality of driving lines, the driving lines comprising a first driving line electrically coupled to the first end of the at least one first light-emitting element, a second driving line electrically coupled to the first end of the at least one second light-emitting element, and a third driving line electrically coupled to the first end of the at least one third light-emitting element; A plurality of data lines, electrically coupled to the second end of the at least one first light-emitting element, the second end of the at least one second light-emitting element, and the second end of the at least one third light-emitting element, respectively; and A plurality of first electrodes, wherein the first drive line is electrically coupled to a first one of the first electrodes, the second drive line is electrically coupled to a second one of the first electrodes, and the third drive line is electrically coupled to a third one of the first electrodes. The driving circuit as described in claim 12 further comprises: a plurality of read lines; and a plurality of second electrodes, the second electrodes being electrically coupled to the read lines respectively, wherein the first electrodes are arranged along a first direction, the second electrodes are arranged along a second direction, and the first direction is different from the second direction. The driving circuit as described in claim 13 further includes a control circuit, wherein the control circuit is used to: provide a driving signal to the first driving line during a light-emitting period, wherein the driving signal drives the at least one first light-emitting element to emit light through the first driving line and simultaneously charges the first of the first electrodes; and receive a plurality of sensing signals from the second electrodes respectively during a sensing period, wherein the light-emitting period overlaps the sensing period. The driving circuit as described in claim 12 further comprises: A first read line electrically coupling the first of the first electrodes, the second of the first electrodes, and the third of the electrodes. The driving circuit as described in claim 15 further comprises: a second read line electrically coupled to a fourth of the first electrodes, a fifth of the first electrodes, and a sixth of the electrodes; a first resistor electrically coupled between the first of the first electrodes and the fourth of the electrodes; a second resistor electrically coupled between the second of the first electrodes and the fifth of the electrodes; and a third resistor electrically coupled between the third of the first electrodes and the sixth of the electrodes.

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