TWI601051B - Sensing circuit and sensing method - Google Patents

Description

Sensing circuit and sensing method

The invention relates to a data processing circuit and a data processing method, in particular to a sensing circuit and a sensing method.

With the rapid development of touch sensing technology, touch sensing technology is widely used in electronic devices as a touch input interface. For example, direct contact with the human body (eg, a finger) or indirect contact through an input tool (eg, a stylus) to transmit commands to the electronic device via the touch input interface. In order to ensure the normal operation of the above touch input interface, the resolution of the sensing circuit in the touch input interface must be maintained above a certain level. However, if the resolution of the sensing circuit is to be maintained, the area of the sensing electrode in the sensing circuit will be limited, making it difficult to reduce the area of the sensing circuit. For example, when the area of the sensing electrode is reduced, the capacitance value sensed by the sensing circuit via the touch will be reduced, thereby making it difficult to determine whether the touch occurs or not.

Therefore, how to effectively maintain the touch sensing resolution and reduce the area of the sensing circuit to design the sensing circuit is a big challenge.

One aspect of the present disclosure relates to a sensing circuit, and the sensing circuit includes a first electrode, a second electrode, a third electrode, and a fourth electrode. The first electrode is configured to receive the sensing signal, and the first electrode is disposed according to the first column direction and the first row direction, and is connected through the first odd column scan line. The second electrode is configured to receive the sensing signal or trigger the first electrode to enable the first electrode to receive the sensing signal, and the second electrode is disposed according to the first column direction and the second row direction, and is connected through the second odd column scanning line. The third electrode is configured to receive the sensing signal, and the third electrode is disposed according to the second column direction and the second row direction, and is connected through the first even column scan line. The fourth electrode is configured to receive the sensing signal or trigger the third electrode to enable the third electrode to receive the sensing signal, and the fourth electrode is disposed according to the second column direction and the first row direction, and is connected through the second even column scanning line.

Another aspect of the present disclosure relates to a sensing method applied to the above sensing circuit, and the sensing method includes the steps of: transmitting a first odd column scan line and a second odd column scan line in a first period; Scanning the first electrode and the second electrode; and scanning the third and fourth electrodes through the first even column scan line and the second even column scan line in the second period.

In summary, the technical solution of the present invention has obvious advantages and beneficial effects compared with the prior art. With the above technical solution, considerable technological progress can be achieved, and the industrial use value is widely used. The sensing circuit and the sensing method disclosed by the present invention are combined with self-capacitive sensing technology and mutual capacitance sensing technology. For touch sensing, the advantages of self-capacitance sensing technology and mutual capacitance sensing technology can be combined at the same time (for example, mutual capacitance sensing technology has strong edge sensing amount, and self-contained feeling The measurement technology has a strong vertical plane inductance), thereby effectively maintaining the touch sensing resolution and reducing the sensing circuit area. In addition, when In the mutual capacitance sensing, since the sensing circuit and the sensing method disclosed in the present invention sense different electrodes to receive the sensing signal through the meandering manner, the sensing circuit and the sensing method disclosed by the present invention are disclosed. Only half of the electrodes need to be driven at the same time, which greatly reduces power consumption.

100‧‧‧Sensor circuit

102‧‧‧Scan drive

110‧‧‧First column direction

111‧‧‧First line direction

112‧‧‧First electrode

114‧‧‧second electrode

120‧‧‧Second column direction

121‧‧‧Second line direction

122‧‧‧ third electrode

124‧‧‧fourth electrode

400‧‧‧Sensor method

S401~S406‧‧‧Steps

D[0], D[1], D[2]‧‧‧ transmission lines

Gr1, Gt1, Gr3, Gt3‧‧‧ odd column scan lines

Gr2, Gt2‧‧‧ even column scan line

S[0], S[1], S[2]‧‧‧ receiving lines

1A is a circuit diagram of a sensing circuit according to an embodiment of the present invention; FIG. 1B is a schematic diagram of a clock signal of a sensing circuit according to an embodiment of the present invention; 2C, 2E, 2G are diagrams showing the operation of the sensing circuit according to the embodiment of the present invention; FIGS. 2B, 2D, 2F, and 2H are diagrams showing the sensing circuit according to the disclosed embodiment of the present invention. FIG. 3A, 3C, 3E, and 3G are schematic diagrams showing the operation of the sensing circuit according to the embodiment of the present disclosure; FIGS. 3B, 3D, 3F, and 3H are diagrams according to the disclosed embodiment of the present invention; A schematic diagram of the clock signal of the sensed circuit in operation; and FIG. 4 is a flow chart of the sensing method drawn in accordance with an embodiment of the present disclosure.

The following is a detailed description of the embodiments with reference to the drawings, to The invention is not to be construed as limiting the scope of the disclosure, and the description of structural operations is not intended to limit the order of execution, any structure that is recombined by the elements. Devices having equal efficiency are covered by the disclosure. In addition, according to industry standards and practices, the drawings are only for the purpose of assisting the description, and are not drawn according to the original size. In fact, the dimensions of the various features may be arbitrarily increased or decreased for convenience of explanation. In the following description, the same elements will be denoted by the same reference numerals for convenience of understanding.

The terms used in the entire specification and the scope of the patent application, unless otherwise specified, generally have the ordinary meaning of each term used in the field, the content disclosed herein, and the particular content. Certain terms used to describe the present disclosure are discussed below or elsewhere in the specification to provide additional guidance to those skilled in the art in the description of the present disclosure.

In addition, the terms "including", "including", "having", "containing", and the like, which are used in the present invention, are all open terms, that is, "including but not limited to".

In the present invention, when an element is referred to as "connected" or "coupled", it may mean "electrically connected" or "electrically coupled". "Connected" or "coupled" can also be used to indicate that two or more components operate or interact with each other. Further, although the terms "first", "second", and the like are used in the present invention to describe different elements, the terms are used to distinguish the elements or operations described in the same technical terms. The use of the term is not intended to be a limitation or a

FIG. 1A is a circuit diagram of a sensing circuit 100 according to an embodiment of the present disclosure, and FIG. 1B is an implementation according to the present disclosure. The clock signal diagram of the sensing circuit in the example is operated. As shown in FIG. 1A, the sensing circuit 100 includes a first electrode 112, a second electrode 114, a third electrode 122, and a fourth electrode 124. The first electrode 112 is disposed according to the first column direction 110 and the first row direction 111, and each of the first electrodes 112 is connected through the first odd column scan line Gr1. The second electrode 114 is disposed according to the first column direction 110 and the second row direction 121, and each of the second electrodes 114 is connected through the second odd column scan line Gt1. The third electrode 122 is disposed according to the second column direction 120 and the second row direction 121, and each of the third electrodes 122 is connected through the first even column scan line Gr2. The fourth electrode 124 is disposed according to the second column direction 120 and the first row direction 111, and each of the fourth electrodes 124 is connected through the second even column scan line Gt2.

For example, the first column direction 110 may be one of an odd column direction or an even column direction, and the second column direction 120 may be a column direction with respect to the first column direction 110. In other words, when the first column direction 110 is an odd column direction, the second column direction 120 is an even column direction. Accordingly, the first row direction 111 may be one of an odd row direction or an even row direction, and the second row direction 121 may be a row direction with respect to the first row direction 111. In other words, when the first row direction 111 is an odd row direction, the second row direction 121 is an even row direction. In this embodiment, as shown in FIG. 1A, the first electrode 112 is disposed according to the odd column direction and the odd row direction, the second electrode 114 is disposed according to the odd column direction and the even row direction, and the third electrode 122 is according to the even column. The direction is set with the even row direction, and the fourth electrode 124 is disposed in accordance with the even column direction and the odd row direction. In one embodiment, the first electrode 112 and the third electrode 122 are zigzag, and the second electrode 114 and the fourth electrode 124 are zigzag.

The first electrode 112, the second electrode 114, the third electrode 122, and the fourth electrode 124 are both configured to receive an inductive signal. For example, when self-capacitance sensing is performed through the sensing circuit 100, the first electrode 112 and the second electrode 114 in the first column direction 110 and the third electrode 122 in the second column direction 120 are sequentially scanned. The fourth electrode 124 receives the sensing signals respectively, thereby completing self-capacitance sensing. In this embodiment, as shown in FIG. 1A, the first column direction 110 is an odd column direction, the second column direction 120 is an even column direction, and the sensing circuit 100 has four columns. Therefore, when self-capacitance sensing is performed through the sensing circuit 100, the first electrode 112 and the second electrode 114 in the first column, the third electrode 122 and the fourth electrode 124 in the second column are sequentially scanned, and The first electrode 112 and the second electrode 114 in the three columns and the third electrode 122 and the fourth electrode 124 in the fourth column respectively receive the sensing signals.

In an embodiment, the second electrode 114 is further configured to trigger the first electrode 112 to receive the sensing signal by the first electrode 112. For example, when the mutual sensing is performed through the sensing circuit 100, the second electrodes 114 in the first column direction 110 are sequentially transmitted through the second electrodes 114 in the first column direction 110 to obtain the first electrode 112 in the first column direction 110. The sensing signal received by an electrode 112. Similarly, the fourth electrode 124 is further configured to trigger the third electrode 122 to cause the third electrode 122 to receive the sensing signal. For example, when the mutual sensing is performed through the sensing circuit 100, the third electrode 122 in the second column direction 120 is sequentially transmitted through the different fourth electrodes 124 in the second column direction 120, thereby obtaining the first The sensing signal received by the three electrodes 122.

In another embodiment, the second electrode 114 is further configured to trigger the third electrode 122 to cause the third electrode 122 to receive the sensing signal. For example, when When the sensing circuit 100 performs mutual capacitive sensing, the third electrode 122 in the second column direction 120 is triggered by the second electrode 114 in the first column direction 110, thereby obtaining the sensing signal received by the third electrode 122. . Similarly, the fourth electrode 124 is further configured to trigger the first electrode 112 to cause the first electrode 112 to receive the sensing signal. For example, when the mutual sensing is performed through the sensing circuit 100, the first electrode 112 in the first column direction 110 is triggered by the fourth electrode 124 in the second column direction 120, thereby obtaining the first electrode 112. The received inductive signal.

In one embodiment, the sensing circuit 100 further includes a scan driving device 102, and the scan driving device 102 is electrically connected to the first odd column scan line Gr1, the second odd column scan line Gt1, the first even column scan line Gr2, and The second even column scan line Gt2. The scan driving device 102 is configured to scan the first odd-numbered column scan line Gr1 and the second odd-numbered column scan line Gt1 to scan the first electrode 112 and the second electrode 114 in the first period, and transmit the first even-numbered column scan line in the second period. Gr2 and the second even column scan line Gt2 scan the third electrode 122 and the fourth electrode 124. For example, the scan driving device 102 transmits the first odd-numbered column scan line Gr1 and the second odd-numbered column scan line Gt1 to drive the first electrode 112 and the second electrode 114 in the first period, thereby performing self-capacitance sensing or mutual capacitance. The sensing device 102 scans the first even column scan line Gr2 and the second even column scan line Gt2 in the second period to drive the third electrode 122 and the fourth electrode 124 to perform self-capacitance sensing or mutual capacitance. Sensing.

In another embodiment, the sensing circuit 100 further includes a plurality of transmission lines D[0]~D[2] and a plurality of receiving lines S[0]~S[2], and the transmission lines D[0]~D[2 The second electrode 114 and the fourth electrode 124 are electrically connected, and the receiving lines S[0] to S[2] are electrically connected to the first electrode 112 and the third electrode 122. For example, in this embodiment, The first column direction 110 is an odd column direction, the second column direction 120 is an even column direction, and the sensing circuit 100 has four columns. Therefore, as shown in FIG. 1B, when self-capacitance sensing is performed through the sensing circuit 100, the scan driving device 102 transmits the first odd-numbered column scanning lines Gr1 and the second in the first period (ie, time t1 to t2). The odd column scan line Gt1 outputs a high level signal to drive the first electrode 112 and the second electrode 114 in the first column, and transmits through the transmission lines D[0]~D[2] and the receiving lines S[0]~S[2] Outputting the sensing signal, the first electrode 112 and the second electrode 114 in the first column can receive the sensing signal by the above operation; the scanning driving device 102 transmits the first even column in the second period (ie, time t2~t3) The scan line Gr2 and the second even-numbered column scan line Gt2 output a high level signal to drive the third electrode 122 and the fourth electrode 124 in the second column, and pass through the transmission lines D[0]~D[2] and the receiving line S[0 ]~S[2] output sensing signals, by which the third electrode 122 and the fourth electrode 124 in the second column can receive the sensing signal; the scanning driving device 102 is in the third cycle (ie, time t3~t4) Driving the first level electrode 112 in the third column by outputting the high level signal through the third odd column scan line Gr3 and the fourth odd column scan line Gt3 The two electrodes 114 output the sensing signals through the transmission lines D[0]~D[2] and the receiving lines S[0]~S[2], and the first electrodes 112 and the second in the third column are operated by the above operation. The electrode 114 is capable of receiving an inductive signal.

In another embodiment, when the mutual sensing is performed through the sensing circuit 100, and one of the transmission lines D[0]~D[2] is used to provide the trigger signal to the second electrode 114 in the first period. The second electrode 114 is configured to trigger the first electrode 112 to receive the sensing signal by the first electrode 112 and output the sensing signal through the receiving lines S[0]~S[2]. In addition, when mutual sensing is performed through the sensing circuit 100, one of the transmission lines D[0]~D[2] is used to provide a trigger signal in the second period. The fourth electrode 124 is configured to trigger the third electrode 122 to receive the sensing signal and output the sensing signal through the receiving lines S[0]~S[2].

2A, 2C, 2E, 2G are diagrams showing the operation of the sensing circuit 100 in accordance with an embodiment of the present disclosure. 2B, 2D, 2F, and 2H are schematic diagrams showing the clock signals of the sensing circuit 100 in operation according to the embodiment of the present invention. In an embodiment, the specific operations of the mutual capacitive sensing are divided into a horizontal scanning and a vertical scanning, and the specific operation of the horizontal scanning is further divided into a first horizontal scanning and a second horizontal scanning. For example, referring to FIGS. 2A and 2B , when the mutual horizontal scanning is performed by the sensing circuit 100 , the scan driving device 102 transmits the first odd column in the first cycle (ie, time t1 to t2 ). The scan line Gr1 and the second odd-numbered column scan line Gt1 output a high level signal to drive the first electrode 112 and the second electrode 114 in the first column, and provide a trigger signal to the second column in the first column through the transmission line D[1]. Electrode 114. As such, the second electrode 114 receiving the trigger signal in the first column can be used to trigger the first electrode 112 in the first column to receive the sensing signal, and receive the received signal through the receiving lines S[0]~S[2]. The incoming signal.

Referring to FIG. 2C and FIG. 2D, when the first horizontal scanning of the mutual capacitance type is performed through the sensing circuit 100, the scan driving device 102 transmits the first even-numbered column scanning line Gr2 in the second period (ie, time t2 to t3). And the second even-numbered column scan line Gt2 outputs a high-level signal to drive the third electrode 122 and the fourth electrode 124 in the second column, and provides a trigger signal to the fourth electrode 124 in the second column through the transmission line D[1]. In this way, the fourth electrode 124 receiving the trigger signal in the second column can be used to trigger the third electrode 122 in the second column to receive the sensing signal and pass through The receiving lines S[0]~S[2] output the received sensing signals.

Referring to FIGS. 2E and 2F again, when the second horizontal scanning of the mutual capacitance type is performed through the sensing circuit 100, the scan driving device 102 transmits the first odd-numbered column scanning line Gr1 in the first period (ie, time t1 to t2). And outputting a high level signal to the second odd column scan line Gt1 to drive the first electrode 112 and the second electrode 114 in the first column, and providing the trigger signal to the first column through the transmission lines D[0], D[2] The second electrode 114. As such, the second electrode 114 receiving the trigger signal in the first column can be used to trigger the first electrode 112 in the first column to receive the sensing signal, and receive the received signal through the receiving lines S[0]~S[2]. The incoming signal.

Referring to FIG. 2G and FIG. 2H, when the second horizontal scanning of the mutual capacitance type is performed through the sensing circuit 100, the scan driving device 102 transmits the first even-numbered column scanning line Gr2 in the second period (ie, time t2 to t3). And the second even-numbered column scan line Gt2 outputs a high level signal to drive the third electrode 122 and the fourth electrode 124 in the second column, and provides the trigger signal to the second column through the transmission lines D[0], D[2]. The fourth electrode 124. Thus, the fourth electrode 124 receiving the trigger signal in the second column can be used to trigger the third electrode 122 in the second column to receive the sensing signal, and receive the received signal through the receiving lines S[0]~S[2]. The incoming signal.

Correspondingly, the first horizontal scanning and the second horizontal scanning of the mutual capacitive type can be implemented in the first electrode 112 and the second electrode 114 in the third column, and the third electrode in the fourth column according to the manner exemplified in the above embodiment. 122 and fourth electrode 124. It should be understood that although the sensing circuit 100 in this embodiment has five rows and four columns, the present invention is not limited thereto. For example, the number of rows and columns of the sensing circuit 100 can be flexibly adjusted according to the requirements of the implementation operation.

3A, 3C, 3E, and 3G are schematic diagrams showing the operation of the sensing circuit 100 according to the embodiment of the present invention, and the 3B, 3D, 3F, and 3H drawings are based on the disclosed embodiments. A schematic diagram of the clock signal of the circuit 100 during operation. In an embodiment, the specific operations of the mutual capacitive sensing are divided into horizontal scanning and vertical scanning. For example, referring to FIGS. 3A and 3B, when the mutual scanning vertical scanning is performed through the sensing circuit 100, the scan driving device 102 transmits the second odd-numbered column scanning lines in the first period (ie, time t1 to t2). Gt1 and the first even column scan line Gr2 output a high level signal to drive the second electrode 114 in the first column and the third electrode 122 in the second column, and provide a trigger signal through the transmission lines D[0]~D[2] To the second electrode 114 in the first column. As such, the second electrode 114 receiving the trigger signal in the first column can be used to trigger the third electrode 122 in the second column to receive the sensing signal and receive the received signal through the receiving lines S[0]~S[2]. The incoming signal.

Referring to FIGS. 3C and 3D again, when the mutual scanning vertical scanning is performed through the sensing circuit 100, the scan driving device 102 transmits the first odd-numbered column scanning lines Gr1 and the second period in the second period (ie, time t2 to t3). The two even column scan line Gt2 outputs a high level signal to drive the first electrode 112 in the first column and the fourth electrode 124 in the second column, and provides a trigger signal to the second through the transmission lines D[0]~D[2] The fourth electrode 124 in the column. In this way, the fourth electrode 124 receiving the trigger signal in the second column can be used to trigger the first electrode 112 in the first column to receive the sensing signal, and receive the received signal through the receiving lines S[0]~S[2]. The incoming signal.

Referring to FIGS. 3E and 3F again, when the mutual scanning vertical scanning is performed through the sensing circuit 100, the scan driving device 102 transmits the second even-numbered column scanning line Gt2 and the third period in the third period (ie, time t3 to t4). Three odd-numbered column scan line Gr3 loss Driving the high level signal to drive the fourth electrode 124 in the second column and the first electrode 112 in the third column, and providing the trigger signal to the fourth electrode in the second column through the transmission lines D[0]~D[2] 124. In this way, the fourth electrode 124 receiving the trigger signal in the second column can be used to trigger the first electrode 112 in the third column to receive the sensing signal, and receive the received signal through the receiving lines S[0]~S[2]. The incoming signal.

Referring to FIGS. 3G and 3H, when the mutual scanning vertical scanning is performed through the sensing circuit 100, the scan driving device 102 transmits the first even-numbered column scanning line Gr2 and the fourth period in the fourth period (ie, time t4 to t5). The four odd-numbered column scan lines Gt3 output a high level signal to drive the third electrode 122 in the second column and the second electrode 114 in the third column, and provide a trigger signal to the third through the transmission lines D[0]~D[2] The second electrode 114 in the column. Thus, the second electrode 114 receiving the trigger signal in the third column can be used to trigger the third electrode 122 in the second column to receive the sensing signal, and receive the received signal through the receiving line S[0]~S[2]. The incoming signal.

FIG. 4 is a flow diagram of a sensing method 400 rendered in accordance with an embodiment of the present disclosure. In an embodiment, the sensing method 400 can be implemented in the sensing device 100, but the invention is not limited thereto. In order to facilitate the understanding of the sensing method 400, the sensing device 100 will be exemplified as an exemplary implementation of the sensing method 400. As shown in FIG. 4, the sensing method 400 includes the following steps: S401: transmitting the first odd-numbered column scan line Gr1 and the second odd-numbered column scan line Gt1 in the first period to scan the first electrode 112 and the second electrode 114; S402: Scan the third electrode 122 and the fourth electrode 124 through the first even column scan line Gr2 and the second even column scan line Gt2 in the second period.

In this embodiment, when self-capacitance sensing is performed through the sensing circuit 100, the scan driving device 102 transmits the first odd-numbered column scan line in the first period. Gr1 and the second odd-numbered column scan line Gt1 output a high level signal to drive the first electrode 112 and the second electrode 114 in the first column to receive the sensing signal, and transmit the transmission line D[0]~D[2] and the receiving line S. [0]~S[2] output the sensing signal; the scan driving device 102 outputs the high level signal through the first even column scanning line Gr2 and the second even column scanning line Gt2 in the second period to drive the third electrode 122 and the fourth electrode 124 receives the sensing signal and outputs the sensing signal through the transmission lines D[0]~D[2] and the receiving lines S[0]~S[2].

In one embodiment, the sensing method 400 further includes the following steps: S403: triggering the second electrode 114 through one of the plurality of transmission lines D[0]~D[1] in the third period, and transmitting the first odd column Scanning line Gr1 and second odd-numbered column scan line Gt1 for scanning the first electrode 112; and S404: transmitting the fourth electrode 124 through one of the plurality of transmission lines D[0]~D[1] in the fourth period, and transmitting The first even column scan line Gr2 and the second even column scan line Gt2 scan the third electrode 122.

In this embodiment, when the mutual sensing horizontal scanning is performed through the sensing circuit 100, the scan driving device 102 outputs the high level signal through the first odd column scan line Gr1 and the second odd column scan line Gt1 in the third period. The first electrode 112 and the second electrode 114 in the first column are driven, and the trigger signal is supplied to the second electrode 114 in the first column through one of the transmission lines D[0] to D[2]. As such, the second electrode 114 receiving the trigger signal in the first column can be used to trigger the first electrode 112 in the first column to receive the sensing signal, and receive the received signal through the receiving lines S[0]~S[2]. The sensing signal is transmitted; the scan driving device 102 outputs the high level signal through the first even column scan line Gr2 and the second even column scan line Gt2 in the fourth period to drive the third electrode 122 and the fourth column in the second column. The electrode 124 sequentially transmits a trigger signal to the fourth electrode 124 in the second column through one of the transmission lines D[0] to D[2]. Thus, the fourth electrode 124 receiving the trigger signal in the second column can be used to trigger the third electrode 122 in the second column to receive the sensing signal, and receive the received signal through the receiving lines S[0]~S[2]. The incoming signal.

In another embodiment, the sensing method 400 further includes the following steps: S405: triggering the second electrode 114 through the plurality of transmission lines D[0]~D[1] in the fifth period, and transmitting the second odd-line scanning line Gt1 And scanning the third electrode 122 with the first even column scanning line Gr2; and S406: triggering the fourth electrode 124 through the plurality of transmission lines D[0]~D[1] in the sixth period, and transmitting the first odd column scanning line Gr1 The first electrode 112 is scanned with the second even column scan line Gt2.

In this embodiment, when the mutual sensing vertical scanning is performed through the sensing circuit 100, the scan driving device 102 outputs the high level signal through the second odd column scanning line Gt1 and the first even column scanning line Gr2 in the fifth period. The second electrode 114 in the first column and the third electrode 122 in the second column are driven, and the trigger signal is supplied to the second electrode 114 in the first column through the transmission lines D[0]~D[2]. As such, the second electrode 114 receiving the trigger signal in the first column can be used to trigger the third electrode 122 in the second column to receive the sensing signal and receive the received signal through the receiving lines S[0]~S[2]. The sensing signal is obtained; the scan driving device 102 outputs the high level signal through the first odd column scan line Gr1 and the second even column scan line Gt2 in the sixth period to drive the first electrode 112 and the second column in the first column. The fourth electrode 124 provides a trigger signal to the fourth electrode 124 in the second column through the transmission lines D[0]~D[2]. So, the fourth column in the second column receives the trigger signal. The pole 124 can be used to trigger the first electrode 112 in the first column to receive the sensing signal, and output the received sensing signal through the receiving lines S[0]~S[2].

In another embodiment, referring to step S406, the fourth electrode 124 is triggered through the plurality of transmission lines D[0]~D[1] in the sixth period, and the first odd column scan line Gr1 and the second even column are transmitted. After scanning the first electrode 112, the scanning line Gt2 further passes through the second even-numbered column scanning line Gt2 and the third odd-numbered column scanning line Gr3 to scan the fifth electrode. The fifth electrode is disposed according to the first column direction 110 and the first row direction 111, and the fifth electrode and the first electrode 112 are respectively disposed on different columns. In this embodiment, the fifth electrode is the first electrode 112 in the third column. Therefore, the first electrode 112 in the first column is scanned through the first odd column scan line Gr1 and the second even column scan line Gt2. After that, the fourth electrode 124 in the second column can be directly triggered through the plurality of transmission lines D[0]~D[1], thereby scanning the third column through the second even column scan line Gt2 and the third odd column scan line Gr3. The first electrode 112 in the middle.

In the above embodiments, the sensing circuit and the sensing method disclosed in the present invention are combined with self-capacitive sensing technology and mutual capacitance sensing technology for touch sensing, so that the self-capacity can be simultaneously combined. The advantages of sensing technology and mutual capacitance sensing technology (for example, mutual capacitive sensing technology has strong edge sensing, while self-capacitive sensing technology has strong vertical plane sensing), thus effectively maintaining The touch sensing resolution is reduced and the sensing circuit area is reduced. In addition, when the mutual capacitance sensing is performed, since the sensing circuit and the sensing method disclosed in the present invention sense different electrodes to receive the sensing signals through the meandering manner, the sensing circuit disclosed in the present invention The sensing method only needs to drive half of the electrodes at the same time, thereby greatly reducing power consumption.

Those skilled in the art will readily appreciate that the disclosed embodiments achieve the advantages of one or more of the foregoing examples. After reading the foregoing description, those skilled in the art will be able to make various modifications, substitutions, equivalents, and various other embodiments. Therefore, the scope of protection of the present invention is defined by the scope of the patent application and its equal scope.

100‧‧‧Sensor circuit

102‧‧‧Scan drive

110‧‧‧First column direction

111‧‧‧First line direction

112‧‧‧First electrode

114‧‧‧second electrode

120‧‧‧Second column direction

121‧‧‧Second line direction

122‧‧‧ third electrode

124‧‧‧fourth electrode

Gr1, Gt1, Gr3, Gt3‧‧‧ odd column scan lines

Gr2, Gt2‧‧‧ even column scan line

Claims (10)

A sensing circuit includes: a plurality of first electrodes for receiving an inductive signal, wherein the first electrodes are disposed according to a first column direction and a first row direction, and are transmitted through a first odd column scan line phase a plurality of second electrodes for receiving the sensing signals or for triggering the first electrodes to receive the sensing signals, wherein the second electrodes are in accordance with the first column direction and a second row direction And a plurality of third electrodes for receiving the sensing signals, wherein the third electrodes are disposed according to a second column direction and the second row direction, and are The first even-numbered column scan lines are connected; the plurality of fourth electrodes are configured to receive the sensing signals or trigger the third electrodes to enable the third electrodes to receive the sensing signals, wherein the fourth electrodes are in accordance with the second column direction And the first row direction is connected, and is connected through a second even column scan line; and the plurality of transmission lines are electrically connected to the second electrodes and the fourth electrodes; wherein when the sensing circuit is performed When sensing capacitance, the plurality of transmission line providing at least one trigger signal sequence in each period of the law. The sensing circuit of claim 1, wherein the first electrodes and the third electrodes are arranged in a meandering manner, and the second electrodes and the fourth electrodes are arranged in a meandering manner. The sensing circuit of claim 2, wherein the second electrodes are further configured to trigger the third electrodes to receive the sensing signals, and the fourth electrodes are further configured to trigger the first The electrodes are such that the first electrodes receive the sensing signals. The sensing circuit of claim 3, further comprising: a scan driving device electrically connected to the first odd column scan line, the second odd column scan line, the first even column scan line, and the second The scan line is evenly arranged to pass through the first odd column scan line and the second odd column scan line to scan the first electrodes and the second electrodes in a first period, and transmit the first electrodes and the second electrodes in a second period The first even column scan line and the second even column scan line scan the third electrodes and the fourth electrodes. The sensing circuit of claim 4, further comprising: a plurality of receiving lines electrically connected to the first electrodes and the third electrodes, wherein one of the transmission lines is used for the first period The second electrodes are configured to trigger the first electrodes to receive the sensing signals, and output the sensing signals through the receiving lines; and when the sensing signals are provided to the second electrodes The fourth electrode is configured to trigger the third electrodes to enable the third electrodes to receive the sensing signals and transmit the sensing signals to the fourth electrodes. Line output sensing signal. A sensing method applied to the sense as described in claim 1 The measuring circuit includes: scanning the first odd column scan line and the second odd column scan line to scan the first electrodes and the second electrodes in a first period; and transmitting the first through a second period The even column scan line and the second even column scan line scan the third electrode and the fourth electrodes. The sensing method of claim 6, further comprising: triggering the second electrodes through one of the transmission lines in a third period, and scanning the second odd column scan line and the second odd column through the first odd column scan line Threading the first electrodes; and triggering the fourth electrodes through one of the transmission lines in a fourth period, and scanning the first even column scan lines and the second even column scan lines Some third electrodes. The sensing method of claim 7, further comprising: triggering the second electrodes through the transmission lines in a fifth period, and scanning the second electrodes through the second odd-numbered scan lines and the first even-numbered scan lines Three electrodes. The sensing method of claim 8, further comprising: triggering the fourth electrodes through the transmission lines in a sixth period, and scanning the plurality of scan lines and the second even column scan lines to scan the first An electrode. The sensing method of claim 9, wherein the fourth electrodes are triggered through the transmission lines during the sixth period, and the first odd column scan lines and the second even column scan lines are transmitted to scan the first ones After the electrode, the plurality of fifth electrodes are scanned through the second even column scan line and the third odd column scan line, wherein the fifth electrodes are disposed according to the first column direction and the first row direction, and the The fifth electrodes and the first electrodes are respectively disposed on different columns.