TW201025107A - Touch panel, touch display panel, and conpacitive touch sensor - Google Patents

Abstract

A capacitive touch sensor has a capacitive sensing circuit and an output control circuit. The capacitive sensing circuit has a sensing capacitor, and a capacitance thereof is determined according to whether or not the touch sensor is touched. In addition, the capacitive sensing circuit outputs a first sensing signal to the output control circuit according to a first and a second control signals. Wherein, duty cycles of the first control signal and the second control signal are in adjacent time interval respectively. Therefore, the output control circuit output a second sensing signal according to the first sensing signal, the first and second control signals for indicating a status of the touch sensor.

Description

201025107 r υ 17 / uu«+dTW 29718twf.doc/n VI. Description of the Invention: [Technical Field] The present invention relates to a touch sensing technology, and more particularly to a capacitive touch Sensing technology for sensor control. [Prior Art] In recent years, touch-sensitive human-machine interfaces, such as touch panels, have been widely used in a wide variety of electronic products, such as: Global Positioning System (GPS), personal digital Assistants (PDAs), cellular phones, and handheld computers (Handheld PCs) replace traditional input devices (such as keyboards and mice). This design has changed dramatically, not only has it improved. The human-machine interface affinity of these electronic devices, because of the omission of the traditional input device, frees up more space for the installation of a large display panel, which is convenient for the user to view the data. The touch panels can be roughly resistive and capacitive, respectively, and the principles of the two are substantially the same. 1A and 1B are schematic diagrams showing the operation principle of a capacitive touch sensor. Referring to FIG. 1A and FIG. 1B together, a plurality of touch sensors can be disposed on a general touch panel. The conventional capacitive touch sensor 100 can be configured with two electrode plates 102 and 1 〇 4, so that a sensing capacitance Cf can be formed, which has a capacitance value. In the initial case, that is, if the touch sensor 100 is not enabled, the overall capacitance value is equal to the capacitance value of the sensing capacitor Cf. ^ When the head 112 or other object of the user touches the touch sensing interface 100, a capacitive effect is generated with the electrode plates 102 and 104 respectively; ^ 3 201025107 roiy/W^〇rW 297l8twf.doc/n Induction capacitors CS1 and CS2. At this time, the capacitance value of the touch sensor 1 is the capacitance value of the sensing capacitor Cf in parallel with the sensing capacitors CS1 and CS2. Therefore, as long as the touch sensor is measured: It can be judged whether the capacitive sensor is enabled. It is also known that there are many techniques for measuring the capacitance variation of the touch sensor. For example, in US Pat. No. 6,518,820, the closed end of the transistor τ is lightly connected to the sensing capacitor 15, and the collector terminal c is coupled to the contact sensor. Turning out the terminal 17, with a voltage signal. Therefore, when the touch sensor is enabled to cause the overall capacitance value to change, the voltage value at the output terminal 17 changes. By this, it is possible to judge whether or not the touch sensor is enabled. Since the USMimO towel measures the voltage signal to determine the state of the touch sensor. However, on a touch panel, a lot of touch sensors are usually configured.绮-touch field should depend on the multi-control sensor. # The more parallel touch sensors, the more the voltage signal output by each touch sensor will be affected. Oh. In addition, since the circuit provided by US6518820 needs to receive the high frequency control signal 13 outputted by the signal source 12, although the power, the middle, and the other are configured with the south pass chopping $, the high frequency control signal I] or each of them is affected by noise, which may cause the entire circuit to malfunction. The surface is disposed on a touch display panel with a plurality of scanning lines, a plurality of scanning lines, and a plurality of common voltage lines. If it is necessary to configure a wire with a high-yield-n-substrate on the panel, the opening of the touch display panel is affected, and the overall manufacturing cost is increased. ί \j t.^ / 2〇1〇251〇Ζτ·„ [Abstract] The present invention provides a capacitive touch sensor comprising a capacitive sensing circuit and an output control circuit. The electric valley sensing circuit has a sensing The capacitance, the gamma value is determined according to whether the touch sensor is touched or not. The capacitor smearing circuit further outputs a first sensing signal to the output control circuit according to the at least one first control signal. The control circuit can output a second sensing signal according to the first sensing signal and the first control signal, which is used to indicate the state of the touch sensor. ❿ From another point of view, the present invention provides a touch The control panel comprises a plurality of touch sensors and a touch processing unit, wherein the touch sensors can be arranged in an array and have a capacitance sensing circuit and an output control circuit respectively. The capacitance sensing circuit has a L彳The capacitance value is based on whether the touch sensor is touched or not. In addition, the capacitance sensing circuit is further controlled by the control signal to the output control circuit. According to the first sensing signal and the 'di-control signal, the second sensing signal is sent to the touch processing unit. The hunting touch field unit can determine whether the touch sensing H is touched by the time signal. 4 4 scoops include 3 sweeps 3 to see 'the present invention further provides a touch display panel, including a plurality of touch sensors and a touch processing unit. Its capacitance sensing circuit and one round of two-array arrangement and have a -capacitor, θ butterfly circuit, respectively. The electrical subtraction has a sense Φ 决定 depending on whether the touch sensor is touched or not. In addition, the electric valley sensing circuit transmits the first sensing signal to the output control circuit according to at least the ηth scanning line of the transmission code = 5 201025107 r υ 1 ^ TW 29718twf.d〇c/n scanning signal ' The output control circuit can output a second sensing signal to the touch processing unit according to at least the scan signal transmitted by the first sense signal and the n-1th scan line. Thereby, the touch processing unit can determine whether each touch sensor is touched according to the received first sensing signal. Since the present invention can utilize the signals transmitted on the scanning line to generate the sensing signals, no additional signal lines and signal sources are needed, so that the original opening does not affect the original opening degree. The above features and advantages of the present invention will become more apparent from the following description. [Embodiment] FIG. 2 is a block diagram showing a touch panel according to a preferred embodiment of the present invention. Referring to FIG. 2, the touch panel 200' of the present embodiment includes a sensor array 2〇2, which can be arranged in an array by a plurality of touch sensors % (for example, 204). In addition, the touch panel 200 further includes a touch processing unit 212 that can be coupled to the sensor array 202 through a plurality of signal lines. The signal lines coupled to the sensor array 2〇2 of the touch processing unit 212 can be divided into a column signal line 222 and a column signal line 224. In the present embodiment, the touch processing unit 212 can send the control signal from the line signal line to the touch sensor in the sensing array 202, and receive the sensing output from each touch sensor from the column signal line 222. Signal to determine the status of each touch sensor. For example, when the touch processing unit 212 determines the state of the touch sense 204, the control signal 212 can first send a control signal to the touch sensor 204 from the line signal line 224[1]. The sensing signal output by the touch sensor 204 is received from the column signal line 222 [1]. Thereby, the touch processing unit 212 can determine the state of the touch sensor 204. In the above embodiment, the touch processing unit 212 receives the control signal from the line signal line 224 and receives the sensing signal from the column signal line 222. However, in other embodiments, the touch processing unit 212 can also input a control signal from the column signal line 222 and receive a sensing signal from the line signal line 224. In some embodiments, the touch panel 200 can also be implemented by using a touch display panel. In these embodiments, the touch panel 2A (which may also be referred to as a touch display panel) may further include a data driver 232 and a scan driver 234. The data driver 232 can be coupled to the plurality of data lines 236 to transmit the plurality of data signals through the data lines 236. In addition, the scan driver 234 can be coupled to the plurality of scan lines 238 to sequentially transmit a scan signal through the scan lines 238. In order to enable the wiring on the touch display panel 2 to be simplistic and to reduce the manufacturing cost, in some embodiments, the scan line 238 can be used instead of the line signal 224 or the column signal line 222 to transmit control. The signal 'The following will be explained in detail for this point. 3 is a circuit block diagram of a touch sensor in accordance with a preferred embodiment of the present invention. Referring to FIG. 3, the touch sensor 300 provided in this embodiment can be applied to all the touch sensors in the sensor array 2〇2 of FIG. 2. The touch sensor 3〇〇 includes a capacitive sensing circuit 3〇2 and a 7 TW 29718twf.doc/n 201025107 output control. Circuit 304. The capacitance sensing circuit 3〇2 outputs at least according to the first control signal S1—the first sensing signal T1 is output to the output control circuit such as 4, and the output control circuit 3〇4 is based at least on the first sensing signal τι and the first A second sensing signal T2 is rotated to the touch processing 212 by a control signal S1. In this embodiment, the capacitance sensing circuit 302 further outputs the first sensing signal T1 according to a second control §fl number S2. Similarly, the output control circuit φ 3 (M may also output the second sensing signal T2 according to the first sensing signal τ 丨 and the second control signal illusion. wherein the control signals S1 and S2 have different duty cycles. For example, the duty cycles of the control signals S1 and S2 may be respectively in adjacent time intervals 'and the duty cycle of the first control signal Si may precede the duty cycle of the second control signal S2. Please refer to FIG. 2 in this section. In the embodiment, the first control signal S1 may be the control signal transmitted on the nk line signal line 224 [nk] or the column signal line 222 [nk], and the second control signal S2 may be the nth line signal. The control signal transmitted on line 224[n] or column signal line 222[n], where 'n is a positive integer, and k can be a positive integer less than n. In the present embodiment, 'k can be equal to For example, when the touch sensor 3 is placed at the position of the touch sensor 206 of FIG. 2, the control signals si and S2 can be respectively on the signal lines 224 [1] and 224 [2]. The transmitted signal line, and if the touch sensor 300 is placed at the position of the touch sensor 204 The control signals S1 and S2 may be control signals transmitted on the Dummy signal line (224[0]) and the signal line 224[1], respectively. However, in other embodiments, the control signal S1 and S2 can also be implemented by 8 ^ 29718twf.doc/n 201025107 line 238 field sweeping signal. For example, if the position of the 3 〇〇 touch sensor is applied, the control two ports can be the scanning line 238 [ 1] and 1 line transmitted on 238[2]. This way, the wiring complexity on the panel can be reduced, and the two embodiments of the present invention can be more clearly understood by those skilled in the art. The capacitor sensing circuit and the rim reference first embodiment are shown as circuit diagrams of the capacitance sensing circuit lightning control circuit according to the first embodiment of the present invention. Referring to FIG. 4A, in the embodiment, = sensing The circuit can include switching, 4, 6, and charge and discharge capacitors C and C2. Among them, the charge and discharge capacitance C; ^ the connection end consumes - operates the power supply Vss, and the first connection of the switch can be connected to the charge and discharge capacitor C1 The second connection terminal, and the switch 402 is scattered, f;, the power supply VDD can be operated. In the following description of the present invention, the potential of the operation power source VSS is set to the ground potential, and the details are limited to this. The first connection terminal of the sensing capacitor Cf can be charged. The discharge capacitor ends are commonly grounded, and the second connection ends of the two are connected to the first connection end of the switch 402. In addition, the second terminal end of the switch stage capacitor 〇 is detected to the wheel control jTW29718twf. Doc/n 201025107 Output control circuit 304 includes transistor 408 and switch 41 () transistor 4 ° 8 light extreme can be called open Figure 5 is shown in accordance with a preferred embodiment of the present invention Timing diagram. Please refer to the figure 图 and the figure in the example. The switches 402 and 406 are based on the control signal S1. The switch 404 and the switch 41 are based on the control signal % and the interval is '. The first control signal (4) is high. And the second = the legacy S2 is low, causing the switch 4〇2 and 4 to be completed '^^41〇WM(Turn〇ff)^a|, for the power supply VDD charging '(four) measuring capacitance Cf; Ground discharge. Electrical power C2 Next, during the time interval p2, the switches 402 and 406 are turned off due to the control signal S1^, and the switches 4〇4 and 410 are turned on and turned on. Therefore, the charging and discharging capacitor C1 will start to discharge, so that the sensing circuit 3. 2 can correct the voltage form to call the gate terminal of the body 408. At this time, the _ terminal voltage (Vg) J of the transistor 408 is expressed by > as follows:

Vg = (VDD X C1) / (C1 + C2 + Cf) (1) If, for example, the touch processing unit 212 of FIG. 2 applies the 汲 terminal of the operating voltage transistor 408, the transistor 4 〇 8 operates in the saturation region. , Yes: The crystal can be generated - the operating current is 1. Since the switching port 4 i is in a state in which the helium is turned on, the operating current iD flows out from the second connection 201025107 j ui"wTUTW29718twWoc/n terminal of the _41G, and can be a current-type sensing signal T2 and is sent to Touch processing unit 212. It can be seen from the equation (1) that when an object touches the touch sensor, the capacitance value of the sensing capacitor Cf changes, and thus the magnitude of the operating current ID also changes. Therefore, the touch processing unit 212 can determine whether each touch sensor is enabled according to the size of the sensing signal T2.

In this embodiment, since the sensing signal T2 can be in the form of current. Therefore, no matter how many touch sensors are connected in parallel, the accuracy of the sensing signals rotated by the touch sensors is still not affected. D - Embodiment FIG. 4B illustrates a second embodiment according to the present invention. Capacitance sensing circuit, circuit diagram of the output control circuit. Referring to FIG. 4B, the difference between the present embodiment and the first embodiment is that the output control circuit 3() 4 further includes a switch 412, which is determined according to the first control signal S1, and the switch 412 is determined by the switch 412. ^ The connection end and the second connection end respectively connect to the first connection end and the second connection end of the switch 41. Since the opening 412 is based on the first control signal S1, it is determined whether or not the conduction ===== The third embodiment 201025107 * v / v / v ^ -, v / FW 29718twf.doc / n Figure 4C shows the third embodiment of the invention and the output control view - circuit diagram. The difference is that the position of the charging capacitor Cf and the charging/discharging capacitor α is omitted in this embodiment. 遂, the animal is pulled in the ίί example, during the time interval Ρ2, when the switch 404 leads and wins the electric yang The voltage of the body 4G8 gate can be expressed as follows:

Vg =: (VDD X Cf) / (C1 + Cf) The fourth embodiment is a circuit diagram of a circuit for sensing the capacitance of the fourth embodiment. Referring to Fig. 4D, in this embodiment and the second embodiment, the difference is "point" in the operating voltage vss and vD〇 interchange positions. f This operating voltage VSS can be, for example, a ground potential. Such interchanged green 'causes during the time interval p2' when the switch 404 is turned on, the gate voltage of the transistor 408 can be rewritten as:

Vg = [VDD x (C2 + Cf)] / (C1 + C2 + Cf) Fifth Embodiment Fig. 4E is a circuit diagram showing a capacitance sensing circuit and an output control circuit in accordance with a fifth embodiment of the present invention. Referring to Fig. 4E, the present embodiment is similar to the third embodiment. The difference is also that the operating voltage VSS is interchanged with the bit and f of VDD. The result is that during the time interval P2, when the switch 404 is on, the gate voltage of the transistor 408 can be rewritten as:

Vg = (VDDxCl) / (Cl + Cf) 12 - TW29718twf.d〇c / n 201025107 Example compared with the previous example Special requirements Figure 2 touch area 2 ± 2 through the switch 412, 410 application of low operating voltage power Crystal 408 allows the crystallizer to operate in the saturation zone. Sixth Embodiment A circuit diagram of a capacitance sensing circuit of a sixth embodiment of the present invention is shown. Referring to FIG. 4F, in the embodiment, G G 2 way 3() 2 may include sensing capacitance Cf, charge and discharge capacitor C1, read, crystal salt, and mesh, bud = 418. The first connection end of the switch 414 can be two: each Cf is grounded, and the second connection end of the switch 414 can be used to source VDD. In addition, the 'charge and discharge capacitor C1 and the switch 418 can be respectively connected to the second connection end of the switch 414 and the eighth connection, and the second connection end of the charge and discharge capacitor C1 and the switch 418 can be coupled to the output. Control circuit 304. The output control circuit 304 can include a transistor 42 〇 and a switch 422 ^ _ transistor! 2 (3 source terminal can be grounded, and the gate terminal can be connected to the first connection end of i day 2-18. The first connection end of the switch 422 can ^ the end of the solar body 420, and _ charge and discharge capacitor 〇 The second connection end of the switch 422 can be a crystal-like and extreme. In addition, the Thunder-like first connection end. The B-body side secret (4) can be _ to the switch to j reference item # and figure 5. In the present embodiment, the switch 414 "" ί determines whether to conduct according to the θ-control signal S1, and the opening 24 determines whether or not to conduct according to the second control signal S2.

201025107 -------TW29718twf.doc/n During the time interval PI, since the first control signal ^ S2 is low, so that "4: two; t乍 electricity 24: closed" Sensing capacitance (4): The charging and discharging capacitor α discharges until the voltage of the transistor TU is cut off, and the voltage of the 420 _ terminal of the two pairs of transistors can be a special threshold voltage = π during the time interval Ρ 2, and the control signals S1 and S2 rotate the bear together, so that Switches 414 and 422 SI &·1, tffi pq ββ /11 〇a • are turned off and switches 8 and 24 are turned on. The susceptor circuit 302 outputs the sense terminal T1 to the gate terminal of the power. 'The voltage of the transistor and gate terminal (5) can be expressed as follows: /'

Vg = [(VDD X Cf) + (V^ X c 1 )] / (C 1 + Cf) (2) where Vth is the threshold voltage of the transistor 420. Since the switch 424 is turned on during the time interval P2, if it is a graph! The touch processing unit 212 applies a working voltage to the transistor 42 通过 through the switch 424, so that when the transistor 420 operates in the saturation region, the transistor 42 产生 generates an operating current; after the operating current 12 passes through the switch 424 A sensing signal T2 can be generated from the second connection end of the switch 424. The sensing signal T2 can be sent to the touch processing unit 212. From the above formula (2), the gate voltage vg of the transistor 420 can be secured within the range between the threshold voltages VTH of the operating voltage VDD transistor 420. Therefore, when the transistor 420 is led to Vth drift due to long-term operation, the present embodiment can avoid an error in the sensing signal T2. Referring back to FIG. 2, when the touch processing unit 212 receives the sensing signal T2 output by each touch 14 201025107 ------ ------ TW 29718twf.doc/n sensor, it can be touched as in the above embodiment. The sense sensor outputs a comparison of the ribs output when the unit is rotated. In this way, the touch processing unit 212 can also control the ^^V of the electric dust of the transistor in the circuit 3〇4. In addition, the present embodiment also provides several methods of determining ' to determine the state of each touch sensor. When the touch sensing unit 2G2 receives each touch, it can also compare the output of each touch sensor == f with the sensing signal T2 output by the phase sensor to each other. When receiving the signal Τ2 by the touch sensor 206, the 兀212 can compare it with the sensing signal Τ2 output by the touch sensor 2〇4. In addition, the touch sensing unit 212 is further configured to compare the sensing signal Τ2 outputted by each touch sensor with the sense_number T2 output by the adjacent touch sensors. For example, comparing the sensing signal (4) outputted by the sensing signal η 2...8 outputted by the touch sensor 2〇6 to the sensing signal Τ2 outputted by the touch sensor to be tested and the other 2 touches around the touch sensor When the sensing signal outputted by the sensor is different, the touch processing unit 212 determines that the touch sensor to be tested may be enabled. In addition, the easiest way is to taste the sensed petals u Τ 2 and the - threshold value of each touch sensor. When the sensing signal T2 output by the touch controller is higher or lower than the -threshold value, the touch processing unit 212 can determine that the touch sensor is enabled. In summary, since the sensing signal generated by the present invention can be current 15 201025107Tw ▲ ... _ TW29718 twf.d 〇 c / n ❿ , the present invention can avoid the number of touch sensors connected in parallel This causes a decrease in accuracy such as voltage attenuation due to resistance and capacitance. In addition, since the present invention can utilize the scanning signal as the control signal, the present invention can reduce the difficulty of the panel wiring, making the opening degree free from image, and also reducing the manufacturing cost. The invention has been disclosed in the above embodiments, but it is not intended to limit the general knowledge of any technical field in the field of the month, and it is possible to make some changes and retouchings without leaving the bamboo shoots. The scope of the patent application scope attached to the company is subject to the definition of patent application. [Simple description of the diagram] And 圏1B'(4) is the operation of the capacitor snubber. The original panel is 健本剌—she implements _-touch type. Figure 3 is a circuit block diagram of the device according to the present invention. 4A is a circuit diagram of a touch sensing capacitance sensing circuit and an output control circuit according to a preferred embodiment of the present invention. The capacitor sensing circuit of the second embodiment of the invention is shown in FIG.

4C and the rotation sensing circuit of the third embodiment of the invention are shown as a circuit diagram of the capacitance sensing circuit 16 201025107 F6iy/UU4»TW 29718twf.doc/n and the output control circuit according to the fourth embodiment of the present invention. . 4E is a circuit diagram of a capacitance sensing circuit and an output control circuit in accordance with a fifth embodiment of the present invention. 4F is a circuit diagram of a capacitance sensing circuit and an output control circuit in accordance with a sixth embodiment of the present invention. FIG. 5 is a timing diagram of a control signal sum in accordance with a preferred embodiment of the present invention. ^ [Main component symbol description] 100, 204, 300: touch sensor 102, 104: electrode plate 112: finger 200: panel 202: sensor array 212: touch processing unit 222: column signal line 224: line signal Line 232: data driver 234: scan driver 236: data line 302: capacitance sensing circuit 304: output control circuit 4〇2, 404' 406, 410, 412, 414, 418, 422, 424: switch 17 iiW29718twf.doc/ n 201025107 408, 420: transistor Cn, C2: charge and discharge capacitor Cf: sense capacitor CS1, CS2: sense capacitor PI, P2: time interval SI, S2 · · control signal ΤΙ, T2: sense signal VDD, VSS: Operating power supply

18

Claims (1)

201025107 t-oiv /uu^6TW 29718twf.doc/n VII. Patent application scope: 1. A capacitive touch sensor, comprising at least: a capacitive sensing circuit having a sensing capacitance, the capacitance value of which is based on Whether the touch sensor is touched or not, and the capacitive sensing circuit outputs a first sensing signal according to the at least one first control signal; and an output control circuit is coupled to the capacitive sensing circuit and receives The first sensing signal 'rounds a second sensing signal according to the first sensing signal and the first control signal to indicate the state of the touch sensor. . 2. The capacitive touch sensor of claim 1, wherein the capacitive sensing circuit and the output control circuit respectively output the first sensing signal and the second according to a second control signal The signal is sensed, and the first control signal and the second control signal have different duty cycles. . 3. The capacitive touch sensor of claim 2, wherein the first control signal and the second control signal have respective duty cycles in adjacent time intervals, and the first control signal works The cycle is early in the duty cycle of the second control signal. 4. The capacitive touch sensor of claim 2, wherein the capacitive sensing circuit comprises: - a first charging and discharging capacitor, the first connection end is grounded; - the first switch, the first The connection end is coupled to the second connection end of the charge and discharge capacitor, and the second connection end of the first switch is coupled to the operation circuit, and the first switch further determines whether to use the first control signal according to the first control signal. The operation power is turned on to the first charge and discharge capacitor; the second switch has a first connection end coupled to the first switch of the first switch. 201025107 ro iy /υυ^ο TW 29718twf.doc/n second of the second switch The connection end is coupled to the sensing electrical terminal 'and the second switch is further configured according to the second connection, the first connection end and the second connection end respectively, the first connection of the H5X sensing capacitance And a second connection end, and the first connection end of the first charging and discharging capacitor is grounded; and (4): the first connection end is grounded, and the second connection end is the second connection connection of the discharge capacitor Up to the output control power 'and the second switch is based on the first control The mosquito whether the signal is turned on. ^ Capacitive touch sensing as described in Patent Application (4) 2. The capacitance sensing circuit comprises: a remote second switch, wherein the first connection terminal is connected to the second opening of the sensing capacitor = and the first connection end of the capacitance is grounded, and the first connection is connected The terminal is connected to an operating power supply, wherein the first switch 决定 determines whether to conduct according to the first control signal; the connection: the first connection end is coupled to the first-th knowledge of the first switch, The second switch of the domain determines whether to charge the discharge capacitor according to the second control signal, the first connection end is grounded, and the second connection end is lightly connected to the second connection end of the second switch; The second connection end is grounded, and the second connection end is a road, and the second connection end of each of the second power terminals is secreted to control the electric power to determine whether to conduct according to the first control signal. The capacitive touch sensing 20 201025107, £KJl^ / w^tiiTW 29718twf.doc/n according to the second aspect of the patent scope, wherein the capacitance sensing circuit comprises: a first-first charging and discharging capacitor, the first Connect Wei to - Operation Electric #一第—_ 'The first - the connection is reduced to the first - The second connection end of the discharge capacitor' and the first-on-second connection grounding control signal determines whether the operation is "conducted to the first charge-discharge capacitor; - the second one is connected to the first Up to the first connection end of the first switch, and the second opening is determined to be conductive according to the second butterfly signal; the connecting end, and the second charging and discharging capacitor 'the first connecting end and the sensing capacitor - The connection end is connected to Jing Zuohe', and the second connection end of the second charging and discharging S-hai sensing capacitor is lightly connected to the second-third switch of the second switch, and the first connection end is lightly connected to The operating power supply, the reference-connector-side measurement capacitor (4) and the second connection end are lightly connected to the round-trip circuit' and the third switch determines whether to conduct according to the first control signal. 7. The capacitive touch sensor of claim 2, wherein the capacitive sensing circuit comprises: a first switch having a first connection coupled to a second connection of the sense capacitor, and The first connection end of the sensing capacitor is coupled to an operation voltage, and the second connection end of the first switch is grounded, wherein the first switch determines whether to conduct according to the first control signal; a second switch, the first connection end is coupled to the first 21 201025107, 1W2 - the connection end of the first switch, and the second switch determines whether to conduct according to the second control signal; a first charge and discharge a capacitor having a first connection end coupled to the operating power source and a second connection end coupled to the second connection end of the second switch; and a third switch having a first connection end coupled to the second connection end The second connection end of the first charging and discharging capacitor is coupled to the output control circuit, and the third switch determines whether to conduct according to the first control signal. 8. The capacitive touch sensor of claim 2, wherein the output control circuit comprises: a transistor having a source terminal grounded, and a gate terminal coupled to the capacitance sensing circuit to receive the a first sensing signal; and a fourth switch, the first connection end is coupled to the 汲 terminal of the transistor, and the fourth switch is determined according to the second control signal, and determining whether to output from the second connection end The second sensing signal. . . 9. The capacitive touch sensing of claim 8, wherein the output control circuit further comprises a fifth switch, the first connection thereof, and the second connection end respectively coupled to the fourth switch The first connection end and the second connection end, and the fifth switch determines whether to conduct according to the first control signal. _1〇·The capacitive touch sensor described in claim 2, wherein the output control circuit comprises: a transistor whose source is coupled to an operating power source and the gate terminal is coupled to the 22 lW29718twf.doc /n 201025107 to the electric, ❹j circuit, to the New Zealand - ❹m number; and the fourth switch, the first connection end is coupled to the 汲 terminal of the transistor, and the fourth open _ is based on the second control rail No., and decide whether to output the second sensing signal from the connection terminal of the second brother. The capacitive touch sensor of claim 10, wherein the output control circuit further includes a fifth switch, wherein the first connection end and the second connection end are respectively coupled to the fourth The first connection of the switch and The second connection end, and the fifth switch determines whether to conduct according to the first control signal. The capacitive sensing circuit of the second aspect of the invention, wherein the capacitive sensing circuit comprises: a sixth switch, the first connection end of which is coupled to the second connection of the sensing capacitor And the second connection end of the sixth switch is the operation power supply, and the sixth switch determines whether to conduct according to the first control signal; a discharge capacitor whose first connection is reduced to the sixth switch gland, and a second connection end coupled to the output control tower, and a connection: a first connection end coupled to the sixth a second circuit of the switch, the second connection end of the seventh switch is connected to the output control circuit f to be connected to the second connection end of the first charge and discharge capacitor, and the seventh switch is based on the second control signal Decide whether to turn on. ' = as claimed in the patent application (4) 2, the output control circuit includes: Drinking should 23 i W 29718twf.doc/n 201025107 A transistor whose source is extremely grounded; ^ - the eighth switch, its first - a connection wheel is connected to the closed end of the transistor and the capacitor circuit is connected to the transistor; and the terminal is determined according to the first control signal; and The ninth switch of the ❹, the first connection end is coupled to the 汲 terminal 2 of the transistor, and the ninth switch determines whether to output the second sensing signal from the second connection end of the basin according to the second control signal. Eight crying, ^4. Please refer to the capacitive touch sensing method described in the third paragraph of the patent range as the current sensing signal. !5·—A touch panel, comprising at least: a plurality of touch sensing H' array sensors in the array at least comprising: - a fox according to the touch::; a sensing capacitance, the capacitance value is more dependent on whether Ya is determined by the touch, and the capacitive sensing circuit outputs a first sensing signal to the first control signal; and the first output and an output control circuit are coupled to the capacitive sensing circuit, and receive the measurement and measurement The nickname is coupled to the output control circuit for the signal according to the first sensing signal and the first control and the second sensing signal; and the second control unit. It is determined whether each of the touch sensors is touched. The touch panel of claim 15, wherein the wheel is separately inspected, and the wheel control circuit further determines the first sensing signal and the second sensing signal according to a second control signal. And the first control 24 201025107 - the signal and the second control signal have different working cycles. The touch panel of claim 16, wherein the working periods of the first control signal and the second control signal are respectively in adjacent time intervals, and the working period of the first control signal is early The working period of the second control signal. The touch panel of claim 15, wherein the capacitive sensing circuit is further configured with at least one charge and discharge capacitor. The touch panel of claim 18, wherein the charge and discharge valleys and the sense capacitors are interchangeable with each other in a position in the capacitance sensing circuit, and still have a sensing function. 20. The touch panel of claim 16, wherein the touch processing unit omits each of the touch sensors in adjacent unit time=the output of the two sensing signals Whether the sensor is touched or not. Μ 21· The touch panel of claim 15, wherein the control unit is in the (one) (four), and each of the touch sensors outputs (four) two sensing signals. Compared with the second sensing signal touched by the adjacent other touch sensor, it is determined whether each of the touch sensors is touched. 4^22 · The touch described in claim 15 The panel 'where the menu Ϊ ' is a second sensing signal of each of the touch sensing sensors in a unit time, and a plurality of adjacent touch sensors In comparison with the test signal, it is determined whether the touch sensor is touched or not. 25 i \V 29718 twf.doc/n 201025107 23. The touch panel of claim 15 wherein the touch processing unit is The second sensing signal outputted by each of the touch sensors is compared with a threshold value in a unit time to determine whether each of the touch sensors is touched. 24. The touch panel of claim 15, wherein the second sensing signal is a current signal. 25. A touch display panel, comprising: at least: a plurality of scan lines, sequentially transmitting a broom signal; ^ a touch sensor arranged in an array, and each of the touch sensors comprises at least: The sensing circuit has a sensing capacitance, and the capacitance value is determined by whether the sensing sensor is touched or not, and the scanning signal transmitted on the W scanning line of the capacitance sensing circuit outputs a measurement signal 'where n a positive integer; and the first -#, the target output control circuit 'decreases the capacitance sensing circuit, and receives the ❹ = line the first-sensing signal and the η·1 and the knowledge signal, and outputs one The second sensing signal; with the second = output _ way, for _ 26. such as Shen 2! ^ whether the touch sensor is touched. The capacitor is salty, 'mesh, 丨: the touch display panel according to item 25 of Baowei, which is transmitted on the == the input control circuit is further based on the second line of the second detection signal. And the touch display panel according to claim 25, wherein the touch processing unit is Each of the touch sensors compares the second sensing signals outputted in the adjacent unit time to each other to determine whether each of the touch sensors is touched. 28. The touch display panel of claim 25, wherein the touch processing unit is to output a second sensing signal output by each of the touch sensors in a unit time. Comparing the second sensing signals outputted by the adjacent other touch sensors _, it is determined whether the touch sensors i are touched. 29. The touch display panel of claim 25, wherein the touch processing unit is a second sensing signal that is rotated by each of the touch sensors in a unit time. Comparing the second sensing signals outputted by the adjacent plurality of touch sensors to determine whether each of the touch sensors is touched. 30. The touch display panel of claim 25, wherein the touch processing unit is a second sensing that is rotated by each of the touch controllers in a unit time. The signal is compared with the -threshold value to determine whether each of the touch sensors is touched. 27