TWI566141B - Touch device and operating method thereof - Google Patents

Touch device and operating method thereof Download PDF

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Publication number
TWI566141B
TWI566141B TW104118629A TW104118629A TWI566141B TW I566141 B TWI566141 B TW I566141B TW 104118629 A TW104118629 A TW 104118629A TW 104118629 A TW104118629 A TW 104118629A TW I566141 B TWI566141 B TW I566141B
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Taiwan
Prior art keywords
touch
plurality
touch electrodes
shift register
integrated circuit
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Application number
TW104118629A
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Chinese (zh)
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TW201643632A (en
Inventor
郭峻廷
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宏碁股份有限公司
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Priority to TW104118629A priority Critical patent/TWI566141B/en
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Publication of TWI566141B publication Critical patent/TWI566141B/en

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Description

Touch device and operation method thereof

The present invention relates to an electronic device, and more particularly to a touch device and a method of operating the same.

In recent years, with the rapid development and application of information technology, wireless mobile communication and information appliances, many information products have been input devices such as traditional keyboards or mice for the purpose of being more convenient, lighter and more humanized. , changed to use a touch panel (Touch Panel) as an input device. The user can operate the electronic device by touching (or approaching) the touch panel with a finger or other object (such as a stylus). Compared with the contact area of the finger to the touch panel, the contact area of the stylus to the touch panel is obviously small. Therefore, the touch panel for sensing the stylus requires a higher sensing resolution, that is, more touch electrodes are disposed on the touch panel to detect objects having a smaller contact area (eg, touch). Pen) touch event on the touch panel. As the area of the touch panel increases, the number of touch electrodes of the touch panel also increases. The increase in the number of touch electrodes means that the controller integrated circuit of the touch panel requires a large number of pins and a large area of driving circuit to drive/sense the touch surface. These touch electrodes of the board. However, for a touch operation of a finger (or other animal piece), it is not advantageous to configure a large number of pins on the integrated circuit of the controller to output a scan signal (pulse signal) to the touch electrode.

The invention provides a touch device and an operation method thereof, which can increase the sense Under the premise of measuring the resolution, the number of pins used by the controller integrated circuit to output the scan signal (pulse signal) is effectively reduced.

Embodiments of the present invention provide a touch device including a touch panel and Controller integrated circuit. The touch panel has a plurality of shift register strings, a plurality of first touch electrodes, and a plurality of second touch electrodes. Each of these shift register strings includes a plurality of shift registers that are serially connected to each other. The outputs of the shift registers are connected to the first touch electrodes in a one-to-one manner. The first touch electrodes and the second touch electrodes are interdigitated to form a touch area. The controller integrated circuit has a plurality of initial pulse output ends, a plurality of first axis sensing ends and a plurality of second axis sensing ends. These start pulse outputs are connected to the shift register string in a one-to-one manner. The first axis sensing ends are connected to the first touch electrodes in a one-to-one manner. The second axis sensing ends are connected to the second touch electrodes in a one-to-one manner.

In an embodiment of the invention, during the first period, the shift register is based on The plurality of start pulse signals provided by the controller integrated circuit output a plurality of driving pulse signals to the first touch electrodes to scan the first touch electrodes. During the first period, the controller integrated circuit senses the second touch electrode via the second axis sensing end to detect Touch event of the touch area. During the second period, the controller integrated circuit senses the first touch electrode via the first axis sensing end to detect the first axis position of the main animal piece in the touch area. The controller integrated circuit senses the second touch electrode via the second axis sensing end to detect the second axis position of the main animal piece in the touch area. The first period does not overlap the second period.

In an embodiment of the invention, the touch panel has a plurality of The second shift register string, the plurality of third touch electrodes, and the plurality of fourth touch electrodes. Each of these second shift register strings includes a plurality of shift registers that are serially connected to each other. The outputs of the shift registers of the second shift register strings are connected to the third touch electrodes in a one-to-one manner. The third touch electrodes and the fourth touch electrodes are interdigitated to form a second touch area. The controller integrated circuit further has a plurality of second starting pulse outputs, a plurality of third axis sensing ends and a plurality of fourth axis sensing ends. These second start pulse outputs are connected to the second shift register string in a one-to-one manner. The third axis sensing ends are connected to the third touch electrode in a one-to-one manner. The fourth axis sensing ends are connected to the fourth touch electrode in a one-to-one manner.

In an embodiment of the invention, during the first period, the second shifts are temporarily suspended. The shift register of the register string outputs a plurality of driving pulse signals to the third touch electrode based on the plurality of start pulse signals provided by the controller integrated circuit to scan the third touch electrodes. During the first period, the controller integrated circuit senses the fourth touch electrode via the fourth axis sensing end to detect a touch event in the second touch area. During the second period, the controller integrated circuit senses the third touch electrode via the third axis sensing end to detect the first axis position of the main animal piece in the second touch area. During the second period, the controller integrates electricity The road senses the fourth touch electrode via the fourth axis sensing end to detect the second axis position of the main animal piece in the second touch area. The first period does not overlap the second period.

In an embodiment of the invention, when the controller integrated circuit is in the touch area When the primary animal is detected by one of the second touch regions, the controller integrated circuit disables the shift register of the other of the touch region and the second touch region.

An embodiment of the present invention provides a method for operating a touch device, including: Providing a plurality of shift register strings, a plurality of first touch electrodes, and a plurality of second touch electrodes on the touch panel, wherein each of the shift register strings includes a plurality of shifts connected in series The first end of the shift register is connected to the first touch electrode in a one-to-one manner, and the first touch electrode and the second touch electrode are interdigitated to form a touch area; during the first period, And outputting, by the shift register, a plurality of driving pulse signals to the first touch electrode based on the plurality of initial pulse signals provided by the controller integrated circuit to scan the first touch electrode; during the first period, by the control The integrated circuit senses the second touch electrode to detect a touch event in the touch area; during the second period, the first touch electrode is sensed by the integrated circuit of the controller to detect that the main animal is in contact a first axis position of the control region, wherein the first period does not overlap the second period; and during the second period, the second touch electrode is sensed by the controller integrated circuit to detect the first animal element in the touch area Two-axis position.

In an embodiment of the invention, the foregoing operating method further includes: providing a plurality of second shift register strings, a plurality of third touch electrodes, and a plurality of fourth touch electrodes on the touch panel, wherein each of the second shift register strings comprises a serial connection a plurality of shift registers, the output of the shift register of the second shift register string is One-to-one connection to the third touch electrode, and the third touch electrode and the fourth touch electrode are interleaved to form a second touch area; during the first period, the second shift register string is shifted The bit register outputs a plurality of driving pulse signals to the third touch electrode based on the plurality of start pulse signals provided by the controller integrated circuit to scan the third touch electrode; during the first period, the controller product The body circuit senses the fourth touch electrode to detect a touch event in the second touch area; during the second period, the third touch electrode is sensed by the controller integrated circuit to detect the main animal piece a first axis position of the touch area; and during the second period, the fourth touch electrode is sensed by the controller integrated circuit to detect the second axis position of the main animal piece in the second touch area.

In an embodiment of the present invention, the foregoing operating method further includes: controlling When the main body piece is detected by one of the touch area and the second touch area, the integrated circuit of the controller disables the shift of the other of the touch area and the second touch area. Save.

Based on the above, the embodiment of the present invention utilizes a shift register string of a touch panel. Converting a start pulse signal provided by the controller integrated circuit into a plurality of drive pulse signals to scan the touch electrodes of the touch panel. Therefore, the touch device and the operation method thereof according to the embodiments of the present invention can effectively reduce the controller integrated circuit for outputting the scan signal on the premise of increasing the sensing resolution (increasing the number of touch electrodes of the touch panel). The number of pins of the pulse signal).

In order to make the above features and advantages of the present invention more apparent, the following is a special The embodiments are described in detail below in conjunction with the drawings.

100, 700, 900, 1100‧‧‧ touch devices

110, 710, 910, 1110‧‧‧ touch panel

120, 720, 920, 1120‧‧‧ controller integrated circuit

310‧‧‧ fingers

410‧‧‧Active stylus

411‧‧‧ pulse signal

501~507, 1001~1004, t1~t18‧‧‧

CLK‧‧‧ clock output

M1~M8‧‧‧second touch electrode

M9~M20‧‧‧4th touch electrode

M21~M24‧‧‧ sixth touch electrode

M25~M28‧‧‧8th touch electrode

N1~N8‧‧‧ first touch electrode

N9~N20‧‧‧ third touch electrode

N21~N24‧‧‧ fifth touch electrode

N25~N28‧‧‧ seventh touch electrode

Rx1~Rx8‧‧‧first axis sensing end

Rx9~Rx20‧‧‧3rd axis sensing end

Rx21~Rx24‧‧‧5th axis sensing end

Rx25~Rx28‧‧‧ seventh axis sensing end

Ry1~Ry8‧‧‧Second axis sensing end

Ry9~Ry20‧‧‧4th axis sensing end

Ry21~Ry24‧‧‧ Sixth axis sensing end

Ry25~Ry28‧‧‧ eighth axis sensing end

S210~S230‧‧‧Steps

SR1~SR16‧‧‧Shift register

TP1, TP2‧‧‧ touch point

Vst1~Vst8‧‧‧start pulse output

XCLK‧‧‧Inverted Clock Output

FIG. 1 is a schematic circuit diagram of a touch device according to an embodiment of the invention.

FIG. 2 is a schematic flow chart illustrating a method of operating a touch device according to an embodiment of the invention.

FIG. 3A is a schematic diagram showing signal timing of the touch device shown in FIG. 1 according to an embodiment of the invention.

FIG. 3B is a schematic diagram showing a situation in which a finger approaches the touch point TP1 shown in FIG. 1 according to an embodiment of the present invention.

FIG. 4A is a schematic diagram showing signal timing of the touch device shown in FIG. 1 according to an embodiment of the invention.

FIG. 4B is a schematic diagram showing a situation in which the active stylus is close to the touch point TP1 shown in FIG. 1 according to an embodiment of the invention.

FIG. 5 is a schematic diagram showing signal timing of the touch device shown in FIG. 1 according to another embodiment of the invention.

FIG. 6 is a schematic diagram showing signal timing of the touch device shown in FIG. 1 according to still another embodiment of the present invention.

FIG. 7 is a schematic circuit diagram of a touch device according to another embodiment of the invention.

FIG. 8 is a schematic diagram showing signal timing of the touch device shown in FIG. 7 according to an embodiment of the invention.

FIG. 9 is a schematic circuit diagram of a touch device according to another embodiment of the invention.

FIG. 10 is a schematic diagram showing signal timing of the touch device shown in FIG. 9 according to an embodiment of the invention.

FIG. 11 is a schematic circuit diagram of a touch device according to still another embodiment of the invention.

"Coupling" used in the full text of this prospectus (including the scope of patent application) The term "接接" can refer to any direct or indirect means of attachment. For example, if the first device is described as being coupled to the second device, it should be construed that the first device can be directly connected to the second device, or the first device can be connected through other devices or some kind of connection means. Connected to the second device indirectly. In addition, wherever possible, the elements and/ Elements/components/steps that use the same reference numbers or use the same terms in different embodiments may refer to the related description.

FIG. 1 is a schematic circuit diagram of a touch device 100 according to an embodiment of the invention. The touch device 100 includes a touch panel 110 and a controller integrated circuit 120. The touch panel 110 has a plurality of shift register strings, a plurality of first touch electrodes, and a plurality of second touch electrodes. The number of first touch electrodes and/or the number of second touch electrodes can be determined according to product design requirements. For example, but not limited to, the touch panel 110 shown in FIG. 1 has first touch electrodes N1, N2, N3, N4, N5, N6, N7, N8, and having second touch electrodes M1, M2, M3, M4, M5, M6, M7, M8.

Each of the plurality of shift register strings includes a plurality of shift registers that are serially connected to each other. The number of shift register strings of the touch panel 110 and the number of shift registers in a shift register string can be determined according to product design requirements. For example, but not limited to, the touch panel 110 shown in FIG. 1 has four shift register strings, wherein the first shift register string includes a shift register SR1 connected in series with each other. SR2, the second shift register string includes shift register SR3 and SR4 connected in series, and the third shift register string includes shift register SR5 and SR6 connected in series, fourth The shift register string includes shift registers SR7 and SR8 connected in series. As used herein, "interconnected" means that the input of one shift register is electrically connected to the output of another shift register. The meaning of "multiple shift registers are connected in series" does not include the connection relationship between the power supply terminal, the control terminal, the clock trigger terminal or other connection terminals of the shift register.

The first touch electrodes N1 N N8 , the second touch electrodes M1 M M8 , and the shift registers SR1 SR SR8 can be embedded in the touch panel 110 through the same process. The shift register SR1~SR8 may be a conventional shift register or other shift register, which is not limited in this embodiment. The output terminals of the shift registers SR1 to SR8 are connected to the first touch electrodes N1 to N8 in a one-to-one manner. The first touch electrodes N1 N N8 and the second touch electrodes M1 M M8 are interdigitated to form a touch area.

The controller integrated circuit 120 has a plurality of initial pulse output ends, a plurality of first axis sensing ends and a plurality of second axis sensing ends. Number of starting pulse outputs, first The number of shaft sensing ends and/or the number of second axis sensing ends can be determined according to product design requirements. For example, but not limited to, the controller integrated circuit 120 shown in FIG. 1 has a starting pulse output terminal Vst1, Vst2, Vst3, Vst4, and has a first axis sensing terminal Rx1, Rx2, Rx3, Rx4, Rx5, Rx6, Rx7, Rx8, and having second axis sensing terminals Ry1, Ry2, Ry3, Ry4, Ry5, Ry6, Ry7, Ry8. The start pulse output terminals Vst1 VVst4 are connected to different shift register strings in a one-to-one manner. For example, the start pulse output terminal Vst1 is connected to the input terminal of the shift register SR1 of the first shift register string, and the start pulse output terminal Vst2 is connected to the second shift register string. At the input end of the shift register SR3, the start pulse output terminal Vst3 is connected to the input terminal of the shift register SR5 of the third shift register string, and the start pulse output terminal Vst4 is connected to the fourth shift The input of the shift register SR7 of the bit register string. The first axis sensing terminals Rx1 R Rx8 are connected to the first touch electrodes N1 N N8 in a one-to-one manner. The second axis sensing terminals Ry1 R Ry8 are connected to the second touch electrodes M1 M M8 in a one-to-one manner.

The controller integrated circuit 120 also has a clock output terminal CLK and an inverted clock output terminal XCLK. The clock output terminal CLK is coupled to the clock trigger terminals of the shift registers SR1 SRSR8 to provide a clock signal. The inverting clock output terminal XCLK is coupled to the clock trigger terminals of the shift registers SR1 SRSR8 to provide an inverted clock signal.

FIG. 2 is a schematic flow chart illustrating a method of operating a touch device according to an embodiment of the invention. Referring to FIG. 1 and FIG. 2, step S210 provides a plurality of shift register strings, a plurality of first touch electrodes, and a plurality of second touch electrodes on the touch panel. For example, the touch panel 110 shown in FIG. 1 has four shift register strings (shift register) SR1~SR8), eight first touch electrodes N1~N8 and eight second touch electrodes M1~M8.

The controller integrated circuit 120 can provide the same or different start pulse signals to the shift register string of the touch panel 110 via the start pulse output terminals Vst1 VVst4 during the first period. During the first period, according to the trigger timing of the clock signal outputted by the clock output terminal CLK and the inverted clock output terminal XCLK, the shift register strings (shift register SR1~SR2, SR3~SR4, SR5) ~SR6 and SR7~SR8) may generate/output a driving pulse signal to the first touch electrodes N1~N8 based on the initial pulse signal provided by the controller integrated circuit 120 to scan the first touch electrodes N1~N8 (Step S220). During the same first period, the controller integrated circuit 120 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing ends Ry1 RY8 to detect the touch area of the touch panel 110. The touch event (step S220).

For example, FIG. 3A is a schematic diagram showing signal timing of the touch device 100 of FIG. 1 according to an embodiment of the invention. The controller integrated circuit 120 supplies a start pulse signal to the first shift register string (shift registers SR1 to SR2) via the start pulse output terminal Vst1 at time t1. According to the trigger timing of the clock signal outputted by the clock output terminal CLK and the inverted clock output terminal XCLK, and based on the start pulse signal provided by the start pulse output terminal Vst1, the shift registers SR1 and SR2 may be respectively The times t3 and t5 generate/output drive pulses to the first touch electrodes N1 and N2 (as shown in FIG. 3A). The controller integrated circuit 120 supplies a start pulse signal to the second shift register string (shift registers SR3 to SR4) via the start pulse output terminal Vst2 at time t5. Based on the initial pulse signal provided by the starting pulse output terminal Vst2, the shift is temporarily suspended. The registers SR3 and SR4 can generate/output drive pulses to the first touch electrodes N3 and N4 at times t7 and t9, respectively (as shown in FIG. 3A). The controller integrated circuit 120 supplies a start pulse signal to the third shift register string (shift registers SR5 to SR6) via the start pulse output terminal Vst3 at time t9. Based on the start pulse signal provided by the start pulse output terminal Vst3, the shift registers SR5 and SR6 can generate/output drive pulses to the first touch electrodes N5 and N6 at times t11 and t13, respectively (as shown in FIG. 3A). ). The controller integrated circuit 120 supplies a start pulse signal to the fourth shift register string (shift registers SR7 to SR8) via the start pulse output terminal Vst4 at time t13. Based on the start pulse signal provided by the start pulse output terminal Vst4, the shift registers SR7 and SR8 can generate/output drive pulses to the first touch electrodes N7 and N8 at times t15 and t17, respectively (as shown in FIG. 3A). ).

For example, it is assumed that the touch point TP1 of the object (such as a finger or the like) approaching/touching the touch panel 110 is located at the intersection of the first touch electrode N3 and the second touch electrode M2, as shown in FIG. . FIG. 3B is a schematic diagram showing the context of an object (eg, finger 310) approaching the touch point TP1 shown in FIG. 1 in accordance with an embodiment of the present invention. A parasitic capacitance is formed between the finger 310 and the first touch electrode N3, and another parasitic capacitance is formed between the finger 310 and the second touch electrode M2. Therefore, the driving pulse generated/outputted by the shift register SR3 can be transmitted to the second axis sensing terminal Ry2 of the controller integrated circuit 120 via the first touch electrode N3, the finger 310 and the second touch electrode M2. . Therefore, during the first period, the controller integrated circuit 120 can detect/learn that the touch point TP1 of the finger 310 is near the intersection of the first touch electrode N3 and the second touch electrode M2.

Therefore, the present embodiment utilizes the shift register string of the touch panel 110 (eg, the first shift register string SR1~SR2, the second shift register string SR3~SR4, and the third shift). The scratchpad string SR5~SR6 or the fourth shift register string SR7~SR8) converts a start pulse signal provided by the controller integrated circuit 120 into a plurality of drive pulse signals to scan the touch panel 110. Touch electrode. Therefore, the touch device 100 and the operation method thereof can effectively reduce the controller integrated circuit 120 under the premise of increasing the sensing resolution (increasing the number of the touch electrodes N1 to N8 of the touch panel 110). The number of pins used to output the scan signal (pulse signal). Taking FIG. 1 and FIG. 3A as an example, the four start pulse output terminals Vst1 VVst4 of the controller integrated circuit 120 can scan the eight first touch electrodes N1 N N8.

Referring to FIG. 1 and FIG. 2 , when the main animal component (eg, the active stylus) approaches or contacts the touch area of the touch panel 110 , the main animal component can provide a driving pulse signal to the touch area. During the second period, the controller integrated circuit 120 can sense the first touch electrodes N1 N N8 via the first axis sensing ends Rx1 R R8 to detect the first axis position of the main animal in the touch area (steps) S230). The first period does not overlap the second period. During the same second period, the controller integrated circuit 120 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing ends Ry1 R Ry8 to detect the touch of the main animal piece on the touch panel 110. The second axis position in the area is controlled (step S230).

For example, FIG. 4A is a schematic diagram showing signal timing of the touch device 100 of FIG. 1 according to an embodiment of the invention. Referring to FIG. 1 and FIG. 4A, the shift registers SR1 SR SR8 are in the first period (for example, time t3, t5, t7, t9, t11, and FIG. 4A). T13, t15 and t17) respectively generate/output drive pulses to the first touch electrodes N1 to N8. During the same first period, the controller integrated circuit 120 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing ends Ry1 RY8 to detect the touch area of the touch panel 110. Touch event (such as a finger touch). During the second period (eg, times t4, t6, t8, t10, t12, t14, t16, and t18 shown in FIG. 4A), the controller integrated circuit 120 can sense the first through the first axis sensing terminals Rx1 R Rx8, respectively. The touch electrodes N1~N8 detect the first axial position (for example, the Y-axis position) of the main animal component (for example, an active stylus, an Active Pen) in the touch area. During the same second period, the controller integrated circuit 120 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing ends Ry1 R Ry8 to detect the touch of the main animal piece on the touch panel 110. The second axis position of the control zone (eg X-axis position). It should be noted that the signal waveforms of the first axis sensing terminals Rx1 R Rx8 shown in FIG. 4A are not the actual waveforms of the first axis sensing terminals Rx1 R Rx8. Taking the first-axis sensing terminal Rx1 as an example, the Rx1 shown in FIG. 4A is “high-level”, indicating that the sensing operation of the first-axis sensing terminal Rx1 is enabled, and Rx1 is “low-level”. The sensing operation of the first axis sensing terminal Rx1 is disabled. The other first axis sensing terminals Rx2 R Rx8 can be analogized with reference to the related description of the first axis sensing terminal Rx1.

For example, it is assumed here that the touch point TP1 of the main animal component (eg, the active stylus pen) approaching/touching the touch panel 110 is located at the intersection of the first touch electrode N3 and the second touch electrode M2. As shown in Figure 1. FIG. 4B is a schematic diagram showing a situation in which a main animal component (for example, the active stylus 410) is close to the touch point TP1 shown in FIG. 1 according to an embodiment of the present invention. According to product design requirements, the active stylus 410 can It is an Active Capacitive Stylus or other type of stylus that can emit a pulse signal 411 (such as a high voltage signal). The active stylus 410 has a conductive tip that can transmit the pulse signal 411 to the touch panel 110. In some embodiments, this pulse signal 411 can be synchronized with the drive pulses generated/output by the shift registers SR1-SR8 to strengthen the first axis sense terminals Rx1 R Rx8 and/or the second axis sense. Receive signals from terminals Ry1 to Ry8. Therefore, the touch device 100 can detect the position of the active stylus 410 well and accurately.

When the active stylus 410 approaches or contacts the touch area of the touch panel 110, the active stylus 410 can provide the pulse signal 411 to the touch area. A parasitic capacitance is formed between the active stylus 410 and the first touch electrode N3. Therefore, the pulse signal 411 can be transmitted to the first axis sensing terminal Rx3 of the controller integrated circuit 120 via the first touch electrode N3. Another parasitic capacitance is formed between the active stylus 410 and the second touch electrode M2. Therefore, the pulse signal 411 can be transmitted to the second axis sensing end of the controller integrated circuit 120 via the second touch electrode M2. Ry2. Therefore, in the second period, the controller integrated circuit 120 can detect/learn that the touch point TP1 of the active stylus 410 is near the intersection of the first touch electrode N3 and the second touch electrode M2.

Therefore, the start pulse output terminals Vst1 VVst4 of the controller integrated circuit 120 can provide drive pulses to the first touch electrodes N1 N N8 through different shift register strings during the first period; and the controller integrated circuit The first axis sensing terminals Rx1 R Rx8 of 120 may sense the first touch electrodes N1 N N8 during the second period. That is to say, this embodiment The start pulse output terminals Vst1 VVst4 of the controller integrated circuit 120 and the first axis sensing terminals Rx1 R Rx8 can share the same first touch electrodes N1 N N8 in time sharing, so that the touch panel 110 can have both The detection function of the main animal parts (such as the active stylus, etc.) and the detection function of the animal parts (such as fingers).

In some embodiments, the controller integrated circuit 120 may have a frequency hopping function to adjust the frequency of the clock signal output by the clock output terminal CLK and the inverted clock output terminal XCLK. This frequency hopping function can prevent the working frequency of the main animal parts from colliding with the operating frequencies of the shift registers SR1~SR4.

In addition, the transmission terminal electrode of the touch panel 110 is provided without increasing the number of the transmission end channels (Tx channel, for example, the start pulse output terminals Vst1 to Vst4 shown in FIG. 1) of the controller integrated circuit 120 ( The driving electrodes, for example, the first touch electrodes N1 to N8 shown in FIG. 1 can be multiplied. Taking the embodiment shown in FIG. 1 as an example, the controller integrated circuit 120 can drive/scan 8 first touch electrodes N1~N8 with 4 start pulse output terminals Vst1~Vst4 to match the animal parts (such as fingers). Etc.) to detect.

In any case, the signal timing of the touch device 100 shown in FIG. 1 should not be limited to FIG. 3A and FIG. 4A. For example, FIG. 5 is a schematic diagram showing signal timing of the touch device 100 of FIG. 1 according to another embodiment of the present invention. Referring to FIG. 1 and FIG. 5, the shift registers SR1 SR SR4 respectively generate/output drive pulses to the first touch electrode N1 during the first period (eg, times t3, t5, t7, and t9 shown in FIG. 5). ~N4. During the same first period, the controller integrated circuit 120 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing ends Ry1 R Ry8 to detect the touch panel 110 . Touch events of the touch area (such as the touch of a finger). During the second period (eg, times 501, 503, 505, and 507 shown in FIG. 5), the controller integrated circuit 120 can sense the first touch electrodes N1 N N4 via the first axis sensing terminals Rx1 R Rx4, respectively. The first animal position (for example, the Y-axis position) of the main animal component (for example, the active stylus 410) is detected in the touch area. During the same second period, the controller integrated circuit 120 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing ends Ry1 R Ry8 to detect the touch of the main animal piece on the touch panel 110. The second axis position of the control zone (eg X-axis position). The operation of the remaining first touch electrodes N5~N8 can be analogized with reference to the related description of the first touch electrodes N1~N4. Similar to FIG. 4A, the signal waveforms of the first axis sensing terminals Rx1 R Rx4 shown in FIG. 5 are not the actual waveforms of the first axis sensing terminals Rx1 R Rx4, but the enabling/disabling states of the sensing operations thereof. .

FIG. 6 is a schematic diagram showing signal timing of the touch device 100 of FIG. 1 according to another embodiment of the present invention. Referring to FIG. 1 and FIG. 6, the shift registers SR1 SR SR8 respectively generate/output drive pulses to the first touch electrode N1 during the first period (eg, times t3, t5, t7, and t9 shown in FIG. 6). ~N8. During the same first period, the controller integrated circuit 120 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing ends Ry1 RY8 to detect the touch area of the touch panel 110. Touch event (such as a finger touch). During the second period (eg, times t4, t6, t8, t10, t12, t14, t16, and t18 shown in FIG. 6), the controller integrated circuit 120 can sense the first through the first axis sensing terminals Rx1 R Rx8, respectively. The touch electrodes N1 N N8 are configured to detect a first animal position (eg, a Y-axis position) of the main animal component (eg, an active stylus pen, not shown) in the touch area. During the same second period, the controller integrated circuit 120 can be The second axis sensing ends Ry1 R Ry8 synchronously sense the second touch electrodes M1 M M8 to detect the second axis position (eg, the X axis position) of the main animal piece in the touch area of the touch panel 110 . Similar to FIG. 4A, the signal waveforms of the first axis sensing terminals Rx1 R Rx8 shown in FIG. 6 are not the actual waveforms of the first axis sensing terminals Rx1 R Rx8, but the enabling/disabling states of the sensing operations thereof. .

FIG. 7 is a schematic circuit diagram of a touch device 700 according to another embodiment of the invention. The touch device 700 includes a touch panel 710 and a controller integrated circuit 720. The touch panel 710 and the controller integrated circuit 720 shown in FIG. 7 can be similarly described with reference to FIGS. 1 to 6 for the touch panel 110 and the controller integrated circuit 120. Therefore, similar contents will not be described again. The touch panel 710 has a plurality of first shift register strings, a plurality of second shift register strings, a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of third touch electrodes. And a plurality of fourth touch electrodes. The number of the first touch electrodes, the number of the second touch electrodes, the number of the third touch electrodes, and/or the number of the fourth touch electrodes may be determined according to product design requirements. For example, but not limited to, the touch panel 710 shown in FIG. 7 has first touch electrodes N1, N2, N3, N4, N5, N6, N7, N8, and has second touch electrodes M1, M2. , M3, M4. The touch panel 710 further has third touch electrodes N9, N10, N11, N12, N13, N14, N15, N16, and has fourth touch electrodes M9, M10, M11, M12.

Each of the plurality of first shift register strings includes a plurality of shift registers that are serially connected to each other. The number of the first shift register strings of the touch panel 710, and the number of shift registers in a first shift register string, may be in accordance with the product. Design needs to decide. For example, but not limited to, the touch panel 710 shown in FIG. 7 has four first shift register strings, that is, shift register SR1 and SR2 connected in series with each other. The registers SR3 and SR4, the shift registers SR5 and SR6 connected in series, and the shift registers SR7 and SR8 connected in series.

Each of the plurality of second shift register strings includes a plurality of shift registers in series with each other. The number of second shift register strings of touch panel 710, and the number of shift registers in a second shift register string, can be determined according to product design requirements. For example, but not limited to, the touch panel 710 shown in FIG. 7 has four second shift register strings, that is, shift register SR9 and SR10 connected in series, and serial shifts thereof. The registers SR11 and SR12, the shift registers SR13 and SR14 connected in series, and the shift registers SR15 and SR16 connected in series.

The first touch electrodes N1 to N8, the second touch electrodes M1 to M4, the third touch electrodes N9 to N16, the fourth touch electrodes M9 to M12, and the shift registers SR1 to SR16 can be processed through the same process. Embedded in the touch panel 710. The shift register SR1~SR16 may be a conventional shift register or other shift register, which is not limited in this embodiment. The output terminals of the shift registers SR1 to SR8 are connected to the first touch electrodes N1 to N8 in a one-to-one manner. The first touch electrodes N1 N N8 and the second touch electrodes M1 M M4 are interdigitated to form a first touch area. The outputs of the shift registers SR9~SR16 are connected to the third touch electrodes N9~N16 in a one-to-one manner. The third touch electrodes N9-N16 and the fourth touch electrodes M9-M12 are interdigitated to form a second touch area.

The controller integrated circuit 720 has a plurality of first start pulse outputs, and more The second starting pulse output end, the plurality of first axis sensing ends, the plurality of second axis sensing ends, the plurality of third axis sensing ends and the plurality of fourth axis sensing ends. The number of first start pulse output ends, the number of second start pulse output ends, the number of first axis sense terminals, the number of second axis sense terminals, the number of third axis sense terminals, and/or the number of fourth axis sense terminals Can be determined according to product design needs. For example, but not limited to, the controller integrated circuit 720 shown in FIG. 7 has first start pulse output terminals Vst1, Vst2, Vst3, Vst4, and has first axis sensing terminals Rx1, Rx2, Rx3, Rx4. , Rx5, Rx6, Rx7, Rx8, and having second axis sensing terminals Ry1, Ry2, Ry3, Ry4. The first start pulse output terminals Vst1 VVst4 are connected to different first shift register strings in a one-to-one manner. For example, the first start pulse output terminal Vst1 is connected to the input terminal of the shift register SR1, the first start pulse output terminal Vst2 is connected to the input terminal of the shift register SR3, and the first start pulse output terminal Vst3 is connected. To the input of the shift register SR5, the first start pulse output terminal Vst4 is connected to the input terminal of the shift register SR7. The first axis sensing terminals Rx1 R Rx8 are connected to the first touch electrodes N1 N N8 in a one-to-one manner. The second axis sensing terminals Ry1 R Ry4 are connected to the second touch electrodes M1 M M4 in a one-to-one manner.

The controller integrated circuit 720 further has second start pulse output terminals Vst5, Vst6, Vst7, Vst8, and has third axis sensing terminals Rx9, Rx10, Rx11, Rx12, Rx13, Rx14, Rx15, Rx16, and Four-axis sensing terminals Ry9, Ry10, Ry11, Ry12. The second start pulse output terminals Vst5 to Vst8 are connected to different second shift register strings in a one-to-one manner. For example, the second start pulse output terminal Vst5 is connected to the input terminal of the shift register SR9, and the second start pulse output terminal Vst6 is connected to the input terminal of the shift register SR11, the second start pulse output terminal Vst7 is connected to the input terminal of the shift register SR13, and the second start pulse output terminal Vst8 is connected to the shift register SR15. Input. The third axis sensing terminals Rx9 R Rx16 are connected to the third touch electrodes N9 N N16 in a one-to-one manner. The fourth axis sensing terminals Ry9 to Ry12 are connected to the fourth touch electrodes M9 to M12 in a one-to-one manner.

The controller integrated circuit 720 also has a clock output terminal CLK and an inverted clock output terminal XCLK. The clock output terminal CLK is coupled to the clock trigger terminals of the shift registers SR1 SR SR16 to provide a clock signal. The inverting clock output terminal XCLK is coupled to the clock trigger terminals of the shift registers SR1 SR SR16 to provide an inverted clock signal.

The signal timings of the plurality of first shift register strings (shift registers SR1 to SR8) shown in FIG. 7 can be referred to the relevant description of FIGS. 3A to 6. The signal timings of the plurality of second shift register strings (shift registers SR9 to SR16) shown in FIG. 7 can be analogized with reference to the related descriptions of the shift registers SR1 to SR8 shown in FIGS. 1 to 6. Therefore, it will not be repeated.

The controller integrated circuit 720 can provide the same or different start pulse signals to the first shift register string of the touch panel 710 via the first start pulse output terminals Vst1 VVst4 during the first period, and during the first period. The same or different start pulse signals may be supplied to the second shift register string of the touch panel 710 via the second start pulse output terminals Vst5 VVst8. During the first period, according to the trigger timing of the clock signal outputted by the clock output terminal CLK and the inverted clock output terminal XCLK, the first shift register strings (shift register SR1~SR2, SR3~SR4) , SR5~SR6 and SR7~SR8) may be based on the initial pulse signal provided by the controller integrated circuit 720 And generating/outputting a driving pulse signal to the first touch electrodes N1 N N8 to scan the first touch electrodes N1 N N8. Similarly, the second shift register strings (shift registers SR9~SR10, SR11~SR12, SR13~SR14, and SR15~SR16) may be based on the start pulse signal provided by the controller integrated circuit 720. And generating/outputting a driving pulse signal to the third touch electrodes N9 to N16 to scan the third touch electrodes N9 to N16. During the same first period, the controller integrated circuit 720 can synchronously sense the second touch electrodes M1 M M4 via the second axis sensing terminals Ry1 R Ry4 , and the controller integrated circuit 720 can also pass the fourth axis The sensing terminals Ry9 to Ry12 synchronously sense the fourth touch electrodes M9 to M12. Therefore, during the first period, the controller integrated circuit 720 can detect a touch event of the first touch area and/or the second touch area of the touch panel 710.

For example, FIG. 8 is a schematic diagram showing signal timing of the touch device 700 of FIG. 7 according to an embodiment of the invention. At time t1, the controller integrated circuit 720 provides a start pulse signal to the first shift register string via the first start pulse output terminal Vst1 and the second start pulse output terminal Vst5 (shift register SR1~). SR2) and the second shift register string (shift register SR9~SR10). According to the trigger timing of the clock signal outputted by the clock output terminal CLK and the inverted clock output terminal XCLK, and the start pulse signal provided based on the first start pulse output terminal Vst1 and the second start pulse output terminal Vst5, The bit buffers SR1 and SR9 can respectively generate/output drive pulses to the first touch electrode N1 and the third touch electrode N9 at time t3, and the shift registers SR2 and SR10 can respectively generate/output drive at time t5. Pulses to the first touch electrode N2 and the third touch electrode N10 (as shown in FIG. 8). Controller integrated circuit 720 Providing a start pulse signal to the first shift register string (shift register SR3~SR4) and the second shift respectively via the first start pulse output terminal Vst2 and the second start pulse output terminal Vst6 at time t5 Register string (shift register SR11~SR12). Based on the initial pulse signal provided by the first start pulse output terminal Vst2 and the second start pulse output terminal Vst6, the shift registers SR3 and SR11 can respectively generate/output drive pulses to the first touch electrode N3 at time t7. And the third touch electrode N11, and the shift registers SR4 and SR12 can respectively generate/output drive pulses to the first touch electrode N4 and the third touch electrode N12 at time t9 (as shown in FIG. 8). The controller integrated circuit 720 supplies a start pulse signal to the first shift register string via the first start pulse output terminal Vst3 and the second start pulse output terminal Vst7 at time t9 (shift register SR5~SR6). And the second shift register string (shift register SR13~SR14). Based on the initial pulse signal provided by the first start pulse output terminal Vst3 and the second start pulse output terminal Vst7, the shift registers SR5 and SR13 can respectively generate/output drive pulses to the first touch electrode N5 at time t11. And the third touch electrode N13, and the shift registers SR6 and SR14 can respectively generate/output drive pulses to the first touch electrode N6 and the third touch electrode N14 (shown in FIG. 8) at time t13. The controller integrated circuit 720 provides a start pulse signal to the first shift register string via the first start pulse output terminal Vst4 and the second start pulse output terminal Vst8 at time t13 (shift register SR7~SR8) And the second shift register string (shift register SR15~SR16). Based on the initial pulse signal provided by the first start pulse output terminal Vst4 and the second start pulse output terminal Vst8, the shift registers SR7 and SR15 can respectively generate/output drive pulses to the first touch electrode N7 at time t15. And the third touch electrode N15, and the shift registers SR8 and SR16 can respectively generate/output drive pulses to the first touch electrode N8 and the third touch electrode N16 at time t17 (as shown in FIG. 8).

When the main animal component (for example, an active stylus pen, not shown) approaches or contacts the first touch area or the second touch area of the touch panel 710 shown in FIG. 7, the main animal piece can provide a driving pulse signal to The first touch area or the second touch area. During the second period, the controller integrated circuit 720 can sense the first touch electrodes N1 N N8 via the first axis sensing terminals Rx1 R R8 to detect that the main animal device (not shown) is in the first touch region. The first axis position (for example, the X-axis position); and the controller integrated circuit 720 can sense the third touch electrodes N9~N16 via the third axis sensing ends Rx9 R Rx16 to detect the main animal piece (not drawn Shows a first axis position (eg, an X-axis position) in the second touch area. The first period does not overlap the second period. During the same second period, the controller integrated circuit 720 can synchronously sense the second touch electrodes M1 M M4 via the second axis sensing ends Ry1 R Ry4 to detect the main animal piece in the touch panel 710. a second axis position (eg, a Y-axis position) in a touch area; and the controller integrated circuit 720 can synchronously sense the fourth touch electrodes M9-M12 via the fourth axis sensing ends Ry9 Ry12 A second axial position (eg, a Y-axis position) of the primary animal in the second touch area of the touch panel 710 is detected.

It is assumed here that the touch point TP2 of the main animal piece (for example, the active stylus pen) approaching/touching the touch panel 710 is located at the intersection of the first touch electrode N3 and the second touch electrode M2, as shown in FIG. 7 . Show. When the main animal member approaches or contacts the touch point TP2 of the touch panel 710, the pulse signal provided by the main animal device can be transmitted to the first axis sensing terminal Rx3 of the controller integrated circuit 720 via the first touch electrode N3. as well as The pulse signal provided by the main animal device can be transmitted to the second axis sensing terminal Ry2 of the controller integrated circuit 720 via the second touch electrode M2. Therefore, the controller integrated circuit 720 can detect/learn that the touch point TP2 of the main animal piece is near the intersection of the first touch electrode N3 and the second touch electrode M2.

In other embodiments, when the controller integrated circuit 720 detects the main animal in one of the first touch area and the second touch area, the controller integrated circuit 720 can disable the first touch area. And a shift register of the other of the second touch regions. For example, when the controller integrated circuit 720 detects the pulse signal of the main animal component in the touch electrodes N3 and M2 of the first touch area, the controller integrated circuit 720 can disable the passive of the second touch area. Object detection operations, such as disable shift register SR9~SR16. This embodiment does not limit the means for disabling the shift registers SR9 to SR16. For example, but not limited to, the controller integrated circuit 720 may stop outputting the start pulse signals of the second start pulse output terminals Vst5 to Vst8 to the shift registers SR9~SR16, and/or stop providing The clock signal is sent to the shift registers SR9~SR16. Part of the touch area of the touch panel 710 is disabled to avoid accidental touch of the touch panel 710 by the animal (eg, the palm).

The division of the touch area of the touch panel 710 is not limited to the above. In some embodiments, for example, the touch panel 710 can be divided into four touch regions. For example, an area where the first touch electrodes N1 N N4 and the second touch electrodes M1 M M4 intersect can be defined as The first touch area, the area where the first touch electrodes N5~N8 and the second touch electrodes M1~M4 intersect may be defined as the second touch area, and the third touch electrodes N9~N12 and the fourth touch The area where the electrodes M9~M12 intersect can be The area defined as the third touch area and the third touch electrodes N13 NN16 and the fourth touch electrodes M9 MM12 may be defined as the fourth touch area. When the controller integrated circuit 720 detects the pulse signal of the main animal component in the touch electrodes N3 and M2 of the first touch area, the controller integrated circuit 720 can detect/learn that the touch point TP2 is located at the first touch. region. Based on the touch point TP2 of the first touch area, the controller integrated circuit 720 can disable the detection of the animal parts of the second touch area, the third touch area and the fourth touch area, for example, disable the shift Registers SR5~SR16. Therefore, the first touch area can detect the touch event of the main animal piece and the animal piece, and the second touch area, the third touch area and the fourth touch area cannot detect the touch event of the animal piece (but Detecting the touch event of the main animal piece). Part of the touch area of the touch panel 710 is disabled to avoid accidental touch of the touch panel 710 by the animal (eg, the palm).

In other embodiments, for example, when the controller integrated circuit 720 detects the pulse signal of the main animal in the touch electrodes N3 and M2, the controller integrated circuit 720 can disable all the shift registers SR1. ~SR16. In the case where the shift registers SR1 SR SR16 are disabled, the touch panel 710 loses the touch event of sensing the touch panel 710 by the animal (eg, a finger). In any case, the disabling of the shift registers SR1 SR SR16 does not affect the operation and function of the controller integrated circuit 720 to detect the main animal component (eg, the active stylus) on the touch panel 710.

FIG. 9 is a schematic circuit diagram of a touch device 900 according to another embodiment of the invention. The touch device 900 includes a touch panel 910 and a controller integrated circuit 920. The touch panel 910 and the controller integrated circuit 920 shown in FIG. 9 can be referred to FIG. 1 to FIG. 6 are similar to the related description of the touch panel 110 and the controller integrated circuit 120, so similar contents will not be described again. The touch panel 910 has a plurality of first shift register strings, a plurality of second shift register strings, a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of third touch electrodes. And a plurality of fourth touch electrodes. The number of the first touch electrodes, the number of the second touch electrodes, the number of the third touch electrodes, and/or the number of the fourth touch electrodes may be determined according to product design requirements. For example, but not limited to, the touch panel 910 shown in FIG. 9 has first touch electrodes N1, N2, N3, and N4, and has second touch electrodes M1, M2, M3, M4, M5, and M6. , M7, M8. The touch panel 910 further has third touch electrodes N17, N18, N19, and N20, and has fourth touch electrodes M13, M14, M15, M16, M17, M18, M19, and M20.

Each of the plurality of first shift register strings includes a plurality of shift registers that are serially connected to each other. The number of first shift register strings of the touch panel 910 and the number of shift registers in a first shift register string can be determined according to product design requirements. For example, but not limited to, the touch panel 910 shown in FIG. 9 has two first shift register strings, that is, shift register SR1 and SR2 connected in series, and a serial shift Bit registers SR3 and SR4.

Each of the plurality of second shift register strings includes a plurality of shift registers in series with each other. The number of second shift register strings of touch panel 910, and the number of shift registers in a second shift register string, can be determined according to product design requirements. For example, but not limited to, the touch panel 910 shown in FIG. 9 has two second shift register strings, that is, a shift register SR5 connected in series with each other. SR6, and shift registers SR7 and SR8 connected in series.

The first touch electrodes N1 to N4, the second touch electrodes M1 to M8, the third touch electrodes N17 to N20, the fourth touch electrodes M13 to M20, and the shift registers SR1 to SR8 can be processed through the same process. Embedded in the touch panel 910. The shift register SR1~SR8 may be a conventional shift register or other shift register, which is not limited in this embodiment. The output terminals of the shift registers SR1 to SR4 are connected to the first touch electrodes N1 to N4 in a one-to-one manner. The first touch electrodes N1 N N4 and the second touch electrodes M1 M M8 are interdigitated to form a first touch area. The output terminals of the shift registers SR5 to SR8 are connected to the third touch electrodes N17 to N20 in a one-to-one manner. The third touch electrodes N17-N20 and the fourth touch electrodes M13-M20 are interdigitated to form a second touch area.

The controller integrated circuit 920 has a plurality of first start pulse output ends, a plurality of second start pulse output ends, a plurality of first axis sense ends, a plurality of second axis sense ends, and a plurality of third axis senses The measuring end and the plurality of fourth axis sensing ends. The number of first start pulse output ends, the number of second start pulse output ends, the number of first axis sense terminals, the number of second axis sense terminals, the number of third axis sense terminals, and/or the number of fourth axis sense terminals Can be determined according to product design needs. For example, but not limited to, the controller integrated circuit 920 shown in FIG. 9 has first start pulse output terminals Vst1 and Vst2, and has first axis sensing terminals Rx1, Rx2, Rx3, Rx4, and has a first Two-axis sensing terminals Ry1, Ry2, Ry3, Ry4, Ry5, Ry6, Ry7, Ry8. The first start pulse output terminals Vst1 and Vst2 are connected to different first shift register strings in a one-to-one manner. For example, the first start pulse output terminal Vst1 is connected to the shift register SR1 The input of the first start pulse output terminal Vst2 is connected to the input terminal of the shift register SR3. The first axis sensing terminals Rx1 R Rx4 are connected to the first touch electrodes N1 N N4 in a one-to-one manner. The second axis sensing terminals Ry1 R Ry8 are connected to the second touch electrodes M1 M M8 in a one-to-one manner.

The controller integrated circuit 920 further has second start pulse output terminals Vst3 and Vst4, and has third axis sensing terminals Rx17, Rx18, Rx19, Rx20, and fourth axis sensing terminals Ry13, Ry14, Ry15, Ry16. , Ry17, Ry18, Ry19, Ry20. The second start pulse output terminals Vst3 and Vst4 are connected in a one-to-one manner to different second shift register strings. For example, the second start pulse output terminal Vst3 is connected to the input terminal of the shift register SR5, and the second start pulse output terminal Vst4 is connected to the input terminal of the shift register SR7. The third axis sensing terminals Rx17 R Rx20 are connected to the third touch electrodes N17 N N20 in a one-to-one manner. The fourth axis sensing terminals Ry13 to Ry20 are connected to the fourth touch electrodes M13 to M20 in a one-to-one manner.

The controller integrated circuit 920 also has a clock output CLK and an inverted clock output terminal XCLK. The clock output terminal CLK is coupled to the clock trigger terminals of the shift registers SR1 SRSR8 to provide a clock signal. The inverting clock output terminal XCLK is coupled to the clock trigger terminals of the shift registers SR1 SRSR8 to provide an inverted clock signal.

The signal timings of the plurality of first shift register strings (shift registers SR1 to SR4) shown in FIG. 9 can be referred to the relevant description of FIGS. 3A to 6. The signal timings of the plurality of second shift register strings (shift registers SR5 to SR8) shown in FIG. 9 can be analogized with reference to the related descriptions of the shift registers SR1 to SR4 shown in FIGS. 1 to 6. Or refer to the related description of the shift register SR9~SR16 shown in FIG. 7 to FIG. 8 and so on, so Let me repeat.

The controller integrated circuit 920 can provide the same or different start pulse signals to the first shift register string of the touch panel 910 via the first start pulse output terminals Vst1 and Vst2 during the first period, and during the first period. The same or different start pulse signals may be supplied to the second shift register string of the touch panel 710 via the second start pulse output terminals Vst3 and Vst4. During the first period, according to the trigger timing of the clock signal outputted by the clock output terminal CLK and the inverted clock output terminal XCLK, the first shift register strings (shift registers SR1~SR2 and SR3~SR4) The driving pulse signal can be generated/outputted to the first touch electrodes N1 N N4 based on the initial pulse signal provided by the controller integrated circuit 920 to scan the first touch electrodes N1 N N4. Similarly, the second shift register strings (shift registers SR5~SR6, SR7~SR8) can generate/output drive pulse signals based on the start pulse signal provided by the controller integrated circuit 920. The third touch electrodes N17 to N20 are scanned to scan the third touch electrodes N17 to N20. During the same first period, the controller integrated circuit 920 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing terminals Ry1 R Ry8 , and the controller integrated circuit 920 can also pass the fourth axis The sensing terminals Ry13-Ry20 synchronously sense the fourth touch electrodes M13-M20 to detect a touch event in the first touch area and/or the second touch area of the touch panel 910.

For example, FIG. 10 is a schematic diagram showing signal timing of the touch device 900 shown in FIG. 9 according to an embodiment of the invention. The controller integrated circuit 920 provides a start pulse signal to the first shift register string (shift register SR1~SR2) and the first start pulse output terminal Vst1 and the second start pulse output terminal Vst3, respectively. Second shift temporary storage String (shift register SR5~SR6). According to the trigger timing of the clock signal outputted by the clock output terminal CLK and the inverted clock output terminal XCLK, and the start pulse signal provided based on the first start pulse output terminal Vst1 and the second start pulse output terminal Vst3, The bit buffers SR1 and SR5 can respectively generate/output drive pulses to the first touch electrode N1 and the third touch electrode N17 at time 1001, and the shift registers SR2 and SR6 can respectively generate/output drive at time 1002. The pulse is applied to the first touch electrode N2 and the third touch electrode N18 (as shown in FIG. 10). The controller integrated circuit 920 provides a start pulse signal to the first shift register string (shift register SR3~SR4) and the first start pulse output terminal Vst2 and the second start pulse output terminal Vst4, respectively. Two shift register strings (shift registers SR7~SR8). Based on the initial pulse signal provided by the first start pulse output terminal Vst2 and the second start pulse output terminal Vst4, the shift registers SR3 and SR7 can respectively generate/output drive pulses to the first touch electrode N3 at time 1003. And the third touch electrode N19, and the shift registers SR4 and SR8 can respectively generate/output drive pulses to the first touch electrode N4 and the third touch electrode N20 (as shown in FIG. 10) at time 1004.

When the main animal component (for example, an active stylus pen, not shown) approaches or contacts the first touch area or the second touch area of the touch panel 910 shown in FIG. 9, the main animal piece can provide a driving pulse signal to The first touch area or the second touch area. During the second period, the controller integrated circuit 920 can sense the first touch electrodes N1 N N4 through the first axis sensing ends Rx1 R Rx4 to detect the main animal parts (not shown) in the first touch area. a first axis position (eg, an X-axis position); and the controller integrated circuit 920 can sense the third touch electrode via the third axis sensing terminals Rx17 R Rx20 N17~N20 to detect the first axis position (for example, the X-axis position) of the main animal piece (not shown) in the second touch area. The first period does not overlap the second period. During the same second period, the controller integrated circuit 920 can synchronously sense the second touch electrodes M1 M M8 via the second axis sensing ends Ry1 R Ry8 to detect the main animal piece in the touch panel 910. a second axis position (for example, a Y-axis position) in a touch area; and the controller integrated circuit 920 can synchronously sense the fourth touch electrodes M13 to M20 via the fourth axis sensing ends Ry13 R to Ry20 to A second axial position (eg, a Y-axis position) of the primary animal in the second touch area of the touch panel 910 is detected.

FIG. 11 is a schematic circuit diagram of a touch device 1100 according to still another embodiment of the invention. The touch device 1100 includes a touch panel 1110 and a controller integrated circuit 1120. The touch panel 1110 and the controller integrated circuit 1120 shown in FIG. 11 can be similarly described with reference to FIGS. 1 to 6 for the touch panel 110 and the controller integrated circuit 120. Therefore, similar contents will not be described again. The touch panel 1110 has a plurality of first shift register strings, a plurality of second shift register strings, a plurality of third shift register strings, a plurality of fourth shift register strings, and a plurality of a first touch electrode, a plurality of second touch electrodes, a plurality of third touch electrodes, a plurality of fourth touch electrodes, a plurality of fifth shift register strings, a plurality of sixth touch electrodes, a plurality of seventh touch electrodes and a plurality of eighth touch electrodes. The number of the first touch electrodes, the number of the second touch electrodes, the number of the third touch electrodes, the number of the fourth touch electrodes, the number of the fifth touch electrodes, the number of the sixth touch electrodes, and the seventh The number of touch electrodes and/or the number of eighth touch electrodes can be determined according to product design requirements. For example, but not limited to, the touch panel 1110 shown in FIG. 11 has first touch electrodes N1, N2, and N3, N4, and having second touch electrodes M1, M2, M3, M4. The touch panel 1110 further has third touch electrodes N9, N10, N11, and N12, and has fourth touch electrodes M9, M10, M11, and M12. The touch panel 1110 further has fifth touch electrodes N21, N22, N23, and N24, and has sixth touch electrodes M21, M22, M23, and M24. The touch panel 1110 further has seventh touch electrodes N25, N26, N27, and N28, and has eighth touch electrodes M25, M26, M27, and M28.

Each of the plurality of first shift register strings, the second shift register string, the third shift register string, and the fourth shift register string includes a plurality of serially connected to each other Shift register. For example, but not limited to, the touch panel 1110 shown in FIG. 11 has two first shift register strings, that is, shift register SR1 and SR2 connected in series, and a serial shift Bit registers SR3 and SR4. The touch panel 1110 has two second shift register strings, that is, shift register SR9 and SR10 connected in series, and shift registers SR11 and SR12 connected in series. The touch panel 1110 has two third shift register strings, that is, shift register SR5 and SR6 connected in series, and shift register SR7 and SR8 connected in series. The touch panel 1110 has two fourth shift register strings, that is, shift register SR13 and SR14 connected in series, and shift registers SR15 and SR16 connected in series.

The first touch electrodes N1 to N4, the second touch electrodes M1 to M4, the third touch electrodes N9 to N12, the fourth touch electrodes M9 to M12, the fifth touch electrodes N21 to N24, and the sixth touch electrode The M21~M24, the seventh touch electrodes N25~N28, the eighth touch electrodes M25~M28, and the shift registers SR1~SR16 can be embedded in the touch panel 1110 through the same process. The shift registers SR1~SR16 may be The conventional shift register or other shift register is not limited in this embodiment. The output terminals of the shift registers SR1 to SR4 are connected to the first touch electrodes N1 to N4 in a one-to-one manner. The first touch electrodes N1 N N4 and the second touch electrodes M1 M M4 are interdigitated to form a first touch area. The outputs of the shift registers SR9~SR12 are connected to the third touch electrodes N9~N12 in a one-to-one manner. The third touch electrodes N9~N12 and the fourth touch electrodes M9~M12 are interdigitated to form a second touch area. The output terminals of the shift registers SR5 to SR8 are connected to the fifth touch electrodes N21 to N24 in a one-to-one manner. The fifth touch electrodes N21~N24 and the sixth touch electrodes M21~M24 are interdigitated to form a third touch area. The output terminals of the shift registers SR13 to SR16 are connected to the seventh touch electrodes N25 to N28 in a one-to-one manner. The seventh touch electrodes N25~N28 and the eighth touch electrodes M25~M28 are interdigitated to form a fourth touch area.

The controller integrated circuit 1120 has a plurality of first start pulse output ends, a plurality of second start pulse output ends, a plurality of third start pulse output ends, a plurality of fourth start pulse output ends, and a plurality of first The shaft sensing end, the plurality of second axis sensing ends, the plurality of third axis sensing ends, the plurality of fourth axis sensing ends, the plurality of fifth axis sensing ends, the plurality of sixth axis sensing ends, A plurality of seventh axis sensing ends and a plurality of eighth axis sensing ends. For example, but not limited to, the controller integrated circuit 1120 shown in FIG. 11 has first start pulse output terminals Vst1 and Vst2, and has first axis sense terminals Rx1, Rx2, Rx3, Rx4, and has the first Two-axis sensing terminals Ry1, Ry2, Ry3, Ry4. The first start pulse output terminals Vst1 and Vst2 are connected to different first shift register strings in a one-to-one manner. For example, the first start pulse output terminal Vst1 is connected to the input of the shift register SR1. And the first start pulse output terminal Vst2 is connected to the input terminal of the shift register SR3. The first axis sensing terminals Rx1 R Rx4 are connected to the first touch electrodes N1 N N4 in a one-to-one manner. The second axis sensing terminals Ry1 R Ry4 are connected to the second touch electrodes M1 M M4 in a one-to-one manner.

The controller integrated circuit 1120 further has second start pulse output terminals Vst5 and Vst6, and has third axis sensing terminals Rx9, Rx10, Rx11, Rx12, and fourth axis sensing terminals Ry9, Ry10, Ry11, Ry12. . The second start pulse output terminals Vst5 and Vst6 are connected to the different second shift register strings in a one-to-one manner. For example, the second start pulse output terminal Vst5 is connected to the input terminal of the shift register SR9, and the second start pulse output terminal Vst6 is connected to the input terminal of the shift register SR11. The third axis sensing terminals Rx9 to Rx12 are connected to the third touch electrodes N9 to N12 in a one-to-one manner. The fourth axis sensing terminals Ry9 to Ry12 are connected to the fourth touch electrodes M9 to M12 in a one-to-one manner.

The controller integrated circuit 1120 further has third start pulse output terminals Vst3 and Vst4, and has fifth axis sensing terminals Rx21, Rx22, Rx23, Rx24, and having sixth axis sensing terminals Ry21, Ry22, Ry23, Ry24. . The second start pulse output terminals Vst3 and Vst4 are connected to different third shift register strings in a one-to-one manner. For example, the third start pulse output terminal Vst3 is connected to the input terminal of the shift register SR5, and the third start pulse output terminal Vst4 is connected to the input terminal of the shift register SR7. The fifth axis sensing terminals Rx21 R Rx24 are connected to the fifth touch electrodes N21 N N24 in a one-to-one manner. The sixth axis sensing terminals Ry21 to Ry24 are connected to the sixth touch electrodes M21 to M24 in a one-to-one manner.

The controller integrated circuit 1120 further has fourth start pulse output terminals Vst7 and Vst8, and has seventh axis sense terminals Rx25, Rx26, Rx27, Rx28, and having eighth axis sense terminals Ry25, Ry26, Ry27, Ry28 . The second start pulse output terminals Vst73 and Vst8 are connected to different fourth shift register strings in a one-to-one manner. For example, the fourth start pulse output terminal Vst7 is connected to the input terminal of the shift register SR13, and the fourth start pulse output terminal Vst8 is connected to the input terminal of the shift register SR15. The seventh axis sensing terminals Rx25 to Rx28 are connected to the seventh touch electrodes N25 to N28 in a one-to-one manner. The eighth axis sensing terminals Ry25 to Ry28 are connected to the eighth touch electrodes M28 to M25 in a one-to-one manner.

The controller integrated circuit 1120 also has a clock output terminal CLK and an inverted clock output terminal XCLK. The clock output terminal CLK is coupled to the clock trigger terminals of the shift registers SR1 SR SR16 to provide a clock signal. The inverting clock output terminal XCLK is coupled to the clock trigger terminals of the shift registers SR1 SR SR16 to provide an inverted clock signal.

11 shows a plurality of first shift register strings (shift registers SR1 to SR4), a plurality of second shift register strings (shift registers SR9 to SR12), and a plurality of third For the signal timing of the shift register string (shift register SR5~SR8) and the plurality of fourth shift register strings (shift register SR13~SR16), refer to the related description of FIG. 1 to FIG. And analogy, so I won't go into details.

In summary, the embodiments of the present invention convert a start pulse signal provided by the controller integrated circuit into a plurality of driving pulse signals by using a shift register string of the touch panel to scan the touch panel. electrode. Therefore, under the premise of increasing the sensing resolution (increasing the number of touch electrodes of the touch panel), the embodiment of the present invention The touch device and the operation method thereof can effectively reduce the number of pins used by the controller integrated circuit to output a scan signal (pulse signal).

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧ touch device

110‧‧‧Touch panel

120‧‧‧Controller integrated circuit

CLK‧‧‧ clock output

M1~M8‧‧‧second touch electrode

N1~N8‧‧‧ first touch electrode

Rx1~Rx8‧‧‧first axis sensing end

Ry1~Ry8‧‧‧Second axis sensing end

SR1~SR8‧‧‧Shift register

TP1‧‧‧ touch point

Vst1~Vst4‧‧‧start pulse output

XCLK‧‧‧Inverted Clock Output

Claims (7)

  1. A touch device includes: a touch panel having a plurality of shift register strings, a plurality of first touch electrodes, and a plurality of second touch electrodes, wherein each of the shift register strings The plurality of shift registers are connected in series with each other, and the output ends of the shift registers are connected to the first touch electrodes in a one-to-one manner, and the first touch electrodes and the The second touch electrodes are interdigitated to form a touch area; and a controller integrated circuit has a plurality of initial pulse output ends, a plurality of first axis sensing ends and a plurality of second axis sensing ends, wherein The start pulse output ends are connected to the shift register strings in a one-to-one manner, and the first axis sense terminals are connected to the first touch electrodes in a one-to-one manner, and the first The two-axis sensing terminals are connected to the second touch electrodes in a one-to-one manner, wherein during a first period, the shift registers are based on a plurality of start pulse signals provided by the integrated circuit of the controller And outputting a plurality of driving pulse signals to the first touch electrodes to scan the first touch electrodes, and the The controller integrated circuit senses the second touch electrodes via the second axis sensing ends to detect a touch event in the touch area; during a second period, the controller integrated circuit passes The first axis sensing ends sense the first touch electrodes to detect a first axis position of the main animal piece in the touch area, and the controller integrated circuit senses through the second axes Sensing the second touch electrodes to detect a second axis position of the main animal component in the touch area; The first period does not overlap the second period.
  2. A touch device includes: a touch panel having a plurality of shift register strings, a plurality of first touch electrodes, a plurality of second touch electrodes, a plurality of second shift register strings, and a plurality of a third touch electrode and a plurality of fourth touch electrodes, wherein each of the shift register strings comprises a plurality of shift registers connected in series with each other, and outputs of the shift registers The first touch electrodes are interlaced with the second touch electrodes to form a touch area, and the second shift register strings are connected to the first touch electrodes. Each of the shift registers includes a plurality of shift registers connected in series with each other, and the outputs of the shift registers of the second shift register strings are connected to the third touches in a one-to-one manner The control electrode, and the third touch electrodes and the fourth touch electrodes are interdigitated to form a second touch area; and a controller integrated circuit having a plurality of start pulse outputs and a plurality of An axis sensing end, a plurality of second axis sensing ends, a plurality of second starting pulse output ends, a plurality of third axis sensing ends and a plurality of fourth axes a measuring terminal, wherein the starting pulse output ends are connected to the shift register strings in a one-to-one manner, and the first axis sensing ends are connected to the first touch electrodes in a one-to-one manner, The second axis sensing ends are connected to the second touch electrodes in a one-to-one manner, and the second start pulse output ends are connected to the second shift register strings in a one-to-one manner. The third axis sensing ends are connected to the third touch electrodes in a one-to-one manner, and the fourth axis sensing ends are connected to the fourth touch electrodes in a one-to-one manner.
  3. The touch device of claim 2, wherein During a first period, the shift registers of the second shift register strings output a plurality of drive pulse signals to the plurality of start pulse signals provided by the integrated circuit of the controller. The third touch electrode scans the third touch electrodes, and the integrated circuit of the controller senses the fourth touch electrodes via the fourth axis sensing ends to detect the second touch area. During a second period, the controller integrated circuit senses the third touch electrodes via the third axis sensing ends to detect a main animal component in the second touch area. a first axis position, and the controller integrated circuit senses the fourth touch electrodes via the fourth axis sensing ends to detect a second axis position of the main animal component in the second touch area And the first period does not overlap the second period.
  4. The touch device of claim 3, wherein when the controller integrated circuit detects the main animal in one of the touch area and the second touch area, the controller integrates The circuit disables the shift registers of the other of the touch area and the second touch area.
  5. A method for operating a touch device includes: providing a plurality of shift register strings, a plurality of first touch electrodes, and a plurality of second touch electrodes on a touch panel, wherein the shift register strings Each of the plurality of shift registers is connected in series with each other, and the outputs of the shift registers are connected to the first touch electrodes in a one-to-one manner, and the first touch electrodes Interlacing with the second touch electrodes to form a touch area; during a first period, the shift registers are based on a controller integrated circuit Providing a plurality of initial pulse signals to output a plurality of driving pulse signals to the first touch electrodes to scan the first touch electrodes; during the first period, the controller integrated circuit senses the The second touch electrodes are configured to detect a touch event in the touch area; and during a second period, the first touch electrodes are sensed by the integrated circuit of the controller to detect a main animal piece a first axis position of the touch area, wherein the first period does not overlap the second period; and during the second period, the second touch electrodes are sensed by the controller integrated circuit to Detecting a position of the main animal in a second axis of the touch area.
  6. The method of operating the touch device of claim 5, further comprising: providing a plurality of second shift register strings, a plurality of third touch electrodes, and a plurality of fourth touch electrodes a control panel, wherein each of the second shift register strings comprises a plurality of shift registers serially connected to each other, and the shift register of the second shift register strings The output end is connected to the third touch electrodes in a one-to-one manner, and the third touch electrodes and the fourth touch electrodes are interdigitated to form a second touch area; during the first period, The shift registeres of the second shift register strings output a plurality of drive pulse signals to the third touch electrodes based on the plurality of start pulse signals provided by the controller integrated circuit. The fourth touch electrodes are sensed by the integrated circuit of the controller to detect a touch event in the second touch area during the first period; During the second period, the third touch electrodes are sensed by the integrated circuit of the controller to detect a first axis position of the main animal in the second touch area; and during the second period, The fourth touch electrodes are sensed by the integrated circuit of the controller to detect a second axis position of the main animal component in the second touch area.
  7. The method of operating the touch device of claim 6, further comprising: when the integrated circuit of the controller detects the main animal in one of the touch area and the second touch area, The shift register of the other of the touch area and the second touch area is disabled by the controller integrated circuit.
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CN1956046A (en) * 2005-10-25 2007-05-02 群康科技(深圳)有限公司 Shift scratch system, method and liquid crystal display driving circuit
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