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TWI766437B - Touch module and control method thereof - Google Patents

Touch module and control method thereof Download PDF

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Publication number
TWI766437B
TWI766437B TW109139853A TW109139853A TWI766437B TW I766437 B TWI766437 B TW I766437B TW 109139853 A TW109139853 A TW 109139853A TW 109139853 A TW109139853 A TW 109139853A TW I766437 B TWI766437 B TW I766437B
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sensing units
multiplexer
touch
controller
sensing
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TW109139853A
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Chinese (zh)
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TW202221476A (en
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謝坤霖
曾玄文
林嘉興
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義隆電子股份有限公司
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Priority to TW109139853A priority Critical patent/TWI766437B/en
Priority to CN202011431156.7A priority patent/CN112527146B/en
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Publication of TW202221476A publication Critical patent/TW202221476A/en

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0383—Signal control means within the pointing device

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Electronic Switches (AREA)

Abstract

A touch module includes a touch device having a plurality of sensing units, a multiplexer coupled to the multiple sensing units, and a controller coupled to the multiplexer, wherein the plurality of sensing units are independent. During a first period, the controller controls the multiplexer to select a plurality of first sensing units and scans the plurality of first sensing units to generate a touch information, wherein the plurality of first sensing units are a part or all of the plurality of sensing units. During a second period, the controller controls the multiplexer to select at least one of the plurality of sensing units to send an uplink signal according to the touch information. The touch module can communicate with a stylus by the uplink signal.

Description

觸控模組及其控制方法Touch module and control method thereof

本發明是有關一種觸控模組及其控制方法。The present invention relates to a touch module and a control method thereof.

電容式觸控螢幕廣泛的被應用在各式的電子裝置，例如手機，平板電腦，筆記型電腦。使用者可以用手指在觸控螢幕上進行輸入。近年來，觸控筆也被發展出來，用於在觸控螢幕上進行輸入。觸控筆可以分成主動式觸控筆與被動式觸控筆。在某些協定中，觸控螢幕會需要發送信號給主動式觸控筆。Capacitive touch screens are widely used in various electronic devices, such as mobile phones, tablet computers, and notebook computers. Users can use their fingers to input on the touch screen. In recent years, stylus pens have also been developed for input on touchscreens. Stylus can be divided into active stylus and passive stylus. In some protocols, the touchscreen will need to send a signal to the active stylus.

本發明的目的之一，在於提出一種將多工器設置在觸控裝置的觸控模組及其控制方法。One of the objectives of the present invention is to provide a touch module with a multiplexer disposed on a touch device and a control method thereof.

根據本發明，一種觸控模組包括一觸控裝置、一多工器耦接該多個感測單元以及一控制器耦接該多工器。該觸控裝置具有多個感測單元，且該多個感測單元是各自獨立的。在一第一時段，該控制器控制該多工器以選擇多個第一感測單元，並且掃描該多個第一感測單元以獲得一觸控資訊，該多個第一感測單元是該多個感測單元的一部份或全部。在一第二時段，該控制器根據該觸控資訊控制該多工器選擇該多個感測單元的至少一個發送一上行信號，該上行信號係用於與一觸控筆溝通。其中該多工器可以設置在該觸控裝置上以減少觸控裝置與該控制器的接腳數量，進而降低成本。According to the present invention, a touch module includes a touch device, a multiplexer coupled to the plurality of sensing units, and a controller coupled to the multiplexer. The touch device has multiple sensing units, and the multiple sensing units are independent of each other. During a first period, the controller controls the multiplexer to select a plurality of first sensing units, and scans the plurality of first sensing units to obtain a touch information, and the plurality of first sensing units are a part or all of the plurality of sensing units. During a second period, the controller controls the multiplexer according to the touch information to select at least one of the plurality of sensing units to send an uplink signal, and the uplink signal is used for communicating with a touch pen. The multiplexer can be disposed on the touch device to reduce the number of pins of the touch device and the controller, thereby reducing the cost.

根據本發明，一種觸控模組的控制方法包括：在一第一時段，掃描多個第一感測單元以獲得一觸控資訊，其中該多個第一感測單元是觸控模組中觸控裝置的多個感測單元的一部份或全部，且該多個感測單元是各自獨立的；以及在一第二時段，根據該觸控資訊選擇該多個感測單元的至少一個發送一上行信號，該上行信號係用於與一觸控筆溝通。其中掃描多個第一感測單元的步驟包括利用一多工器從該多個感測單元中選擇該多個第一感測單元進行掃描。該多工器可以設置在該觸控裝置上。According to the present invention, a control method of a touch module includes: scanning a plurality of first sensing units in a first period to obtain touch information, wherein the plurality of first sensing units are in the touch module a part or all of a plurality of sensing units of the touch device, and the plurality of sensing units are independent; and during a second period, at least one of the plurality of sensing units is selected according to the touch information An uplink signal is sent, and the uplink signal is used to communicate with a stylus. The step of scanning the plurality of first sensing units includes using a multiplexer to select the plurality of first sensing units from the plurality of sensing units for scanning. The multiplexer can be arranged on the touch device.

本發明的觸控裝置將多工器可以設置在該觸控裝置以減少接腳數量及成本。此外，本發明的觸控裝置及其控制方法可以選擇由那些感測單元來發送上行信號，有助於降低耗電量。In the touch device of the present invention, a multiplexer can be provided in the touch device to reduce the number of pins and the cost. In addition, the touch device and the control method of the present invention can select those sensing units to send the uplink signal, which helps to reduce power consumption.

圖1顯示本發明觸控模組的實施例。在圖1中，觸控模組20包括一觸控裝置22及一控制器24。觸控裝置22具有多個獨立的感測單元221、一多工器222及一解碼器223。多工器222耦接多個感測單元221。解碼器223耦接多工器222及控制器24。根據來自控制器24的選擇信號Ss1，解碼器223產生選擇信號Ss2控制多工器222將多個感測單元221的其中至少一個連接至控制器24。在圖2中，解碼器223是設置在觸控裝置22中，但本發明並不限於此，例如解碼器223也可以設置在控制器24中。如果解碼器223設置在控制器24中，控制器24只會輸出選擇信號Ss2。控制器24耦接該多工器222，且具有多個主動前端電路(圖中未示)用以感測所連接的感測單元221的電容值以產生一感應量。控制器24的多個接腳241分別連接觸控裝置22的多個接線224，且多個接腳241也分別連接控制器24內部的多個主動前端電路。控制器24的接腳242連接觸控裝置22的接線225，且接腳242為接地或浮接。控制器24的多個接腳243分別透過觸控裝置22的接線226連接至解碼器223，多個接腳243是用以提供選擇信號Ss1給解碼器223。控制器24可以根據該多個主動前端電路所產生的感應量得到一觸控資訊，並根據該觸控資訊判斷是否有物件觸碰以及判斷物件的觸碰位置。FIG. 1 shows an embodiment of the touch module of the present invention. In FIG. 1 , the touch module 20 includes a touch device 22 and a controller 24 . The touch device 22 has a plurality of independent sensing units 221 , a multiplexer 222 and a decoder 223 . The multiplexer 222 is coupled to the plurality of sensing units 221 . The decoder 223 is coupled to the multiplexer 222 and the controller 24 . According to the selection signal Ss1 from the controller 24 , the decoder 223 generates the selection signal Ss2 to control the multiplexer 222 to connect at least one of the plurality of sensing units 221 to the controller 24 . In FIG. 2 , the decoder 223 is disposed in the touch device 22 , but the present invention is not limited thereto, for example, the decoder 223 may also be disposed in the controller 24 . If the decoder 223 is provided in the controller 24, the controller 24 only outputs the selection signal Ss2. The controller 24 is coupled to the multiplexer 222 and has a plurality of active front-end circuits (not shown in the figure) for sensing the capacitance value of the connected sensing unit 221 to generate an inductive amount. The plurality of pins 241 of the controller 24 are respectively connected to the plurality of wires 224 of the touch device 22 , and the plurality of pins 241 are also respectively connected to the plurality of active front-end circuits inside the controller 24 . The pin 242 of the controller 24 is connected to the wiring 225 of the touch device 22 , and the pin 242 is grounded or floating. The plurality of pins 243 of the controller 24 are respectively connected to the decoder 223 through the wires 226 of the touch device 22 , and the plurality of pins 243 are used to provide the selection signal Ss1 to the decoder 223 . The controller 24 can obtain a touch information according to the sensing quantities generated by the plurality of active front-end circuits, and determine whether an object touches and determine the touch position of the object according to the touch information.

圖2顯示圖1中觸控模組的控制方法的實施例。在一第一時段時，控制器24控制多工器222以選擇多個第一感測單元，並且掃描該多個第一感測單元以獲得一觸控資訊，該多個第一感測單元是多個感測單元221的一部份或全部，如圖2的步驟S10所示。該觸控資訊可以是包括例如感測單元221的感應量、一接觸物件的位置、物件的種類及/或觸控筆的出現等等。該控制器24每一次可以選擇一行、一列或一個矩陣的感測單元221以進行掃描。在該第一時段中，該控制器24可以是多次控制多工器222以掃描所有的感測單元221。在一第二時段時，控制器24根據該觸控資訊控制多工器222選擇多個感測單元221的至少一個發送一上行信號，如圖2的步驟S12所示。該上行信號係用於與一觸控筆溝通，其中可能包含頻率，識別資訊(ID)等等的資訊。FIG. 2 shows an embodiment of the control method of the touch module in FIG. 1 . During a first period, the controller 24 controls the multiplexer 222 to select a plurality of first sensing units, and scans the plurality of first sensing units to obtain a touch information, the plurality of first sensing units It is a part or all of the plurality of sensing units 221 , as shown in step S10 of FIG. 2 . The touch information may include, for example, the sensing amount of the sensing unit 221, the position of a contact object, the type of the object, and/or the appearance of a stylus pen, and the like. The controller 24 can select a row, a column or a matrix of the sensing cells 221 for scanning at a time. During the first period, the controller 24 may control the multiplexer 222 multiple times to scan all the sensing units 221 . During a second period, the controller 24 controls the multiplexer 222 to select at least one of the plurality of sensing units 221 to transmit an uplink signal according to the touch information, as shown in step S12 of FIG. 2 . The uplink signal is used to communicate with a stylus, and may include information such as frequency, identification information (ID), and so on.

圖3說明圖2中步驟S10的第一實施例。在第一時段期間，控制器24提供選擇信號Ss1=“100000”以控制多工器222將第一行C1的感測單元221連接至控制器24進行掃描，以獲得第一行C1的所有感測單元221的感應量。接下來，控制器24會再送出選擇信號Ss1=“010000” 以控制多工器222將第二行C2的感測單元221連接至控制器24進行掃描。依此類推，控制器24掃描完所有行的感測單元221後，根據所有感測單元221的感應量可以獲得該觸控資訊。在圖3的實施例中，該多個第一感測單元是指全部的感測單元221。每一行的感測單元221有6個。圖3的控制器24需要13支接腳，其中6支接腳241是用以連接要進行掃描的6個感測單元221，6支接腳243來是用來提供選擇信號Ss1，1支接腳242是用以讓感測單元221接地或浮接。FIG. 3 illustrates a first embodiment of step S10 in FIG. 2 . During the first period, the controller 24 provides the selection signal Ss1=“100000” to control the multiplexer 222 to connect the sensing units 221 of the first row C1 to the controller 24 for scanning, so as to obtain all the senses of the first row C1 The sensing amount of the measuring unit 221 is measured. Next, the controller 24 will send the selection signal Ss1=“010000” to control the multiplexer 222 to connect the sensing units 221 of the second row C2 to the controller 24 for scanning. By analogy, after the controller 24 scans the sensing units 221 in all rows, the touch information can be obtained according to the sensing quantities of all the sensing units 221 . In the embodiment of FIG. 3 , the plurality of first sensing units refer to all the sensing units 221 . There are six sensing units 221 in each row. The controller 24 of FIG. 3 needs 13 pins, of which the 6 pins 241 are used to connect the 6 sensing units 221 to be scanned, and the 6 pins 243 are used to provide the selection signal Ss1, and the 1 pin is used to connect The pin 242 is used for grounding or floating the sensing unit 221 .

將多工器222設置於觸控裝置22有助於減少控制器14的接腳數及降低成本。在圖3的實施例中，觸控裝置22具有36個感測單元221。如果多工器222設置在控制器24的內部，則控制器14必須提供至少36支接腳跟所有的感測單元221相連接。如此一來，控制器14的接腳數，成本也會提高。Disposing the multiplexer 222 on the touch device 22 helps to reduce the number of pins of the controller 14 and reduce the cost. In the embodiment of FIG. 3 , the touch device 22 has 36 sensing units 221 . If the multiplexer 222 is arranged inside the controller 24 , the controller 14 must provide at least 36 pins to be connected to all the sensing units 221 . As a result, the number of pins of the controller 14 and the cost will also increase.

圖4顯示圖3中多工器222的實施例。圖4只顯示多工器222的部分架構，多工器222的其他部分可由圖5揭示的內容推得。圖4的多工器222包含多個開關M1~M6及N1~N6。多個開關M1~M6的第一端分別連接第一行C1中的多個感測單元221，多個開關M1~M6的第二端分別連接觸控裝置22的多個接線224。多個開關N1~N6的第一端分別連接第二行C2中的多個感測單元221，多個開關N1~N6的第二端分別連接觸控裝置22的多個接線224。在來自解碼器223的信號D1為第一狀態(例如“1”)時，開關M1~M6導通以將第一行C1的多個感測單元221分別接至多個接線224。在信號D1為第二狀態(例如“0”)時，開關M1~M6將斷開第一行C1的多個感測單元221與多個接線224之間的連接。同樣的，在來自解碼器223的信號D2為第一狀態時，開關N1~N6導通以將第二行C2的多個感測單元221分別接至多個接線224。在信號D2為第二狀態時，開關N1~N6將斷開第二行C2的多個感測單元221與多個接線224之間的連接。FIG. 4 shows an embodiment of the multiplexer 222 of FIG. 3 . FIG. 4 only shows part of the structure of the multiplexer 222 , and other parts of the multiplexer 222 can be inferred from the content disclosed in FIG. 5 . The multiplexer 222 of FIG. 4 includes a plurality of switches M1 ˜ M6 and N1 ˜ N6 . First ends of the switches M1 to M6 are respectively connected to the sensing units 221 in the first row C1 , and second ends of the switches M1 to M6 are respectively connected to the wires 224 of the touch device 22 . The first terminals of the switches N1 - N6 are respectively connected to the sensing units 221 in the second row C2 , and the second terminals of the switches N1 - N6 are respectively connected to the wires 224 of the touch device 22 . When the signal D1 from the decoder 223 is in the first state (eg “1”), the switches M1 to M6 are turned on to connect the plurality of sensing units 221 of the first row C1 to the plurality of wires 224 respectively. When the signal D1 is in the second state (eg, "0"), the switches M1 to M6 will disconnect the connection between the plurality of sensing units 221 and the plurality of wires 224 in the first row C1. Likewise, when the signal D2 from the decoder 223 is in the first state, the switches N1 ˜ N6 are turned on to connect the plurality of sensing units 221 of the second row C2 to the plurality of wires 224 respectively. When the signal D2 is in the second state, the switches N1 ˜ N6 will disconnect the connection between the plurality of sensing units 221 and the plurality of wires 224 in the second row C2 .

圖5顯示圖4中開關M1的實施例，其具有一第一端、一第二端以及一第三端，該第一端連接一個感測單元221，該第二端連接至接線224，該第三端連接至接腳225。當信號D1為第一狀態 “1”時，開關M1將感測單元221連接至接線224。當信號D1為第二狀態 “0”時，開關M1將感測單元221連接至接腳225。其他開關M2~M6及N1~N6與開關M1類似，故不再贅述。多工器22的開關M1~M6及N1~N6可以在觸控裝置22的TFT製程一併形成，故無需增加額外的製程步驟。FIG. 5 shows an embodiment of the switch M1 in FIG. 4, which has a first end, a second end and a third end, the first end is connected to a sensing unit 221, the second end is connected to the wiring 224, the The third end is connected to the pin 225 . When the signal D1 is in the first state "1", the switch M1 connects the sensing unit 221 to the wiring 224. When the signal D1 is in the second state "0", the switch M1 connects the sensing unit 221 to the pin 225. The other switches M2-M6 and N1-N6 are similar to the switch M1, so they will not be described again. The switches M1 ˜ M6 and N1 ˜ N6 of the multiplexer 22 can be formed together in the TFT process of the touch device 22 , so there is no need to add additional process steps.

圖6說明圖2中步驟S10的第二實施例。在第一時段期間，控制器24提供選擇信號Ss1=“100000”以控制多工器222將第一列R1的感測單元221連接至控制器24進行掃描，以獲得第一列R1的所有感測單元221的感應量。接下來，控制器24會再送出選擇信號Ss1=“010000” 以控制多工器222將第二列R2的感測單元221連接至控制器24進行掃描。依此類推，控制器24掃描完所有列的感測單元221後，根據所有感測單元221的感應量可以獲得該觸控資訊。在圖6的實施例中，該多個第一感測單元是指全部的感測單元221。每一列的感測單元221有6個。圖6的控制器24需要13支接腳，其中6支接腳241是用以連接要進行掃描的6個感測單元221，6支接腳243來是用來提供選擇信號Ss，1支接腳242是用以讓感測單元221接地或浮接。FIG. 6 illustrates a second embodiment of step S10 in FIG. 2 . During the first period, the controller 24 provides the selection signal Ss1=“100000” to control the multiplexer 222 to connect the sensing units 221 of the first column R1 to the controller 24 for scanning, so as to obtain all the senses of the first column R1 The sensing amount of the measuring unit 221 is measured. Next, the controller 24 will send the selection signal Ss1=“010000” to control the multiplexer 222 to connect the sensing units 221 of the second row R2 to the controller 24 for scanning. By analogy, after the controller 24 scans the sensing units 221 in all rows, the touch information can be obtained according to the sensing quantities of all the sensing units 221 . In the embodiment of FIG. 6 , the plurality of first sensing units refer to all the sensing units 221 . There are six sensing units 221 in each column. The controller 24 of FIG. 6 needs 13 pins, of which the 6 pins 241 are used to connect the 6 sensing units 221 to be scanned, the 6 pins 243 are used to provide the selection signal Ss, and the 1 pin is connected to The pin 242 is used for grounding or floating the sensing unit 221 .

圖7顯示圖6中多工器222的實施例。圖7只顯示多工器222的部分架構，多工器222的其他部分可由圖7揭示的內容推得。圖8的多工器222包含多個開關M7~M12及N7~N12。多個開關M7~M12的第一端分別連接第一列R1中的多個感測單元221，多個開關M7~M12的第二端分別連接觸控裝置22的多個接線224。多個開關N7~N12的第一端分別連接第二列R2中的多個感測單元221，多個開關N7~N12的第二端分別連接觸控裝置22的多個接線224。在來自解碼器223的信號D7為第一狀態(例如“1”)時，開關M7~M12將第一列R1的多個感測單元221分別接至多個接線224。在信號D7為第二狀態(例如“0”)時，開關M7~M12將斷開第一列R1的多個感測單元221與多個接線224之間的連接。同樣的，在來自解碼器223的信號D8為第一狀態時，開關N7~N12將第二列R2的多個感測單元221分別接至多個接線224。在信號D8為第二狀態時，開關N7~N12將斷開第二列R2的多個感測單元221與多個接線224之間的連接。開關M7~M12及N7~N12的具體電路可以參照圖6。多工器22的開關M7~M12及N7~N12可以在觸控裝置22的TFT製程一併形成，故無需增加額外的製程步驟。FIG. 7 shows an embodiment of the multiplexer 222 of FIG. 6 . FIG. 7 only shows a part of the structure of the multiplexer 222 , and other parts of the multiplexer 222 can be derived from the content disclosed in FIG. 7 . The multiplexer 222 of FIG. 8 includes a plurality of switches M7 ˜ M12 and N7 ˜ N12 . First ends of the switches M7 - M12 are respectively connected to the sensing units 221 in the first row R1 , and second ends of the switches M7 - M12 are respectively connected to the wires 224 of the touch device 22 . The first ends of the switches N7 - N12 are respectively connected to the sensing units 221 in the second row R2 , and the second ends of the switches N7 - N12 are respectively connected to the wires 224 of the touch device 22 . When the signal D7 from the decoder 223 is in the first state (eg, "1"), the switches M7 to M12 connect the plurality of sensing units 221 of the first row R1 to the plurality of wires 224 respectively. When the signal D7 is in the second state (eg, "0"), the switches M7 ˜ M12 will disconnect the connections between the plurality of sensing units 221 and the plurality of wires 224 in the first row R1 . Similarly, when the signal D8 from the decoder 223 is in the first state, the switches N7 ˜ N12 connect the plurality of sensing units 221 of the second row R2 to the plurality of wires 224 respectively. When the signal D8 is in the second state, the switches N7 ˜ N12 will disconnect the connection between the plurality of sensing units 221 and the plurality of wires 224 in the second row R2 . The specific circuits of the switches M7-M12 and N7-N12 can refer to FIG. 6 . The switches M7 ˜ M12 and N7 ˜ N12 of the multiplexer 22 can be formed together in the TFT process of the touch device 22 , so there is no need to add additional process steps.

圖8顯示圖2中步驟S10的第三實施例。在第一時段期間，控制器24提供選擇信號Ss1=“111000111000”以控制多工器222將第一區塊Z1的所有感測單元221連接至控制器24進行掃描，以獲得第一區塊Z1的所有感測單元221的感應量，其中選擇信號Ss1的前6個位元表示要選取的行，後6個位元表示要選取的列。接下來，控制器24會再送出選擇信號Ss1=“000111111000” 以控制多工器222將第二區塊Z2的感測單元221連接至控制器24進行掃描。依此類推，控制器24掃描完所有區塊的感測單元221後，根據所有感測單元221的感應量可以獲得該觸控資訊。在圖8的實施例中，該多個第一感測單元是指全部的感測單元221。每一個區塊的感測單元221有9個。圖8的控制器24需要22支接腳，其中9支接腳241是用以連接要進行掃描的感測單元221，12支接腳243來是用來提供選擇信號Ss，1支接腳242是用以讓感測單元221接地或浮接。FIG. 8 shows a third embodiment of step S10 in FIG. 2 . During the first period, the controller 24 provides the selection signal Ss1="111000111000" to control the multiplexer 222 to connect all the sensing units 221 of the first block Z1 to the controller 24 for scanning to obtain the first block Z1 The sensing quantities of all the sensing units 221 of , wherein the first 6 bits of the selection signal Ss1 represent the row to be selected, and the last 6 bits represent the column to be selected. Next, the controller 24 will send the selection signal Ss1=“000111111000” to control the multiplexer 222 to connect the sensing unit 221 of the second block Z2 to the controller 24 for scanning. By analogy, after the controller 24 scans the sensing units 221 of all blocks, the touch information can be obtained according to the sensing quantities of all the sensing units 221 . In the embodiment of FIG. 8 , the plurality of first sensing units refer to all the sensing units 221 . There are nine sensing units 221 in each block. The controller 24 of FIG. 8 needs 22 pins, of which 9 pins 241 are used to connect the sensing unit 221 to be scanned, 12 pins 243 are used to provide the selection signal Ss, and 1 pin 242 It is used to ground or float the sensing unit 221 .

圖9顯示圖8中多工器222的實施例。圖9只顯示多工器222的部分架構，多工器222的其他部分可由圖9揭示的內容推得。圖9的多工器222包含多個開關L1~L18。多個開關L1~L9的第一端分別連接第一區塊Z1中的多個感測單元221，多個開關L1~L9的第二端分別連接觸控裝置22的多個接線224。多個開關L10~L18的第一端分別連接第二區塊Z2中的多個感測單元221，多個開關L10~L18的第二端分別連接觸控裝置22的多個接線224。每個開關連接在一區塊中一個感測單元221與一接線224之間。開關L1接收對應第一行感測單元221的信號D1及對應第一列感測單元221的信號D7，在信號D1與信號D7皆為第一狀態(例如“1”)時，開關L1將感測單元221接至接線224。在信號D1及信號D7其中至少一個為第二狀態(例如“0”)時，開關L1將斷開感測單元221與接線224之間的連接。同樣的，在對應第一行感測單元221的信號D1及對應第二列感測單元221的信號D8皆為第一狀態(例如“1”)時，開關L2將感測單元221連接至接線224。在信號D1及信號D8其中至少一個為第二狀態時(例如“0”)，開關L2將斷開感測單元221與接線224之間的連接。其他開關L3~L18的操作方式類似於開關L1及L2，故不再贅述。多工器22的開關L1~L18可以在觸控裝置22的TFT製程一併形成，故無需增加額外的製程步驟。FIG. 9 shows an embodiment of the multiplexer 222 of FIG. 8 . FIG. 9 only shows part of the structure of the multiplexer 222 , and other parts of the multiplexer 222 can be derived from the content disclosed in FIG. 9 . The multiplexer 222 of FIG. 9 includes a plurality of switches L1 to L18. The first ends of the switches L1 to L9 are respectively connected to the sensing units 221 in the first block Z1 , and the second ends of the switches L1 to L9 are respectively connected to the wires 224 of the touch device 22 . First ends of the switches L10 - L18 are respectively connected to the sensing units 221 in the second block Z2 , and second ends of the switches L10 - L18 are respectively connected to the wires 224 of the touch device 22 . Each switch is connected between a sensing unit 221 and a wire 224 in a block. The switch L1 receives the signal D1 corresponding to the sensing unit 221 of the first row and the signal D7 corresponding to the sensing unit 221 of the first column. When both the signal D1 and the signal D7 are in the first state (eg “1”), the switch L1 will sense. The measuring unit 221 is connected to the wiring 224 . When at least one of the signal D1 and the signal D7 is in the second state (eg, "0"), the switch L1 will disconnect the connection between the sensing unit 221 and the wiring 224 . Similarly, when the signal D1 corresponding to the first row sensing unit 221 and the signal D8 corresponding to the second column sensing unit 221 are both in the first state (eg “1”), the switch L2 connects the sensing unit 221 to the wiring 224. When at least one of the signal D1 and the signal D8 is in the second state (eg "0"), the switch L2 will disconnect the connection between the sensing unit 221 and the wiring 224 . The operation modes of the other switches L3 to L18 are similar to those of the switches L1 and L2, so they are not repeated here. The switches L1 ˜ L18 of the multiplexer 22 can be formed together with the TFT process of the touch device 22 , so there is no need to add additional process steps.

圖10顯示圖9中開關L1的實施例，其包括子開關Ls1及子開關Ls2。子開關Ls1具有一第一端連接感測單元221、一第二端連接至子開關Ls2以及一第三端連接至接線225。子開關Ls2具有一第一端連接子開關Ls1的第二端、一第二端連接至接線224以及一第三端連接至接線225。當信號D1為第一狀態 “1”時，子開關Ls1將感測單元221連接至子開關Ls2。當信號D1為第二狀態 “0”時，子開關Ls1將感測單元221連接至接線225。當信號D7為第一狀態 “1”時，子開關Ls2將子開關Ls1的第二端連接至接線224。當信號D7為第二狀態 “0”時，子開關Ls2將子開關Ls1的第二端連接至接線225。其他開關L2~L18及N1~N6與開關L1類似，故不再贅述。FIG. 10 shows an embodiment of the switch L1 in FIG. 9, which includes a sub-switch Ls1 and a sub-switch Ls2. The sub-switch Ls1 has a first terminal connected to the sensing unit 221 , a second terminal connected to the sub-switch Ls2 and a third terminal connected to the wiring 225 . The sub-switch Ls2 has a first terminal connected to the second terminal of the sub-switch Ls1 , a second terminal connected to the wiring 224 and a third terminal connected to the wiring 225 . When the signal D1 is in the first state "1", the sub-switch Ls1 connects the sensing unit 221 to the sub-switch Ls2. When the signal D1 is in the second state "0", the sub-switch Ls1 connects the sensing unit 221 to the wiring 225. When the signal D7 is in the first state "1", the sub-switch Ls2 connects the second terminal of the sub-switch Ls1 to the connection 224. When the signal D7 is in the second state "0", the sub-switch Ls2 connects the second terminal of the sub-switch Ls1 to the connection 225. The other switches L2-L18 and N1-N6 are similar to the switch L1, so they are not repeated here.

在前述的圖1、圖3、圖6及圖8中，解碼器223具有多個輸入端同時接收選擇信號Ss1的多個資料以產生選擇信號Ss2，但本發明不限於此，例如解碼器223可以只有一個輸入端依序接收選擇信號Ss1的多個資料。如圖11所示，假設一個選擇信號Ss1由六個信號E1、E2、E3、E4、E5與E6所組成，控制器24依序從接腳243送出信號E1、E2、E3、E4、E5與E6給解碼器223。解碼器223根據收到的六個信號E1、E2、E3、E4、E5與E6據以產生對應的選擇信號Ss2至多工器222以選擇要掃描的感測單元221(圖中未示)。例如，當信號E1、E2、E3、E4、E5與E6分別為“0”、“0”、“0”、“0”、“0”及“1”時，解碼器223產生對應的選擇信號Ss2=“000001”給多工器222。多工器222依據選擇信號Ss2=“000001”將第六列或第六行的感測單元221連接至控制器24以進行掃描。In the aforementioned FIG. 1 , FIG. 3 , FIG. 6 and FIG. 8 , the decoder 223 has multiple input terminals to simultaneously receive multiple data of the selection signal Ss1 to generate the selection signal Ss2 , but the present invention is not limited thereto, for example, the decoder 223 Only one input terminal may receive multiple data of the selection signal Ss1 in sequence. As shown in FIG. 11 , assuming that a selection signal Ss1 consists of six signals E1, E2, E3, E4, E5 and E6, the controller 24 sends the signals E1, E2, E3, E4, E5 and E6 to the decoder 223. The decoder 223 generates a corresponding selection signal Ss2 to the multiplexer 222 according to the received six signals E1, E2, E3, E4, E5 and E6 to select the sensing unit 221 to be scanned (not shown in the figure). For example, when the signals E1, E2, E3, E4, E5 and E6 are "0", "0", "0", "0", "0" and "1", respectively, the decoder 223 generates the corresponding selection signal Ss2="000001" to the multiplexer 222. The multiplexer 222 connects the sensing units 221 in the sixth column or the sixth row to the controller 24 for scanning according to the selection signal Ss2=“000001”.

在圖8的實施例中，控制器24透過觸控資訊判斷出物件位置(例如觸控筆的位置)。控制器24可以進一步根據物件位置決定選擇信號Ss1，以使多工器222將該物件位置鄰近的多個第一感測單元連接至控制器進行掃描。在此情況下，被選取的該多個第一感測單元為多個感測單元221的一部分。由於無需掃描所有感測單元221，因此控制器24可以快速且即時的追蹤物件的位置。如圖12所示，控制器24透過觸控資訊判斷出一觸控筆位於位置A1。根據該位置A1，控制器24將控制多工器222選取位置A1所在的區塊Z3內的多個感測單元221進行掃描以追蹤觸控筆的移動。當控制器24判斷觸控筆移動到位置A2時，控制器24將控制多工器222選取位置A2所在的區塊Z4內的多個感測單元221進行掃描以持續追蹤觸控筆的移動。區塊Z3與Z4具有相同的大小(3×3個感測單元221)，都包括9個感測單元。決定區塊Z3或Z4的方式可以是例如根據觸控筆的位置為中心，決定一個包括3×3個感測單元221的區塊。In the embodiment of FIG. 8 , the controller 24 determines the position of the object (eg, the position of the stylus) through touch information. The controller 24 can further determine the selection signal Ss1 according to the position of the object, so that the multiplexer 222 connects a plurality of first sensing units adjacent to the position of the object to the controller for scanning. In this case, the selected first sensing units are part of the sensing units 221 . Since there is no need to scan all the sensing units 221, the controller 24 can quickly and instantly track the position of the object. As shown in FIG. 12 , the controller 24 determines that a stylus is located at the position A1 through the touch information. According to the position A1 , the controller 24 controls the multiplexer 222 to select the plurality of sensing units 221 in the block Z3 where the position A1 is located to scan to track the movement of the stylus. When the controller 24 determines that the stylus moves to the position A2, the controller 24 controls the multiplexer 222 to select the plurality of sensing units 221 in the block Z4 where the position A2 is located to scan to continuously track the movement of the stylus. Blocks Z3 and Z4 have the same size (3×3 sensing units 221 ), and both include 9 sensing units. The manner of determining the block Z3 or Z4 may be, for example, to determine a block including 3×3 sensing units 221 according to the position of the stylus as the center.

圖13說明圖2所示方法的第一實施例。步驟S10所獲得的觸控資訊包括一觸控筆的出現。步驟S12包括在一第二時段期間，控制器24根據步驟S10獲得的觸控資訊，也就是一觸控筆的出現，控制多工器222從多個感測單元221中選擇一個或多個感測單元221作為發射單元Tx1來發送上行信號給該觸控筆。未被選取的感測單元221將被連接至接腳242而處於接地或浮接狀態。作為發射單元Tx1的感測單元221的數量可以根據觸控筆所能接收的最大能量來決定，進而避免能量浪費。在圖13的實施例中，發射單元Tx1之間會間隔一個感測單元221，但本發明並不限於此，例如可以選擇第一行及第二行的感測單元221作為發射單元Tx1，或是選擇第一列及第二列的感測單元221作為發射單元Tx1。FIG. 13 illustrates a first embodiment of the method shown in FIG. 2 . The touch information obtained in step S10 includes the appearance of a stylus. Step S12 includes during a second period, the controller 24 controls the multiplexer 222 to select one or more sensors from the plurality of sensing units 221 according to the touch information obtained in step S10, that is, the presence of a touch pen. The measuring unit 221 acts as the transmitting unit Tx1 to send the uplink signal to the stylus. The unselected sensing units 221 will be connected to the pins 242 in a grounded or floating state. The number of the sensing units 221 serving as the transmitting unit Tx1 can be determined according to the maximum energy that the stylus can receive, thereby avoiding energy waste. In the embodiment of FIG. 13, a sensing unit 221 is separated between the transmitting units Tx1, but the present invention is not limited to this. For example, the sensing units 221 in the first row and the second row can be selected as the transmitting units Tx1, or The sensing units 221 in the first column and the second column are selected as the transmitting unit Tx1.

圖14說明圖2所示方法的第二實施例。在步驟S10中，觸控資訊包括一觸控筆40的位置。步驟S12包括在第二時段期間，控制器24可以根據在步驟S10獲得的觸控資訊，也就是觸控筆40的位置，控制多工器222從多個感測單元221中選擇至少一個感測單元221作為發射單元Tx1來發送上行信號。例如，控制器24可以選擇觸控筆40所在位置的感測單元2211作為發射單元Tx1，或者選擇觸控筆40所在位置的感測單元2211以及觸控筆40的位置附近的感測單元2212作為發射單元Tx1。未被選取的感測單元221將被連接至接腳242而處於接地或浮接狀態。作為發射單元Tx1的感測單元2211及2212的數量可以根據觸控筆所能接收的最大能量來決定，進而避免能量浪費。FIG. 14 illustrates a second embodiment of the method shown in FIG. 2 . In step S10 , the touch information includes the position of a stylus 40 . Step S12 includes that during the second period, the controller 24 may control the multiplexer 222 to select at least one sensing element from the plurality of sensing units 221 according to the touch information obtained in step S10 , that is, the position of the stylus 40 . The unit 221 transmits the uplink signal as the transmitting unit Tx1. For example, the controller 24 can select the sensing unit 2211 where the stylus 40 is located as the transmitting unit Tx1, or select the sensing unit 2211 where the stylus 40 is located and the sensing units 2212 near the location of the stylus 40 as the transmitting unit Tx1 Transmitting unit Tx1. The unselected sensing units 221 will be connected to the pins 242 in a grounded or floating state. The number of the sensing units 2211 and 2212 serving as the transmitting unit Tx1 can be determined according to the maximum energy that the touch pen can receive, thereby avoiding energy waste.

圖15說明圖2所示方法的第三實施例。步驟S10所獲得的觸控資訊包括接觸物件為手掌，以及該手掌的接觸區域42。步驟S12包括在一第二時段期間，控制器24根據在步驟S10獲得的觸控資訊，也就是該手掌接觸區域42，選擇手掌接觸區域42以外的至少一感測單元2213作為發射單元Tx1來發送上行信號給一觸控筆。同時，控制器24可以控制多工器222將手掌接觸區域42的感測單元2214連接至接腳242，使得感測單元2214處於接地或浮接狀態。在這個實施例中，手掌接觸區域42內的感測單元2214不會被施加上行信號，可以避免上行信號經使用者的手掌影響觸控筆的接地電位。作為發射單元Tx1的感測單元2213的數量可以根據觸控筆所能接收的最大能量來決定，進而避免能量浪費。FIG. 15 illustrates a third embodiment of the method shown in FIG. 2 . The touch information obtained in step S10 includes that the contact object is the palm, and the contact area 42 of the palm. Step S12 includes during a second period, the controller 24 selects at least one sensing unit 2213 outside the palm contact area 42 as the transmitting unit Tx1 to transmit according to the touch information obtained in step S10, that is, the palm contact area 42 Uplink signal to a stylus. Meanwhile, the controller 24 can control the multiplexer 222 to connect the sensing unit 2214 of the palm contact area 42 to the pin 242, so that the sensing unit 2214 is in a grounding or floating state. In this embodiment, the sensing unit 2214 in the palm contact area 42 is not applied with an upward signal, which can prevent the upward signal from affecting the ground potential of the stylus through the user's palm. The number of the sensing units 2213 serving as the transmitting unit Tx1 can be determined according to the maximum energy that the touch pen can receive, thereby avoiding energy waste.

以上對於本發明之較佳實施例所作的敘述係為闡明之目的，而無意限定本發明精確地為所揭露的形式，基於以上的教導或從本發明的實施例學習而作修改或變化是可能的，實施例係為解說本發明的原理以及讓熟習該項技術者以各種實施例利用本發明在實際應用上而選擇及敘述，本發明的技術思想企圖由之後的申請專利範圍及其均等來決定。The above description of the preferred embodiments of the present invention is for the purpose of illustration, and is not intended to limit the present invention to the exact form disclosed. Modifications or changes are possible based on the above teachings or learning from the embodiments of the present invention. The embodiments are selected and described in order to illustrate the principle of the present invention and allow those who are familiar with the technology to use the present invention in practical applications with various embodiments. Decide.

20．．．觸控模組 22．．．觸控裝置 221．．．感測單元 2211．．．感測單元 2212．．．感測單元 2213．．．感測單元 2214．．．感測單元 222．．．多工器 223．．．解碼器 224．．．接線 225．．．接腳 226．．．接腳 24．．．控制器 241．．．接腳 242．．．接腳 243．．．接腳 40．．．觸控筆 A1．．．位置 A2．．．位置 C1．．．第一行 C2．．．第二行 D1．．．信號 D2．．．信號 D3．．．信號 D4．．．信號 D5．．．信號 D6．．．信號 D7．．．信號 D8．．．信號 D9．．．信號 D10．．．信號 D11．．．信號 D12．．．信號 E1．．．信號 E2．．．信號 E3．．．信號 E4．．．信號 E5．．．信號 E6．．．信號 M1．．．開關 Ss1．．．選擇信號 Ss2．．．選擇信號 M1．．．開關 M2．．．開關 M3．．．開關 M4．．．開關 M5．．．開關 M6．．．開關 M7．．．開關 M8．．．開關 M9．．．開關 M10．．．開關 M11．．．開關 M12．．．開關 L1．．．開關 L2．．．開關 L3．．．開關 L4．．．開關 L5．．．開關 L6．．．開關 L7．．．開關 L8．．．開關 L9．．．開關 L10．．．開關 L11．．．開關 L12．．．開關 L13．．．開關 L14．．．開關 L15．．．開關 L16．．．開關 L17．．．開關 L18．．．開關 Ls1．．．子開關 Ls2．．．子開關 N1．．．開關 N2．．．開關 N3．．．開關 N4．．．開關 N5．．．開關 N6．．．開關 N7．．．開關 N8．．．開關 N9．．．開關 N10．．．開關 N11．．．開關 N12．．．開關 R1．．．第一列 R2．．．第二列 Tx1．．．發射單元 Z1．．．第一區塊 Z2．．．第二區塊 Z3．．．區塊 Z4．．．區塊 20. ． ． touch module twenty two. ． ． touch device 221． ． ． sensing unit 2211． ． ． sensing unit 2212． ． ． sensing unit 2213． ． ． sensing unit 2214． ． ． sensing unit 222． ． ． Multiplexer 223． ． ． decoder 224． ． ． wiring 225． ． ． pin 226． ． ． pin twenty four. ． ． controller 241． ． ． pin 242． ． ． pin 243． ． ． pin 40. ． ． Stylus A1. ． ． Location A2. ． ． Location C1. ． ． first row C2. ． ． second line D1. ． ． Signal D2. ． ． Signal D3. ． ． Signal D4. ． ． Signal D5. ． ． Signal D6. ． ． Signal D7. ． ． Signal D8. ． ． Signal D9. ． ． Signal D10. ． ． Signal D11. ． ． Signal D12. ． ． Signal E1. ． ． Signal E2. ． ． Signal E3. ． ． Signal E4. ． ． Signal E5. ． ． Signal E6. ． ． Signal M1. ． ． switch Ss1. ． ． select signal Ss2. ． ． select signal M1. ． ． switch M2. ． ． switch M3. ． ． switch M4. ． ． switch M5. ． ． switch M6. ． ． switch M7. ． ． switch M8. ． ． switch M9. ． ． switch M10. ． ． switch M11. ． ． switch M12. ． ． switch L1. ． ． switch L2. ． ． switch L3. ． ． switch L4. ． ． switch L5. ． ． switch L6. ． ． switch L7. ． ． switch L8. ． ． switch L9. ． ． switch L10. ． ． switch L11. ． ． switch L12. ． ． switch L13. ． ． switch L14. ． ． switch L15. ． ． switch L16. ． ． switch L17. ． ． switch L18. ． ． switch Ls1. ． ． sub switch Ls2. ． ． sub switch N1. ． ． switch N2. ． ． switch N3. ． ． switch N4. ． ． switch N5. ． ． switch N6. ． ． switch N7. ． ． switch N8. ． ． switch N9. ． ． switch N10. ． ． switch N11. ． ． switch N12. ． ． switch R1. ． ． first row R2. ． ． the second list Tx1. ． ． launch unit Z1. ． ． first block Z2. ． ． second block Z3. ． ． block Z4. ． ． block

圖1顯示本發明觸控模組的實施例。 圖2顯示圖1中觸控模組的控制方法的實施例。 圖3顯示圖2中步驟S10的第一實施例。 圖4顯示圖3中多工器的實施例。 圖5顯示圖4中開關M1的實施例。 圖6顯示圖2中步驟S10的第二實施例。 圖7顯示圖6中多工器222的實施例。 圖8顯示圖2中步驟S10的第三實施例。 圖9顯示圖8中多工器222的實施例。 圖10顯示圖9中開關L1的實施例。 圖11顯示解碼器的另一實施例。 圖12顯示本發明物件軌跡追蹤的實施例。 圖13顯示圖2中步驟S12的第一實施例。 圖14顯示圖2中步驟S12的第二實施例。 圖15顯示圖2中步驟S12的第三實施例。 FIG. 1 shows an embodiment of the touch module of the present invention. FIG. 2 shows an embodiment of the control method of the touch module in FIG. 1 . FIG. 3 shows a first embodiment of step S10 in FIG. 2 . FIG. 4 shows an embodiment of the multiplexer of FIG. 3 . FIG. 5 shows an embodiment of the switch M1 in FIG. 4 . FIG. 6 shows a second embodiment of step S10 in FIG. 2 . FIG. 7 shows an embodiment of the multiplexer 222 of FIG. 6 . FIG. 8 shows a third embodiment of step S10 in FIG. 2 . FIG. 9 shows an embodiment of the multiplexer 222 of FIG. 8 . FIG. 10 shows an embodiment of switch L1 in FIG. 9 . Figure 11 shows another embodiment of a decoder. FIG. 12 shows an embodiment of object trajectory tracking according to the present invention. FIG. 13 shows the first embodiment of step S12 in FIG. 2 . FIG. 14 shows a second embodiment of step S12 in FIG. 2 . FIG. 15 shows a third embodiment of step S12 in FIG. 2 .

Claims (13)

一種觸控模組，包括：一觸控裝置，具有多個感測單元，該多個感測單元是各自獨立的；一多工器，耦接該多個感測單元，且設置在該觸控裝置上；以及一控制器，耦接該多工器；其中，在一第一時段，該控制器控制該多工器以選擇多個第一感測單元，並且掃描該多個第一感測單元以獲得一觸控資訊，該多個第一感測單元是該多個感測單元的一部份或全部；其中，在一第二時段，該控制器根據該觸控資訊控制該多工器選擇該多個感測單元的至少一個發送一上行信號，該上行信號係用於與一觸控筆溝通。 A touch module, comprising: a touch device with a plurality of sensing units, the plurality of sensing units are independent of each other; a multiplexer, coupled to the plurality of sensing units, and disposed on the touch and a controller coupled to the multiplexer; wherein, during a first period, the controller controls the multiplexer to select a plurality of first sensing units and scan the plurality of first sensing units The sensing unit obtains a touch information, and the plurality of first sensing units are a part or all of the plurality of sensing units; wherein, in a second period, the controller controls the multiple sensing units according to the touch information The processor selects at least one of the plurality of sensing units to send an uplink signal, and the uplink signal is used to communicate with a touch pen. 如請求項1的觸控模組，其中該多工器具有多個開關分別連接該多個感測單元，該多個開關是在觸控裝置的TFT製程一併形成。 The touch module of claim 1, wherein the multiplexer has a plurality of switches respectively connected to the plurality of sensing units, and the plurality of switches are formed together in a TFT process of the touch device. 如請求項1的觸控模組，更包括一解碼器，連接該多工器及該控制器，根據來自該控制器的一選擇信號控制該多工器將該多個感測單元的至少一個連接至該控制器。 The touch module of claim 1, further comprising a decoder connected to the multiplexer and the controller, and controlling the multiplexer to control at least one of the plurality of sensing units according to a selection signal from the controller connected to the controller. 如請求項1的觸控模組，其中該控制器根據一觸控筆的位置決定該多工器所要選擇的該多個第一感測單元。 The touch module of claim 1, wherein the controller determines the plurality of first sensing units to be selected by the multiplexer according to the position of a touch pen. 如請求項1的觸控模組，其中該觸控資訊包括一手掌接觸區域，該控制器根據該觸控資訊控制該多工器選擇選擇該手掌接觸區域以外的至少一個該感測單元發送該上行訊號。 The touch module of claim 1, wherein the touch information includes a palm contact area, and the controller controls the multiplexer according to the touch information to select at least one of the sensing units other than the palm contact area to send the Up signal. 如請求項5的觸控模組，其中該控制器根據該觸控資訊控制該多工器將該手掌接觸區域的感測單元浮接或連接至一接地端。 The touch module of claim 5, wherein the controller controls the multiplexer to float or connect the sensing unit of the palm contact area to a ground terminal according to the touch information. 如請求項1的觸控模組，其中該觸控資訊包括一觸控筆位置，控 制器根據該觸控筆位置選擇至少一個該感測單元發送該上行訊號。 The touch module of claim 1, wherein the touch information includes a stylus position, and the control The controller selects at least one of the sensing units to send the uplink signal according to the position of the stylus. 一種觸控模組的控制方法，該觸控模組包含一觸控裝置具有多個感測單元，該多個感測單元是各自獨立的，該控制方法包括下列步驟：A.在一第一時段，掃描多個第一感測單元以獲得一觸控資訊，該多個第一感測單元是該多個感測單元的一部份或全部；以及B.在一第二時段，根據該觸控資訊選擇該多個感測單元的至少一個發送一上行信號，該上行信號係用於與一觸控筆溝通；其中，該步驟A包括利用一多工器從該多個感測單元中選擇該多個第一感測單元進行掃描，該步驟B包括利用該多工器選擇該多個感測單元的至少一個；其中，該多工器是設置在該觸控裝置上。 A control method of a touch module, the touch module includes a touch device with a plurality of sensing units, the plurality of sensing units are independent of each other, and the control method includes the following steps: A. A first period, scanning a plurality of first sensing units to obtain a touch information, the plurality of first sensing units are a part or all of the plurality of sensing units; and B. a second period, according to the The touch information selects at least one of the plurality of sensing units to send an uplink signal, and the uplink signal is used to communicate with a stylus; wherein, the step A includes using a multiplexer from the plurality of sensing units. Selecting the plurality of first sensing units for scanning, the step B includes using the multiplexer to select at least one of the plurality of sensing units; wherein the multiplexer is disposed on the touch device. 如請求項8的控制方法，其中該多工器具有多個開關分別連接該多個感測單元，該多個開關是在觸控裝置的TFT製程一併形成。 The control method of claim 8, wherein the multiplexer has a plurality of switches respectively connected to the plurality of sensing units, and the plurality of switches are formed together in a TFT process of the touch device. 如請求項8的控制方法，其中該步驟A包括：根據一觸控筆的位置決定該多工器所要選擇的該多個第一感測單元。 The control method of claim 8, wherein the step A comprises: determining the plurality of first sensing units to be selected by the multiplexer according to the position of a stylus. 如請求項8的控制方法，其中該觸控資訊包括一手掌接觸區域，該步驟B包括選擇該手掌接觸區域以外的至少一個該感測單元發送該上行訊號。 The control method of claim 8, wherein the touch information includes a palm contact area, and step B includes selecting at least one of the sensing units outside the palm contact area to send the uplink signal. 如請求項11的控制方法，其中該步驟B更包括將該手掌接觸區域的感測單元浮接或連接至一接地端。 The control method of claim 11, wherein the step B further comprises floating or connecting the sensing unit of the palm contact area to a ground terminal. 如請求項8的控制方法，其中該觸控資訊包括一觸控筆位置，該步驟B包括根據該觸控筆位置選擇至少一個該感測單元發送該上行 訊號。 The control method of claim 8, wherein the touch information includes a stylus position, and step B includes selecting at least one of the sensing units to transmit the uplink according to the stylus position signal.
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