TWI552030B - Method for detecting an active pen on a touch device and the touch device - Google Patents
Method for detecting an active pen on a touch device and the touch device Download PDFInfo
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- TWI552030B TWI552030B TW104123991A TW104123991A TWI552030B TW I552030 B TWI552030 B TW I552030B TW 104123991 A TW104123991 A TW 104123991A TW 104123991 A TW104123991 A TW 104123991A TW I552030 B TWI552030 B TW I552030B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Description
本發明關於一種觸控裝置及其偵測方法，尤指一種在觸控裝置上偵測主動式觸控筆的方法。The present invention relates to a touch device and a method for detecting the same, and more particularly to a method for detecting an active stylus on a touch device.
常見的觸控輸入方式包含有以手指或觸控筆(stylus)觸碰一觸控面板，觸控筆的工作原理是利用感測觸控筆與觸控面板之間的電容量，判斷觸控筆的觸碰位置。A common touch input method includes touching a touch panel with a finger or a stylus. The stylus works by sensing the capacitance between the stylus and the touch panel to determine the touch. The touch position of the pen.
觸控筆的種類主要分為主動式觸控筆及被動式觸控筆。主動式觸控筆具有發出驅動信號的能力，內部具有一發射電路，當主動式觸控筆接近電容式觸控面板時，由發射電路送出驅動訊號使電容式觸控面板產生電容變化，根據該電容變化即可計算該主動式觸控筆之觸控位置。The types of stylus are mainly divided into active stylus and passive stylus. The active stylus has the ability to emit a driving signal, and has a transmitting circuit inside. When the active stylus approaches the capacitive touch panel, the driving signal is sent by the transmitting circuit to cause the capacitive touch panel to generate a capacitance change, according to the The touch position of the active stylus can be calculated by changing the capacitance.
如圖5所示的電容式觸控面板，係具有複數個呈行、列交錯排列的獨立感應電極90，各該感應電極90耦接一條獨立的導線。當主動式觸控筆應用於在此類型的電容式觸控面板時，傳統的掃描方式是逐一讀取各感應電極90的電容量，再根據各感應電極90的電容量計算主動式觸控筆之位置。但此種掃描方式需要花費較多時間。當觸控面板的尺寸加大時，感應電極的數量會增加，現有的掃描方法也會花費更多的時間，因此有必要針對上述方法進行改良。The capacitive touch panel shown in FIG. 5 has a plurality of independent sensing electrodes 90 arranged in a row and a column, and each of the sensing electrodes 90 is coupled to a separate wire. When the active stylus is applied to this type of capacitive touch panel, the conventional scanning method reads the capacitance of each sensing electrode 90 one by one, and then calculates the active stylus according to the capacitance of each sensing electrode 90. The location. However, this scanning method takes more time. When the size of the touch panel is increased, the number of sensing electrodes is increased, and the existing scanning method takes more time, so it is necessary to improve the above method.
本發明之主要目的是提供一種在觸控裝置上偵測主動式觸控筆的方法，可快速判斷出主動式觸控筆的操作位置。The main object of the present invention is to provide a method for detecting an active stylus on a touch device, which can quickly determine the operating position of the active stylus.
為達成前述目的，本發明之方法所應用之觸控裝置具有複數個呈行、列交錯排列的獨立感應電極，該方法包含： 執行一主動筆偵測模式，在該主動筆偵測模式下進行： 在一第一時相，將同一行的電極連接在一起，分別獲得每一行該感應電極的行電容總量； 在一第二時相，將同一列的電極連接在一起，分別獲得每一列該感應電極的列電容總量；以及 依據該等行電容總量與列電容總量，判斷一主動式觸控筆在該觸控裝置上的位置。To achieve the foregoing objective, the touch device applied by the method of the present invention has a plurality of independent sensing electrodes arranged in a row and a column, and the method includes: performing an active pen detection mode, and performing the active pen detection mode. : in a first phase, the electrodes of the same row are connected together to obtain the total row capacitance of the sensing electrodes in each row; in a second phase, the electrodes in the same column are connected together to obtain each column respectively. The total amount of column capacitance of the sensing electrode; and determining the position of an active stylus on the touch device according to the total amount of the line capacitance and the total column capacitance.
利用上述方法，本發明只需分別在第一時相、第二時相各執行一次讀取作業，便可獲得每一行感應電極的行電容總量與每一列感應電極的列電容總量，根據該些行電容總量與列電容總量可判斷主動式觸控筆在觸控裝置上的位置。即使是大尺寸觸控裝置，使用本發明的方法也仍然只需經過二次讀取作業即可判斷主動式觸控筆的位置，因此，本發明能有效節省掃描時間，提高效率。With the above method, the present invention only needs to perform a reading operation in each of the first phase and the second phase, respectively, to obtain the total row capacitance of each row of sensing electrodes and the total column capacitance of each column of sensing electrodes, according to The total amount of row capacitance and the total amount of column capacitance can determine the position of the active stylus on the touch device. Even with a large-sized touch device, the position of the active stylus can be judged only by the second reading operation by using the method of the present invention. Therefore, the present invention can effectively save scanning time and improve efficiency.
本發明之另一目的是提供一種可偵測主動式觸控筆的觸控裝置，該觸控裝置可快速判斷一主動式觸控筆之操作位置。Another object of the present invention is to provide a touch device capable of detecting an active stylus, which can quickly determine the operating position of an active stylus.
為達成前述目的，該可偵測主動式觸控筆的觸控裝置包含： 複數個呈行、列交錯排列的感應電極； 複數條導線，分別耦接各個該感應電極，每一個該感應電極耦接一條該導線； 一控制器耦接該複數條導線，該控制器包括： 一第一選擇單元，耦接該複數條導線，在一第一時相將同一行的感應電極連接在一起； 一第二選擇單元，耦接該複數條導線，在一第二時相將同一列的感應電極連接在一起；以及 一感測電路，耦接該第一選擇單元及該第二選擇單元，該感測電路在第一時相接收每一行該感應電極的行電容總量，在第二時相接收每一列該感應電極的列電容總量；以及 一運算單元，耦接該感測電路，該運算單元依據該等行電容總量與列電容總量，判斷一主動式觸控筆在該觸控裝置上的位置。In order to achieve the foregoing objective, the touch device capable of detecting an active stylus comprises: a plurality of sensing electrodes arranged in a row and a column; a plurality of wires respectively coupled to the sensing electrodes, each of the sensing electrodes Connecting a plurality of wires; the controller is coupled to the plurality of wires, the controller comprises: a first selection unit coupled to the plurality of wires, and connecting the sensing electrodes of the same row in a first phase; The second selection unit is coupled to the plurality of wires, and connects the sensing electrodes of the same column together in a second phase; and a sensing circuit coupled to the first selection unit and the second selection unit, the sense The measuring circuit receives the total row capacitance of the sensing electrode in each row in the first phase, and receives the total column capacitance of the sensing electrode in each column in the second phase; and an arithmetic unit coupled to the sensing circuit, the operation The unit determines the position of an active stylus on the touch device according to the total amount of the line capacitance and the total column capacitance.
該第一選擇單元、第二選擇單元分別在第一時相、第二時相將同一行感應電極與同一列感應電極連接之後，該感測電路可接收到每一行之行電容總量與每一列之列電容總量，供運算單元判斷出主動式觸控筆之位置。本發明之觸控裝置只需二次讀取作業即可判斷主動式觸控筆操作位置，可以提高掃描效率。After the first selection unit and the second selection unit respectively connect the same row of sensing electrodes to the same column of sensing electrodes in the first phase and the second phase, the sensing circuit can receive the total amount of capacitance of each row and each row. The total amount of capacitance in a column is used by the computing unit to determine the position of the active stylus. The touch device of the present invention can determine the operation position of the active stylus only by the secondary reading operation, and can improve the scanning efficiency.
請參考圖1，提供根據本發明之一觸控裝置，該觸控裝置具有複數個呈行、列交錯排列的獨立感應電極11、複數條導線12及一控制器100，該控制器100包含一第一選擇單元20、一第二選擇單元30、一第三選擇單元40、一感測電路50、一運算單元60及一選擇信號產生器70。Referring to FIG. 1 , a touch device according to the present invention has a plurality of independent sensing electrodes 11 arranged in a row and a column, a plurality of wires 12 and a controller 100. The controller 100 includes a controller 100. The first selection unit 20, a second selection unit 30, a third selection unit 40, a sensing circuit 50, an arithmetic unit 60, and a selection signal generator 70.
圖中是以6行(X1~X6)×6列(Y1~Y6)的感應電極11為實施例說明，各該感應電極11耦接一條獨立的導線12，這些導線12連接至第一選擇單元20與第二選擇單元30。在本實施例中，該第一選擇單元20中包含複數個第一多工器21，該些第一多工器21的數量對應感應電極11的行數。各該第一多工器21耦接對應一行的複數個該感應電極11，用以選擇其中一個感應電極11或者整行的所有電極11。本實施例的6個第一多工器21分別連接X1~X6這6行的感應電極11。該第二選擇單元30中包含複數個第二多工器31，該些第二多工器31的數量對應該感應電極11的列數，各該第二多工器31耦接對應一列的該感應電極11，用以選擇其中一個感應電極11或者整行的所有電極11。本實施例的6個第二多工器31分別連接Y1~Y6等6列的感應電極11。因此，每個感應電極11都連接一個第一多工器21與一個第二多工器31。In the figure, the sensing electrodes 11 of 6 rows (X1~X6)×6 columns (Y1~Y6) are taken as an embodiment. Each of the sensing electrodes 11 is coupled to a separate wire 12, and the wires 12 are connected to the first selection unit. 20 and second selection unit 30. In the embodiment, the first selection unit 20 includes a plurality of first multiplexers 21, and the number of the first multiplexers 21 corresponds to the number of rows of the sensing electrodes 11. Each of the first multiplexers 21 is coupled to a plurality of the sensing electrodes 11 of a corresponding row for selecting one of the sensing electrodes 11 or all the electrodes 11 of the entire row. The six first multiplexers 21 of the present embodiment respectively connect the sensing electrodes 11 of the six rows X1 to X6. The second selection unit 30 includes a plurality of second multiplexers 31. The number of the second multiplexers 31 corresponds to the number of columns of the sensing electrodes 11, and the second multiplexer 31 is coupled to the corresponding column. The sensing electrode 11 is used to select one of the sensing electrodes 11 or all the electrodes 11 of the entire row. The six second multiplexers 31 of the present embodiment are connected to the six rows of sensing electrodes 11 such as Y1 to Y6. Therefore, each of the sensing electrodes 11 is connected to a first multiplexer 21 and a second multiplexer 31.
該第三選擇單元40有複數個第三多工器41，各該第三多工器41耦接一個對應的該第一多工器21與一個對應的該第二多工器31，每一個多工器41根據一選擇信號(S1~S6)決定連接一第一多工器21或一第二多工器31。在本實施例中，該第三選擇單元40包含有6個第三多工器41。The third selection unit 40 has a plurality of third multiplexers 41, each of the third multiplexers 41 is coupled to a corresponding first multiplexer 21 and a corresponding second multiplexer 31, each of which The multiplexer 41 determines to connect a first multiplexer 21 or a second multiplexer 31 according to a selection signal (S1 to S6). In the embodiment, the third selection unit 40 includes six third multiplexers 41.
該感測電路50透過該第三選擇單元40耦接該第一選擇單元20及該第二選擇單元30，該感測電路50包含有複數個類比/數位轉換器，用以將接收到的感測信號轉換為數位資料。The sensing circuit 50 is coupled to the first selecting unit 20 and the second selecting unit 30 through the third selecting unit 40. The sensing circuit 50 includes a plurality of analog/digital converters for receiving the received sense. The measured signal is converted into digital data.
該運算單元60耦接該感測電路50，用以判斷一接觸物件(例如手指或觸控筆)在該觸控裝置上的位置。The computing unit 60 is coupled to the sensing circuit 50 for determining the position of a contact object (such as a finger or a stylus) on the touch device.
本發明之觸控裝置可執行一主動筆偵測模式。圖2A顯示本發明之觸控裝置在主動筆偵測模式的第一時相時的操作。在第一時相時，第一多工器21被控制去選擇同一行的複數個感應電極11，也就是說，該第一多工器21將同一行的複數個感應電極11連接在一起，此時第一多工器21的輸出為同一行的所有複數個感應電極11的電容感應量的總和，以下稱之為行電容總量。該選擇信號產生器70輸出第一選擇信號S1X~S6X給各個第三多工器41，令該些第三多工器41選擇接收該些第一多工器21的輸出。該感測電路50經由第三選擇單元40同時接收所有的行電容總量SUM_X1~SUM_X6，並且轉換成數位資料傳送給運算單元60。The touch device of the present invention can perform an active pen detection mode. 2A shows the operation of the touch device of the present invention in the first phase of the active pen detection mode. In the first phase, the first multiplexer 21 is controlled to select a plurality of sensing electrodes 11 of the same row, that is, the first multiplexer 21 connects the plurality of sensing electrodes 11 of the same row together. At this time, the output of the first multiplexer 21 is the sum of the capacitance sensing amounts of all of the plurality of sensing electrodes 11 in the same row, which is hereinafter referred to as the total amount of row capacitance. The selection signal generator 70 outputs the first selection signals S1X to S6X to the respective third multiplexers 41, and causes the third multiplexers 41 to select and receive the outputs of the first multiplexers 21. The sensing circuit 50 simultaneously receives all the row capacitance totals SUM_X1 SUM SUM_X6 via the third selection unit 40, and converts the digital data into the arithmetic unit 60.
圖2B顯示本發明之觸控裝置在主動筆偵測模式的第二時相時的操作。在第二時相時，第二多工器31被控制去選擇同一列的複數個感應電極11，也就是說，該第二多工器31將同一列的複數個感應電極11連接在一起，此時第二多工器31的輸出為同一列的所有複數個感應電極11的電容感應量的總和，以下稱之為列電容總量。該選擇信號產生器70輸出第二選擇信號S1Y~S6Y給各個第三多工器41，令該些第三多工器41選擇接收該些第二多工器31的輸出。該感測電路50經由第三選擇單元40同時接收所有的列電容總量SUM_Y1~SUM_Y6，並且轉換成數位資料傳送給運算單元60。2B shows the operation of the touch device of the present invention in the second phase of the active pen detection mode. In the second phase, the second multiplexer 31 is controlled to select a plurality of sensing electrodes 11 of the same column, that is, the second multiplexer 31 connects the plurality of sensing electrodes 11 of the same column together. At this time, the output of the second multiplexer 31 is the sum of the capacitance sensing amounts of all of the plurality of sensing electrodes 11 in the same column, which is hereinafter referred to as the total amount of column capacitance. The selection signal generator 70 outputs the second selection signals S1Y to S6Y to the respective third multiplexers 41, and causes the third multiplexers 41 to select and receive the outputs of the second multiplexers 31. The sensing circuit 50 simultaneously receives all of the column capacitance totals SUM_Y1 SUM SUM_Y6 via the third selection unit 40, and converts the digital data into the arithmetic unit 60.
經過第一時相與第二時相之後，該運算單元60根據行電容總量SUM_X1~SUM_X6與列電容總量SUM_Y1~SUM_Y6，判斷一主動式觸控筆在該觸控裝置上的位置。當主動式觸控筆在該觸控裝置上發出一驅動訊號時，各行電極與各列電極的電容量總和會發生變化。例如圖2A在感應電極11的上方提供各行電極的行電容總量SUM_X1~SUM_X6的示意圖，圖2B在感應電極11左方提供各列電極的列電容總量SUM_Y1~SUM_Y6的示意圖，這兩個示意圖中，一軸是行(或列)的位置，另一軸則表示感應值。根據各行電極的位置與行電容總量SUM_X1~SUM_X6，運算單元60可以計算出主動筆在X方向上的位置。根據各列電極的位置與列電容總量SUM_Y1~SUM_Y6，運算單元60可以計算出主動筆在Y方向上的位置。關於根據X或Y方向電容量以計算接觸位置係為本領域之技術人士所熟知，在此不再贅述。After the first phase and the second phase, the computing unit 60 determines the position of an active stylus on the touch device according to the total row capacitance SUM_X1~SUM_X6 and the total column capacitance SUM_Y1~SUM_Y6. When the active stylus emits a driving signal on the touch device, the sum of the capacitances of the row electrodes and the column electrodes changes. For example, FIG. 2A provides a schematic diagram of the total row capacitance SUM_X1~SUM_X6 of each row electrode above the sensing electrode 11, and FIG. 2B provides a schematic diagram of the column capacitance totals SUM_Y1~SUM_Y6 of each column electrode on the left side of the sensing electrode 11. In the middle, one axis is the position of the row (or column), and the other axis represents the sensing value. Based on the position of each row of electrodes and the total row capacitance SUM_X1 to SUM_X6, the arithmetic unit 60 can calculate the position of the active pen in the X direction. Based on the position of each column electrode and the total column capacitance SUM_Y1 to SUM_Y6, the arithmetic unit 60 can calculate the position of the active pen in the Y direction. The calculation of the contact position based on the capacitance in the X or Y direction is well known to those skilled in the art and will not be described herein.
請參考圖3所示，根據前述的電路動作說明，可歸納出本發明偵測主動式觸控筆的方法，包含以下步驟： 執行一主動筆偵測模式，在該主動筆偵測模式下進行： S31:在一第一時相，將同一行的感應電極11連接在一起，分別獲得每一行該感應電極11的行電容總量； S32: 在一第二時相，將同一列的感應電極11連接在一起，分別獲得每一列該感應電極11的列電容總量；以及 S33:依據該等行電容總量與列電容總量，判斷一主動式觸控筆在該觸控裝置上的位置。Referring to FIG. 3, according to the foregoing circuit operation description, the method for detecting an active stylus according to the present invention can be summarized, and the method includes the following steps: performing an active pen detection mode, and performing the active pen detection mode. S31: In a first phase, the sensing electrodes 11 of the same row are connected together to obtain the total row capacitance of the sensing electrodes 11 in each row; S32: In a second phase, the sensing electrodes of the same column are 11 is connected together to obtain the total column capacitance of each of the sensing electrodes 11; and S33: determining the position of an active stylus on the touch device according to the total amount of the line capacitance and the total column capacitance .
觸控裝置除了可執行前述主動筆偵測模式之外，還可進一步包含一一般偵測模式，用以判斷一物件在觸控裝置上的位置，該物件可以是主動式觸控筆之外的其它物件。其中，該控制器100進一步包含發出驅動信號的一驅動電路80。在一般偵測模式下，只需要使用到該第一選擇單元20或第二選擇單元30其中之一，另一選擇單元無動作，以下將以使用該第一選擇單元20說明一般偵測模式。請參考圖4所示，該一般偵測模式的流程包含： S41：驅動各感應電極11，並接收各感應電極11之電容感應量。在此步驟中，該選擇信號產生器70輸出第一選擇信號S1X~S6X給第三選擇單元40的該些第三多工器41，令該些第三多工器41連接該些第一多工器21，該驅動電路80產生驅動信號並通過該些第三多工器41傳送至各個第一多工器21，各該第一多工器21則於內部進行切換以將驅動信號傳給其中一個感應電極11，並且接收被驅動之感應電極11的電容感應量。如此依序驅動各感應電極11及獲得各感應電極11的電容感應量。在一實施例中，該驅動電路80通過該些第一多工器21的內部切換選擇，逐列發出驅動信號至各列的感應電極11，以本實施例而言，會輸出6次的驅動信號依序分別給第1、2、…6列的感應電極11，經過6次的接收作業後即可得到所有感應電極11之電容量。 S42：根據各感應電極11之電容感應量判斷一物件在該觸控裝置上的位置。該感測電路50將各感應電極11之電容感應量輸出至運算單元60，由該運算單元60根據各感應電極11電容感應量及其位置計算出接觸物件在觸控裝置上的位置。In addition to the foregoing active pen detection mode, the touch device may further include a general detection mode for determining the position of an object on the touch device, and the object may be other than the active stylus. Other items. The controller 100 further includes a drive circuit 80 that issues a drive signal. In the normal detection mode, only one of the first selection unit 20 or the second selection unit 30 needs to be used, and the other selection unit has no action. The general detection mode will be described below by using the first selection unit 20. Referring to FIG. 4, the flow of the general detection mode includes: S41: driving each of the sensing electrodes 11 and receiving a capacitive sensing amount of each of the sensing electrodes 11. In this step, the selection signal generator 70 outputs the first selection signals S1X S S6X to the third multiplexers 41 of the third selection unit 40, and the third multiplexers 41 are connected to the first plurality of multiplexers 41. The driving circuit 80 generates a driving signal and transmits the driving signals to the respective first multiplexers 21 through the third multiplexers 41, and each of the first multiplexers 21 internally switches to transmit the driving signals to One of the sensing electrodes 11 receives the capacitive sensing amount of the driven sensing electrode 11. In this way, the sensing electrodes 11 are sequentially driven and the capacitance sensing amount of each of the sensing electrodes 11 is obtained. In an embodiment, the driving circuit 80 selects the driving signals to the sensing electrodes 11 of the columns by column by the internal switching selection of the first multiplexers 21. In this embodiment, the driving is output 6 times. The signals are sequentially applied to the sensing electrodes 11 of the first, second, and sixth columns, respectively, and the capacitance of all the sensing electrodes 11 is obtained after six receiving operations. S42: Determine the position of an object on the touch device according to the capacitive sensing amount of each sensing electrode 11. The sensing circuit 50 outputs the capacitive sensing amount of each sensing electrode 11 to the computing unit 60. The computing unit 60 calculates the position of the contact object on the touch device according to the capacitive sensing amount of each sensing electrode 11 and its position.
由以上說明可知，本發明提供一種可快速掃描主動式觸控筆位置的方法。本發明只需在第一時相、第二時相分別執行一次讀取作業，便能獲得各行感應電極與各列感應電極的電容感應量的總和，根據該行電容總量與列電容總量判斷一主動式觸控筆在觸控裝置上的位置。針對大尺寸觸控裝置，本發明仍只需藉由二次的讀取作業，即可迅速判斷主動式觸控筆的位置。As can be seen from the above description, the present invention provides a method for quickly scanning the position of an active stylus. The invention only needs to perform a reading operation in the first phase and the second phase respectively, and can obtain the sum of the capacitance sensing amounts of the row sensing electrodes and the column sensing electrodes, according to the total capacitance of the row and the total column capacitance. Determine the position of an active stylus on the touch device. For a large-sized touch device, the present invention can quickly determine the position of the active stylus by only two reading operations.
本發明亦可應用於內嵌式(In cell)的觸控螢幕。感應電極11可以是一塊共電極(common electrode)，一個像素電極，或者是多個像素電極的組合。The invention can also be applied to an in-cell touch screen. The sensing electrode 11 may be a common electrode, a pixel electrode, or a combination of a plurality of pixel electrodes.
雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.
11‧‧‧感應電極
12‧‧‧導線
20‧‧‧第一選擇單元
21‧‧‧第一多工器
30‧‧‧第二選擇單元
31‧‧‧第二多工器
40‧‧‧第三選擇單元
41‧‧‧第三多工器
50‧‧‧感測電路
60‧‧‧運算單元
70‧‧‧選擇信號產生器
80‧‧‧驅動電路
90‧‧‧感應電極
100‧‧‧控制器11‧‧‧Induction electrodes
12‧‧‧ wire
20‧‧‧First choice unit
21‧‧‧First multiplexer
30‧‧‧Second selection unit
31‧‧‧Second multiplexer
40‧‧‧ third choice unit
41‧‧‧ Third multiplexer
50‧‧‧Sensor circuit
60‧‧‧ arithmetic unit
70‧‧‧Select signal generator
80‧‧‧ drive circuit
90‧‧‧Induction electrode
100‧‧‧ Controller
圖1：本發明觸控裝置之連接線路圖。 圖2A：本發明主動筆偵測模式下在第一時相接收行電容總量的電路動作圖。 圖2B：本發明主動筆偵測模式下在第二時相接收列電容總量的電路動作圖。 圖3：本發明之主動筆偵測模式流程圖。 圖4：本發明之一般偵測模式流程圖。 圖5：既有電容式觸控面板之感應電極排列示意圖。FIG. 1 is a connection circuit diagram of a touch device of the present invention. 2A is a circuit diagram showing the total amount of line capacitance received in the first phase in the active pen detection mode of the present invention. FIG. 2B is a circuit diagram showing the total amount of column capacitance received in the second phase in the active pen detection mode of the present invention. FIG. Figure 3 is a flow chart of the active pen detection mode of the present invention. Figure 4 is a flow chart of the general detection mode of the present invention. Figure 5: Schematic diagram of the arrangement of the sensing electrodes of the capacitive touch panel.
11‧‧‧感應電極 11‧‧‧Induction electrodes
12‧‧‧導線 12‧‧‧ wire
20‧‧‧第一選擇單元 20‧‧‧First choice unit
21‧‧‧第一多工器 21‧‧‧First multiplexer
30‧‧‧第二選擇單元 30‧‧‧Second selection unit
31‧‧‧第二多工器 31‧‧‧Second multiplexer
40‧‧‧第三選擇單元 40‧‧‧ third choice unit
41‧‧‧第三多工器 41‧‧‧ Third multiplexer
50‧‧‧感測電路 50‧‧‧Sensor circuit
60‧‧‧運算單元 60‧‧‧ arithmetic unit
70‧‧‧選擇信號產生器 70‧‧‧Select signal generator
80‧‧‧驅動電路 80‧‧‧ drive circuit
100‧‧‧控制器 100‧‧‧ Controller
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
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| TW104123991A TWI552030B (en) | 2015-07-24 | 2015-07-24 | Method for detecting an active pen on a touch device and the touch device |
| CN201510678687.9A CN106371679B (en) | 2015-07-24 | 2015-10-19 | Method for detecting active stylus on touch device and touch device |
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| TW104123991A TWI552030B (en) | 2015-07-24 | 2015-07-24 | Method for detecting an active pen on a touch device and the touch device |
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| TWI766437B (en) * | 2020-11-16 | 2022-06-01 | 義隆電子股份有限公司 | Touch module and control method thereof |
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| TWI472979B (en) * | 2012-10-22 | 2015-02-11 | Superc Touch Coporation | Touch panel device with reconfigurable sensing points and its sensing method |
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| CN104699322B (en) * | 2015-04-01 | 2017-12-29 | 上海天马微电子有限公司 | Array base palte, touch-control display panel, touch control display apparatus and detection method |
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| US6473073B1 (en) * | 1998-06-08 | 2002-10-29 | Wacom Co., Ltd. | Digitizer system with on-screen cue indicative of stylus position |
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| CN106371679B (en) | 2019-09-27 |
| TW201704939A (en) | 2017-02-01 |
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