TWM413173U - Touch sensing device - Google Patents

Abstract

The present invention provides a capacitive touch sensing device. The present invention divides a scanning procedure of an electrode matrix into two stages. First, it scans broadly for determining whether the potential signal of at least one driving line of the electrode matrix is changed or not. After that, the present invention is only directed to the driving line which the potential signal is changed to scan in detail, for determining whether the potential signal of each coupling node on the driving line is changed or not. Therefore, the present invention can achieve the purpose of improving sensing efficiency of the capacitive touch sensing device.

Description

五 Λ新型說明： 【新型所屬之技術領域】 本創作係涉及一種觸控感測裝置，特別係指一種電容 式觸控感測裝置。 【先前技術】 近幾年來，使用電容式技術的觸控感測裝置已普遍地 ，用於各種不同的電子產品中。如此，供使用者能以多點 觸控輸入的方式來進行資訊輸入。 請參考第一圖，為習知技術電容式觸控感測裝置的電 路方塊示意圖。如圖所示，t容式觸控❹樣置9包括： 夕％極陣列90、一第一多工II 91、—驅動電路92、一第二 夕工态93、一積分器94及一類比/數位轉換器％。其中， 電極陣列90是包含複數條軸錢線“及減條感測信 ^線Ls，並且每一驅動信號線Ld與每一感測信號線^是 交越形成一耦合點(Coupling Node)9〇1，而每一耦合點9〇1 又因電氣特性而得以形成一等效電容ce。 第-多工11 91是依序選擇不同通道，以輪流將驅動電 ，92所送出的一脈波信號傳送到每一驅動信號線Ld。第二 多工器93則是進行切換來依序接收每—感測信號線^上 所耦合感應出的電荷電壓。換句話說，透過第一多工器％ 及第H 93的運作，使得脈波錢得以依序在每—輕 合點901所形成的等效電容Ce中進行充放電。而電性連 於第二多工器93後端的積分器94則是透過—積分元件乂 將每-等效電容cE中的電壓儲存至—積分電容Ci。最後再 ^==111941咖類峨位_95進行一 1锝換而輸出一電位信號。 始化=觸Γ測裝置9在實際運作上大致可分為-初 值。之後:在ΐ八觸控二時程二 。點9〇1的等效電容CE比較原先儲存的電位基準 辱901 當有任一輕合‘點901受觸碰之後，該輕合 SI” _CE實際的電位錢將會低於原來的電位 ，準值。错此，透過比較每—等效電容4的電位改變與否， 侍以判斷出實際所觸碰到的耦合點901的座標位置。 然而’以目前的設計技術看來，一次僅僅是針對 耗合點的等效電容來依賴行掃描_。但是，當電容 觸控面板的尺寸越來越大或者對於觸控準確度的:求 越高，致使驅動信號線與感測信號信增加而導致所交越形 成的輕合點越來越多時，整個電容式觸控感測裝置^ 感測時間將會大幅增加，導致感測效能降低， 二 上的需求。 °應用 【新型内容】 有鑑於此，為了解決上述的技術問題，本創作的目的 在於，透過硬體電路的設計及整個掃描程序的修改，將電 極陣列的掃描程序劃分為兩個階段，初步先進行—路令* 描’用來判斷是否電極陣列中的至少一驅動信號線的 值改變，之後再進行一詳細掃描，以只針對路線掃描中= 判斷出泰六 值是否有'、、1改支的驅動k號線來判斷各個耦合點的電容 來加迷判此—來’本創作得以搭配感測判讀原理 只際觸碰點之座標位置的時間。 置，=本創作所提出之—方案，提供〆種觸控感測裝 驅動•狹:―電極陣列、一驅動電路及一感測電路。其中’ 來咸來供應信號給電極陣列，而感測電路則是用 路I觸二，陣列所產生的信號。並且感測電路是先判斷出 控位置Γ立置’進而再針對路線觸控位置來找出至少一觸 置，之另H提供一_控感測裝 亓、.一電極陣列、一第—切換單元、一第二切換單 條路:1極陣列包含複數條驅動信號線及複數 錢，每—驅動信號線及每—感測信號線是交越 綠* σ點。第一切換單元是電性連接該些驅動信號 二切換單元包含複數個開關，每-開關的一端二 連測=;:rr_另一端是電性 ,S35, _ ” 八中在一苐—掃描階段，每次是導 、二個開關來依序導通該些開關，使感測電路判斷 否有至少-轉信號線的電容值發錢變；在—第 =段，每次是導通-個關來依序導通該些開關，使感^ 電路判斷所制到電容值改變_動信號線上是否有= '輕合點的電容值發生改變。 "藉此，本創作所能達到的功效在於，透過硬體線路 簡早修改’即可降低❹m置㈣減啊間 地提升整體感測效能，並且亦可有效降 w 為使能更進-步瞭解本創作之特徵及技術内容，請參 作圖，所_式僅提 用束對本創作加以限制。 【實施方式】 本創作所提供的觸控咸 階段，依序先進行—路扯將掃描料分為兩個 否有至少-列(行)的電容值改變。之後=極陣列中是 容值改變的列(行)來進行—詳 後再/、針對偵測出電 (些)電容值改變的列(行至,h田^以精確地判斷出該 :± 1作如提供侧的電位資訊以供酬 碰點的位置座標。 際觸 例電創作電容式觸控感測裝置的實施 财署！ ίΓ ’本實施例之電容式觸控感 测裝置1口包各：-電極陣列10、一第一切換單元u、一: 二切換单το 12、-感測電路13、—驅動電路14及—核心 處理單元15。其中，電極陣列1G包含複數條驅動信^ LD及複數條❹Ht麟Ls，每-，鶴錢線Ld與每:感 測信號線Ls是交越形成一耦合點1〇1，並且每一耦合點 因電氣特性而形成有一等效電容CE。 1 此外’所屬技術領域具有通常知識者可以了解，電極 陣列10的驅動信號線Ld及感測信號線、可例如是由二層 透明導電層（如：銦錫氧化物(ΓΓΟ))分別架構於一玻埤基二 或一適當材質之透明基板的兩面，並且再經過電極圖案的 相關製程製作而成。然而，有關電極陣列1 〇的電極圖案之 態樣以及電容式觸控面板的架構設計，並非為本創作所阳 制，在此也就不再加以贅述。 第一切換單元U县 計。其中，第—切換單元對多的解多工器之設 14，而第-切換單元u的^人端是電性連接驅動電路 所有驅動信號線LD。藉此，楚3出端則是對應電性連接於 路Μ所產生的-脈波作號時/刀換早兀11在接收驅動電 將脈波信號傳輸給所有驅;^^依據—預設週期來依序 中，設計上複數個開關心 甲，母個開關121的輸入端是 - 的輸==4:= = 二切換單元12除了可以受控制而二次僅ί 朗關121、來形成多對—的多卫器之架構^ 亦可受控制來同時導通多個開關121。 -感測電路I3是電性連接共接點τ，用以在第二切 疋12中的至少-個開關m導通時，感測該導通之開關⑵ 所對應電性連接之感測信號線Ls，並且輸出—信號且 體來看，感測電路η進一步包含—積分器131、一放大ς 132及一類比/數位轉換器133。其中，積分器131是電性 接於共接點Τ，用來取得該導通之開關ι21所對應電性連接 之感測信號線Ls所耦合感應出的一電荷電壓，並積八令電 荷電壓之輸入信號。放大器132是電性連接於積分 的輪出端，用來放大積分器131所輸出的一波形信號。類 比/數位轉換器133則是電性連接於放大器132的端， 用來將該放大後的波形信號從類比信號轉換為數位信號。 附帶一提的是，感測電路B所輸出的信號在設計上可例如 是進一步儲存於電容式觸控感測裝置1的一記憶單元(圖未 示）。 核心處理單凡15是用來控制第一切換單_ ==二 ㈠趣(路線掃描)或-第二掃心 動信號線號給其中之一條驅 通所有的開關121。相對應的，感測電路13每次ΛNew Description: [New Technology Area] This creation relates to a touch sensing device, in particular to a capacitive touch sensing device. [Prior Art] In recent years, touch sensing devices using capacitive technology have been commonly used in various electronic products. In this way, the user can input information by means of multi-touch input. Please refer to the first figure, which is a circuit block diagram of a conventional capacitive touch sensing device. As shown in the figure, the t-capacity touch device 9 includes: a %% pole array 90, a first multiplex II 91, a driving circuit 92, a second eve state 93, an integrator 94, and an analogy. / Digital Converter%. The electrode array 90 includes a plurality of axis lines and a strip sensing signal line Ls, and each driving signal line Ld and each sensing signal line ^ cross each other to form a coupling point (Coupling Node) 9 〇1, and each coupling point 9〇1 is formed with an equivalent capacitance ce due to electrical characteristics. The first multiplex 11 91 sequentially selects different channels to drive the electric power in turn, and a pulse wave sent by 92 The signal is transmitted to each of the driving signal lines Ld. The second multiplexer 93 performs switching to sequentially receive the charge voltage induced on each of the sensing signal lines. In other words, through the first multiplexer The operation of % and H 93 enables the pulse wave to be charged and discharged sequentially in the equivalent capacitance Ce formed by each of the light junctions 901. The integrator 94 electrically connected to the rear end of the second multiplexer 93 is connected. Then, through the integral component 乂, the voltage in each-equivalent capacitance cE is stored to the integral capacitor Ci. Finally, ^==111941, the categorization _95 is performed for one-turn conversion to output a potential signal. The touch detection device 9 can be roughly divided into an initial value in actual operation. After that: in the eight-touch two-timer two. The equivalent capacitance of 9〇1 is compared with the original stored potential reference 901. When there is any light combination 'point 901 is touched, the actual potential of the light SI” _CE will be lower than the original potential, the standard value . In this case, by comparing whether the potential of each of the equivalent capacitors 4 is changed or not, the servo determines the coordinate position of the coupling point 901 actually touched. However, in the current design technique, it is only dependent on the line scan _ for the equivalent capacitance of the point of convergence. However, when the size of the capacitive touch panel is larger or larger, or the accuracy of the touch is higher, the driving signal line and the sensing signal are increased, and the light junctions formed by the crossover are more and more. The entire capacitive touch sensing device ^ will greatly increase the sensing time, resulting in reduced sensing efficiency and the need for second. °Application [New Content] In view of this, in order to solve the above technical problems, the purpose of this creation is to divide the scanning process of the electrode array into two stages through the design of the hardware circuit and the modification of the entire scanning program. Performing - road order * description is used to determine whether the value of at least one of the driving signal lines in the electrode array is changed, and then performing a detailed scan to determine whether the Thai six values have a ', 1 change for the route scan = The support of the k-line to determine the capacitance of each coupling point to add to this - to the 'this creation can be combined with the sensing interpretation principle only touches the coordinates of the point position. Set, = the solution proposed by this creation, provides a variety of touch sensing devices, driving, narrow: "electrode array, a driving circuit and a sensing circuit. Where's the salt to supply the signal to the electrode array, and the sensing circuit is the signal generated by the array. And the sensing circuit first determines the control position Γ 立 ' and then finds at least one touch for the route touch position, and the other H provides a _ control sensing device, an electrode array, a first switch Unit, a second switching single path: The 1-pole array includes a plurality of driving signal lines and a plurality of money, and each of the driving signal lines and each of the sensing signal lines is a crossover green* σ point. The first switching unit is electrically connected to the driving signals. The switching unit comprises a plurality of switches, and one end of each switch is connected to the second test =: rr_ the other end is electrical, S35, _" eight in one scan-scan In the stage, each time the switch and the two switches are used to sequentially turn on the switches, so that the sensing circuit determines whether there is at least a change in the capacitance value of the turn signal line; in the -= segment, each time is on-off The switches are turned on in sequence, so that the sense circuit determines whether the capacitance value is changed. _ The signal line on the moving signal line has a change in the capacitance value of the 'light junction point. " Thus, the effect that the creation can achieve is that By modifying the hardware circuit briefly, you can reduce the overall sensation performance by reducing the ❹m setting (4), and can effectively reduce the w to enable you to further understand the characteristics and technical content of the creation. Please refer to the drawing. The _-type only uses the bundle to limit the creation. [Embodiment] The touch-salting stage provided by the creation is performed first in sequence - the road is divided into two, and at least - columns (rows) The value of the capacitor changes. After the = array in the pole array is the column (row) of the capacitance change. - After detailed, and then, for the column that detects the change of the capacitance value (the line to, h field ^ to accurately determine the: ± 1 as the position coordinate of the supply side potential information to the compensation touch point The implementation of the capacitive touch sensing device is implemented by the company. Γ Γ 'The capacitive touch sensing device of the present embodiment has a 1-port package: - an electrode array 10, a first switching unit u, and a: The second switching unit το 12, the sensing circuit 13, the driving circuit 14 and the core processing unit 15. The electrode array 1G includes a plurality of driving signals LD and a plurality of ❹Ht Lin Ls, each -, the money line Ld and Each of the sensing signal lines Ls is a crossover forming a coupling point 1〇1, and each coupling point is formed with an equivalent capacitance CE due to electrical characteristics. 1 Further, it is known to those skilled in the art that the electrode array 10 The driving signal line Ld and the sensing signal line may be, for example, two layers of transparent conductive layers (eg, indium tin oxide (ITO)) respectively fabricated on both sides of a glass substrate or a transparent substrate of a suitable material, and And then made through the relevant process of the electrode pattern. However, related The electrode pattern of the electrode array 1 and the structural design of the capacitive touch panel are not made by the creative studio, and will not be described here. The first switching unit U county meter. Among them, the first switch The unit-to-multiple demultiplexer is set to 14, and the first end of the first-switching unit u is electrically connected to all the driving signal lines LD of the driving circuit. Thereby, the Chu 3 outlet is electrically connected to the roller. When the generated pulse wave is made, the knife is changed to 兀11, and the pulse wave signal is transmitted to all the drives in the receiving drive power; ^^ is based on the preset cycle, and a plurality of switch embossings are designed in sequence. The input of the switch 121 is -==4:== The second switching unit 12 can be controlled to be double-turned only to form a plurality of pairs of multi-guard architectures ^ can also be controlled simultaneously A plurality of switches 121 are turned on. The sensing circuit I3 is electrically connected to the common contact point τ for sensing the sensing signal line Ls corresponding to the electrically connected switch (2) when the at least one switch m of the second switch 12 is turned on. And the output-signal and body, the sensing circuit η further includes an integrator 131, an amplification ς 132, and an analog/digital converter 133. The integrator 131 is electrically connected to the common contact Τ, and is used to obtain a charge voltage coupled by the sensing signal line Ls corresponding to the electrically connected switch ι21, and accumulates eight charge voltages. input signal. The amplifier 132 is electrically connected to the integral wheel terminal for amplifying a waveform signal output from the integrator 131. The analog/digital converter 133 is electrically connected to the end of the amplifier 132 for converting the amplified waveform signal from an analog signal to a digital signal. Incidentally, the signal outputted by the sensing circuit B can be designed, for example, to be further stored in a memory unit (not shown) of the capacitive touch sensing device 1. The core processing unit 15 is used to control the first switching list _ == two (1) interesting (route scanning) or - second scanning heart signal line number to one of them to drive all the switches 121. Correspondingly, the sensing circuit 13 each time

Jit 121 物合感應出的電荷電壓，並輪出-個電位信 的驅S=目=彳=—切換單元u所輸出之信號 mD，在依序導通所有開關121之後，感測電 即可產生該條驅動信號線LD所對應的至少-個電位 1吕就0 舉，來講’假設驅動信號線一有5條，感測信號_ ’而第二切換單元12 S應感測信號線Ls之數量是 ^ ⑺個開關12卜於是’若第二切換單元12是以每次 開關121來運作的話，則可分兩次來導通所有的 合斜^ 21。換句話說，就每條驅動信號線1^而言，將 "道…兩個電位彳目號。當然，若第二切換單元12是以每 =通H)個開關121來運作的話，則僅需執行一欠即可導 個開關121，於是就每條驅動信號線Ld而言， 夺^、㈢對應有一個電位信號。 由上述第-掃描階段的運作情況看來，當第一Jit 121 combines the induced charge voltage, and rotates the signal of a potential signal. S=目=彳=—The signal mD output by the switching unit u. After all the switches 121 are turned on sequentially, the sensing power can be generated. At least one potential corresponding to the driving signal line LD is 0. In the case of 'assuming that there are five driving signal lines, the sensing signal _ ' and the second switching unit 12 S should sense the signal line Ls The number is ^ (7) switches 12 and then 'If the second switching unit 12 is operated with each switch 121, then all the slanting angles 21 can be turned on twice. In other words, for each drive signal line 1^, the two potentials will be " Of course, if the second switching unit 12 operates with each of the H) switches 121, only one owing can be performed to switch the switch 121, so that for each driving signal line Ld, ^, (3) Corresponding to a potential signal. From the operation of the above-mentioned first-scan phase, when the first

，心、夕—個電位信號，並分別儲存於記 由此可知’本創作第—掃描階段所記錄的二二= 號是屬於驅動信號線！^的線 電位L f驅動信號編的哪幾條受到觸V也所 掃描階段下判斷出路線觸控位置。 在弟— 時，=換==單元15控制運作於第二掃描階段 信號線ld，第'1_單==魏_給—指定的驅動 序導通所有開關12,:= 猶出之信號的指定的驅動 信號、;U1 所 m , 1 點1G1各自所對應的-個電位传嘴 士 ’本創作第二掃描階段所崎 。】二 點電位信號，可用來痛巾 电彳域疋屬於 那幾個_合點1〇1受到的驅純Hd中的 下，進-步針时、= 就是可以在第二掃插階段 斷出實際_^=測到的路線觸控制位置來進—步判 過後 上的觸碰位置。換句* 4_出在—觸控面板 運作時是會先進入控感測裝置1在開始 值，之後才再基於前述内°容=^來預先記錄—電位基準 以及判斷出觸碰點。對斤馬路的比較方式來掃描感測 描程序進入初始化時處理士單元15不管在控制掃 - T描感冽程時，也就都會劃分 為第一掃描階段及第二掃描階段。 如此說來’前述第二掃描階段中所提到的指定的驅動 偽號線LD ’在不同時程中的定義如下： 1、 在初始化時程中，由於所有驅動信號線ld上的所有輕 合點101都需要記錄對應的電位信號，以作為電位基 準值。因此’該指定的驅動信號線ld是指所有的驅動 信號線LD，並且所有的驅動信號線ld將依序或依規 則來接受脈波信號。 2、 在掃描感測時程中，核心處理單元15是將觸控感測時 程的第一掃描階段所記錄的線電位信號比較初始化時 程的第一掃描階段所記錄的線電位信號，以對所有驅 動信號線1^產生判斷結果。因此，該指定的驅動信號 線LD疋指線電位信號有改變的驅動信號線Ld。換句 δ舌說’該指定的驅動信號線LD可以就是受觸碰的驅動 "is 5虎線 Lj)。 最後’進—步針對本實施例的積分器131之架構來說 =積，131包括—積分元件A1、〜第—積分電容C1、 及—嶋元/。其中，㈣分電容 壓的主” ^ A1的碰路從，峰料儲存電荷電 用來作;:存=娜2並接於第-積分電容… 第二積ΓίίΪ7電壓的擴充電容。開關單以是串接於 如此；^來控制第二積分電容C2的運作。 次是導通丄:^描階段’由於第二切換單元12每 ^ . 個開關，積分元件八1畚哈® & ^ 儲存至少二條感測信 要較大的電容來 此開關單元二、，’ s 。感應出的電荷電壓，因 在^掃描階段是導通來讓第二積分電容C2 M413173 進行運作。在第二掃描階段，由於第二切換 是導通一個_ ’積分元件A1所需儲存的丨2每次僅 因== 元S在第二掃描階段是斷 = C2<t止運作。 〜積分電容 當然，在實際設計上，若不考量 較大的空間，並料致放電_較長等 ^各會佔用, heart, eve - a potential signal, and stored separately in the record. It can be seen that the second and second signs recorded in the first stage of the creation are the drive signal lines! ^ The line potential L f drives the signal to which part of the signal is touched. The scanning position is determined by the scanning phase. In the case of the younger brother, the === unit 15 controls the operation of the signal line ld in the second scanning phase, the first '1_single==wei_to-the designated driving sequence turns on all the switches 12, := the designation of the signal The driving signal, U1, m, 1 point, 1G1, each corresponding to a potential of the mouthpieces of the second scanning stage of the creation. 】 Two-point potential signal, can be used for the painful area of the electric towel, which belongs to the lower part of the flooding Hd that is received by the _ joint point 1〇1. When the step-in-hand needle is pressed, the = can be broken in the second sweeping stage. Actual _^=The measured route touches the control position to advance the step position after the judgment. In other words, the function of the touch panel is to enter the control sensor 1 at the start value, and then to pre-record the potential reference based on the aforementioned internal capacitance = ^ and determine the touch point. The comparison method of the kilograms to scan the sensing program into the initialization process unit 15 will be divided into the first scanning phase and the second scanning phase regardless of the control scanning process. Thus, the definition of the specified drive pseudo-number line LD' mentioned in the aforementioned second scanning stage is defined in different time courses as follows: 1. In the initialization time course, due to all the photos on all the driving signal lines ld Point 101 needs to record the corresponding potential signal as the potential reference value. Therefore, the designated drive signal line ld refers to all the drive signal lines LD, and all of the drive signal lines ld will receive the pulse wave signals sequentially or in accordance with the rules. 2. In the scan sensing time period, the core processing unit 15 compares the line potential signals recorded in the first scanning stage of the touch sensing time period with the line potential signals recorded in the first scanning stage of the initialization time period, A judgment result is generated for all of the drive signal lines 1^. Therefore, the designated drive signal line LD 疋 refers to the drive signal line Ld whose line potential signal has changed. In other words, the δ tongue says that the specified drive signal line LD can be the touched drive "is 5 tiger line Lj). Finally, for the architecture of the integrator 131 of the present embodiment, the product, 131 includes - an integrating element A1, a first-integral capacitor C1, and a - unit/. Among them, (4) the main capacitor of the sub-capacitor pressure ^ ^ A1 contact, the peak charge storage charge is used for electricity;: save = Na 2 and connect to the first - integral capacitor... The second product Γ ίίΪ7 voltage expansion capacitor. Is connected in such a way; ^ to control the operation of the second integral capacitor C2. The second is the conduction 丄: ^ tracing phase 'Because the second switching unit 12 each ^. The switch, the integral component eight 1 hip hop ® & ^ store at least The two sensing signals require a larger capacitance to the switching unit 2, 's. The induced charge voltage is turned on during the scanning phase to allow the second integrating capacitor C2 M413173 to operate. In the second scanning phase, The second switch is to turn on a _ 'integral component A1 to store 丨2 each time only because == element S is off at the second scan stage = C2<t stop operation. ~ integral capacitance of course, in actual design, if Do not consider a large space, and the material will cause discharge _ longer, etc. will occupy

131可直接採用一個具較大電容值的第-積分電/積分器 計即可；此外，在選擇第-積分電容C1愈第^^來设 C2的規格上，則是依據實際在第一掃描 ： 導通之關的數錄決定。本實_並—^制母:人 抑取後附帶說明的是，前述的第-切換單元U、第二切 換单兀12、感測電路13、驅動電路14及核心處理^ ===合為單晶片系統。此外，所屬技術領 域具有通吊知識者可以了解，在感測電路13中更可進一步 設計有如濾波H(®未的週邊電路，以增加靈敏度 及精碟度，在此也非為本創作所限制。131 can directly use a first-integral electric/integrator meter with a larger capacitance value; in addition, when the first-integral capacitor C1 is selected to set the C2 specification, it is based on the actual first scan. : The numbering of the pass is determined. The actual _ and - ^ mother: after the person suppresses, the above-mentioned first-switching unit U, the second switching unit 12, the sensing circuit 13, the drive circuit 14 and the core processing ^ == = Single wafer system. In addition, those skilled in the art can understand that the sensing circuit 13 can be further designed with a filtering H (® peripheral circuit to increase the sensitivity and the accuracy of the disk, which is not limited by this creation. .

請依據第二圖的架構來一併參考第三圖，為本創作電 容式觸控制裝置的掃财法實施例絲。如第三圖所 示’本實施例所提供的掃插方法之步驟包括：首先，電容 式觸控感測裝置i運作於—第—掃描階段，以依序傳輸〆 脈波信號給所有驅動信號、^Ld(S3〇1)。當任一驅動信號線 ld接收到脈波信號時’ 域測至少二购合點來依序 感測該目刮接收脈波仏號的驅動信號線1^上的所有耦合點 101(S3〇3)，並且每次在步驟咖3)執行之後，加以儲存該 至少二個耦合點101各自所耦合的電荷電壓之總和 (S305) ’並進而產生該目前接收脈波信號的驅動信號線 12 的—對應信號(S307)。 的所波信號的驅動信號線L°上 的判斷結果為否：重覆執二=)步二：:) 成該:前= 氣鱗ld_-掃描階段之掃描，並且 號生该接收脈波信號的驅動信號線LD的至少—個對應信 緊接著’便再進—步朗脈波信號是否已依序 有驅動k號線LD(S311)。若步驟(S3 i)的判斷否σ 驟Γ1)及其爾後的步驟，直到步鄉叫的 階所有驅動信號線LD皆已完成第-掃描 斷疋否有至少—驅動信號線Ld的電容值產生改變。 在步驟(S311)之後’電容式觸控制裝置1運作於一第 =掃描階段，以再依序傳輸脈波信號給所偵测到電容值改 ，的驅動信號線Ld(S313)。#任—電容值改變的驅動信麥 線LD接收到脈波信號時，便開始以每次感測—她合^ 依序感測觸制到電容值改變的驅動錢線LD上所有 輕合點101(S315)。此外，每感測完一個輕合點1〇1，便加 以儲存該所掃描的耦合點1〇1所耦合的電荷電壓(s3i7)，並 且產生該所掃描的耦合點1〇1的一對應信號(S3i9)。 亚 接著，判斷目前該驅動信號線ld上的所有耦合點l〇i 是否都已感測完畢(S321)。若步驟(S321)的判斷結果為否， 則重覆執行步驟(S315)至步驟(S321)，直到步驟(S32i)的列 斷結果為是，表示目前該驅動信號線Ld已完成第二掃插階 13 M413173 對驅動信號線L—合 行判果為是之後，進—步再進 信(助)。物⑽)暢結二改 其爾後的步驟，直到__ 成第二掃贿㈣㈣此，勵合點= 的對麻請可判_些_ LD上是否有至少一搞合點101的電容值產麵號線 上述實施觸制掃財找纟 :;=的rr。實際在整個電容式觸控感= ‘、去、’㈣斗曰不斷地重複執行本實施例所提供的掃 “完成；搭配感測判― 於電極陣列上的涵蓋範圍實施例示意圖：“作= 所提供的電極陣列1G包含有驅動信號線^ ς 1 共64條’藉以形成·64的電極心= 每Γ咖號線Ld與每—感測信號線^ 之架構’在此就無 假設電極陣列10中的每個耦合點1〇 的感測時間為t’並且本實施例是舉例同時有⑽觸谷碰^ 形成於驅動信號線端互不重疊的位置，而每個觸碰點P在 14 電極陣列10上所會影響的範圍為3*3(共9她合點1〇1)。 此外，在電容絲錢職置丨運行在第—掃㈣段，並 f任條轉#號線ld接魏波信號時，本實施例是假設 第-切換單TL 12是以每次導通全部的64個開關121，如此 :谷式觸㈣職置1是以每次感測Μ姉合點的方式來 掃描目前的驅動信號線LD。 如此一來，本實施例所需的計算時間如下：Please refer to the third figure in accordance with the architecture of the second figure, which is the embodiment of the sweeping method of the creative capacitive touch control device. As shown in the third figure, the steps of the sweeping method provided by the embodiment include: first, the capacitive touch sensing device i operates in the -first scanning phase to sequentially transmit the pulse signal to all driving signals. , ^Ld (S3〇1). When any of the driving signal lines ld receives the pulse wave signal, the domain detects at least two purchase points to sequentially sense all the coupling points 101 on the driving signal line 1^ of the eyepiece receiving pulse wave ( (S3〇3) And, after each execution of the step 3), storing the sum of the charge voltages coupled to each of the at least two coupling points 101 (S305)' and thereby generating the drive signal line 12 of the current received pulse signal. Corresponding signal (S307). The judgment result of the driving signal line L° of the wave signal is no: repeating the second =) step 2::) into the: front = gas scale ld_- scanning of the scanning phase, and the number of the received pulse wave signal At least one corresponding letter of the driving signal line LD is followed by 're-entry' - whether the step pulse signal has sequentially driven the k-line LD (S311). If the judgment of the step (S3 i) is σ Γ ) 1) and its subsequent steps, until all the drive signal lines LD of the step of the step call have completed the first scan scan, there is at least - the capacitance value of the drive signal line Ld is generated. change. After the step (S311), the capacitive touch control device 1 operates in a scan phase to sequentially transmit the pulse wave signal to the drive signal line Ld whose capacitance value is detected (S313). #任—The drive letter of the change in capacitance value receives the pulse wave signal, and then starts to sense all the light points on each of the driving money lines LD that are touched to the change of the capacitance value. 101 (S315). In addition, each time a light junction 1〇1 is sensed, the charge voltage (s3i7) coupled by the scanned coupling point 1〇1 is stored, and a corresponding signal of the scanned coupling point 1〇1 is generated. (S3i9). Then, it is judged whether or not all the coupling points l〇i on the drive signal line ld have been sensed (S321). If the result of the determination in the step (S321) is NO, the step (S315) to the step (S321) are repeatedly performed until the result of the column break in the step (S32i) is YES, indicating that the driving signal line Ld has completed the second sweeping step. 13 M413173 After the drive signal line L-coincidence is judged as yes, advance and then enter the letter (assist). (10)) smooth the second step after the change, until __ into the second bribe (four) (four), the rendezvous point = the number of numbs can be judged _ some _ LD on at least one of the joint point 101 capacitance value The above-mentioned implementation of the face number line touches the sweeping money to find 纟:; = rr. Actually, the entire capacitive touch sense = ', go, ' (4) 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The provided electrode array 1G includes a driving signal line ς 1 total of 64 'by virtue of forming an electrode core of 64 · each Γ 号 line Ld and each - sensing signal line ^ structure ' here no hypothetical electrode array The sensing time of each coupling point 1 in 10 is t' and this embodiment is an example in which (10) contact valleys are formed at positions where the driving signal line ends do not overlap each other, and each touch point P is 14 The range affected by the electrode array 10 is 3*3 (a total of 9 her points are 1〇1). In addition, when the capacitor wire 职 operation is in the first-sweep (four) segment, and the f-turn-to-number line ld is connected to the Wei wave signal, the present embodiment assumes that the first-switching single TL 12 is turned on all at once. 64 switches 121, such that the valley touch (four) job 1 scans the current drive signal line LD every time the touch point is sensed. As a result, the calculation time required for this embodiment is as follows:

在第-掃_段’針對每—條驅動信號線^，由於每 次是以__ 64 _合點來撕—次掃描，因此掃描全 部128條驅動信號線Ld共需花費的時間為： 128 * t = 128t 環 .時間(1)In the first-sweep_segment for each of the driving signal lines ^, since each time is __ 64 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ * t = 128t ring. time (1)

—其中，由於本實施例是假設形成有1〇個觸碰點P，並 且f個觸碰點P的影響範圍為3*3，因此總共會有如條驅 動b旒線LD因觸碰前後的電位信號被判斷為有差異而受影 ，。然而在實際設計上’僅會進一步將每—觸碰點p所涵 到的一主影響之驅動信號線ldi設定為指定的驅動信號 線_^中’主影響之驅動信號線Ldi是代表受影響最劇的驅 動1號線LD(通常每-觸碰點p所涵蓋的三條驅動信號線 2一，中間那條即是主影響之驅動信號線kl)。@此，在 1入^1^又70紐’會有iq條主影響之1峰信號線Lm 進入4二掃描階段。 ， & 了野母一條主影響之驅動信號線 6二二每次是以感測—個耦合點來進行掃描，共要進行 。因輯料” 1G餘轉 號線 所需花費的時間為： 10 * 64 640t * 時間(2) 15 其中，在第二掃描階段之後，即可明確地判斷出每一 條主影響之驅動信號線LD1的哪3购合點⑻因觸碰 的電位信號被判斷為有差異而受影響。 无 此外，為了增加感測上的精確度，針對前述其餘的扣 條雙影響的驅動信號線(每個觸碰點p除了主影響之驅動作 號線LD1之外的另外2條次影響之軸信號線W，可以^ -步進行-局部翻’峨據在每侧觀p的主影響之 驅動信號線LD1的3個受影響之轉合點1〇1，來對應掃^該 條次影響之驅動信號線w。此局部掃描： 20 * 3 * t = 60t θ 時間(3) 於疋，總合上述的時間⑴至⑶的數據之後，可知 施例執行一次掃描程序之週期所需花費的時間： 貝 128t + 640t + 60t = 828t 反觀，若是以-次-個耦合點之掃描的方I::描 刪4之電極陣歹Π0的話，則掃描整個電極陣列=^田 測出^部1G個觸碰點P的座標位置，其所需花費的 128 * 64 * t = 8192t 地降本心： 硬體======= :了=:=:大::::提升整體感·。此 與圖 16 M413173 述之申請專利範圍為準，任何熟悉該項技藝者在本創作之 領域内’ V輕易思及之變化或修飾皆可涵蓋在 界定之專鄕圍。 【圖式簡單說明】 置的電路方塊示 第一圖係習知技術電容式觸控感測裝 意圖；- wherein, since the present embodiment assumes that one touch point P is formed, and the influence range of the f touch points P is 3*3, there is a total potential of the strip drive line LD before and after the touch. The signal is judged to be different and affected. However, in the actual design, the driving signal line ldi of a main influence which is included in each touch point p is further set to the designated driving signal line _^ in the main influence driving signal line Ldi is represented as affected. The most popular driver is Line 1 LD (usually three drive signal lines 2 per touch point p, and the middle one is the main influence drive signal line kl). @这, In 1 input ^1^ and 70 New Zealand, there will be a peak signal line Lm of the iq main influence into the 4 second scanning stage. , & The drive signal line of the main influence of the wild mother 6 2nd and 2nd each time is to scan by a sensing-coupling point, a total of to be carried out. The time taken for the 1G revolving line is: 10 * 64 640t * Time (2) 15 Among them, after the second scanning phase, each main influence driving signal line LD1 can be clearly judged. Which of the 3 points of purchase (8) is affected by the difference in the potential signal of the touch is not affected. In addition, in order to increase the accuracy of the sensing, the driving signal lines for the above-mentioned other buckles are double-influenced (each touch) In addition to the main influence drive, the other two sub-affected axis signal lines W other than the main influence drive line LD1, can be stepped--locally turned over, and the main influence drive signal line LD1 on each side is observed. The three affected turning points are 1〇1, corresponding to the driving signal line w affected by the strip. This partial scan: 20 * 3 * t = 60t θ time (3) in 疋, summing the above After the data of time (1) to (3), it can be known that the time required for the execution of a scan program cycle is: 128t + 640t + 60t = 828t, if the scan is by - the number of coupling points I:: 4 electrode array 歹Π 0, then scan the entire electrode array = ^ field measured ^ part 1G touch point P Coordinate position, the required cost of 128 * 64 * t = 8192t Earthquake: Hardware ======= : ==:=: Large:::: Improve the overall sense. This and Figure 16 M413173 The scope of the patent application shall prevail, and any change or modification that is familiar to the artist in the field of this creation may be covered by the defined scope. [Simple description of the diagram] The first figure is a conventional technique for capacitive touch sensing installation intention;

第一圖係本創作電容式觸控感測装 塊示意圖； 置的實施例電路方 第三圖 例流程圖； 係本創作電容式觸控感測裝 及 置的掃描方法實施 第四圖 施例示意圖 係本創作之觸碰點於電極 陣列上的涵蓋範圍實 【主要元件符號說明】 # [習知技術] 9電容式觸控感測裝置 90電極陣列 901耦合點 91第一多工器 93第二多工器 92驅動電路 95類比/數位轉換哭 4積刀器 A1積分元件 ce等效電容 LD驅動信號線 I積刀電各The first figure is a schematic diagram of the capacitive touch sensing block of the present invention; the flow chart of the third embodiment of the circuit of the embodiment is set; the schematic diagram of the fourth embodiment of the scanning method of the capacitive touch sensing device and the device is implemented. The coverage of the touch point on the electrode array is [the main component symbol description] # [Prior Art] 9 capacitive touch sensing device 90 electrode array 901 coupling point 91 first multiplexer 93 second Multiplexer 92 drive circuit 95 analog/digital conversion crying 4 product knife A1 integral component ce equivalent capacitor LD drive signal line I product knife

Ls感測信號線 17 M413173 [本創作] 1電容式觸控感測裝置 10電極陣列 • 101耦合點 11第一切換單元 12第二切換單元 121開關 13感測電路 • 131積分器 132放大器 133類比/數位轉換器 14驅動電路 15核心處理單元 A1積分元件 G第一積分電容 C2第二積分電容 _ CE等效電容Ls sensing signal line 17 M413173 [This creation] 1 capacitive touch sensing device 10 electrode array • 101 coupling point 11 first switching unit 12 second switching unit 121 switch 13 sensing circuit • 131 integrator 132 amplifier 133 analogy /digital converter 14 drive circuit 15 core processing unit A1 integral component G first integral capacitor C2 second integral capacitor _ CE equivalent capacitor

Ld驅動信號線 Ldi主影響之驅動信號線 Ld2次影響之驅動信號線 Ls感測信號線 P觸碰點 S開關單元 T共接點 S301至S323流程圖步驟說明 18Ld drive signal line Ldi main influence drive signal line Ld2 influence drive signal line Ls sense signal line P touch point S switch unit T common contact S301 to S323 flowchart step description 18

Claims (1)

M413173六、申請專利範圍： 100 曰修正替換 1. 一種觸控感測裝置，包括： 一電極陣列； ' 一驅動電路，係用來供應信號給該電極陣列；及 一感測電路，係用來感測該電極陣列所產生的信號； 其中，該感測電路係先判斷出一路線觸控位置，再針對 該路線觸控位置來找出至少一觸控位置。 2. 如申請專利範圍第1項所述之觸控感測裝置，其中該電 • 極陣列進一步包含複數條驅動信號線及複數條感測信 號線，並且每一條驅動信號線及每一條感測信號線係交 越形成一耦合點。 3. 如申請專利範圍第2項所述之觸控感測裝置，其中該感 測電路進一步包含： 一積分器，係用來積分至少一該感測信號線所耦合感應 出的一電荷電壓； 一放大器，係用來放大該積分器輸出的一波形信號；及 φ 一類比/數位轉換器，係將該放大後的波形信號進行類比 轉數位之轉換。 4. 如申請專利範圍第1項所述之觸控感測裝置，其中該觸 控感測裝置係一電容式觸控感測裝置。 5. 如申請專利範圍第4項所述之觸控感測裝置，其中該感 測電路是先判斷該路線觸控位置，進而再利用該路線觸 控位置之資訊來找出該觸控位置。 6. —種觸控感測裝置，包括： 一電極陣列，包含複數條驅動信號線及複數條感測信號 19 越形成合t驅動信號線及每一條感測信號線係交 〜第A二切換Γ _係電性連接該些驅動信號線； 電性連接對廡=3硬數個開闕，每一開闕的一端係 係電性連接:二η，並且每-開關的另-端 其中，在★'、电性連接该共接點； 依序導通^此婦插階段’每次是導通至少二個開關來 -驅動广=開關’使該感測電路係判斷是否有至少 段，每次的電容值發生改變；在一第二掃描階 感測電路n—個開關來依序導通該些開關，使該 號線上3 、斷該些所偵測到電容值改變的驅動信 7. 如申料個耦合點的電容值發生改變。 測電路在兮笛圍所述之觸控感測裝置，其中該感 線的至小二彳一掃描階段完成後，係產生每一驅動信號 後，健生二對應信號，並且在該第二掃描階段完成 合點㈣應=到電容值改變的驅動錢線上每—麵 8. 如申請專利範圊 測電路包含弟6項所述之觸控感測裝置，其中該感 —積分号，佐带 之門關％二電性連接該共接點’用來接收該對應導通 荷i壓。電性連接之感測信號線所耦合感應出的電 積 9. =申請專利範圍第8項所述之觸控感 分器進一步包含： "肀5亥 一積分元件； 20 M413173 一第一積分電容，係設置於該積分元件的迴授路徑，作 為儲存該電荷電壓的主電容； 一第二積分電容，係並接於該第一積分單元，作為儲存 該電荷電壓的擴充電容；及 一開關單元，係串接於該第二積分電容，用來控制該第 二積分電容的運作。 10. 如申請專利範圍第9項所述之觸控感測裝置，其中在該 第一掃描階段，該開關單元係導通來讓該第二積分電容 運作，並且在該第二掃描階段，該開關單元係斷開來讓 該第二積分電容停止運作。 11. 如申請專利範圍第8項所述之觸控感測裝置，其中該感 測電路進一步包含： 一放大器，係電性連接該積分器的輸出端，用來放大該 積分器所輸出的一波形信號；及 一類比/數位轉換器，係電性連接該放大器的輸出端，用 來將該放大後的波形信號進行類比轉數位之轉換。 12. 如申請專利範圍第7項所述之觸控感測裝置，進一步包 含： 一驅動電路，係電性連接該第一切換單元；及 一核心處理單元，係控制該驅動電路、該第一切換單 元、該第二切換單元及該感測電路之運作，以運作於 該第一掃描階段及該第二掃描階段，並且該核心處理 單元係依據信號來執行一比較運算。 21 M413173 七、圖式： 1〇〇年7 32 卷後M413173 VI. Patent Application Range: 100 曰Revision and Replacement 1. A touch sensing device comprising: an electrode array; 'a driving circuit for supplying signals to the electrode array; and a sensing circuit for Sensing the signal generated by the electrode array; wherein the sensing circuit first determines a route touch position, and then finds at least one touch position for the route touch position. 2. The touch sensing device of claim 1, wherein the electrode array further comprises a plurality of driving signal lines and a plurality of sensing signal lines, and each driving signal line and each sensing line The signal line crosses to form a coupling point. 3. The touch sensing device of claim 2, wherein the sensing circuit further comprises: an integrator for integrating a charge voltage induced by at least one of the sensing signal lines; An amplifier is used to amplify a waveform signal output by the integrator; and a φ analog/digital converter converts the amplified waveform signal into analog to digital conversion. 4. The touch sensing device of claim 1, wherein the touch sensing device is a capacitive touch sensing device. 5. The touch sensing device of claim 4, wherein the sensing circuit first determines the touch position of the route, and then uses the information of the touch position of the route to find the touch position. 6. A touch sensing device, comprising: an electrode array comprising a plurality of driving signal lines and a plurality of sensing signals 19 forming a combined t driving signal line and each sensing signal line crossing ~ A second switching Γ _ is electrically connected to the driving signal lines; the electrical connection is 庑=3 hard number of openings, and one end of each opening is electrically connected: two η, and the other end of each switch In ★', electrically connect the common contact; sequentially turn on ^ this plug-in stage 'each time is at least two switches - drive wide = switch' so that the sensing circuit determines whether there are at least segments, each time The capacitance value changes; in a second scanning step sensing circuit n-switches to sequentially turn on the switches, so that the number line 3, the driving signal that detects the change of the capacitance value is changed. The capacitance value of the coupling point changes. The measuring circuit is in the touch sensing device described in the whistle, wherein after the scanning phase of the sensing line is completed, after each driving signal is generated, the second corresponding signal is generated, and in the second scanning phase Completion of the joint (four) should = to the capacitance value of the drive on the money line every - face 8. If the application of the patent paradox circuit contains the touch sensing device described in the six brothers, which sense - the integral number, the door of the band The %2 electrical connection is used to receive the corresponding conduction voltage. The electromagnetism induced by the electrically connected sensing signal line is 9. The touch sensor of claim 8 further includes: "肀5海一一一组件; 20 M413173 a first integral a capacitor is disposed in a feedback path of the integrating component as a main capacitor for storing the charge voltage; a second integrating capacitor is connected to the first integrating unit as an expansion capacitor for storing the charge voltage; and a switch The unit is connected in series to the second integrating capacitor for controlling the operation of the second integrating capacitor. 10. The touch sensing device of claim 9, wherein in the first scanning phase, the switching unit is turned on to operate the second integrating capacitor, and in the second scanning phase, the switch The unit is disconnected to stop the second integrating capacitor from operating. 11. The touch sensing device of claim 8, wherein the sensing circuit further comprises: an amplifier electrically connected to the output of the integrator for amplifying the output of the integrator A waveform signal; and a analog/digital converter electrically connected to the output of the amplifier for analog-to-digital conversion of the amplified waveform signal. 12. The touch sensing device of claim 7, further comprising: a driving circuit electrically connected to the first switching unit; and a core processing unit controlling the driving circuit, the first The switching unit, the second switching unit and the sensing circuit operate to operate in the first scanning phase and the second scanning phase, and the core processing unit performs a comparison operation according to the signal. 21 M413173 VII. Schema: 1 year after 7 32 volumes 22 M413173 ι〇〇Μ ? 101 Ls22 M413173 ι〇〇Μ ? 101 Ls · Π9] 第一圖 23 M413173· Π9] First picture 23 M413173 24 M41317324 M413173 第四圖Fourth picture 2525