201032112 六、發明說明： 【發明所屬之技術領域】 本發明是有關於觸控偵測領域，且特別是有關於—種執行 於電容式觸控面板之觸控偵測方法以及電容式觸控系統。 【先前技術】201032112 VI. Description of the Invention: [Technical Field] The present invention relates to the field of touch detection, and in particular to a touch detection method and a capacitive touch system implemented on a capacitive touch panel . [Prior Art]
❿ 現今’觸控面板已被廣泛地整合於各類電子產品上作為輪 入裝置，使用者僅需以觸碰物體(例如手指或觸控筆之類的物 體)在面板上滑動或接觸，使遊標產生相對移動或絕對座標移 動，即可完成包括文字書寫、捲動視窗及虛擬按鍵等各^輪 入。其中，電容式觸控面板係一種可供手指在平滑的面板上移 動以控制遊標移動的觸控面板，當手指觸碰面板時，所觸碰位 置（亦即觸控點）的第一感測方向及第二感測方向上的感應能 1大小將產生改變，藉由檢測感應能量的大小即可判斷物^是 否觸碰電容式觸控板及計算出觸碰位置座標。 在某些電各式觸碰面板的設計上，會因為某些技術上的考 量(如繞線問題或是純的個能力），較大的感測 墊’例如5毫米χ5毫米或7毫米χ7毫米尺寸大小的感測塾； 由此可知’實際上電容式觸控面板的解析度和顯示面板的解析 度相比1¾者的差距是相當大，很容易產生從低解析度對應到 後所造成的失真。因此’如何將實際上較低解析度的 電板對應到高解析度的顯示面板而能減少對應上 的失真，是目前亟待解決的問題。 【發明内容】 目的之—就是在提供—_控_方法以降低 式觸控面板對應到較高解析度之顯示面板 後會造成的失真。 本發明的再-目的是提供一種電容式觸控系統。 201032112 本發明-實施例提&的—麵控制方法，其執行於電容 式觸控面板；觸控偵測方法包括步驟：於第-感測方向上找出 冑㈣與第二感測墊H測墊為物體觸碰電容式觸控 面板時在第-感測方向上感測能量最高者，第二感測墊為與第 -感測塾相鄰接的感測墊中感須能量最高者；以及依據第一感 j墊與第―感，則墊之感測能量差值與位置距離之間的比值，設 定於第一感測方向上的輸出觸碰位置在第一感測墊與第二咸 測墊間的特定處。 、 〜 〇 在本發明一實施例中’前述之依據第一感測墊與第二感測 墊之感測能量差值與位置距離之間的比值，設定於第一感測方 向上的輸出觸碰位置在第一感測墊與第二感測墊間的特定處 之步驟包括：在第一感測墊與第二感測墊於第一感測方向上分 別對應的第一座標與第二座標間内插至少一個虛擬座標；以及 依據第一感測墊與第二感測墊之感測能量差值與位置距離之 間的比值，没定於第一感測方向上的前述輸出觸碰位置的座標 為第一座標與前述至少一個虛擬座標中的特定者。 在本發明的一實施例中’前述之第一感測墊與第二感測墊 之位置距離係第一感測墊與第二感測墊之幾何中心的連線長 度。 在本發明一實施例中，前述之觸控偵測方法更包括步驟： 於第一感測方向上找出第二感測墊與第四感測墊，第三感測塾 為物體觸碰電容式觸控面板時在第二感測方向上感測能量最 鬲者，第四感測墊為與第二感測墊相鄰接的感測墊中感測能量 最鬲者，以及依據第>感測塾與第四感測墊之感測能量差值與 位置距離之間的比值，s又疋於第二感測方向上的輸出觸碰位置 在第三感測墊與第四感測墊間的特定處。 4 2〇1〇32112 〜本發明再一實施例提出的一種電容式觸控系統，其包括： 電容式觸控面板、顯示面板以及主機；電容式觸控面板包括： 電容式感測墊陣列、第一處理裝置以及第二處理裝置。電容式 感測墊陣列包括多個沿第—感測方向制的感測墊以及多個 沿第二感測方向排列的感測墊，第一處理裝置與這些沿第一感 測方向排列的感測墊相電性耦接，第二處理裴置與這^沿第二 感測方向排列的感測墊相電性耦接且透過第一通訊介面與第 -處理裝置進行軌’域與顯示面板相電,_接，且透過第 二通訊介面與前述電容式觸控面板的第一處理裝置和第二處 © ί里褒置之-者進行通訊，以接收第一處理裝置產生的於第二感 測方向上之輸出觸碰位置以及第二處理裝置產生的於第二感 測方向上之輸出觸碰位置，並依據這些輸出觸碰位置控制顯示 面板顯示的遊標。其中，第一處理裝置適於執行下列步驟 第一感測方向上找出第一該感測墊與第二該感測墊，第一感測 墊為物體觸碰電容式觸控面板之電容式感測墊陣列時在第一 感測方向上感測能量最高者，第二感測墊為與第一感測塾相鄰 接的感測墊中感測能里最高者；以及依據第一感測墊與第二感 〇 測墊之感測能量差值與位置距離之間的比值，設定於第一感測 方向上的前述輸出觸碰位置在第一感測墊與第二感測墊間的 特定處。 在本發明的一實施例中，前述之第一處理裝置執行之依據 第一感測墊與第二感測墊之感測能量差值與位置距離之間的 比值，設定於第一感測方向上的輸出觸碰位置 第二感測墊間的特定處之步雜包括：在第一感測塾與S3 墊於第-感測方向上分别對應的第一座標與第二座標間内插 至少一個虛擬座標；以及依據第一感測墊與第二感測墊之感測 201032112 志置差值與位置距離之_比值，設定於第—感财向上的前 述輸出觸碰位置的座標為第-座標與前述之至少—個虛擬座 標中的特定者。其中’第-感測触第二感測墊之位置距離可 係第一感測墊與第二感測墊之幾何中心的連線長度。❿ Today's touch panels have been widely integrated into various electronic products as wheel-in devices. Users only need to touch or touch objects on the panel (such as fingers or stylus) to make them slide or touch. The cursor produces relative movement or absolute coordinate movement, which can complete the rounding of the text, scrolling window and virtual buttons. The capacitive touch panel is a touch panel that can be moved by a finger on a smooth panel to control the movement of the cursor. When the finger touches the panel, the first sensing of the touched position (ie, the touch point) The magnitude of the sensing energy 1 in the direction and the second sensing direction is changed. By detecting the magnitude of the sensing energy, it is possible to determine whether the object touches the capacitive touch panel and calculates the touch position coordinates. In some designs of various touch panels, due to some technical considerations (such as winding problems or pure ability), larger sensing pads 'eg 5 mm χ 5 mm or 7 mm χ 7 Sensing 毫米 of the millimeter size; it can be seen that 'the actual resolution of the capacitive touch panel and the resolution of the display panel are quite large compared to the 13⁄4, which is easy to produce from the low resolution Distortion. Therefore, it is an urgent problem to solve the problem of how to reduce the corresponding distortion by correspondingly lowering the actual resolution of the lower resolution board to the high-resolution display panel. SUMMARY OF THE INVENTION The purpose is to provide a -_control_method to reduce the distortion caused by the touch panel corresponding to a higher resolution display panel. A further object of the present invention is to provide a capacitive touch system. The method of the present invention is implemented in a capacitive touch panel. The touch detection method includes the steps of: finding a fourth (four) and a second sensing pad in the first sensing direction. The measuring pad is the one that senses the highest energy in the first sensing direction when the object touches the capacitive touch panel, and the second sensing pad is the highest sensitive energy in the sensing pad adjacent to the first sensing port. And according to the first sense j pad and the first sense, the ratio between the sensing energy difference and the position distance of the pad, the output touch position set in the first sensing direction is in the first sensing pad and the first The specific location of the two salt test mats. In an embodiment of the present invention, the output ratio of the sensing energy difference and the position distance of the first sensing pad and the second sensing pad is set in the first sensing direction. The step of touching the specific position between the first sensing pad and the second sensing pad includes: a first coordinate and a second corresponding to the first sensing pad and the second sensing pad respectively in the first sensing direction Intersecting at least one virtual coordinate between the coordinates; and according to a ratio between a sensing energy difference of the first sensing pad and the second sensing pad and a position distance, the output touch not determined in the first sensing direction The coordinates of the location are the first coordinate and a particular one of the aforementioned at least one virtual coordinate. In an embodiment of the invention, the positional distance between the first sensing pad and the second sensing pad is the length of the line connecting the geometric centers of the first sensing pad and the second sensing pad. In an embodiment of the invention, the touch detection method further includes the steps of: finding a second sensing pad and a fourth sensing pad in the first sensing direction, and the third sensing device is an object touching capacitance. The touch panel is configured to sense the most energy in the second sensing direction, and the fourth sensing pad is the most sensitive sensor in the sensing pad adjacent to the second sensing pad, and according to the section The ratio between the sensed energy difference of the sensed and fourth sense pads and the positional distance, and the output touch position of the second sensed direction in the third sensed pad and the fourth sensed Specific place between the mats. 4 〇 1 〇 32112 〜 A capacitive touch system according to another embodiment of the present invention includes: a capacitive touch panel, a display panel, and a host; the capacitive touch panel includes: a capacitive sensing pad array, a first processing device and a second processing device. The capacitive sensing pad array includes a plurality of sensing pads along the first sensing direction and a plurality of sensing pads arranged along the second sensing direction, and the first processing device and the senses arranged along the first sensing direction The measuring pads are electrically coupled, and the second processing device is electrically coupled to the sensing pads arranged along the second sensing direction and is configured to perform a track and a display panel through the first communication interface and the first processing device. And the second communication interface communicates with the first processing device of the capacitive touch panel and the second portion of the capacitive touch panel to receive the second processing device to generate the second The output touch position in the sensing direction and the output touch position generated by the second processing device in the second sensing direction, and the cursor displayed by the display panel is controlled according to the output touch positions. The first processing device is adapted to perform the following steps: finding the first sensing pad and the second sensing pad in the first sensing direction, wherein the first sensing pad is a capacitive type of the object touching the capacitive touch panel Sensing the highest energy in the first sensing direction when sensing the pad array, the second sensing pad being the highest one of the sensing energies in the sensing pad adjacent to the first sensing port; and according to the first sense The ratio between the sensing energy difference and the position distance of the measuring pad and the second sensing pad, the output touch position set in the first sensing direction is between the first sensing pad and the second sensing pad Specific. In an embodiment of the present invention, the first processing device performs the ratio between the sensing energy difference and the position distance of the first sensing pad and the second sensing pad, and is set in the first sensing direction. The step of outputting the touch position on the second sensing pad includes: interpolating at least the first coordinate and the second coordinate corresponding to the first sensing 塾 and the S3 pad in the first sensing direction a virtual coordinate; and according to the ratio of the first sensing pad and the second sensing pad sensing the 201032112 ambiguity difference and the position distance, the coordinate of the output touch position set in the first-touching direction is - The coordinates are at least one of the aforementioned virtual coordinates. Wherein the position distance of the first sensing pad is the length of the line connecting the geometric centers of the first sensing pad and the second sensing pad.
在本發明的-實施例中，前述之電容式觸控^統之第二處 理裝置適於執行下列倾m财向±找出第三感測塾 與第四感測墊’第三感測塾為物體觸碰電容式觸控面板之電容 式感測墊陣列時在第二感測方向上感測能量最高者，第四感測 墊為與第三感測墊相鄰接的感測墊中感測能量最高者；以及依 據第三感測墊與第四感測墊之感測能量差值與位置距離之間 的比值’設定於第二感測方向上的前述輸出觸碰位置在第三 測墊與第四感測墊間的特定處。 一、 本發明實施例利用電容式觸控面板之物體（例如手指）接 觸到感測墊面積和感測能量成正比的特性，在相鄰的感測塾之 間内插出更多的座標，並依據其感測能量差值與位置距離之間 的比值，來推算出更接近物體實際觸碰的位置。因此，可以^ 效的提升電容式觸碰面板的解析度，並降低對應到較高解析度 之顯示面板後會造成的失真。又 為讓本發明之上述和其他目的、特徵和優點能更明顯易 懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在以下 配合參考圖式之一較佳實施例的詳細說明中，將可清楚的呈 現。以下實施例中所提到的方向用語’例如：上、下、左戋右 等，僅是參考附加圖式的方向。因此，使用的方向用語是= 說明並非用來限制本發明。 Λ 6 201032112 參見圖i，其為本發明實施例提出的一種電容式觸控系統 之-結構框_。電容式觸控系統1G包括電容式觸控面板12、 主機14以及顯示面板丨6。 電容式觸控面板12包括電容式感測墊陣列12〇、χ感測 方向處理裝置122以及Y感測方向處理裂置124。In the embodiment of the present invention, the second processing device of the capacitive touch control described above is adapted to perform the following tilting. The third sensing 塾 and the fourth sensing pad 'third sensing 塾 are found. When the object touches the capacitive sensing pad array of the capacitive touch panel, the highest sensing energy is detected in the second sensing direction, and the fourth sensing pad is in the sensing pad adjacent to the third sensing pad. The highest energy is sensed; and the ratio of the sensed energy difference to the positional distance between the third and fourth sensing pads is 'the aforementioned output touch position set in the second sensing direction is in the third The specific location between the pad and the fourth sensing pad. In the embodiment of the present invention, an object (for example, a finger) of the capacitive touch panel is in contact with the characteristic of the sensing pad area and the sensing energy, and more coordinates are interposed between the adjacent sensing electrodes. And based on the ratio between the sensed energy difference and the positional distance, the position closer to the actual touch of the object is derived. Therefore, the resolution of the capacitive touch panel can be improved and the distortion caused by the display panel corresponding to a higher resolution can be reduced. The above and other objects, features, and advantages of the present invention will become more apparent and understood. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. The directional terms mentioned in the following embodiments are, for example, up, down, left, right, etc., only referring to the direction of the additional drawing. Therefore, the directional term used is = and the description is not intended to limit the invention. Λ 6 201032112 Referring to FIG. 1 , it is a structural frame of a capacitive touch system according to an embodiment of the present invention. The capacitive touch system 1G includes a capacitive touch panel 12, a host 14 and a display panel 丨6. The capacitive touch panel 12 includes a capacitive sensing pad array 12A, a χ sensing direction processing device 122, and a Y sensing direction processing splicing 124.
墊陣列⑽包括多條相互平⑽置且沿χ感測方向延伸的感 測線麗、以及多條相互平行設置且沿γ感測方向延伸的感 測線1203。其中，每一感測線12〇1包括多個沿χ感測方向排 列之菱形的感測塾12〇1Ρ (如圖2所示），每一感測線蘭 包括多個沿Υ感測方向排列之菱形的感測墊12〇3ρ (如圖4) 所示。χ感測方向處理裝置122與這些感測線12〇1之沿χ感 測方向排列的感· 1201Ρ才目電性輕接。γ感測方向處理裝置 124與這些沿γ感測方向排列的感測墊12〇3ρ相電性耦接^透 過通訊介面123與X感測方向處理裝置122進行通訊。 八主機14與顯示面板16相電性耦接；主機14透過主通訊 ”面13與電谷式觸控面板12的γ感測方向處理裝置進 行通訊’以接收X感測方向處理裝置122產生的於χ感測方 向上之輪出觸碰位置以及γ感測方向處理裝置124產生的於γ 感測方向上之輸出觸碰位置，並依據這些輸出觸碰位置#购 不面板16顯示的遊標160。當然，主機14亦可透過主通訊^ 面13與電容式觸控面板12的X感測方向處理裝置122而非^ 感測方向處理裝置124進行通訊，其可達成相同之功效。 下面將結合圖2至圖4具體描述一種執行於觸控偏測系統 10之電容式觸控面板12之觸控偵測方法。 、、’… 參見圖2,當物體例如單個手指20觸碰電容式觸控面板 12之電容式感測墊陣列120時，於χ感測方向上找出特定的 7 201032112 第（x+l)個感測墊1201P與第x個感測墊1201P，並獲取第 (χ+1)個感測墊1201Ρ與第X個感測墊1201Ρ之感漁量差 值AEx及位置距離adx。其中，第（χ+1)個感測墊 2手指20觸碰電容式感測墊陣列120時在X感測方向上感測 能量最高者，第X個感測墊1201P為與第（x+1)個感測墊= 鄰接的感測墊1201P中感測能量最高者；第（x+1)個感測塾 12〇ip與第χ個感測墊12〇lp之位置距離Δ]〇χ為例如是兩者 之幾何中心Cx的連線長度。 ❹ 參見圖3，其繪示依據感測能量差值ΔΕχ與位置距離△The pad array (10) includes a plurality of sensing lines which are mutually flat (10) and extend in the χ sensing direction, and a plurality of sensing lines 1203 which are disposed in parallel with each other and extend in the γ sensing direction. Each of the sensing lines 12〇1 includes a plurality of diamond-shaped sensing electrodes 12〇1Ρ (shown in FIG. 2) arranged along the sensing direction, and each sensing line includes a plurality of sensing lines arranged along the sensing direction. The diamond shaped sensing pad 12〇3ρ (shown in Figure 4). The sensing direction processing device 122 and the sensing lines 12〇1 are arranged in the sensing direction of the sensor 1201. The gamma sensing direction processing device 124 is electrically coupled to the sensing pads 12〇3ρ arranged along the γ sensing direction, and communicates with the X sensing direction processing device 122 through the communication interface 123. The host 14 is electrically coupled to the display panel 16; the host 14 communicates with the gamma sensing direction processing device of the electric valley touch panel 12 through the main communication "face 13" to receive the X sensing direction processing device 122. The wheel touch position in the sensing direction and the output touch position generated by the gamma sensing direction processing device 124 in the γ sensing direction, and according to the output touch position #, the cursor 160 displayed on the panel 16 is not purchased. Of course, the host 14 can communicate with the X-sensing direction processing device 122 of the capacitive touch panel 12 instead of the sensing direction processing device 124 through the main communication surface 13, which can achieve the same effect. FIG. 2 to FIG. 4 specifically describe a touch detection method of the capacitive touch panel 12 performed by the touch bias measurement system 10. [,] [...] Referring to FIG. 2, when an object such as a single finger 20 touches a capacitive touch When the capacitive sensing pad array 120 of the panel 12 is located, the specific 7 201032112 (x+1) sensing pads 1201P and the xth sensing pads 1201P are found in the sensing direction of the panel 12, and the first (χ+) is obtained. 1) the sensed amount of the sensing pad 1201Ρ and the Xth sensing pad 1201Ρ The value AEx and the position distance adx, wherein the (X+1) sensing pad 2 finger 20 touches the capacitive sensing pad array 120, the highest energy is sensed in the X sensing direction, the Xth sensing pad 1201P is the highest sensing energy in the sensing pad 1201P adjacent to the (x+1)th sensing pad=; (x+1) sensing 塾12〇ip and the third sensing pad 12〇lp The position distance Δ] 〇χ is, for example, the length of the line connecting the geometric centers Cx of the two. ❹ Referring to FIG. 3 , the difference ΔΕχ and the position distance Δ according to the sensed energy are plotted.
Dx之間的比值（ΔΕχ/ΔΟχ)設定於Χ感測方向上的輸出觸 碰位置在第（x+1)個感測墊UOip與第x個感測墊12〇lp間 的特定處之步驟。具體地可包括下列步驟： 曰 、（1)利用内插法在第（Χ+1)個感測墊1201Ρ與第χ個 感測墊1201P於X感測方向上分別對應的座標A* (χ+ι)與 座標A*x之間内插（2N+1)個虛擬座標。其中，人為又感測 方向上之座標放大係數，座標A* (x+1)與座標Α*χ之間的 中點座標為（Α*χ+Α/2)，每相鄰的兩個座標之間的距 〇 Α/2(Ν+1)。 " (2)依據第（χ+1)個感測墊12〇lp與第χ個感測墊ΐ2〇ιρ 之感測能量差值ΔΕχ與位置距離adx之間的比值（ΔΕχ/Α Dx)，設跋X感測方向上的輸出觸碰位置的座標為座標A* (χ+1)與（2N+1)個虛擬座標中的特定者（例如圖3橢圓圈 住的虛擬座標）。其中，比值（他/施）越大，於χ感測 方向上的輸出觸碰位置的座標越靠近座標Α* (χ+1)，^Εχ 的值相應地也就越大。 同樣地，參見圖4 ’在單個手指2〇觸碰電容式觸控面板 201032112 12之電容式感測墊陣列120時，於Y感測方向上找出特定的 第（y+Ι )個感測墊1203Ρ與第y個感測墊1203Ρ，並獲取第 (y+Ι)個感測墊1203P與第y個感測墊1203P之感测能量差 值AEy及位置距離ADy。其中，第（y+l )個感測墊i2〇3P 為手指20觸碰電容式感測墊陣列120時在γ感測方向上感測 能量最高者，第y個感測墊1203P為與第（y+l)個感測墊相 鄰接的感測墊1203P中感測能量最高者；第（y+1)個感測整 1203P與第y個感測墊1203P之位置距離ADy為例如是兩者 之幾何中心Cy的連線之長度。The ratio between Dx (ΔΕχ/ΔΟχ) is set in the Χ sensing direction of the output touch position at a specific point between the (x+1)th sensing pad UOip and the xth sensing pad 12〇lp . Specifically, the method may include the following steps: 曰, (1) using coordinates (*) corresponding coordinates A* of the (Χ+1)th sensing pad 1201Ρ and the third sensing pad 1201P in the X sensing direction by interpolation. +ι) Interpolate (2N+1) virtual coordinates with coordinates A*x. Among them, the coordinate coefficient of the coordinate is sensed by the artificial direction, and the coordinates of the midpoint between the coordinates A* (x+1) and the coordinate Α*χ are (Α*χ+Α/2), and each adjacent two coordinates The distance between 〇Α/2 (Ν+1). " (2) The ratio (ΔΕχ/Α Dx) between the sensing energy difference ΔΕχ and the position distance adx according to the (χ+1)th sensing pad 12〇lp and the third sensing pad 2〇ιρ The coordinates of the output touch position in the 感X sensing direction are the specific ones of the coordinates A* (χ+1) and (2N+1) virtual coordinates (for example, the virtual coordinates enclosed by the ellipse in FIG. 3). Among them, the larger the ratio (he/Shi), the closer the coordinate of the output touch position in the χ sensing direction is to the coordinate Α* (χ+1), and the value of ^Εχ is correspondingly larger. Similarly, referring to FIG. 4', when a single finger 2 〇 touches the capacitive sensing pad array 120 of the capacitive touch panel 201032112 12, a specific (y+Ι) sensing is found in the Y sensing direction. The pad 1203Ρ and the yth sensing pad 1203Ρ acquire the sensing energy difference AEy and the position distance ADy of the (y+th)th sensing pad 1203P and the yth sensing pad 1203P. Wherein, the (y+1)th sensing pad i2〇3P is the highest sensing energy in the γ sensing direction when the finger 20 touches the capacitive sensing pad array 120, and the yth sensing pad 1203P is the same (y+l) the highest sensing energy in the sensing pad 1203P adjacent to the sensing pad; the position distance ADy of the (y+1)th sensing integer 1203P and the yth sensing pad 1203P is, for example, The length of the connection between the geometric centers of the two Cy.
參見圖5 ’其繪示依據感測能量差值AEy與位置距離△ Dy之間的比值（^Ey/ADy)設定於γ感測方向上的輸出觸 碰位置在第（y+i)個感測墊1203P與第y個感測墊12〇3p間 的特定處之步驟。具體地可包括下列步驟： (I)利用内插法在第（y+Ι)個感測墊12〇3p與第y個咸 測墊1203P於Y感測方向上分別對應的座標B* (^+1)與座 標B*y之間内插（2M+1)個虛擬座標。其中，Β4γ感須;方 向上之座標放大係數，座標B* (y+1 )與座標B*y之間的中點 座標為（B*y+B/2)，每相鄰的兩個座標之間的距離 (M+1)。 — (II)依據第（y+Ι )個感測墊1203P與第y個感測塾i2〇3p 之感測能量差值ΔΕγ與位置距離之間的比值（△Referring to FIG. 5', the ratio of the sensed energy difference AEy to the position distance ΔDy (^Ey/ADy) is set in the gamma sensing direction at the (y+i)th sense. The step of the specific portion between the pad 1203P and the yth sensing pad 12〇3p. Specifically, the method may include the following steps: (I) using the interpolation method to respectively correspond to the coordinate B* of the (y+Ι)th sensing pad 12〇3p and the yth salt pad 1203P in the Y sensing direction. +1) Interpolate (2M+1) virtual coordinates with coordinates B*y. Where Β4γ sensation; the coordinate amplification factor in the direction, the midpoint coordinate between the coordinate B* (y+1) and the coordinate B*y is (B*y+B/2), and each adjacent two coordinates The distance between (M+1). — (II) The ratio between the sensed energy difference ΔΕγ and the positional distance of the (y+Ι)th sensing pad 1203P and the yth sensing 塾i2〇3p (Δ)
Dy) ’設定於γ感測方向上的輸_碰位置的座標為座標b* (y+Ι)與（2M+1)個虛擬座標中的特定者（例如圖$循圓圈 住的虛擬座標）。其中，比值UEy/ADy)越大，於 方向上的輸出觸碰位置的座標越靠近座標 ：、 的值相應地也就越大。 y 9 201032112 至此’可得知手指20在電容式觸控面板12之電容式感測 陣列120的觸碰位置之座標，亦即前述於χ、γ感測方向上 之輸出觸碰位置之座標。對於本實施例提出的前述觸控偵測方 法，圖2及圖3繪示之步驟可由電容式觸控面板1〇之父感測 方向處理裝置122執行，圖4及圖5繪示之步驟可由電容式觸 控面板10之Υ感測方向處理裝置ι24執行。 ❹ ❹ 需，說明的是’本發明前述實施例提出的觸控債測方法雖 、、:僅以單闕碰作為舉例進行說明，然其同樣義於多點觸碰 =It形。於多點觸碰之情形下，針對每一個觸碰位置執行一次 發明實施例提出_控_方法’即可獲得對應各個觸碰位 置之於X、γ感測方向上之輸出觸碰位置。 綜上所述’本發明前述實施例利用電容式觸控面板之物體 例如手指）接觸到感測整面積和感難量絲比的特性 墊之間内插出更多的座標，並依據其感測能量差值 署fr1氣值’來推算出更接近物體實際觸碰的位 2因此’可財效的齡電料觸碰秘 對應到較高解析度之顯示面板後會造成的失真。X並降低 另外’熟習此技藝者還可對本發明前述實 偵測方法及電容式觸控系統做適當變更，例如適當改感^ =等電容式觸控系統之結構配置、及/或位置距離= 雖然本發明已啸佳實施觸露如 本發明，任何«此⑽者，在殘黯軸用以限疋 附之幸請專利範圍所界定者為準。 更靶圍田視後 【圖式簡單說明】 201032112 圖1係本發明實施例提出的一種電容式觸控系統之一結 構框圖。 圖2繪示本發明實施例提出的一種觸控偵測方法之於χ 感測方向上找出特定之兩個感測塾並獲取這兩個感測墊之感 測能量差值以及位置距離之步驟。 圖3繪示本發明實施例提出的觸控偵測方法之依據圖2 中找出的兩個特定之感測墊的感測能量差值與位置距離間的 比值設疋X感測方向上的輸出觸控位置之步驟。 圖4繪示本發明實施例提出的一種觸控偵測方法之於γ ® 感測方向上找出特定之兩個感測墊並獲取這兩個感測墊之感 測能量差值以及位置距離之步驟。 圖5緣示本發明實施例提出的觸控偵測方法之依據圖4 中找出的兩個特定之感測墊的感測能量差值與位置距離間的 比值設定Υ感測方向上的輸出觸控位置之步驟。。 【主要元件符號說明】 10.:電容式觸控系統 12 :電容式觸控面板 〇 120 :電容式感測墊陣列 1201、1203 :感測線 122 : X感測方向處理裝置 123 .通訊介面 124 : Υ感測方向處理裝置 13 :主通訊介面 14 :主機 16 ♦顯示面板 =遊標 201032112 △ Ex、AEy :感測能量差值 △ Dx、△ Dy :位置距離 Cx、Cy :幾何中心 1201P、1203P :感測墊 20 :手指Dy) 'The coordinates of the input_bump position set in the gamma sensing direction are the specific ones of the coordinates b* (y+Ι) and (2M+1) virtual coordinates (for example, the virtual coordinates of the circle circled) . Wherein, the larger the ratio UEy/ADy), the closer the coordinate of the output touch position in the direction is to the coordinate :, the corresponding value is correspondingly larger. y 9 201032112 So far, the coordinates of the finger 20 at the touch position of the capacitive sensing array 120 of the capacitive touch panel 12, that is, the coordinates of the output touch positions in the χ, γ sensing directions, are known. For the touch detection method of the present embodiment, the steps illustrated in FIG. 2 and FIG. 3 may be performed by the parent sensing direction processing device 122 of the capacitive touch panel 1 , and the steps illustrated in FIG. 4 and FIG. 5 may be performed. The Υ sensing direction processing device ι24 of the capacitive touch panel 10 is executed.需 需 需 ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控 触控In the case of multi-touch, an embodiment of the invention is proposed to perform an _control_method for obtaining an output touch position corresponding to each touch position in the X, γ sensing direction. In summary, the foregoing embodiment of the present invention utilizes an object such as a finger of a capacitive touch panel to contact a characteristic pad that senses the entire area and the ratio of the difficult-to-measure wire ratio, and interpolates more coordinates, and according to the sense The energy difference is measured by the fr1 gas value' to estimate the bit 2 that is closer to the actual touch of the object. Therefore, the energy-efficient age-sensitive material touches the distortion corresponding to the higher-resolution display panel. X and lowering another skilled person can also make appropriate changes to the above-described actual detection method and capacitive touch system of the present invention, for example, proper modification of the structure configuration of the capacitive touch system, and/or position distance = Although the present invention has been disclosed as the present invention, any of the persons (10) is subject to the definition of the patented scope of the wreckage axis. [FIG. 1] FIG. 1 is a block diagram of a structure of a capacitive touch system according to an embodiment of the present invention. 2 is a touch detection method according to an embodiment of the present invention for finding a specific two sensing 塾 in the sensing direction of the 塾 and acquiring the sensing energy difference and the position distance of the two sensing pads. step. FIG. 3 is a diagram showing the ratio of the sensing energy difference and the position distance of the two specific sensing pads found in FIG. 2 according to the touch detection method according to the embodiment of the present invention. The step of outputting the touch position. FIG. 4 illustrates a touch detection method according to an embodiment of the present invention for finding a specific two sensing pads in a γ ® sensing direction and acquiring sensing energy differences and position distances of the two sensing pads. The steps. FIG. 5 is a diagram showing the output of the touch detection method according to the embodiment of the present invention. The ratio between the sensed energy difference and the position distance of the two specific sensing pads found in FIG. 4 is set to the output in the sensing direction. The step of touching the location. . [Main component symbol description] 10. Capacitive touch system 12: Capacitive touch panel 〇120: Capacitive sensing pad array 1201, 1203: Sense line 122: X sensing direction processing device 123. Communication interface 124: Υ Sense direction processing device 13: Main communication interface 14: Host 16 ♦ Display panel = Cursor 201032112 △ Ex, AEy : Sensing energy difference △ Dx, △ Dy: Position distance Cx, Cy: Geometric center 1201P, 1203P: Sense Pad 20: finger
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