201235917 六、發明說明： 【發明所屬之技術領域】 本發明係有關於電容觸控技術的領域。更明確地說， 本發明係有關一種切換輪詢式電容觸控技術。 【先前技術】 電容觸控技術的發展目前已相當成熟，而且也被普遍 0 應用於各種產業。一般而言，常見的觸控面板按照其原理 的不同，通常可分爲電阻式、電容式、音波式和光學式。 目前的電容式觸控面板通常採用諸如菱形、方形、圓形、 梳狀形、螺旋形等等之形式的結構。電容觸控方式一般可 分成兩大類，一種是表面式電容觸控方式，而另一種則是 投射式電容觸控方式。 然而，因爲習知之觸控面板通常採用雙層結構，其中 之一層被使用做爲接地層，而另一層則被圖案化成爲所想 Φ 要的圖案樣式，以便藉由手指的觸摸而產生電容的變化， 藉以達成模擬按鍵功能之目的。也就是說，參照圖1，其 顯示常見之習知片狀導電薄膜的設計，其中，具有需要一 層四個的片狀導電薄膜^到14以及在片狀導電薄膜之周 圍的一層參考”接地”層1 5之雙層結構。因此，這會導致 習知之觸控面板在製作成本上的增加。 再者’參照圖2，其顯示習知手錶裝置之觸控面板的 示意結構圖。在圖2中，標號22表示手錶21的透明玻璃 層。在手錶21的外圍，使用軟性電路板薄膜23做爲用以 201235917 偵測電容的導電薄膜。然而，因爲軟性電路板薄膜23的 面積受限，所以電容偵測的靈敏度和穩定性較差。 【發明內容】 鑒於上述習知技術之缺點，本發明之目的在於提供一 種切換輪詢式電容觸控方法，其可顯著增加電容感測的靈 敏度和穩定性，並降低製作成本。 依據本發明之一樣態，提供有一種切換輪詢式電容觸 控方法，其包含：設置一透明底層；設置一透明導電薄膜 層於該透明底層的上方或下方，該透明導電薄膜層係以單 一層的方式且被形成爲複數個片狀之導電薄膜；設置一可 撓性電路板，用以將該複數個片狀之導電薄膜的各個片狀 導電薄膜連接至偵測電路；及設置一偵測電路，用以感測 該複數個片狀之導電薄膜之各個片狀導電薄膜上的電容値 ，並且將該複數個片狀之導電薄膜之各個片狀導電薄膜切 換至接地，其中，當想要感測該複數個片狀導電薄膜之其 中一個片狀導電薄膜上的電容値時，其他各個片狀導電薄 膜就會被切換成連接至地，而後以相同的方式，藉由依序 輪詢該複數個片狀導電薄膜的每一個片狀導電薄膜，就可 以得知各個片狀導電薄膜上的電容値。而且，當使用者的 手指靠近或接觸某一個片狀導電薄膜時，就會改變該片狀 導電薄膜上的電容値，藉此，就可以藉由偵測電路而得知 使用者的手指是否靠近或接觸哪一個片狀導電薄膜。 201235917 【實施方式】 現在，將於下文中參照附圖來說明依據本發明之較佳 實施例。然而，依據本發明之較佳實施例的敘述僅供做爲 舉例說明之用，而非用來限制本發明。 下面，參照圖3來說明依據本發明實施例之應用切換 輪詢式電容觸控技術之腕帶式裝置的結構。 圖3爲顯示依據本發明實施例之應用切換輪詢式電容 觸控技術之腕帶式裝置的示意平面視圖。 在圖3中，依據本發明之實施例的腕帶式裝置31係 首先在其顯示幕（未顯示出）的上方設置一層透明玻璃層 (未顯示出）；然而，透明玻璃層可以使用各式各樣的其 他透明材質來予以取代。 然後’在此透明玻璃層上，使用ITO電鍍製程而鍍上 單一層之透明的導電薄膜，此導電薄膜可被形成爲複數個 片狀的形式’在此實施例中，其係顯示爲六個片狀導電薄 膜3 2到3 7。 接著，使用可撓性電路板39，可將各個片狀導電薄 膜32到3 7經由個別的導線而分別連接至偵測電路（未顯 示出）。偵測電路係用來感測各個片狀導電薄膜3 2到3 7 上的電容値’並且可將各個片狀導電薄膜32到37切換至 接地。當使用者想要感測其中一個片狀導電薄膜上的電容 値時’其他各個片狀導電薄膜就會被切換成連接至地。依 此方式’依序輪詢每一個片狀導電薄膜，就可以得知各個 片狀導電薄膜32到37上的電容値。而且，當使用者的手 201235917 指靠近或接觸片狀導電薄膜時，就會改變片狀導電薄膜上 的電容値，藉此，就可以藉由偵測電路而得知使用者的手 指是否靠近或接觸哪一個片狀導電薄膜。 在實際的應用上，也能夠將片狀導電薄膜製作於透明 玻璃或其他各式各樣的透明材質的下方。這樣，就可以避 免因爲使用者的手指或物體直接接觸片狀導電薄膜，而造 成片狀導電薄膜的損壞。 因此，在此實施例中，僅需使用單一層的導電薄膜， 再配合上述能夠切換及/或偵測導電薄膜上的電容値和接 地之偵測電路，就可以達成在腕帶式裝置上，準確地偵測 出手指靠近或接觸的動作，進而將依據本發明之腕帶式裝 置使用做爲人機輸入介面，如同圖3中所示之腕帶式裝置 的片狀導電薄膜被使用做爲6個輸入按鍵。除此之外，如 果將導電薄膜形成爲九個片狀導電薄膜的形式，亦即，九 宮格的形狀，就可以有9個輸入按鍵，其餘依此類推。 使用上述根據切換輪詢式電容觸控技術的方法，不僅 可以偵測一個手指靠近或接觸一個片狀導電薄膜（亦即， 輸入按鍵）的動作，而且也能夠達成偵測多個手指靠近或 接觸多個片狀導電薄膜（亦即，輸入按鍵）的動作。 另外，在佈滿整個透明玻璃或其他各式各樣的透明材 質之上的片狀導電薄膜中，由於其面積較大，所以當手指 靠近或接觸片狀導電薄膜時，所感測到之電容値的改變幅 度更大，因而可以更加穩定、準確地偵測出手指的靠近或 接觸。201235917 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to the field of capacitive touch technology. More specifically, the present invention relates to a switching polling capacitive touch technology. [Prior Art] The development of capacitive touch technology is now quite mature, and it has also been widely used in various industries. In general, common touch panels are generally classified into resistive, capacitive, sonic, and optical, depending on their principles. Current capacitive touch panels typically employ structures such as diamonds, squares, circles, combs, spirals, and the like. The capacitive touch method can be generally divided into two categories, one is a surface capacitive touch method, and the other is a projected capacitive touch method. However, since the conventional touch panel usually adopts a two-layer structure, one layer is used as a ground layer, and the other layer is patterned into a desired pattern pattern to generate a capacitance by finger touch. Change, in order to achieve the purpose of the analog button function. That is, referring to Fig. 1, there is shown a conventional design of a sheet-like conductive film in which a sheet-like conductive film of 14 to 14 and a layer of reference "ground" around the sheet-shaped conductive film are required. The double layer structure of layer 15. Therefore, this leads to an increase in the manufacturing cost of the conventional touch panel. Further, referring to Fig. 2, there is shown a schematic structural view of a touch panel of a conventional wristwatch device. In Fig. 2, reference numeral 22 denotes a transparent glass layer of the wristwatch 21. On the periphery of the watch 21, a flexible circuit board film 23 is used as a conductive film for detecting capacitance in 201235917. However, since the area of the flexible circuit board film 23 is limited, the sensitivity and stability of the capacitance detection are poor. SUMMARY OF THE INVENTION In view of the above disadvantages of the prior art, it is an object of the present invention to provide a switching polling capacitive touch method that can significantly increase the sensitivity and stability of capacitive sensing and reduce manufacturing costs. According to the state of the present invention, there is provided a method for switching a polling capacitive touch, comprising: providing a transparent underlayer; and providing a transparent conductive film layer above or below the transparent underlayer, the transparent conductive thin film layer being single a layered manner and formed into a plurality of sheet-shaped conductive films; a flexible circuit board for connecting the respective sheet-shaped conductive films of the plurality of sheet-shaped conductive films to the detecting circuit; and setting a Detector a measuring circuit for sensing a capacitance 上 on each of the plurality of sheet-shaped conductive films and switching the respective sheet-shaped conductive films of the plurality of sheet-shaped conductive films to ground, wherein When sensing the capacitance 値 on one of the plurality of sheet-shaped conductive films, the other sheet-shaped conductive films are switched to be connected to the ground, and then polled in the same manner by sequentially The capacitance 値 on each of the sheet-like conductive films can be known for each of the plurality of sheet-like conductive films. Moreover, when the user's finger approaches or contacts a certain sheet-shaped conductive film, the capacitance 値 on the sheet-shaped conductive film is changed, thereby detecting whether the user's finger is close by detecting the circuit. Or which sheet-shaped conductive film is contacted. 201235917 [Embodiment] Now, a preferred embodiment according to the present invention will be described hereinafter with reference to the accompanying drawings. However, the description of the preferred embodiments of the present invention is intended to be illustrative only and not limiting. Next, the structure of a wristband device using a switched polling capacitive touch technique according to an embodiment of the present invention will be described with reference to FIG. 3 is a schematic plan view showing a wristband device using a switching polling capacitive touch technology according to an embodiment of the present invention. In Fig. 3, a wristband device 31 according to an embodiment of the present invention firstly provides a transparent glass layer (not shown) above its display screen (not shown); however, the transparent glass layer can be used in various forms. Replace with a variety of other transparent materials. Then, on the transparent glass layer, a single layer of a transparent conductive film is plated using an ITO plating process, and the conductive film can be formed into a plurality of sheet-like forms. In this embodiment, it is shown as six The sheet-like conductive film 3 2 to 37. Next, using the flexible circuit board 39, the respective sheet-like conductive films 32 to 37 can be respectively connected to a detecting circuit (not shown) via individual wires. The detecting circuit is for sensing the capacitance 値' on each of the sheet-like conductive films 3 2 to 37 and switching the respective sheet-shaped conductive films 32 to 37 to the ground. When the user wants to sense the capacitance 値 on one of the sheet-shaped conductive films, the other individual sheet-like conductive films are switched to be connected to the ground. In this way, each of the sheet-like conductive films is sequentially polled, and the capacitance 値 on the respective sheet-like conductive films 32 to 37 can be known. Moreover, when the user's hand 201235917 refers to approaching or contacting the sheet-shaped conductive film, the capacitance 値 on the sheet-shaped conductive film is changed, whereby the detecting circuit can be used to know whether the user's finger is close or Which sheet-shaped conductive film is contacted. In practical applications, it is also possible to form a sheet-like conductive film under a transparent glass or a variety of other transparent materials. Thus, it is possible to avoid damage of the sheet-like conductive film because the user's finger or object directly contacts the sheet-like conductive film. Therefore, in this embodiment, only a single layer of the conductive film is used, and the above-mentioned detection circuit capable of switching and/or detecting the capacitance 値 and the ground on the conductive film can be achieved on the wristband device. Accurately detecting the action of the finger approaching or contacting, and then using the wristband device according to the present invention as a human-machine input interface, as the sheet-like conductive film of the wristband device shown in FIG. 3 is used as 6 input buttons. In addition, if the conductive film is formed into the form of nine sheet-like conductive films, that is, the shape of the nine-square grid, there are nine input buttons, and so on. The above method according to the switching polling capacitive touch technology can not only detect the action of a finger approaching or contacting a sheet-shaped conductive film (ie, inputting a button), but also can detect the proximity or contact of multiple fingers. The action of a plurality of sheet-shaped conductive films (that is, input buttons). In addition, in the sheet-shaped conductive film which is spread over the entire transparent glass or various other transparent materials, since the area is large, the capacitance 感 is sensed when the finger approaches or contacts the sheet-shaped conductive film. The change is greater, so that the proximity or contact of the finger can be detected more stably and accurately.
S -8- 201235917 因此’從上述可知，依據本發明之切換輪詢式電容觸 控方法包含： 設置一透明底層； 設置一透明導電薄膜層於該透明底層的上方或下方， 該透明導電薄膜層係以單一層的方式且被形成爲複數個片 狀之導電薄膜； 設置一可撓性電路板，用以將該複數個片狀之導電薄 $ 膜的各個片狀導電薄膜連接至偵測電路；及 設置一偵測電路，用以感測該複數個片狀之導電薄膜 之各個片狀導電薄膜上的電容値，並且將該複數個片狀之 導電薄膜之各個片狀導電薄膜切換至接地， 其中，當想要感測該複數個片狀導電薄膜之其中一個 片狀導電薄膜上的電容値時，其他各個片狀導電薄膜就會 被切換成連接至地’而後以相同的方式，藉由依序輪詢該 複數個片狀導電薄膜的每一個片狀導電薄膜，就可以得知 Φ 各個片狀導電薄膜上的電容値。而且，當使用者的手指靠 近或接觸某一個片狀導電薄膜時，就會改變該片狀導電薄 膜上的電容値，藉此，就可以藉由偵測電路而得知使用者 的手指是否靠近或接觸哪一個片狀導電薄膜。 因而，依據本發明之切換輪詢式電容觸控方法可達成 下面的優點。 (1 ) 偵測電路可以將片狀導電薄膜連接至地，這 能夠降低EMI對需要被偵測之導電薄膜的千擾，也就是 說’可以增加偵測的穩定性。 -9- 201235917 (2) 當不需要感測片狀導電薄膜上之電容値時， 可以將所有的片狀導電薄膜接地，以便增加對ESD的防 護。 (3) 由於不需要額外的接地，所以可將整個玻璃 或各式各樣的透明材質的面積都使用做爲偵測薄膜，因而 提高偵測薄膜的面積，也就是說，增加偵測的靈敏度。 (4) 因爲不需要額外的接地，所以在連接之可撓 性電路板的線路上，可以減少一個接線，也就是說，能夠 減少可撓性電路板的寬度以及降低其成本。 (5) 習知之腕帶式裝置的人機輸入介面通常爲實 體的機械式按鍵，例如，電子手錶的按鍵，而這些按鍵通 常是設置在手錶的側邊，所以常常會干擾到手錶配戴者之 手腕關節的動作，因而造成使用者的不舒適感。然而，當 使用依據本發明之腕帶式裝置時，就不會有此種困擾。 故由前述本發明之較佳實施例的詳細說明可知，本發 明提供一種切換輪詢式電容觸控技術及應用切換輪詢式電 容觸控技術之腕帶式裝置，可顯著增加電容偵測的穩定性 ，並降低製作成本，確實爲一兼具新穎性及進步性之設計 ，應可符合專利之申請要件，爰依法提出申請。 【圖式簡單說明】 爲使 貴審査委員能夠進一步瞭解本發明之優點、 特徵及其他目的，茲附以圖式詳細說明於下。 圖式部分：S -8-201235917 Therefore, it can be seen from the above that the switching polling capacitive touch method according to the present invention comprises: providing a transparent underlayer; and providing a transparent conductive film layer above or below the transparent underlayer, the transparent conductive film layer Forming a plurality of sheet-like conductive films in a single layer; and providing a flexible circuit board for connecting the plurality of sheet-like conductive thin films of the respective sheet-shaped conductive films to the detecting circuit And a detecting circuit for sensing a capacitance 上 on each of the plurality of sheet-shaped conductive films and switching the respective sheet-shaped conductive films of the plurality of sheet-shaped conductive films to the ground Wherein, when it is desired to sense the capacitance 値 on one of the plurality of sheet-shaped conductive films, the other sheet-shaped conductive films are switched to be connected to the ground' and then borrowed in the same manner. By sequentially polling each of the plurality of sheet-shaped conductive films of the plurality of sheet-like conductive films, the capacitance Φ on each of the sheet-like conductive films can be known. Moreover, when the user's finger approaches or contacts a certain sheet-shaped conductive film, the capacitance 値 on the sheet-shaped conductive film is changed, thereby detecting whether the user's finger is close by detecting the circuit. Or which sheet-shaped conductive film is contacted. Thus, the switching polling capacitive touch method according to the present invention achieves the following advantages. (1) The detection circuit can connect the sheet-shaped conductive film to the ground, which can reduce the EMI interference of the conductive film to be detected, that is, it can increase the stability of detection. -9- 201235917 (2) When it is not necessary to sense the capacitance 上 on the sheet-shaped conductive film, all the sheet-shaped conductive films can be grounded to increase the protection against ESD. (3) Since no additional grounding is required, the entire glass or a variety of transparent materials can be used as the detection film, thereby increasing the area of the detection film, that is, increasing the sensitivity of detection. . (4) Since no additional grounding is required, one wiring can be reduced on the wiring of the connected flexible circuit board, that is, the width of the flexible circuit board can be reduced and the cost can be reduced. (5) The human input interface of the conventional wristband device is usually a physical mechanical button, for example, an electronic watch button, and these buttons are usually placed on the side of the watch, so often interfere with the watch wearer. The movement of the wrist joints causes the user's discomfort. However, when the wristband device according to the present invention is used, there is no such trouble. Therefore, the detailed description of the preferred embodiment of the present invention shows that the present invention provides a hand-held polling capacitive touch technology and a wristband device that uses a switching polling capacitive touch technology, which can significantly increase the capacitance detection. Stability, and reduce production costs, is indeed a novelty and progressive design, should be able to meet the patent application requirements, and apply in accordance with the law. BRIEF DESCRIPTION OF THE DRAWINGS In order to enable the reviewing committee to further understand the advantages, features, and other objects of the present invention, the drawings are described in detail below. Schema part:
S -10- 201235917 圖1係顯示習知片狀導電薄膜的設計之圖形。 圖2係顯示習知手錶裝置之觸控面板的示意結構圖。 圖3係顯示依據本發明實施例之應用切換輪詢式電容 觸控技術之腕帶式裝置的示意平面視圖。 【主要元件符號說明】 1 1〜14 :片狀導電薄膜 15 :參考”接地”層 21 :手錶 22 :透明玻璃層 23 :軟性電路板薄膜 3 1 :腕帶式裝置 32~37 :片狀導電薄膜 3 9 :可撓性電路板S -10- 201235917 Fig. 1 is a diagram showing the design of a conventional sheet-like conductive film. 2 is a schematic structural view showing a touch panel of a conventional wristwatch device. 3 is a schematic plan view showing a wristband device applying a switching polling capacitive touch technology according to an embodiment of the present invention. [Main component symbol description] 1 1 to 14: Sheet-shaped conductive film 15: Reference "grounding" layer 21: Watch 22: Transparent glass layer 23: Flexible circuit board film 3 1 : Wristband device 32 to 37: Sheet-shaped conductive Film 3 9 : Flexible circuit board
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