TWI512585B - Capacitive touch panel and manufacture method thereof - Google Patents
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Description
本發明係一觸控板，尤指一種具有雙層基板結構的電容式觸控板。The invention relates to a touch panel, in particular to a capacitive touch panel having a double-layer substrate structure.
請參閱圖6所示，現有技術的電容式觸控板係有一種單層且感應電極沿單一軸向排列的一維單層電容式觸控板，該一維單層電容式觸控板係具有一基板40，並於該基板40之其中一表面形成有複數電極對41，各電極對41包含有二相反設置的三角形電極411，故每個電極對41的其中一個三角形電極411的寬度會沿著第二軸遞增，而另一個三角形電極411寬度則沿著第二軸遞減。為保護該些三角形電極411，在應用上，會在於該基板40上形成有該複數三角形電極411之同側面設有一保護面蓋(cover lens；圖中未示)，保護面蓋可以使用黏膠與該基板40貼合，並供使用者接觸而達到觸控功能。Referring to FIG. 6 , the prior art capacitive touch panel has a single-layer single-layer capacitive touch panel with single sensing electrodes arranged along a single axial direction. The one-dimensional single-layer capacitive touch panel is A substrate 40 is formed, and a plurality of electrode pairs 41 are formed on one surface of the substrate 40. Each electrode pair 41 includes two oppositely disposed triangular electrodes 411, so that the width of one of the triangular electrodes 411 of each electrode pair 41 is The increment along the second axis, while the width of the other triangular electrode 411 decreases along the second axis. In order to protect the triangular electrodes 411, a protective cover (not shown) may be disposed on the same side of the plurality of triangular electrodes 411 on the substrate 40, and the protective cover may use an adhesive. It is attached to the substrate 40 and is in contact with the user to achieve a touch function.
上述一維單層電容式觸控板會經由外加電路周期地施加驅動訊號予各三角形電極411中，並接收各三角形電極411之電容感應值，在尚未有手指接觸該保護面蓋時，各三角形電極411的電容感應值差異不大，而當手指觸碰該保護面蓋之任一位置時，該手指接觸位置的三角形電極411之電容感應值便會改變，故可根據改變的電容感應值辨識該手指的第一軸觸碰位置201。又因該電極對41係包含二相反設置的三角形電極411，故可藉由二個三角形電極411將會接收不同電容感應值，且該二電容感應值的比例會與手指位置對應該二個三角形電極411處的寬度比例相關，故藉由二電容感應值的比例獲得手指第二軸位置；因此，即可獲得該手指的第一軸及第二軸位置，計算手指觸碰位置座標，以達到觸控之目的。The one-dimensional single-layer capacitive touch panel periodically applies a driving signal to each of the triangular electrodes 411 via an external circuit, and receives the capacitance sensing value of each of the triangular electrodes 411. When the protective cover is not touched by the finger, the triangles are The capacitance sensing value of the electrode 411 is not much different, and when the finger touches any position of the protective surface cover, the capacitance sensing value of the triangular electrode 411 of the finger contact position changes, so that the capacitance sensing value can be identified according to the changed capacitance. The first axis of the finger touches position 201. Moreover, since the electrode pair 41 includes two oppositely disposed triangular electrodes 411, the two triangular electrodes 411 can receive different capacitance sensing values, and the ratio of the two capacitance sensing values corresponds to the finger position by two triangles. The width ratio of the electrode 411 is related, so the second axis position of the finger is obtained by the ratio of the two capacitance sensing values; therefore, the first axis and the second axis position of the finger can be obtained, and the coordinates of the finger touch position can be calculated to achieve The purpose of touch.
然而上述一維單層電容式觸控板只能用於單指辨識，並無法應用於多指辨識，故對於需要用於高準確度的觸控應用時，便無法使用該一維單層電容式觸控板。However, the above-mentioned one-dimensional single-layer capacitive touch panel can only be used for single-finger identification, and cannot be applied to multi-finger identification, so the one-dimensional single-layer capacitor cannot be used when it is required for high-accuracy touch applications. Touch panel.
惟，該一維單層電容式觸控板係具有結構簡單且成本低的優勢，雖然準確度較低且無法用於多點觸控，但對於某些無須使用多點觸控功能且無需高準確度感應的應用亦不失一項好的選擇。實際上開發相關應用產品時，容易遇見變更設計條件的情況，若設計階段原訂採用該一維單層電容式觸控板，但因新增功能而需要高精準度的電容式觸控板時，只能重新設計二維雙層的電容式觸控板，但已大量生產或採買的一維單層電容式觸控板便因無法延續使用而存入倉庫庫存，且電子產品的保存條件嚴苛，若無法妥善的保存，則久了就會損毀報廢，這對應用產品端的設計者而言勢必得承擔更大的庫存風險。故欲沿用現有技術的一維單層電容式觸控板並提高準確度時，勢必要作進一步之改良。However, the one-dimensional single-layer capacitive touch panel has the advantages of simple structure and low cost, and although it has low accuracy and cannot be used for multi-touch, it does not need to use multi-touch function and does not need to be high. The application of accuracy sensing is also a good choice. In fact, when developing related application products, it is easy to encounter changes in design conditions. If the one-dimensional single-layer capacitive touch panel is originally designed in the design stage, when a high-accuracy capacitive touch panel is required due to new functions, Only two-dimensional double-layer capacitive touch panels can be redesigned, but the one-dimensional single-layer capacitive touch panels that have been mass-produced or purchased are stored in warehouse inventory because they cannot be used continuously, and the electronic products are kept in strict condition. If it is not properly preserved, it will be destroyed for a long time, which will inevitably bear greater inventory risks for the designer of the application side. Therefore, in order to use the one-dimensional single-layer capacitive touch panel of the prior art and improve the accuracy, it is necessary to further improve.
請參閱圖7所示，現有技術還有一種二維單層電容式觸控板，該二維單層電容式觸控板具有複數二維驅動電極51與複數二維接收電極52；其中一種具體結構係將該複數二維驅動電極矩陣排列於一基板50上，而各二維接收電極52間係沿第一軸排列，並包圍沿第二軸方向分布的並位於同一排上複數驅動電極51。Referring to FIG. 7, the prior art also has a two-dimensional single-layer capacitive touch panel having a plurality of two-dimensional driving electrodes 51 and a plurality of two-dimensional receiving electrodes 52; A specific structure is that the plurality of two-dimensional driving electrode arrays are arranged on a substrate 50, and the two-dimensional receiving electrodes 52 are arranged along the first axis, and are surrounded by the second axis and are located on the same row. The electrode 51 is driven.
當使用者於使用手指觸碰觸控面板的觸控區中之任一位置時，對準該手指的二維驅動電極51之電容值便會改變，該二維單層電容式觸控板會經由外加電路施加驅動訊號進入各二維驅動電極51中，並於各二維接收電極52中接收該驅動訊號以檢測各第一軸極之電容值，並可得知電容值改變之二維驅動電極51為何。因該二維驅動電極51係呈矩陣排列於該基板50上，便根據該電容值改變的二維驅動電極51即可得知手指觸碰位置座標，達到觸控之目的。When the user touches any position in the touch area of the touch panel with a finger, the capacitance value of the two-dimensional driving electrode 51 that is aligned with the finger changes, and the two-dimensional single-layer capacitive touch panel will The driving signal is applied to each of the two-dimensional driving electrodes 51 via an external circuit, and the driving signals are received in the two-dimensional receiving electrodes 52 to detect the capacitance values of the first axes, and the two-dimensional driving of the capacitance value change is known. What is the electrode 51. Since the two-dimensional driving electrodes 51 are arranged in a matrix on the substrate 50, the two-dimensional driving electrode 51 changed according to the capacitance value can be used to know the coordinates of the finger touch position, and the touch is achieved.
雖然該二維單層電容式觸控板可識別多指以用於多點觸控，但對於識別精確度要求更高的應用，則同樣無法採用，勢必要作進一步之改良。Although the two-dimensional single-layer capacitive touch panel can recognize multi-finger for multi-touch, it is also unusable for applications with higher recognition accuracy, and further improvement is necessary.
有鑑於前述現有技術的缺點，本發明的主要目的係提供一種改良現有的一維或二維的單層電容式觸控板，以轉換成雙層基板結構的電容式觸控板及一種電容式觸控板的製造方法，提高一維或二維的單層電容式觸控板的應用彈性。In view of the foregoing shortcomings of the prior art, the main object of the present invention is to provide a capacitive touch panel and a capacitive type which are improved by converting a conventional one-dimensional or two-dimensional single-layer capacitive touch panel into a two-layer substrate structure. The manufacturing method of the touch panel improves the application flexibility of the one-dimensional or two-dimensional single-layer capacitive touch panel.
依據本發明所採用的技術手段之電容式觸控板可包含有一第一基板及一第二基板。該第一基板係可為電容感應器基板，並於其一側表面上設有一第一單層電極層，該第一單層電極層包含有複數第一電極，該些第一電極形成複數電極對，每一電極對具有複數電極；該第二基板係結合於該電容感應器基板上並與該第一單層電極層同側，並可選擇地設有一第二單層電極層，且該第二單層電極層包含複數第二電極。當該第二基板未設置該第二單層電極層時，即為現有的一維或二維的單層電容式觸控板，該第一單層電極層的複數電極對可獨立地使用以檢知物體位置；當該第二基板設置該第二單層電極層，且每一該電極對中的該些電極形成一第三電極時，該些第三電極與該些第二電極形成雙層電容式感應結構，以檢知物體位置。The capacitive touch panel according to the technical means adopted by the present invention may include a first substrate and a second substrate. The first substrate may be a capacitive sensor substrate, and a first single layer electrode layer is disposed on one surface thereof, the first single layer electrode layer includes a plurality of first electrodes, and the first electrodes form a plurality of electrodes Each of the electrode pairs has a plurality of electrodes; the second substrate is coupled to the capacitive sensor substrate and is coplanar with the first single layer electrode layer, and optionally a second single layer electrode layer is disposed. The second single layer electrode layer includes a plurality of second electrodes. When the second single-layer electrode layer is not disposed on the second substrate, which is an existing one-dimensional or two-dimensional single-layer capacitive touch panel, the plurality of electrode pairs of the first single-layer electrode layer can be used independently Detecting the position of the object; when the second substrate is provided with the second single-layer electrode layer, and the electrodes of each of the pair of electrodes form a third electrode, the third electrodes form a double with the second electrodes A layered capacitive sensing structure to detect the position of the object.
進一步而言，為達上述目的，依據本發明之另一技術手段，即係為一種電容式觸控板的製造方法，該方法提供一第一基板與一第二基板；並在該第一基板的一側表面上形成一第一單層電極層，該第一單層電極層包含有複數第一電極，該些第一電極形成複數電極對，每一該電極對具有複數電極；而在該第二基板的一側表面上形成一第二單層電極層，該第二單層電極層包含複數第二電極；透過將該第一基板上的每一電極對中該些電極予以短路，以形成複數第三電極；並使用該些第三電極與該些第二電極形成的一雙層電容式感應結構來檢知物件。Further, in order to achieve the above object, another technical means according to the present invention is a method for manufacturing a capacitive touch panel, the method providing a first substrate and a second substrate; and the first substrate Forming a first single layer electrode layer on a side surface thereof, the first single layer electrode layer includes a plurality of first electrodes, the first electrodes forming a plurality of electrode pairs, each of the electrode pairs having a plurality of electrodes; Forming a second single-layer electrode layer on one surface of the second substrate, the second single-layer electrode layer includes a plurality of second electrodes; and short-circuiting the electrodes in each electrode pair on the first substrate Forming a plurality of third electrodes; and using the two-layer capacitive sensing structure formed by the third electrodes and the second electrodes to detect the object.
採用本發明的製造方法製作的電容式觸控板係一雙層結構的電容式觸控板。該第一基板及其第一電極即係一維或二維的單層電容式觸控板，將該第一基板上的複數電極分成複數電極對，並將複數電極對中的各第一電極相互電連接，形成各呈第一軸排列的第三電極，故只要再配合使用形成有呈第二軸排列的複數第二電極之第二基板，即可構成具有較高辨別準確度的雙層結構的電容式觸控板。因此，藉由本發明，即可沿用該一維單層電容式觸控板與該二維單層電容式觸控板，製作出雙層結構的電容式觸控板，對使用者而言，減少了庫存的風險，也減少了廢料的產生，並可針對不同的需求使用不同的電容式觸控板，故本發明確有解決前述缺點之功效。The capacitive touch panel fabricated by the manufacturing method of the present invention is a two-layer capacitive touch panel. The first substrate and the first electrode thereof are a one-dimensional or two-dimensional single-layer capacitive touch panel, and the plurality of electrodes on the first substrate are divided into a plurality of electrode pairs, and each of the first electrodes of the plurality of electrodes is paired Electrically connected to each other to form a third electrode arranged in a first axis, so that a second substrate having a plurality of second electrodes arranged in a second axis can be used in combination to form a double layer having higher discrimination accuracy. Structured capacitive touch panel. Therefore, with the present invention, the one-dimensional single-layer capacitive touch panel and the two-dimensional single-layer capacitive touch panel can be used to fabricate a two-layer capacitive touch panel, which is reduced for the user. The risk of inventory also reduces the generation of waste, and different capacitive touch panels can be used for different needs, so the present invention does have the effect of solving the aforementioned drawbacks.
以下配合圖式及本發明之較佳實施例，進一步闡述本發明為達成預定目的所採取的技術手段。The technical means adopted by the present invention for achieving the intended purpose are further explained below in conjunction with the drawings and preferred embodiments of the present invention.
請參圖1至圖4所示，為本發明之雙層電極的電容式觸控板，係可應用於如玻璃/薄膜(G/F)的電容式觸控面板、上嵌式(on cell)的電容式觸控板或類似的觸控面板等，並包含有一第一基板10與一第二基板20，在本發明之較佳實施例中，第一基板10與第二基板20係為透明或可透光之板體；其中該第一基板10的一側表面上設有一第一單層電極層100，第一單層電極層100可為一維單層電容式觸控板或二維單層電容式觸控板，且該第一單層電極層100包含有複數第一電極11，可獨立地使用以檢知物體(如手指或筆)位置。Referring to FIG. 1 to FIG. 4 , the capacitive touch panel of the double-layer electrode of the present invention can be applied to a capacitive touch panel such as a glass/film (G/F), and an on-cell type (on cell). a capacitive touch panel or the like, and a first substrate 10 and a second substrate 20. In the preferred embodiment of the present invention, the first substrate 10 and the second substrate 20 are a transparent or permeable plate body; wherein a first single layer electrode layer 100 is disposed on one surface of the first substrate 10, and the first single layer electrode layer 100 can be a one-dimensional single-layer capacitive touch panel or two A single-layer capacitive touch panel, and the first single-layer electrode layer 100 includes a plurality of first electrodes 11 that can be used independently to detect the position of an object such as a finger or a pen.
該第二基板20結合於該第一基板10，可用以保護複數第一電極11，由於第一單層電極層100可獨立地使用以檢知物體(如手指或筆)位置，因此在當第二基板20上沒有設置電極時，即可提供觸控功能。不過因應不同產品的設計需求，當產品的設計需要使用雙層結構之觸控板時，如能直接使用第一單層電極層100作為雙層結構之觸控板的其中一電極層，即可增加製造上之彈性。因此於本發明實施例的雙層電極的電容式觸控板，係將該第二基板20面向該第一基板10之一側表面形成設有一第二單層電極層200，而該第二單層電極層200包含有複數第二電極21。簡言之，當第二基板未形成有第二單層電極層200，本發明的電容式觸控板即作為一維或二維單層電容式觸控板使用；當作為雙層電極之電容式觸控板使用，即將形成有第二電極21的第二基板20覆蓋貼合在該第一基板10的一側表面使用；是以，該第二基板可依據需求來選擇形成有第二單層電極層200。在本較佳實施例中，如電容式觸控板係為玻璃/薄膜(G/F)的電容式觸控板的應用時，該第一基板10可為透明的薄膜板，該第二基板20可為透明的玻璃板。在另一實施例中，如電容式觸控板為上嵌式(on cell)的電容式觸控板應用時，該第一基板10可為液晶顯示器(LCM)的彩色濾光基板，該第二基板20可為保護面蓋(cover lens)。該第一基板10與第二基板20係可由光學膠或水膠全面貼合，亦可於第一基板10與第二基板20周圍之間貼有雙面膠，令第二基板20框貼於第一基板10的周圍，並於其間形成氣隙(air-gap)，或是使用其他於此項技術領域中所通常使用的技術手段結合兩者。The second substrate 20 is coupled to the first substrate 10 and can be used to protect the plurality of first electrodes 11. Since the first single-layer electrode layer 100 can be used independently to detect the position of an object (such as a finger or a pen), When no electrode is provided on the two substrates 20, a touch function can be provided. However, in response to the design requirements of different products, when the design of the product requires the use of a two-layer touch panel, if the first single-layer electrode layer 100 can be directly used as one of the electrode layers of the two-layer touch panel, Increase the flexibility of manufacturing. Therefore, in the capacitive touch panel of the double-layer electrode of the embodiment of the present invention, the second substrate 20 is formed on a side surface of the first substrate 10 to form a second single-layer electrode layer 200, and the second single The layer electrode layer 200 includes a plurality of second electrodes 21. In short, when the second substrate is not formed with the second single-layer electrode layer 200, the capacitive touch panel of the present invention is used as a one-dimensional or two-dimensional single-layer capacitive touch panel; The touch panel is used, that is, the second substrate 20 on which the second electrode 21 is formed is covered and applied to one side surface of the first substrate 10; so that the second substrate can be selected to form a second single according to requirements. Layer electrode layer 200. In the preferred embodiment, when the capacitive touch panel is a glass/film (G/F) capacitive touch panel, the first substrate 10 can be a transparent film panel, and the second substrate can be a transparent substrate. 20 can be a transparent glass plate. In another embodiment, when the capacitive touch panel is applied to an on-cell capacitive touch panel, the first substrate 10 can be a color filter substrate of a liquid crystal display (LCM). The second substrate 20 may be a cover lens. The first substrate 10 and the second substrate 20 may be integrally bonded by optical glue or water glue, or a double-sided tape may be attached between the first substrate 10 and the second substrate 20 to make the second substrate 20 be attached to the substrate. The first substrate 10 is surrounded and an air-gap is formed therebetween, or both are combined using other technical means commonly used in the art.
以下分別就電容式觸控板應用於一維單層或二維單層電容式觸控板實現本發明的雙層電極之電容式觸控板詳加說明之。The following is a detailed description of the capacitive touch panel of the double-layer electrode of the present invention in which the capacitive touch panel is applied to a one-dimensional single-layer or two-dimensional single-layer capacitive touch panel.
請參閱圖1所示，係為本發明實施例雙層電容式觸控板之第一較佳實施例，即其第一基板10為一維單層電容式觸控板，故該複數第一電極11係分別為一三角形電極，且二相鄰之三角形電極係相反設置並形成一電極對111，而該些第一電極11的三角形電極係沿第一軸向排列。當使用未設有該第二單層電極層200的第二基板20結合於第一基板10時，本較佳實施例的電容式觸控板即可配合一維單層電容式觸控板的驅動電路進行單指或多指識別應用，至於單指或多指識別應用技術為習知技術，在此不再贅述。Referring to FIG. 1 , it is a first preferred embodiment of a double-layer capacitive touch panel according to an embodiment of the present invention, that is, the first substrate 10 is a one-dimensional single-layer capacitive touch panel, so the first plurality The electrodes 11 are respectively a triangular electrode, and two adjacent triangular electrodes are oppositely disposed and form an electrode pair 111, and the triangular electrodes of the first electrodes 11 are arranged along the first axial direction. When the second substrate 20 not provided with the second single-layer electrode layer 200 is bonded to the first substrate 10, the capacitive touch panel of the preferred embodiment can be matched with the one-dimensional single-layer capacitive touch panel. The driving circuit is used for the single-finger or multi-finger identification application. The single-finger or multi-finger identification application technology is a conventional technology, and details are not described herein.
當使用設有該第二單層電極層200的第二基板20結合於第一基板10時，各電極對111中的二個對應的三角形電極係相互短路形成一第三電極112，且該第三電極112係沿第一軸向排列(如X軸向)，而該第二單層電極層200的第二電極21係沿第二軸向排列(如Y軸向)，在本較佳實施例中，該第二軸向與該第一軸向為實質上垂直，即可構成雙層電極之電容式觸控板。此時，該些第三電極112可接收驅動訊號做為驅動電極，當該些第三電極112為驅動電極，則該些第二電極21則為接收電極；反之，若該些第三電極112若為接收電極，則該些第二電極21則為驅動電極，均可配合互容式掃描方式進行多指識別。以該些第三電極112為接收電極而該些第二電極21為驅動電極為例，於進行互容式掃描時，係周期地分別對第二電極21輸出驅動訊號，並於同一周期內各次驅動訊號21輸出期間，分別讀取複數第三電極112的電容值，當完成所有第二電極21驅動，則可獲得第二電極21與第三電極112交錯之感應點的感應電容值。若有如手指等物件觸碰該第二基板20，則手指處的感應點的感應電容值會與其周遭感應點的感應電容值不同，而計算出該手指觸碰位置座標，以達到觸控動作之目的。When the second substrate 20 provided with the second single-layer electrode layer 200 is bonded to the first substrate 10, two corresponding triangular electrodes of the electrode pairs 111 are short-circuited with each other to form a third electrode 112, and the first electrode The three electrodes 112 are arranged along the first axial direction (such as the X-axis), and the second electrodes 21 of the second single-layer electrode layer 200 are arranged along the second axial direction (such as the Y-axis). In the example, the second axial direction is substantially perpendicular to the first axial direction, thereby forming a capacitive touch panel of a double-layer electrode. At this time, the third electrodes 112 can receive the driving signals as the driving electrodes. When the third electrodes 112 are the driving electrodes, the second electrodes 21 are the receiving electrodes; otherwise, if the third electrodes 112 are If the electrodes are the receiving electrodes, the second electrodes 21 are driving electrodes, and the multi-finger identification can be performed by the mutual capacitance scanning method. Taking the third electrodes 112 as the receiving electrodes and the second electrodes 21 as the driving electrodes, when the mutual capacitance scanning is performed, the driving signals are periodically output to the second electrodes 21, and are respectively in the same cycle. During the output of the sub-drive signal 21, the capacitance values of the plurality of third electrodes 112 are respectively read. When all the second electrodes 21 are driven, the value of the induced capacitance of the sensing points where the second electrodes 21 and the third electrodes 112 are interleaved can be obtained. If an object such as a finger touches the second substrate 20, the value of the sensing capacitance of the sensing point at the finger is different from the value of the sensing capacitance of the surrounding sensing point, and the coordinate of the finger touch position is calculated to achieve the touch action. purpose.
進一步而言，該電容式觸控板係包含有一電路板，如軟板30。該第一基板10上的各第一電極11的三角形電極係分別延伸有一引線至該第一基板10周邊的接合區12，該軟板30係貼合於該接合區12，並由該軟板30上的導線，使得各電極對111中的三角形電極對應的引線相互電連接而短路，以形成該第三電極112。在此說明以軟板實現電極的三角形電極短路僅為一實施例，但不以此為限。Further, the capacitive touch panel includes a circuit board such as a soft board 30. The triangular electrodes of the first electrodes 11 on the first substrate 10 respectively extend with a lead to the lands 12 of the periphery of the first substrate 10. The flexible board 30 is attached to the lands 12 and is used by the flexible board. The wires on the 30 are such that the leads corresponding to the triangular electrodes in the pair of electrodes 111 are electrically connected to each other and short-circuited to form the third electrode 112. It is to be noted that the short-circuiting of the triangular electrodes of the electrodes by the soft board is only an embodiment, but not limited thereto.
請參閱圖2及圖3所示，係為本發明之第二較佳實施例，即其第一基板10為二維單層電容式觸控板，故該第一單層電極層100係為二維單層電極層，且其第一電極11係包含有複數二維驅動電極113及複數二維接收電極114。該複數二維驅動電極113係沿第一軸向及第二軸向呈矩陣排列，該複數二維接收電極114係沿第一軸排列，且各二維接收電極114係分別包圍沿第二軸向分布且位於同一排中的複數二維驅動電極113，並與該二維驅動電極113保有間距；在本較佳實施例中，各二維接收電極114及其對應的複數二維驅動電極113交錯設置以構成一電極對111。在使用未設有該第二單層電極層200的第二基板20與第一基板10結合時，本較佳實施例的電容式觸控板即可配合二維單層電容式觸控板的驅動電路進行觸控應用，至於觸控應用技術為習知技術，在此不再贅述。2 and FIG. 3, which is a second preferred embodiment of the present invention, wherein the first substrate 10 is a two-dimensional single-layer capacitive touch panel, so the first single-layer electrode layer 100 is The two-dimensional single-layer electrode layer includes a plurality of two-dimensional driving electrodes 113 and a plurality of two-dimensional receiving electrodes 114. The plurality of two-dimensional driving electrodes 113 are arranged in a matrix along the first axial direction and the second axial direction. The plurality of two-dimensional receiving electrodes 114 are arranged along the first axis, and each of the two-dimensional receiving electrodes 114 is surrounded by the first a plurality of two-dimensional driving electrodes 113 that are axially distributed and located in the same row, and spaced from the two-dimensional driving electrode 113; in the preferred embodiment, each two-dimensional receiving electrode 114 and its corresponding complex number two The dimension driving electrodes 113 are alternately arranged to constitute an electrode pair 111. When the second substrate 20 not provided with the second single-layer electrode layer 200 is combined with the first substrate 10, the capacitive touch panel of the preferred embodiment can be combined with the two-dimensional single-layer capacitive touch panel. The driving circuit is used for the touch application. The touch application technology is a conventional technology and will not be described here.
當使用設有該第二單層電極層200的第二基板20與第一基板10結合時，各電極對111中的二維接收電極114及其對應的複數二維驅動電極113係相互短路，而形成該第三電極112，且該第三電極112係沿第一軸向排列。該第二單層電極層200的第二電極21係沿第二軸向排列設置。在本較佳實施例中，該第一軸向與該第二軸向係實質上垂直。此時，該些第三電極112可接收驅動訊號做為驅動電極，當該些第三電極112為驅動電極，則該些第二電極21則為接收電極；反之，若該些第三電極112若為接收電極，則該些第二電極21則為驅動電極，均可配合互容式掃描方式進行多指識別，其應用如上所述。When the second substrate 20 provided with the second single-layer electrode layer 200 is combined with the first substrate 10, the two-dimensional receiving electrodes 114 of the electrode pairs 111 and their corresponding complex two-dimensional driving electrodes 113 are short-circuited to each other. The third electrode 112 is formed, and the third electrode 112 is arranged along the first axial direction. The second electrodes 21 of the second single-layer electrode layer 200 are arranged in the second axial direction. In the preferred embodiment, the first axial direction is substantially perpendicular to the second axial system. At this time, the third electrodes 112 can receive the driving signals as the driving electrodes. When the third electrodes 112 are the driving electrodes, the second electrodes 21 are the receiving electrodes; otherwise, if the third electrodes 112 are If it is a receiving electrode, the second electrodes 21 are driving electrodes, and the multi-finger identification can be performed in a mutual capacitive scanning mode, and the application thereof is as described above.
進一步而言，該電容式觸控板係包含有一電路板，如軟板30。該第一基板10上的各第一電極11的複數二維驅動電極113及複數二維接收電極114係分別延伸有一引線至該第一基板10周邊的接合區12，該軟板30係貼合於該接合區12，並由該軟板30上的導線，使得各電極對111中的複數二維驅動電極113及一二維接收電極114所對應的引線相互電連接而短路，以形成該第三電極112。在此說明以軟板實現電極對的短路僅為一實施例，但不以此為限。Further, the capacitive touch panel includes a circuit board such as a soft board 30. The plurality of two-dimensional driving electrodes 113 and the plurality of two-dimensional receiving electrodes 114 of each of the first electrodes 11 on the first substrate 10 respectively extend a lead to the bonding region 12 around the first substrate 10, and the flexible board 30 is Bonded to the lands 12 and by the wires on the flexible board 30, the plurality of two-dimensional driving electrodes 113 and the leads corresponding to the two-dimensional receiving electrodes 114 in the pair of electrodes 111 are electrically connected to each other and short-circuited to The third electrode 112 is formed. It is to be noted that the short circuit of the electrode pair by the soft board is only an embodiment, but is not limited thereto.
請進一步參閱圖5所示，以下再進一步說明上述本發明電容式觸控板的製造方法，其包含有以下步驟：提供一第一基板10與一第二基板20(S11)，在本較佳實施例中，如電容式觸控板係為玻璃/薄膜(G/F)的電容式觸控板的應用時，該第一基板10可為透明的薄膜板，該第二基板20可為透明的玻璃板。在另一實施例中，如電容式觸控板為上嵌式(on cell)的電容式觸控板應用時，該第一基板10可為液晶顯示器(LCM)的彩色濾光基板，該第二基板20可為保護面蓋(cover lens)；形成一第一單層電極層100於該第一基板10的一側表面上，該第一單層電極層100包含有複數第一電極11，該些第一電極11形成複數電極對111，每一該電極對111具有複數電極(S12)，在本較佳實施例中，第一單層電極層100可為一維單層電容式電極層或二維單層電容式電極層，並可獨立地使用以檢知物體(如手指或觸控筆)位置；形成一第二單層電極層200於該第二基板20的一側表面上，該第二單層電極層200包含複數第二電極21(S13)，在本較佳實施例中，當因應不同設計需求時，可於第二基板20上形成第二單層電極層200，第二單層電極層200為本較佳實施例之雙層電容式觸控板的其中一層電極；將該第一基板10上的每一電極對111中該些電極予以短路，以形成複數第三電極112(S14)，在本較佳實施例中，第一單層電極層100因為已經使電極短路，此時已無法獨立地使用以檢知物體(如手指或筆)位置，但其所形成之第三電極112本較佳實施例之雙層電容式觸控板的其中一層電極，易言之，本較佳實施例之雙層電容式觸控板即是使用第二基板20上之第二單層電極層200與第三電極112用於檢知物體(如手指或觸控筆)位置；以及使用該些第三電極112與該些第二電極21形成一雙層電容式感應結構(S15)。Referring to FIG. 5, the method for manufacturing the capacitive touch panel of the present invention is further described below. The method includes the following steps: providing a first substrate 10 and a second substrate 20 (S11). In an embodiment, when the capacitive touch panel is a glass/film (G/F) capacitive touch panel, the first substrate 10 can be a transparent film panel, and the second substrate 20 can be transparent. Glass plate. In another embodiment, when the capacitive touch panel is applied to an on-cell capacitive touch panel, the first substrate 10 can be a color filter substrate of a liquid crystal display (LCM). The second substrate 20 may be a cover lens; a first single-layer electrode layer 100 is formed on one side surface of the first substrate 10, and the first single-layer electrode layer 100 includes a plurality of first electrodes 11, The first electrode 11 forms a plurality of electrode pairs 111, and each of the electrode pairs 111 has a plurality of electrodes (S12). In the preferred embodiment, the first single layer electrode layer 100 can be a one-dimensional single-layer capacitive electrode layer. Or a two-dimensional single-layer capacitive electrode layer, and can be used independently to detect the position of an object (such as a finger or a stylus); forming a second single-layer electrode layer 200 on one side surface of the second substrate 20, The second single-layer electrode layer 200 includes a plurality of second electrodes 21 (S13). In the preferred embodiment, the second single-layer electrode layer 200 can be formed on the second substrate 20 according to different design requirements. The two single-layer electrode layer 200 is one of the electrodes of the double-layer capacitive touch panel of the preferred embodiment; the first substrate 1 is Each of the electrode pairs 111 on the 0 is short-circuited to form a plurality of third electrodes 112 (S14). In the preferred embodiment, the first single-layer electrode layer 100 has been short-circuited by the electrode. It is not possible to independently use to detect the position of an object (such as a finger or a pen), but the formed third electrode 112 is one of the electrodes of the double-layer capacitive touch panel of the preferred embodiment. The double-layer capacitive touch panel of the embodiment uses the second single-layer electrode layer 200 and the third electrode 112 on the second substrate 20 for detecting the position of an object (such as a finger or a stylus); and using the The third electrode 112 and the second electrodes 21 form a double-layer capacitive sensing structure (S15).
進一步而言，該第一單層電極的複數第一電極11可為複數三角形電極，且如上述第一較佳實施例中所述，兩相鄰且反向的三角形電極係為該複數電極對111。該第一單層電極層100的各三角形電極還分別延伸一引線至該第一基板10周緣之接合區12；因此上述步驟(S14)的一種較佳作法係準備一軟板30，再將該軟板30對準該單層電容式觸控板其中一周邊之接合區後予以貼合，由該軟板30將同一電極對111對應的引線連接而短路，構成該些第三電極112。至於上述第二較佳實施例的電容式觸控板，由於其第一基板10上的各第一電極11的複數二維驅動電極113及複數二維接收電極114亦分別延伸有一引線至該第一基板10周邊的接合區12，故上述步驟(S14)用於製作第二較佳實施例的較佳作法，同樣準備一軟板30；將該軟板30對準該單層電容式觸控板其中一周邊之接合區12後予以貼合，由該軟板30將同一電極對111中該些二維驅動電極113及該二維接收電極114之引線連接而短路。Further, the plurality of first electrodes 11 of the first single layer electrode may be a plurality of triangular electrodes, and as described in the first preferred embodiment above, the two adjacent and opposite triangular electrodes are the plurality of electrode pairs. 111. Each of the triangular electrodes of the first single-layer electrode layer 100 further extends a lead to the land 12 of the periphery of the first substrate 10; therefore, a preferred method of the above step (S14) is to prepare a flexible board 30, and then After the soft board 30 is aligned with one of the peripheral bonding regions of the single-layer capacitive touch panel, the flexible board 30 is connected to the corresponding lead pair 111 and short-circuited to form the third electrodes 112. As for the capacitive touch panel of the second preferred embodiment, the plurality of two-dimensional driving electrodes 113 and the plurality of two-dimensional receiving electrodes 114 of each of the first electrodes 11 on the first substrate 10 respectively extend a lead to The bonding area 12 around the first substrate 10, so the above step (S14) is used to fabricate the preferred embodiment of the second preferred embodiment, and a soft board 30 is also prepared; the flexible board 30 is aligned with the single layer capacitive type. One of the peripheral contact regions 12 of the touch panel is then bonded, and the two-dimensional driving electrodes 113 of the same electrode pair 111 and the two-dimensional receiving electrodes 114 are short-circuited by the flexible board 30.
綜上所述，本發明係一種沿用一維或二維單層電容式觸控板，並轉換為一二維雙層電容式觸控板，本發明的電容式觸控板不僅可達到一般二維雙層電容式觸控板之功能，能以互容式的感應方法檢測觸碰點的位置，並可辨別多點觸控時的正確觸碰位置。In summary, the present invention is a one-dimensional or two-dimensional single-layer capacitive touch panel, and is converted into a two-dimensional double-layer capacitive touch panel. The capacitive touch panel of the present invention can not only reach the general two. The function of the double-layer capacitive touch panel can detect the position of the touch point by mutual capacitive sensing method, and can distinguish the correct touch position when multi-touch is used.
此外，本發明係將原有的一維或二維單層電容式觸控板沿用，利用更換軟板上的導線及具有複數第二電極的第二基板，相較於直接重新製作一個二維雙層電容式觸控板而言，本發明的步驟簡單且更換的成本低廉，且原有的一維或二維單層電容式觸控板可因應不同設計再利用，可減少庫存之風險，與廢料的產生，並可針對不同的使用者需求製作不同的電容式觸控板，故本發明確能有效的利用原有的電容式觸控板，提高一維或二維的單層電容式觸控板的應用彈性，以適用於不同使用者之需求。In addition, the present invention uses the original one-dimensional or two-dimensional single-layer capacitive touch panel, and replaces the wire on the flexible board with the second substrate having the plurality of second electrodes, and directly recreates a two-dimensional image. In the case of a double-layer capacitive touch panel, the steps of the present invention are simple and the replacement cost is low, and the original one-dimensional or two-dimensional single-layer capacitive touch panel can be reused according to different designs, thereby reducing the risk of inventory. With the generation of scraps and different capacitive touch panels for different user needs, the present invention can effectively utilize the original capacitive touch panels to improve one-dimensional or two-dimensional single-layer capacitive The application of the touchpad is flexible to suit the needs of different users.
以上所述僅是本發明的較佳實施例而已，並非對本發明做任何形式上的限制，雖然本發明已較佳實施例揭露如上，然而並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明技術方案的範圍內，當可利用上述揭示的技術內容作出些許更動或修飾為等同變化的等效實施例，但凡是未脫離本發明技術方案的內容，依據本發明的技術實質對以上實施例所作的任何簡單修改、等同變化與修飾，均仍屬於本發明技術方案的範圍內。The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the preferred embodiments of the present invention are disclosed above, the present invention is not limited thereto, and is generally Those skilled in the art can make some modifications or modifications to equivalent embodiments using the above-disclosed technical contents without departing from the technical scope of the present invention, but the present invention does not deviate from the technical solution of the present invention. Technical Substantials Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the technical solutions of the present invention.
10 第一基板 100第一單層電極層11 第一電極 111 電極對112 第三電極 113二維驅動電極114 二維接收電極 12 接合區20 第二基板 200第二單層電極層201 觸控位置 21 第二電極30 軟板40 基板 41 電極對411 三角形電極50 基板 51二維驅動電極52 二維接收電極10 first substrate 100 first single layer electrode layer 11 first electrode 111 electrode pair 112 third electrode 113 two-dimensional driving electrode 114 two-dimensional receiving electrode 12 bonding region 20 second substrate 200 second single-layer electrode layer 201 touch position 21 second electrode 30 soft board 40 substrate 41 electrode pair 411 triangular electrode 50 substrate 51 two-dimensional driving electrode 52 two-dimensional receiving electrode
圖1係本發明第一較佳實施例之結構示意圖。圖2係本發明第二較佳實施例之結構示意圖。圖3係本發明第二較佳實施例之局部結構放大示意圖。圖4係本發明較佳實施例之局部剖面圖。圖5係本發明較佳實施例製造方法之流程圖。圖6係現有技術之結構示意圖。圖7係另一現有技術之結構示意圖。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a first preferred embodiment of the present invention. Figure 2 is a schematic view showing the structure of a second preferred embodiment of the present invention. Figure 3 is an enlarged schematic view showing a partial structure of a second preferred embodiment of the present invention. Figure 4 is a partial cross-sectional view of a preferred embodiment of the present invention. Figure 5 is a flow diagram of a method of fabrication in accordance with a preferred embodiment of the present invention. Figure 6 is a schematic view of the structure of the prior art. Figure 7 is a schematic view of another prior art structure.
10 第一基板 11第一電極111 電極對 113二維驅動電極114 二維接收電極 12接合區201 觸控位置 21第二電極30 軟板10 first substrate 11 first electrode 111 electrode pair 113 two-dimensional driving electrode 114 two-dimensional receiving electrode 12 bonding area 201 touch position 21 second electrode 30 soft board
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| CN113672112A (en) * | 2020-05-15 | 2021-11-19 | 深圳市柔宇科技有限公司 | Touch device and touch point determination method thereof |
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| CN1318462C (en) * | 2002-11-11 | 2007-05-30 | 三菱丽阳株式会社 | Acrylic resin, resin boards, transparent electrode boards for touch panels, touch panels, and processes for production of them |
| TW201028779A (en) * | 2009-01-20 | 2010-08-01 | Hannstar Display Corp | Embedded type touch-control panel |
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| CN102214026B (en) * | 2010-04-06 | 2013-06-19 | 联咏科技股份有限公司 | Touch control sensing system, electronic touch control device and touch control sensing method |
| US8913021B2 (en) * | 2012-04-30 | 2014-12-16 | Apple Inc. | Capacitance touch near-field—far field switching |
| CN102830882B (en) * | 2012-09-04 | 2015-05-13 | 北京集创北方科技有限公司 | Touch detection circuit of capacitive touch screen |
| CN103294323A (en) * | 2013-06-13 | 2013-09-11 | 敦泰科技有限公司 | Method and device for touch detection and touch screen system |
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| CN1318462C (en) * | 2002-11-11 | 2007-05-30 | 三菱丽阳株式会社 | Acrylic resin, resin boards, transparent electrode boards for touch panels, touch panels, and processes for production of them |
| TW201028779A (en) * | 2009-01-20 | 2010-08-01 | Hannstar Display Corp | Embedded type touch-control panel |
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