TWI436256B - Mutual capacitive touchpad and modular mutual capacitive touchpad - Google Patents
Mutual capacitive touchpad and modular mutual capacitive touchpad Download PDFInfo
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Description
本發明係關於一種觸摸感應之輸入裝置,特別是關於用互電容作為感應器件之觸摸輸入裝置。The present invention relates to a touch-sensitive input device, and more particularly to a touch input device using a mutual capacitance as an inductive device.
觸控板是現在被廣泛應用的一種觸摸傳感輸入裝置。按照觸摸感應原理,現有技術觸控板包括電阻式觸控板、電容式觸控板、表面紅外觸控板等等。其中,電阻式觸控板因為其低成本、易實現、控制簡單等優點流行多年。近來,電容式觸控板以其透光率高、耐磨損、耐環境溫度變化、耐環境濕度變化、壽命長、可實現如多點觸摸的高級複雜功能而受到大眾的歡迎。The touchpad is a touch sensing input device that is now widely used. According to the principle of touch sensing, the prior art touch panel includes a resistive touch panel, a capacitive touch panel, a surface infrared touch panel, and the like. Among them, the resistive touch panel has been popular for many years because of its low cost, easy implementation, and simple control. Recently, capacitive touch panels have been popularly welcomed by the public for their high light transmittance, wear resistance, environmental temperature resistance, environmental humidity resistance, long life, and advanced complex functions such as multi-touch.
利用電容變化作為傳感原理由來已久,為使觸控板有效工作,需要一個透明的電容傳感陣列。當人體或者如手寫筆的專用觸摸裝置接近電容的感應電極時,會改變傳感控制電路檢測到電容值的大小,根據觸摸區域內電容值變化的分布,就可以判斷出人體或者專用觸摸裝置在觸摸區域內的觸摸情况。按照電容形成的方式,現有技術觸控板包括自電容式觸控板和互電容式觸控板。自電容式觸控板是利用傳感電極與交流或直流電憑電極形成的電容值變化作為觸摸傳感的信號;互電容式觸控板是利用兩個電極間形成的電容值變化作為觸摸傳感的信號,有時也把互電容稱為投射電容。The use of capacitance changes as a sensing principle has been around for a long time. In order for the touchpad to work effectively, a transparent capacitive sensing array is required. When the human body or a special touch device such as a stylus approaches the sensing electrode of the capacitor, the magnitude of the capacitance value detected by the sensing control circuit is changed, and according to the distribution of the capacitance value change in the touch region, it can be determined that the human body or the dedicated touch device is Touch the touch in the area. According to the manner in which the capacitor is formed, the prior art touch panel includes a self-capacitive touch panel and a mutual capacitive touch panel. The self-capacitive touch panel utilizes a change in capacitance value formed by the sensing electrode and the alternating current or direct current electrode as a touch sensing signal; the mutual capacitive touch panel utilizes a change in capacitance value formed between the two electrodes as a touch sensing The signal is sometimes referred to as a projected capacitor.
如第11圖所示,現有技術互電容式觸控板包括觸摸平面100' ,不在同一平面的驅動線210' 和傳感線310' ,以及夾在該驅動線210' 和傳感線310' 之間的介質平面910' 。如第11-1圖和第11-2圖所示,各該驅動線210' 互相平行,各該傳感線310' 互相平行,並且該驅動線210' 與傳感線310' 在空間垂直交叉。該驅動線210' 電連接激勵信號,該傳感線310' 電連接傳感控制電路,從而在驅動線210' 與傳感線310' 間形成互電容。在該驅動線210' 與傳感線310' 交叉之處形成的互電容C是傳感控制電路檢測的主要電容數據信號。如第11-3圖所示,該互電容C包括驅動線210' 與傳感線310' 底部之間的電容CB和驅動線210' 與傳感線310' 頂部之間的電容CT ,即C=CB +CT 。如第11-4圖所示,當手指150' 接觸觸摸平面100' 並在觸摸區域內時,該手指150' 相當於在傳感線310' 之上的一個電極,改變了驅動線210' 與傳感線310' 頂部之間電場,這種改變可以看作手指150' 將驅動線210' 到傳感線310' 頂部的電場線吸走,從而使CT 發生變化,導致該互電容C發生變化。該傳感控制電路檢測觸摸平面100' 整個觸摸區域內的互電容C變化情况,以確定觸摸區域內被觸摸點的位置和強度。透過合理設計傳感控制電路,該傳感控制電路能够同時檢測觸摸平面100' 上發生的多點觸摸之分布情况,實現傳感多點觸摸功能。所述CT 值的變化範圍在未發生觸摸時的互電容C中所占比例被稱為有效電容率。As shown in FIG. 11, the prior art mutual capacitive touch panel includes a touch plane 100 ' , a drive line 210 ' and a sense line 310 ' that are not in the same plane, and are sandwiched between the drive line 210 ' and the sense line 310 '. Between the media plane 910 ' . As shown in FIGS. 11-1 and 11-2, each of the driving lines 210 ' is parallel to each other, and the sensing lines 310 ' are parallel to each other, and the driving lines 210 ' and the sensing lines 310 ' vertically intersect in space. . The drive line 210 'is electrically connected to the excitation signal, the sensing line 310' is electrically connected to the sensor control circuit, so as to form a mutual capacitance between the drive line 210 'and the sensing line 310'. The mutual capacitance C formed at the intersection of the drive line 210 ' and the sense line 310 ' is the main capacitance data signal detected by the sensing control circuit. As shown in FIG. 11-3, the mutual capacitance C includes driving lines 210 'and the sensing lines 310' and the drive line capacitance CB between the bottom 210 'and the sensing line 310' between the top of the capacitance C T, i.e., C=C B +C T . As shown in Figures 11-4, when the finger 150 ' contacts the touch plane 100 ' and is within the touch area, the finger 150 ' corresponds to an electrode above the sensing line 310 ' , changing the drive line 210 ' with The electric field between the tops of the sensing line 310 ' can be seen as the finger 150 ' sucking away the electric field lines from the top of the driving line 210 ' to the sensing line 310 ' , thereby causing the C T to change, causing the mutual capacitance C to occur. Variety. The sensing control circuit detects a change in the mutual capacitance C within the entire touch area of the touch plane 100 ' to determine the position and intensity of the touched point within the touch area. Through reasonable design of the sensing control circuit, the sensing control circuit can simultaneously detect the distribution of multi-touch generated on the touch plane 100 ' , and realize the sensing multi-touch function. The proportion of the change in the C T value in the mutual capacitance C when no touch occurs is referred to as the effective permittivity.
如第11圖所示,當現有技術觸控板被觸摸時,該驅動 線210' 與傳感線310' 底部之間的電容CB不受觸摸影響,由於該傳感線310' 底部與驅動線210' 正對,使該電容CB 在互電容C中所占比例較大,從而令該有效電容率較低。現有技術互感式觸控板的有效電容率一般只能達到30%左右,造成該觸控板信噪比低,需要設計複雜的傳感控制電路以精確判斷人體或者專用觸摸裝置以針對該觸控板的觸摸情况,增加了該觸控板的設計和製造成本。As shown in FIG. 11, when the prior art touch panel is touched, the capacitance CB between the driving line 210 ' and the bottom of the sensing line 310 ' is not affected by the touch, since the sensing line 310 ' bottom and the driving line 210 ' is right, so that the capacitance C B accounts for a large proportion in the mutual capacitance C, so that the effective capacitance ratio is low. The effective permittivity of the prior art mutual-sensing touch panel can only reach about 30%, which results in low signal-to-noise ratio of the touch panel. It is necessary to design a complex sensing control circuit to accurately determine the human body or a dedicated touch device for the touch. The touch of the board increases the design and manufacturing cost of the touchpad.
本發明要解決的技術問題在於避免現有技術的不足之處而提出能大幅提高有效電容率的互電容式觸控板及組合式互電容觸控板。The technical problem to be solved by the present invention is to avoid mutual deficiencies of the prior art and to propose a mutual capacitive touch panel and a combined mutual capacitance touch panel capable of greatly increasing the effective permittivity.
本發明解決所述技術問題可以透過採用以下技術方案來實現:設計、製造一種互電容式觸控板,包括用透明絕緣介質製成的觸摸平面,被該觸摸平面覆蓋的驅動層和傳感層,以及夾在所述驅動層和傳感層之間用透明絕緣介質製成的電容介質平面,尤其是,該驅動層包括在同一平面內間隔分布的用透明導電材料製成的平板驅動電極;該傳感層包括在同一平面內間隔分布的用透明導電材料製成的平板傳感電極,各該傳感電極分布在傳感層中與驅動層中所述各驅動電極相互間空隙區域正對著的區域內,令該驅動電極和傳感電極一起填充該觸摸平面的觸摸區域;該驅動電極與觸控板外設的激勵信號模塊電連接,該傳感電極與 觸控板外設的傳感控制模塊電連接。The technical problem of the present invention can be achieved by adopting the following technical solutions: designing and manufacturing a mutual capacitive touch panel, including a touch plane made of transparent insulating medium, a driving layer and a sensing layer covered by the touch plane And a plane of the capacitive medium sandwiched between the driving layer and the sensing layer by a transparent insulating medium, in particular, the driving layer comprises a flat driving electrode made of a transparent conductive material spaced apart in the same plane; The sensing layer includes flat sensing electrodes made of transparent conductive materials spaced apart in the same plane, and the sensing electrodes are distributed in the sensing layer and the gap regions of the driving electrodes in the driving layer are opposite each other. The driving electrode and the sensing electrode together fill the touch area of the touch plane; the driving electrode is electrically connected to the excitation signal module of the touch panel peripheral, and the sensing electrode is The sensing control module of the touchpad peripheral is electrically connected.
為進一步提高有效電容率,該觸控板還包括屏蔽層;該屏蔽層設置於驅動層和傳感層中位於下方的一層的上方、下方或者嵌套在該層內;該屏蔽層包括用透明導電材料製成的平板屏蔽電極,以及屏蔽電極引出導線;各該屏蔽電極正對著該驅動層和傳感層中位於上方的一層中各電極所占區域;該屏蔽電極電懸空;或者,借助該屏蔽電極引出導線,所有屏蔽電極接地或者與觸控板外設的直流源電連接。In order to further increase the effective permittivity, the touch panel further includes a shielding layer; the shielding layer is disposed above or below the underlying layer of the driving layer and the sensing layer or nested within the layer; the shielding layer includes transparent a flat shield electrode made of a conductive material, and a shield electrode lead wire; each of the shield electrodes is opposite to a region occupied by each electrode in the upper layer of the driving layer and the sensing layer; the shield electrode is electrically suspended; or, by means of The shield electrode leads the wire, and all of the shield electrodes are grounded or electrically connected to the DC source of the touchpad peripheral.
為更進一步提高有效電容率,該觸控板還包括次電極層;該次電極層設置於驅動層和傳感層中位於上方的一層的上方、下方或者嵌套在該層內;該次電極層包括用透明導電材料製成的平板次電極,各該次電極正對著該驅動層和傳感層中位於下方的一層中各電極所占區域。In order to further increase the effective permittivity, the touch panel further includes a sub-electrode layer; the sub-electrode layer is disposed above or below the upper layer of the driving layer and the sensing layer or nested within the layer; the sub-electrode The layer includes planar sub-electrodes made of a transparent conductive material, each of which faces the area occupied by the electrodes in the lower layer of the drive layer and the sensing layer.
該互電容式觸控板還包括用透明導電材料製成的驅動電極連接線和傳感電極連接線,以及驅動電極引出導線和傳感電極引出導線。該驅動電極借助驅動電極連接線分組串聯在一起,各該驅動電極連接線在驅動層內的相互之間的位置關係包括共線和平行;該傳感電極借助傳感電極連接線分組串聯在一起,各該傳感電極連接線在傳感層內相互之間的位置關係包括共線和平行;該驅動電極連接線與傳感電極連接線互相垂直。各驅動電極組借助驅動電極引出線與觸控板外設的激勵信號模塊電連接;各傳感電極組借助傳感電極引出線與觸控板外設的傳感控制模塊電連 接。The mutual capacitive touch panel further includes a driving electrode connection line and a sensing electrode connection line made of a transparent conductive material, and a driving electrode lead-out wire and a sensing electrode lead-out wire. The driving electrodes are connected in series by means of driving electrode connection lines, and the positional relationship between the driving electrode connection lines in the driving layer includes collinear and parallel; the sensing electrodes are grouped together by means of sensing electrode connection lines. The positional relationship between the sensing electrode connection lines in the sensing layer includes collinear and parallel; the driving electrode connection line and the sensing electrode connection line are perpendicular to each other. Each driving electrode group is electrically connected to the excitation signal module of the touch panel peripheral by the driving electrode lead line; each sensing electrode group is electrically connected to the sensing control module of the touch panel peripheral by the sensing electrode lead line Pick up.
該驅動電極和傳感電極的形狀可以採用如下具體方案:各該驅動電極是大小相同的矩形電極;該傳感電極是大小相同的矩形電極;或者,各該驅動電極是大小相同的菱形電極;該傳感電極是大小相同的菱形電極;又或者,各該驅動電極是大小相同的六邊形電極;該傳感電極是大小相同的菱形電極。The shape of the driving electrode and the sensing electrode may be as follows: each of the driving electrodes is a rectangular electrode of the same size; the sensing electrodes are rectangular electrodes of the same size; or each of the driving electrodes is a diamond electrode of the same size; The sensing electrodes are diamond-shaped electrodes of the same size; or each of the driving electrodes is a hexagonal electrode of the same size; the sensing electrodes are diamond-shaped electrodes of the same size.
本發明在所述互電容式觸控板的基礎上還提出一種組合式互電容觸控板,可以透過採用以下技術方案來實現: 設計、製造一種組合式互電容觸控板,包括用透明絕緣介質製成的觸摸面板,尤其是,還包括被該觸摸面板覆蓋的緊密排布的至少兩個互電容觸摸單元,該互電容觸摸單元一起填充觸摸面板的觸摸區域。該互電容觸摸單元包括驅動層和傳感層,以及夾在所述驅動層和傳感層之間的用透明絕緣介質製成的電容介質平面。該驅動層包括同一平面內間隔分布的用透明導電材料製成的平板驅動電極;該傳感層包括在同一平面內用透明導電材料製成的平板傳感電極,各該傳感電極分布在傳感層中與驅動層中各該驅動電極相互間空隙區域正對著的區域內,令該驅動電極和傳感電極一起填充它們所在互電容觸摸單元的觸摸區域。該驅動電極與組合式互電容觸控板外設的對應於該驅動電極所在互電容觸摸單元的激勵信號模塊電連接,該傳感電極與組合式互電容觸控板外設的對應於該傳感電極所在的互電容觸摸單元的傳感控制模塊電連接。The invention also provides a combined mutual capacitance touch panel based on the mutual capacitive touch panel, which can be realized by adopting the following technical solutions: Designing and manufacturing a combined mutual capacitance touch panel, comprising a touch panel made of transparent insulating medium, and particularly comprising at least two mutual capacitance touch units closely arranged by the touch panel, the mutual capacitance touch The units together fill the touch area of the touch panel. The mutual capacitance touch unit includes a driving layer and a sensing layer, and a plane of a capacitive medium made of a transparent insulating medium sandwiched between the driving layer and the sensing layer. The driving layer comprises a flat driving electrode made of a transparent conductive material which is spaced apart in the same plane; the sensing layer comprises a flat sensing electrode made of a transparent conductive material in the same plane, and each of the sensing electrodes is distributed In the region of the sensing layer and the gap region between the driving electrodes in the driving layer, the driving electrode and the sensing electrode together fill the touch region of the mutual capacitance touch unit. The driving electrode is electrically connected to the excitation signal module of the mutual capacitance touch panel of the combined mutual capacitance touch panel peripheral, and the sensing electrode and the combined mutual capacitance touch panel peripheral correspond to the transmission The sensing control module of the mutual capacitance touch unit where the sensing electrodes are located is electrically connected.
所述組合式互電容觸控板還包括用透明導電材料製成的屏蔽層連接線,以及屏蔽層引出導線。該互電容觸摸單元還包括屏蔽層;該屏蔽層設置於驅動層和傳感層中位於下方的一層的上方、下方或者嵌套在該層內;該屏蔽層包括用透明導電材料製成的平板屏蔽電極,以及屏蔽電極引出導線;各該屏蔽電極正對著該驅動層和傳感層中位於上方的一層中各電極所占區域。該屏蔽電極電懸空;或者,借助該屏蔽層連接線將該互電容觸摸單元各自的屏蔽層電連接在一起,並透過屏蔽層引出導線接地或者與組合式互電容觸控板外設的直流源電連接;又或者,借助屏蔽電極引出導線,該互電容觸摸單元各自的屏蔽電極接地或者與組合式互電容觸控板外設的直流源電連接。The combined mutual capacitance touch panel further includes a shield connection line made of a transparent conductive material, and a shield layer lead-out wire. The mutual capacitance touch unit further includes a shielding layer disposed above or below the lower layer of the driving layer and the sensing layer or nested within the layer; the shielding layer comprises a flat plate made of a transparent conductive material The shielding electrode and the shielding electrode lead-out wire; each of the shielding electrodes is opposite to a region occupied by each electrode in the upper layer of the driving layer and the sensing layer. The shielding electrode is electrically suspended; or the shielding layers of the mutual capacitance touch unit are electrically connected together by the shielding layer connection line, and the lead wire is grounded through the shielding layer or the DC source of the peripheral component of the combined mutual capacitance touch panel Electrically connected; or alternatively, the lead wires are led out by the shield electrodes, and the respective shield electrodes of the mutual capacitance touch unit are grounded or electrically connected to a DC source of the combined mutual capacitance touch panel peripheral.
所述互電容觸摸單元還包括次電極層;該次電極層設置於驅動層和傳感層中位於上方的一層的上方、下方或者嵌套在該層內;該次電極層包括用透明導電材料製成的平板次電極,各該次電極正對著該驅動層和傳感層中位於下方的一層中各電極所占區域。The mutual capacitance touch unit further includes a sub-electrode layer disposed above or below the upper layer of the driving layer and the sensing layer or nested within the layer; the sub-electrode layer includes a transparent conductive material The prepared plate sub-electrodes are each facing the region occupied by the electrodes in the lower layer of the driving layer and the sensing layer.
同現有技術相比較,本發明“互電容式觸控板及組合式互電容觸控板”的技術效果在於:該驅動電極與傳感電極空間位置不是正對關係,該驅動電極與傳感電極底部之間形成的電容CB 大幅降低,提高了該驅動電極與傳感電極頂部之間形成的電容CT 在互電容C中所占比例,從而提高了由觸摸傳感引起該CT 的變化在未觸摸時互電容C中的比例,有效增加了該互電容式觸 控板的有效電容率;該屏蔽電極和次電極可以改善驅動電極與傳感電極之間的電場,使互電容C中的電容CB 更小,電容CT 更大,更進一步提高該互電容式觸控板的有效電容率;所述次電極還可以使該互電容式觸控板的透光率趨於一致,提高該互電容觸控板的性能;另外,該組合式互電容觸控板提出了一種大面積觸控板的結構,避免因過多的連接在一起的驅動電極或者傳感電極的電阻過大而造成的互電容通路的帶寬降低問題。Compared with the prior art, the technical effect of the "mutual capacitance touch panel and the combined mutual capacitance touch panel" of the present invention is that the spatial position of the driving electrode and the sensing electrode is not in a positive relationship, and the driving electrode and the sensing electrode are The capacitance C B formed between the bottoms is greatly reduced, and the ratio of the capacitance C T formed between the driving electrode and the top of the sensing electrode in the mutual capacitance C is increased, thereby improving the change of the C T caused by the touch sensing. The ratio of the mutual capacitance C in the untouched manner effectively increases the effective permittivity of the mutual capacitive touch panel; the shielding electrode and the secondary electrode can improve the electric field between the driving electrode and the sensing electrode, so that the mutual capacitance C The capacitance C B is smaller, the capacitance C T is larger, and the effective permittivity of the mutual capacitive touch panel is further improved; the secondary electrode can also make the transmittance of the mutual capacitive touch panel tend to be uniform. The performance of the mutual-capacitive touch panel is improved. In addition, the combined mutual-capacitance touch panel proposes a structure of a large-area touch panel, which avoids excessive resistance caused by excessively connected driving electrodes or sensing electrodes. Bandwidth reduced mutual capacitance path problem.
以下結合附圖所示各實施例作進一步詳述。The embodiments are further described in detail below with reference to the embodiments shown in the drawings.
本發明係關於一種互電容式觸控板,用於罩蓋在圖形或者圖像顯示裝置的顯示屏幕表面,透過外設的控制裝置對圖形或者圖像顯示裝置顯示的內容進行控制。如第1圖至第7圖所示,該互電容式觸控板包括用透明絕緣介質製成的觸摸平面100,被該觸摸平面100覆蓋的驅動層200和傳感層300,以及夾在所述驅動層200和傳感層300之間的用透明絕緣介質製成的電容介質平面910。另外,還可以設置用透明絕緣材料製成的保護平面120,該驅動層200、傳感層300和電容介質平面910被設置在觸摸平面100和保護平面120之間,該保護平面120與圖形或者圖像顯示裝置的顯示屏接觸。The present invention relates to a mutual capacitive touch panel for covering a surface of a display screen of a graphic or image display device, and controlling the content displayed by the graphic or image display device through a peripheral control device. As shown in FIGS. 1 to 7, the mutual capacitive touch panel includes a touch plane 100 made of a transparent insulating medium, a driving layer 200 and a sensing layer 300 covered by the touch plane 100, and a clip-on layer. A capacitive dielectric plane 910 made of a transparent insulating medium between the driving layer 200 and the sensing layer 300. In addition, a protective plane 120 made of a transparent insulating material may be provided, the driving layer 200, the sensing layer 300 and the capacitive dielectric plane 910 being disposed between the touch plane 100 and the protective plane 120, the protective plane 120 and the graphic or The display screen of the image display device is in contact.
本發明該驅動層200包括在同一平面內間隔分布的用 透明導電材料製成的平板驅動電極210;該傳感層300包括在同一平面內間隔分布的用透明導電材料製成的平板傳感電極310,該各傳感電極310分布在傳感層300中與驅動層200中該各驅動電極210相互間空隙區域正對著的區域內,令該驅動電極210和傳感電極310一起填充該觸摸平面100的觸摸區域110。該驅動電極210與觸控板外設的激勵信號模塊600電連接,該傳感電極310與觸控板外設的傳感控制模塊700電連接。The driving layer 200 of the present invention includes the same distribution in the same plane. a flat driving electrode 210 made of a transparent conductive material; the sensing layer 300 includes flat sensing electrodes 310 made of a transparent conductive material spaced apart in the same plane, and the sensing electrodes 310 are distributed in the sensing layer 300. In a region facing the gap region between the driving electrodes 210 in the driving layer 200, the driving electrode 210 and the sensing electrode 310 are filled together to fill the touch region 110 of the touch plane 100. The driving electrode 210 is electrically connected to the excitation signal module 600 of the touch panel peripheral, and the sensing electrode 310 is electrically connected to the sensing control module 700 of the touch panel peripheral.
本發明互電容式觸控板的驅動電極210與傳感電極310不會出現正對的情况,因此本發明在該驅動電極210與傳感電極310底部之間形成的電容CB 比現有技術該驅動線210' 與傳感線310' 底部之間形成的電容CB 小,從而本發明中該電容CB 在互電容C中所占比例小,提高了本發明互電容C的有效電容率。The driving electrode 210 and the sensing electrode 310 of the mutual capacitive touch panel of the present invention do not face each other. Therefore, the capacitance C B formed between the driving electrode 210 and the bottom of the sensing electrode 310 of the present invention is higher than that of the prior art. The capacitance C B formed between the driving line 210 ' and the bottom of the sensing line 310 ' is small, so that the capacitance C B in the present invention has a small proportion in the mutual capacitance C, which improves the effective permittivity of the mutual capacitance C of the present invention.
本發明該互電容式觸控板的驅動電極210和傳感電極310的形狀和它們在各自相應的驅動層200和傳感層300內的連接分布情况可以多種多樣,本發明透過第一實施例至第七實施例提出了幾種適於應用和實踐的形狀和連接分布情况。The shape of the driving electrode 210 and the sensing electrode 310 of the mutual capacitive touch panel of the present invention and their connection distribution in the respective driving layers 200 and the sensing layer 300 can be various, and the present invention is applicable to the first embodiment. To the seventh embodiment, several shapes and connection profiles suitable for application and practice have been proposed.
本發明各實施例的互電容式觸控板都採用以下的技術方案:該互電容式觸控板還包括用透明導電材料製成的驅動電極連接線220和傳感電極連接線320,以及驅動電極引出導線230和傳感電極引出導線330;該驅動電極210借助驅動電極連接線220分組串聯在一起,各該驅動電極 連接線220在驅動層200內的相互之間的位置關係包括共線和平行;該傳感電極310借助傳感電極連接線320分組串聯在一起,各該傳感電極連接線320在傳感層300內相互之間的位置關係包括共線和平行;該驅動電極連接線220與傳感電極連接線320互相垂直;各驅動電極組240借助驅動電極引出線230與觸控板外設的激勵信號模塊600電連接;各傳感電極組340借助傳感電極引出線330與觸控板外設的傳感控制模塊700電連接。如第1圖至第7圖所示,本發明各實施例驅動電極連接線220和傳感電極連接線320各自的位置關係既有共線也有平行,即該驅動電極組240中的各驅動電極210的幾何中心與各驅動電極連接線220在同一直線上,該驅動電極組240各自的驅動電極連接線220所在的直線互相平行;該傳感電極組340中的各傳感電極310的幾何中心和各傳感電極連接線320在同一直線上,該傳感電極組340各自的傳感電極連接線320所在的直線互相平行;也就是,對於驅動層200內的驅動電極連接線220和在傳感層300內的傳感電極連接線320,在電極組內的電極連接線的位置關係是共線,電極組之間的電極連接線的位置關係是平行的。The mutual capacitive touch panel of each embodiment of the present invention adopts the following technical solutions: the mutual capacitive touch panel further includes a driving electrode connection line 220 and a sensing electrode connection line 320 made of a transparent conductive material, and driving The electrode lead wire 230 and the sensing electrode lead wire 330; the driving electrode 210 is grouped and connected in series by the driving electrode connecting line 220, and each of the driving electrodes The positional relationship between the connecting lines 220 in the driving layer 200 includes collinear and parallel; the sensing electrodes 310 are grouped together in series by the sensing electrode connecting lines 320, and the sensing electrode connecting lines 320 are at the sensing layer. The positional relationship between each other includes collinearity and parallelism; the driving electrode connection line 220 and the sensing electrode connection line 320 are perpendicular to each other; and the driving electrode group 240 is excited by the driving electrode lead-out line 230 and the touch panel peripheral. The module 600 is electrically connected; each sensing electrode group 340 is electrically connected to the sensing control module 700 of the touch panel peripheral via the sensing electrode lead line 330. As shown in FIG. 1 to FIG. 7 , the positional relationship between the driving electrode connection line 220 and the sensing electrode connection line 320 of the embodiments of the present invention is both collinear and parallel, that is, each driving electrode in the driving electrode group 240. The geometric center of 210 is on the same line as each of the driving electrode connection lines 220, and the respective lines of the driving electrode connection lines 220 of the driving electrode group 240 are parallel to each other; the geometric center of each sensing electrode 310 in the sensing electrode group 340 And the sensing electrode connection lines 320 are on the same straight line, and the respective lines of the sensing electrode connection lines 320 of the sensing electrode group 340 are parallel to each other; that is, for the driving electrode connection lines 220 in the driving layer 200 and in the transmission In the sensing electrode connection line 320 in the sensing layer 300, the positional relationship of the electrode connection lines in the electrode group is collinear, and the positional relationship of the electrode connection lines between the electrode groups is parallel.
本發明第一實施例,如第1圖所示,各該驅動電極210是矩形驅動電極211,在本實施例中有25個矩形驅動電極211;各該傳感電極310是矩形傳感電極311,在本實施例中有36個矩形傳感電極311。In the first embodiment of the present invention, as shown in FIG. 1, each of the driving electrodes 210 is a rectangular driving electrode 211. In this embodiment, there are 25 rectangular driving electrodes 211; each of the sensing electrodes 310 is a rectangular sensing electrode 311. In the present embodiment, there are 36 rectangular sensing electrodes 311.
如第1-1圖所示,該矩形傳感電極311透過傳感電極 連接線320被分組串聯成6組傳感電極組340,每組傳感電極組340中的各矩形傳感電極311的幾何中心和各矩形傳感電極310連接線320在同一直線上,而且各傳感電極組340內的傳感電極連接線320所在的直線互相平行。各傳感電極組340借助傳感電極引出線330與觸控板外設的傳感控制模塊700電連接。As shown in FIG. 1-1, the rectangular sensing electrode 311 passes through the sensing electrode. The connecting lines 320 are grouped into a group of six sensing electrode groups 340, and the geometric centers of the rectangular sensing electrodes 311 in each of the sensing electrode groups 340 and the rectangular sensing electrodes 310 connecting lines 320 are on the same line, and each The lines in which the sensing electrode connection lines 320 in the sensing electrode group 340 are located are parallel to each other. Each sensing electrode group 340 is electrically connected to the sensing control module 700 of the touch panel peripheral via the sensing electrode lead line 330.
如第1-2圖所示,該矩形驅動電極211透過驅動電極連接線220被分組串聯成5組驅動電極組240,每組驅動電極組240中的各矩形驅動電極211的幾何中心和各驅動電極連接線220在同一直線上,而且各驅動電極組240內的驅動電極連接線220所在的直線互相平行。各驅動電極組240借助驅動電極引出線230與觸控板外設的激勵信號模塊600電連接。As shown in FIG. 1-2, the rectangular driving electrodes 211 are grouped in series through the driving electrode connection lines 220 into five groups of driving electrode groups 240, and the geometric centers and driving directions of the rectangular driving electrodes 211 in each group of driving electrode groups 240 are shown. The electrode connection lines 220 are on the same straight line, and the straight lines in which the drive electrode connection lines 220 in the respective drive electrode groups 240 are located are parallel to each other. Each of the driving electrode groups 240 is electrically connected to the excitation signal module 600 of the touch panel peripheral via the driving electrode lead wires 230.
如第1-3圖所示,各該矩形傳感電極311分布在傳感層300中與驅動層200中各該矩形驅動電極211相互間空隙區域正對著的區域內,令該矩形驅動電極211和傳感電極311一起填充該觸控板的觸摸區域110。該驅動電極連接線220與傳感電極連接線320互相垂直。As shown in FIG. 1-3, each of the rectangular sensing electrodes 311 is distributed in a region of the sensing layer 300 opposite to the gap region between the rectangular driving electrodes 211 of the driving layer 200, and the rectangular driving electrode is arranged. The 211 and the sensing electrode 311 together fill the touch area 110 of the touch panel. The driving electrode connection line 220 and the sensing electrode connection line 320 are perpendicular to each other.
如第1-3圖和第1-4圖所示,在整個觸摸區域110內該矩形傳感電極311所占區域與矩形驅動電極211所占區域互補,使矩形傳感電極311與矩形驅動電極211不會出現正對的位置關係。As shown in FIGS. 1-3 and 1-4, the area occupied by the rectangular sensing electrode 311 is complementary to the area occupied by the rectangular driving electrode 211 in the entire touch region 110, so that the rectangular sensing electrode 311 and the rectangular driving electrode 211 will not have a correct positional relationship.
對於第1-4圖所示的O1 點,當沒有對O1 點觸摸時,該O1 點的電場分布情况如第1-5圖所示;當手指150對 O1 點觸摸時,該O1 點的電場分布情况如第1-6圖所示。由於矩形傳感電極311底部沒有正對矩形驅動電極211,所以矩形傳感電極311底部與矩形驅動電極211之間形成的電容CB 的電容值相對現有技術有大幅减小,即該矩形傳感電極311底部與矩形驅動電極211之間形成的電容CB 在O1 點的互電容C中所占比例大幅減小,從而有效提高了互電容式觸控板的互電容C的有效電容率。For shown in FIG 1-4 O 1:00, 1:00 when no touch to the O, the electric field distribution in the case of this one point O as shown in FIG. 1-5; and when the finger 150 touches one point O on the The electric field distribution at point O 1 is shown in Figures 1-6. Since the bottom of the rectangular sensing electrode 311 does not have the rectangular driving electrode 211, the capacitance of the capacitor C B formed between the bottom of the rectangular sensing electrode 311 and the rectangular driving electrode 211 is greatly reduced compared with the prior art, that is, the rectangular sensing The capacitance C B formed between the bottom of the electrode 311 and the rectangular driving electrode 211 is greatly reduced in the mutual capacitance C of the O 1 point, thereby effectively increasing the effective permittivity of the mutual capacitance C of the mutual capacitive touch panel.
本發明第二實施例,如第2圖所示,該驅動層200和傳感層300與第一實施例完全相同,只是加入了屏蔽層400。該屏蔽層400設置於驅動層200和傳感層300中位於下方的一層的上方、下方或者嵌套在該層內;該屏蔽層400包括用透明導電材料製成的平板屏蔽電極410,各該屏蔽電極410正對著該驅動層200和傳感層300中位於上方的一層中各電極所占區域。In the second embodiment of the present invention, as shown in FIG. 2, the driving layer 200 and the sensing layer 300 are identical to the first embodiment except that the shielding layer 400 is added. The shielding layer 400 is disposed above or below the underlying layer of the driving layer 200 and the sensing layer 300 or nested within the layer; the shielding layer 400 includes a flat shielding electrode 410 made of a transparent conductive material, each of which The shield electrode 410 faces the area occupied by the electrodes in the upper layer of the driving layer 200 and the sensing layer 300.
在本實施例中,該傳感層300位於驅動層200的上方,因此,如第2-1圖所示,各該屏蔽電極410分布在屏蔽層400中正對著該傳感層300中各傳感電極310所占的區域,並且被連接成6個屏蔽電極410,換個角度說,該屏蔽電極410分布在屏蔽層400中與驅動層200的各驅動電極210相互之間的空隙區域正對著的區域。In this embodiment, the sensing layer 300 is located above the driving layer 200. Therefore, as shown in FIG. 2-1, each of the shielding electrodes 410 is distributed in the shielding layer 400 and directly opposite to the sensing layer 300. The area occupied by the sensing electrode 310 is connected to the six shielding electrodes 410. In other words, the shielding electrode 410 is distributed in the shielding layer 400 and the gap region between the driving electrodes 210 of the driving layer 200 is opposite to each other. Area.
如第2一2圖所示,該屏蔽電極410所占區域與矩形驅動電極211互補,本實施例中,將屏蔽層400與驅動層200嵌套在一起,如第2-3圖所示,即屏蔽層400與驅動層200在同一層中。As shown in FIG. 2-2, the area occupied by the shield electrode 410 is complementary to the rectangular driving electrode 211. In this embodiment, the shielding layer 400 and the driving layer 200 are nested together, as shown in FIG. 2-3. That is, the shield layer 400 is in the same layer as the drive layer 200.
對於第2-3圖所示的O2 點,當沒有對O2 點觸摸時,該O2 點的電場分布情况如第2-4圖所示;當手指150對O2 點觸摸時,該O2 點的電場分布情况如第2-5圖所示。由第2-4圖和第2-5圖可見,該屏蔽電極410的作用在於改變矩形傳感電極311底部的電場,使矩形傳感電極311底部與矩形驅動電極211之間形成的電容CB 進一步减小,這可以理解為,屏蔽電極410將矩形驅動電極211與矩形傳感電極311底部電場中的部分電場線吸走。For the O 2 point shown in Figure 2-3, when there is no O 2 point touch, the electric field distribution of the O 2 point is as shown in Figure 2-4; when the finger 150 touches the O 2 point, the The electric field distribution at point O 2 is shown in Figure 2-5. As can be seen from FIGS. 2-4 and 2-5, the shield electrode 410 functions to change the electric field at the bottom of the rectangular sensing electrode 311 so that the capacitance C B formed between the bottom of the rectangular sensing electrode 311 and the rectangular driving electrode 211 Further, it can be understood that the shield electrode 410 sucks away a part of the electric field lines in the electric field at the bottom of the rectangular drive electrode 211 and the rectangular sensing electrode 311.
該屏蔽電極410可以是電懸空的,即不與互電容式觸控板外設的任何激勵信號、交流地和直流源電連接,也可以採用如下的方案:如第3圖所示,該屏蔽層400還包括屏蔽電極引出導線430,借助該屏蔽電極引出導線430,所有屏蔽電極410接地,或者與觸控板外設的直流源800電連接。另外,為减少該屏蔽電極引出導線430的數量,一般用一條或者兩條屏蔽電極引出導線430把所有的屏蔽電極410電連接至直流源800,或者直接接交流地;同時儘量避免屏蔽電極引出導線430與驅動電極引出導線230和傳感電極引出導線330交叉。對於本發明第二實施例,第3圖顯示出了四種情况以體現四種屏蔽電極引出線430的引出情况,其中,第3-1圖和第3-2圖示出用兩條屏蔽電極引出導線430將所有屏蔽電極410電連接交流地或者直流源800;第3-3圖和第3-4圖顯示出用一條屏蔽電極引出導線430將所有屏蔽電極410電連接交流地。對於本發明其它具有屏蔽層400的實施例,該屏蔽電極410接 地或者與觸控板外設的直流源800電連接方式可以採用第4圖所示的任何一種,也可以採用其它一切使該屏蔽電極引出線430與驅動電極引出線230在空間互不相交的其它方式。The shielding electrode 410 can be electrically suspended, that is, not electrically connected to any excitation signal, AC ground, and DC source of the mutual capacitive touch panel peripheral. The following scheme can also be adopted: as shown in FIG. 3, the shielding Layer 400 also includes a shield electrode lead wire 430 with which lead wire 430 is drawn, all of which are grounded or electrically coupled to a DC source 800 of the touchpad peripheral. In addition, in order to reduce the number of the shield electrode lead wires 430, one or two shield electrode lead wires 430 are generally used to electrically connect all the shield electrodes 410 to the DC source 800, or directly to the AC ground; and at the same time, the shield electrode lead wires are avoided as much as possible. 430 intersects the drive electrode lead wire 230 and the sense electrode lead wire 330. For the second embodiment of the present invention, FIG. 3 shows four cases to show the extraction of the four shield electrode lead lines 430, wherein the 3-1 and 3-2 illustrate the use of two shield electrodes. The lead wires 430 electrically connect all of the shield electrodes 410 to the AC ground or DC source 800; Figures 3-3 and 3-4 show that all of the shield electrodes 410 are electrically connected to the AC ground by a shield electrode lead wire 430. For other embodiments of the present invention having the shielding layer 400, the shielding electrode 410 is connected The ground connection or the DC source 800 of the touch panel peripheral can be electrically connected to any one of the four types shown in FIG. 4, or any other thing that makes the shield electrode lead-out line 430 and the driving electrode lead-out line 230 do not intersect each other in space. Other ways.
本發明第三實施例,如第4圖所示,該驅動層200和傳感層300與第一實施例完全相同,只是加入了次電極層500。該次電極層500設置於驅動層200和傳感層300中位於上方的一層的上方、下方或者嵌套在該層內;該次電極層500包括用透明導電材料製成的平板次電極510,各該次電極510正對著該驅動層200和傳感層300中位於下方的一層中各電極所占區域。In the third embodiment of the present invention, as shown in FIG. 4, the driving layer 200 and the sensing layer 300 are identical to the first embodiment except that the sub-electrode layer 500 is added. The sub-electrode layer 500 is disposed above or below the upper layer of the driving layer 200 and the sensing layer 300 or nested within the layer; the sub-electrode layer 500 includes a planar sub-electrode 510 made of a transparent conductive material. Each of the sub-electrodes 510 is opposite to the area occupied by each electrode in the lower layer of the driving layer 200 and the sensing layer 300.
本實施例該驅動層200位於傳感層300的下方,因此,如第4-1圖所示,各該次電極510正對著該驅動層200中各電極所占區域,換個角度說,該次電極510分布在次電極層500中與該驅動層200各驅動電極210所占區域正對著的區域內。在次電極層500中正對著驅動層200的某個驅動電極210的區域內,可以分布多個填滿該區域次電極510,也可以僅用一個次電極510;本實施例中,在次電極層500中每個與驅動電極210正對著的區域內就緊密排布了16個面積較小的次電極510,這種結構可以使電場分布更加均勻,有利於觸摸傳感。各該次電極510互不連接,而且不像普通的電極與任何信號激勵源、直流源或者地線電連接,處於電懸空狀態,因此被稱為次電極或者虛擬電池(Dummy Cell)。In this embodiment, the driving layer 200 is located below the sensing layer 300. Therefore, as shown in FIG. 4-1, each of the sub-electrodes 510 is opposite to the area occupied by each electrode in the driving layer 200. The sub-electrodes 510 are distributed in a region of the sub-electrode layer 500 that is directly opposite the region occupied by the driving electrodes 210 of the driving layer 200. In the region of the sub-electrode layer 500 facing a certain driving electrode 210 of the driving layer 200, a plurality of sub-electrodes 510 may be distributed to fill the region, or only one sub-electrode 510 may be used; in this embodiment, at the sub-electrode Sixteen sub-electrodes 510 having a small area are closely arranged in each of the layers 500 facing the driving electrodes 210. This structure can make the electric field distribution more uniform and facilitate touch sensing. Each of the sub-electrodes 510 are not connected to each other, and are not electrically connected to any signal excitation source, DC source or ground like ordinary electrodes, and are in an electrically floating state, and are therefore referred to as sub-electrodes or dummy cells.
如第4-2圖所示,該次電極410所占區域與矩形傳感電極311互補,本實施例中,將次電極層500與傳感層300嵌套在一起,如圖4-3所示,即次電極層500與傳感層300在同一層中。As shown in FIG. 4-2, the area occupied by the sub-electrode 410 is complementary to the rectangular sensing electrode 311. In this embodiment, the sub-electrode layer 500 and the sensing layer 300 are nested together, as shown in FIG. 4-3. It is shown that the secondary electrode layer 500 is in the same layer as the sensing layer 300.
對於第4-3圖所示的O3 點,當沒有對O3 點觸摸時,該O3 點的電場分布情况如第4-4圖所示;當手指150對O3 點觸摸時,該O3 點的電場分布情况如第5-5圖所示。由第4-4圖和第4-5圖可見,該次電極510的作用在於改變矩形傳感電極311頂部的電場,使矩形傳感電極311頂部與矩形驅動電極211之間形成的電容CT 進一步增大,以增加CT的變化範圍。這可以理解為,該次電極510增加矩形驅動電極211與矩形傳感電極311頂部電場中的電場線;另外,該次電極510的作用還在於使觸控板的透光率趨於一致。For the O 3 point shown in Figure 4-3, when there is no O 3 point touch, the electric field distribution of the O 3 point is as shown in Figure 4-4; when the finger 150 touches the O 3 point, The electric field distribution at point O 3 is shown in Figure 5-5. As can be seen from FIGS. 4-4 and 4-5, the secondary electrode 510 functions to change the electric field at the top of the rectangular sensing electrode 311 so that the capacitance C T formed between the top of the rectangular sensing electrode 311 and the rectangular driving electrode 211 Further increase to increase the range of variation of CT. It can be understood that the secondary electrode 510 increases the electric field lines in the electric field at the top of the rectangular driving electrode 211 and the rectangular sensing electrode 311; in addition, the secondary electrode 510 also functions to make the transmittance of the touch panel tend to be uniform.
本發明第四實施例,如第5圖所示,該驅動層200和傳感層300與第一實施例完全相同,只是加入了與第二實施例相同的屏蔽層400和與第三實施例相同的次電極層500。According to a fourth embodiment of the present invention, as shown in FIG. 5, the driving layer 200 and the sensing layer 300 are identical to the first embodiment except that the same shielding layer 400 as that of the second embodiment is added and the third embodiment is added. The same secondary electrode layer 500.
如第5-1圖所示,該屏蔽層400與驅動層200嵌套在一起,該次電極層500與傳感層300嵌套在一起。As shown in FIG. 5-1, the shield layer 400 is nested with the driving layer 200, and the sub-electrode layer 500 is nested with the sensing layer 300.
對於第5-1圖所示的O4 點,當沒有對O4 點觸摸時,該O4 點的電場分布情况如第5-2圖所示;當手指150對O4 點觸摸時,該O4 點的電場分布情况如第5-3圖所示。由第6-2圖和第5-3圖可見,在該屏蔽電極410和次電 極510的共同作用下,使矩形傳感電極311底部與矩形驅動電極211之間形成的電容CB 進一步减小,使矩形傳感電極311頂部與矩形驅動電極211之間形成的電容CT 進一步增大,從而進一步提高互電容C的有效電容率。For the O 4 point shown in Figure 5-1, when there is no O 4 point touch, the electric field distribution of the O 4 point is as shown in Figure 5-2; when the finger 150 touches the O 4 point, The electric field distribution at point 4 is shown in Figure 5-3. It can be seen from FIGS. 6-2 and 5-3 that, under the joint action of the shield electrode 410 and the sub-electrode 510, the capacitance C B formed between the bottom of the rectangular sensing electrode 311 and the rectangular driving electrode 211 is further reduced. The capacitance C T formed between the top of the rectangular sensing electrode 311 and the rectangular driving electrode 211 is further increased, thereby further increasing the effective permittivity of the mutual capacitance C.
本發明第五實施例,如第6圖所示,該互電容式觸控板包括驅動層200、傳感層300、屏蔽層400和次電極層500。According to a fifth embodiment of the present invention, as shown in FIG. 6, the mutual capacitive touch panel includes a driving layer 200, a sensing layer 300, a shielding layer 400, and a sub-electrode layer 500.
如第6-1圖所示,該驅動層200包括驅動電極210,而且各驅動電極210是菱形驅動電極212,本實施例設置了25個菱形驅動電極212。該菱形驅動電極212透過驅動電極連接線220被分組串聯成5組驅動電極組240,每組驅動電極組240中的各菱形驅動電極212的幾何中心和各驅動電極連接線220在同一直線上,而且各驅動電極組240內的驅動電極連接線220所在的直線互相平行。各驅動電極組240與觸控板外設的激勵信號模塊600電連接的情况如同第一實施例。As shown in FIG. 6-1, the driving layer 200 includes the driving electrodes 210, and each of the driving electrodes 210 is a diamond driving electrode 212. In this embodiment, 25 diamond driving electrodes 212 are disposed. The diamond drive electrodes 212 are grouped into five groups of drive electrode groups 240 through the drive electrode connection lines 220. The geometric centers of the diamond drive electrodes 212 in each set of drive electrode groups 240 and the drive electrode connection lines 220 are on the same line. Further, the straight lines in which the driving electrode connection lines 220 in the respective driving electrode groups 240 are located are parallel to each other. The case where each of the driving electrode groups 240 is electrically connected to the excitation signal module 600 of the touch panel peripheral is as in the first embodiment.
如第6一2圖所示,該驅動層300包括傳感電極310,而且各傳感電極310是菱形傳感電極312,本實施例設置了36個菱形傳感電極312。該菱形傳感電極312透過傳感電極連接線320被分組串聯成6組傳感電極組340,每組傳感電極組340中的各菱形傳感電極312的幾何中心和各菱形傳感電極連接線320在同一直線上,而且各傳感電極組340內的傳感電極連接線320所在的直線互相平行。各傳感電極組340與觸控板外設的傳感控制模塊700電連接 情况如同第一實施例。As shown in FIG. 6-2, the driving layer 300 includes sensing electrodes 310, and each sensing electrode 310 is a diamond sensing electrode 312. In this embodiment, 36 diamond sensing electrodes 312 are disposed. The diamond sensing electrodes 312 are grouped into six groups of sensing electrode groups 340 through the sensing electrode connection lines 320. The geometric centers of the diamond sensing electrodes 312 in each group of sensing electrode groups 340 are connected to the respective diamond sensing electrodes. The lines 320 are on the same line, and the lines in which the sensing electrode connection lines 320 in the respective sensing electrode groups 340 are located are parallel to each other. Each sensing electrode group 340 is electrically connected to the sensing control module 700 of the touch panel peripheral The situation is like the first embodiment.
各該菱形傳感電極312分布在傳感層300中與驅動層200中各該菱形驅動電極212之間形成的間隙區域正對的區域內,令該菱形驅動電極212和菱形傳感電極312一起填充該觸控板的觸摸區域110。該驅動電極連接線220與傳感電極連接線320互相垂直。Each of the diamond-shaped sensing electrodes 312 is distributed in a region of the sensing layer 300 opposite to the gap region formed between each of the diamond-shaped driving electrodes 212 in the driving layer 200, and the diamond-shaped driving electrode 212 and the diamond-shaped sensing electrode 312 are disposed together. The touch area 110 of the touch panel is filled. The driving electrode connection line 220 and the sensing electrode connection line 320 are perpendicular to each other.
所述第五實施例中,該驅動層200位於傳感層300的上方,如第6-3圖所示,該屏蔽層400包括用透明導電材料製成的平板屏蔽電極410,該各屏蔽電極410正對著該驅動層200中各菱形驅動電極212所占區域,即該屏蔽電極410分布在屏蔽層400中與該傳感層300中各傳感電極310相互之間的空隙區域正對著的區域內。本實施例該屏蔽層400的作用與第二實施例和第四實施例基本相同。In the fifth embodiment, the driving layer 200 is located above the sensing layer 300. As shown in FIG. 6-3, the shielding layer 400 includes a flat shielding electrode 410 made of a transparent conductive material. 410 is opposite to the area occupied by each of the diamond driving electrodes 212 in the driving layer 200, that is, the shielding electrode 410 is distributed in the shielding layer 400 and the gap region between the sensing electrodes 310 in the sensing layer 300 is opposite to each other. Within the area. The function of the shield layer 400 of this embodiment is substantially the same as that of the second embodiment and the fourth embodiment.
所述第五實施例中,該驅動層200位於傳感層300的上方,如第6-4圖所示,該次電極層500包括間隔分布的用透明導電材料製成的平板次電極510,本實施例該次電極510呈菱形,各該次電極510正對著傳感層300中各菱形傳感電極312所占區域,即各該次電極510分布在次電極層500中與該驅動層200各驅動電極210相互之間的空隙區域正對著的區域內。在次電極層500中正對著傳感層300的某個傳感電極310的區域內,僅用一個次電極510。本實施例所述次電極層500的作用與第三實施例和第四實施例基本相同。In the fifth embodiment, the driving layer 200 is located above the sensing layer 300. As shown in FIG. 6-4, the sub-electrode layer 500 includes spaced-apart planar sub-electrodes 510 made of a transparent conductive material. In this embodiment, the sub-electrode 510 has a diamond shape, and each of the sub-electrodes 510 is opposite to the area occupied by each of the diamond-shaped sensing electrodes 312 in the sensing layer 300, that is, each of the sub-electrodes 510 is distributed in the sub-electrode layer 500 and the driving layer. 200. The driving electrodes 210 are in a region facing each other with a gap region therebetween. In the region of the secondary electrode layer 500 that faces a certain sensing electrode 310 of the sensing layer 300, only one secondary electrode 510 is used. The function of the sub-electrode layer 500 of this embodiment is substantially the same as that of the third embodiment and the fourth embodiment.
如第6-5圖所示,該次電極層500位於驅動層200之 上,該屏蔽層400位於傳感層300之下。本實施例互電容C的形成和電場分布情况與第四實施例基本相同,因此,本實施例可以有效提高互電容C的有效電容率。The electrode layer 500 is located in the driving layer 200 as shown in FIGS. 6-5. The shield layer 400 is located below the sensing layer 300. The formation of the mutual capacitance C and the electric field distribution of the present embodiment are substantially the same as those of the fourth embodiment. Therefore, the present embodiment can effectively increase the effective permittivity of the mutual capacitance C.
本發明第六實施例,如第7圖所示,該互電容式觸控板包括驅動層200、傳感層300、屏蔽層400和次電極層500。According to a sixth embodiment of the present invention, as shown in FIG. 7, the mutual capacitive touch panel includes a driving layer 200, a sensing layer 300, a shielding layer 400, and a sub-electrode layer 500.
如第7-1圖所示,該驅動層200包括驅動電極210,而且各驅動電極210是六邊形驅動電極213,本實施例設置了16個六邊形驅動電極213。該六邊形驅動電極213透過驅動電極連接線220被分組串聯成4組驅動電極組240,每組驅動電極組240中的各六邊形驅動電極213的幾何中心和各驅動電極連接線220在同一直線上,而且各驅動電極組240內的驅動電極連接線220所在的直線互相平行。各驅動電極組240與觸控板外設的激勵信號模塊600電連接的情况如同第一實施例。As shown in FIG. 7-1, the driving layer 200 includes the driving electrodes 210, and each of the driving electrodes 210 is a hexagonal driving electrode 213. In this embodiment, 16 hexagonal driving electrodes 213 are provided. The hexagonal driving electrodes 213 are grouped into four groups of driving electrode groups 240 through the driving electrode connection lines 220. The geometric centers of the respective hexagonal driving electrodes 213 and the driving electrode connection lines 220 in each group of driving electrode groups 240 are The straight lines on the same straight line and the drive electrode connection lines 220 in the respective drive electrode groups 240 are parallel to each other. The case where each of the driving electrode groups 240 is electrically connected to the excitation signal module 600 of the touch panel peripheral is as in the first embodiment.
如第7-2圖所示,該傳感層300包括傳感電極310,而且各傳感電極310是菱形傳感電極313,本實施例設置了25個菱形傳感電極313。該菱形傳感電極313透過傳感電極連接線320被分組串聯成5組傳感電極組340,每組傳感電極組340中的各菱形傳感電極313的幾何中心和各菱形傳感電極連接線320在同一直線上,而且各傳感電極組340內的傳感電極連接線320所在的直線互相平行。各傳感電極組340與觸控板外設的傳感控制模塊700電連接情况如同第一實施例。As shown in FIG. 7-2, the sensing layer 300 includes sensing electrodes 310, and each sensing electrode 310 is a diamond sensing electrode 313. In this embodiment, 25 diamond sensing electrodes 313 are disposed. The diamond sensing electrodes 313 are grouped into five groups of sensing electrode groups 340 through the sensing electrode connection lines 320. The geometric centers of the diamond sensing electrodes 313 in each group of sensing electrode groups 340 are connected to the respective diamond sensing electrodes. The lines 320 are on the same line, and the lines in which the sensing electrode connection lines 320 in the respective sensing electrode groups 340 are located are parallel to each other. The sensing electrode module 340 is electrically connected to the sensing control module 700 of the touch panel peripheral as in the first embodiment.
該各菱形傳感電極313分布在傳感層300中與驅動層200中所述各六邊形驅動電極213之間形成的間隙區域正對的區域內,令該六邊形驅動電極213和菱形傳感電極313一起填充該觸控板的觸摸區域110。該驅動電極連接線220與傳感電極連接線320互相垂直。The diamond-shaped sensing electrodes 313 are distributed in a region of the sensing layer 300 opposite to the gap region formed between the hexagonal driving electrodes 213 in the driving layer 200, and the hexagonal driving electrodes 213 and the diamond shape are arranged. The sensing electrodes 313 together fill the touch area 110 of the touch panel. The driving electrode connection line 220 and the sensing electrode connection line 320 are perpendicular to each other.
所述第六實施例中,驅動層200位於傳感層300的下方,如第7-3圖所示,該屏蔽層400包括用透明導電材料製成的平板屏蔽電極410,該各屏蔽電極410正對著傳感層300中各傳感電極310所占區域,即各該屏蔽電極410分布在屏蔽層400中與所述驅動層200中各驅動電極210相互間空隙區域正對著的區域內。本實施例該屏蔽層400的作用與第二實施例和第四實施例基本相同。In the sixth embodiment, the driving layer 200 is located under the sensing layer 300. As shown in FIGS. 7-3, the shielding layer 400 includes a flat shielding electrode 410 made of a transparent conductive material, and the shielding electrodes 410 are respectively disposed. The regions occupied by the sensing electrodes 310 in the sensing layer 300, that is, the shielding electrodes 410 are distributed in the shielding layer 400 and the regions facing the gap regions of the driving electrodes 210 in the driving layer 200. . The function of the shield layer 400 of this embodiment is substantially the same as that of the second embodiment and the fourth embodiment.
所述第六實施例中,驅動層200位於傳感層300的下方,如第7-4圖所示,該次電極層500包括間隔分布的用透明導電材料製成的平板次電極510。各該次電極510正對著驅動層200各驅動電極210所占區域,即各該次電極510分布在次電極層500中與該傳感層300各傳感電極310相互間的空隙區域正對著的區域內。本實施例該次電極510呈三角形,在次電極層500中與該驅動層200中一個六邊形驅動電極213所占區域正對的區域內,需要設置6個次電極510,如上所述,這種設計使得次電極510的面積减小,使電場分布更加均勻,有利於觸摸傳感。本實施例所述次電極層500的作用與第三實施例和第四實施例基本相同。In the sixth embodiment, the driving layer 200 is located under the sensing layer 300. As shown in FIGS. 7-4, the sub-electrode layer 500 includes spaced-apart planar sub-electrodes 510 made of a transparent conductive material. Each of the sub-electrodes 510 is opposite to the area occupied by the driving electrodes 210 of the driving layer 200, that is, the sub-electrodes 510 are distributed in the sub-electrode layer 500 and the gap regions between the sensing electrodes 310 of the sensing layer 300 are opposite to each other. Within the area. In this embodiment, the secondary electrode 510 has a triangular shape. In the region of the secondary electrode layer 500 opposite to the region occupied by one of the hexagonal driving electrodes 213 in the driving layer 200, six secondary electrodes 510 need to be disposed, as described above. This design reduces the area of the sub-electrode 510, making the electric field distribution more uniform, which is advantageous for touch sensing. The function of the sub-electrode layer 500 of this embodiment is substantially the same as that of the third embodiment and the fourth embodiment.
如第7-5圖所示,該次電極層500位於傳感層300之下,該屏蔽層400位於驅動層200之上。本實施例互電容C的形成和電場分布情况與第四實施例基本相同,因此,本實施例可以有效提高互電容C的有效電容率。As shown in FIGS. 7-5, the sub-electrode layer 500 is located under the sensing layer 300, and the shielding layer 400 is located above the driving layer 200. The formation of the mutual capacitance C and the electric field distribution of the present embodiment are substantially the same as those of the fourth embodiment. Therefore, the present embodiment can effectively increase the effective permittivity of the mutual capacitance C.
本發明還關於一種組合式互電容觸控板,適用於面積較大的觸控板。當上述互電容式觸控板的面積較大時,需要增加驅動電極和傳感電極的數量,過長的電極組使得電阻過大,導致互電容通路的帶寬降低,給電路驅動和傳感帶來不便。為了避免出現上述情况,本發明提出一種由互電容式觸控板組合而成的組合式互電容觸控板。The invention also relates to a combined mutual capacitance touch panel, which is suitable for a touch panel with a large area. When the area of the mutual capacitive touch panel is large, the number of driving electrodes and sensing electrodes needs to be increased. If the electrode group is too long, the resistance is too large, resulting in a decrease in the bandwidth of the mutual capacitance path, which brings circuit driving and sensing. inconvenient. In order to avoid the above situation, the present invention provides a combined mutual capacitance touch panel composed of a mutual capacitive touch panel.
如第8圖至第10圖所示,該組合式互電容觸控板包括用透明絕緣介質製成的觸摸面板1100,尤其是,還包括被該觸摸面板1100覆蓋的緊密排布的至少兩個互電容觸摸單元1000,該互電容觸摸單元1000一起充滿觸摸面板1100的觸摸區域。該互電容觸摸單元1000的結構與本發明互電容式觸控板類似,包括驅動層200和傳感層300,以及夾在該驅動層200和傳感層300之間的用透明絕緣介質製成的電容介質平面910。該驅動層200包括在同一平面內間隔分布的用透明導電材料製成的平板驅動電極210;該傳感層300包括在同一平面內間隔分布的用透明導電材料製成的平板傳感電極310,各該傳感電極310分布在傳感層300中與驅動層200中各該驅動電極210相互間空隙區域正對著的區域內,令該驅動電極210和傳感電極310一起填充它們所在互電容觸摸單元1000的觸摸區域110;該驅 動電極210與組合式互電容觸控板外設的對應於該驅動電極210所在互電容觸摸單元1000的激勵信號模塊600電連接,該傳感電極310與組合式互電容觸控板外設的對應於該傳感電極310所在的互電容觸摸單元1000的傳感控制模塊700電連接。As shown in FIGS. 8-10, the combined mutual capacitance touch panel includes a touch panel 1100 made of a transparent insulating medium, and in particular, at least two closely arranged by the touch panel 1100. The mutual capacitance touch unit 1000 is filled with the touch area of the touch panel 1100 together. The mutual capacitance touch unit 1000 is similar in structure to the mutual capacitance type touch panel of the present invention, and includes a driving layer 200 and a sensing layer 300, and a transparent insulating medium sandwiched between the driving layer 200 and the sensing layer 300. Capacitive dielectric plane 910. The driving layer 200 includes a flat driving electrode 210 made of a transparent conductive material and spaced apart in the same plane; the sensing layer 300 includes a flat sensing electrode 310 made of a transparent conductive material and spaced apart in the same plane. Each of the sensing electrodes 310 is distributed in a region of the sensing layer 300 opposite to the gap region between the driving electrodes 210 of the driving layer 200, so that the driving electrode 210 and the sensing electrode 310 together fill their mutual capacitance. Touch area 110 of touch unit 1000; the drive The movable electrode 210 is electrically connected to the excitation signal module 600 of the mutual capacitive touch unit 1000 corresponding to the driving electrode 210, and the sensing electrode 310 and the combined mutual capacitance touch panel peripheral The sensing control module 700 corresponding to the mutual capacitance touch unit 1000 where the sensing electrode 310 is located is electrically connected.
本發明第七實施例,如第8圖所示,該組合式互電容觸控板包括4個互電容觸摸單元1000,該互電容觸摸單元1000的驅動層200和傳感層300的結構可以使用第一實施例至第六實施例中的任何一個。該組合式互電容觸控板可以透過在外設的控制電路,分別採集各互電容觸摸單元1000的電容分布數據,然後經過數據匯總和分析,準確地判斷整個觸摸面板1100上被觸摸的情况。According to a seventh embodiment of the present invention, as shown in FIG. 8, the combined mutual capacitance touch panel includes four mutual capacitance touch units 1000, and the structure of the driving layer 200 and the sensing layer 300 of the mutual capacitance touch unit 1000 can be used. Any of the first to sixth embodiments. The combined mutual capacitance touch panel can separately collect the capacitance distribution data of each mutual capacitance touch unit 1000 through the control circuit of the peripheral device, and then accurately determine the touched condition on the entire touch panel 1100 through data summarization and analysis.
本發明第八實施例,如第9圖所示,在第七實施例基礎上在每個互電容觸摸單元1000中加入了屏蔽層400,該屏蔽層400設置於驅動層200和傳感層300中位於下方的一層的上方、下方或者嵌套在該層內。該屏蔽層400包括用透明導電材料製成的平板屏蔽電極410,以及屏蔽電極引出導線430;各該屏蔽電極410正對著該驅動層200和傳感層300中位於上方的一層中各電極所占區域。該屏蔽電極410可以是電懸空的,也可以接交流地,在本實施例中,借助屏蔽電極引出導線430,該互電容觸摸單元1000各自的屏蔽電極410與組合式互電容觸控板外設的直流源800電連接。According to the eighth embodiment of the present invention, as shown in FIG. 9, a shielding layer 400 is added to each mutual capacitance touch unit 1000 based on the seventh embodiment. The shielding layer 400 is disposed on the driving layer 200 and the sensing layer 300. The middle layer below or below the lower layer or nested within the layer. The shielding layer 400 includes a flat shield electrode 410 made of a transparent conductive material, and a shield electrode lead-out wire 430; each of the shield electrodes 410 is opposite to each of the electrodes in the upper layer of the driving layer 200 and the sensing layer 300. Occupy the area. The shielding electrode 410 can be electrically suspended or connected to an alternating ground. In this embodiment, the conductive lead 430 is led out by the shielding electrode, and the shielding electrode 410 and the combined mutual capacitive touch panel peripheral of the mutual capacitive touch unit 1000 are respectively The DC source 800 is electrically connected.
本發明第九實施例,如第10圖所示,在第七實施例基 礎上在每個互電容觸摸單元1000中加入了屏蔽層400和次電極層500。該屏蔽層400內的結構與第八實施例相同,該次電極層300設置於驅動層200和傳感層300中位於上方的一層的上方、下方或者嵌套在該層內。該次電極層500包括用透明導電材料製成的平板次電極510,各該次電極510正對著該驅動層200和傳感層300中位於下方的一層中各電極所占區域。A ninth embodiment of the present invention, as shown in FIG. 10, is based on the seventh embodiment The shield layer 400 and the sub-electrode layer 500 are added to each of the mutual capacitance touch units 1000. The structure in the shielding layer 400 is the same as that in the eighth embodiment. The sub-electrode layer 300 is disposed above or below the upper layer of the driving layer 200 and the sensing layer 300 or nested within the layer. The sub-electrode layer 500 includes a plate sub-electrode 510 made of a transparent conductive material, and each of the sub-electrodes 510 is opposite to a region occupied by each electrode in the lower layer of the driving layer 200 and the sensing layer 300.
另外,不同於所述第八實施例,如第10圖所示,該第九實施例中還包括用透明導電材料製成的屏蔽層連接線1420,以及屏蔽層引出導線1430;借助該屏蔽層連接線1420將該互電容觸摸單元1000各自的屏蔽層400電連接在一起,並透過屏蔽層引出導線1430接地,當然,所述屏蔽電極還可以是電懸空的,或者與組合式互電容觸控板外設的直流源電連接。Further, unlike the eighth embodiment, as shown in FIG. 10, the ninth embodiment further includes a shield layer connecting line 1420 made of a transparent conductive material, and a shield layer lead-out wire 1430; by means of the shield layer The connecting line 1420 electrically connects the shielding layers 400 of the mutual capacitive touch unit 1000, and grounds the lead wires 1430 through the shielding layer. Of course, the shielding electrodes may also be electrically suspended or combined with the combined mutual capacitance touch. The DC source of the board peripheral is electrically connected.
所述第七至第九實施例中,驅動層200、傳感層300、屏蔽層400和次電極層500的結構可以參考第一至第六實施例中的任何一種,或者是任何符合本發明上述技術方案的結構。In the seventh to ninth embodiments, the structures of the driving layer 200, the sensing layer 300, the shielding layer 400, and the sub-electrode layer 500 may be referred to any one of the first to sixth embodiments, or any according to the present invention. The structure of the above technical solution.
本發明所述透明導電材料是現有技術常用材料,包括氧化銦錫Indium Tin Oxide,簡稱ITO,以及銻摻雜氧化錫Antimony Tin Oxide,簡稱ATO。The transparent conductive material of the present invention is a commonly used material in the prior art, including Indium Tin Oxide, ITO, and Antimony Tin Oxide (ATO).
100‧‧‧觸摸平面100‧‧‧ touch plane
100’‧‧‧觸摸平面100’‧‧‧ touch plane
110‧‧‧觸摸區域110‧‧‧Touch area
120‧‧‧保護平面120‧‧‧protection plane
150‧‧‧手指150‧‧‧ fingers
150’‧‧‧手指150’‧‧‧ fingers
200‧‧‧驅動層200‧‧‧ drive layer
200’‧‧‧驅動層200’‧‧‧ drive layer
210‧‧‧平板驅動電極210‧‧‧ flat drive electrodes
210’‧‧‧驅動線210’‧‧‧ drive line
211‧‧‧矩形驅動電極211‧‧‧Rectangular drive electrode
212‧‧‧菱形驅動電極212‧‧‧Rhombus Drive Electrode
213‧‧‧六邊形驅動電極213‧‧‧hexagon drive electrodes
220‧‧‧驅動電極連接線220‧‧‧Drive electrode connection line
230‧‧‧驅動電極引出導線230‧‧‧Drive electrode lead wire
240‧‧‧驅動電極組240‧‧‧Drive electrode set
300‧‧‧傳感層300‧‧‧ sensing layer
300’‧‧‧傳感層300’‧‧‧ sensor layer
310‧‧‧平板傳感電極310‧‧‧ flat sensing electrodes
310’‧‧‧傳感線310’‧‧‧ sensing line
311‧‧‧矩形傳感電極311‧‧‧Rectangular sensing electrode
312‧‧‧菱形傳感電極312‧‧‧Rhombus sensing electrodes
313‧‧‧菱形傳感電極313‧‧‧Rhombus sensing electrodes
320‧‧‧傳感電極連接線320‧‧‧Sensor electrode cable
330‧‧‧傳感電極引出導線330‧‧‧Sensor electrode lead wire
340‧‧‧傳感電極組340‧‧‧Sensor electrode set
400‧‧‧屏蔽層400‧‧‧Shield
410‧‧‧平板屏蔽電極410‧‧‧Slab shield electrode
430‧‧‧屏蔽電極引出導線430‧‧‧Shield electrode lead wire
500‧‧‧次電極層500‧‧‧ electrode layers
510‧‧‧次電極510‧‧ ‧ electrodes
600‧‧‧激勵信號模塊600‧‧‧Excitation signal module
700‧‧‧傳感控制模塊700‧‧‧Sensor Control Module
800‧‧‧直流源800‧‧‧DC source
910‧‧‧電容介質平面910‧‧‧Capacitive medium plane
910’‧‧‧介質平面910’‧‧‧Media plane
1000‧‧‧互電容觸摸單元1000‧‧‧mutual capacitive touch unit
1100‧‧‧觸摸面板1100‧‧‧ touch panel
1420‧‧‧屏蔽層連接線1420‧‧‧Shield connection cable
1430‧‧‧屏蔽層引出導線1430‧‧‧Shield lead wire
第1-1圖至第1-6圖是關於本發明“互電容式觸控 板”的第一實施例的結構和原理示意圖,包括:第1-1圖是該第一實施例的傳感層300的正投影主視示意圖;第1-2圖是該第一實施例的驅動層200的正投影主視示意圖;第1-3圖是該第一實施例的正投影主視示意圖;第1-4圖是第1-3圖的A-A剖視示意圖;第1-5圖是第1-4圖中O1 點在未被觸摸時的電場分布示意圖;第1-6圖是第1-4圖中O1 點在被觸摸時的電場分布示意圖;第2-1圖至第2-5圖是關於本發明“互電容式觸控板”的第二實施例的結構和原理示意圖,包括:第圖是該第二實施例的屏蔽層400的正投影主視示意圖;第2-2圖是該第二實施例的嵌套在一起的驅動層200和屏蔽層400的正投影主視示意圖;第2-3圖是該第二實施例的正投影仰視剖視示意圖;第2-4圖是第2-3圖中O2 點在未被觸摸時的電場分布示意圖;第2-5圖是第2-3圖中O2 點在被觸摸時的電場分布示意圖;第3圖是本發明第二實施例的驅動層200與屏蔽層400與觸控板外設裝置的連接方式示意圖,包括第3-1圖至第 3-4圖四種連接方式;第4-1圖至第4-5圖是關於本發明“互電容式觸控板”的第三實施例的結構和原理示意圖,包括:第4-1圖是該第三實施例的次電極層500的正投影主視示意圖;第4-2圖是該第三實施例的嵌套在一起的傳感層300和次電極層500的正投影主視示意圖;第4-3圖是該第三實施例的正投影仰視剖視示意圖;第4-4圖是第4-3圖中O3 點在未被觸摸時的電場分布示意圖;第4-5圖是第4-3圖中O3 點在被觸摸時的電場分布示意圖;第5-1圖至第5-3圖是關於本發明“互電容式觸控板”的第四實施例的結構和原理示意圖,包括:第5-1圖是該第四實施例的正投影仰視剖視示意圖;第5-2圖是第5-1圖中O4 點在未被觸摸時的電場分布示意圖;第5-3圖是第5-1圖中O4 點在被觸摸時的電場分布示意圖;第6-1圖至第6-5圖是關於本發明“互電容式觸控板”的第五實施例的結構示意圖,包括:第6-1圖是該第五實施例的驅動層200的正投影主視示意圖;第6-2圖是該第五實施例的傳感層300的正投影主視 示意圖;第6-3圖是該第五實施例的屏蔽層400的正投影主視示意圖;第6-4圖是該第五實施例的次電極層500的正投影主視示意圖;第6-5圖是該第五實施例按第6-1圖中的B-B方向的剖視示意圖;第7-1圖至第7-5圖是關於本發明“互電容式觸控板”的第六實施例的結構示意圖,包括:第7-1圖是該第六實施例的驅動層200的正投影主視示意圖;第7-2圖是該第六實施例的傳感層300的正投影主視示意圖;第7-3圖是該第六實施例的屏蔽層400的正投影主視示意圖;第7-4圖是該第六實施例的次電極層500的正投影主視示意圖;第7-5圖是該第六實施例按第7-1圖中的C-C方向的剖視示意圖。FIG. 1-1 to FIG. 1-6 are schematic diagrams showing the structure and principle of the first embodiment of the “mutual capacitance touch panel” of the present invention, including: FIG. 1-1 is the sensing of the first embodiment. A front view of a front view of the drive layer 200 of the first embodiment; a front view of the front view of the first embodiment; Figure 1-4 is a schematic cross-sectional view taken along line A-A of Figures 1-3; Figure 1-5 is a schematic view of electric field distribution when O 1 point is not touched in Figures 1-4; 1-4 is a schematic diagram of electric field distribution when O 1 point is touched; FIGS. 2-1 to 2-5 are schematic diagrams showing the structure and principle of the second embodiment of the "mutual capacitance touch panel" of the present invention. Including: the figure is a front projection front view of the shielding layer 400 of the second embodiment; and FIG. 2-2 is the orthographic projection main of the driving layer 200 and the shielding layer 400 nested together in the second embodiment. a schematic view; Fig. 2-3 is a second embodiment of the orthogonal projection of a bottom cross-sectional view; FIG. 2-4, FIG. 2-3 is an electric field in the point O 2 is not touched a schematic distribution ; FIG 2-5 FIG. 2-3 is a point O 2 in the electric field distribution when touched schematic; Fig. 3 is a driver layer of the second embodiment of the present invention, the shielding layer 200 and the touch panel 400 and the peripheral devices Schematic diagram of the connection mode, including the four connection modes of FIG. 3-1 to FIG. 3-4; FIG. 4-1 to FIG. 4-5 are the third embodiment of the "mutual capacitance touch panel" of the present invention. Schematic diagram of the structure and principle, including: Figure 4-1 is a front projection front view of the secondary electrode layer 500 of the third embodiment; and Figure 4-2 is a nested sensing of the third embodiment. Front view of the front view of the layer 300 and the sub-electrode layer 500; Figure 4-3 is a schematic cross-sectional view of the third embodiment of the front projection; Figure 4-4 shows the point of the O 3 at the 4-3 Schematic diagram of electric field distribution when touched; Fig. 4-5 is a schematic diagram of electric field distribution when O 3 point is touched in Fig. 4-3; Fig. 5-1 to Fig. 5-3 are related to "reciprocal capacitance" of the present invention A schematic diagram of the structure and principle of the fourth embodiment of the touch panel includes: FIG. 5-1 is a schematic cross-sectional side elevational view of the fourth embodiment; FIG. 5-2 is a schematic view 5-1 in FIG point O 4 is not touched when the electric field distribution schematic; Fig 5-3 are 5-1 in FIG point O 4 is touched electric field distribution schematic; FIGS 6-1 through 6-5 is a schematic structural view of a fifth embodiment of the "mutual-capacitive touch panel" of the present invention, including: FIG. 6-1 is a front projection front view of the driving layer 200 of the fifth embodiment; 6-2 is a front projection front view of the sensing layer 300 of the fifth embodiment; FIG. 6-3 is a front projection front view of the shielding layer 400 of the fifth embodiment; FIG. A schematic front view of the secondary electrode layer 500 of the fifth embodiment; FIG. 6-5 is a schematic cross-sectional view of the fifth embodiment taken along line B-B of FIG. 6-1; FIG. 7-5 is a schematic structural view of a sixth embodiment of the “mutual capacitance touch panel” of the present invention, including: FIG. 7-1 is a front projection front view of the driving layer 200 of the sixth embodiment. FIG. 7-2 is a front elevational front view of the sensing layer 300 of the sixth embodiment; and FIG. 7-3 is a front projection front view of the shielding layer 400 of the sixth embodiment. Figure 7-4 is a front elevational view of the secondary electrode layer 500 of the sixth embodiment; and Figures 7-5 are cross-sectional views of the sixth embodiment in the C-C direction of Figure 7-1. schematic diagram.
第8-1圖至第8-2圖是關於本發明“組合式互電容觸控板”的第七實施例的結構示意圖,包括:第8-1圖是該第七實施例的正投影主視示意圖;第8-2圖是該第七實施例的正投影仰視示意圖;第9-1圖至第9-2圖是關於本發明“組合式互電容觸 控板”的第八實施例的結構示意圖,包括:第9-1圖是該第八實施例的正投影主視示意圖;第9-2圖是該第八實施例的正投影仰視示意圖;第10-1圖至第10-2圖是關於本發明“組合式互電容觸控板”的第九實施例的結構示意圖,包括:第10-1圖是該第九實施例的正投影主視示意圖;第10-2圖是該第九實施例的正投影仰視示意圖;第11-1圖至第11-4圖是現有技術互電容觸控板的結構和原理示意圖,包括:第11-1圖是該觸控板的正投影主視示意圖;第11-2圖是第11-1圖的仰視剖面示意圖;第11-3圖是未觸摸該觸控板時的電場分布示意圖;第11-4圖是觸摸該觸控板時的電場分布示意圖。8-1 to 8-2 are schematic structural views of a seventh embodiment of the "combined mutual capacitance touch panel" of the present invention, including: FIG. 8-1 is a front projection main image of the seventh embodiment. Figure 8-2 is a schematic view of the orthographic projection of the seventh embodiment; Figures 9-1 to 9-2 are related to the "combined mutual capacitance contact" of the present invention. A schematic structural view of an eighth embodiment of the control panel includes: FIG. 9-1 is a schematic front view of the eighth embodiment; and FIG. 9-2 is a front projection bottom view of the eighth embodiment; 10-1 to 10-2 are structural diagrams of a ninth embodiment of the "combined mutual capacitance touch panel" of the present invention, including: FIG. 10-1 is an orthographic projection of the ninth embodiment. FIG. 10-2 is a schematic front view of the ninth embodiment; FIG. 11-1 to FIG. 11-4 are schematic diagrams showing the structure and principle of a prior art mutual-capacitive touch panel, including: 11-1 Figure 1 is a front elevational view of the touch panel; Figure 11-2 is a bottom cross-sectional view of Figure 11-1; Figure 11-3 is a schematic diagram of electric field distribution when the touchpad is not touched; 4 is a schematic diagram of electric field distribution when the touch panel is touched.
110‧‧‧觸摸區域110‧‧‧Touch area
210‧‧‧平板驅動電極210‧‧‧ flat drive electrodes
211‧‧‧矩形驅動電極211‧‧‧Rectangular drive electrode
240‧‧‧驅動電極組240‧‧‧Drive electrode set
310‧‧‧平板傳感電極310‧‧‧ flat sensing electrodes
311‧‧‧矩形傳感電極311‧‧‧Rectangular sensing electrode
340‧‧‧傳感電極組340‧‧‧Sensor electrode set
Claims (8)
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TWI390281B (en) | 2009-06-05 | 2013-03-21 | Higgstec Inc | Micro-matrix electrode and the touch panel thereof |
TWI403946B (en) * | 2009-06-15 | 2013-08-01 | Au Optronics Corp | Display device and method of applying the same |
TWI401590B (en) | 2009-06-25 | 2013-07-11 | Htc Corp | Touch panel with unbalanced conductive patterns, and touch apparatus and method for determining multi-touch thereof |
TWI417598B (en) * | 2009-09-11 | 2013-12-01 | Century Display Shenzhen Co | Touch panel |
US8194047B2 (en) * | 2009-11-16 | 2012-06-05 | Au Optronics Corporation | Multi-channel touch panel |
TWI396125B (en) * | 2009-11-19 | 2013-05-11 | Raydium Semiconductor Corp | Coupling capacitance eliminating apparatus and method |
JP5566676B2 (en) * | 2009-12-18 | 2014-08-06 | 富士通コンポーネント株式会社 | Touch panel and touch panel coordinate detection method |
TWI426440B (en) * | 2010-03-22 | 2014-02-11 | Ind Tech Res Inst | Flexible slide-touch controlling device and related contact location determination method thereof |
US8933907B2 (en) * | 2010-04-30 | 2015-01-13 | Microchip Technology Incorporated | Capacitive touch system using both self and mutual capacitance |
TWI447628B (en) * | 2011-08-17 | 2014-08-01 | Shih Hua Technology Ltd | Touch panel and optimization method of touch-control signal |
KR101389086B1 (en) * | 2012-04-12 | 2014-04-25 | 티피케이 터치 솔루션즈 (씨아먼) 인코포레이티드 | Conductor pattern structure of capacitive touch panel |
TWI475456B (en) * | 2012-08-23 | 2015-03-01 | Egalax Empia Technology Inc | Capacitive touch screen |
US8816232B2 (en) | 2012-09-19 | 2014-08-26 | Htc Corporation | Touch panel |
CN103677367B (en) * | 2012-09-19 | 2016-08-24 | 宏达国际电子股份有限公司 | Contact panel |
TWI488101B (en) * | 2013-06-20 | 2015-06-11 | Focaltech Systems Ltd | Capacitive touch screen and method for making the same |
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TWI489364B (en) * | 2013-08-23 | 2015-06-21 | Pixart Imaging Inc | Noise shielded capacitive touch device |
TWI575430B (en) * | 2014-12-17 | 2017-03-21 | 速博思股份有限公司 | Mutual-capacitance input device with hovering touch |
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