M364913 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種電容式觸控板之線路，特別是關於一 種形成於觸控板之觸控電路圖形内，用以避免觸控電路之 訊號大幅衰減的佈線結構。 【先前技術】 " 按，現有觸控板（Touch Panel)的觸控輸入方式，包 -括有電阻式、電容式、光學式、電磁感應式、音波感應式 • 等；其中’電容式觸控板是藉由使用者以手指或感應筆對 觸控板表面進行觸碰，而於受觸碰位置之觸控板内部產生 電流的變化’據以偵測出觸控板表面接受觸碰的位置，以 達到觸控輸入的目的。 且知’為了要偵測出使用者以手指或感應筆觸碰於觸 控板上之位置，業者研發出各種不同之電容式觸碰感測技 術。舉如一種呈格狀之電容式觸控電路圖形之結構，包括 有兩，電容感應層，其間以一絕緣層分隔，以形成電容效 應二每一電容感應層包括實質平行排列之複數透明條狀導 ，元件’各電容感應層之條狀導電元件實質上彼此垂直， 5個ί電凡件包括一序列呈菱形之電極區塊，係利用透 之導電材料（舉如氧化銦錫Indium Tin Oxide，ΙΤΌ)製 發且該等電極區塊係藉由狹窄之導線連接一起，一 應層上之導電元件係分別連接至周邊之-訊號線， 電元件之^制電路透過該等訊號線分職供訊號至兩組導 在該表面被觸碰時接收由電極區塊所產生之觸 控訊號，以_在每—層之觸控位置。 M364913 請參閱圖1及圖2所示，圖1為上述傳統觸控板之條 狀導電元件2f的配置示意圖，圖2為圖1之等效電路圖，M364913 V. New Description: [New Technology Field] The present invention relates to a circuit of a capacitive touch panel, in particular to a touch circuit pattern formed on a touch panel, in order to avoid a large signal of the touch circuit. Attenuated wiring structure. [Previous technology] " According to the touch input method of the existing touch panel, the package includes resistive, capacitive, optical, electromagnetic induction, acoustic induction, etc. The control panel is caused by the user touching the surface of the touchpad with a finger or a sensor pen, and generating a current change in the touchpad inside the touched position to detect that the surface of the touchpad is touched. Position to achieve the purpose of touch input. In order to detect the position of the user touching the touch panel with a finger or a sensor pen, the manufacturer has developed various capacitive touch sensing technologies. For example, a structure of a capacitive capacitive touch circuit pattern includes two capacitive sensing layers separated by an insulating layer to form a capacitive effect. Each capacitive sensing layer includes a plurality of transparent strips arranged substantially in parallel. The strip-shaped conductive elements of each of the capacitive sensing layers are substantially perpendicular to each other, and the five electrodes comprise a sequence of diamond-shaped electrode blocks, which are made of a conductive material (such as Indium Tin Oxide, ΙΤΌ) the hair is made and the electrode blocks are connected by narrow wires, and the conductive elements on one layer are respectively connected to the peripheral-signal lines, and the circuit of the electrical components is divided by the signal lines. The signal to the two groups of guides receives the touch signal generated by the electrode block when the surface is touched, to the touch position of each layer. M364913, please refer to FIG. 1 and FIG. 2, FIG. 1 is a schematic view showing the arrangement of strip-shaped conductive elements 2f of the above conventional touch panel, and FIG. 2 is an equivalent circuit diagram of FIG.
說明銜接單一訊號線3f於該條狀導電元件2f之一第一端 21f，該控制電路之訊號可沿著導電元件2f進行傳遞，而到 達導電元件2f之一第二端22f，且該導電元件2f之第二端 22f的訊號，亦可沿著導電元件2f進行傳遞，而到達導電元 件2f之第一端2lf，並經由該訊號線3f及一連接墊31f輸 出至該控制電路；但，該導電元件2f之訊號的傳遞，必須 考慮該等電極區塊23f與該等導線24f的總阻抗Z3。然而， 由於各電極區塊23f相互銜接處會産生寄生電容C5、C6、 C7、C8 ’而使各電極區塊23f間之導線撕的阻抗，會占The first signal terminal 3f is connected to the first end 21f of the strip-shaped conductive element 2f. The signal of the control circuit can be transmitted along the conductive element 2f to reach the second end 22f of the conductive element 2f, and the conductive element The signal of the second end 22f of the 2f can also be transmitted along the conductive element 2f to reach the first end 2lf of the conductive element 2f, and output to the control circuit via the signal line 3f and a connection pad 31f; The transmission of the signal of the conductive element 2f must take into account the total impedance Z3 of the electrode block 23f and the wires 24f. However, since the electrode blocks 23f are connected to each other, parasitic capacitances C5, C6, C7, and C8' are generated, and the impedance of the wires between the electrode blocks 23f is broken.
總阻抗Z3較大的比重，另當電極區塊23f呈菱形時，各菱 形相銜接處的寬度較小，會導致電極區塊23f之電阻R5、 二R7、R8較大’並造成各菱形相銜接處産生較大的阻抗； 在 統觸控板之條狀導電元件2f，可等效成串、並聯 二：，阻R5、R6、R7、耿及複數電容Ο、以、 阻R5、R6^ %之總阻抗Z3，相當於串聯該等電 元件上之傳魏^抗值；由此可知，城在該導電 號隨著導電^ 2^ 會S積财雜抗，導致訊 成偵測不，甚至造 降低上述觸控雷政夕道齋_ & 的寬度或減少電極區塊二=電阻、增加電極區塊 外觀上的限制， 但這些作法都會受到 譯低導電7L件之總阻抗上未具有顯著 M364913 功效；另外，目前較為先進的技術中，亦揭露有多種關於 觸控板之佈線結構，可見於美國專利No.6825833案、 No.6961049案及No.7324021案；然而，其中並未涉及有關 降低條狀導電元件之阻抗的作法，故顯然未能克服上述訊 號隨著導電元件之阻抗增加而大幅衰減的問題。 【新型内容】 、 為克服上述先前技術中所揭之問題，本創作之目的旨 在提供一種避免訊號衰減之觸控板線路，尤其是藉由降低 _ 觸控電路的總阻抗，以避免輸出之觸控訊號受阻抗影響而 大幅衰減，進而提升觸控之精確度及靈敏度，並提升系統 掃插的速度。 為實現上述之目的，本創作一避免訊號衰減之觸控板 線路’包括： 一呈條狀之導電元件，形成於一基板表面； 一第一訊號線，形成於該基板表面，且連接該導電元 件一端；及 • 一第二訊號線，形成於該基板表面，且連接於該第一 訊號線與該導電元件另一端之間，以降低該導電元件之阻 抗。 ' 據此，本創作可藉由降低觸控電路之導電元件的總阻 、抗’以避免輸出之觸控訊號受阻抗影響而大幅衰減，進而 &升觸控之精確度及靈敏度’並提升系統掃描的速度。其 中， 所述導電元件包括一序列呈菱形或其他多邊形之電極 區塊。 M364913 所述第二訊號線係與該第一訊號線在同一次 設形成於該基板表面。 _ 程中饰 ，以降 所述第一訊號線係由導電性佳之金屬材料製成 低與該導電元件連接後之總阻抗。 此外’本創作另一避免訊號衰減之觸控板線路，包括. 一呈條狀之導電元件，形成於一基板表面； 一第一訊號線’形成於該基板表面，且連接該導電元 件一端； 一第二訊號線’形成於該基板表面’且連接該導電元 件另一端，該第一訊號線及該第三訊號線銜接一軟性電路 板（FPC);及 一第二訊號線，形成於該軟性電路板内，且連接於該 第一訊號線及該第三訊號線之間，以降低該導電元件之阻 抗。據以避免輸出之觸控訊號受阻抗影響而大幅衰減，進 而提升觸控之精確度及靈敏度，並提升系統掃描的速度。 其中， 籲 所述導電元件包括一序列呈菱形或其他多邊形之電極 區塊。 所述第二訊號線係由金屬材料製成。 然而，為能明確且充分揭露本創作，併予列舉出較佳 實施例，請配合參照圖式而詳細說明如後述： 【實施方式】 請參閱圖3 ’揭示出本創作避免訊號衰減之觸控板線路 之一配置示意圖，說明本創作包含一導電元件2、一第一訊 號線3及一第二訊號線4;該導電元件2係形成於一透明基 M364913 板1表面，且該導電元件2係呈條狀而形成有一第一端2i 及第二端22’該導電元件2在本實施上可包括—序列呈菱 形或其他多邊形之電極區塊23，各電極區塊23之間連接一 導線24 ’該第—訊號線3係形成於該基板丨之周邊表面， 並連接該導電元件2之第一端2卜該第二訊號線4係形成 於該基板1表面，且該第二訊號線4係連接於該導電元件2 的該第-端21與該第二端22之間，以降低該導電元件2 之總阻抗；在本實施上，該第二訊號線4可連接於該第一 φ訊號線3與該導電元件2的第二端22之間。 在更加具體的實施上，本創作也包括： 該透明基板1實際上可由玻璃、塑膠或其他透明之絕 緣材料所構成（如圖3所示）。 該導電元件2之電極區塊23及導線24可由透明之導 電材料製成（如冑3所示），該透明之導電材料可以是選用 氧化銦錫（ITO)。 該第一訊號線3 (如圖3所示）一端具一連接墊31， φ且該連接墊31设於該基板1周邊表面，能銜接一軟性電路 板5，以外接一系統之控制電路（未繪製）。 該第二訊號線4係與該第一訊號線3在同一次製程中 佈設形成於該基板1表面（如圖3所示）。 該第二訊號線4可選用導電性佳之金、銀、銅、鋁等 金屬材料製成（如圖3所示），以降低與該導電元件2連接 後之總阻抗。 請參閱圖4,揭示出圖3之等效電路圖，說明該導電元 件2可等效成串、並聯在一起之複數電阻幻、.幻、r4 M364913The total impedance Z3 has a large specific gravity. When the electrode block 23f has a diamond shape, the width of each diamond-shaped junction is small, which causes the resistance R5, the two R7 and R8 of the electrode block 23f to be larger, and each diamond phase is caused. The junction produces a large impedance; the strip-shaped conductive element 2f of the integrated touch panel can be equivalent to string and parallel two:, resistance R5, R6, R7, 耿 and complex capacitor Ο, 、, R5, R6^ The total impedance Z3 of % is equivalent to the transmission of the resistance value on the electrical component in series; thus, it can be seen that the city is not able to detect the signal in the conduction number along with the conduction ^ 2^. Even creating a reduction in the width of the above-mentioned touch Lei Xingdao _ & or reducing the electrode block two = resistance, increase the appearance of the electrode block, but these practices will be affected by the translation of the low-conductivity 7L piece of the total impedance does not have Significantly M364913 efficacy; in addition, the current more advanced technology, also disclosed a variety of wiring structure of the touch panel, can be seen in the US Patent No. 6825833, No.6961049 and No. 7324021; however, it is not involved It is obvious that the method of reducing the impedance of the strip-shaped conductive element is The problem that the above signal is greatly attenuated as the impedance of the conductive element increases is not overcome. [New content] In order to overcome the problems disclosed in the prior art, the purpose of the present invention is to provide a touch panel circuit that avoids signal attenuation, especially by reducing the total impedance of the touch circuit to avoid output. The touch signal is greatly attenuated by the influence of the impedance, thereby improving the accuracy and sensitivity of the touch and increasing the speed of the system sweeping. In order to achieve the above object, the touch panel circuit for avoiding signal attenuation includes: a strip-shaped conductive component formed on a surface of a substrate; a first signal line formed on the surface of the substrate and connected to the conductive One end of the component; and a second signal line formed on the surface of the substrate and connected between the first signal line and the other end of the conductive element to reduce the impedance of the conductive element. According to this, the creation can greatly reduce the total resistance and resistance of the conductive components of the touch circuit to prevent the output touch signal from being greatly affected by the impedance, thereby improving the accuracy and sensitivity of the touch control. The speed of the system scan. The conductive element comprises a sequence of electrode blocks in the form of diamonds or other polygons. The second signal line of the M364913 is formed on the surface of the substrate at the same time as the first signal line. _ Chengzhong ornaments, to lower The first signal line is made of a highly conductive metal material and has a low total impedance after connection with the conductive element. In addition, the touch panel circuit for avoiding signal attenuation includes: a strip-shaped conductive component formed on a surface of the substrate; a first signal line 'on the surface of the substrate and connected to one end of the conductive component; a second signal line 'formed on the surface of the substrate' and connected to the other end of the conductive element, the first signal line and the third signal line are connected to a flexible circuit board (FPC); and a second signal line is formed in the The flexible circuit board is connected between the first signal line and the third signal line to reduce the impedance of the conductive element. According to the detection, the touch signal is prevented from being greatly attenuated by the impedance, thereby improving the accuracy and sensitivity of the touch and increasing the scanning speed of the system. Wherein, the conductive element comprises a sequence of electrode blocks in the form of diamonds or other polygons. The second signal line is made of a metal material. However, in order to clearly and fully disclose the present invention, and to illustrate the preferred embodiments, the following detailed description will be made with reference to the drawings: [Embodiment] Please refer to FIG. 3' to reveal the touch to avoid signal attenuation. A schematic diagram of one of the board lines, the description includes a conductive element 2, a first signal line 3 and a second signal line 4; the conductive element 2 is formed on a surface of a transparent substrate M364913, and the conductive element 2 The first end 2i and the second end 22' are formed in a strip shape. The conductive element 2 may include a diamond block or other polygonal electrode block 23 in the present embodiment, and a wire is connected between each electrode block 23. 24' the first signal line 3 is formed on the peripheral surface of the substrate, and is connected to the first end 2 of the conductive element 2, the second signal line 4 is formed on the surface of the substrate 1, and the second signal line 4 is connected between the first end 21 and the second end 22 of the conductive element 2 to reduce the total impedance of the conductive element 2; in this implementation, the second signal line 4 can be connected to the first φ signal line 3 and second end 22 of the conductive element 2 Room. In a more specific implementation, the creation also includes: The transparent substrate 1 may actually be constructed of glass, plastic or other transparent insulating material (as shown in Figure 3). The electrode block 23 and the wire 24 of the conductive member 2 may be made of a transparent conductive material (as shown by 胄3), and the transparent conductive material may be indium tin oxide (ITO). The first signal line 3 (shown in FIG. 3) has a connection pad 31, φ, and the connection pad 31 is disposed on the peripheral surface of the substrate 1, and can be connected to a flexible circuit board 5, and is connected to a control circuit of the system ( Not drawn). The second signal line 4 is disposed on the surface of the substrate 1 in the same process as the first signal line 3 (as shown in FIG. 3). The second signal line 4 can be made of a metal material such as gold, silver, copper or aluminum which is highly conductive (as shown in Fig. 3) to reduce the total impedance after connection with the conductive element 2. Referring to FIG. 4, an equivalent circuit diagram of FIG. 3 is disclosed, which illustrates that the conductive element 2 can be equivalent to a series of resistors, a plurality of resistors, a phantom, an illusion, and a r4 M364913.
係遠大於該第二訊號線4之阻抗， 丨、C4,且該導電元件2之第一與第 二訊號線4相互耦接，由於該導電 R2、R3、R4及複數電容Cl、、 於導電70件2來說，第二訊號線4的阻抗是可以忽略不古十. 如此，該連接墊31至第二端22之阻抗，相當於連接墊3| 至第一端21之阻抗，且該阻抗分別從第一端21與第二端 22開始累加’因此阻抗累加最高的地方是在該導電元件2 φ 之中段位置A。 藉由上述構件組成，可供據以實施本創作，特別是當 使用者觸碰該導電元件2阻抗最高之位置A時，會形成: 導電70件2之電阻IU、R2與電阻R3、R4並聯的狀態（如 圖5所示），根據電阻並聯公式可以得知，該電阻R1、R2 與電阻R3、R4並聯後之總阻抗z 2，係遠低於該導電元件2 之阻抗Z1 ;如此，該位置A所產生之觸控訊號在經由該第 一訊號線3與第二訊號線4輸出後，仍然可以保持較佳的 訊號強度。 • 依據上述可知，該導電元件2雙端係利用第二訊號線4 在該基板1表面進行耦合，可在不增加觸控板製程且不影 響觸控板外觀的基礎上，降低觸控電路之導電元件2的總 阻抗，以避免輸出之觸控訊號受阻抗影響而大幅衰減，進 ^而提升觸控之精確度及靈敏度，並提升系統掃描的速度。 此外’上述導電元件2a、2b、第一訊號線3a、3b及第 二讯號線4a、4b亦可分別以複數組實施（如圖6所示）；其 中’該4導電元件2a、2b係彼此垂直’且該導電元件2a、 M364913 2b之各電極區塊23a、23b係相互平行且呈矩陣間隔排列， 而使各導線亦相互平行且呈矩陣間隔排列，其餘構件組成 及實施方式係類似於上述實施例。 晴參閱圖7，揭示出本創作避免訊號哀減之觸控板線路 之另一配置示意圖，說明該導電元件2c另一端連接一第三 訊號線6c ’且該第三訊號線6c形成於該基板1表面，該第 一訊號線3c及該第三訊號線6c分別連接一連接墊31c、 61c’藉以銜接一軟性電路板5,該第二訊號線4C係形成於 籲該軟性電路板5内，並連接於二連接塾31c、61c之間，藉 以連接該第一訊號線3c與該第三訊號線6c ;如此，該導電 元件2c雙端係利用第二訊號線4c在該軟性電路板5内進行 耦合’其電路原理與上述實施例相同，據以降低觸控電路 之導電元件2c的總阻抗，進而避免輸出之觸控訊號受阻抗 影響而大幅衰減，其餘構件組成及實施方式係類似於上述 實施例。 再者’上述導電元件2d、2e、第一訊號線3d、3e、第 二訊號線6d、6e及第二訊號線4d、4e亦可分別以複數組實 施（如圖8所示）；其中，該等導電元件2d、2e係彼此垂直， 且該導電元件2d、2e之各電極區塊23d、23e係相互平行且 呈矩陣間隔排列，而使各導線亦相互平行且呈矩陣間隔排 列其餘構件組成及實施方式係類似於上述實施例。 . 综上所陳，僅為本創作之較佳實施例而已，並非用以 限^本創作；凡其他未脫離本創作所揭示之精神下而完成 的等效修飾或置換，均應包含於後述申請專利範圍内。 【圖式簡單說明】 9 M364913 圖1 :為傳統觸控板線路之配置示意圖。 圖2:為圖1之等效電路圖。 圖3 :為本創作觸控板線路之一配置示意圖。 圖4:為圖3之觸控板線路未接受觸碰時之等效電路圖。 圖5 :為圖3之觸控板線路接受觸碰時之等效電路圖。 圖6:為圖3之衍生形態的配置示意圖。 - 圖7:為本創作觸控板線路之另一配置示意圖。 圖8 :為圖7之衍生形態的配置示意圖。 _【主要元件符號說明】 基板 導電元件 第一端 第二端 電極區塊 導線 第一訊號線 連接墊 第二訊號線 軟性電路板 第三訊號線 1 2、 2a、2b、2c、2d、2e、2f 21 > 21f 22 ' 22f 23、 23a、23b、23d、23e、23f 24、 24fThe first and second signal lines 4 of the conductive element 2 are coupled to each other by the conductive lines R2, R3, R4 and the plurality of capacitors C1, 70 pieces 2, the impedance of the second signal line 4 is negligible. Thus, the impedance of the connection pad 31 to the second end 22 corresponds to the impedance of the connection pad 3| to the first end 21, and The impedance is accumulated from the first end 21 and the second end 22, respectively, so that the highest impedance accumulation is in the middle position A of the conductive element 2 φ. By the above-mentioned component composition, the present invention can be implemented, especially when the user touches the position A with the highest impedance of the conductive element 2, the following is formed: Conductor 70 pieces 2 resistors IU, R2 and resistors R3, R4 are connected in parallel The state (as shown in FIG. 5), according to the resistance parallel formula, the total impedance z 2 of the resistors R1 and R2 in parallel with the resistors R3 and R4 is much lower than the impedance Z1 of the conductive element 2; The touch signal generated by the position A can still maintain a better signal strength after being output through the first signal line 3 and the second signal line 4. According to the above, the two ends of the conductive element 2 are coupled on the surface of the substrate 1 by using the second signal line 4, and the touch circuit can be reduced without increasing the touch panel process and affecting the appearance of the touch panel. The total impedance of the conductive element 2 is to prevent the output touch signal from being greatly attenuated by the impedance, thereby improving the accuracy and sensitivity of the touch and improving the scanning speed of the system. In addition, the above-mentioned conductive elements 2a, 2b, the first signal lines 3a, 3b and the second signal lines 4a, 4b can also be implemented in a complex array (as shown in FIG. 6); wherein the 4 conductive elements 2a, 2b are The electrode blocks 23a, 23b of the conductive elements 2a, M364913 2b are arranged parallel to each other and arranged at a matrix interval, so that the wires are also arranged parallel to each other and arranged at a matrix interval, and the remaining members are similar in composition and embodiment. The above embodiment. Referring to FIG. 7 , another configuration diagram of the touch panel line for avoiding signal sorrow is disclosed. The other end of the conductive element 2 c is connected to a third signal line 6 c ′ and the third signal line 6 c is formed on the substrate. The first signal line 3c and the third signal line 6c are respectively connected to a connection pad 31c, 61c' for engaging a flexible circuit board 5, and the second signal line 4C is formed in the flexible circuit board 5. And connected between the two connection ports 31c, 61c, thereby connecting the first signal line 3c and the third signal line 6c; thus, the conductive element 2c is double-ended in the flexible circuit board 5 by using the second signal line 4c The circuit principle is the same as that of the above embodiment, so as to reduce the total impedance of the conductive element 2c of the touch circuit, thereby preventing the output touch signal from being greatly attenuated by the impedance, and the remaining components are similar to the above. Example. Furthermore, the above-mentioned conductive elements 2d, 2e, the first signal lines 3d, 3e, the second signal lines 6d, 6e and the second signal lines 4d, 4e can also be implemented in a complex array (as shown in Fig. 8); The conductive elements 2d, 2e are perpendicular to each other, and the electrode blocks 23d, 23e of the conductive elements 2d, 2e are arranged parallel to each other and arranged at a matrix interval, so that the wires are also arranged parallel to each other and arranged in a matrix at intervals. And embodiments are similar to the above embodiments. In summary, it is only a preferred embodiment of the present invention, and is not intended to limit the creation of the present invention; any equivalent modification or replacement that is not done in the spirit of the present disclosure should be included in the following description. Within the scope of the patent application. [Simple description of the diagram] 9 M364913 Figure 1: Schematic diagram of the configuration of the traditional touchpad circuit. Figure 2: is an equivalent circuit diagram of Figure 1. Figure 3: Schematic diagram of one of the lines of the created touchpad. Figure 4 is an equivalent circuit diagram when the touch panel line of Figure 3 is not touched. Figure 5: An equivalent circuit diagram for the touch panel line of Figure 3 when it is touched. Figure 6 is a schematic diagram showing the configuration of the derivative form of Figure 3. - Figure 7: Schematic diagram of another configuration of the created touchpad line. Figure 8 is a schematic view showing the configuration of the derivative form of Figure 7. _[Main component symbol description] substrate conductive element first end second end electrode block wire first signal line connection pad second signal line flexible circuit board third signal line 1 2, 2a, 2b, 2c, 2d, 2e, 2f 21 > 21f 22 ' 22f 23, 23a, 23b, 23d, 23e, 23f 24, 24f
3、 3a、3b、3c、3d、3e、3f 3 卜 31c、31f、61c 4、 4a、4b ' 4c ' 4d、4e 5 6c、6d、6e3, 3a, 3b, 3c, 3d, 3e, 3f 3 b 31c, 31f, 61c 4, 4a, 4b ' 4c ' 4d, 4e 5 6c, 6d, 6e