TWI515616B - Touch-sensitive electrode structure and touch display device - Google Patents
Touch-sensitive electrode structure and touch display device Download PDFInfo
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Description
本發明係關於一種觸控感測電極結構,以及具有該感測電極結構結構的觸控顯示裝置。 The invention relates to a touch sensing electrode structure and a touch display device having the same.
隨著科技不斷的創新,觸控面板已經廣泛地應用於各式各樣的電子裝置,觸控面板不僅可以省去按鍵的設置,也可以加大顯示裝置的顯示畫面。目前流行的電容式觸控面板的原理是於玻璃基板鍍上一層透明導電薄膜作為感測結構。當使用者用手指觸碰面板時,手指的接近與觸碰會導致感測電極本身電容以及耦合電容變化,依據感測電極結構電容的變化確定手指觸碰的位置。觸控電極對觸控位置判定的準確度一直是本領域的重要課題,因此,如何提高觸控感測電極的在接收到不同位置的觸摸操作時,電容變化更為明顯為目前所要解決的首要技術問題。 With the continuous innovation of technology, touch panels have been widely used in a wide variety of electronic devices. The touch panel can not only save the settings of the buttons, but also increase the display of the display device. The current principle of the capacitive touch panel is to apply a transparent conductive film to the glass substrate as the sensing structure. When the user touches the panel with a finger, the proximity and touch of the finger may cause the capacitance of the sensing electrode itself and the coupling capacitance to change, and the position of the finger touch is determined according to the change of the capacitance of the sensing electrode structure. The accuracy of the touch electrode determination of the touch position has always been an important issue in the field. Therefore, how to improve the capacitance change of the touch sensing electrode when receiving the touch operation at different positions is more important as the current solution. technical problem.
有鑑於此,提供一種在接受到不同位置的觸摸操作時,電容變化更為明顯的觸控感測電極結構。 In view of this, there is provided a touch sensing electrode structure in which a change in capacitance is more remarkable when a touch operation at a different position is received.
進一步,提供一種具有前述觸控感測電極結構的觸控顯示裝置。 Further, a touch display device having the above-described touch sensing electrode structure is provided.
一種觸控感測電極結構,包括複數沿第一方向延伸的感測電極單元,該複數感測電極單元沿第二方向排列,該第一方向與第二方 向垂直,每一感測電極單元包括第一感測電極與第二感測電極,該第一感測電極與該第二感測電極電性分離,該第一感測電極具有第一端及第二端,該第二感測電極具有第三端及第四端,其中,該第一端與該第三端相鄰且相對設置,該第二端與該第四端相鄰且相對設置,該第一感測電極在第二方向上的寬度從第一端到第二端逐漸減小,該第二感測電極在第二方向上的寬度從第三端到第四端逐漸增大,該感測電極單元還包括一第三感測電極,該第三感測電極夾設於該第一感測電極的第二端與該第二感測電極的該第三端之間,該第三感測電極與該第一感測電極在第一方向和該第二方向均不對稱,同時,該第三感測電極與該第二感測電極在該第一方向與該第二方向上均不對稱。 A touch sensing electrode structure includes a plurality of sensing electrode units extending along a first direction, the plurality of sensing electrode units are arranged along a second direction, the first direction and the second side Each of the sensing electrode units includes a first sensing electrode and a second sensing electrode, and the first sensing electrode is electrically separated from the second sensing electrode, the first sensing electrode has a first end and The second end of the second sensing electrode has a third end and a fourth end, wherein the first end is adjacent to and opposite to the third end, and the second end is adjacent to the fourth end and oppositely disposed The width of the first sensing electrode in the second direction is gradually decreased from the first end to the second end, and the width of the second sensing electrode in the second direction is gradually increased from the third end to the fourth end. The sensing electrode unit further includes a third sensing electrode disposed between the second end of the first sensing electrode and the third end of the second sensing electrode, The third sensing electrode and the first sensing electrode are both asymmetric in the first direction and the second direction, and the third sensing electrode and the second sensing electrode are in the first direction and the second direction Both are asymmetrical.
一種觸控顯示裝置,具有前述的觸控感測電極結構與用於顯示圖像的顯示模組。 A touch display device has the above-described touch sensing electrode structure and a display module for displaying an image.
相較於先前技術,該觸控感測電極結構中每一個感測電極均至少包括一條曲線形的邊緣,從而使得每個感測電極在沿其長度延伸方向上接收到不同位置的觸摸操作時電容變化更為明顯,線性度更高,以準確地判定觸摸操作的位置。 Compared with the prior art, each of the sensing electrodes in the touch sensing electrode structure includes at least one curved edge, so that each sensing electrode receives a touch operation at a different position along a direction extending in the length thereof. The change in capacitance is more pronounced and the linearity is higher to accurately determine the position of the touch operation.
10、10、10‧‧‧觸控感測電極結構 10,10,10‧‧‧Touch sensing electrode structure
11‧‧‧感測電極單元 11‧‧‧Sensor electrode unit
111‧‧‧第一感測電極 111‧‧‧First sensing electrode
112‧‧‧第二感測電極 112‧‧‧Second sensing electrode
113‧‧‧第三感測電極 113‧‧‧ Third sensing electrode
114‧‧‧第四感測電極 114‧‧‧fourth sensing electrode
20‧‧‧引線 20‧‧‧ lead
30‧‧‧感測位置計算單元 30‧‧‧Sensing position calculation unit
40‧‧‧觸控顯示裝置 40‧‧‧Touch display device
50‧‧‧觸控模組 50‧‧‧Touch Module
60‧‧‧顯示模組 60‧‧‧ display module
a‧‧‧第一邊 A‧‧‧ first side
b‧‧‧第二邊 B‧‧‧ second side
c‧‧‧第三邊 C‧‧‧ third side
d‧‧‧第四邊 D‧‧‧ fourth side
e‧‧‧第五邊 E‧‧‧ fifth side
f‧‧‧第六邊 F‧‧‧ sixth side
g‧‧‧第七邊 G‧‧‧ seventh side
i‧‧‧第八邊 I‧‧‧ eighth side
j‧‧‧第九邊 J‧‧‧ ninth side
k‧‧‧第十邊 K‧‧‧10th side
A‧‧‧第一端 A‧‧‧ first end
B‧‧‧第二端 B‧‧‧ second end
C‧‧‧第三端 C‧‧‧ third end
D‧‧‧第四端 D‧‧‧ fourth end
Y1‧‧‧第一曲線 Y1‧‧‧ first curve
Y2‧‧‧第二曲線 Y2‧‧‧ second curve
A1、A2‧‧‧觸摸點 A1, A2‧‧‧ touch points
Q1、Q2‧‧‧觸摸點的中心位置 Center position of Q1, Q2‧‧‧ touch points
圖1為觸控感測電極結構第一實施方式的平面示意圖。 1 is a schematic plan view showing a first embodiment of a touch sensing electrode structure.
圖2為如圖1所示其中一對感測電極單元接收觸控時的示意圖。 FIG. 2 is a schematic diagram of a pair of sensing electrode units as shown in FIG. 1 when receiving a touch.
圖3~4為觸控感測電極結構二變更實施方式的平面示意圖。 3 to 4 are schematic plan views showing a modified embodiment of the touch sensing electrode structure.
圖5為具有如圖1所示觸控感測電極結構的顯示裝置的結構示意圖。 FIG. 5 is a schematic structural view of a display device having a touch sensing electrode structure as shown in FIG. 1. FIG.
請參閱圖1,其為觸控感測電極結構10的平面示意圖。觸控感測電極結構10包括複數感測電極單元11,感測電極單元11沿第一方向(X軸方向)延伸形成,並沿第二方向(Y軸方向)依次相鄰地排列設置。其中,該第一方向與第二方向在同一平面內相互垂直。本實施方式中,感測電極單元11基本呈矩形形狀。 Please refer to FIG. 1 , which is a schematic plan view of the touch sensing electrode structure 10 . The touch sensing electrode structure 10 includes a plurality of sensing electrode units 11 which are formed to extend in a first direction (X-axis direction) and are arranged adjacently in the second direction (Y-axis direction). Wherein, the first direction and the second direction are perpendicular to each other in the same plane. In the present embodiment, the sensing electrode unit 11 has a substantially rectangular shape.
每個感測電極單元11包括相鄰設置的第一感測電極111、第二感測電極112、第三感測電極113與第四感測電極114,該四個感測電極分別相互電性分離,且每個感測電極單元11沿第二方向間隔設置於同一表面。 Each of the sensing electrode units 11 includes an adjacent first sensing electrode 111, a second sensing electrode 112, a third sensing electrode 113, and a fourth sensing electrode 114. The four sensing electrodes are electrically connected to each other. Separated, and each of the sensing electrode units 11 is spaced apart from the same surface in the second direction.
本實施方式中,第一感測電極111具有第一端A、第二端B、與第一方向平行的第一邊a、與第二方向平行的第二邊b、以及相對於第一邊a及第二邊b傾斜設置的第三邊c。該第一邊a自第一端A沿第一方向延伸至第二端B。第二邊b為在第一端A沿第二方向延伸而成。其中,該第一感測電極111沿第二方向的寬度在第一方向上自第一端A向第二端B逐漸減小。 In this embodiment, the first sensing electrode 111 has a first end A, a second end B, a first side a parallel to the first direction, a second side b parallel to the second direction, and the first side a and the third side c of the second side b is inclined. The first side a extends from the first end A in the first direction to the second end B. The second side b is formed to extend in the second direction at the first end A. The width of the first sensing electrode 111 in the second direction gradually decreases from the first end A to the second end B in the first direction.
第二感測電極112具有第三端C、第四端D、與第一方向平行的第四邊d、與第二方向平行的第五邊e,以及相對於第三邊d及第四邊e傾斜設置的第六邊f。 The second sensing electrode 112 has a third end C, a fourth end D, a fourth side d parallel to the first direction, a fifth side e parallel to the second direction, and a third side d and a fourth side e The sixth side of the tilt setting f.
其中,第三端C與第一端A相鄰且相對設置,並位於平行於第一方向的同一直線上;第四端D與第二端B相鄰且相對設置,也位於平行於第一方向的同一直線上。第四邊d的長度等於第一邊a的長度,並間隔第二邊b的長度自第三端C平行延伸至第四端D;第五邊d的長度等於第二邊b的長度,並間隔第二邊b的長度自第四端D 延伸至第二端B。第一邊a、第二邊b、第四邊d以及第五邊e構成該感測電極單元11的四個矩形邊。 Wherein, the third end C is adjacent to and opposite to the first end A, and is located on a same line parallel to the first direction; the fourth end D is adjacent to and opposite to the second end B, and is also located parallel to the first The direction is on the same line. The length of the fourth side d is equal to the length of the first side a, and the length of the second side b is parallel from the third end C to the fourth end D; the length of the fifth side d is equal to the length of the second side b, and The length of the second side b is spaced from the fourth end D Extends to the second end B. The first side a, the second side b, the fourth side d, and the fifth side e constitute four rectangular sides of the sensing electrode unit 11.
該第二感測電極112沿第二方向的寬度在第一方向上自第三端C向第四端D逐漸增大。 The width of the second sensing electrode 112 in the second direction gradually increases from the third end C to the fourth end D in the first direction.
第三感測電極113夾設於該第一感測電極111的第二端B與該第二感測電極112的該第三端C之間,並包括第七邊g與第八邊i。第三感測電極113與第一感測電極111相鄰,且經由第一曲線Y1的分割區進行分割,位於該第一曲線Y1分割區兩側的邊緣為第一感測電極111的第三邊c與第三感測電極113的第七邊g,該第三邊c與第七邊g均具有第一曲線Y1的形狀。第三感測電極113的第八邊i為位於該第二端B與該第三端C之間的直線,且該第八邊i與該第七邊g圍合成封閉圖形的第三感測電極113。 The third sensing electrode 113 is interposed between the second end B of the first sensing electrode 111 and the third end C of the second sensing electrode 112, and includes a seventh edge g and an eighth edge i. The third sensing electrode 113 is adjacent to the first sensing electrode 111 and is divided by the dividing area of the first curve Y1. The edge on both sides of the first curve Y1 dividing area is the third of the first sensing electrode 111. The side c and the seventh side g of the third sensing electrode 113 each have a shape of the first curve Y1. The eighth side i of the third sensing electrode 113 is a straight line between the second end B and the third end C, and the eighth side i and the seventh side g are combined to form a third pattern of the closed pattern. Electrode 113.
第一感測電極111與第二感測電極112本身為非對稱結構,並且該兩個感測電極之間在第一方向及第二方向上也不對稱。 The first sensing electrode 111 and the second sensing electrode 112 are themselves asymmetric structures, and the two sensing electrodes are also asymmetric in the first direction and the second direction.
第三感測電極113本身為非對稱結構,且第三感測電極113與第一感測電極111在第一方向和該第二方向均不對稱,同時,該第三感測電極113與該第二感測電極112在該第一方向與該第二方向上均不對稱。進一步,該第一感測電極111與該第三感測電極113圍合成一基本封閉的直角三角形,其中,第一感測電極111的第一邊a與第二邊b為該直角三角形的直角邊,該第三感測電極113的第八邊i為該直角三角形的斜邊。 The third sensing electrode 113 itself has an asymmetrical structure, and the third sensing electrode 113 and the first sensing electrode 111 are both asymmetric in the first direction and the second direction, and the third sensing electrode 113 and the The second sensing electrode 112 is asymmetrical in both the first direction and the second direction. Further, the first sensing electrode 111 and the third sensing electrode 113 form a substantially closed right triangle, wherein the first side a and the second side b of the first sensing electrode 111 are right angles of the right triangle The eighth side i of the third sensing electrode 113 is a hypotenuse of the right triangle.
該第一曲線Y1自第三端C開始沿第一方向且以在第二方向上逐漸靠近第一邊a的趨勢延伸至第二端B,該第一曲線Y1的斜率逐漸減 小。 The first curve Y1 extends from the third end C in the first direction and gradually approaches the first side a in the second direction to the second end B, and the slope of the first curve Y1 is gradually decreased. small.
具體地,該第一曲線Y1可由計算式(1)進行表示。 Specifically, the first curve Y1 can be expressed by the calculation formula (1).
Y1=X2+aX (1) Y 1 =X 2 +aX (1)
其中,X表示該第一曲線Y1上任意一點在第一方向(X軸方向)的座標,Y表示該點在第二方向(Y軸方向)的座標,a表示已知係數。 Here, X represents a coordinate of any point on the first curve Y 1 in the first direction (X-axis direction), Y represents a coordinate of the point in the second direction (Y-axis direction), and a represents a known coefficient.
第四感測電極114也夾設於該第一感測電極111的第二端B與該第二感測電極112的該第三端C之間,並包括第九邊j與第十邊k。第四感測電極114分別與第二感測電極112及第三感測電極113相鄰,並且該第四感測電極114與第二感測電極112經由第二曲線Y2的分割區進行分割,位於該第二曲線Y2分割區兩側的邊緣為第二感測電極112的第六邊f與第四感測電極114的第十邊k,該第六邊f與第十邊k均具有第二曲線Y2的形狀。第四感測電極114的第九邊j為位於該第二端B與該第三端C之間的直線,且該第九邊i與該第十邊g圍合成一封閉圖形。第四感測電極114本身為非對稱結構,並且二者之間在第一方向及第二方向上亦不對稱。 The fourth sensing electrode 114 is also interposed between the second end B of the first sensing electrode 111 and the third end C of the second sensing electrode 112, and includes a ninth side j and a tenth side k . The fourth sensing electrode 114 is adjacent to the second sensing electrode 112 and the third sensing electrode 113, respectively, and the fourth sensing electrode 114 and the second sensing electrode 112 are divided by the dividing area of the second curve Y2. An edge located on both sides of the second curved Y2 partition is a sixth side f of the second sensing electrode 112 and a tenth side k of the fourth sensing electrode 114, and the sixth side f and the tenth side k both have a first The shape of the two curve Y2. The ninth side j of the fourth sensing electrode 114 is a straight line between the second end B and the third end C, and the ninth side i and the tenth side g are combined to form a closed figure. The fourth sensing electrode 114 itself has an asymmetrical structure and is also asymmetrical between the two in the first direction and the second direction.
進一步,該第二感測電極112與該第四感測電極114圍合成一基本封閉的直角三角形,其中,第二感測電極111的第四邊d與第五邊e為該直角三角形的直角邊,該第四感測電極114的第九邊j為該直角三角形的斜邊,同時,該第一、第二、第三、第四感測電極111、112、113、114共同圍合成矩形的該感測電極單元11,且該兩個直角三角形的直角邊為該感測電極單元11的矩形邊。 Further, the second sensing electrode 112 and the fourth sensing electrode 114 form a substantially closed right triangle, wherein the fourth side d and the fifth side e of the second sensing electrode 111 are right angles of the right triangle The ninth side j of the fourth sensing electrode 114 is a hypotenuse of the right triangle, and the first, second, third, and fourth sensing electrodes 111, 112, 113, and 114 are combined to form a rectangle. The sensing electrode unit 11 and the right-angled sides of the two right-angled triangles are rectangular sides of the sensing electrode unit 11.
優選地,第一、第二、第三、第四感測電極111、112、113、114兩兩之間在第一方向及第二方向上皆不對稱。 Preferably, the first, second, third, and fourth sensing electrodes 111, 112, 113, and 114 are both asymmetric in the first direction and the second direction.
該第二曲線Y2自第三端C開始沿第一方向且在以第二方向上逐漸遠離第四邊d的趨勢延伸至第二端B,該第二曲線Y2的斜率逐漸增大。該第二曲線Y2可由計算式(2)進行表示。 The second curve Y2 extends from the third end C in the first direction and gradually away from the fourth side d in the second direction to the second end B, and the slope of the second curve Y2 gradually increases. This second curve Y2 can be expressed by the calculation formula (2).
Y2=X2+bX (2) Y 2 =X 2 +bX (2)
其中,X表示該第二曲線Y2上任意一點在第一方向(X軸方向)的座標,Y表示該點在第二方向(Y軸方向)的座標,b表示已知係數。 Here, X represents a coordinate of any point on the second curve Y 2 in the first direction (X-axis direction), Y represents a coordinate of the point in the second direction (Y-axis direction), and b represents a known coefficient.
由此可知,感測電極單元11中,每個感測電極均包括第一曲線Y1或者第二曲線Y2形狀的邊緣,由此,相較於直線型的邊緣,每一個感測電極接收到處碰後電容變化程度提高,從而更為準確地勢別觸控位置。 It can be seen that, in the sensing electrode unit 11, each sensing electrode includes an edge of a shape of a first curve Y1 or a second curve Y2, whereby each sensing electrode receives a touch compared to a straight edge. The degree of change in the post-capacitance is increased, so that the touch position is more accurately.
進一步,每一感測電極單元11通過多條引線20自第一端A、第二端B、第三端C以及第四端D與感測位置計算單元30進行電性連接,感測位置計算單元30通過感測電極單元11上電容的變化計算觸摸位置。 Further, each sensing electrode unit 11 is electrically connected to the sensing position calculating unit 30 from the first end A, the second end B, the third end C, and the fourth end D through a plurality of lead wires 20, and the sensing position calculation is performed. The unit 30 calculates the touch position by sensing the change in capacitance on the electrode unit 11.
具體地,第一感測電極111的第一、第三感測電極111、113在第一端A與第三端C分別通過引線20連接至感測位置計算單元30,第二感測電極112的第二、第四感測電極112、114在第二端B與第四端D分別通過引線20連接至感測位置計算單元30。 Specifically, the first and third sensing electrodes 111, 113 of the first sensing electrode 111 are connected to the sensing position calculating unit 30 through the lead 20 at the first end A and the third end C, respectively, and the second sensing electrode 112 The second and fourth sensing electrodes 112, 114 are connected to the sensing position calculating unit 30 through the lead wires 20 at the second end B and the fourth end D, respectively.
請參閱圖2,其為一個感測電極單元11接收到複數觸摸操作時的位置示意圖,本實施方式中,感測電極單元11以及感測電極沿Y軸方向的投影長度h的範圍為1-10mm。該觸控感測電極結構10的其中一個感測電極單元11同時接收到2個觸摸點A1、A2。 Please refer to FIG. 2 , which is a schematic diagram of a position when the sensing electrode unit 11 receives a plurality of touch operations. In the present embodiment, the range of the projection length h of the sensing electrode unit 11 and the sensing electrode along the Y-axis direction is 1- 10mm. One of the sensing electrode units 11 of the touch sensing electrode structure 10 simultaneously receives two touch points A1, A2.
感測位置計算單元30藉由引線20分別接收到該第一、第三感測電 極111、113以及第四、第二感測電極114、112的電容變化量C1、C2、C3、C4。 The sensing position calculation unit 30 receives the first and third sensing powers by the lead wires 20 respectively. The capacitances C1, C2, C3, and C4 of the poles 111 and 113 and the fourth and second sensing electrodes 114 and 112.
感測電極單元11中每一個感測電極的電容變化值的計算式為:C=ε *S/d,其中,ε為介電常數,S為該感測電極接收到觸摸的面積,d為感測電極與實施觸摸操作的導電物體間的距離,為已知常數。 The calculation formula of the capacitance change value of each of the sensing electrodes in the sensing electrode unit 11 is: C=ε*S/d, where ε is a dielectric constant, S is an area where the sensing electrode receives a touch, and d is The distance between the sensing electrode and the conductive object that performs the touch operation is a known constant.
利用該第一、三、四、二感測電極111、113、114、112感測獲得的電容變化值C1、C2、C3、C4,並通過計算式C=ε *S/d,獲得S1、S2、S3、S4,其中,S1、S2、S3、S4分別表示第一、三、四、二感測電極111、113、114、112接收觸摸操作的面積。 The capacitance change values C1, C2, C3, and C4 obtained by the first, third, fourth, and second sensing electrodes 111, 113, 114, and 112 are sensed, and S1 is obtained by calculating a formula C=ε*S/d. S2, S3, and S4, wherein S1, S2, S3, and S4 respectively indicate areas where the first, third, fourth, and second sensing electrodes 111, 113, 114, and 112 receive touch operations.
進一步,依據該四個感測電極上觸摸點的面積獲得以下4個計算式:S1+S2=[(L-x1)*h*w1]/L+[(L-x2)*h*w2]/L (3) Further, according to the area of the touched points on the four sensing electrodes, the following four calculation formulas are obtained: S1+S2=[(L-x1)*h*w1]/L+[(L-x2)*h*w2]/ L (3)
S2={[(L-x1)2+a(L-X1)]hw1+[(L-x2)2+a(L-X2)]hw2}/L (4) S2={[(L-x1) 2 +a(L-X1)]hw1+[(L-x2)2+a(L-X2)]hw2}/L (4)
S3+S4=x1*h*w1/L+x2*h*w2/L (5) S3+S4=x1*h*w1/L+x2*h*w2/L (5)
S4=[(x1 2+bx1)hw1+(x2 2+bx2)hw2]/L (6) S4=[(x 1 2 +bx 1 )hw1+(x 2 2 +bx 2 )hw2]/L (6)
上述(3)、(4)、(5)、(6)四個計算式中,L表示各感測電極在X軸方向的投影長度,h表示各感測電極單元11以及感測電極沿Y軸方向的投影長度,x1、x2表示觸摸點A1、A2中心位置O1、O2在距離該感測電極其中一邊緣在X軸方向投影的長度,w1與w2表示觸摸點在X軸上的投影寬度。 In the above four calculation formulas (3), (4), (5), and (6), L represents the projection length of each sensing electrode in the X-axis direction, and h represents each sensing electrode unit 11 and the sensing electrode along Y. The projection length in the axial direction, x 1 , x 2 represents the length of the touch point A1, A2 center position O1, O2 projected in the X-axis direction from one edge of the sensing electrode, and w1 and w2 indicate the touch point on the X-axis. Projection width.
利用上述(3)、(4)、(5)、(6)四個計算式該計算出觸摸點A1、A2 中心點距離該感測電極其中一邊緣的距離x1、x2。從而獲得觸摸點A1、A2在X軸方向的位置。 The touch points A1 and A2 are calculated by using the above four (3), (4), (5), and (6) calculation formulas. The center point is a distance x1, x2 from one of the edges of the sensing electrode. Thereby, the positions of the touched points A1, A2 in the X-axis direction are obtained.
需要說明的是,觸控點A1、A2在該四個感測電極上的面積是以平行四邊形的面積來進行計算的。 It should be noted that the area of the touch points A1 and A2 on the four sensing electrodes is calculated by the area of the parallelogram.
另外,藉由分析接收到電容變化的引線位置,亦即分析電容值發生變化的感測電極的位置,即可獲得觸摸點A1、A2在Y軸方向上的位置。 Further, by analyzing the position of the lead receiving the change in capacitance, that is, the position of the sensing electrode whose capacitance value is changed, the position of the touch points A1, A2 in the Y-axis direction can be obtained.
優選地,感測電極單元11以及四個感測電極沿Y軸方向的投影長度h的最大值小於觸摸點於Y軸方向的投影長度。 Preferably, the maximum value of the projection length h of the sensing electrode unit 11 and the four sensing electrodes in the Y-axis direction is smaller than the projection length of the touch point in the Y-axis direction.
可變更地,請參閱圖3或者圖4,其為本發明觸控感測電極結構兩個變更實施方式中的平面示意圖,觸控面板10與10的結構與第一實施方式基本相同,區別僅在於,如圖3所示,感測電極單元11中也可以僅包括經由第一曲線Y1的分割帶分割第一感測電極111與第三感測電極113,而第二感測電極112與第四感測電極114為一整體,並未由第二曲線Y2的分割帶進行分割;或者如圖4所示,感測電極單元11僅包括經由第二曲線Y1的分割帶分割第二感測電極112與第四感測電極114,而第三感測電極113與第一感測電極111合併為一整體,並未由第一曲線Y1的分割帶進行分割。 For example, FIG. 3 or FIG. 4 is a schematic plan view showing two modified embodiments of the touch sensing electrode structure according to the present invention. The structures of the touch panels 10 and 10 are basically the same as those of the first embodiment, and the difference is only As shown in FIG. 3, the sensing electrode unit 11 may also include only the first sensing electrode 111 and the third sensing electrode 113 divided by the first band Y1, and the second sensing electrode 112 and the second sensing electrode 112 The four sensing electrodes 114 are integrated and are not divided by the dividing strip of the second curve Y2; or as shown in FIG. 4, the sensing electrode unit 11 includes only the second sensing electrode divided by the dividing strip of the second curve Y1. 112 and the fourth sensing electrode 114, and the third sensing electrode 113 and the first sensing electrode 111 are combined as a whole, and are not divided by the dividing band of the first curve Y1.
該感測電極單元11的形狀也可以為平行四邊形,該第一感測電極111、第二感測電極112的其中一條直角邊與斜邊構成該感測電極單元的平行四邊形的邊,該第一、第二感測電極111、112的其中一條直角邊相鄰且相對設置。 The shape of the sensing electrode unit 11 may also be a parallelogram. One of the right and left sides of the first sensing electrode 111 and the second sensing electrode 112 forms a parallelogram of the sensing electrode unit. 1. One of the right sensing edges of the second sensing electrodes 111, 112 is adjacent and oppositely disposed.
相較於先前技術,感測電極單元11中,至少包括三個形狀在第一 方向與第二方向上均不對稱的感測電極,該感測電極單元11長度延伸方向上具有複數觸控點時,能夠對應產生不同的電容變化,進而識別該複數觸摸點位置。 Compared with the prior art, the sensing electrode unit 11 includes at least three shapes at the first The sensing electrode is asymmetrical in the direction and the second direction. When the sensing electrode unit 11 has a plurality of touch points in the extending direction of the length of the sensing electrode unit 11, different capacitance changes can be generated correspondingly, thereby identifying the position of the plurality of touch points.
請參閱圖5,其為具有如圖1所示觸控感測電極結構的觸控顯示裝置的結構示意圖,觸控顯示裝置40包括具有觸控感測電極結構10的觸控模組50與顯示模組60,可以理解,該觸控感測電極結構10為設置於一透明基板(未標示)上,顯示模組60用於顯示圖像,本實施方式中,顯示模組60可採用一液晶顯示模組來實現。觸控感測電極結構10設置於該顯示模組60的一側,實現觸控位置檢測與圖像顯示。 Please refer to FIG. 5 , which is a structural diagram of a touch display device having a touch sensing electrode structure as shown in FIG. 1 . The touch display device 40 includes a touch module 50 and a display having a touch sensing electrode structure 10 . The module 60 can be understood that the touch sensing electrode structure 10 is disposed on a transparent substrate (not labeled), and the display module 60 is used to display an image. In this embodiment, the display module 60 can adopt a liquid crystal. Display module to achieve. The touch sensing electrode structure 10 is disposed on one side of the display module 60 to implement touch position detection and image display.
綜上所述,本發明符合發明專利要件,爰依法提出專利申請。惟,以上該者僅為本發明之較佳實施方式,舉凡熟悉本案技藝之人士,在援依本案創作精神所作之等效修飾或變化,皆應包含於以下之申請專利範圍內。 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and those skilled in the art will be able to include the equivalent modifications or variations in the spirit of the present invention.
10‧‧‧觸控感測電極結構 10‧‧‧Touch sensing electrode structure
11‧‧‧感測電極單元 11‧‧‧Sensor electrode unit
111‧‧‧第一感測電極 111‧‧‧First sensing electrode
112‧‧‧第二感測電極 112‧‧‧Second sensing electrode
113‧‧‧第三感測電極 113‧‧‧ Third sensing electrode
114‧‧‧第四感測電極 114‧‧‧fourth sensing electrode
20‧‧‧引線 20‧‧‧ lead
30‧‧‧感測位置計算單元 30‧‧‧Sensing position calculation unit
a‧‧‧第一邊 A‧‧‧ first side
b‧‧‧第二邊 B‧‧‧ second side
c‧‧‧第三邊 C‧‧‧ third side
d‧‧‧第四邊 D‧‧‧ fourth side
e‧‧‧第五邊 E‧‧‧ fifth side
f‧‧‧第六邊 F‧‧‧ sixth side
g‧‧‧第七邊 G‧‧‧ seventh side
i‧‧‧第八邊 I‧‧‧ eighth side
j‧‧‧第九邊 J‧‧‧ ninth side
k‧‧‧第十邊 K‧‧‧10th side
A‧‧‧第一端 A‧‧‧ first end
B‧‧‧第二端 B‧‧‧ second end
C‧‧‧第三端 C‧‧‧ third end
D‧‧‧第四端 D‧‧‧ fourth end
Y1‧‧‧第一曲線 Y1‧‧‧ first curve
Y2‧‧‧第二曲線 Y2‧‧‧ second curve
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CN104461129A (en) * | 2014-11-20 | 2015-03-25 | 业成光电(深圳)有限公司 | Touch panel and touch display device |
CN104866150B (en) * | 2015-04-29 | 2018-12-11 | 业成光电(深圳)有限公司 | touch module |
WO2019113725A1 (en) * | 2017-12-11 | 2019-06-20 | 深圳市汇顶科技股份有限公司 | Touch controller, apparatus, terminal and touch control method |
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CN201336029Y (en) * | 2009-01-16 | 2009-10-28 | 汕头超声显示器(二厂)有限公司 | Capacitance touch screen |
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