TWI620108B - Touch panel - Google Patents
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- TWI620108B TWI620108B TW106131052A TW106131052A TWI620108B TW I620108 B TWI620108 B TW I620108B TW 106131052 A TW106131052 A TW 106131052A TW 106131052 A TW106131052 A TW 106131052A TW I620108 B TWI620108 B TW I620108B
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Abstract
一種觸控面板，包括基板、橋接電極、第一導電圖案、第一絕緣圖案、感應電極以及第二感應電極串列。橋接電極在第二方向上設置於兩第一導電圖案之間。第一絕緣圖案分別對應設置於橋接電極上，且部分覆蓋第一導電圖案。橋接電極分別與兩相鄰之感應電極電連接，且感應電極與橋接電極形成第一感應電極串列沿第一方向延伸。第二感應電極串列沿第二方向設置，其中第二感應電極串列包括橋接部以及感應部，橋接部於垂直投影於基板的方向上與兩相鄰之第一導電圖案重疊並電性連接，且感應部分別設置於沿第二方向相鄰之橋接部之間並電連接。 A touch panel includes a substrate, a bridge electrode, a first conductive pattern, a first insulation pattern, a sensing electrode, and a second sensing electrode string. The bridge electrode is disposed between the two first conductive patterns in the second direction. The first insulation patterns are respectively disposed on the bridge electrodes and partially cover the first conductive patterns. The bridge electrodes are electrically connected to the two adjacent sensing electrodes, respectively, and the sensing electrodes and the bridge electrodes form a first sensing electrode string extending in the first direction. The second sensing electrode string is disposed along the second direction, wherein the second sensing electrode series includes a bridge portion and a sensing portion, and the bridge portion is overlapped and electrically connected to the two adjacent first conductive patterns in a direction perpendicularly projected on the substrate And the sensing portions are respectively disposed between the adjacent bridge portions in the second direction and are electrically connected.
Description
本發明係關於一種觸控面板，尤指一種具有避免感應電極串列之導電材料剝離或斷線的設計的觸控面板。 The present invention relates to a touch panel, and more particularly to a touch panel having a design for avoiding peeling or disconnection of a conductive material of a series of sensing electrodes.
觸控面板由於具有人機互動的特性，已逐漸取代鍵盤而被廣泛應用於電子裝置的輸入介面上。近年來，隨著消費性電子產品的應用面發展越來越廣，將觸控面板與顯示面板結合而形成觸控顯示面板之應用產品也越來越多，包括行動電話(mobile phone)、衛星導航系統(GPS navigator system)、平板電腦(tablet PC)以及筆記型電腦(laptop PC)等。 Touch panels have been widely used in the input interface of electronic devices because of their human-computer interaction characteristics. In recent years, as the application of consumer electronic products has become more and more widespread, there are more and more applications that combine touch panels and display panels to form touch display panels, including mobile phones and satellites. Navigation system (GPS navigator system), tablet PC (tablet PC), and laptop (laptop PC).
由於製作觸控顯示面板過程中，製程的溫度係需要受到控制而使得製作過程的溫度不會過高，導致觸控顯示面板中的導電材料(例如金屬或透明導電材料)的機械性質較差，因此當觸控電極結構具有較大的高低差時，導電材料很容易發生剝離(Peeling)、裂痕(crack)或斷線的問題，使得後續製程中的藥液(例如蝕刻劑或光阻剝離劑)會從導電材料損壞的位置下滲，進而影響產品的良率及可靠度。 During the process of manufacturing the touch display panel, the temperature of the process needs to be controlled so that the temperature of the manufacturing process is not too high, resulting in poor mechanical properties of the conductive material (such as metal or transparent conductive material) in the touch display panel. When the touch electrode structure has a large height difference, the conductive material is prone to Peeling, cracking or wire breakage, so that the liquid medicine in the subsequent process (for example, an etchant or a photoresist stripper) It will infiltrate from the location where the conductive material is damaged, which will affect the yield and reliability of the product.
本發明之目的之一在於提供一種觸控面板，以避免感應電極串列之導電材料發生剝離或斷線的問題。 One of the objects of the present invention is to provide a touch panel to avoid the problem of peeling or disconnection of the conductive material of the sensing electrode string.
本發明之一實施例提供一種觸控面板，包括一基板、複數個橋接電極、複數個第一導電圖案、複數個第一絕緣圖案、複數個感應電極以及複數條第二感應電極串列。基板具有一感測區與一周邊區，其中周邊區設置於感測區至少一側。橋接電極設置於感測區內之基板上，其中各橋接電極實質上沿一第一方向延伸。第一導電圖案設置於感測區內之基板上，其中各橋接電極在一第二方向上設置於兩第一導電圖案之間且各該橋接電極與各該第一導電圖案電性分離。第一絕緣圖案分別對應設置於橋接電極上，且部分覆蓋第一導電圖案。感應電極設置於感測區內之基板上，其中各橋接電極分別與兩相鄰之感應電極電性連接，且感應電極與橋接電極形成複數條第一感應電極串列沿第一方向延伸。第二感應電極串列沿第二方向設置於感測區內之基板上，並與第一感應電極串列交錯設置，其中各第二感應電極串列包括複數個橋接部以及複數個感應部，橋接部分別對應設置於第一絕緣圖案上並分別與對應之橋接電極於一垂直投影於基板的方向上交錯設置，且各橋接部於垂直投影於基板的方向上與兩相鄰之第一導電圖案重疊並電性連接，各感應部分別設置於沿第二方向相鄰之橋接部之間並電性連接。 An embodiment of the present invention provides a touch panel including a substrate, a plurality of bridge electrodes, a plurality of first conductive patterns, a plurality of first insulation patterns, a plurality of sensing electrodes, and a plurality of second sensing electrode strings. The substrate has a sensing area and a peripheral area, wherein the peripheral area is disposed on at least one side of the sensing area. The bridge electrodes are disposed on the substrate in the sensing region, wherein each of the bridge electrodes extends substantially in a first direction. The first conductive pattern is disposed on the substrate in the sensing region, wherein each of the bridge electrodes is disposed between the two first conductive patterns in a second direction and each of the bridge electrodes is electrically separated from each of the first conductive patterns. The first insulation patterns are respectively disposed on the bridge electrodes and partially cover the first conductive patterns. The sensing electrodes are disposed on the substrate in the sensing region, wherein each of the bridge electrodes is electrically connected to two adjacent sensing electrodes, and the sensing electrodes and the bridge electrodes form a plurality of first sensing electrode strings extending in the first direction. The second sensing electrode string is disposed on the substrate in the sensing region along the second direction, and is arranged in a staggered manner with the first sensing electrode serial, wherein each of the second sensing electrode serials includes a plurality of bridge portions and a plurality of sensing portions. The bridge portions are respectively disposed on the first insulation pattern and are respectively staggered with the corresponding bridge electrodes in a direction perpendicularly projected on the substrate, and the bridge portions are vertically projected in the direction of the substrate and the two adjacent first conductive layers The patterns are overlapped and electrically connected, and the sensing portions are respectively disposed between the adjacent bridge portions in the second direction and electrically connected.
本發明之另一實施例提供一種觸控面板，包括一基板、複數個橋接電極、複數個第一絕緣圖案、複數個感應電極以及複數條第二感應電極串列。基板具有一感測區與一周邊區，其中周邊區設置於感測區至少一側。橋接電極設置於感測區內之基板上，其中各橋接電極實質上沿一第一方向延伸。第一絕緣圖案設置於感測區內，其中各第一絕緣圖案分別對應各橋接電極設置。感應 電極設置於感測區內之基板上，其中各橋接電極分別與兩相鄰之感應電極電性連接，且感應電極與橋接電極形成複數條第一感應電極串列沿第一方向延伸。第二感應電極串列沿一第二方向設置於感測區內之基板上，並與第一感應電極串列交錯設置，其中各第二感應電極串列包括複數個橋接部以及複數個感應部，橋接部分別對應設置於第一絕緣圖案上並分別與對應之橋接電極於一垂直投影於基板的方向上交錯設置，且各感應部分別設置於沿第二方向上相鄰之橋接部之間並電性連接，各感應部具有一開口鄰近對應之橋接部之一端設置，第二方向不同於第一方向，且開口與橋接電極在垂直投影於基板的方向上不重疊。 Another embodiment of the present invention provides a touch panel including a substrate, a plurality of bridge electrodes, a plurality of first insulation patterns, a plurality of sensing electrodes, and a plurality of second sensing electrode strings. The substrate has a sensing area and a peripheral area, wherein the peripheral area is disposed on at least one side of the sensing area. The bridge electrodes are disposed on the substrate in the sensing region, wherein each of the bridge electrodes extends substantially in a first direction. The first insulation pattern is disposed in the sensing region, wherein each of the first insulation patterns is respectively disposed corresponding to each of the bridge electrodes. induction The electrodes are disposed on the substrate in the sensing region, wherein each of the bridge electrodes is electrically connected to two adjacent sensing electrodes, and the sensing electrode and the bridge electrode form a plurality of first sensing electrode strings extending in the first direction. The second sensing electrode string is disposed on the substrate in the sensing region along a second direction, and is arranged in a staggered manner with the first sensing electrode series, wherein each of the second sensing electrode series includes a plurality of bridge portions and a plurality of sensing portions The bridge portions are respectively disposed on the first insulation pattern and are respectively staggered with the corresponding bridge electrodes in a direction perpendicularly projected on the substrate, and the sensing portions are respectively disposed between the bridge portions adjacent in the second direction. And electrically connected, each sensing portion has an opening disposed adjacent to one end of the corresponding bridge portion, the second direction is different from the first direction, and the opening and the bridge electrode do not overlap in a direction perpendicularly projected on the substrate.
1A、1B、1C、2、3、4、5‧‧‧觸控面板 1A, 1B, 1C, 2, 3, 4, 5‧‧‧ touch panels
10‧‧‧第一感應電極串列 10‧‧‧First induction electrode series
20‧‧‧第二感應電極串列 20‧‧‧Second sensing electrode series
100‧‧‧基板 100‧‧‧Substrate
100S‧‧‧感測區 100S‧‧‧Sensing area
100P‧‧‧周邊區 100P‧‧‧ surrounding area
102B‧‧‧橋接電極 102B‧‧‧Bridge electrode
102S‧‧‧感應電極 102S‧‧‧Induction electrode
104‧‧‧第一導電圖案 104‧‧‧First conductive pattern
106‧‧‧第一絕緣圖案 106‧‧‧First insulation pattern
106S‧‧‧側面 106S‧‧‧ side
108B‧‧‧橋接部 108B‧‧‧Bridge
108S‧‧‧感應部 108S‧‧‧Induction Department
110‧‧‧導線 110‧‧‧Wire
112‧‧‧連接線 112‧‧‧Connecting line
114‧‧‧第二導電圖案 114‧‧‧Second conductive pattern
114S‧‧‧側面 114S‧‧‧ side
116‧‧‧第二絕緣圖案 116‧‧‧Second insulation pattern
118‧‧‧開口 118‧‧‧ openings
D1‧‧‧第一方向 D1‧‧‧ first direction
D2‧‧‧第二方向 D2‧‧‧ second direction
W1‧‧‧第一寬度 W1‧‧‧ first width
W2‧‧‧第二寬度 W2‧‧‧ second width
Z‧‧‧方向 Z‧‧‧ direction
第1圖繪示了本發明第一實施例之觸控面板的上視示意圖。 FIG. 1 is a top plan view of a touch panel according to a first embodiment of the present invention.
第2圖係沿第1圖之剖線A-A’與剖線B-B’繪示之觸控面板的剖面示意圖。 Fig. 2 is a cross-sectional view showing the touch panel taken along line A-A' and line B-B' of Fig. 1.
第3圖繪示了本發明第一實施例之第一變化實施例之觸控面板周邊區的剖面示意圖。 FIG. 3 is a cross-sectional view showing a peripheral region of a touch panel according to a first modified embodiment of the first embodiment of the present invention.
第4圖繪示了本發明第一實施例之第二變化實施例之觸控面板周邊區的剖面示意圖。 4 is a cross-sectional view showing a peripheral region of a touch panel according to a second modified embodiment of the first embodiment of the present invention.
第5圖繪示了本發明第二實施例之觸控面板的上視示意圖。 FIG. 5 is a top view of the touch panel of the second embodiment of the present invention.
第6圖係沿第5圖之剖線C-C’繪示之觸控面板的剖面示意圖。 Figure 6 is a cross-sectional view of the touch panel taken along line C-C' of Figure 5.
第7圖繪示了本發明第三實施例之觸控面板的上視示意圖。 FIG. 7 is a top plan view of a touch panel according to a third embodiment of the present invention.
第8圖係沿第7圖之剖線D-D’繪示之觸控面板的剖面示意圖。 Figure 8 is a cross-sectional view of the touch panel taken along line D-D' of Figure 7.
第9圖繪示了本發明第四實施例之觸控面板的上視示意圖。 FIG. 9 is a top plan view of a touch panel according to a fourth embodiment of the present invention.
第10圖係沿第9圖之剖線E-E’與剖線F-F’繪示之觸控面板的剖面示意圖。 Fig. 10 is a cross-sectional view showing the touch panel taken along the line E-E' and the line F-F' of Fig. 9.
第11圖繪示了本發明第五實施例之觸控面板的上視示意圖。 11 is a top plan view of a touch panel according to a fifth embodiment of the present invention.
第12圖係沿第11圖之剖線G-G’繪示之觸控面板的剖面示意圖。 Fig. 12 is a cross-sectional view showing the touch panel taken along line G-G' of Fig. 11.
為使熟悉本發明所屬技術領域之一般技藝者能更進一步了解本發明，下文特列舉本發明之較佳實施例，並配合所附圖式，詳細說明本發明的構成內容及所欲達成之功效。 The present invention will be further understood by the following detailed description of the preferred embodiments of the invention, .
請參考第1圖與第2圖，第1圖繪示了本發明之第一實施例之觸控面板的上視示意圖，為了突顯本實施例之觸控面板的特徵，第1圖繪示觸控面板的局部放大示意圖，而第2圖係沿第1圖之剖線A-A’與剖線B-B’繪示之觸控面板的剖面示意圖。如第1圖與第2圖所示，本實施例的觸控面板1A包括基板100、複數條第一感應電極串列10、複數條第二感應電極串列20、複數個第一導電圖案104以及複數個第一絕緣圖案106。基板100具有感測區100S與周邊區100P，其中周邊區100P設置於感測區100S至少一側。基板100可以是可撓式基板或是硬質基板例如玻璃基板、塑膠基板與石英基板等。第一感應電極串列10設置於感測區100S內之基板100上，並沿第一方向D1延伸。第一感應電極串列10係由複數個橋接電極102B與複數個感應電極102S沿第一方向D1交替排列所形成。各橋接電極102B實質上沿第一方向D1延伸，並分別與兩相鄰之感應電極102S電性連接。本實施例的橋接電極102B的形狀為長方形，而感應電極102S的形狀為菱形，但不以此為限。第一導電圖案104設置於感測區100S內之基板100上，其中各橋接電極102B在第二方向D2上設置於兩第一導電圖案104之間。橋接電極102B與第一導電圖案104電性分離，且橋接電極102B與第一導電圖案104之間的距離至少大於5微米。本實施例的第一導電圖案104的形狀為矩形，但不以此為限。第一絕緣圖案106分別對應設置於橋接電極102B上，且部分覆蓋橋接電極102B及第一導電圖案 104。此外，第一導電圖案104係分別設置於第一絕緣圖案106的邊緣。第一絕緣圖案106可包括有機絕緣層例如壓克力系材料或無機絕緣層例如氧化矽、氮化矽、氮氧化矽等。此外，為了方便說明，圖上的感應電極102S與橋接電極102B兩者非按實際比例關係繪圖，本文中相關圖式亦同。 Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a schematic top view of the touch panel according to the first embodiment of the present invention. In order to highlight the features of the touch panel of the embodiment, FIG. 1 illustrates the touch. A partially enlarged schematic view of the control panel, and FIG. 2 is a cross-sectional view of the touch panel taken along line AA' and line B-B' of FIG. As shown in FIG. 1 and FIG. 2 , the touch panel 1A of the present embodiment includes a substrate 100 , a plurality of first sensing electrode serials 10 , a plurality of second sensing electrode serials 20 , and a plurality of first conductive patterns 104 . And a plurality of first insulation patterns 106. The substrate 100 has a sensing area 100S and a peripheral area 100P, wherein the peripheral area 100P is disposed on at least one side of the sensing area 100S. The substrate 100 may be a flexible substrate or a rigid substrate such as a glass substrate, a plastic substrate, a quartz substrate, or the like. The first sensing electrode serial 10 is disposed on the substrate 100 in the sensing region 100S and extends in the first direction D1. The first sensing electrode serial 10 is formed by alternately arranging a plurality of bridge electrodes 102B and a plurality of sensing electrodes 102S in the first direction D1. Each of the bridge electrodes 102B extends substantially in the first direction D1 and is electrically connected to the two adjacent sensing electrodes 102S. The shape of the bridge electrode 102B of the present embodiment is a rectangle, and the shape of the sensing electrode 102S is a diamond shape, but is not limited thereto. The first conductive pattern 104 is disposed on the substrate 100 in the sensing region 100S, wherein each of the bridge electrodes 102B is disposed between the two first conductive patterns 104 in the second direction D2. The bridge electrode 102B is electrically separated from the first conductive pattern 104, and the distance between the bridge electrode 102B and the first conductive pattern 104 is at least greater than 5 microns. The shape of the first conductive pattern 104 of this embodiment is rectangular, but is not limited thereto. The first insulation patterns 106 are respectively disposed on the bridge electrodes 102B, and partially cover the bridge electrodes 102B and the first conductive patterns. 104. In addition, the first conductive patterns 104 are respectively disposed at edges of the first insulating patterns 106. The first insulation pattern 106 may include an organic insulating layer such as an acryl-based material or an inorganic insulating layer such as yttrium oxide, cerium nitride, cerium oxynitride or the like. In addition, for convenience of description, both the sensing electrode 102S and the bridge electrode 102B on the drawing are not drawn in an actual proportional relationship, and the related drawings herein are also the same.
第二感應電極串列20沿第二方向D2設置於感測區100S內之基板100上，並與第一感應電極串列10交錯設置，其中各第二感應電極串列20包括複數個橋接部108B以及複數個感應部108S，且第二感應電極串列20係由橋接部108B與感應部108S沿第二方向D2交替排列所形成。橋接部108B大致上為沿第二方向D2延伸的長方形，而感應部108S大致上為菱形，但不以此為限。橋接部108B分別對應設置於第一絕緣圖案106上並分別與對應之橋接電極102B於垂直投影於基板100的方向Z上交錯設置，且各橋接部108B於垂直投影於基板100的方向Z上與兩相鄰之第一導電圖案104重疊並電性連接。本實施例的各第一導電圖案104於第一方向D1上具有第一寬度W1，各橋接部108B於第一方向D1上具有第二寬度W2，第一寬度W1與第二寬度W2的比例範圍為50%至150%。各第一絕緣圖案106分別設置於橋接電極102B之其一與橋接部108B之其一之間，使得橋接電極102B與橋接部108B電性絕緣。各感應部108S分別設置於沿第二方向D2相鄰之橋接部108B之間並電性連接。本實施例之橋接電極102B與第一導電圖案104可為同一圖案化導電層，而感應電極102S與第二感應電極串列20可為另一圖案化導電層。圖案化導電層可包括透明圖案化導電層，其材料可包括例如氧化銦錫、氧化銦鋅或其它透明導電材料。此外，為了方便說明，圖上的感應部108S與橋接部108B兩者非按實際比例關係繪圖，本文中相關圖式亦同。 The second sensing electrode serials 20 are disposed on the substrate 100 in the sensing region 100S along the second direction D2, and are interleaved with the first sensing electrode serials 10, wherein each of the second sensing electrode serials 20 includes a plurality of bridges. 108B and a plurality of sensing portions 108S, and the second sensing electrode serial 20 is formed by alternately arranging the bridge portion 108B and the sensing portion 108S in the second direction D2. The bridge portion 108B is substantially a rectangle extending in the second direction D2, and the sensing portion 108S is substantially rhombic, but is not limited thereto. The bridge portions 108B are respectively disposed on the first insulation patterns 106 and are respectively staggered in the direction Z perpendicular to the corresponding bridge electrodes 102B projected on the substrate 100, and the bridge portions 108B are vertically projected in the direction Z of the substrate 100. The two adjacent first conductive patterns 104 are overlapped and electrically connected. Each of the first conductive patterns 104 of the present embodiment has a first width W1 in the first direction D1, and each of the bridge portions 108B has a second width W2 in the first direction D1, and a ratio range of the first width W1 and the second width W2 It is 50% to 150%. Each of the first insulation patterns 106 is disposed between one of the bridge electrodes 102B and one of the bridge portions 108B, so that the bridge electrode 102B is electrically insulated from the bridge portion 108B. Each of the sensing portions 108S is respectively disposed between the bridge portions 108B adjacent in the second direction D2 and electrically connected. The bridge electrode 102B and the first conductive pattern 104 of the embodiment may be the same patterned conductive layer, and the sensing electrode 102S and the second sensing electrode serial 20 may be another patterned conductive layer. The patterned conductive layer can include a transparent patterned conductive layer, the material of which can include, for example, indium tin oxide, indium zinc oxide, or other transparent conductive material. In addition, for convenience of description, the sensing portion 108S and the bridge portion 108B on the drawing are not drawn in an actual proportional relationship, and the related drawings herein are also the same.
請參考第2圖，在本實施例中，橋接電極102B及第一導電圖案104係 設置於基板100與第二感應電極串列20之間。第一絕緣圖案106係設置於第二感應電極串列20與橋接電極102B之間、第二感應電極串列20與基板100之間以及第二感應電極串列20與第一導電圖案104之間。此外，一部分的第一導電圖案104係與第二感應電極串列20直接接觸，而另一部分的第一導電圖案104係與第一絕緣圖案106直接接觸。換言之，觸控面板1A在第一絕緣圖案106的邊緣之外側具有第一導電圖案104與第二感應電極串列20堆疊的結構，而在第一絕緣圖案106的邊緣之內側具有第一絕緣圖案106夾設於第一導電圖案104與第二感應電極串列20之間的結構。在此情況下，由於本實施例的第一導電圖案104與第二感應電極串列20皆為導電材料，第一導電圖案104與第二感應電極串列20在第一絕緣圖案106的邊緣堆疊，可增加感應電極串列於第一絕緣圖案106的邊緣轉折處的結構強度，並減少不同層與基板間的材料應力差異，且兩段式堆疊也可改善感應電極串列轉折處的高低斷差。因此可避免導電材料在絕緣圖案與基板100間的剝離或導電材料在絕緣圖案邊緣的皺摺問題。然而，本實施例的觸控面板1A相較於習知的觸控面板，亦能夠降低第二感應電極串列20與其他不同材料之間因熱脹冷縮而發生剝離或斷線或皺摺的機率。再者，即使位於第一導電圖案104邊緣外的第二感應電極串列20發生剝離或斷線等問題，墊在第二感應電極串列20下的第一導電圖案104也能夠提供另一條導電路徑。 Referring to FIG. 2, in the embodiment, the bridge electrode 102B and the first conductive pattern 104 are It is disposed between the substrate 100 and the second sensing electrode serial 20 . The first insulating pattern 106 is disposed between the second sensing electrode serial 20 and the bridge electrode 102B, between the second sensing electrode serial 20 and the substrate 100, and between the second sensing electrode serial 20 and the first conductive pattern 104. . In addition, a portion of the first conductive pattern 104 is in direct contact with the second sensing electrode serial 20, and another portion of the first conductive pattern 104 is in direct contact with the first insulating pattern 106. In other words, the touch panel 1A has a structure in which the first conductive pattern 104 and the second sensing electrode serial 20 are stacked on the outer side of the edge of the first insulating pattern 106, and has a first insulating pattern on the inner side of the edge of the first insulating pattern 106. The structure is sandwiched between the first conductive pattern 104 and the second sensing electrode serial 20 . In this case, since the first conductive pattern 104 and the second sensing electrode serial 20 of the present embodiment are both conductive materials, the first conductive pattern 104 and the second sensing electrode serial 20 are stacked on the edge of the first insulating pattern 106. The structural strength of the sensing electrode string at the edge turn of the first insulating pattern 106 can be increased, and the material stress difference between the different layers and the substrate can be reduced, and the two-stage stack can also improve the high and low break of the inductive electrode series. difference. Therefore, the peeling of the conductive material between the insulating pattern and the substrate 100 or the wrinkle of the conductive material at the edge of the insulating pattern can be avoided. However, the touch panel 1A of the present embodiment can reduce the peeling or disconnection or wrinkle of the second sensing electrode string 20 and other different materials due to thermal expansion and contraction, compared with the conventional touch panel. The chance. Moreover, even if the second sensing electrode serial 20 located outside the edge of the first conductive pattern 104 has problems such as peeling or disconnection, the first conductive pattern 104 under the second sensing electrode serial 20 can provide another conductive path.
在本實施例中，觸控面板1A另包括複數條導線110、複數條連接線112及複數個第二導電圖案114設置於周邊區100P內之基板100上。導線110分別透過連接線112與第一感應電極串列10或第二感應電極串列20電性連接，其中第1圖係以電性連接於第二感應電極串列20之導線110為例。第二導電圖案114係設置於導線110與連接線112互相重疊處，且第二感應電極串列20透過連接線112與導線110電性連接。第二導電圖案114設置於連接線112與基板100之間，且一部份的 第二導電圖案114設置於導線110與基板100之間，而連接線112部分覆蓋導線110之一端並完全覆蓋第二導電圖案114。詳細而言，導線110部分覆蓋第二導電圖案114之一側面114S，且導線110之一端分別位於連接線112與第二導電圖案114的側面114S之間。本實施例的連接線112與第二感應電極串列20為同一層圖案化導電層，而第二導電圖案114與第一導電圖案104為同一層圖案化導電層，但不以此為限。此外，導線110可包括金屬或其他導電材料。由於本實施例的第二導電圖案114與連接線112皆為導電材料，可藉由第二導電圖案114的設置強化連接線112在導線110轉折處的結構強度，且兩段式堆疊降低連接線112與導線110重疊處的高度差，進而使得連接線112設置於導線110上時可避免因為高低斷差而導致剝離或斷線的問題。然而，本實施例的觸控面板1A中，即使與導線110接觸之部分的連接線112發生斷線等問題，第二導電圖案114也能夠提供另一條導電路徑。 In this embodiment, the touch panel 1A further includes a plurality of wires 110, a plurality of connecting wires 112, and a plurality of second conductive patterns 114 disposed on the substrate 100 in the peripheral region 100P. The wires 110 are electrically connected to the first sensing electrode serials 10 or the second sensing electrode serials 20 through the connecting wires 112. The first figure is exemplified by the wires 110 electrically connected to the second sensing electrode serials 20. The second conductive pattern 114 is disposed at a position where the wire 110 and the connecting line 112 overlap each other, and the second sensing electrode string 20 is electrically connected to the wire 110 through the connecting line 112. The second conductive pattern 114 is disposed between the connection line 112 and the substrate 100, and a part of The second conductive pattern 114 is disposed between the wire 110 and the substrate 100, and the connecting line 112 partially covers one end of the wire 110 and completely covers the second conductive pattern 114. In detail, the wire 110 partially covers one side surface 114S of the second conductive pattern 114, and one end of the wire 110 is located between the connection line 112 and the side surface 114S of the second conductive pattern 114, respectively. The second conductive pattern 114 and the first conductive pattern 104 are the same layer of the patterned conductive layer, but the second conductive pattern 114 and the first conductive pattern 104 are the same layer of patterned conductive layer, but not limited thereto. Additionally, wire 110 can comprise a metal or other electrically conductive material. Since the second conductive pattern 114 and the connecting line 112 of the embodiment are all conductive materials, the structural strength of the connecting line 112 at the turn of the wire 110 can be strengthened by the arrangement of the second conductive pattern 114, and the two-stage stacking reduces the connecting line. The height difference between the portion 112 and the wire 110 is such that when the connecting wire 112 is disposed on the wire 110, the problem of peeling or wire breakage due to high and low breaks can be avoided. However, in the touch panel 1A of the present embodiment, even if the connection line 112 of the portion in contact with the wire 110 is broken or the like, the second conductive pattern 114 can provide another conductive path.
本發明之觸控面板不以上述實施例為限。下文將依序介紹本發明之變化實施例與其它實施例之觸控面板，且為了便於比較各實施例之相異處並簡化說明，在下文之各實施例中使用相同的符號標注相同的元件，且主要針對各實施例之相異處進行說明，而不再對重覆部分進行贅述。 The touch panel of the present invention is not limited to the above embodiment. The touch panel of the modified embodiment of the present invention and other embodiments will be sequentially described below, and the same symbols are used to denote the same components in the following embodiments in order to facilitate the comparison of the different embodiments and simplify the description. And the description of the differences between the embodiments is mainly made, and the repeated parts are not described again.
請參考第3圖，其繪示了本發明第一實施例之第一變化實施例之觸控面板周邊區的剖面示意圖。如第3圖所示，本變化實施例與第一實施例不同的地方在於，觸控面板1B另包括複數個第二絕緣圖案116設置於周邊區內100P之基板100上，其中第二絕緣圖案116位於連接線112與第二導電圖案114之間，且部分之第二絕緣圖案116位於連接線112與導線110之間。換言之，第二絕緣圖案116分別部分覆蓋導線110之一端及局部之第二導電圖案114。第二絕緣圖案116可包括有 機絕緣層例如壓克力系材料或無機絕緣層例如氧化矽、氮化矽、氮氧化矽等。請參考第4圖，其繪示了本發明第一實施例之第二變化實施例之觸控面板周邊區的剖面示意圖。如第4圖所示，本變化實施例與第一實施例不同的地方在於，第二導電圖案114之側面114S與對應之連接線112所覆蓋之導線110的一端鄰近設置，第二導電圖案114與導線110並未接觸，且兩者之間具有間隙。觸控面板1C另包括複數個第二絕緣圖案116設置於周邊區100P內之基板100上，其中第二絕緣圖案116分別部分覆蓋導線110之一端及第二導電圖案114之側面114S，且第二絕緣圖案116分別位於連接線112與導線110之一端之間、連接線112與基板100之間及連接線112與第二導電圖案114之側面114S之間。此外，第一實施例之第一變化實施例及第二變化實施例有關於導線110藉由連接線112與第一感應電極串列10或第二感應電極串列20電性連接的作法也可應用於以下各實施例。 Please refer to FIG. 3, which is a cross-sectional view showing a peripheral area of a touch panel according to a first variation of the first embodiment of the present invention. As shown in FIG. 3, the difference between the embodiment and the first embodiment is that the touch panel 1B further includes a plurality of second insulation patterns 116 disposed on the substrate 100 of the peripheral region 100P, wherein the second insulation pattern 116 is located between the connection line 112 and the second conductive pattern 114, and a portion of the second insulation pattern 116 is located between the connection line 112 and the wire 110. In other words, the second insulation patterns 116 partially cover one end of the wire 110 and a portion of the second conductive pattern 114, respectively. The second insulation pattern 116 may include The insulating layer of the machine is, for example, an acryl-based material or an inorganic insulating layer such as cerium oxide, cerium nitride, cerium oxynitride or the like. Please refer to FIG. 4, which is a cross-sectional view showing a peripheral area of a touch panel according to a second modified embodiment of the first embodiment of the present invention. As shown in FIG. 4, the difference between the embodiment of the present embodiment and the first embodiment is that the side surface 114S of the second conductive pattern 114 is disposed adjacent to one end of the wire 110 covered by the corresponding connection line 112, and the second conductive pattern 114 is disposed. There is no contact with the wire 110 and there is a gap between the two. The touch panel 1C further includes a plurality of second insulation patterns 116 disposed on the substrate 100 in the peripheral region 100P. The second insulation patterns 116 partially cover one end of the wire 110 and the side 114S of the second conductive pattern 114, respectively. The insulating patterns 116 are respectively located between the connecting line 112 and one end of the wire 110, between the connecting line 112 and the substrate 100, and between the connecting line 112 and the side 114S of the second conductive pattern 114. In addition, the first variation embodiment and the second variation embodiment of the first embodiment are related to the method that the wire 110 is electrically connected to the first sensing electrode serial 10 or the second sensing electrode serial 20 by the connecting line 112. It is applied to the following embodiments.
請參考第5圖與第6圖，第5圖繪示了本發明第二實施例之觸控面板的上視示意圖，為了突顯本實施例之觸控面板的特徵，第5圖繪示觸控面板的局部放大示意圖，而第6圖係沿第5圖之剖線C-C’繪示之觸控面板的剖面示意圖。如第5圖與第6圖所示，本實施例與第一實施例不同的地方在於，觸控面板2之各感應部108S具有開口118，且開口118係在第二方向D2上鄰近對應之第一導電圖案104設置，並位於第一導電圖案104相反於第一絕緣圖案106之一側。換言之，開口118係位在鄰近於第一絕緣圖案106邊緣的感應部108S內，且暴露出一部分的基板100。此外，本實施例之各開口118具有第一面積，各感應部108S具有第二面積，且第一面積與第二面積的比例範圍為5%至15%。由於本實施例的第二感應電極串列20具有開口118，且開口118設置於鄰近第一絕緣圖案106的位置，因此第一絕緣圖案106的材料與第二感應電極串列20之導電材料因製程溫度改變造成不同的體積變化，使得於第一絕緣圖案106附近造成的應力堆積得以釋放， 藉此避免第二感應電極串列20的材料發生剝離或斷線等問題。 Referring to FIG. 5 and FIG. 6 , FIG. 5 is a top view of the touch panel according to the second embodiment of the present invention. In order to highlight the features of the touch panel of the embodiment, FIG. 5 illustrates the touch. A partially enlarged schematic view of the panel, and FIG. 6 is a cross-sectional view of the touch panel taken along line C-C' of FIG. As shown in FIG. 5 and FIG. 6, the difference between the embodiment and the first embodiment is that each sensing portion 108S of the touch panel 2 has an opening 118, and the opening 118 is adjacent to the corresponding one in the second direction D2. The first conductive pattern 104 is disposed and located on a side of the first conductive pattern 104 opposite to the first insulating pattern 106. In other words, the opening 118 is positioned within the sensing portion 108S adjacent to the edge of the first insulating pattern 106, and a portion of the substrate 100 is exposed. In addition, each opening 118 of the embodiment has a first area, each sensing portion 108S has a second area, and the ratio of the first area to the second area ranges from 5% to 15%. Since the second sensing electrode serial 20 of the embodiment has an opening 118 and the opening 118 is disposed adjacent to the first insulating pattern 106, the material of the first insulating pattern 106 and the conductive material of the second sensing electrode serial 20 are The process temperature change causes different volume changes, so that the stress accumulation caused near the first insulation pattern 106 is released. Thereby, problems such as peeling or disconnection of the material of the second sensing electrode serial 20 are avoided.
請參考第7圖與第8圖，第7圖繪示了本發明第三實施例之觸控面板的上視示意圖，為了突顯本實施例之觸控面板的特徵，第7圖繪示觸控面板的局部放大示意圖，而第8圖係沿第7圖之剖線D-D’繪示之觸控面板的剖面示意圖。如第7圖與第8圖所示，本實施例與第一實施例不同的地方在於，觸控面板3之第一絕緣圖案106於第二方向D2上延伸設置至部份之各感應部108S與基板100之間，各感應部108S具有開口118設置於對應之第一絕緣圖案106上，且開口118與對應之第一導電圖案104於垂直投影於基板100的方向Z上重疊，而開口118與橋接電極102B在垂直投影於基板100的方向Z上不重疊。換言之，開口118係位在鄰近於第一絕緣圖案106邊緣的感應部108S內，且暴露出一部分的第一絕緣圖案106。此外，本實施例之各開口118具有第一面積，各感應部108S具有第二面積，且第一面積與第二面積的比例範圍為5%至15%。由於本實施例的第二感應電極串列20具有開口118，且開口118設置於鄰近第一絕緣圖案106的位置，因此第一絕緣圖案106的材料與第二感應電極串列20之導電材料因製程溫度改變造成不同的體積變化，使得於第一絕緣圖案106附近造成的應力堆積得以釋放，藉此避免第二感應電極串列20的材料發生剝離或斷線等問題。 Referring to FIG. 7 and FIG. 8 , FIG. 7 is a top view of the touch panel according to the third embodiment of the present invention. In order to highlight the features of the touch panel of the embodiment, FIG. 7 illustrates the touch. A partially enlarged schematic view of the panel, and FIG. 8 is a cross-sectional view of the touch panel taken along line DD' of FIG. As shown in FIG. 7 and FIG. 8 , the difference between the first embodiment and the first embodiment is that the first insulating pattern 106 of the touch panel 3 extends in the second direction D2 to the sensing portions 108S of the portion. The sensing portion 108S has an opening 118 disposed on the corresponding first insulating pattern 106, and the opening 118 overlaps with the corresponding first conductive pattern 104 in a direction Z perpendicularly projected on the substrate 100, and the opening 118 The bridge electrode 102B does not overlap in the direction Z perpendicularly projected on the substrate 100. In other words, the opening 118 is positioned within the sensing portion 108S adjacent to the edge of the first insulating pattern 106, and a portion of the first insulating pattern 106 is exposed. In addition, each opening 118 of the embodiment has a first area, each sensing portion 108S has a second area, and the ratio of the first area to the second area ranges from 5% to 15%. Since the second sensing electrode serial 20 of the embodiment has an opening 118 and the opening 118 is disposed adjacent to the first insulating pattern 106, the material of the first insulating pattern 106 and the conductive material of the second sensing electrode serial 20 are The process temperature change causes different volume changes, so that the stress accumulation caused in the vicinity of the first insulation pattern 106 is released, thereby avoiding problems such as peeling or disconnection of the material of the second induction electrode string 20.
請參考第9圖與第10圖，第9圖繪示了本發明之第四實施例之觸控面板的上視示意圖，為了突顯本實施例之觸控面板的特徵，第9圖繪示觸控面板的局部放大示意圖，而第10圖係沿第9圖之剖線E-E’與剖線F-F’繪示之觸控面板的剖面示意圖。如第9圖與第10圖所示，本實施例與第一實施例不同的地方在於，在觸控面板4中並未設置第一導電圖案104。在本實施例中，各感應部108S具有開口118，且開口118係在第二方向D2上鄰近對應之橋接部108B的一端設置。換 言之，開口118係位在鄰近於第一絕緣圖案106邊緣的感應部108S內，且暴露出一部分的基板100。再者，開口118與橋接電極102B在垂直投影於基板100的方向Z上不重疊。此外，本實施例之各開口118具有第一面積，各感應部108S具有第二面積，且第一面積與第二面積的比例範圍為5%至15%。由於本實施例的第二感應電極串列20具有開口118，且開口118設置於鄰近第一絕緣圖案106的位置，因此第一絕緣圖案106的材料與第二感應電極串列20之導電材料因製程溫度改變造成不同的體積變化，使得於第一絕緣圖案106附近造成的應力堆積得以釋放，藉此避免第二感應電極串列20的材料發生剝離或斷線等問題。本實施例之觸控面板4之各元件的其餘特徵可與第一實施例相同，並可參考第一實施例。 Please refer to FIG. 9 and FIG. 10 . FIG. 9 is a schematic top view of the touch panel according to the fourth embodiment of the present invention. In order to highlight the features of the touch panel of the embodiment, FIG. 9 illustrates the touch. A partially enlarged schematic view of the control panel, and FIG. 10 is a cross-sectional view of the touch panel along the line E-E' and the line F-F' of FIG. As shown in FIG. 9 and FIG. 10, the difference between the present embodiment and the first embodiment is that the first conductive pattern 104 is not disposed in the touch panel 4. In the present embodiment, each sensing portion 108S has an opening 118, and the opening 118 is disposed adjacent to one end of the corresponding bridge portion 108B in the second direction D2. change In other words, the opening 118 is located in the sensing portion 108S adjacent to the edge of the first insulating pattern 106, and a portion of the substrate 100 is exposed. Furthermore, the opening 118 and the bridge electrode 102B do not overlap in the direction Z perpendicularly projected on the substrate 100. In addition, each opening 118 of the embodiment has a first area, each sensing portion 108S has a second area, and the ratio of the first area to the second area ranges from 5% to 15%. Since the second sensing electrode serial 20 of the embodiment has an opening 118 and the opening 118 is disposed adjacent to the first insulating pattern 106, the material of the first insulating pattern 106 and the conductive material of the second sensing electrode serial 20 are The process temperature change causes different volume changes, so that the stress accumulation caused in the vicinity of the first insulation pattern 106 is released, thereby avoiding problems such as peeling or disconnection of the material of the second induction electrode string 20. The remaining features of the components of the touch panel 4 of the present embodiment may be the same as those of the first embodiment, and reference may be made to the first embodiment.
請參考第11圖與第12圖，第11圖繪示了本發明第五實施例之觸控面板的上視示意圖，為了突顯本實施例之觸控面板的特徵，第11圖繪示觸控面板的局部放大示意圖，而第12圖係沿第11圖之剖線G-G’繪示之觸控面板的剖面示意圖。如第11圖與第12圖所示，本實施例與第四實施例不同的地方在於，觸控面板5之第一絕緣圖案106於第二方向D2上延伸設置至部份之各感應部108S與基板100之間，其中各感應部108S具有開口118設置於對應之第一絕緣圖案106上，且開口118與部分之第一絕緣圖案106於垂直投影於基板100的方向Z上重疊。換言之，開口118係位在鄰近於第一絕緣圖案106邊緣的感應部108S內，且暴露出一部分的第一絕緣圖案106。此外，本實施例之各開口118具有第一面積，各感應部108S具有第二面積，且第一面積與第二面積的比例範圍為5%至15%。由於本實施例的第二感應電極串列20具有開口118，且開口118設置於鄰近第一絕緣圖案106的位置，因此第一絕緣圖案106的材料與第二感應電極串列20之導電材料因製程溫度改變造成不同的體積變化，使得於第一絕緣圖案106附近造成的應力堆積得以釋放，藉此避免第二感應電極串列20的材料發生剝離或斷線等問題。 Please refer to FIG. 11 and FIG. 12 . FIG. 11 is a top view of the touch panel according to the fifth embodiment of the present invention. In order to highlight the features of the touch panel of the embodiment, FIG. 11 illustrates the touch. A partially enlarged schematic view of the panel, and FIG. 12 is a schematic cross-sectional view of the touch panel taken along line G-G' of FIG. As shown in FIG. 11 and FIG. 12 , the difference between the present embodiment and the fourth embodiment is that the first insulating pattern 106 of the touch panel 5 extends to the sensing portions 108S of the portion in the second direction D2. Between the substrate and the substrate 100, each of the sensing portions 108S has an opening 118 disposed on the corresponding first insulating pattern 106, and the opening 118 overlaps with a portion of the first insulating pattern 106 in a direction Z perpendicularly projected on the substrate 100. In other words, the opening 118 is positioned within the sensing portion 108S adjacent to the edge of the first insulating pattern 106, and a portion of the first insulating pattern 106 is exposed. In addition, each opening 118 of the embodiment has a first area, each sensing portion 108S has a second area, and the ratio of the first area to the second area ranges from 5% to 15%. Since the second sensing electrode serial 20 of the embodiment has an opening 118 and the opening 118 is disposed adjacent to the first insulating pattern 106, the material of the first insulating pattern 106 and the conductive material of the second sensing electrode serial 20 are The process temperature change causes different volume changes, so that the stress accumulation caused in the vicinity of the first insulation pattern 106 is released, thereby avoiding problems such as peeling or disconnection of the material of the second induction electrode string 20.
本發明中所提的感應電極102S間的間距，或是感應部108S間的間距，依實際需求可以分別是等距或是不等距，最大間距例如是5毫米(mm)。 The spacing between the sensing electrodes 102S or the spacing between the sensing portions 108S in the present invention may be equidistant or unequal, respectively, according to actual needs, and the maximum spacing is, for example, 5 millimeters (mm).
本發明之觸控面板可為電容式觸控面板，其可為自容式觸控面板或互容式觸控面板，但不以此為限。此外，本發明之觸控面板可進一步與各式顯示面板整合而形成觸控顯示面板。顯示面板可包括自發光型顯示面板例如有機電激發光顯示面板、電漿顯示面板與場發射顯示面板等，或非自發光型顯示面板例如液晶顯示面板、電溼潤顯示面板、電泳顯示面板等。 The touch panel of the present invention can be a capacitive touch panel, which can be a self-capacitive touch panel or a mutual-capacitive touch panel, but is not limited thereto. In addition, the touch panel of the present invention can be further integrated with various display panels to form a touch display panel. The display panel may include a self-luminous display panel such as an organic electroluminescent display panel, a plasma display panel and a field emission display panel, or a non-self-luminous display panel such as a liquid crystal display panel, an electrowetting display panel, an electrophoretic display panel, or the like.
綜上所述，本發明之觸控面板於第一絕緣圖案之邊緣設置第一導電圖案，並於導線用以電性連接感應電極串列之一端的邊緣設置第二導電圖案，避免跨越第一絕緣圖案的第二感應電極串列以及跨接導線的連接線發生剝離或斷線等問題。再者，即使位於第一導電圖案上的第二感應電極串列或與導線接觸之部分的連接線發生剝離或斷線等問題，第一導電圖案及第二導電圖案也能夠提供另一條導電路徑。此外，本發明之觸控面板於鄰近第一絕緣圖案邊緣的感應部設置開口，使得於第一絕緣圖案附近所堆積的應力得以釋放，藉此避免跨越第一絕緣圖案的第二感應電極串列發生剝離或斷線等問題。 In summary, the touch panel of the present invention is provided with a first conductive pattern on the edge of the first insulating pattern, and a second conductive pattern is disposed on the edge of the wire for electrically connecting one end of the sensing electrode string, avoiding crossing the first The second sensing electrode string of the insulating pattern and the connecting line connecting the wires are subject to problems such as peeling or disconnection. Furthermore, the first conductive pattern and the second conductive pattern can provide another conductive path even if the second sensing electrode string on the first conductive pattern or the connecting line of the portion in contact with the wire is peeled off or broken. . In addition, the touch panel of the present invention is provided with an opening in the sensing portion adjacent to the edge of the first insulating pattern, so that the stress accumulated in the vicinity of the first insulating pattern is released, thereby avoiding the second sensing electrode string spanning the first insulating pattern. Problems such as peeling or disconnection occur.
以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201231632A (en) * | 2010-10-26 | 2012-08-01 | Nissan Chemical Ind Ltd | Touch panel |
| TW201423544A (en) * | 2012-12-07 | 2014-06-16 | Wintek Corp | Capacitive touch panel and method of making the same |
| CN104035627A (en) * | 2014-05-06 | 2014-09-10 | 友达光电股份有限公司 | Touch panel and repairing method thereof |
| CN104376898A (en) * | 2013-08-16 | 2015-02-25 | 财团法人工业技术研究院 | Patterned conductive film, manufacturing method thereof and touch panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201231632A (en) * | 2010-10-26 | 2012-08-01 | Nissan Chemical Ind Ltd | Touch panel |
| TW201423544A (en) * | 2012-12-07 | 2014-06-16 | Wintek Corp | Capacitive touch panel and method of making the same |
| CN104376898A (en) * | 2013-08-16 | 2015-02-25 | 财团法人工业技术研究院 | Patterned conductive film, manufacturing method thereof and touch panel |
| CN104035627A (en) * | 2014-05-06 | 2014-09-10 | 友达光电股份有限公司 | Touch panel and repairing method thereof |
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