TWI533174B - Touch panel - Google Patents
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- TWI533174B TWI533174B TW103126959A TW103126959A TWI533174B TW I533174 B TWI533174 B TW I533174B TW 103126959 A TW103126959 A TW 103126959A TW 103126959 A TW103126959 A TW 103126959A TW I533174 B TWI533174 B TW I533174B
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Description
本發明係關於一種觸控技術領域，特別關係於一種觸控面板。 The present invention relates to the field of touch technology, and particularly relates to a touch panel.
近年來，隨著觸控技術的不斷發展，觸控面板現已被廣泛應用於各種電子產品中，以作為使用者輸入介面。 In recent years, with the continuous development of touch technology, touch panels have been widely used in various electronic products as user input interfaces.
一般的觸控面板中包含複數金屬導線，分別電性連接複數觸控電極，並電性連接於一軟性電路板，軟性電路板連接至一控制器，如此，觸控電極上所產生的觸控信號，先後經過金屬導線、軟性電路板，傳送至控制器，而來自控制器的驅動信號，先後經過軟性電路板與金屬導線傳輸至觸控電極，以實現觸控面板上觸控信號的產生與傳遞。 A typical touch panel includes a plurality of metal wires electrically connected to a plurality of touch electrodes and electrically connected to a flexible circuit board. The flexible circuit board is connected to a controller. Thus, the touch generated on the touch electrodes is The signal is transmitted to the controller through the metal wire and the flexible circuit board, and the driving signal from the controller is transmitted to the touch electrode through the flexible circuit board and the metal wire, so as to realize the generation of the touch signal on the touch panel. transfer.
傳統的金屬導線一般為一金屬層藉由蝕刻得到，或者是藉由網版印刷金屬銀漿而獲得的圖案化結構，由於金屬本身易被空氣氧化，並且無論是藉由蝕刻還是藉由網版印刷方式製作的金屬導線，其都易產生斷線或線路結構不均勻的問題，降低了製程良率，影響觸控面板結構的穩定性。 Conventional metal wires are generally obtained by etching a metal layer, or by a screen printing metal silver paste, because the metal itself is easily oxidized by air, and whether by etching or by screen. The metal wires produced by the printing method are prone to the problem of disconnection or uneven circuit structure, which reduces the process yield and affects the stability of the touch panel structure.
為了解決上述由於金屬導線易被空氣氧化及結構不均勻而引起的製程良率降低，觸控面板結構穩定性受影響的問題，本發明之目的在於提供一種具有雙層結構導線的觸控面板，以防止導線結構中的金屬被氧化，及提高導線結構的穩定性。 In order to solve the above problem that the stability of the process is affected by the oxidation of the metal wires due to the oxidation of the metal wires and the structural non-uniformity, the stability of the structure of the touch panel is affected. The object of the present invention is to provide a touch panel having a double-layer structure wire. In order to prevent the metal in the wire structure from being oxidized, and to improve the stability of the wire structure.
為達上述目的，本發明提供一種觸控面板，包含一基板、一感測電極結構以及複數雙層結構導線。感測電極結構設置於基板上。複數雙層結構導線與感測電極結構電性連接。各雙層結構導線係由一金屬材料 層與一透明導電材料層組成，且金屬材料層設置於基板與透明導電材料層之間。 To achieve the above objective, the present invention provides a touch panel comprising a substrate, a sensing electrode structure, and a plurality of double-layer structure wires. The sensing electrode structure is disposed on the substrate. The plurality of double-layer structure wires are electrically connected to the sensing electrode structure. Each double-layer structure wire is made of a metal material The layer is composed of a layer of transparent conductive material, and the layer of metal material is disposed between the substrate and the layer of transparent conductive material.
在一實施例中，透明導電材料層包覆金屬材料層。 In an embodiment, the layer of transparent conductive material coats the layer of metallic material.
在一實施例中，感測電極結構包含複數第一軸向電極及與該些第一軸向電極交錯排列且相互絕緣的複數第二軸向電極，該些雙層結構導線分別對應電性連接至該些第一軸向電極與該些第二軸向電極。 In one embodiment, the sensing electrode structure includes a plurality of first axial electrodes and a plurality of second axial electrodes staggered and insulated from the first axial electrodes, wherein the two-layer structural wires respectively correspond to electrical connections To the first axial electrodes and the second axial electrodes.
在一實施例中，該些第一軸向電極與該些第二軸向電極設置於基板的表面，且感測電極結構更包含一絕緣層，絕緣層包含複數絕緣隔點，該些絕緣隔點設置於該些第一軸向電極與所該些第二軸向電極之間，且位於該些第一軸向電極與該些第二軸向電極重疊交叉處。 In one embodiment, the first axial electrodes and the second axial electrodes are disposed on a surface of the substrate, and the sensing electrode structure further comprises an insulating layer, wherein the insulating layer comprises a plurality of insulating spacers, and the insulating spacers The point is disposed between the first axial electrodes and the second axial electrodes, and is located at an intersection of the first axial electrodes and the second axial electrodes.
在一實施例中，觸控面板更包含一薄膜層及一光學膠層，該些第一軸向電極設置於基板上，該些第二軸向電極設置於薄膜層上，薄膜層與基板透過光學膠層相互貼合。 In one embodiment, the touch panel further includes a film layer and an optical adhesive layer. The first axial electrodes are disposed on the substrate, and the second axial electrodes are disposed on the film layer, and the film layer and the substrate are transparent. The optical adhesive layers are bonded to each other.
在一實施例中，部分的該些雙層結構導線設置於基板上並電性連接至該些第一軸向電極，其餘部分的該些雙層結構導線設置於薄膜層上並電性連接至該些第二軸向電極。 In one embodiment, a portion of the two-layer structure wires are disposed on the substrate and electrically connected to the first axial electrodes, and the remaining portions of the two-layer structure wires are disposed on the film layer and electrically connected to The second axial electrodes.
在一實施例中，薄膜層的材料包括聚醯亞胺、聚丙烯、聚苯乙烯、丙烯腈-丁二烯-苯乙烯、聚對苯二甲酸乙二酯、聚氯乙烯、聚碳酸酯、聚乙烯、聚甲基丙烯酸甲酯、聚四氟乙烯、環烯烴共聚物或前述之組合。 In an embodiment, the material of the film layer comprises polyimine, polypropylene, polystyrene, acrylonitrile butadiene styrene, polyethylene terephthalate, polyvinyl chloride, polycarbonate, Polyethylene, polymethyl methacrylate, polytetrafluoroethylene, cyclic olefin copolymer or a combination of the foregoing.
在一實施例中，薄膜層的厚度為0.1微米至15微米。 In one embodiment, the film layer has a thickness of from 0.1 micron to 15 microns.
在一實施例中，該些雙層結構導線設置於基板上，並與感測電極結構位於基板的同一表面。 In one embodiment, the two-layer structure wires are disposed on the substrate and are located on the same surface of the substrate as the sensing electrode structure.
在一實施例中，該些雙層結構導線設置於基板上，且至少部分與感測電極結構位於基板的不同表面。 In an embodiment, the two-layer structure wires are disposed on the substrate and at least partially located on different surfaces of the substrate with the sensing electrode structure.
在一實施例中，基板的材料為強化玻璃。 In an embodiment, the material of the substrate is tempered glass.
在一實施例中，觸控面板更包含一防護層，覆蓋感測電極結構及該些雙層結構導線。 In one embodiment, the touch panel further includes a protective layer covering the sensing electrode structure and the two-layer structure wires.
在一實施例中，該些雙層結構導線電性連接至一軟性電路板，軟性電路板電性連接至一控制器。 In one embodiment, the two-layer structure wires are electrically connected to a flexible circuit board, and the flexible circuit board is electrically connected to a controller.
本發明將導線設計成兩層結構，以一透明導電材料層覆蓋一金屬材料層，以隔絕金屬材料層與空氣接觸，防止金屬材料層被氧化，並同時藉由透明導電材料層本身的導電特性，以補強金屬材料層，使得金屬材料層在出現破損或細微斷裂時能通過透明導電材料層來進行導通，從而提升了導線結構的穩定性。 The invention designs the wire into a two-layer structure, and covers a metal material layer with a transparent conductive material layer to insulate the metal material layer from contact with air to prevent the metal material layer from being oxidized, and at the same time, the conductive property of the transparent conductive material layer itself. In order to reinforce the metal material layer, the metal material layer can be turned on through the transparent conductive material layer in the event of breakage or fine breakage, thereby improving the stability of the wire structure.
10‧‧‧觸控面板 10‧‧‧Touch panel
11‧‧‧基板 11‧‧‧Substrate
12‧‧‧感測電極結構 12‧‧‧Sensor electrode structure
121‧‧‧第一軸向電極 121‧‧‧First axial electrode
122‧‧‧第二軸向電極 122‧‧‧second axial electrode
123‧‧‧絕緣層 123‧‧‧Insulation
13‧‧‧雙層結構導線 13‧‧‧Two-layer structural wire
131‧‧‧金屬材料層 131‧‧‧Metal material layer
132‧‧‧透明導電材料層 132‧‧‧Transparent conductive material layer
14‧‧‧軟性電路板 14‧‧‧Soft circuit board
15‧‧‧控制器 15‧‧‧ Controller
16‧‧‧薄膜層 16‧‧‧film layer
17‧‧‧光學膠層 17‧‧‧Optical adhesive layer
D1‧‧‧第一方向 D1‧‧‧ first direction
D2‧‧‧第二方向 D2‧‧‧ second direction
圖1為本發明一較佳實施例中觸控面板結構的示意圖。 FIG. 1 is a schematic diagram of a structure of a touch panel according to a preferred embodiment of the present invention.
圖2為圖1沿剖面線A-A'的剖面示意圖。 Figure 2 is a schematic cross-sectional view taken along line A-A' of Figure 1.
圖3A為圖1沿剖面線B-B'的剖面示意圖。 3A is a schematic cross-sectional view of FIG. 1 taken along line BB'.
圖3B為圖1沿剖面線B-B'的剖面示意圖。 3B is a schematic cross-sectional view of FIG. 1 taken along line BB′.
圖4為本發明另一較佳實施例中觸控面板疊層結構的示意圖。 4 is a schematic view showing a laminated structure of a touch panel according to another preferred embodiment of the present invention.
以下將參照相關圖式，說明依本發明較佳實施例的一種觸控面板，其中相同的元件將以相同的參照符號加以說明。 Hereinafter, a touch panel according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein like elements will be described with the same reference numerals.
下述結合圖式與具體實施方式對本發明作進一步詳細描述。 The invention will be further described in detail below with reference to the drawings and specific embodiments.
請參閱圖1，圖1為本發明一較佳實施例中觸控面板結構的示意圖，觸控面板10包含基板11、感測電極結構12及複數雙層結構導線13，感測電極結構12與複數雙層結構導線13相互電性連接，其中感測電極結構12與複數雙層結構導線13均設置於基板11上。在本實施例中，感測電極結構12與複數雙層結構導線13設置於基板11的同一表面，具體來說，感測電極結構12位於基板11表面的中央區域，複數雙層結構導線13環繞感測電極結構12而設置於基板11表面的周邊區域。一般來說，基板11表面的中央區域係對應於電子產品的顯示區，感測電極結構12設置於中央區域，使得使用者可在電子產品顯示區所顯示的使用者介面上直接進行操作，而複數雙層結構導線13與感測電極結構12設置於基板11的同一表面，可相互直接連接，以實現電性導通。 Please refer to FIG. 1. FIG. 1 is a schematic diagram of a structure of a touch panel according to a preferred embodiment of the present invention. The touch panel 10 includes a substrate 11, a sensing electrode structure 12, and a plurality of double-layer structure wires 13, and the sensing electrode structure 12 is The plurality of two-layer structure wires 13 are electrically connected to each other, and the sensing electrode structure 12 and the plurality of double-layer structure wires 13 are both disposed on the substrate 11. In this embodiment, the sensing electrode structure 12 and the plurality of double-layer structure wires 13 are disposed on the same surface of the substrate 11. Specifically, the sensing electrode structure 12 is located at a central region of the surface of the substrate 11, and the plurality of double-layer structure wires 13 are surrounded. The electrode structure 12 is sensed and disposed on a peripheral region of the surface of the substrate 11. Generally, the central area of the surface of the substrate 11 corresponds to the display area of the electronic product, and the sensing electrode structure 12 is disposed in the central area, so that the user can directly operate on the user interface displayed on the electronic product display area, and The plurality of double-layer structure wires 13 and the sensing electrode structures 12 are disposed on the same surface of the substrate 11 and can be directly connected to each other to achieve electrical conduction.
值得注意的是，在本發明的其他實施例中，複數雙層結構導 線13可與感測電極結構12位於基板11相對的兩個表面；或者部分雙層結構導線13與感測電極結構12位於基板11的同一表面，而其他部分雙層結構導線13位於相對的另一表面。在此類實施例中，位於不同表面的雙層結構導線13與感測電極結構12的電性連接方式為：在基板11的相對應的位置設置複數通孔(through hole；TH)，藉由在該些通孔中填入導電材料，以電性導通該些雙層結構導線13與感測電極結構12。將雙層結構導線13設置於感測電極結構12所在基板11表面的另一表面，可節省感測電極結構12所在表面的雙層結構導線13的佈設區域面積，從而實現窄邊框或無邊框的觸控面板設計。 It is worth noting that in other embodiments of the invention, the complex bilayer structure guide The line 13 may be located on both surfaces of the substrate 11 opposite to the sensing electrode structure 12; or part of the double-layer structure wire 13 and the sensing electrode structure 12 are located on the same surface of the substrate 11, while other portions of the double-layer structure wire 13 are located opposite each other a surface. In such an embodiment, the electrical connection of the two-layer structure wire 13 and the sensing electrode structure 12 on different surfaces is such that a plurality of through holes (TH) are disposed at corresponding positions of the substrate 11 by A conductive material is filled in the through holes to electrically conduct the two-layer structure wires 13 and the sensing electrode structure 12. The two-layer structure wire 13 is disposed on the other surface of the surface of the substrate 11 where the sensing electrode structure 12 is located, which can save the area of the layout area of the double-layer structure wire 13 on the surface of the sensing electrode structure 12, thereby achieving a narrow frame or a borderless Touch panel design.
在本實施例中，基板11的材料為透明絕緣材料，其可採用玻璃、聚醯亞胺(PI)、聚丙烯(PP)、聚苯乙烯(PS)、丙烯腈-丁二烯-苯乙烯(ABS)、聚對苯二甲酸乙二酯(PET)、聚氯乙烯(PVC)、聚碳酸酯(PC)、聚乙烯(PE)、聚甲基丙烯酸甲酯(PMMA)、聚四氟乙烯(PTFE)等透明材料。在本實施例中，基板11為一強化玻璃蓋板，可用以保護位於其下的結構，例如感測電極結構12、複數雙層結構導線13等。基板11一般是設置於電子產品的最外端，其面向使用者的表面可供使用者進行輸入操作，而相對應的另一表面上設置感測電極結構12、複數雙層結構導線13等觸控感測元件，以接收使用者的輸入資訊。此外，還可在強化玻璃蓋板表面上設置防髒汙、防指紋、抗刮或抗眩等功能層。 In this embodiment, the material of the substrate 11 is a transparent insulating material, which can be made of glass, polyimine (PI), polypropylene (PP), polystyrene (PS), acrylonitrile-butadiene-styrene. (ABS), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polycarbonate (PC), polyethylene (PE), polymethyl methacrylate (PMMA), polytetrafluoroethylene Transparent material such as (PTFE). In the present embodiment, the substrate 11 is a tempered glass cover that can be used to protect the underlying structure, such as the sensing electrode structure 12, the plurality of double-layered structural wires 13, and the like. The substrate 11 is generally disposed at the outermost end of the electronic product, and the surface facing the user is available for the user to perform an input operation, and the corresponding surface is provided with the sensing electrode structure 12, the plurality of double-layer structure wires 13, and the like. The sensing component is controlled to receive user input information. In addition, functional layers such as anti-stain, anti-fingerprint, scratch-resistant or anti-glare can be provided on the surface of the tempered glass cover.
請同時參照圖1和圖2，圖2為圖1沿剖面線A-A'的剖面示意圖，其繪示本實施例感測電極結構12的疊層結構。在本實施例中，感測電極結構12包含複數第一軸向電極121、複數第二軸向電極122及絕緣層123。複數第一軸向電極121設置於基板11表面，沿一第一方向D1延伸，並沿一第二方向D2相互間隔排列，複數第二軸向電極122同樣設置於基板11的表面，沿第二方向D2延伸，並沿第一方向D1相互間隔排列，第一軸向電極121與第二軸向電極122相互絕緣。換言之，第一軸向電極121與第二軸向電極122交錯排列且相互絕緣。 Referring to FIG. 1 and FIG. 2 together, FIG. 2 is a cross-sectional view along line AA′ of FIG. 1 , which illustrates the laminated structure of the sensing electrode structure 12 of the present embodiment. In this embodiment, the sensing electrode structure 12 includes a plurality of first axial electrodes 121, a plurality of second axial electrodes 122, and an insulating layer 123. The plurality of first axial electrodes 121 are disposed on the surface of the substrate 11 and extend along a first direction D1 and are spaced apart from each other along a second direction D2. The plurality of second axial electrodes 122 are also disposed on the surface of the substrate 11 along the second The direction D2 extends and is spaced apart from each other in the first direction D1, and the first axial electrode 121 and the second axial electrode 122 are insulated from each other. In other words, the first axial electrode 121 and the second axial electrode 122 are staggered and insulated from each other.
在本實施例中，絕緣層123包含複數絕緣隔點，複數絕緣隔點設置於第一軸向電極121與第二軸向電極122之間，且位於第一軸向電 極121與第二軸向電極122的重疊交叉處，以隔絕第一軸向電極121與第二軸向電極122於交叉重疊處相互接觸。採用設置複數絕緣隔點的絕緣方式，可降低感測電極結構12的厚度，實現觸控面板的薄型化。 In this embodiment, the insulating layer 123 includes a plurality of insulating spacers, and the plurality of insulating spacers are disposed between the first axial electrode 121 and the second axial electrode 122, and are located in the first axial direction. The intersection of the pole 121 and the second axial electrode 122 intersects to prevent the first axial electrode 121 and the second axial electrode 122 from contacting each other at the overlapping intersection. By adopting an insulation method in which a plurality of insulating spacers are provided, the thickness of the sensing electrode structure 12 can be reduced, and the thickness of the touch panel can be reduced.
第一軸向電極121與第二軸向電極122可包括透明導電材料，透明導電材料例如為氧化銦錫、氧化鋁鋅、氧化鋅、氧化錫銻、二氧化錫、氧化銦、石墨烯等或前述之組合，亦可包括奈米金屬材料、金屬網格(metal mesh)等。奈米金屬材料例如奈米銀線、奈米銅線、奈米碳管等。絕緣層123由透明絕緣材料組成，可選用有機材料、無機材料、複合材料及高分子材料之至少其中之一，具體來說，還可包括熱硬化型樹脂、二氧化矽、光阻等適合之透明絕緣材料。 The first axial electrode 121 and the second axial electrode 122 may include a transparent conductive material such as indium tin oxide, aluminum zinc oxide, zinc oxide, tin oxide germanium, tin dioxide, indium oxide, graphene, or the like. The combination of the foregoing may also include a nano metal material, a metal mesh, or the like. Nano metal materials such as nano silver wire, nano copper wire, carbon nanotubes, and the like. The insulating layer 123 is composed of a transparent insulating material, and at least one of an organic material, an inorganic material, a composite material, and a polymer material may be selected, and specifically, a thermosetting resin, a cerium oxide, a photoresist, or the like may be further included. Transparent insulation.
請參照圖1和圖3A，圖3A為圖1沿剖面線B-B'的剖面示意圖，其繪示了本實施例雙層結構導線13的疊層結構。在本實施例中，雙層結構導線13包含一金屬材料層131及一透明導電材料層132，金屬材料層131直接設置於基板11表面，透明導電材料層132則設置於金屬材料層131上。值得注意的是，在本發明其他實施例中，基板11的表面可設置其他功能層，如保護層或光學匹配層，此時，金屬材料層131並非直接設置於基板11的表面，而是設置於上述功能層的表面。整體來說，在本發明的各實施例中，金屬材料層131是設置於基板11與透明導電材料層132之間。在本實施例中，透明導電材料層132覆蓋於金屬材料層131的上表面，一方面可防止金屬材料層131在後續製程或產品使用過程中被空氣氧化，另一方面，由於透明導電材料層132本身具有導電性，將其設置於金屬材料層131上，當金屬材料層131在出現破損或細微斷裂時，可通過透明導電材料層132進行電性導通，從而達到補強和修繕作用。 Referring to FIG. 1 and FIG. 3A, FIG. 3A is a cross-sectional view along line BB′ of FIG. 1 , which illustrates a laminated structure of the two-layer structure wires 13 of the embodiment. In this embodiment, the two-layer structure wire 13 includes a metal material layer 131 and a transparent conductive material layer 132. The metal material layer 131 is directly disposed on the surface of the substrate 11, and the transparent conductive material layer 132 is disposed on the metal material layer 131. It should be noted that in other embodiments of the present invention, other functional layers, such as a protective layer or an optical matching layer, may be disposed on the surface of the substrate 11. In this case, the metal material layer 131 is not directly disposed on the surface of the substrate 11, but is disposed. On the surface of the above functional layer. In general, in various embodiments of the present invention, the metal material layer 131 is disposed between the substrate 11 and the transparent conductive material layer 132. In the present embodiment, the transparent conductive material layer 132 covers the upper surface of the metal material layer 131, on the one hand, the metal material layer 131 is prevented from being oxidized by air during subsequent processes or products, and on the other hand, due to the transparent conductive material layer. The 132 itself has electrical conductivity and is disposed on the metal material layer 131. When the metal material layer 131 is damaged or slightly broken, it can be electrically conducted through the transparent conductive material layer 132 to achieve reinforcement and repair.
值得注意的是，在本實施例中，透明導電材料層132僅覆蓋於金屬材料層131的上表面，而在本發明其他的實施例中，雙層結構導線13還有其他實施方式，請參照圖3B，雙層結構導線13的透明導電材料層132包覆金屬材料層131，具體來說，透明導電材料層132不僅覆蓋金屬材料層131的上表面，還同時覆蓋金屬材料層131的多個側面，如此一來，金屬材料層131的各個表面皆未暴露於空氣中，從而更進一步降低了其被 空氣氧化的可能性。然而，本發明的雙層結構導線13的實施方式並不限於本實施例中所描述的結構。 It should be noted that in the present embodiment, the transparent conductive material layer 132 covers only the upper surface of the metal material layer 131, and in other embodiments of the present invention, the double-layer structure wire 13 has other embodiments, please refer to 3B, the transparent conductive material layer 132 of the double-layer structure wire 13 covers the metal material layer 131. Specifically, the transparent conductive material layer 132 covers not only the upper surface of the metal material layer 131 but also the plurality of metal material layers 131. On the side, as a result, each surface of the metal material layer 131 is not exposed to the air, thereby further reducing its The possibility of air oxidation. However, the embodiment of the two-layer structure wire 13 of the present invention is not limited to the structure described in the embodiment.
請再次參照圖1，在本實施例中，觸控面板10還包含一軟性電路板14及一控制器15，控制器15獨立於基板11，軟性電路板14一端電性連接控制器15，另一端電性連接複數雙層結構導線13。如前所述，複數雙層結構導線13電性連接感測電極結構12，故整體來看，感測電極結構12、複數雙層結構導線13、軟性電路板14及控制器15按照前後的順序逐個電性連接，形成一信號傳輸路徑。具體而言，使用者在基板11上進行的觸摸動作，通過感測電極結構12產生觸控信號，觸控信號通過相對應的雙層結構導線13傳輸至軟性電路板14，再經由軟性電路板14傳輸至控制器15，以供控制器15對其進行分析回饋；另一方面，由控制器15發出的驅動信號，先後經由軟性電路板14及複數雙層結構導線13傳輸至相對應的感測電極結構12中的第一軸向電極121或第二軸向電極122，使得用於驅動的軸向電極獲得驅動信號。 Referring to FIG. 1 again, in the embodiment, the touch panel 10 further includes a flexible circuit board 14 and a controller 15. The controller 15 is independent of the substrate 11. The flexible circuit board 14 is electrically connected to the controller 15 at one end. One end is electrically connected to the plurality of double-layer structure wires 13. As described above, the plurality of double-layer structure wires 13 are electrically connected to the sensing electrode structure 12, so that the sensing electrode structure 12, the plurality of double-layer structure wires 13, the flexible circuit board 14 and the controller 15 are in the order of the whole. Each of the electrical connections forms a signal transmission path. Specifically, the user performs a touch operation on the substrate 11 to generate a touch signal through the sensing electrode structure 12, and the touch signal is transmitted to the flexible circuit board 14 through the corresponding two-layer structure wire 13, and then through the flexible circuit board. 14 is transmitted to the controller 15 for the controller 15 to analyze and feed back; on the other hand, the driving signal sent by the controller 15 is transmitted to the corresponding sense via the flexible circuit board 14 and the plurality of double-layer structure wires 13 in succession. The first axial electrode 121 or the second axial electrode 122 in the electrode structure 12 is such that the axial electrode for driving obtains a drive signal.
在本實施例中，觸控面板10還包含一防護層(圖未示)，覆蓋於上述之感測電極結構12及複數雙層結構導線13，以防止該些元件在後續製程中被損壞或刮傷。 In this embodiment, the touch panel 10 further includes a protective layer (not shown) covering the sensing electrode structure 12 and the plurality of double-layer structure wires 13 to prevent the components from being damaged in a subsequent process or Scratch.
在圖1所繪示的實施例中，感測電極結構12的絕緣層123為絕緣隔點結構，第一軸向電極121與第二軸向電極122皆直接設置於基板11表面，構成單片玻璃觸控結構，其具有觸控面板整體厚度較小的優勢，本發明並不限於此，其亦可包含雙層玻璃(glass to glass)結構、玻璃薄膜(glass to film)結構或雙層薄膜(glass to film to film)結構。以下將以玻璃薄膜(glass to film)結構為例，描述本發明的另一實施例。 In the embodiment illustrated in FIG. 1 , the insulating layer 123 of the sensing electrode structure 12 is an insulating spacer structure, and the first axial electrode 121 and the second axial electrode 122 are directly disposed on the surface of the substrate 11 to form a single piece. The glass touch structure has the advantage that the overall thickness of the touch panel is small, and the present invention is not limited thereto, and may also include a glass to glass structure, a glass to film structure or a double film. (glass to film to film) structure. Another embodiment of the present invention will be described below by taking a glass to film structure as an example.
接著，請參照圖4，圖4為本發明另一較佳實施例中觸控面板疊層結構的示意圖，本實施例觸控面板的各元件及其連接關係與圖1所示的觸控面板10各元件及其連接關係大致相同，區別在於感測電極結構12的第一軸向電極121置於基板11上，第二軸向電極122設於薄膜層16上，而設有第二軸向電極122的薄膜層16藉由光學膠層17與設有第一軸向電極121的基板11進行貼合，可以理解的是，分別與第一軸向電極121及第 二軸向電極122對應連接的部分複數雙層結構導線13亦相對應的設置於基板11及/或薄膜層16上。 4 is a schematic diagram of a laminated structure of a touch panel according to another embodiment of the present invention. The components of the touch panel and the connection relationship thereof are the same as the touch panel shown in FIG. 1 . 10 components and their connection relationship are substantially the same, except that the first axial electrode 121 of the sensing electrode structure 12 is placed on the substrate 11, and the second axial electrode 122 is disposed on the film layer 16 and is provided with the second axial direction. The film layer 16 of the electrode 122 is bonded to the substrate 11 provided with the first axial electrode 121 by the optical adhesive layer 17, and it can be understood that the first axial electrode 121 and the first The partial plurality of double-layer structure wires 13 correspondingly connected to the two-axis electrodes 122 are also disposed on the substrate 11 and/or the film layer 16 correspondingly.
在本實施例中，複數雙層結構導線13部分設置於基板11上，其他部分設置於薄膜層16上，如此，複數雙層結構導線13所需的佈線區域可縮減，從而滿足觸控面板窄邊框的設計需求。值得注意的是，設置於薄膜層16上的複數雙層結構導線13的疊層關係為，金屬材料層131設置於薄膜層16與透明導電材料層132之間。 In this embodiment, the plurality of double-layer structure wires 13 are partially disposed on the substrate 11, and the other portions are disposed on the film layer 16. Thus, the wiring area required for the plurality of double-layer structure wires 13 can be reduced, thereby satisfying the narrowness of the touch panel. The design requirements of the border. It should be noted that the lamination relationship of the plurality of double-layer structure wires 13 disposed on the film layer 16 is such that the metal material layer 131 is disposed between the film layer 16 and the transparent conductive material layer 132.
在本實施例中，薄膜層16為一透明的膜結構，其可以是具有一定硬度的膜結構，也可以是厚度較薄的軟膜結構。薄膜層16的材料包括聚醯亞胺、聚丙烯、聚苯乙烯、丙烯腈-丁二烯-苯乙烯、聚對苯二甲酸乙二酯、聚氯乙烯、聚碳酸酯、聚乙烯、聚甲基丙烯酸甲酯、聚四氟乙烯、環烯烴共聚物或前述之組合。舉例來說，若薄膜層16為一軟膜結構，其可使用塗佈或其他適當的方法形成，其厚度可為約0.1微米至約15微米，較佳約為2微米至5微米，但本發明並不以此為限。薄膜層16相較於普通的玻璃基板厚度較薄，且此厚度範圍的薄膜層16具有良好的光學特性及柔韌性。 In the present embodiment, the film layer 16 is a transparent film structure, which may be a film structure having a certain hardness or a soft film structure having a small thickness. The material of the film layer 16 includes polyimide, polypropylene, polystyrene, acrylonitrile-butadiene-styrene, polyethylene terephthalate, polyvinyl chloride, polycarbonate, polyethylene, polymethyl. Methyl acrylate, polytetrafluoroethylene, cyclic olefin copolymer or a combination of the foregoing. For example, if the film layer 16 is a soft film structure, it may be formed by coating or other suitable method, and may have a thickness of about 0.1 micrometer to about 15 micrometers, preferably about 2 micrometers to 5 micrometers, but the present invention Not limited to this. The film layer 16 is thinner than a conventional glass substrate, and the film layer 16 of this thickness range has good optical properties and flexibility.
綜上所述，本發明將導線設計成兩層結構，以一透明導電材料層覆蓋一金屬材料層，以隔絕金屬材料層與空氣接觸，防止金屬材料層被氧化，並同時藉由透明導電材料層本身的導電特性，以補強金屬材料層，使得金屬材料層在出現破損或細微斷裂時能通過透明導電材料層來進行導通，從而提升了導線結構的穩定性。 In summary, the present invention designs the wire into a two-layer structure, and covers a metal material layer with a transparent conductive material layer to insulate the metal material layer from contact with air to prevent the metal material layer from being oxidized, and at the same time, through the transparent conductive material. The conductive properties of the layer itself reinforce the metal material layer so that the metal material layer can be turned on through the transparent conductive material layer in the event of breakage or fine breakage, thereby improving the stability of the wire structure.
以上所述僅為舉例性，而非為限制性者。任何未脫離本發明之精神與範疇，而對其進行之等效修改或變更，均應包含於後附之申請專利範圍中。 The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.
10‧‧‧觸控面板 10‧‧‧Touch panel
11‧‧‧基板 11‧‧‧Substrate
12‧‧‧感測電極結構 12‧‧‧Sensor electrode structure
121‧‧‧第一軸向電極 121‧‧‧First axial electrode
122‧‧‧第二軸向電極 122‧‧‧second axial electrode
123‧‧‧絕緣層 123‧‧‧Insulation
13‧‧‧雙層結構導線 13‧‧‧Two-layer structural wire
14‧‧‧軟性電路板 14‧‧‧Soft circuit board
15‧‧‧控制器 15‧‧‧ Controller
D1‧‧‧第一方向 D1‧‧‧ first direction
D2‧‧‧第二方向 D2‧‧‧ second direction
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| CN201410205253.2A CN105094401B (en) | 2014-05-15 | 2014-05-15 | Touch panel |
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| CN104635981B (en) * | 2014-11-26 | 2018-06-22 | 业成光电（深圳）有限公司 | Touch module and the touch control display apparatus with the touch module |
| TWI550525B (en) * | 2015-05-22 | 2016-09-21 | 南茂科技股份有限公司 | Wiring pattern forming method, fingerprint sensing circuit board and manufacturing method thereof |
| CN107229360B (en) * | 2016-03-23 | 2020-03-10 | 群创光电股份有限公司 | Touch panel, manufacturing method thereof and touch display device |
| CN106775110A (en) * | 2017-01-06 | 2017-05-31 | 上海增华电子科技有限公司 | A kind of contact panel of the novel graphene nano material of application |
| CN108932073A (en) * | 2017-05-22 | 2018-12-04 | 祥达光学（厦门）有限公司 | Touch panel and its pin configuration |
| CN109143637B (en) * | 2017-06-16 | 2020-02-18 | 京东方科技集团股份有限公司 | Panel manufacturing method, panel and display device |
| CN108846318B (en) * | 2018-05-24 | 2021-08-31 | 业泓科技(成都)有限公司 | Ultrasonic fingerprint identification device, manufacturing method thereof and electronic device applying ultrasonic fingerprint identification device |
| WO2022027576A1 (en) | 2020-08-07 | 2022-02-10 | Boe Technology Group Co., Ltd. | Display panel, display apparatus, and method of fabricating display panel |
| US11709558B2 (en) | 2020-08-07 | 2023-07-25 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display panel, display apparatus, and method of fabricating display panel |
| US11460949B2 (en) | 2020-11-06 | 2022-10-04 | Au Optronics Corporation | Electronic device |
| WO2022246585A1 (en) * | 2021-05-24 | 2022-12-01 | 京东方科技集团股份有限公司 | Thin film sensor and preparation method therefor |
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| CN102654797A (en) * | 2011-03-02 | 2012-09-05 | 东莞万士达液晶显示器有限公司 | Touch control panel |
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