TWI576727B - Touch device and electrostatic shielding method thereof - Google Patents
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Description
本發明是有關於觸控技術領域，且特別是有關於一種觸控裝置及其靜電屏蔽方法。 The present invention relates to the field of touch technology, and in particular to a touch device and an electrostatic shielding method thereof.
在現今各式消費性電子產品的市場中，個人數位助理(PDA)、行動電話(mobile Phone)、筆記型電腦(notebook)及平板電腦(tablet PC)等可攜式電子產品皆已廣泛的使用觸控面板(touch panel)作為其資料溝通的界面工具。此外，由於目前電子產品的設計皆以輕、薄、短、小為方向，因此在產品上無足夠空間容納如鍵盤、滑鼠等傳統輸入裝置，尤其在講求人性化設計的平板電腦需求的帶動下，觸控式面板已經一躍成為關鍵的零組件之一。 In today's market for consumer electronics products, portable electronic products such as personal digital assistants (PDAs), mobile phones, notebooks, and tablet PCs have been widely used. The touch panel is used as an interface tool for data communication. In addition, since the design of electronic products is currently in the direction of light, thin, short and small, there is not enough space on the product to accommodate traditional input devices such as keyboards and mice, especially in the demand for tablet PCs that are designed with humanity in mind. Next, touch panels have become one of the key components.
習知的觸控裝置發送或接收訊號時，為避免外部其他電子元件對觸控信號的信號干擾，會額外加入一層屏蔽層於觸控裝置結構內，利用靜電屏蔽原理，增加觸控裝置的抗干擾能力。然而增加此屏蔽層，往往會使得觸控裝置整體厚度增加，且製作成本較高，製程更加複雜化。 When the conventional touch device transmits or receives a signal, in order to avoid signal interference of other external electronic components on the touch signal, an additional shielding layer is added to the touch device structure, and the antistatic device is used to increase the resistance of the touch device. Interference ability. However, increasing the shielding layer tends to increase the overall thickness of the touch device, and the manufacturing cost is higher, and the process is more complicated.
有鑑於此，本發明提供一種觸控裝置及其靜電屏蔽方法，用作感 應觸控位置的導電軸，還可以作為屏蔽層使用，而不需要額外製作屏蔽層，以達到降低觸控裝置的整體厚度和製作成本，並簡化製程，同時可使觸控裝置具有抗干擾的作用。 In view of this, the present invention provides a touch device and an electrostatic shielding method thereof, which are used as a sense The conductive axis of the touch position can also be used as a shielding layer without additional shielding layer, so as to reduce the overall thickness and manufacturing cost of the touch device, and simplify the process, and at the same time, the touch device can be anti-interference. effect.
本發明提供一種觸控裝置，包括有複數條第一導電軸以及複數個第二導電單元，其中各該第一導電軸具有複數個開孔，且各該第二導電單元係位於該開孔中，複數個橋接結構，電連接於相鄰的各該第二導電單元，以及一絕緣層，位於該橋接結構與該第一導電軸、第二導電單元之間，該絕緣層上具有複數個孔洞，且該橋接結構透過該絕緣層上的該孔洞以將各該第二導電單元電連接，其中，當驅動該些第二導電單元時，該些第一導電軸接地或接一固定電位，以對該些第二導電單元進行靜電屏蔽。 The present invention provides a touch device including a plurality of first conductive shafts and a plurality of second conductive units, wherein each of the first conductive shafts has a plurality of openings, and each of the second conductive units is located in the openings a plurality of bridge structures electrically connected to the adjacent second conductive units and an insulating layer between the bridge structure and the first conductive shaft and the second conductive unit, the insulating layer having a plurality of holes And the bridging structure is electrically connected to the second conductive unit through the hole in the insulating layer, wherein when the second conductive unit is driven, the first conductive shafts are grounded or connected to a fixed potential to The second conductive units are electrostatically shielded.
本發明更提供一種觸控裝置的靜電屏蔽方法，包含以下步驟：首先驅動一第一導電軸，檢測該第一導電軸的輸出信號，得到一第一方向觸控位置信息，接著將該第一導電軸接地或接一固定電位，以對一第二導電軸進行靜電屏蔽，然後驅動該第二導電軸，檢測該第二導電軸的輸出信號，得到一第二方向觸控位置信息，之後結合該第一方向的觸控位置信息以及該第二方向觸控位置信息，計算出一觸控位置座標。 The present invention further provides a method for electrostatically shielding a touch device, comprising the steps of: first driving a first conductive shaft, detecting an output signal of the first conductive shaft, obtaining a first direction touch position information, and then first The conductive shaft is grounded or connected to a fixed potential to electrostatically shield a second conductive shaft, and then the second conductive shaft is driven to detect the output signal of the second conductive shaft to obtain a second direction touch position information, and then combined The touch position information in the first direction and the touch position information in the second direction calculate a touch position coordinate.
本發明提供的觸控裝置及其靜電屏蔽方法，用作感應觸控位置的導電軸，還可以作為屏蔽層使用，而不需要額外製作屏蔽層，降低 了觸控裝置的整體厚度和製作成本，並簡化了製程，同時可使觸控裝置達到抗干擾的作用。 The touch device and the electrostatic shielding method thereof are used as a conductive shaft for sensing a touch position, and can also be used as a shielding layer without additional shielding layer and reducing The overall thickness and manufacturing cost of the touch device are simplified, and the process is simplified, and the touch device can be made to resist interference.
為使熟習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 those of ordinary skill in the art to which the present invention pertains. .
為了方便說明，本發明之各圖式僅為示意以更容易了解本發明，其詳細的比例可依照設計的需求進行調整。在文中所描述對於圖形中相對元件之上下關係，在本領域之人皆應能理解其係指物件之相對位置而言，因此皆可以翻轉而呈現相同之構件，此皆應同屬本說明書所揭露之範圍，在此容先敘明。 For the convenience of description, the drawings of the present invention are only for the purpose of understanding the present invention, and the detailed proportions thereof can be adjusted according to the design requirements. As described in the text for the relative relationship between the relative elements in the figure, it should be understood by those skilled in the art that it refers to the relative position of the object, and therefore can be flipped to present the same member, which should belong to the same specification. The scope of the disclosure is hereby stated.
第1圖至第6圖繪示本發明第一較佳實施例的觸控裝置結構示意圖。請參考第1圖至第6圖，觸控裝置1包括複數條第一導電軸20、複數個第二導電單元32、複數個橋接結構62以及一絕緣層50。其中，各第一導電軸20具有複數個開孔22，各第二導電單元32係位於該開孔22中，各橋接結構62電連接於相鄰的各第二導電單元32，絕緣層50位於橋接結構62與第一導電軸20、第二導電單元32之間，以使橋接結構62電性絕緣於第一導電軸20，且絕緣層50上具有複數個孔洞52，橋接結構62透過該絕緣層50上的孔洞52將各第二導電單元32電連接。當驅動第二導電單元32時，該些第一 導電軸20接地或接一固定電位，以對該些第二導電單元32進行靜電屏蔽。 1 to 6 are schematic views showing the structure of a touch device according to a first preferred embodiment of the present invention. Referring to FIGS. 1 to 6 , the touch device 1 includes a plurality of first conductive shafts 20 , a plurality of second conductive units 32 , a plurality of bridge structures 62 , and an insulating layer 50 . Each of the first conductive shafts 20 has a plurality of openings 22, and each of the second conductive units 32 is located in the opening 22, and each of the bridge structures 62 is electrically connected to the adjacent second conductive units 32, and the insulating layer 50 is located. The bridging structure 62 is disposed between the first conductive shaft 20 and the second conductive unit 32 to electrically insulate the bridging structure 62 from the first conductive shaft 20, and the insulating layer 50 has a plurality of holes 52 through which the bridging structure 62 passes. The holes 52 in the layer 50 electrically connect the respective second conductive units 32. When the second conductive unit 32 is driven, the first The conductive shaft 20 is grounded or connected to a fixed potential to electrostatically shield the second conductive units 32.
根據本發明實施例提供的觸控裝置，下面依照其形成步驟分別對觸控裝置之組成構件進行說明，但觸控裝置之結構並不以此形成步驟為限。 According to the touch device provided by the embodiment of the present invention, the components of the touch device are separately described in the following steps, but the structure of the touch device is not limited to the forming step.
請繼續參考第1圖，本發明較佳實施例提供的一種觸控裝置，其還包括基板10，第一導電軸20以及第二導電單元32設置於該基板10上。進一步的，基板10規劃有一觸控區12與一周邊區14，複數條第一導電軸20與複數個第二導電單元32形成於觸控區12內。其中各第一導電軸20上具有複數個開孔22，且沿一第一方向平行排列(例如為Y軸)，各第二導電單元32位於各開孔22中，且第二導電單元32並未與第一導電軸20相交。本實施例中，基板10材料可選自玻璃、壓克力(PMMA)、聚氯乙烯(PVC)、聚丙烯(PP)、聚對苯二甲酸乙二醇酯(PET)、聚萘二甲酸乙二醇酯(PEN)、聚碳酸酯(PC)、聚苯乙烯(PS)等透明材料，第一導電軸20以及第二導電單元32材料可包括各種透明導電材料，例如，氧化銦錫(indium tin oxide,ITO)、氧化銦鋅(indium zinc oxide,IZO)、氧化鎘錫(cadmium tin oxide,CTO)、氧化鋁鋅(aluminum zinc oxide,AZO)、氧化銦鋅錫(indium tin zinc oxide,ITZO)、氧化鋅(zinc oxide)、氧化鎘(cadmium oxide)、氧化鉿(hafnium oxide,HfO)、氧化銦鎵鋅(indium gallium zinc oxide,InGaZnO)、氧化銦鎵鋅鎂(indium gallium zinc magnesium oxide,InGaZnMgO)、氧化銦鎵鎂(indium gallium magnesium oxide,InGaMgO)或氧化銦鎵鋁(indium gallium aluminum oxide,InGaAlO)等。另外，第一導電軸20、第二導電單元32與開孔22的形狀大致呈矩形，但當然可根據具體要求而設定，例如第二導電單元32與開孔22的形狀可以為圓形、菱形、正六邊形等，不以本實施例中的矩形為限。值得注意的是，各第二導電單元32四周均被第一導電軸20所包圍，此外，本實施例並不限定第一導電軸20與第二導電單元32的製作先後順序，可以於同一步驟形成，或是分別由兩個步驟形成皆可。 Referring to FIG. 1 , a touch device according to a preferred embodiment of the present invention further includes a substrate 10 . The first conductive shaft 20 and the second conductive unit 32 are disposed on the substrate 10 . Further, the substrate 10 is planned to have a touch area 12 and a peripheral area 14 , and a plurality of first conductive shafts 20 and a plurality of second conductive units 32 are formed in the touch area 12 . Each of the first conductive shafts 20 has a plurality of openings 22 and is arranged in parallel along a first direction (for example, a Y-axis). Each of the second conductive units 32 is located in each of the openings 22, and the second conductive unit 32 is Not intersecting the first conductive shaft 20. In this embodiment, the material of the substrate 10 may be selected from the group consisting of glass, acrylic (PMMA), polyvinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), and polyphthalic acid. A transparent material such as ethylene glycol ester (PEN), polycarbonate (PC), polystyrene (PS), etc., the first conductive shaft 20 and the second conductive unit 32 material may include various transparent conductive materials, for example, indium tin oxide ( Indium tin oxide (ITO), indium zinc oxide (IZO), cadmium tin oxide (CTO), aluminum zinc oxide (AZO), indium tin zinc oxide (indium tin zinc oxide, ITZO), zinc oxide, cadmium oxide, hafnium oxide (HfO), indium gallium zinc oxide (InGaZnO), indium gallium zinc zinc oxide (indium) Gallium zinc magnesium oxide, InGaZnMgO), indium gallium magnesium oxide (InGaMgO) or indium gallium aluminum oxide (InGaAlO). In addition, the shape of the first conductive shaft 20, the second conductive unit 32 and the opening 22 is substantially rectangular, but may of course be set according to specific requirements. For example, the shape of the second conductive unit 32 and the opening 22 may be circular or diamond. , a regular hexagon, etc., is not limited to the rectangle in this embodiment. It should be noted that each of the second conductive units 32 is surrounded by the first conductive shaft 20. In addition, the embodiment does not limit the order of the first conductive shaft 20 and the second conductive unit 32. Formed, or formed by two steps.
接著如第2圖所示，形成複數條第一導線42於觸控區12與周邊區14內以電連接第一導電軸20；以及形成複數條第二導線44僅於周邊區14內，各第二導線44將與後續完成的第二導電軸電性連接，第一導線42與第二導線44另與外部的一微處理器(圖未示)相連，第一導線42與第二導線44可傳輸觸控裝置上所發出的訊號至微處理器。第一導線42與第二導線44的材質可選自金屬例如鋁、銅、銀等或是上述透明導電材料，當第一導線42與第二導線44的材質選用與第一導電軸20和第二導電單元32相同的材質時，第一導線42與第二導線44可與第一導電軸20和第二導電單元32同時製作。值得注意的是，此時第二導線44尚未與第二導線單元32電性連接。 Then, as shown in FIG. 2, a plurality of first wires 42 are formed in the touch region 12 and the peripheral region 14 to electrically connect the first conductive shaft 20; and a plurality of second wires 44 are formed only in the peripheral region 14, The second wire 44 is electrically connected to the subsequently completed second conductive shaft. The first wire 42 and the second wire 44 are further connected to an external microprocessor (not shown). The first wire 42 and the second wire 44 are connected. The signal sent from the touch device can be transmitted to the microprocessor. The material of the first wire 42 and the second wire 44 may be selected from a metal such as aluminum, copper, silver, or the like or the above transparent conductive material. When the materials of the first wire 42 and the second wire 44 are selected from the first conductive axis 20 and the first When the two conductive units 32 are of the same material, the first conductive line 42 and the second conductive line 44 can be fabricated simultaneously with the first conductive shaft 20 and the second conductive unit 32. It should be noted that the second wire 44 is not yet electrically connected to the second wire unit 32 at this time.
然後，全面性形成一絕緣層於觸控區12內並覆蓋於第一導電軸20及部分第二導電單元32上，單看絕緣層圖案的上視圖如第3A圖 所示，絕緣層50中間有複數個孔洞52，將絕緣層50覆蓋於觸控區12後，如第3B圖所示，孔洞52會露出部分第二導電單元32，作為後續製程橋接結構與第二導電單元32的接觸孔。本實施例中，絕緣層50為各種不導電材質，例如聚亞醯胺(Polyimide，PI)、氧化矽(SiO2)、氮化矽(SiN)、氮氧化矽(SiON)、碳化矽(SiC)等。絕緣層50形成後，僅露出第二導電單元32以及部份的第一導線42與第二導線44，其餘部份皆被絕緣層50覆蓋。 Then, an insulating layer is formed in the touch region 12 and covers the first conductive shaft 20 and a portion of the second conductive unit 32. The upper view of the insulating layer pattern is as shown in FIG. 3A, and the insulating layer 50 is in the middle. A plurality of holes 52 are formed. After the insulating layer 50 is covered on the touch area 12, as shown in FIG. 3B, the hole 52 exposes a portion of the second conductive unit 32 as a contact hole between the subsequent process bridge structure and the second conductive unit 32. . In this embodiment, the insulating layer 50 is made of various non-conductive materials, such as polyimide (PI), cerium oxide (SiO 2 ), tantalum nitride (SiN), cerium oxynitride (SiON), tantalum carbide (SiC). )Wait. After the insulating layer 50 is formed, only the second conductive unit 32 and a portion of the first conductive line 42 and the second conductive line 44 are exposed, and the remaining portions are covered by the insulating layer 50.
接著，形成橋接結構於絕緣層50上，此時本發明觸控裝置的上視圖如第4圖所示，而第5圖則繪示第4圖中沿著剖面線II’的剖面示意圖。請參閱第4~5圖，每一個橋接結構62從側面看呈現橋型，橋接結構62會跨越絕緣層50且電連接兩個第二導電單元32，使得各第二導電單元32被橋接結構62串連起來以形成複數條第二導電軸30。同時，橋接結構62也延伸至周邊區14，與各條第二導線44電性連接，經由橋接結構62與第二導線44的連結，得以將第二導電軸30的訊號傳送至外部的微處理器。本發明實施例提供的觸控裝置，由於第一導電軸20環繞在各個第二導電單元32的外圍，因此第一導電軸20可作為第二導電單元32的屏蔽層，也就是說，當驅動第二導電單元32時時，使第一導電軸20接地或連接一固定電位，可有效屏蔽外界訊號對第二導電軸30的干擾，因而降低整體觸控裝置抗訊號干擾的程度，而且由於本發明中第一導電軸20既可用於感測觸控位置，還可以當做屏蔽層使用，因此不需要額外製作屏蔽層，可降低觸控裝置整體厚度，且可達到簡化製程、節省成本的功效， 同時可使觸控裝置具有抗干擾的作用。 Next, a bridge structure is formed on the insulating layer 50. At this time, a top view of the touch device of the present invention is shown in Fig. 4, and Fig. 5 is a cross-sectional view taken along line II' in Fig. 4. Referring to FIGS. 4-5, each of the bridge structures 62 exhibits a bridge shape when viewed from the side. The bridge structure 62 spans the insulating layer 50 and electrically connects the two second conductive units 32 such that the second conductive units 32 are bridged by the structure 62. The strings are connected in series to form a plurality of second conductive shafts 30. At the same time, the bridging structure 62 also extends to the peripheral region 14 and is electrically connected to each of the second wires 44. The connection of the second conductive shaft 30 to the external micro-processing is performed via the connection of the bridging structure 62 and the second wire 44. Device. In the touch device provided by the embodiment of the present invention, since the first conductive shaft 20 surrounds the periphery of each of the second conductive units 32, the first conductive shaft 20 can serve as a shielding layer of the second conductive unit 32, that is, when driving When the second conductive unit 32 is grounded or connected to a fixed potential, the interference of the external signal on the second conductive shaft 30 can be effectively shielded, thereby reducing the degree of anti-signal interference of the overall touch device, and In the invention, the first conductive shaft 20 can be used for sensing the touch position, and can also be used as a shielding layer, so that no additional shielding layer is needed, the overall thickness of the touch device can be reduced, and the process and the cost saving effect can be achieved. At the same time, the touch device can be made to have an anti-interference effect.
最後，如第6圖所示，可疊設一保護層70於第一導線42、第二導線44以及橋接結構62上，保護元件不受空氣中水氣與氧氣的破壞，即完成本發明的觸控裝置1。保護層70可包括無機材料，例如，氮化矽(silicon nitride)、氧化矽(silicon oxide)與氮氧化矽(silicon oxynitride)、有機材料，例如，丙烯酸類樹脂(acrylic resin)其它適合之材料。 Finally, as shown in FIG. 6, a protective layer 70 may be stacked on the first wire 42, the second wire 44, and the bridge structure 62 to protect the component from moisture and oxygen in the air, that is, to complete the present invention. Touch device 1. The protective layer 70 may include an inorganic material such as silicon nitride, silicon oxide and silicon oxynitride, an organic material such as an acrylic resin, and other suitable materials.
另外，本發明實施例提供的觸控裝置還可以包括至少一顯示單元(圖未示)，位於基板之下方。顯示單元可以為液晶顯示層(LCD)或其他光學模組。基板與顯示單元之間無一屏蔽層存在，而是採用用作感應觸控位置的第一導電軸兼作為屏蔽層使用，用於屏蔽顯示單元或其他光學模組對觸控裝置產生的訊號干擾，如此，可降低觸控裝置的整體厚度，又可降低成本，簡化製程。 In addition, the touch device provided by the embodiment of the present invention may further include at least one display unit (not shown) located below the substrate. The display unit can be a liquid crystal display layer (LCD) or other optical module. There is no shielding layer between the substrate and the display unit, but the first conductive shaft used as the sensing touch position is also used as a shielding layer for shielding the signal interference generated by the display unit or other optical modules on the touch device. In this way, the overall thickness of the touch device can be reduced, the cost can be reduced, and the process can be simplified.
本發明可應用在各種觸控裝置中，例如手機，個人數位助理(PDA，衛星導航系統(GPS)等等，對於其他的應用，亦可以利用印製電路板(PCB)或者軟性線路板(Flexible Printed Circuit；FPC)來製作本發明的觸控裝置。 The invention can be applied to various touch devices, such as mobile phones, personal digital assistants (PDAs, satellite navigation systems (GPS), etc., for other applications, it is also possible to use printed circuit boards (PCBs) or flexible circuit boards (Flexible). Printed Circuit; FPC) to make the touch device of the present invention.
值得注意的是，本實施例中，各第一導電軸20沿著第一方向平行排列(例如為Y軸)，由橋接結構62與各個第二導電單元32串接 而成的第二導電軸30係沿著一第二方向平行排列(例如為X軸)，第一方向與第二方向較佳為互相垂直，但並不限於此，而可依實際需求排列。 It should be noted that, in this embodiment, the first conductive shafts 20 are arranged in parallel along the first direction (for example, the Y-axis), and are connected in series with the respective second conductive units 32 by the bridge structure 62. The second conductive shafts 30 are arranged in parallel along a second direction (for example, the X-axis). The first direction and the second direction are preferably perpendicular to each other, but are not limited thereto, and may be arranged according to actual needs.
相較先前技術而言，本發明提供的觸控裝置，用作感應觸控位置的導電軸，還可以作為屏蔽層使用，而不需要額外製作屏蔽層，降低了觸控裝置的整體厚度和製作成本，並簡化了製程，並且能夠減少外界電子信號干擾，提高觸控裝置的穩定度。 Compared with the prior art, the touch device provided by the present invention is used as a conductive shaft for sensing a touch position, and can also be used as a shielding layer without requiring an additional shielding layer, thereby reducing the overall thickness and fabrication of the touch device. Cost, and simplify the process, and can reduce external electronic signal interference and improve the stability of the touch device.
下文將針對本發明之觸控裝置的不同實施樣態進行說明，且為簡化說明，以下說明主要針對各實施例不同之處進行詳述，而不再對相同之處作重覆贅述。此外，本發明之各實施例中相同之元件係以相同之標號進行標示，以利於各實施例間互相對照。 The different embodiments of the touch device of the present invention are described below, and the following description is mainly for the sake of simplification of the description of the embodiments, and the details are not repeated. In addition, the same elements in the embodiments of the present invention are denoted by the same reference numerals to facilitate the comparison between the embodiments.
第7圖繪示本發明第二較佳實施例的局部結構剖面圖，請參考第7圖，與第一實施例不同之處在於，橋接結構62設置於該基板10上，也就是說，觸控裝置2具有一基板10，之後於基板10上先形成橋接結構62，然後覆蓋一絕緣層50，至少曝露出部分橋接結構62，接著形成複數條第一導電軸20與被第一導電軸20包圍的複數個第二導電單元32，值得注意的是，形成第二導電單元32時，第二導電單元32會藉由絕緣層50上的孔洞，接觸到下方的橋接結構62，也就是說，每兩個第二導電單元32會藉由一條橋接結構62電連結，而各個第二導電單元32將會彼此導通，進而串接成為第二導 電軸。最後再疊設一層保護層70於第一導電軸20以及該些第二導電單元32上，完成本發明第二較佳實施例的觸控裝置2。本實施例的觸控裝置由於橋接結構62大部份被絕緣層50覆蓋，因此從觸控裝置頂部看來，橋接結構62可隱藏於絕緣層50下方，增加觸控裝置2的美觀度。同樣本實施例也可應用在多種不同的產品上，另外本實施例中所用的元件材料也與第一較佳實施例相同，在此不再贅述。 7 is a cross-sectional view showing a partial structure of a second preferred embodiment of the present invention. Referring to FIG. 7, the difference from the first embodiment is that the bridge structure 62 is disposed on the substrate 10, that is, touched. The control device 2 has a substrate 10, and then a bridge structure 62 is formed on the substrate 10, and then an insulating layer 50 is covered, at least a portion of the bridge structure 62 is exposed, and then a plurality of first conductive shafts 20 and a first conductive shaft 20 are formed. Surrounding a plurality of second conductive units 32, it is noted that when the second conductive unit 32 is formed, the second conductive unit 32 contacts the underlying bridge structure 62 by the holes in the insulating layer 50, that is, Each of the two second conductive units 32 is electrically connected by a bridge structure 62, and each of the second conductive units 32 will be electrically connected to each other, thereby being cascaded to become a second guide. Electric axis. Finally, a protective layer 70 is stacked on the first conductive shaft 20 and the second conductive units 32 to complete the touch device 2 of the second preferred embodiment of the present invention. Since the bridging structure 62 of the present embodiment is mostly covered by the insulating layer 50, the bridging structure 62 can be hidden under the insulating layer 50 from the top of the touch device, thereby increasing the aesthetics of the touch device 2. The present embodiment can also be applied to a variety of different products. The component materials used in this embodiment are also the same as those in the first preferred embodiment, and are not described herein again.
請參考第8圖，是繪示本發明的第三較佳實施例的結構上視示意圖。本實施例與第一較佳實施例不同之處在於，觸控裝置3將第一導電軸分為兩條，分別為第一左導電軸24與第一右導電軸26，第一左導電軸24與第一右導電軸26中間定義有一開孔區域28，而各第二導電單元32即位於該開孔區域28中。本實施例中，由於將原先一條第一導電軸分為兩條，分別由兩條導線42a以及導線42b相連，因此可進一步提升第一方向(本實施例中為Y方向)的測量精度，同樣地，本實施例中第一左導電軸24與第一右導電軸26包圍各個第二導電單元32，因此也可達到屏蔽效用，其具有與本發明第一實施例相同的優點。 Please refer to FIG. 8 , which is a schematic top view showing the structure of a third preferred embodiment of the present invention. The first embodiment differs from the first preferred embodiment in that the touch device 3 divides the first conductive shaft into two, respectively being a first left conductive shaft 24 and a first right conductive shaft 26, and a first left conductive shaft. An opening area 28 is defined between the 24 and the first right conductive shaft 26, and each of the second conductive units 32 is located in the opening area 28. In this embodiment, since the original one first conductive shaft is divided into two, which are respectively connected by the two wires 42a and the wires 42b, the measurement accuracy of the first direction (the Y direction in the embodiment) can be further improved. In this embodiment, the first left conductive shaft 24 and the first right conductive shaft 26 surround the respective second conductive units 32, so that the shielding effect can also be achieved, which has the same advantages as the first embodiment of the present invention.
請參考第9~11圖，其分別繪示本發明第一較佳實施例的另外三種實施態樣的局部結構上視示意圖，為方便說明，僅繪示部分的第一導電軸以及一個第二導電單元，其中與本發明第一較佳實施例不同之處在於，各實施態樣中的第二導電單元為圖案化的導電單元， 以增進整體觸控裝置的透光度。請參閱第9圖，此實施態樣中的各個第二導電單元34以水平方向S形狀替代原先呈現矩形的第二導電單元。請參閱第10圖，此實施態樣中的各個第二導電單元36以垂直方向S形狀替代原先呈現矩形的第二導電單元。至於以上第9圖與第10圖的實施態樣中S狀的第二導電單元形成方式，可藉由微影蝕刻等步驟，先形成矩形的第二導電單元，再於其上蝕刻複數個長條狀開口，或是直接印刷形成排列呈S狀的第二導電單元。再請參閱第11圖，此實施態樣中的各個第二導電單元38中央則具有複數個小孔洞。上述各實施態樣中所用的元件材料與第一較佳實施例相同，在此不再贅述。以上不同變化的實施態樣，皆可提升整體觸控裝置的透光度，當然，上述的不同實施態樣也可與本發明第二或第三較佳實施例整合，而不限於僅對第一較佳實施例進行變化。 Please refer to FIG. 9 to FIG. 11 , which are respectively partially schematic top views showing three other embodiments of the first preferred embodiment of the present invention. For convenience of description, only a portion of the first conductive axis and a second portion are illustrated. a conductive unit, which is different from the first preferred embodiment of the present invention in that the second conductive unit in each embodiment is a patterned conductive unit. To improve the transparency of the overall touch device. Referring to FIG. 9, each of the second conductive units 34 in this embodiment replaces the second conductive unit that originally presents a rectangle in a horizontal direction S shape. Referring to FIG. 10, each of the second conductive units 36 in this embodiment replaces the second conductive unit that originally presents a rectangle in a vertical direction S shape. As for the formation manner of the S-shaped second conductive unit in the embodiment of the above FIG. 9 and FIG. 10, the rectangular second conductive unit may be formed by a photolithography etching process, and then a plurality of long electrodes are etched thereon. Strip openings, or direct printing to form a second conductive unit arranged in an S shape. Referring again to FIG. 11, each of the second conductive units 38 in this embodiment has a plurality of small holes in the center. The component materials used in the above embodiments are the same as those in the first preferred embodiment, and are not described herein again. The implementation of the above different changes can improve the transmittance of the overall touch device. Of course, the different embodiments described above can also be integrated with the second or third preferred embodiment of the present invention, and are not limited to only the first A preferred embodiment is subject to change.
可理解的是，本發明的觸控裝置並不以上述實施例所描述的結構或方法為限，只要符合：第一導電軸與第二導電軸位於同一層，橋接結構位於另外一層，且第一導電軸可同時作為屏蔽層使用，都屬於本發明所涵蓋的範圍。 It is to be understood that the touch device of the present invention is not limited to the structure or method described in the above embodiments, as long as the first conductive axis and the second conductive axis are in the same layer, and the bridge structure is located on another layer, and A conductive shaft can be used as a shield simultaneously, and is within the scope of the present invention.
根據上述實施例提供的觸控裝置，本發明實施例還提供了所述觸控裝置的靜電屏蔽方法。第12圖繪示本發明觸控裝置的靜電屏蔽方法的流程圖，請參考第12圖，本發明實施例提供的觸控裝置的靜電屏蔽方法具體來說包括以下步驟： According to the touch device provided by the above embodiment, the embodiment of the present invention further provides an electrostatic shielding method of the touch device. 12 is a flow chart of a method for electrostatically shielding a touch device according to the present invention. Referring to FIG. 12, the method for electrostatically shielding a touch device according to an embodiment of the present invention includes the following steps:
S1：驅動第一導電軸，並檢測第一導線的輸出信號，可得到第一 方向的觸控位置信息。 S1: driving the first conductive shaft and detecting the output signal of the first wire to obtain the first Directional touch location information.
S2：將第一導電軸接地或接一固定電位。在該步驟中，第一導電軸接地或接一固定電位，也即對第二導電軸形成了靜電屏蔽的作用，以減少外界雜訊信號對後續檢測第二導線的輸出信號的干擾。 S2: grounding or connecting a first conductive shaft to a fixed potential. In this step, the first conductive shaft is grounded or connected to a fixed potential, that is, an electrostatic shielding effect is formed on the second conductive shaft to reduce the interference of the external noise signal on the subsequent detection of the output signal of the second wire.
S3：驅動第二導電軸，檢測第二導線的輸出信號，得到第二方向觸控位置信息。 S3: driving the second conductive shaft, detecting an output signal of the second wire, and obtaining second-direction touch position information.
S4：結合第一、二方向的觸控位置信息，可計算得出觸控位置座標。 S4: Combining the touch position information of the first and second directions, the coordinate of the touch position can be calculated.
在上述實施例中，驅動第一導電軸和驅動第二導電軸的驅動信號為一交流信號，例如脈衝訊號或正弦波信號。第一導線和第二導線的輸出信號可為由觸控引起的自電容變化量。 In the above embodiment, the driving signal for driving the first conductive shaft and driving the second conductive shaft is an alternating current signal, such as a pulse signal or a sine wave signal. The output signals of the first wire and the second wire may be the amount of self-capacitance change caused by the touch.
上述實施例的觸控裝置的靜電屏蔽方法，將第一導電軸既可用於感應觸控位置，還可以作為屏蔽層使用，如此，可能夠減少外界電子信號的干擾，提高觸控位置偵測的準確度。 In the electrostatic shielding method of the touch device of the above embodiment, the first conductive shaft can be used for sensing the touch position and can also be used as a shielding layer, so that the interference of external electronic signals can be reduced, and the touch position detection can be improved. Accuracy.
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.
1‧‧‧觸控裝置 1‧‧‧ touch device
2‧‧‧觸控裝置 2‧‧‧Touch device
3‧‧‧觸控裝置 3‧‧‧ touch device
10‧‧‧基板 10‧‧‧Substrate
12‧‧‧觸控區 12‧‧‧ touch area
14‧‧‧周邊區 14‧‧‧The surrounding area
20‧‧‧第一導電軸 20‧‧‧First conductive shaft
22‧‧‧開孔 22‧‧‧Opening
24‧‧‧第一左導電軸 24‧‧‧First left conductive shaft
26‧‧‧第一右導電軸 26‧‧‧First right conductive shaft
28‧‧‧開孔區域 28‧‧‧opening area
30‧‧‧第二導電軸 30‧‧‧Second conductive shaft
32‧‧‧第二導電單元 32‧‧‧Second conductive unit
34‧‧‧第二導電單元 34‧‧‧Second conductive unit
36‧‧‧第二導電單元 36‧‧‧Second conductive unit
38‧‧‧第二導電單元 38‧‧‧Second conductive unit
42‧‧‧第一導線 42‧‧‧First wire
42a‧‧‧導線 42a‧‧‧Wire
42b‧‧‧導線 42b‧‧‧Wire
44‧‧‧第二導線 44‧‧‧second wire
50‧‧‧絕緣層 50‧‧‧Insulation
52‧‧‧孔洞 52‧‧‧ holes
62‧‧‧橋接結構 62‧‧‧Bridge structure
70‧‧‧保護層 70‧‧‧Protective layer
S1~S4‧‧‧步驟 S1~S4‧‧‧ steps
第1圖繪示本發明第一較佳實施例的結構上視示意圖。 1 is a schematic top view showing the structure of a first preferred embodiment of the present invention.
第2圖繪示本發明第一較佳實施例的結構上視示意圖。 FIG. 2 is a schematic top view showing the structure of the first preferred embodiment of the present invention.
第3A圖繪示本發明第一較佳實施例中絕緣層上視示意圖。 FIG. 3A is a schematic top view of the insulating layer in the first preferred embodiment of the present invention.
第3B圖繪示本發明第一較佳實施例的結構上視示意圖。 FIG. 3B is a schematic top view showing the structure of the first preferred embodiment of the present invention.
第4圖繪示本發明第一較佳實施例的結構上視示意圖。 FIG. 4 is a schematic top view showing the structure of the first preferred embodiment of the present invention.
第5圖繪示第4圖的局部I之結構剖面示意圖。 Fig. 5 is a cross-sectional view showing the structure of a portion I of Fig. 4.
第6圖繪示本發明第一較佳實施例的結構剖面示意圖。 Figure 6 is a cross-sectional view showing the structure of the first preferred embodiment of the present invention.
第7圖繪示本發明第二較佳實施例的局部結構剖面示意圖。 Figure 7 is a cross-sectional view showing a partial structure of a second preferred embodiment of the present invention.
第8圖繪示本發明第三較佳實施例的結構上視示意圖。 Figure 8 is a schematic top plan view showing a third preferred embodiment of the present invention.
第9~11圖分別繪示本發明第一較佳實施例的另三種實施態樣的局部結構上視示意圖。 9 to 11 are schematic top plan views showing the other three embodiments of the first preferred embodiment of the present invention.
第12圖繪示本發明觸控裝置的靜電屏蔽方法的流程圖。 FIG. 12 is a flow chart showing an electrostatic shielding method of the touch device of the present invention.
10‧‧‧基板 10‧‧‧Substrate
12‧‧‧觸控區 12‧‧‧ touch area
14‧‧‧周邊區 14‧‧‧The surrounding area
20‧‧‧第一導電軸 20‧‧‧First conductive shaft
30‧‧‧第二導電軸 30‧‧‧Second conductive shaft
32‧‧‧第二導電單元 32‧‧‧Second conductive unit
44‧‧‧第二導線 44‧‧‧second wire
50‧‧‧絕緣層 50‧‧‧Insulation
62‧‧‧橋接結構 62‧‧‧Bridge structure
Claims (17)
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