TWM556395U - Conductive film substrate, touch screen sensor and module - Google Patents
Conductive film substrate, touch screen sensor and module Download PDFInfo
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Abstract
本新型創作提供一種即便被彎折電極也不易斷線的導電 膜基板、觸控式螢幕感測器及模組。本新型創作為預定在彎折預定區域處彎折的導電膜基板(1)，且具備基板(2)、以及設置在基板(2)上且在俯視導電膜基板(1)時彼此交叉的多個第一電極(3)及第二電極(4)，導電膜基板(1)被彎折預定區域(α)劃分成第一導電膜基板部(1a)與第二導電膜基板部(1b)，第一電極(3)及第二電極(4)是設置在基板上的第一導電膜基板部(1a)及第二導電膜基板部(1b)中的雙方，第一電極(3)及第二電極(4)不配置在彎折預定區域(α)上。 The novel creation provides a conductive which is not easily broken even if the electrode is bent. Film substrate, touch screen sensor and module. The present invention is a conductive film substrate (1) which is intended to be bent at a predetermined bending region, and is provided with a substrate (2), and is disposed on the substrate (2) and intersects each other when the conductive film substrate (1) is viewed in plan. a first electrode (3) and a second electrode (4), the conductive film substrate (1) is divided into a first conductive film substrate portion (1a) and a second conductive film substrate portion (1b) by a predetermined bending region (α) The first electrode (3) and the second electrode (4) are both the first conductive film substrate portion (1a) and the second conductive film substrate portion (1b) provided on the substrate, and the first electrode (3) and The second electrode (4) is not disposed on the predetermined bending region (α).
Description
本新型創作涉及一種導電膜基板、觸控式螢幕感測器及模組。 The novel creation relates to a conductive film substrate, a touch screen sensor and a module.
在個人電腦(personal computer)、電視等大型電子設備、汽車導航(car navigation)、手機、電子詞典等小型電子設備、辦公自動化(Office Automation，OA)/工廠自動化(Factory Automation，FA)設備等的顯示裝置等中，一直使用液晶顯示元件或觸控式螢幕(觸控式螢幕感測器)。 In small electronic devices such as personal computers, televisions, car navigation, mobile phones, electronic dictionaries, office automation (OA), factory automation (FA) equipment, etc. In a display device or the like, a liquid crystal display element or a touch screen (touch screen sensor) is always used.
關於觸控式螢幕，已將各種方式加以實際應用。近年來正推進利用靜電電容方式的觸控式螢幕。通常在靜電電容方式的觸控式螢幕中，為了表現X軸及Y軸的二維座標，多個X電極與和X電極正交的多個Y電極形成二層結構。關於形成這些電極的材料，自顯示出高的可見光透射率的方面來看，氧化銦錫(Indium Tin Oxide，ITO)、氧化銦或氧化錫成為主流(例如參照專利文獻1)。 Regarding the touch screen, various methods have been put into practical use. In recent years, touch screens using electrostatic capacitance have been advanced. Generally, in a capacitive touch screen, in order to express two-dimensional coordinates of the X-axis and the Y-axis, a plurality of X electrodes and a plurality of Y electrodes orthogonal to the X electrodes form a two-layer structure. In the case of exhibiting a high visible light transmittance, indium tin oxide (ITO), indium oxide or tin oxide is dominant in the material for forming these electrodes (see, for example, Patent Document 1).
在製作這種觸控式螢幕中所用的觸控式螢幕感測器時，例如一直使用導電膜基板(積層體)，所述導電膜基板(積層體) 具備基板；以及設置在其表面上的透明電極(X電極或Y電極)、用來與外部電路連接的金屬佈線、及將金屬佈線與透明電極連接的連接電極。 In the production of the touch screen sensor used in such a touch screen, for example, a conductive film substrate (layered body) is always used, and the conductive film substrate (layered body) A substrate; a transparent electrode (X electrode or Y electrode) provided on the surface thereof; a metal wiring for connection to an external circuit; and a connection electrode for connecting the metal wiring to the transparent electrode.
[專利文獻1]日本專利特開2012-128605號公報 [Patent Document 1] Japanese Patent Laid-Open Publication No. 2012-128605
此外，關於如上文所述那樣的大型電子設備、小型電子設備及顯示裝置等，也考慮到將來採用將觸控式螢幕彎折的結構。但是，若將觸控式螢幕彎折，則有可能在其彎折預定區域上電極斷線。 Further, regarding a large-sized electronic device, a small-sized electronic device, a display device, and the like as described above, it is also considered to adopt a structure in which a touch panel is bent in the future. However, if the touch screen is bent, it is possible that the electrode is broken at a predetermined area where the bending is performed.
因此，本新型創作的目的在於提供一種即便被彎折電極也不易斷線的導電膜基板、觸控式螢幕感測器及模組。 Therefore, the object of the present invention is to provide a conductive film substrate, a touch screen sensor and a module which are not easily broken even if the electrode is bent.
本新型創作的導電膜基板是一種預定在彎折預定區域處彎折的導電膜基板，並且具備基板、以及設置在基板上並且在俯視導電膜基板時彼此交叉的多個第一電極及第二電極，導電膜基板被彎折預定區域劃分成第一導電膜基板部與第二導電膜基板部，第一電極及第二電極是設置在基板上的第一導電膜基板部及第二導電膜基板部中的雙方，第一電極及第二電極不配置在彎折 預定區域上。 The conductive film substrate created by the present invention is a conductive film substrate which is bent at a predetermined bending region, and includes a substrate, and a plurality of first electrodes and a second which are disposed on the substrate and intersect each other when the conductive film substrate is viewed in plan The electrode, the conductive film substrate is divided into the first conductive film substrate portion and the second conductive film substrate portion by the predetermined bending region, and the first electrode and the second electrode are the first conductive film substrate portion and the second conductive film disposed on the substrate Both of the substrate portions, the first electrode and the second electrode are not disposed in the bend On the reservation area.
本新型創作的導電膜基板中，第一電極及第二電極不配置在彎折預定區域上，因此即便將導電膜基板在彎折預定區域處彎折，第一電極及第二電極也不被彎折。因此，即便將導電膜基板在彎折預定區域處彎折，也可抑制電極斷線。 In the conductive film substrate of the present invention, the first electrode and the second electrode are not disposed on the predetermined bending region, so even if the conductive film substrate is bent at the predetermined bending region, the first electrode and the second electrode are not Bend. Therefore, even if the conductive film substrate is bent at a predetermined bending region, the electrode breakage can be suppressed.
所述導電膜基板中，第一電極與第二電極也可在俯視導電膜基板時正交。所述導電膜基板中，第一電極與第二電極在俯視導電膜基板時正交，因此可遍佈基板地配置第一電極及第二電極。 In the conductive film substrate, the first electrode and the second electrode may be orthogonal to each other when the conductive film substrate is viewed in plan. In the conductive film substrate, since the first electrode and the second electrode are orthogonal to each other when the conductive film substrate is viewed in plan, the first electrode and the second electrode may be disposed over the substrate.
所述導電膜基板中，第一電極也可在與彎折預定區域正交的方向上延伸。所述導電膜基板中，第一電極在與彎折預定區域正交的方向上延伸，因此可在基板上有效率地配置第一電極。 In the conductive film substrate, the first electrode may also extend in a direction orthogonal to a predetermined region to be bent. In the conductive film substrate, since the first electrode extends in a direction orthogonal to a predetermined region to be bent, the first electrode can be efficiently disposed on the substrate.
所述導電膜基板中，第二電極也可在與彎折預定區域平行的方向上延伸。所述導電膜基板中，第二電極在與彎折預定區域平行的方向上延伸，因此可在彎折預定區域的附近配置第二電極。 In the conductive film substrate, the second electrode may also extend in a direction parallel to a predetermined region to be bent. In the conductive film substrate, the second electrode extends in a direction parallel to the predetermined bending region, so that the second electrode can be disposed in the vicinity of the predetermined bending region.
所述導電膜基板中，也可具備使第一電極與第二電極及基板絕緣的第一樹脂層、以及使第二電極與第一電極及基板絕緣的第二樹脂層。所述導電膜基板中，利用第一樹脂層及第二樹脂層將第一電極及第二電極絕緣，因此無論將第一電極及第二電極配置在基板的哪一面側，均可將第一電極與第二電極絕緣。 The conductive film substrate may include a first resin layer that insulates the first electrode from the second electrode and the substrate, and a second resin layer that insulates the second electrode from the first electrode and the substrate. In the conductive film substrate, since the first electrode and the second electrode are insulated by the first resin layer and the second resin layer, the first electrode and the second electrode may be disposed on the side of the substrate. The electrode is insulated from the second electrode.
所述導電膜基板中，彼此交叉的第一電極及第二電極也 可相對於基板而配置在相反的兩側。所述情況下，也可進一步具備第一樹脂層，且在所述基板上依次配置著所述第一樹脂層及所述第一電極。另外，也可進一步具備第二樹脂層，且在所述基板上依次配置著所述第二樹脂層及所述第二電極。 In the conductive film substrate, the first electrode and the second electrode that cross each other are also It can be disposed on opposite sides with respect to the substrate. In this case, the first resin layer may be further provided, and the first resin layer and the first electrode may be sequentially disposed on the substrate. Further, the second resin layer may be further provided, and the second resin layer and the second electrode may be sequentially disposed on the substrate.
所述導電膜基板中，彼此交叉的第一電極及第二電極也可相對於基板而配置在同一側。所述情況下，也可進一步具備第一樹脂層，且在所述基板上依次配置著所述第二電極、所述第一樹脂層及所述第一電極。另外，也可進一步具備第二樹脂層，且在所述基板上依次配置著所述第一電極、所述第二樹脂層及所述第二電極。 In the conductive film substrate, the first electrode and the second electrode that intersect each other may be disposed on the same side with respect to the substrate. In this case, the first resin layer may be further provided, and the second electrode, the first resin layer, and the first electrode may be sequentially disposed on the substrate. Further, a second resin layer may be further provided, and the first electrode, the second resin layer, and the second electrode are sequentially disposed on the substrate.
所述導電膜基板中，第一電極及第二電極的至少一者也可包含導電性纖維。所述情況下，導電性纖維可為銀纖維。所述導電膜基板中，導電性纖維為銀纖維，因此可容易地調整所述電極的導電性。 In the conductive film substrate, at least one of the first electrode and the second electrode may include conductive fibers. In this case, the conductive fiber may be a silver fiber. In the conductive film substrate, since the conductive fibers are silver fibers, the conductivity of the electrodes can be easily adjusted.
所述導電膜基板中，也可進一步具備虛設電極(dummy electrode)，且虛設電極可配置在多個第一電極之間，也可配置在多個第二電極之間。所述導電膜基板中，通過配置虛設電極，可在觸控式螢幕感測器的傳感區域中抑制電極的圖案被看到的現象(圖案可見現象)。 The conductive film substrate may further include a dummy electrode, and the dummy electrode may be disposed between the plurality of first electrodes or may be disposed between the plurality of second electrodes. In the conductive film substrate, by disposing the dummy electrode, a phenomenon in which the pattern of the electrode is observed (pattern visible phenomenon) can be suppressed in the sensing region of the touch screen sensor.
本新型創作的觸控式螢幕感測器具備所述任一導電膜基板。本新型創作的觸控式螢幕感測器由於具備所述任一導電膜基板，因此即便在彎折預定區域處被彎折，也可抑制電極斷線。 The touch screen sensor of the present invention is provided with any of the conductive film substrates. Since the touch screen sensor of the present invention has any of the conductive film substrates described above, it is possible to suppress electrode breakage even if it is bent at a predetermined bending region.
本新型創作的模組具備所述任一導電膜基板。本新型創作的模組由於具備所述任一導電膜基板，因此即便在彎折預定區域處被彎折，也可抑制電極斷線。 The module created by the present invention is provided with any of the conductive film substrates described above. Since the module of the present invention has any of the above-described conductive film substrates, it is possible to suppress electrode breakage even if it is bent at a predetermined bending region.
1‧‧‧導電膜基板 1‧‧‧Conductive film substrate
1a‧‧‧第一導電膜基板部 1a‧‧‧First conductive film substrate
1b‧‧‧第二導電膜基板部 1b‧‧‧Second conductive film substrate
2‧‧‧基板 2‧‧‧Substrate
3‧‧‧第一電極 3‧‧‧First electrode
3a‧‧‧第一電極 3a‧‧‧first electrode
3b‧‧‧第一電極 3b‧‧‧first electrode
4‧‧‧第二電極 4‧‧‧second electrode
4a‧‧‧第二電極 4a‧‧‧second electrode
4b‧‧‧第二電極 4b‧‧‧second electrode
5‧‧‧第一樹脂層 5‧‧‧First resin layer
6‧‧‧第二樹脂層 6‧‧‧Second resin layer
10A‧‧‧模組 10A‧‧‧Module
10B‧‧‧模組 10B‧‧‧ module
101‧‧‧觸控式螢幕感測器 101‧‧‧Touch screen sensor
101a‧‧‧第一觸控式螢幕感測器部 101a‧‧‧First touch screen sensor unit
101b‧‧‧第二觸控式螢幕感測器部 101b‧‧‧Second touch screen sensor unit
102‧‧‧基板 102‧‧‧Substrate
103‧‧‧第一電極 103‧‧‧First electrode
103a‧‧‧第一電極 103a‧‧‧first electrode
103b‧‧‧第一電極 103b‧‧‧first electrode
104‧‧‧第二電極 104‧‧‧second electrode
104a‧‧‧第二電極 104a‧‧‧second electrode
104b‧‧‧第二電極 104b‧‧‧second electrode
105‧‧‧第一樹脂層 105‧‧‧First resin layer
106‧‧‧第二樹脂層 106‧‧‧Second resin layer
107‧‧‧金屬佈線 107‧‧‧Metal wiring
108‧‧‧連接電極 108‧‧‧Connecting electrode
109‧‧‧連接端子 109‧‧‧Connecting terminal
α‧‧‧彎折預定區域 ‧‧‧‧Bending scheduled area
β‧‧‧觸摸畫面 β‧‧‧Touch screen
圖1為本實施形態的導電膜基板的示意側視圖。 Fig. 1 is a schematic side view of a conductive film substrate of the embodiment.
圖2為本實施形態的導電膜基板的示意俯視圖。 Fig. 2 is a schematic plan view of a conductive film substrate of the embodiment.
圖3為表示導電膜基板的截面構成例的示意截面圖。 3 is a schematic cross-sectional view showing an example of a cross-sectional structure of a conductive film substrate.
圖4為表示導電膜基板的截面構成例的示意截面圖。 4 is a schematic cross-sectional view showing an example of a cross-sectional structure of a conductive film substrate.
圖5為表示導電膜基板的截面構成例的示意截面圖。 Fig. 5 is a schematic cross-sectional view showing an example of a cross-sectional structure of a conductive film substrate.
圖6為表示導電膜基板的截面構成例的示意截面圖。 Fig. 6 is a schematic cross-sectional view showing an example of a cross-sectional structure of a conductive film substrate.
圖7為本實施形態的觸控式螢幕感測器的示意平面圖。 Fig. 7 is a schematic plan view of the touch screen sensor of the embodiment.
圖8(a)為用來說明圖7所示的觸控式螢幕感測器的製造方法的示意平面圖，圖8(b)為圖8(a)的VIII(b)-VIII(b)線的示意截面圖。 8(a) is a schematic plan view for explaining a method of manufacturing the touch screen sensor shown in FIG. 7, and FIG. 8(b) is a line VIII(b)-VIII(b) of FIG. 8(a). Schematic cross-section of the figure.
圖9(a)為用來說明圖7所示的觸控式螢幕感測器的製造方法的示意平面圖，圖9(b)為圖9(a)的IX(b)-IX(b)線的示意截面圖。 9(a) is a schematic plan view for explaining a method of manufacturing the touch screen sensor shown in FIG. 7, and FIG. 9(b) is a line IX(b)-IX(b) of FIG. 9(a). Schematic cross-section of the figure.
圖10(a)為表示將搭載有導電膜基板的模組彎折前的狀態的立體圖，圖10(b)為表示將搭載有導電膜基板的模組彎折的狀態且表示開著的狀態的立體圖，圖10(c)為表示將搭載有導電膜 基板的模組完全彎折的狀態的立體圖。 (a) of FIG. 10 is a perspective view showing a state before the module on which the conductive film substrate is mounted is bent, and FIG. 10B is a state in which the module on which the conductive film substrate is mounted is bent and shown in an open state. The perspective view of Fig. 10(c) shows that the conductive film will be mounted. A perspective view of a state in which the module of the substrate is completely bent.
圖11(a)為表示將搭載有導電膜基板的模組彎折的狀態的示意側面圖為表示將搭載有導電膜基板的模組彎折前的狀態的立體圖，圖11(b)為表示將搭載有導電膜基板的模組彎折的狀態且表示開著的狀態的立體圖，圖11(c)為表示將搭載有導電膜基板的模組完全彎折的狀態的立體圖。 (a) of FIG. 11 is a perspective view showing a state in which a module on which a conductive film substrate is mounted is bent, and FIG. 11(b) is a perspective view showing a state before bending a module on which a conductive film substrate is mounted. FIG. 11(c) is a perspective view showing a state in which the module on which the conductive film substrate is mounted is bent, and FIG. 11(c) is a perspective view showing a state in which the module on which the conductive film substrate is mounted is completely bent.
以下，一面參照圖式一面對本新型創作的適合的實施形態加以詳細說明。此外，圖式中對相同或相當部分標注相同符號，省略重複說明。另外，本說明書中使用“~”所表示的數值範圍表示包含“~”的前後所記載的數值分別作為最小值及最大值的範圍。 Hereinafter, a suitable embodiment of the present novel creation will be described in detail with reference to the drawings. In the drawings, the same or corresponding components are designated by the same reference numerals, and the repeated description is omitted. In addition, the numerical range represented by "~" in this specification shows the range which contains the numerical value of the before and after the "~" as the minimum value and the maximum value respectively.
圖1為本實施形態的導電膜基板的示意側視圖。圖2為導電膜基板的示意俯視圖。圖3~圖6為表示導電膜基板的截面構成例的示意截面圖。如圖1~圖6所示那樣，導電膜基板1具備基板2、以及設置在基板2上並且在俯視導電膜基板1時彼此交叉的多個第一電極3及第二電極4。在第一電極3下設置著第一樹脂層5，在第二電極4下設置著第二樹脂層6。而且，導電膜基板1預定在彎折預定區域α處彎折。即，導電膜基板1搭載在可彎折的觸控式螢幕等的模組(未圖示)上。而且，若彎折該模組，則導電膜 基板1在彎折預定區域α處被彎折。 Fig. 1 is a schematic side view of a conductive film substrate of the embodiment. 2 is a schematic plan view of a conductive film substrate. 3 to 6 are schematic cross-sectional views showing a cross-sectional configuration example of a conductive film substrate. As shown in FIGS. 1 to 6 , the conductive film substrate 1 includes a substrate 2 and a plurality of first electrodes 3 and second electrodes 4 which are provided on the substrate 2 and intersect each other when the conductive film substrate 1 is viewed in plan. A first resin layer 5 is disposed under the first electrode 3, and a second resin layer 6 is disposed under the second electrode 4. Moreover, the conductive film substrate 1 is intended to be bent at a predetermined bending area α. That is, the conductive film substrate 1 is mounted on a module (not shown) such as a bendable touch screen. Moreover, if the module is bent, the conductive film The substrate 1 is bent at a predetermined bending area α.
彎折預定區域α為導電膜基板1中的在將搭載有導電膜基板1的模組彎折時所彎折的區域。彎折預定區域α為呈直線狀延伸的帶狀區域。彎折預定區域α為具有規定的寬度的區域。 The predetermined bending region α is a region in the conductive film substrate 1 that is bent when the module on which the conductive film substrate 1 is mounted is bent. The predetermined bending region α is a strip-shaped region that extends linearly. The predetermined bending region α is a region having a predetermined width.
圖10(a)~圖10(c)表示搭載有導電膜基板1的模組10A，圖11(a)~圖11(c)表示搭載有導電膜基板1的模組10B。如圖10(a)~圖10(c)所示的模組10A那樣，在將導電膜基板1以大的曲率(小的曲率半徑)彎折的情況下，彎折預定區域α成為狹寬度的帶狀區域。另一方面，如圖11(a)~圖11(c)所示的模組10B那樣，在將導電膜基板1以小的曲率(大的曲率半徑)彎折的情況下，彎折預定區域α成為廣寬度的帶狀區域。此外，圖10(a)~圖10(c)及圖11(a)~圖11(c)中，以灰色的影線表示彎折預定區域α，但其他圖式中，為了容易理解彎折預定區域α的位置，而以線表示彎折預定區域α。 10(a) to 10(c) show the module 10A on which the conductive film substrate 1 is mounted, and FIGS. 11(a) to 11(c) show the module 10B on which the conductive film substrate 1 is mounted. When the conductive film substrate 1 is bent with a large curvature (small curvature radius) as in the module 10A shown in FIGS. 10(a) to 10(c), the predetermined bending region α becomes a narrow width. Banded area. On the other hand, as in the module 10B shown in FIGS. 11(a) to 11(c), when the conductive film substrate 1 is bent with a small curvature (large radius of curvature), the predetermined region is bent. α becomes a band-shaped region of a wide width. In addition, in FIGS. 10(a) to 10(c) and FIGS. 11(a) to 11(c), the predetermined bending region α is indicated by a gray hatching, but in other drawings, in order to easily understand the bending The position of the area α is predetermined, and the predetermined area α is bent by a line.
導電膜基板1被彎折預定區域α劃分成第一導電膜基板部1a與第二導電膜基板部1b。彎折預定區域α可形成在導電膜基板1的任何位置。例如在將導電膜基板1形成為矩形的情況下，彎折預定區域α可設定為以將導電膜基板1一分為二的方式通過導電膜基板1的長邊的中央，且在與導電膜基板1的短邊平行的方向上延伸的直線。 The conductive film substrate 1 is divided into a first conductive film substrate portion 1a and a second conductive film substrate portion 1b by a predetermined bending region α. The bent predetermined region α may be formed at any position of the conductive film substrate 1. For example, in the case where the conductive film substrate 1 is formed in a rectangular shape, the predetermined bending region α can be set so as to pass through the center of the long side of the conductive film substrate 1 in a manner of dividing the conductive film substrate 1 into two, and in the conductive film A straight line extending in a direction in which the short sides of the substrate 1 are parallel.
導電膜基板1的自平坦狀態的彎折方向並無特別限定， 例如可向兩面側彎折，也可僅向其中一側彎折。此外，導電膜基板1的彎折預定區域α處的彎折方向可取決於導電膜基板1自身的結構、樣式等，也可取決於安裝導電膜基板1的裝置的結構、樣式等。 The bending direction of the conductive film substrate 1 from the flat state is not particularly limited. For example, it may be bent to both sides, or may be bent only to one side. Further, the bending direction at the predetermined bending region α of the conductive film substrate 1 may depend on the structure, pattern, and the like of the conductive film substrate 1 itself, and may depend on the structure, pattern, and the like of the device on which the conductive film substrate 1 is mounted.
基板2支撐第一電極3及第二電極4，例如形成為矩形的片狀。而且，通過將導電膜基板1在彎折預定區域α處彎折，基板2也在彎折預定區域α處被彎折。此外，將第一導電膜基板部1a中的基板2的部分稱為第一基板部2a，將第二導電膜基板部1b中的基板2的部分稱為第二基板部2b。 The substrate 2 supports the first electrode 3 and the second electrode 4, and is formed, for example, in a rectangular sheet shape. Moreover, by bending the conductive film substrate 1 at the predetermined bending region α, the substrate 2 is also bent at the predetermined bending region α. Further, a portion of the substrate 2 in the first conductive film substrate portion 1a is referred to as a first substrate portion 2a, and a portion of the substrate 2 in the second conductive film substrate portion 1b is referred to as a second substrate portion 2b.
自確保導電膜基板1的透明性的觀點來看，基板2優選的是450nm~650nm的波長範圍內的最小光透射率為80%以上，更優選85%以上，進而優選90%以上。 From the viewpoint of ensuring the transparency of the conductive film substrate 1, the substrate 2 preferably has a minimum light transmittance of 80% or more, more preferably 85% or more, and still more preferably 90% or more in a wavelength range of 450 nm to 650 nm.
自確保導電膜基板1的透明性及製造時的操作性的觀點來看，基板2的厚度優選20μm~2000μm，更優選25μm~500μm，進而優選30μm~100μm。基板2例如可舉出聚碳酸酯、聚對苯二甲酸乙二酯(polyethylene terephthalate，PET)、環烯烴聚合物等樹脂制基板等。這些中，自彎折性、透明性的觀點來看，優選聚對苯二甲酸乙二酯。 The thickness of the substrate 2 is preferably 20 μm to 2000 μm, more preferably 25 μm to 500 μm, and still more preferably 30 μm to 100 μm from the viewpoint of ensuring transparency of the conductive film substrate 1 and operability at the time of production. The substrate 2 may, for example, be a resin substrate such as polycarbonate, polyethylene terephthalate (PET) or cycloolefin polymer. Among these, polyethylene terephthalate is preferred from the viewpoint of flexibility and transparency.
另外，在基板2與第一電極3及第二電極4之間，可設置折射率匹配層(Index Matching Layer，IM層)作為光學調整層。通過設置IM層，可在觸控式螢幕感測器的傳感區域中抑制電極的 圖案被看到的現象(圖案可見現象)。 Further, between the substrate 2 and the first electrode 3 and the second electrode 4, an index matching layer (IM layer) may be provided as an optical adjustment layer. By setting the IM layer, the electrodes can be suppressed in the sensing area of the touch screen sensor The phenomenon in which the pattern is seen (the pattern is visible).
第一電極3及第二電極4為導電膜基板1的電極，形成有圖案。此外，本說明書中，圖案包括條紋狀的形狀、菱形形狀(diamond shape)在一個方向上相連而成的形狀等。 The first electrode 3 and the second electrode 4 are electrodes of the conductive film substrate 1, and are patterned. Further, in the present specification, the pattern includes a stripe shape, a shape in which a diamond shape is connected in one direction, and the like.
第一電極3及第二電極4是設置在基板2上的第一導電膜基板部1a及第二導電膜基板部1b中的雙方。即，在第一基板部2a上設置著彼此交叉的多個第一電極3及第二電極4，在第二基板部2b上設置著彼此交叉的多個第一電極3及第二電極4。而且，第一電極3及第二電極4不配置在彎折預定區域α上。所謂不配置在彎折預定區域α上，是指不橫穿彎折預定區域α，也不與彎折預定區域α重疊。 The first electrode 3 and the second electrode 4 are both the first conductive film substrate portion 1a and the second conductive film substrate portion 1b provided on the substrate 2. That is, the first substrate portion 2a is provided with a plurality of first electrodes 3 and second electrodes 4 that intersect each other, and the second substrate portion 2b is provided with a plurality of first electrodes 3 and second electrodes 4 that intersect each other. Further, the first electrode 3 and the second electrode 4 are not disposed on the predetermined bending region α. The fact that it is not disposed on the predetermined bending region α means that it does not cross the predetermined bending region α and does not overlap the predetermined bending region α.
若加以具體說明，則第一電極3包括設置在第一導電膜基板部1a中的第一電極3a、及設置在第二導電膜基板部1b中的第一電極3b。另外，第二電極4包括設置在第一導電膜基板部1a中的第二電極4a、及設置在第二導電膜基板部1b中的第二電極4b。而且，第一電極3a與第一電極3b彼此隔開，在第一電極3a與第一電極3b之間的隔開區域中形成有彎折預定區域α。另外，第二電極4a與第二電極4b彼此隔開，在第二電極4a與第二電極4b之間的隔開區域中形成有彎折預定區域α。 Specifically, the first electrode 3 includes a first electrode 3a provided in the first conductive film substrate portion 1a and a first electrode 3b provided in the second conductive film substrate portion 1b. Further, the second electrode 4 includes a second electrode 4a provided in the first conductive film substrate portion 1a and a second electrode 4b provided in the second conductive film substrate portion 1b. Further, the first electrode 3a and the first electrode 3b are spaced apart from each other, and a predetermined bending region α is formed in a spaced region between the first electrode 3a and the first electrode 3b. Further, the second electrode 4a and the second electrode 4b are spaced apart from each other, and a predetermined predetermined region α is formed in a spaced region between the second electrode 4a and the second electrode 4b.
俯視導電膜基板1時，第一電極3與第二電極4交叉的角度並無特別限定，第一電極3與第二電極4優選的是正交。此 外，多個第一電極3配置成彼此大致平行(也包括平行)，但也可不配置成彼此大致平行。同樣地，多個第二電極4配置成彼此大致平行(也包括平行)，但也可不配置成彼此大致平行。 When the conductive film substrate 1 is viewed in plan, the angle at which the first electrode 3 and the second electrode 4 intersect is not particularly limited, and the first electrode 3 and the second electrode 4 are preferably orthogonal to each other. this Further, the plurality of first electrodes 3 are disposed substantially parallel to each other (including parallel), but may not be disposed substantially parallel to each other. Likewise, the plurality of second electrodes 4 are disposed substantially parallel to each other (including parallel), but may not be disposed substantially parallel to each other.
第一電極3(第一電極3a及第一電極3b)的延伸方向並無特別限定，第一電極3優選的是在與彎折預定區域α正交的方向上延伸。另外，第二電極4(第二電極4a及第二電極4b)的延伸方向並無特別限定，第二電極4優選的是在與彎折預定區域α平行的方向上延伸。 The extending direction of the first electrode 3 (the first electrode 3a and the first electrode 3b) is not particularly limited, and the first electrode 3 preferably extends in a direction orthogonal to the predetermined bending region α. Further, the extending direction of the second electrode 4 (the second electrode 4a and the second electrode 4b) is not particularly limited, and the second electrode 4 preferably extends in a direction parallel to the predetermined bending region α.
第一電極3及第二電極4的積層位置並無特別限定。例如可如圖3及圖4所示那樣，相對於基板2而將第一電極3配置在與第二電極4相同的一側，也可如圖5所示那樣，相對於基板2而將第一電極3配置在與第二電極4相反的一側。 The laminated position of the first electrode 3 and the second electrode 4 is not particularly limited. For example, as shown in FIG. 3 and FIG. 4, the first electrode 3 may be disposed on the same side as the second electrode 4 with respect to the substrate 2, or may be the same as the substrate 2 as shown in FIG. An electrode 3 is disposed on the opposite side of the second electrode 4.
在相對於基板2而將第一電極3及第二電極4配置在同一側的情況下，第一電極3及第二電極4的積層順序並無特別限定。例如可如圖3所示那樣，將第一電極3配置在第二電極4的與基板2相反的一側，也可如圖4所示那樣，將第一電極3配置在第二電極4的基板2側。 When the first electrode 3 and the second electrode 4 are disposed on the same side with respect to the substrate 2, the order of lamination of the first electrode 3 and the second electrode 4 is not particularly limited. For example, as shown in FIG. 3, the first electrode 3 may be disposed on the opposite side of the second electrode 4 from the substrate 2, or the first electrode 3 may be disposed on the second electrode 4 as shown in FIG. The substrate 2 side.
另外，在第一導電膜基板部1a與第二導電膜基板部1b中，第一電極3及第二電極4的積層位置也可不同。例如可如圖3~圖5所示那樣，相對於基板2而將設置在第一導電膜基板部1a中的第一電極3a及第二電極4a與設置在第二導電膜基板部1b中的第一電極3b及第二電極4b配置在同一側，也可如圖6所示那 樣，相對於基板2而將設置在第一導電膜基板部1a中的第一電極3a及第二電極4a與設置在第二導電膜基板部1b中的第一電極3b及第二電極4b配置在相反的兩側。 Further, in the first conductive film substrate portion 1a and the second conductive film substrate portion 1b, the laminated positions of the first electrode 3 and the second electrode 4 may be different. For example, as shown in FIGS. 3 to 5, the first electrode 3a and the second electrode 4a provided in the first conductive film substrate portion 1a and the second conductive film substrate portion 1b are provided in the second conductive film substrate portion 1b with respect to the substrate 2. The first electrode 3b and the second electrode 4b are disposed on the same side, as shown in FIG. The first electrode 3a and the second electrode 4a provided in the first conductive film substrate portion 1a and the first electrode 3b and the second electrode 4b disposed in the second conductive film substrate portion 1b are disposed with respect to the substrate 2 On the opposite sides.
圖3所示的導電膜基板1在基板2的表面上依次配置著第二樹脂層6、第二電極4(第二電極4a及第二電極4b)、第一樹脂層5及第一電極3(第一電極3a及第一電極3b)。 In the conductive film substrate 1 shown in FIG. 3, the second resin layer 6, the second electrode 4 (the second electrode 4a and the second electrode 4b), the first resin layer 5, and the first electrode 3 are sequentially disposed on the surface of the substrate 2. (first electrode 3a and first electrode 3b).
圖4所示的導電膜基板1在基板2的表面上依次配置著第一樹脂層5、第一電極3(第一電極3a及第一電極3b)、第二樹脂層6及第二電極4(第二電極4a及第二電極4b)。 In the conductive film substrate 1 shown in FIG. 4, the first resin layer 5, the first electrode 3 (the first electrode 3a and the first electrode 3b), the second resin layer 6, and the second electrode 4 are sequentially disposed on the surface of the substrate 2. (second electrode 4a and second electrode 4b).
圖5所示的導電膜基板1在基板2的其中一側的表面上依次配置著第一樹脂層5及第一電極3(第一電極3a及第一電極3b)，在基板2的另一側的表面上依次配置著第二樹脂層6及第二電極4(第二電極4a及第二電極4b)。 In the conductive film substrate 1 shown in FIG. 5, the first resin layer 5 and the first electrode 3 (the first electrode 3a and the first electrode 3b) are sequentially disposed on one surface of the substrate 2, and the other substrate 2 The second resin layer 6 and the second electrode 4 (the second electrode 4a and the second electrode 4b) are disposed in this order on the side surface.
圖6所示的導電膜基板1在第一導電膜基板部1a中，在基板2的其中一側的表面上依次配置著第二樹脂層6、第二電極4a、第一樹脂層5及第一電極3a，在第二導電膜基板部1b中，在基板2的另一側的表面上依次配置著第二樹脂層6、第二電極4b、第一樹脂層5及第一電極3b。此外，圖6中，第一電極3a與第二電極4a、第一電極3b與第二電極4b也可反過來配置。 In the first conductive film substrate portion 1a of the conductive film substrate 1 shown in FIG. 6, the second resin layer 6, the second electrode 4a, the first resin layer 5, and the second layer are sequentially disposed on one surface of the substrate 2. In the first electrode 3a, in the second conductive film substrate portion 1b, the second resin layer 6, the second electrode 4b, the first resin layer 5, and the first electrode 3b are sequentially disposed on the surface of the other side of the substrate 2. In addition, in FIG. 6, the first electrode 3a and the second electrode 4a, the first electrode 3b, and the second electrode 4b may be reversed.
第一電極3及第二電極4只要為具有導電性的透明電極，則可由任何材料形成。例如，第一電極3及第二電極4可包含導電性纖維，也可由作為透明電極的材料而目前成為主流的 ITO、氧化銦或氧化錫所形成。另外，第一電極3與第二電極4可由相同的材料形成，也可由不同的材料形成。 The first electrode 3 and the second electrode 4 may be formed of any material as long as they are conductive transparent electrodes. For example, the first electrode 3 and the second electrode 4 may comprise conductive fibers, or may be mainstream as a material for the transparent electrode. Formed by ITO, indium oxide or tin oxide. In addition, the first electrode 3 and the second electrode 4 may be formed of the same material or may be formed of different materials.
所述導電性纖維例如可舉出金、銀、銅、鉑等的金屬纖維及碳納米管(carbon nanotube)等碳纖維等。這些纖維可單獨使用一種或組合使用兩種以上。自導電性優異的觀點來看，優選的是使用金纖維或銀纖維。進而，自可容易地調整第一電極3及/或第二電極4的導電性的觀點來看，更優選銀纖維(銀納米線)。 Examples of the conductive fiber include metal fibers such as gold, silver, copper, and platinum, and carbon fibers such as carbon nanotubes. These fibers may be used alone or in combination of two or more. From the viewpoint of excellent electrical conductivity, it is preferred to use gold fibers or silver fibers. Further, from the viewpoint of easily adjusting the conductivity of the first electrode 3 and/or the second electrode 4, silver fibers (silver nanowires) are more preferable.
所述金屬纖維例如可通過利用NaBH4等還原劑將金屬離子還原的方法、多元醇法等而製備。 The metal fiber can be produced, for example, by a method of reducing a metal ion using a reducing agent such as NaBH 4 or a polyol method.
碳納米管可使用尤尼吉姆(Unidym)公司的海普高(Hipco)單層碳納米管等市售品。 Commercially available products such as Hipco monolayer carbon nanotubes of Unidym Co., Ltd. can be used for the carbon nanotubes.
自獲得優異的耐靜電性的觀點來看，導電性纖維的纖維徑優選1nm以上，更優選2nm以上，進而優選3nm以上，特別優選10nm以上，極其優選20nm以上。自容易獲得優異的可見度的觀點來看，導電性纖維的纖維徑優選50nm以下，更優選45nm以下，進而優選40nm以下。自這些觀點來看，導電性纖維的纖維徑優選1nm~50nm，更優選2nm~45nm，進而優選3nm~40nm，特別優選10nm~40nm，極其優選20nm~40nm。 The fiber diameter of the conductive fiber is preferably 1 nm or more, more preferably 2 nm or more, further preferably 3 nm or more, particularly preferably 10 nm or more, and particularly preferably 20 nm or more from the viewpoint of obtaining excellent static resistance. The fiber diameter of the conductive fiber is preferably 50 nm or less, more preferably 45 nm or less, and still more preferably 40 nm or less from the viewpoint of easily obtaining excellent visibility. From these viewpoints, the fiber diameter of the conductive fiber is preferably 1 nm to 50 nm, more preferably 2 nm to 45 nm, still more preferably 3 nm to 40 nm, particularly preferably 10 nm to 40 nm, and most preferably 20 nm to 40 nm.
自容易減少用來獲得充分的可見度的導電性纖維的使用量的觀點來看，導電性纖維的纖維長優選1μm以上，更優選2μm以上，進而優選3μm以上。自容易抑制導電性纖維的凝聚的觀點 來看，導電性纖維的纖維長優選100μm以下，更優選50μm以下，進而優選10μm以下，特別優選5μm以下。自這些觀點來看，導電性纖維的纖維長優選1μm~100μm，更優選2μm~50μm，進而優選3μm~10μm，特別優選3μm~5μm。 The fiber length of the conductive fiber is preferably 1 μm or more, more preferably 2 μm or more, and still more preferably 3 μm or more from the viewpoint of easily reducing the amount of use of the conductive fiber for obtaining sufficient visibility. From the viewpoint of easily suppressing aggregation of conductive fibers The fiber length of the conductive fiber is preferably 100 μm or less, more preferably 50 μm or less, further preferably 10 μm or less, and particularly preferably 5 μm or less. From these viewpoints, the fiber length of the conductive fiber is preferably 1 μm to 100 μm, more preferably 2 μm to 50 μm, still more preferably 3 μm to 10 μm, and particularly preferably 3 μm to 5 μm.
纖維徑及纖維長可利用掃描式電子顯微鏡來測定。 The fiber diameter and fiber length can be measured by a scanning electron microscope.
第一電極3及第二電極4各自的厚度也根據導電膜基板1的用途、所需求的導電性等而不同，優選下述範圍。自450nm~650nm的波長範圍內的光透射率高、變得特別適合於透明電極的觀點來看，第一電極3及第二電極4各自的厚度優選1μm以下，更優選0.5μm以下，進而優選0.1μm以下。自容易確保均勻的導電性的觀點來看，第一電極3及第二電極4各自的厚度優選1nm以上，更優選5nm以上，進而優選10nm以上，特別優選50nm以上。自這些觀點來看，第一電極3及第二電極4各自的厚度優選1μm以下，更優選1nm~0.5μm，進而優選5nm~0.1μm，特別優選10nm~0.1μm，極其優選50nm~0.1μm。 The thickness of each of the first electrode 3 and the second electrode 4 also differs depending on the use of the conductive film substrate 1, the required conductivity, and the like, and is preferably in the following range. The thickness of each of the first electrode 3 and the second electrode 4 is preferably 1 μm or less, more preferably 0.5 μm or less, further preferably from the viewpoint of having a high light transmittance in a wavelength range of 450 nm to 650 nm and being particularly suitable for a transparent electrode. 0.1 μm or less. The thickness of each of the first electrode 3 and the second electrode 4 is preferably 1 nm or more, more preferably 5 nm or more, further preferably 10 nm or more, and particularly preferably 50 nm or more from the viewpoint of easily ensuring uniform conductivity. From these viewpoints, the thickness of each of the first electrode 3 and the second electrode 4 is preferably 1 μm or less, more preferably 1 nm to 0.5 μm, still more preferably 5 nm to 0.1 μm, particularly preferably 10 nm to 0.1 μm, and most preferably 50 nm to 0.1 μm.
所述金屬纖維優選的是具有包含導電性纖維而成的網狀結構。在第一電極3包含導電性纖維並且導電膜基板1具有第一樹脂層5的情況下，這種網狀結構例如能以(1)含浸在第一樹脂層5中的形態、(2)含浸在第一樹脂層5中且一部分自第一樹脂層5的主面突出的形態、(3)位於第一樹脂層5的主面上的形態而存在。在第二電極4包含導電性纖維並且導電膜基板1具有第二樹脂層6的情況下，這種網狀結構例如能以(1)含浸在第二樹 脂層6中的形態、(2)含浸在第二樹脂層6中且一部分自第二樹脂層6的主面突出的形態、(3)位於第二樹脂層6的主面上的形態而存在。此外，具有網狀結構的第一電極3及第二電極4的厚度是指利用掃描式電子顯微鏡照片所測定的值。 The metal fiber preferably has a network structure including conductive fibers. In the case where the first electrode 3 contains conductive fibers and the conductive film substrate 1 has the first resin layer 5, such a network structure can be, for example, (1) impregnated in the first resin layer 5, and (2) impregnated. The first resin layer 5 has a form in which a part thereof protrudes from the main surface of the first resin layer 5, and (3) a form which is located on the main surface of the first resin layer 5. In the case where the second electrode 4 contains conductive fibers and the conductive film substrate 1 has the second resin layer 6, such a mesh structure can be impregnated with, for example, (1) in the second tree. The form of the lipid layer 6 is (2) impregnated in the second resin layer 6 and partially protruded from the main surface of the second resin layer 6, and (3) exists on the main surface of the second resin layer 6 . Further, the thickness of the first electrode 3 and the second electrode 4 having a mesh structure means a value measured by a scanning electron micrograph.
第一樹脂層5是用來使第一電極3與基板2絕緣的層。第二樹脂層6是用來使第二電極4與基板2絕緣的層。 The first resin layer 5 is a layer for insulating the first electrode 3 from the substrate 2. The second resin layer 6 is a layer for insulating the second electrode 4 from the substrate 2.
第一樹脂層5及第二樹脂層6相對於基板2的位置關係並無特別限定。例如在如圖3所示那樣相對於基板2而將第一電極3及第二電極4配置在同一側的情況下，可將第一樹脂層5配置在第一電極3與第二電極4之間，並且將第二樹脂層6配置在第二電極4與基板2之間。所述情況下，成為在基板2上依次配置有第二樹脂層6、第二電極4、第一樹脂層5及第一電極3的狀態。另外，在如圖4所示那樣相對於基板2而將第一電極3及第二電極4配置在同一側的情況下，也可將第一樹脂層5配置在第一電極3與基板2之間，並且將第二樹脂層6配置在第二電極4與第一電極3之間。所述情況下，成為在基板2上依次配置有第一樹脂層5、第一電極3、第二樹脂層6及第二電極4的狀態。進而，在如圖5所示那樣相對於基板2而將第一電極3及第二電極4配置在相反的兩側的情況下，可將第一樹脂層5配置在第一電極3與基板2之間，並且將第二樹脂層6配置在第二電極4與基板2之間。所述情況下，成為在基板2上依次配置有第一樹脂層5及 第一電極3、並且依次配置有第二樹脂層6及第二電極4的狀態。 The positional relationship between the first resin layer 5 and the second resin layer 6 with respect to the substrate 2 is not particularly limited. For example, when the first electrode 3 and the second electrode 4 are disposed on the same side with respect to the substrate 2 as shown in FIG. 3, the first resin layer 5 can be disposed between the first electrode 3 and the second electrode 4. The second resin layer 6 is disposed between the second electrode 4 and the substrate 2. In this case, the second resin layer 6, the second electrode 4, the first resin layer 5, and the first electrode 3 are sequentially disposed on the substrate 2. Further, when the first electrode 3 and the second electrode 4 are disposed on the same side with respect to the substrate 2 as shown in FIG. 4, the first resin layer 5 may be disposed on the first electrode 3 and the substrate 2. The second resin layer 6 is disposed between the second electrode 4 and the first electrode 3. In this case, the first resin layer 5, the first electrode 3, the second resin layer 6, and the second electrode 4 are sequentially disposed on the substrate 2. Further, when the first electrode 3 and the second electrode 4 are disposed on opposite sides of the substrate 2 as shown in FIG. 5, the first resin layer 5 can be disposed on the first electrode 3 and the substrate 2. The second resin layer 6 is disposed between the second electrode 4 and the substrate 2. In this case, the first resin layer 5 is sequentially disposed on the substrate 2 and The first electrode 3 is in a state in which the second resin layer 6 and the second electrode 4 are arranged in this order.
第一樹脂層5及第二樹脂層6的材料並無特別限制，例如可使用：丙烯酸系樹脂、苯乙烯樹脂、環氧樹脂、醯胺樹脂、醯胺環氧樹脂、醇酸樹脂、酚樹脂、酯樹脂、氨基甲酸酯樹脂、由環氧樹脂與(甲基丙烯酸)的反應所得的環氧丙烯酸酯樹脂、由環氧丙烯酸酯樹脂與酸酐的反應所得的酸改性環氧丙烯酸酯樹脂。 The material of the first resin layer 5 and the second resin layer 6 is not particularly limited, and for example, an acrylic resin, a styrene resin, an epoxy resin, a guanamine resin, a guanamine epoxy resin, an alkyd resin, or a phenol resin can be used. , an ester resin, a urethane resin, an epoxy acrylate resin obtained by reacting an epoxy resin with (methacrylic acid), an acid-modified epoxy acrylate resin obtained by reacting an epoxy acrylate resin with an acid anhydride .
第一樹脂層5及第二樹脂層6也可為使感光性樹脂組合物硬化而成的樹脂硬化物。感光性樹脂組合物例如可舉出國際公開第2014/002770號手冊中記載的含有(a)粘合劑聚合物、(b)光聚合性化合物及(c)光聚合引發劑的感光性樹脂組合物。 The first resin layer 5 and the second resin layer 6 may be a cured resin obtained by curing the photosensitive resin composition. The photosensitive resin composition is a photosensitive resin combination containing (a) binder polymer, (b) photopolymerizable compound, and (c) photoinitiator, as described in the International Publication No. 2014/002770. Things.
自確保導電膜基板1的透明性的觀點來看，第一電極3及第一樹脂層5優選的是將兩層的合計膜厚設為1μm~10μm時450nm~650nm的波長範圍內的最小光透射率為80%以上，更優選85%以上，進而優選90%以上。另外，第二電極4及第二樹脂層6優選的是將兩層的合計膜厚設為1μm~10μm時450nm~650nm的波長範圍內的最小光透射率為80%以上，更優選85%以上，進而優選90%以上。在滿足這種條件的情況下，將導電膜基板1應用於顯示幕(display panel)等時的可見度提高。 From the viewpoint of ensuring the transparency of the conductive film substrate 1, the first electrode 3 and the first resin layer 5 are preferably the minimum light in the wavelength range of 450 nm to 650 nm when the total thickness of the two layers is 1 μm to 10 μm. The transmittance is 80% or more, more preferably 85% or more, still more preferably 90% or more. Further, it is preferable that the second electrode 4 and the second resin layer 6 have a minimum light transmittance of 80% or more, more preferably 85% or more in a wavelength range of 450 nm to 650 nm when the total thickness of the two layers is 1 μm to 10 μm. Further, it is preferably 90% or more. When such a condition is satisfied, the visibility of the conductive film substrate 1 when applied to a display panel or the like is improved.
如以上所說明那樣，本實施形態的導電膜基板1中，第一電極3及第二電極4不配置在彎折預定區域α上，因此即便在彎折預定區域α處將導電膜基板1彎折，第一電極3及第二電極4也不被彎折。因此，即便在彎折預定區域α處將導電膜基板1彎 折，也可抑制第一電極3及第二電極4斷線。 As described above, in the conductive film substrate 1 of the present embodiment, since the first electrode 3 and the second electrode 4 are not disposed on the predetermined bending region α, the conductive film substrate 1 is bent even at the predetermined bending region α. The first electrode 3 and the second electrode 4 are also not bent. Therefore, the conductive film substrate 1 is bent even at the bending predetermined region α The folding of the first electrode 3 and the second electrode 4 can also be suppressed.
另外，在第一電極3與第二電極4在俯視導電膜基板1時正交的情況下，可遍佈基板2地配置第一電極3及第二電極4。 Further, when the first electrode 3 and the second electrode 4 are orthogonal to each other when the conductive film substrate 1 is viewed in plan, the first electrode 3 and the second electrode 4 may be disposed over the substrate 2 .
另外，在第一電極3在與彎折預定區域α正交的方向上延伸的情況下，可在基板2上有效率地配置第一電極3。 Further, in the case where the first electrode 3 extends in a direction orthogonal to the predetermined bending region α, the first electrode 3 can be efficiently disposed on the substrate 2.
另外，在第二電極4在與彎折預定區域α平行的方向上延伸的情況下，可在彎折預定區域α的附近配置第二電極4。 Further, in the case where the second electrode 4 extends in a direction parallel to the predetermined bending region α, the second electrode 4 can be disposed in the vicinity of the predetermined bending region α.
另外，利用第一樹脂層5及第二樹脂層6將第一電極3及第二電極4絕緣，因此無論將第一電極3及第二電極4配置在基板2的哪一面側，均可將第一電極3及第二電極4與基板2絕緣。 Further, since the first electrode 3 and the second electrode 4 are insulated by the first resin layer 5 and the second resin layer 6, the first electrode 3 and the second electrode 4 can be disposed on the side of the substrate 2, The first electrode 3 and the second electrode 4 are insulated from the substrate 2.
另外，在第一電極3及第二電極4的至少一者包含導電性纖維，且所述導電性纖維為銀纖維的情況下，可容易地調整所述電極的導電性。 Further, when at least one of the first electrode 3 and the second electrode 4 contains conductive fibers, and the conductive fibers are silver fibers, the conductivity of the electrodes can be easily adjusted.
然後，對本實施形態的觸控式螢幕感測器加以說明。本實施形態的觸控式螢幕感測器具備所述導電膜基板1。此外，本實施形態中，以具備所述實施形態中的一形態的導電膜基板的形式來進行說明，但也可具備所述任一導電膜基板。 Next, the touch screen sensor of the present embodiment will be described. The touch screen sensor of this embodiment includes the conductive film substrate 1. In the embodiment, the conductive film substrate of one embodiment of the above-described embodiment is described. However, the conductive film substrate may be provided.
圖7為本實施形態的觸控式螢幕感測器的示意平面圖。如圖7所示那樣，本實施形態的觸控式螢幕感測器101為靜電電容方式的觸控式螢幕感測器，且預定在彎折預定區域α處彎折。 即，觸控式螢幕感測器101搭載在可彎折的觸控式螢幕等的模組(未圖示)上。而且，若彎折該模組，則觸控式螢幕感測器101在彎折預定區域α處被彎折。 Fig. 7 is a schematic plan view of the touch screen sensor of the embodiment. As shown in FIG. 7, the touch screen sensor 101 of the present embodiment is a capacitive touch screen sensor, and is bent at a predetermined bending area α. That is, the touch screen sensor 101 is mounted on a module (not shown) such as a bendable touch screen. Moreover, if the module is bent, the touch screen sensor 101 is bent at the predetermined bending area α.
觸控式螢幕感測器101被彎折預定區域α劃分成第一觸控式螢幕感測器部101a及第二觸控式螢幕感測器部101b。觸控式螢幕感測器101在基板102的第一面1A側的面上具備用來檢測觸摸位置的觸摸畫面β。觸摸畫面β是遍及第一觸控式螢幕感測器部101a及第二觸控式螢幕感測器部101b而設置。而且，觸控式螢幕感測器101在第一觸控式螢幕感測器部101a的觸摸畫面β的區域、與第二觸控式螢幕感測器部101b的觸摸畫面β的區域中，分別具備多個第一電極103、及與第一電極103正交的多個第二電極104。第一電極103為檢測靜電電容變化並將其設定為Y位置座標的Y電極。第二電極104為檢測靜電電容變化並將其設定為X位置座標的X電極。此外，基板102、第一電極103及第二電極104分別與導電膜基板1的基板2、第一電極3及第二電極4相對應。 The touch screen sensor 101 is divided into a first touch screen sensor portion 101a and a second touch screen sensor portion 101b by a predetermined bending area α. The touch screen sensor 101 is provided with a touch screen β for detecting a touch position on a surface on the first surface 1A side of the substrate 102. The touch screen β is provided throughout the first touch screen sensor unit 101a and the second touch screen sensor unit 101b. Moreover, the touch screen sensor 101 is in the area of the touch screen β of the first touch screen sensor unit 101a and the touch screen β of the second touch screen sensor unit 101b, respectively. A plurality of first electrodes 103 and a plurality of second electrodes 104 orthogonal to the first electrodes 103 are provided. The first electrode 103 is a Y electrode that detects a change in electrostatic capacitance and sets it as a Y position coordinate. The second electrode 104 is an X electrode that detects a change in electrostatic capacitance and sets it as an X position coordinate. Further, the substrate 102, the first electrode 103, and the second electrode 104 correspond to the substrate 2, the first electrode 3, and the second electrode 4 of the conductive film substrate 1, respectively.
第一電極103為電極，且在與彎折預定區域α正交的方向上延伸。第一電極103包括設置在第一觸控式螢幕感測器部101a中的第一電極103a、及設置在第二觸控式螢幕感測器部101b中的第一電極103b。而且，第一電極103a與第一電極103b是以隔著彎折預定區域α的方式而彼此隔開，由此第一電極103不配置在彎折預定區域α上。 The first electrode 103 is an electrode and extends in a direction orthogonal to the predetermined bending region α. The first electrode 103 includes a first electrode 103a disposed in the first touch screen sensor portion 101a and a first electrode 103b disposed in the second touch screen sensor portion 101b. Further, the first electrode 103a and the first electrode 103b are spaced apart from each other so as to be bent over the predetermined region α, whereby the first electrode 103 is not disposed on the predetermined bending region α.
第二電極104為電極，且在與彎折預定區域α平行的方 向上延伸。第二電極104包括設置在第一觸控式螢幕感測器部101a中的第二電極104a、及設置在第二觸控式螢幕感測器部101b中的第二電極104b。而且，第二電極104是配置在離開彎折預定區域α的位置，由此不配置在彎折預定區域α上。 The second electrode 104 is an electrode and is parallel to the predetermined region α of the bending. Extend upwards. The second electrode 104 includes a second electrode 104a disposed in the first touch screen sensor portion 101a and a second electrode 104b disposed in the second touch screen sensor portion 101b. Further, the second electrode 104 is disposed at a position away from the predetermined bending region α, and thus is not disposed on the predetermined bending region α.
第一電極103通過第一樹脂層105而與第二電極104及基板102絕緣，第二電極104通過第二樹脂層106而與基板102絕緣(參照圖9(a)、圖9(b))。此外，以下的說明中，以在基板102的表面上依次配置著第二樹脂層106、第二電極104、第一樹脂層105及第一電極103的形式來進行說明。然而，第二樹脂層106、第二電極104、第一樹脂層105及第一電極103的配置並無特別限定。此外，第一樹脂層105及第二樹脂層106分別與導電膜基板1的第一樹脂層5及第二樹脂層6相對應。 The first electrode 103 is insulated from the second electrode 104 and the substrate 102 by the first resin layer 105, and the second electrode 104 is insulated from the substrate 102 by the second resin layer 106 (see FIGS. 9(a) and 9(b)). . In the following description, the second resin layer 106, the second electrode 104, the first resin layer 105, and the first electrode 103 are sequentially disposed on the surface of the substrate 102. However, the arrangement of the second resin layer 106, the second electrode 104, the first resin layer 105, and the first electrode 103 is not particularly limited. Further, the first resin layer 105 and the second resin layer 106 correspond to the first resin layer 5 and the second resin layer 6 of the conductive film substrate 1, respectively.
另外，觸控式螢幕感測器101在基板102的表面上具備金屬佈線107、連接電極108及連接端子109。金屬佈線107為將第一電極103及第二電極104連接於控制觸控式螢幕的電信號的驅動元件電路(未圖示)的金屬佈線。金屬佈線107例如是以即便彎折也不斷線的方式而由含有薄片狀銀的導電膏材料所形成。連接電極108為將金屬佈線107與第一電極103及第二電極104連接的電極。連接端子109為設置在金屬佈線107的與連接電極108相反的一側的端部、且與驅動元件電路連接的連接端子。 Further, the touch screen sensor 101 includes a metal wiring 107, a connection electrode 108, and a connection terminal 109 on the surface of the substrate 102. The metal wiring 107 is a metal wiring that connects the first electrode 103 and the second electrode 104 to a driving element circuit (not shown) that controls an electrical signal of the touch screen. The metal wiring 107 is formed of a conductive paste material containing flaky silver, for example, even if it is bent and continuous. The connection electrode 108 is an electrode that connects the metal wiring 107 to the first electrode 103 and the second electrode 104. The connection terminal 109 is a connection terminal provided on the end of the metal wiring 107 opposite to the connection electrode 108 and connected to the drive element circuit.
然後，也參照圖8(a)、圖8(b)及圖9(a)、圖9(b)對觸控式螢幕感測器101的製造方法加以說明。圖8(a)為用來 說明圖7所示的觸控式螢幕感測器的製造方法的示意平面圖，圖8(b)為圖8(a)的VIII(b)-VIII(b)線的示意截面圖。圖9(a)為用來說明圖7所示的觸控式螢幕感測器的製造方法的示意平面圖，圖9(b)為圖9(a)的IX(b)-IX(b)線的示意截面圖。 Next, a method of manufacturing the touch screen sensor 101 will be described with reference to FIGS. 8(a), 8(b), 9(a), and 9(b). Figure 8 (a) is used A schematic plan view of a method of manufacturing the touch screen sensor shown in FIG. 7 will be described, and FIG. 8(b) is a schematic cross-sectional view taken along line VIII(b)-VIII(b) of FIG. 8(a). 9(a) is a schematic plan view for explaining a method of manufacturing the touch screen sensor shown in FIG. 7, and FIG. 9(b) is a line IX(b)-IX(b) of FIG. 9(a). Schematic cross-section of the figure.
首先，如圖8(a)、圖8(b)所示那樣，在基板102的表面上形成第二電極104(X電極)及第二樹脂層106。第二電極104及第二樹脂層106的形成方法例如可使用國際公開第2014/002770號手冊中記載的方法。 First, as shown in FIGS. 8(a) and 8(b), a second electrode 104 (X electrode) and a second resin layer 106 are formed on the surface of the substrate 102. For the method of forming the second electrode 104 and the second resin layer 106, for example, the method described in the International Publication No. 2014/002770 can be used.
所述方法中，首先將依次配置有支撐膜、導電膜及感光性樹脂層的感光性導電膜(未圖示)層疊在基板102的表面上。導電膜是由形成第二電極104的材料所構成，感光性樹脂層是由形成第二樹脂層106的材料所構成。然後，在感光性導電膜上配置形成有第二電極104的電極圖案的遮光掩模，隔著遮光掩模對導電膜及感光性樹脂層照射光化射線。然後，去掉遮光掩模，進而將支撐膜剝離，對導電膜及感光性樹脂層照射光化射線。接著，通過顯影將未硬化部分除去，在基板102的表面上形成第二電極104及第二樹脂層106。 In the above method, a photosensitive conductive film (not shown) in which a support film, a conductive film, and a photosensitive resin layer are sequentially disposed is laminated on the surface of the substrate 102. The conductive film is composed of a material forming the second electrode 104, and the photosensitive resin layer is composed of a material forming the second resin layer 106. Then, a light-shielding mask in which the electrode pattern of the second electrode 104 is formed is placed on the photosensitive conductive film, and the conductive film and the photosensitive resin layer are irradiated with actinic rays through a light-shielding mask. Then, the light-shielding mask is removed, and the support film is peeled off, and the conductive film and the photosensitive resin layer are irradiated with actinic rays. Next, the uncured portion is removed by development, and the second electrode 104 and the second resin layer 106 are formed on the surface of the substrate 102.
然後，如圖9(a)、圖9(b)所示那樣，在形成有第二電極104及第二樹脂層106的基板102的表面上，進一步形成第一電極103(Y電極)及第一樹脂層105。第一電極103及第一樹脂層105的形成方法例如可使用與第二電極104及第二樹脂層106的形成方法相同的方法。所述情況下，作為感光性導電膜，使用 導電膜是由形成第一電極103的材料所構成、且感光性樹脂層是由形成第一樹脂層105的材料所構成的感光性導電膜。另外，作為配置在感光性導電膜上的遮光掩模，使用形成有第一電極103的電極圖案的遮光掩模。 Then, as shown in FIGS. 9(a) and 9(b), the first electrode 103 (Y electrode) and the first electrode are further formed on the surface of the substrate 102 on which the second electrode 104 and the second resin layer 106 are formed. A resin layer 105. For the method of forming the first electrode 103 and the first resin layer 105, for example, the same method as the method of forming the second electrode 104 and the second resin layer 106 can be used. In this case, it is used as a photosensitive conductive film. The conductive film is composed of a material forming the first electrode 103, and the photosensitive resin layer is a photosensitive conductive film composed of a material forming the first resin layer 105. Further, as a light-shielding mask disposed on the photosensitive conductive film, a light-shielding mask in which an electrode pattern of the first electrode 103 is formed is used.
接著，如圖7所示那樣，在基板102的表面上形成金屬佈線107、連接電極108及連接端子109。金屬佈線107例如是使用含有薄片狀銀的導電膏材料，利用網版印刷法而與連接電極108同時形成。 Next, as shown in FIG. 7, the metal wiring 107, the connection electrode 108, and the connection terminal 109 are formed on the surface of the substrate 102. The metal wiring 107 is formed simultaneously with the connection electrode 108 by a screen printing method using, for example, a conductive paste material containing flaky silver.
如以上所說明那樣，本實施形態的觸控式螢幕感測器101具備上文所述的導電膜基板1，因此即便在彎折預定區域α處被彎折，也可抑制第一電極103及第二電極104斷線。 As described above, since the touch panel sensor 101 of the present embodiment includes the conductive film substrate 1 described above, the first electrode 103 can be suppressed even if it is bent at the predetermined bending region α. The second electrode 104 is broken.
本新型創作的導電膜基板及觸控式螢幕感測器不限定於以上說明的實施形態，只要不偏離本新型創作的主旨則可適當變更。 The conductive film substrate and the touch screen sensor of the present invention are not limited to the above-described embodiments, and can be appropriately changed without departing from the gist of the present invention.
例如，所述實施形態中，關於配置在基板上的電極，以電極僅為第一電極及第二電極的形式進行了說明，但也可設置其他電極，另外，也可設置與第一電極及第二電極絕緣的虛設電極。虛設電極可配置在多個第一電極之間。另外，虛設電極可配置在多個第二電極之間。虛設電極也可配置在彎折預定區域上，但優選的是不配置在彎折預定區域上。在虛設電極不配置在彎折預定區域上的情況下，在彎折預定區域處將導電膜基板或觸控式螢幕感測器彎折時虛設電極不會破損。由此，可提高導電膜基板及觸 控式螢幕感測器的創意性。 For example, in the above-described embodiment, the electrodes disposed on the substrate are described as being only the first electrode and the second electrode. However, other electrodes may be provided, and the first electrode may be provided. A dummy electrode insulated by a second electrode. The dummy electrode may be disposed between the plurality of first electrodes. In addition, the dummy electrode may be disposed between the plurality of second electrodes. The dummy electrode may also be disposed on the predetermined region of the bend, but is preferably not disposed on the predetermined region of the bend. In the case where the dummy electrode is not disposed on the predetermined bending region, the dummy electrode is not broken when the conductive film substrate or the touch screen sensor is bent at the predetermined bending region. Thereby, the conductive film substrate and the contact can be improved The creative nature of the control screen sensor.
本說明書中所謂虛設電極，為不具有以電特性的方式流通電流的功能的電極，其形狀並無特別限定。通過形成虛設電極，可抑制在觸控式螢幕感測器的傳感區域中電極的圖案被看到的現象(圖案可見現象)。 The dummy electrode in the present specification is an electrode that does not have a function of flowing a current by electrical characteristics, and the shape thereof is not particularly limited. By forming the dummy electrode, it is possible to suppress the phenomenon that the pattern of the electrode is seen in the sensing region of the touch screen sensor (pattern visible phenomenon).
Claims (16)
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|---|---|---|---|
| TW106209314U TWM556395U (en) | 2017-06-27 | 2017-06-27 | Conductive film substrate, touch screen sensor and module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106209314U TWM556395U (en) | 2017-06-27 | 2017-06-27 | Conductive film substrate, touch screen sensor and module |
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| Publication Number | Publication Date |
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| TWM556395U true TWM556395U (en) | 2018-03-01 |
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