TW202304265A - Stretchable conductive substrate - Google Patents
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本發明涉及一種導電基板,特別是涉及一種可拉伸的導電基板,其可應用於柔性電子裝置例如電子皮膚及柔性顯示屏。The present invention relates to a conductive substrate, in particular to a stretchable conductive substrate, which can be applied to flexible electronic devices such as electronic skins and flexible display screens.
隨著電子技術的發展,柔性電子裝置越來越受到重視。由於柔性電子裝置在一定程度的形變(如彎折或拉伸形變)條件下仍然可以正常工作,相較於傳統的電子裝置具有更高的使用靈活性,而更能適應不同的工作環境。With the development of electronic technology, more and more attention has been paid to flexible electronic devices. Since flexible electronic devices can still work normally under a certain degree of deformation (such as bending or stretching deformation), compared with traditional electronic devices, they have higher flexibility in use and are more adaptable to different working environments.
現有技術中,有利用柔性材質的基板來取代剛性材質的基板,讓電子裝置可以被彎折或拉伸,從而增加使用操作的便利性。然而,這樣的做法不但無法讓金屬導線免受折曲或拉伸應力的損害,也無法抑制金屬導線被折曲或拉伸所引起的阻抗變化。In the prior art, substrates made of flexible materials are used to replace substrates made of rigid materials, so that electronic devices can be bent or stretched, thereby increasing the convenience of use and operation. However, such an approach not only cannot prevent the metal wire from being damaged by bending or tensile stress, but also cannot suppress the impedance change caused by the bending or stretching of the metal wire.
本發明所要解決的技術問題在於,針對現有技術的不足提供一種能夠兼顧拉伸性能和電性穩定性的可拉伸的導電基板。The technical problem to be solved by the present invention is to provide a stretchable conductive substrate capable of taking both stretchability and electrical stability into account in view of the deficiencies in the prior art.
為了解決上述的技術問題,本發明所採用的其中一技術方案是提供一種可拉伸的導電基板,其包括一基板以及一線路層。所述基板具有多個預定區域,所述線路層形成於所述基板上,並於每一所述預定區域內定義出一導電觸點組和至少一與所述導電觸點組相連接的彈性導線結構。所述彈性導線結構具有至少一圖案化線段,且所述彈性導線結構沿所述基板的一長度方向的拉伸率為0%至60%。In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a stretchable conductive substrate, which includes a substrate and a circuit layer. The substrate has a plurality of predetermined areas, the circuit layer is formed on the substrate, and a conductive contact group and at least one elastic contact group connected to the conductive contact group are defined in each predetermined area. wire structure. The elastic wire structure has at least one patterned line segment, and the stretch rate of the elastic wire structure along a length direction of the substrate is 0% to 60%.
在本發明的一實施例中,所述圖案化線段具有相連的至少一第一彎曲部分及至少一第二彎曲部分,且所述第一彎曲部分的曲率小於所述第二彎曲部分的曲率。In an embodiment of the present invention, the patterned line segment has at least one first curved portion and at least one second curved portion connected, and the curvature of the first curved portion is smaller than the curvature of the second curved portion.
在本發明的一實施例中,所述第一彎曲部分的曲率為0.1 mm至10 mm,且所述第二彎曲部分的曲率為0.5 mm至15 mm。In an embodiment of the present invention, the curvature of the first curved portion is 0.1 mm to 10 mm, and the curvature of the second curved portion is 0.5 mm to 15 mm.
在本發明的一實施例中,所述圖案化線段具有多個空心圖案單元,多個所述空心圖案單元彼此相連且沿所述基板的所述長度方向線性排列。每一所述空心圖案單元的形狀為N邊形,N為大於或等於3的正整數。In an embodiment of the present invention, the patterned line segment has a plurality of hollow pattern units, and the plurality of hollow pattern units are connected to each other and arranged linearly along the length direction of the substrate. The shape of each hollow pattern unit is N-gon, and N is a positive integer greater than or equal to 3.
在本發明的一實施例中,所述可拉伸的導電基板還包括一彈性導電層,所述彈性導電層形成於所述線路層上。In an embodiment of the present invention, the stretchable conductive substrate further includes an elastic conductive layer formed on the circuit layer.
在本發明的一實施例中,所述彈性導電層是由一導電組合物所形成。基於100 wt%的所述導電組合物,所述導電組合物包含45 wt%至65 wt%的導電材料,且所述導電材料選自於金、鈀、鉑、鎳、銅、銅包銀、石墨烯和奈米碳管所組成的群組。In an embodiment of the invention, the elastic conductive layer is formed of a conductive composition. Based on 100 wt% of the conductive composition, the conductive composition comprises 45 wt% to 65 wt% conductive material, and the conductive material is selected from gold, palladium, platinum, nickel, copper, copper-clad silver, graphite group consisting of alkenes and carbon nanotubes.
在本發明的一實施例中,每一所述空心圖案單元包括多個轉角部分以及多個直邊部分,且任兩個相鄰的所述轉角部分之間存在一個所述直邊部分。所述彈性導電層包括多個彈性導電結構,且每一所述空心圖案單元的多個所述轉角部分上分別具有一個彈性導電結構。In an embodiment of the present invention, each of the hollow pattern units includes a plurality of corner portions and a plurality of straight-edge portions, and there is one straight-edge portion between any two adjacent corner portions. The elastic conductive layer includes a plurality of elastic conductive structures, and each of the plurality of corner portions of the hollow pattern unit has an elastic conductive structure.
在本發明的一實施例中,每一所述空心圖案單元包括多個轉角部分以及多個直邊部分,且任兩個相鄰的所述轉角部分之間存在一個所述直邊部分。所述彈性導電層包括多個彈性導電結構,且每一所述空心圖案單元的多個所述直邊部分上分別具有一個彈性導電結構。In an embodiment of the present invention, each of the hollow pattern units includes a plurality of corner portions and a plurality of straight-edge portions, and there is one straight-edge portion between any two adjacent corner portions. The elastic conductive layer includes a plurality of elastic conductive structures, and each of the hollow pattern units has an elastic conductive structure on the plurality of straight edge portions.
在本發明的一實施例中,每一所述轉角部或所述直邊部分與相對應的所述彈性導電結構之間的重疊率為5%至50%。In an embodiment of the present invention, the overlapping ratio between each corner portion or the straight portion and the corresponding elastic conductive structure is 5% to 50%.
在本發明的一實施例中,所述可拉伸的導電基板還包括一彈性導電層,所述彈性導電層形成於所述線路層上,且包括多個彈性導電結構。所述圖案化線段具有多個實心圖案單元以及多個橋接單元,多個所述實心圖案單元彼此分開一段距離且沿所述基板的所述長度方向線性排列,且任兩個相鄰的所述實心圖案單元通過一個所述彈性導電結構形成電連接。每一所述實心圖案單元的形狀為N邊形,N為大於或等於3的正整數。In an embodiment of the present invention, the stretchable conductive substrate further includes an elastic conductive layer, the elastic conductive layer is formed on the circuit layer, and includes a plurality of elastic conductive structures. The patterned line segment has a plurality of solid pattern units and a plurality of bridge units, the plurality of solid pattern units are separated from each other by a distance and arranged linearly along the length direction of the substrate, and any two adjacent The solid pattern units are electrically connected through one elastic conductive structure. The shape of each solid pattern unit is N-gon, and N is a positive integer greater than or equal to 3.
本發明的其中一有益效果在於,本發明的可拉伸的導電基板,其能通過“所述彈性導線結構具有至少一圖案化線段,且所述彈性導線結構沿所述基板的一長度方向的拉伸率為0%至60%”的技術特徵,以減少甚至消除導線的結構脆弱點,從而大大降低導線在拉伸過程中斷裂的風險,而且可以讓導線具有良好的拉伸回復性能和電性穩定性(拉伸狀態下的阻抗變化很小)。One of the beneficial effects of the present invention is that the stretchable conductive substrate of the present invention can pass through "the elastic wire structure has at least one patterned line segment, and the elastic wire structure is along a length direction of the substrate 0% to 60%" technical feature to reduce or even eliminate the structural weakness of the wire, thereby greatly reducing the risk of wire breakage during stretching, and allowing the wire to have good stretch recovery performance and electrical conductivity Sexual stability (little change in impedance under tension).
更進一步來說,可拉伸的導電基板可進一步包括一彈性導電層,彈性導電層可由一導電組合物(如導電漿料)施加於線路層上而形成,既可以讓金屬導線免受折曲或拉伸應力的損害,又可以抑制金屬導線被折曲或拉伸所引起的阻抗變化。Furthermore, the stretchable conductive substrate can further include an elastic conductive layer, which can be formed by applying a conductive composition (such as conductive paste) on the circuit layer, which can prevent the metal wire from bending Or the damage of tensile stress, and can suppress the impedance change caused by the bending or stretching of the metal wire.
為使能更進一步瞭解本發明的特徵及技術內容,請參閱以下有關本發明的詳細說明與圖式,然而所提供的圖式僅用於提供參考與說明,並非用來對本發明加以限制。In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the provided drawings are only for reference and description, and are not intended to limit the present invention.
以下是通過特定的具體實施例來說明本發明所公開有關“可拉伸的導電基板”的實施方式,本領域技術人員可由本說明書所公開的內容瞭解本發明的優點與效果。本發明可通過其他不同的具體實施例加以施行或應用,本說明書中的各項細節也可基於不同觀點與應用,在不背離本發明的構思下進行各種修改與變更。另外,本發明的附圖僅為簡單示意說明,並非依實際尺寸的描繪,事先聲明。以下的實施方式將進一步詳細說明本發明的相關技術內容,但所公開的內容並非用以限制本發明的保護範圍。另外,本文中所使用的術語“或”,應視實際情況可能包括相關聯的列出項目中的任一個或者多個的組合。The implementation of the "stretchable conductive substrate" disclosed in the present invention is described below through specific examples. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.
除非另有限定,本發明所用術語均為本領域技術人員通常理解的含義。以下實施例所使用的材料,如無特別說明則為市售的材料。以下實施例所使用的操作或儀器,如無特別說明則為本領域常見的操作或儀器。以下實施例所述的比例、含量等,如無特別說明則以重量計。Unless otherwise defined, the terms used in the present invention have meanings commonly understood by those skilled in the art. The materials used in the following examples are commercially available materials unless otherwise specified. The operations or instruments used in the following examples are common operations or instruments in the art unless otherwise specified. The proportions, contents, etc. described in the following examples are by weight unless otherwise specified.
[第一實施例][first embodiment]
請參閱圖1及圖2,圖1顯示本發明的可拉伸的導電基板Z的主架構,圖2顯示可拉伸的導電基板Z上的其中一種導線設計。如上述圖式所示,可拉伸的導電基板Z主要包括一基板1及一第一線路層2。基板1具有多個預定區域100,其可以是電子器件如發光元件及感測器等的設置區域,但不限於此。第一線路層2形成於基板1上,並於每一預定區域100內定義出一導電觸點組21和至少一與導電觸點組21相連接的彈性導線結構22。實際應用時,導電觸點組21可包括多個導電觸點211,其可作為電子器件的連接介面和/或訊號傳輸介面;導電觸點211可以接觸墊的形式存在,但不限於此。需要說明的是,每一預定區域100內的導電觸點211與彈性導線結構22的數量和分佈位置並沒有特別的限制,可以根據實際需要進行調整和設計。Please refer to FIG. 1 and FIG. 2 , FIG. 1 shows the main structure of the stretchable conductive substrate Z of the present invention, and FIG. 2 shows one of the wire designs on the stretchable conductive substrate Z. As shown in the above figures, the stretchable conductive substrate Z mainly includes a
值得一提的是,彈性導線結構22具有至少一圖案化線段221,從而具有良好的拉伸回復性能,可以承受一定程度的拉伸形變,即使被拉伸也只會引起微小的阻抗變化;經測試,彈性導線結構22沿基板1的一長度方向的拉伸率為0%至60%。It is worth mentioning that the
在本實施例中,基板1可採用具有可彎曲和可拉伸特性的彈性基板,基板1具有相對的一第一表面101(如上表面)及一第二表面102(如下表面),且第一線路層2形成於基板1的第一表面101上,用以提供導電觸點和訊號傳輸線。實際應用時,基板1的材料可舉出:聚對苯二甲酸乙二酯(Polyethylene terephthalate, PET)、聚甲基丙烯酸甲酯(Polymethyl methacrylate, PMMA)、聚醯亞胺(Polyimide, PI)和聚碳酸酯(Polycarbonate, PC);第一線路層2的材料可舉出:金、銀、銅等導電性良好的金屬和它們的合金。然而,本發明不以上述所舉例子為限。In this embodiment, the
更進一步來說,如圖2所示,彈性導線結構22的圖案化線段221具有相連的至少一第一彎曲部分221A及至少一第二彎曲部分221B,其中第一彎曲部分221A的曲率小於第二彎曲部分221B的曲率,且第一彎曲部分221A的彎曲方向不同於第二彎曲部分221B的彎曲方向。較佳地,第一彎曲部分221A的曲率為0.1 mm至10 mm,即第一彎曲部分221A的活動拉伸裕度較小,第二彎曲部分221B的曲率為0.5 mm至15 mm,即第二彎曲部分221B的活動拉伸裕度較大。藉由這樣的結構設計,可以減少甚至消除導線的結構脆弱點,從而大大降低導線在拉伸過程中斷裂的風險,而且可以讓導線具有良好的拉伸回復性能和電性穩定性(拉伸狀態下的阻抗變化很小)。需要說明的是,當第一彎曲部分221A和第二彎曲部分221B的數量各為兩個或兩個以上時,它們的排列方式並沒有特別的限制;舉例來說,兩個第一彎曲部分221A和兩個第二彎曲部分221B可按ABAB或ABBA方式排列以形成圖案化線段221。Furthermore, as shown in FIG. 2 , the
請參閱圖3及圖4,顯示導電基板Z的其他可實施架構。如圖3及圖4所示,本發明的可拉伸的顯示屏模組P可進一步包括一第二線路層4,以提升線路佈局設計的彈性。第二線路層4可以避開第一線路層2所在位置的方式形成於基板1的第一表面101上,即第二線路層4和第一線路層2在基板1的第一表面101上互不重疊;或者,第二線路層4可形成於基板1的第二表面102上。Please refer to FIG. 3 and FIG. 4 , which show other possible structures of the conductive substrate Z. As shown in FIG. 3 and FIG. 4 , the stretchable display module P of the present invention may further include a
更進一步來說,第二線路層4可包括多個訊號傳輸線41,用以傳輸電訊號(電流訊號或電壓訊號)。值得一提的是,訊號傳輸線41可採用本實施例所述的導線設計(即圖案化線段221具有曲率較小的第一彎曲部分221A及曲率較大的第二彎曲部分221B),以獲得相同或相似的技術效果。實際應用時,在圖3所示的架構下,第二線路層4可以直接接觸的方式與第一線路層2形成電連接。另外,在圖4所示的架構下,第二線路層4可通過一或多個導通孔(圖中未顯示)與第一線路層2形成電連接;舉例來說,預定區域100內的其中一個導電觸點211可通過對應的導通孔與其中一個訊號傳輸線41形成電連接。Furthermore, the
雖然在圖3及圖4中所示出的訊號傳輸線41的延伸方向是平行於基板1的長度方向,但是根據不同的線路佈局設計,訊號傳輸線41的延伸方向也可以是垂直於基板1的長度方向。Although the extension direction of the
[第二實施例][Second embodiment]
請參閱圖5及圖6並配合圖1,圖5及圖6顯示可拉伸的導電基板Z上的另外一種導線設計。如上述圖式所示,可拉伸的導電基板Z主要包括一基板1及一第一線路層2。基板1具有多個預定區域100,第一線路層2形成於基板1上,並於每一預定區域100內定義出一導電觸點組21和至少一與導電觸點組21相連接的彈性導線結構22。彈性導線結構22具有至少一圖案化線段221,從而具有良好的拉伸回復性能,且彈性導線結構22沿基板1的一長度方向的拉伸率為0%至60%。第一實施方式中提到的相關技術細節在本實施例中依然有效,為了減少重複,這裡不再贅述。相應地,本實施例中提到的相關技術細節也可應用在第一實施方式中。Please refer to FIG. 5 and FIG. 6 together with FIG. 1 . FIG. 5 and FIG. 6 show another wire design on the stretchable conductive substrate Z. As shown in the above figures, the stretchable conductive substrate Z mainly includes a
在本實施例中,圖案化線段221是採用不同的結構設計,即圖案化線段221具有多個空心圖案單元221C,多個空心圖案單元221C彼此相連且沿基板1的長度方向線性排列;空心圖案單元221C的形狀為N邊形,N為大於或等於3的正整數。藉由這樣的結構設計,可以減少甚至消除導線的結構脆弱點,從而大大降低導線在拉伸過程中斷裂的風險,而且可以讓導線具有良好的拉伸回復性能和電性穩定性(拉伸狀態下的阻抗變化很小)。需要說明的是,空心圖案單元221C的形狀並沒有特別的限制;舉例來說,如圖5及圖6所示,空心圖案單元221C的形狀可以是四邊形或六邊形。In this embodiment, the patterned
請配合參閱圖7至圖10,顯示本發明的可拉伸的導電基板Z的主架構的優化設計。如圖7至圖10所示,可拉伸的導電基板Z可進一步包括一彈性導電層3,且彈性導電層3形成於第一線路層2上。更進一步來說,彈性導電層3包括多個彈性導電結構31,每一空心圖案單元221C包括多個轉角部分2211及多個直邊部分2212,其中任兩個相鄰的轉角部分2211之間存在一個直邊部分2212,且多個直邊部分2212上可分別具有一個彈性導電結構31,如圖7及圖8所示,或者多個轉角部分2211上可分別具有一個彈性導電結構31,如圖9及圖10所示。考量整體的拉伸效果和結構適應性(適應不同的立體結構的能力),每一轉角部分2211或直邊部分2212與對應的彈性導電結構31之間的重疊率為5%至50%。Please refer to FIG. 7 to FIG. 10 , which show the optimized design of the main structure of the stretchable conductive substrate Z of the present invention. As shown in FIGS. 7 to 10 , the stretchable conductive substrate Z may further include an elastic
請再配合參閱圖11及圖12,實際應用時,彈性導電結構31可以只披覆在轉角部分2211或直邊部分2212的上表面上,如圖11所示,或者彈性導電結構31可以不只披覆在轉角部分2211或直邊部分2212的上表面上,同時也披覆在轉角部分2211或直邊部分2212的側表面上,如圖12所示。以上所述只是可行的實施方式,而並非用以限制本發明。Please refer to Fig. 11 and Fig. 12 again. In actual application, the elastic
彈性導電層3可由一導電組合物(如導電漿料)所形成,導電組合物可以導電漿料的形式施加,施加方式可以是印刷、點膠、噴印或轉印,但本發明並不限於此。導電組合物主要包含45 wt%至65 wt%的導電材料(基於100 wt%的導電組合物),其中導電材料是選自於金、鈀、鉑、鎳、銅、銅包銀、石墨烯和奈米碳管所組成的群組。需要說明的是,導電材料的形狀並沒有特別的限制,可以是片狀、球狀或樹枝狀。實際應用時,導電組合物還可包含10 wt%至20 wt%的黏合劑、0 wt%至35 wt%的溶劑及0.1 wt%至3 wt%的加工助劑(基於100 wt%的導電組合物)。The elastic
在一些實施例中,導電材料在導電組合物中的含量可以是45 wt%、50 wt%、55 wt%、60 wt%或65 wt%;黏合劑在導電組合物中的含量可以是10 wt%、15 wt%或20 wt%。溶劑在導電組合物中的含量可以是5 wt%、10 wt%、15 wt%、20 wt%、25 wt%、30 wt%或35 wt%;加工助劑在導電組合物中的含量可以是0.5 wt%、1.0 wt%、1.5 wt%、2.0 wt%、2.5 wt%或3.0 wt%。In some embodiments, the content of the conductive material in the conductive composition can be 45 wt%, 50 wt%, 55 wt%, 60 wt% or 65 wt%; the content of the binder in the conductive composition can be 10 wt%. %, 15 wt% or 20 wt%. The content of the solvent in the conductive composition can be 5 wt%, 10 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt% or 35 wt%; the content of the processing aid in the conductive composition can be 0.5 wt%, 1.0 wt%, 1.5 wt%, 2.0 wt%, 2.5 wt% or 3.0 wt%.
黏合劑的具體例包括:酚醛樹脂、環氧樹脂、丙烯酸酯單體、聚氨酯、二異氰酸酯、甲基丙烯酸羥乙酯、丙烯腈-丁二烯-苯乙烯共聚物(ABS)、耐綸(Nylon)、聚乳酸(PLA)、聚醚碸(PES)、乙基纖維素、羥乙基甲基纖維素及羥乙基纖維素。溶劑的具體例包括:丁基溶酐乙酸酯(BCA)、二乙二醇丁醚醋酸酯、二甘醇乙醚醋酸酯、異佛丙酮、N-羥甲基丙烯醯胺(NMA)、二甘醇、四氫呋喃、聚乙二醇及二元醇(如丁二醇)。加工助劑的具體例包括:分散劑、流平劑、防氧劑及穩定劑。然而,本發明並不以上述所舉例子為限。Specific examples of the adhesive include: phenolic resin, epoxy resin, acrylate monomer, polyurethane, diisocyanate, hydroxyethyl methacrylate, acrylonitrile-butadiene-styrene copolymer (ABS), nylon (Nylon ), polylactic acid (PLA), polyethersulfone (PES), ethyl cellulose, hydroxyethyl methyl cellulose and hydroxyethyl cellulose. Specific examples of solvents include: butyl soluble anhydride acetate (BCA), diethylene glycol butyl ether acetate, diethylene glycol ethyl ether acetate, isophoracetone, N-methylolacrylamide (NMA), diethylene glycol , tetrahydrofuran, polyethylene glycol and glycols (such as butanediol). Specific examples of processing aids include dispersants, leveling agents, antioxidants, and stabilizers. However, the present invention is not limited to the above examples.
請再配合參閱圖3及圖4,在可拉伸的顯示屏模組P進一步包括另一第二線路層4的架構下,其訊號傳輸線41可採用本實施例所述的導線設計(即圖案化線段221具有多個彼此相連且呈線性排列的空心圖案單元221C),以獲得相同或相似的技術效果。Please refer to FIG. 3 and FIG. 4 again. Under the structure that the stretchable display module P further includes another
[第三實施例][Third embodiment]
請參閱圖11並配合圖1,圖11顯示可拉伸的導電基板Z上的又一種導線設計。如上述圖式所示,可拉伸的導電基板Z包括一基板1、一第一線路層2及一彈性導電層3,第一線路層2形成於基板1上,且彈性導電層3形成於第一線路層2上。又,基板1具有多個預定區域100,第一線路層2於每一預定區域100內定義出一導電觸點組21和至少一與導電觸點組21相連接的彈性導線結構22。彈性導線結構22具有至少一圖案化線段221,從而具有良好的拉伸回復性能,且彈性導線結構22沿基板1的一長度方向的拉伸率為0%至60%。第一和第二實施方式中提到的相關技術細節在本實施例中依然有效,為了減少重複,這裡不再贅述。相應地,本實施例中提到的相關技術細節也可應用在第一和第二實施方式中。Please refer to FIG. 11 together with FIG. 1 . FIG. 11 shows another wire design on the stretchable conductive substrate Z. As shown in the above figure, the stretchable conductive substrate Z includes a
在本實施例中,圖案化線段221是採用不同的結構設計,即圖案化線段221具有多個實心圖案單元221D,多個實心圖案單元221D彼此分開一段距離且沿基板1的長度方向線性排列;實心圖案單元221D的形狀為N邊形,N為大於或等於3的正整數。又,彈性導電層3包括多個彈性導電結構31,且任兩個相鄰的實心圖案單元221D通過一個彈性導電結構31形成電連接。藉由這樣的結構設計,可以減少甚至消除導線的結構脆弱點,從而大大降低導線在拉伸過程中斷裂的風險,而且可以讓導線具有良好的拉伸回復性能和電性穩定性(拉伸狀態下的阻抗變化很小)。需要說明的是,實心圖案單元221D的形狀並沒有特別的限制,只要可以電導通兩個相鄰的實心圖案單元221D即可。In this embodiment, the patterned
請再配合參閱圖3及圖4,在可拉伸的顯示屏模組P進一步包括另一第二線路層4的架構下,其訊號傳輸線41可採用本實施例所述的導線設計(即圖案化線段221具有多個彼此分開一段距離且呈線性排列的實心圖案單元221D),以獲得相同或相似的技術效果。Please refer to FIG. 3 and FIG. 4 again. Under the structure that the stretchable display module P further includes another
[第四實施例][Fourth Embodiment]
請參閱圖14至圖16,圖14顯示應用本發明的可拉伸的導電基板Z的電子裝置P,圖15及圖16顯示電子裝置P的使用狀態。如上述圖式所示,電子裝置P可包括如第一、第二或第三實施例所述的可拉伸的導電基板Z、多個電子器件E及一或多個控制單元U。多個電子器件E分別設置於可拉伸的導電基板Z的多個預定區域100內,且每一個電子器件E電性連接並固著於(Bonded to)所在預定區域100中的導電觸點組21上,控制單元U電性連接於可拉伸的導電基板Z,且可通過可拉伸的導電基板Z對電子器件E進行控制。Please refer to FIG. 14 to FIG. 16 , FIG. 14 shows an electronic device P applying the stretchable conductive substrate Z of the present invention, and FIG. 15 and FIG. 16 show the use status of the electronic device P. As shown in the above figures, the electronic device P may include a stretchable conductive substrate Z as described in the first, second or third embodiment, a plurality of electronic devices E and one or more control units U. A plurality of electronic devices E are respectively arranged in a plurality of
為了便於理解,這裡以電子皮膚為例對本實施例提供的電子裝置P進行說明。如圖15及圖16所示,電子裝置P的多個電子器件E可包括一或多個發光元件(如發光二極體)及一或多個感測器,且於使用時與人體皮膚S接觸以監測呼吸、心跳率、運動、睡眠等數據。值得一提的是,在可拉伸的導電基板Z的存在下,電子裝置P可以承受一定程度的長度或厚度維度上的拉伸力和折曲張力,即使在使用過程中發生拉伸或彎曲形變,也可以正常發揮作用,因此電子裝置P的性能並不會受到負面影響。For ease of understanding, the electronic device P provided in this embodiment is described here by taking the electronic skin as an example. As shown in FIG. 15 and FIG. 16, a plurality of electronic devices E of the electronic device P may include one or more light-emitting elements (such as light-emitting diodes) and one or more sensors, and are in contact with human skin S during use. Contacts to monitor breathing, heart rate, exercise, sleep and more. It is worth mentioning that in the presence of the stretchable conductive substrate Z, the electronic device P can withstand stretching force and bending tension in the length or thickness dimension to a certain extent, even if it is stretched or bent during use. Deformation can also function normally, so the performance of the electronic device P will not be negatively affected.
[實施例的有益效果][Advantageous Effects of Embodiment]
本發明的其中一有益效果在於,本發明的可拉伸的導電基板,其能通過“所述彈性導線結構具有至少一圖案化線段,且所述彈性導線結構沿所述基板的一長度方向的拉伸率為0%至60%”的技術特徵,以減少甚至消除導線的結構脆弱點,從而大大降低導線在拉伸過程中斷裂的風險,而且可以讓導線具有良好的拉伸回復性能和電性穩定性(拉伸狀態下的阻抗變化很小)。One of the beneficial effects of the present invention is that the stretchable conductive substrate of the present invention can pass through "the elastic wire structure has at least one patterned line segment, and the elastic wire structure is along a length direction of the substrate 0% to 60%" technical feature to reduce or even eliminate the structural weakness of the wire, thereby greatly reducing the risk of wire breakage during stretching, and allowing the wire to have good stretch recovery performance and electrical conductivity Sexual stability (little change in impedance under tension).
更進一步來說,可拉伸的導電基板可進一步包括一彈性導電層,彈性導電層可由一導電組合物(如導電漿料)施加於線路層上而形成,既可以讓金屬導線免受折曲或拉伸應力的損害,又可以抑制金屬導線被折曲或拉伸所引起的阻抗變化。Furthermore, the stretchable conductive substrate can further include an elastic conductive layer, which can be formed by applying a conductive composition (such as conductive paste) on the circuit layer, which can prevent the metal wire from bending Or the damage of tensile stress, and can suppress the impedance change caused by the bending or stretching of the metal wire.
更進一步來說,應用本發明的可拉伸的導電基板的電子裝置,可以承受一定程度的長度或厚度維度上的拉伸力和折曲張力,即使在使用過程中發生拉伸或彎曲形變,也可以正常發揮作用。因此,此電子裝置可以適應不同的立體結構的能力,而且性能不會受到負面影響。Furthermore, the electronic device using the stretchable conductive substrate of the present invention can withstand a certain degree of stretching force and bending tension in the length or thickness dimension, even if stretching or bending deformation occurs during use, can also function normally. Therefore, the electronic device has the ability to adapt to different three-dimensional structures without negatively affecting the performance.
以上所公開的內容僅為本發明的優選可行實施例,並非因此侷限本發明的申請專利範圍,所以凡是運用本發明說明書及圖式內容所做的等效技術變化,均包含於本發明的申請專利範圍內。The content disclosed above is only a preferred feasible embodiment of the present invention, and does not therefore limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.
P:電子裝置
Z:可拉伸的導電基板
1:基板
100:預定區域
101:第一表面
102:第二表面
2:線路層
21:導電觸點組
211:導電觸點
22:彈性導線結構
221:圖案化線段
221A:第一彎曲部分
221B:第二彎曲部分
221C:空心圖案單元
2211:轉角部分
2212:直邊部分
221D:實心圖案單元
3:彈性導電層
31:彈性導電結構
4:線路層
41:訊號傳輸線
E:電子器件
U:控制單元
S:人體皮膚
P: electronic device
Z: stretchable conductive substrate
1: Substrate
100: scheduled area
101: First Surface
102: second surface
2: Line layer
21: Conductive contact group
211: Conductive contact
22: Elastic wire structure
221: Patterned
圖1為本發明第一實施例的可拉伸的導電基板的其中一結構示意圖。FIG. 1 is a schematic structural view of a stretchable conductive substrate according to a first embodiment of the present invention.
圖2為圖1中的II部分的局部放大圖,顯示本發明第一實施例的導線設計。FIG. 2 is a partially enlarged view of part II in FIG. 1 , showing the wire design of the first embodiment of the present invention.
圖3為本發明第一實施例的可拉伸的導電基板的另外一結構示意圖。FIG. 3 is another structural schematic diagram of the stretchable conductive substrate according to the first embodiment of the present invention.
圖4為本發明第一實施例的可拉伸的導電基板的另外再一結構示意圖。FIG. 4 is another structural schematic diagram of the stretchable conductive substrate according to the first embodiment of the present invention.
圖5及圖6分別為圖1中的II部分的局部放大圖,顯示本發明第二實施例的導線設計。FIG. 5 and FIG. 6 are partial enlarged views of part II in FIG. 1 , showing the wire design of the second embodiment of the present invention.
圖7及圖8分別為圖1中的II部分的局部放大圖,顯示本發明第二實施例的導線設計的其中一種優化方式。FIG. 7 and FIG. 8 are partial enlarged views of part II in FIG. 1 , showing one optimization method of the wire design in the second embodiment of the present invention.
圖9及圖10分別為圖1中的II部分的局部放大圖,顯示本發明第二實施例的導線設計的另外一種優化方式。FIG. 9 and FIG. 10 are partial enlarged views of part II in FIG. 1 , showing another optimization method of the wire design in the second embodiment of the present invention.
圖11顯示本發明第二實施例的導線設計的優化方式的其中一種可實施態樣。FIG. 11 shows one possible implementation of the optimization method of wire design in the second embodiment of the present invention.
圖12顯示本發明第二實施例的導線設計的優化方式的另外一種可實施態樣。FIG. 12 shows another possible implementation of the wire design optimization method of the second embodiment of the present invention.
圖13為圖1中的II部分的局部放大圖,顯示本發明第四實施例的導線設計。FIG. 13 is a partially enlarged view of part II in FIG. 1 , showing the wire design of the fourth embodiment of the present invention.
圖14為應用本發明實施例的可拉伸的導電基板的電子裝置的結構示意圖。FIG. 14 is a schematic structural diagram of an electronic device using a stretchable conductive substrate according to an embodiment of the present invention.
圖15為應用本發明實施例的可拉伸的導電基板的電子裝置的其中一使用狀態示意圖。FIG. 15 is a schematic view of one of the usage states of the electronic device using the stretchable conductive substrate according to the embodiment of the present invention.
圖16為應用本發明實施例的可拉伸的導電基板的電子裝置的另外一使用狀態示意圖。FIG. 16 is a schematic diagram of another usage state of an electronic device using a stretchable conductive substrate according to an embodiment of the present invention.
Z:可拉伸的導電基板 Z: stretchable conductive substrate
1:基板 1: Substrate
100:預定區域 100: scheduled area
101:第一表面 101: First Surface
102:第二表面 102: second surface
2:線路層 2: Line layer
21:導電觸點組 21: Conductive contact group
211:導電觸點 211: Conductive contact
22:彈性導線結構 22: Elastic wire structure
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US11345784B2 (en) * | 2018-11-09 | 2022-05-31 | Panasonic Intellectual Property Management Co., Ltd. | Resin composition, and resin film, metal foil with resin, metal clad laminate, wiring board, and circuit mount component using same |
CN112616244B (en) * | 2020-12-22 | 2022-03-22 | 浙江清华柔性电子技术研究院 | Flexible circuit board and preparation method thereof |
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