TW202117520A - 觸控感測器 - Google Patents
觸控感測器 Download PDFInfo
- Publication number
- TW202117520A TW202117520A TW109132191A TW109132191A TW202117520A TW 202117520 A TW202117520 A TW 202117520A TW 109132191 A TW109132191 A TW 109132191A TW 109132191 A TW109132191 A TW 109132191A TW 202117520 A TW202117520 A TW 202117520A
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- Prior art keywords
- transparent film
- film substrate
- notch
- electrode
- laminate
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Abstract
本發明之目的為提供一種在缺口部形成梯形形狀的缺口部,且耐龜裂性優異的觸控感測器。在積層於透明薄膜基材的上部保護薄膜及下部保護薄膜中,於與表側端子及背側端子相對向的區域,形成俯視觀察時從開口端朝向後部逐漸變寬的梯形形狀的缺口部。
Description
本發明係關於一種耐龜裂(crack)性優異的觸控感測器(touch sensor)。
以往,已廣泛使用一種觸控感測器作為輸入手段。觸控感測器大多時候係與顯示裝置一同使用,以作為對於組設有有機EL(Electroluminescence,電致發光)或液晶顯示器(display)、電漿顯示器(plasma display)等顯示裝置的各種裝置等(例如售票機、ATM(Automated Teller Machine,自動櫃員機)裝置、行動電話、遊戲機)進行輸入的手段。在此種裝置中,觸控感測器係配置於顯示裝置的顯示面上,藉此,觸控感測器使得對於顯示裝置進行極為直接的輸入成為可能。
作為此種觸控感測器而言,已對各種方式的觸控感測器進行了實用化。其中被稱為靜電電容方式者,係於觸控感測器表面上流動微弱的電流以形成電場,且藉由將手指等導電體輕觸時之靜電電容值的變化轉換為電壓的降低等而進行偵測所獲得的接觸位置作為信號予以輸出。
作為靜電電容方式所使用的觸控感測器而言,已知有通常在一對相對向的基板上形成有透明電極及連接端子部者。此外,作為另一態樣,已知有透明電極及連接端子部分別形成於一片透明基板的雙面者(以下稱為雙面型觸控感測器)(例如發明專利文獻1)。
雙面型觸控感測器係可達到構件數少、觸控感測器的薄膜化、或進行捲式製程(roll-to-roll process)的製造,藉此可謀求生產力提升等。此外,由於無須黏合二片基板,故可避免二個透明電極間的位置偏移等缺失。
作為雙面型觸控感測器的構造而言,一般係廣泛地使用下列構造:將以金屬圖案形成於由樹脂或玻璃等所構成之透明薄膜基材之表面而成之透明薄膜基材的一方對向面上被覆有透明導電膜的薄膜作為上部保護薄膜,且將在透明薄膜基材之另一方對向面上被覆有透明導電膜的薄膜作為下部保護薄膜,且將上部保護薄膜與下部保護薄膜予以黏合。
觸控感測器的電極與控制電路,係通過可撓性印刷(flexible print)配線板(以下表示為FPC)而連接。位於FPC之一方端部的配線板端子部係連接於位於透明薄膜基材之表側端子及背側端子。上部保護薄膜與下部保護薄膜係在對應於FPC接著部分的位置設有缺口部,以謀求FPC與片材(sheet)端子部之接著的容易化。
在將設有缺口部的上部保護薄膜與下部保護薄膜接著於透明薄膜基材之後,經過用以配合預定的製品大小而進行切除之外形沖裁的步驟以製造雙面型觸控感測器。
然而,由於在外形沖裁模的內側設有緩衝(cushion)材,故在以外形沖裁模配合預定的製品大小進行切除時,於上部保護薄膜被抵靠外形沖裁模之內側的緩衝材而於垂直方向上施加了應力的情形下,由於缺口部的內側只有透明薄膜基材的一層露出,相對於此,缺口部的外側則為透明薄膜基材和上部保護薄膜以及下部保護薄膜等三層,故應力會集中於缺口部之內側的交界部位,而會有從自缺口部之開口端中之缺口部的內側跨越至外側的兩端往透明薄膜基材產生龜裂的問題(參照圖8)。
[先前技術文獻]
[發明專利文獻]
發明專利文獻1:日本特許第4901660號公報
[發明所欲解決之問題]
本發明之目的為提供一種解決上述問題之耐龜裂性優異的觸控感測器。
[用以解決問題的手段]
為了達成上述目的,本發明之觸控感測器係構成為具有:透明薄膜基材;表側電極,係形成於透明薄膜基材之一方的表面上;表側端子,係形成於透明薄膜基材之形成有表側電極的表面上,且連接於表側電極;背側電極,係形成於透明薄膜基材之另一方的表面上;及背側端子,係以連接於背側電極而且俯視觀察時不與表側端子重疊之方式形成於透明薄膜基材之形成有背側電極的表面上;透明薄膜基材係在透明薄膜基材之一邊的內側具有連接端子部,且透明薄膜基材係由上部保護薄膜及下部保護薄膜的一對薄膜所積層,在前述一對薄膜的雙方中,設有將與表側端子和背側端子相對向之區域作出缺口之缺口部,於俯視觀察時,成為從缺口部之開口端朝向後部逐漸變寬的梯形形狀。
此外,構成為具備:第一積層體,係具有:透明薄膜基材;表側電極,係形成於透明薄膜基材之一方的表面上;表側端子,係形成於透明薄膜基材之形成有表側電極的表面上,且連接於表側電極;背側電極,係形成於透明薄膜基材之另一方的表面上;及背側端子,係以連接於背側電極而且俯視觀察時不與表側端子重疊之方式形成於透明薄膜基材之形成有背側電極的表面上;且在透明薄膜基材之一邊的內側具有連接端子部;及第二積層體,係具有:透明薄膜基材;背側電極,係形成於透明薄膜基材之背側的表面上;及背側端子,係以連接於背側電極而且俯視觀察時不與第一積層體之連接端子部重疊之方式形成於透明薄膜基材之形成有背側電極的表面上;且於透明薄膜基材之一邊的內側具有連接端子部;在前述第一積層體及第二積層體中,於第一積層體與第二積層體之間設有接著層,在第一積層體中,係設有將與第二積層體之連接端子部相對向的區域作出缺口的缺口部,在第二積層體中,係設有將與第一積層體之連接端子部相對向之區域作出缺口的缺口部,第一積層體與第二積層體係由上部保護薄膜及下部保護薄膜的一對薄膜所積層,在前述一對薄膜的雙方中,設有將與第一積層體之連接端子部及第二積層體之連接端子部相對向的區域作出缺口之缺口部,於俯視觀察時,第一積層體、第二積層體、上部保護薄膜、下部保護薄膜的任一者均成為從缺口部之開口端朝向後部逐漸變寬的梯形形狀。
此外,亦可構成為在缺口部中,與外周線相接之前述梯形形狀之上底的外角成為30度以上60度以下。
此外,亦可構成為在從一對保護薄膜之缺口部之開口端中之缺口部的內側跨越至外側之兩端的區域中,於透明薄膜基材上設置補強層。
[發明之功效]
本發明之耐龜裂性優異的觸控感測器,由於構成為具有:透明薄膜基材;表側電極,係形成於透明薄膜基材之一方的表面上;表側端子,係形成於透明薄膜基材之形成有表側電極的表面上,且連接於表側電極;背側電極,係形成於透明薄膜基材之另一方的表面上;及背側端子,係以連接於背側電極而且俯視觀察時不與表側端子重疊之方式形成於透明薄膜基材之形成有背側電極的表面上;透明薄膜基材係在透明薄膜基材之一邊的內側具有連接端子部,且透明薄膜基材係由上部保護薄膜及下部保護薄膜的一對薄膜所積層,在前述一對薄膜的雙方中,設有將與表側端子和背側端子相對向之區域作出缺口之缺口部,於俯視觀察時,成為從缺口部之開口端朝向後部逐漸變寬的梯形形狀,故藉由設為從缺口部的開口端朝向後部逐漸變寬的梯形形狀,而緩和外形沖裁的加壓時缺口部之施加於透明薄膜基材的應力,使變成不會於透明薄膜基材的交界部位產生龜裂。
以下針對本發明之耐龜裂性優異的觸控感測器9,一面參照圖式一面說明實施形態的一例。
(觸控感測器)
本發明之觸控感測器9係構成為具有:透明薄膜基材1;表側電極5,係形成於透明薄膜基材1之一方的表面上;表側端子7,係形成於透明薄膜基材1之形成有表側電極5的表面上,且連接於表側電極5;背側電極6,係形成於透明薄膜基材1之另一方的表面上;及背側端子8,係以連接於背側電極6而且俯視觀察時不與表側端子7重疊之方式形成於透明薄膜基材1之形成有背側電極6的表面上;透明薄膜基材1係在透明薄膜基材1之一邊的內側具有連接端子部11,且透明薄膜基材1係由上部保護薄膜2及下部保護薄膜3的一對薄膜所積層,在前述一對薄膜的雙方中,設有將與表側端子7和背側端子8相對向之區域作出缺口之缺口部4,於俯視觀察時,形成從缺口部4之開口端10朝向後部12逐漸變寬的梯形形狀(參照圖1(a)、(b))。
如圖5所例示,透明薄膜基材1係形成為由上部保護薄膜2及下部保護薄膜3之一對薄膜所積層的構造,以防止來自外部的撞擊所導致的破損等,此外,由於藉由上部保護薄膜2及下部保護薄膜3層壓而成,故防止水分等自外部侵入。
如圖5所例示,在上部保護薄膜2及下部保護薄膜3中,係分別設有使設於透明薄膜基材1上的表側端子7及背側端子8露出的缺口部4,且於俯視觀察時,以從缺口部4的開口端10朝向後部12逐漸變寬的梯形形狀所形成者。
(透明薄膜基材)
作為構成透明薄膜基材1的材料,若為由具有透明性的樹脂所構成者,則無特別限定,但具體而言,係可列舉環烯烴聚合物(Cyclo Olefin Polymer,COP)、聚對苯二甲酸乙二酯(Polyethylene Terephthalate,PET) 等聚乙烯(polyethylene)系樹脂、聚醚碸(Polyethersulfone)等聚酯(polyester)系樹脂等。此外,以作為本發明中所使用之透明薄膜基材1的厚度而言,若可穩定地支撐上述表側電極5、背側電極6、表側端子7、背側端子8、連接端子部11等者,則無特別限定,但通常可設為50μm至100μm的範圍內。此外,所供給的形態係可為捲筒狀、葉片狀的任一者,按照加工法、加工機械選擇即可。
(表側電極、背側電極)
本發明中之表側電極5係形成於上述透明薄膜基材1之一方的表面上者,而背側電極6則為形成於上述透明薄膜基材1之另一方的表面上者。
以構成此種表側電極5及背側電極6的材料而言,若為具有所希望的導電性者則無特別限定,可為具有透明性的透明性材料,亦可為不具有透明性的非透明性材料,但較佳為透明性材料。作為本發明中的透明性材料而言,可使用一般使用於觸控感測器9者,例如可列舉銦錫氧化物(ITO)、氧化鋅、氧化銦、銻添加氧化錫、氟添加氧化錫、鋁添加氧化鋅、鉀添加氧化鋅、矽添加氧化鋅、或氧化鋅-氧化錫系、氧化銦-氧化錫系、氧化鋅-氧化銦-氧化鎂系等金屬氧化物、或此等金屬氧化物複合二種以上而成的材料。此外,作為非透明性材料而言,係可使用例如鋁、鉬、銀、鉻、銅等金屬及其合金等。
關於上述表側電極5及背側電極6的形成圖案或厚度等,係可設為與一般的觸控感測器相同。
(表側端子及背側端子)
本發明中的表側端子7係形成於透明薄膜基材1之形成有表側電極5的表面上,且連接於表側電極5者,而背側端子8則以俯視觀察時不與表側端子7重疊之方式形成於透明薄膜基材1之形成有背側電極6的表面上,並連接於背側電極6者,且直接形成於透明薄膜基材1的表面上(參照圖5)。
此外,表側端子7及背側端子8係可以連接端子部11為單位容易而且有效率地進行觸控感測器9與FPC的連接。另外,關於此種連接端子部11中所含之端子的數量等,係可依據使用於與FPC連接的加熱工具(heat tool)等來適當地設定。
此外,連接端子部11通常係由並聯狀地配置於透明薄膜基材1之相同表面上的複數個端子所構成者(參照圖1(b))。
圖2係本發明之實施形態之觸控感測器9之(a)俯視圖及(b)剖面圖。
另外,圖2(b)的剖面圖係對應於圖2(a)之俯視圖中之沿著A-A線之剖面的剖面圖。此外,圖5係本發明之實施形態之觸控感測器9的分解立體圖。
作為本發明中之鄰接的表側端子7及背側端子8的間隔而言,並無特別限定,可設為在觸控感測器9中一般的間隔者。
作為構成本發明中之表側端子7及背側端子8的材料而言,若為可獲得所希望的導電性者,則無特別限定,但可使用例如鋁、銀、銅或此等合金等。
關於上述表側端子7及背側端子8的端子寬度、厚度及俯視觀察時之形狀、或連接端子部11內中之端子間的間隔,係可設為與一般的觸控感測器相同。
(上部保護薄膜、下部保護薄膜)
本發明中之上部保護薄膜2及下部保護薄膜3若為具有絕緣性者,則無特別限定,但當為形成為覆蓋上述電極者時,較佳為具有透明性者。作為此種具有絕緣性及透明性的上部保護薄膜2及下部保護薄膜3而言,係可列舉例如丙烯(acrylic)樹脂或二氧化矽(SiO2
)等、氨甲酸乙酯(urethane)系樹脂、聚酯(polyester)系樹脂、聚苯乙烯(polystyrene)系樹脂、聚醯胺(polyamide)系樹脂、氯化聚烯烴(chlorinated polyolefine)樹脂、氯化乙烯(chlorinated ethylene)-乙酸乙烯酯(vinyl acetate)共聚物樹脂、環化橡膠、薰草哢-茚(coumarone indene)樹脂等熱可塑性樹脂。另外,亦可使用表面保護用黏接薄膜(PSA)。
(缺口部)
本發明中的缺口部4係以至少將與表側端子7和背側端子8相對向的區域作出缺口之方式形成。
缺口部4係具有:後部12;及側部19,係接續後部12的兩端直到開口端10。此缺口部4係形成為俯視觀察時從開口端10朝向後部12逐漸變寬的梯形形狀(參照圖3、圖5)。
藉由設為此種梯形形狀,可緩和外形沖裁之加壓時缺口部4之施加於透明薄膜基材1的應力,而不易於透明薄膜基材1的交界部位產生龜裂。缺口部4較佳為梯形形狀的外角15為30度以上60度以下的範圍內。若設為此種範圍內,則缺口部4之施加於透明薄膜基材1的應力更可被緩和,而更不易於透明薄膜基材1的交界部位產生龜裂。例如,可將梯形形狀的外角15設為45度(參照圖3、圖5)。
圖9係顯示本實施形態之變形例者。
作為在缺口部4中可緩和外形沖裁之加壓時缺口部4之施加於透明薄膜基材1的應力,以使透明薄膜基材1的交界部位不易產生龜裂的方法,若外角15為30度以上60度以下的範圍內,則亦可將側部19呈曲線狀地作出缺口,且可將外角15設為例如45度(參照圖9(a))。
此外,作為可緩和外形沖裁之加壓時缺口部4之施加於透明薄膜基材1的應力,以使透明薄膜基材1的交界部位不易產生龜裂的方法,若外角15為30度以上60度以下的範圍內,則亦可將側部19呈多角形狀地作出缺口,且可將外角15設為例如45度(參照圖9(b))。
此外,亦可配合透明薄膜基材1的性質等,將任一方的外角15設在30度以上60度以下的範圍內,將側部19呈曲線狀、多角形狀地作出缺口,且將任一方的外角15設為例如45度(參照圖9(c))。
此外,作為可緩和外形沖裁之加壓時缺口部4之施加於透明薄膜基材1的應力,以使透明薄膜基材1的交界部位不易產生龜裂的方法,若外角15為30度以上60度以下的範圍內,則亦可不將兩側的外角15設為相同的角度。
換言之,若外角15為30度以上60度以下的範圍內,則缺口部4的形狀可為任何形狀。
在一對保護薄膜之缺口部4的開口端10中,於從缺口部4的內側跨越至外側之兩端的區域,亦可於透明薄膜基材1上設置補強材14。藉由設置補強材14可更進一步緩和外形沖裁之加壓時缺口部4之施加於透明薄膜基材1的應力,以使透明薄膜基材1的交界部位更不易於產生龜裂(參照圖4(a)、(b)、圖7)。
圖4係本發明之實施形態之觸控感測器9的部分俯視圖,圖4(a)係未設有補強材14的部分俯視圖,圖4(b)係設有補強材14的部分俯視圖。
補強材14的材料係可設為與構成電極的材料相同者,亦可為不同的材料者,並無特別限定。
(觸控感測器)
本發明的觸控感測器9係至少具有透明薄膜基材1、表側電極5、表側端子7、背側電極6、背側端子8、上部保護薄膜2及下部保護薄膜3者,但亦可為視需要具有其他構成者。作為此種其他構成而言,係可列舉例如連接電極及端子的引繞配線16。
作為上述引繞配線16而言,可設為與使用於一般的觸控感測器9者相同。具體而言,可使用由與端子相同材料所構成者。此外,作為此種引繞配線16的線寬而言,可設為10μm至100μm左右。
茲說明本發明的第二態樣。
亦即,具備:第一積層體21,係具有:透明薄膜基材1;表側電極5,係形成於透明薄膜基材1之一方的表面上;表側端子7,係形成於透明薄膜基材1之形成有表側電極5的表面上,且連接於表側電極5;背側電極6,係形成於透明薄膜基材1之另一方的表面上;及背側端子8,係以連接於背側電極6而且俯視觀察時不與表側端子7重疊之方式形成於透明薄膜基材1之形成有背側電極6的表面上;且在透明薄膜基材1之一邊的內側具有連接端子部11;及第二積層體22,係具有:透明薄膜基材1;背側電極6,係形成於透明薄膜基材1之背側的表面上;及背側端子8,係以連接於背側電極6而且俯視觀察時不與第一積層體21之連接端子部11重疊之方式形成於透明薄膜基材1之形成有背側電極6的表面上;且於透明薄膜基材1之一邊的內側具有連接端子部11;在前述第一積層體21及第二積層體22中,於第一積層體21與第二積層體22之間設有接著層20,在第一積層體21中,係設有將與第二積層體22之連接端子部11相對向的區域作出缺口的缺口部4,在第二積層體22中,係設有將與第一積層體21之連接端子部11相對向之區域作出缺口的缺口部4,第一積層體21與第二積層體22係由上部保護薄膜2及下部保護薄膜3的一對薄膜所積層,在前述一對薄膜的雙方中,設有將與第一積層體21之連接端子部11及第二積層體22之連接端子部11相對向的區域作出缺口之缺口部4,於俯視觀察時,第一積層體21、第二積層體22、上部保護薄膜2、下部保護薄膜3的任一者均成為從缺口部4之開口端10朝向後部12逐漸變寬的梯形形狀(參照圖3、圖6)。
上述態樣,係將設有至少表側電極5、表側端子7、背側電極6、背側端子8、連接端子部11的透明薄膜基材1設為第一積層體21,且將設有至少背側電極6、背側端子8、連接端子部11的透明薄膜基材1設為第二積層體22,且為將第一積層體21與第二積層體22以上部保護薄膜2及下部保護薄膜3的一對薄膜積層而成者,其他則與先前所說明的發明相同。
上述態樣係具有遮蔽從例如使用有機物質於發光材料的發光二極體(Organic Light Emitting Display)(OLED)、或液晶顯示器(Liquid Crystal Display)(LCD)發射至觸控感測器9之電磁能(所謂的雜訊(noise))之優異的功效。
圖3係本發明之實施形態之觸控感測器9的(a)俯視圖及(b)剖面圖。
另外,圖3(b)的剖面圖係對應於圖3(a)之俯視圖中之沿著A-A線之剖面的剖面圖。
此外,圖6係本發明之實施形態之觸控感測器9的分解立體圖。
以俯視觀察時不與第一積層體21的連接端子部11重疊之方式設有第二積層體22的連接端子部11,且在與FPC接著部分對應的位置上,於第一積層體21中,於與第二積層體22之連接端子部11相對向的區域設有缺口部4,此外,在第二積層體22中,於與第一積層體21之連接端子部11相對向的區域設有缺口部4,再者,在上部保護薄膜2及下部保護薄膜3的一對薄膜的雙方中,於與第一積層體21的連接端子部11及第二積層體22的連接端子部11相對向的區域設有缺口部4。
此外,在第一積層體21與第二積層體22之間,係設有用以使第一積層體21與第二積層體22接著的接著層20。
本發明中的缺口部4係以至少將與表側端子7及背側端子8相對向的區域作出缺口之方式形成。缺口部4係具有:後部12;及側部19,係接續後部12的兩端直到開口端10。此缺口部4係形成為俯視觀察時從開口端10朝向後部12逐漸變寬的梯形形狀。
缺口部4較佳為梯形形狀的外角15為30度以上60度以下的範圍內。作為可緩和外形沖裁之加壓時缺口部4之施加於透明薄膜基材1的應力,以使透明薄膜基材1的交界部位不易於產生龜裂的方法,可將梯形形狀的外角15設為例如45度。
上述以外可設為與第一態樣相同。另外,亦可配合目的例如積層複數層的第一積層體21,此外,亦可在第一積層體21的下方積層複數層的第二積層體22。
[實施例1]
形成透明薄膜基材1的材料係環烯烴聚合物,厚度為100μm。
形成表側電極5及背側電極6的材料係銦錫氧化物(ITO)。
形成表側端子7及背側端子8的材料係銅。
形成上部保護薄膜2及下部保護薄膜3的材料係表面保護用黏接薄膜(PSA)。
將缺口部4形成為從開口端10朝向後部12逐漸變寬的梯形形狀,外角15係設為45度,以外形沖裁模17進行沖裁,獲得觸控感測器9。
以此方式獲得的觸控感測器9,未在透明薄膜基材1的交界部位產生龜裂。
此外,比較例1係未使缺口部4的側部19傾斜而作成矩形形狀,且將外角15設為90度,以外形沖裁模17進行沖裁,獲得觸控感測器9。以此方式獲得的觸控感測器9,在透明薄膜基材1的交界部位產生了龜裂。另外,在本比較例中,上述的角度以外係設為與實施例1相同。
此外,比較例2係形成為從缺口部4的開口端10朝向後部12逐漸變窄的錐形形狀,且外角15設為135度,以外形沖裁模17進行沖裁,獲得觸控感測器9。以此方式獲得的觸控感測器9係於透明薄膜基材1的交界部位產生了龜裂。另外,在本比較例中,上述的角度以外係設為與實施例1相同。
1:透明薄膜基材
2:上部保護薄膜
3:下部保護薄膜
4:缺口部
5:表側電極
6:背側電極
7:表側端子
8:背側端子
9:觸控感測器
10:開口端
11:連接端子部
12:後部
13:外周線
14:補強材
15:外角
16:引繞配線
17:外形沖裁模
18:緩衝材
19:側部
20:接著層
21:第一積層體
22:第二積層體
圖1係本發明之實施形態之觸控感測器的俯視圖。
圖2係本發明之實施形態之觸控感測器的俯視圖及剖面圖。
圖3係本發明之實施形態之觸控感測器的俯視圖及剖面圖。
圖4係本發明之實施形態之觸控感測器的部分俯視圖。
圖5係本發明之實施形態之觸控感測器的分解立體圖。
圖6係本發明之實施形態之觸控感測器的分解立體圖。
圖7係本發明之實施形態之觸控感測器之缺口部的俯視圖。
圖8係顯示觸控感測器之外形沖裁之步驟的剖面圖。
圖9係顯示本發明之實施形態之觸控感測器之缺口部之變形例的俯視圖。
4:缺口部
5:表側電極
6:背側電極
7:表側端子
8:背側端子
10:開口端
11:連接端子部
12:後部
14:補強材
16:引繞配線
19:側部
Claims (4)
- 一種觸控感測器,係具有: 透明薄膜基材; 表側電極,係形成於透明薄膜基材之一方的表面上; 表側端子,係形成於透明薄膜基材之形成有表側電極的表面上,且連接於表側電極; 背側電極,係形成於透明薄膜基材之另一方的表面上;及 背側端子,係以連接於背側電極而且俯視觀察時不與表側端子重疊之方式形成於透明薄膜基材之形成有背側電極的表面上; 透明薄膜基材係在透明薄膜基材之一邊的內側具有連接端子部,且透明薄膜基材係由上部保護薄膜及下部保護薄膜的一對薄膜所積層, 在前述一對薄膜的雙方中, 設有將與表側端子和背側端子相對向之區域作出缺口之缺口部, 於俯視觀察時,成為從缺口部之開口端朝向後部逐漸變寬的梯形形狀。
- 如請求項1所述之觸控感測器,係具備: 第一積層體,係具有:透明薄膜基材;表側電極,係形成於透明薄膜基材之一方的表面上;表側端子,係形成於透明薄膜基材之形成有表側電極的表面上,且連接於表側電極;背側電極,係形成於透明薄膜基材之另一方的表面上;及背側端子,係以連接於背側電極而且俯視觀察時不與表側端子重疊之方式形成於透明薄膜基材之形成有背側電極的表面上;且在透明薄膜基材之一邊的內側具有連接端子部;及 第二積層體,係具有:透明薄膜基材;背側電極,係形成於透明薄膜基材之背側的表面上;及背側端子,係以連接於背側電極而且俯視觀察時不與第一積層體之連接端子部重疊之方式形成於透明薄膜基材之形成有背側電極的表面上;且於透明薄膜基材之一邊的內側具有連接端子部; 在前述第一積層體及第二積層體中, 於第一積層體與第二積層體之間設有接著層, 在第一積層體中,係設有將與第二積層體之連接端子部相對向的區域作出缺口的缺口部, 在第二積層體中,係設有將與第一積層體之連接端子部相對向之區域作出缺口的缺口部, 第一積層體與第二積層體係由上部保護薄膜及下部保護薄膜的一對薄膜所積層, 在前述一對薄膜的雙方中, 設有將與第一積層體之連接端子部及第二積層體之連接端子部相對向的區域作出缺口之缺口部, 於俯視觀察時,第一積層體、第二積層體、上部保護薄膜、下部保護薄膜的任一者均成為從缺口部之開口端朝向後部逐漸變寬的梯形形狀。
- 如請求項1或請求項2所述之觸控感測器,其中,在缺口部中,與外周線相接之前述梯形形狀之上底的外角為30度以上60度以下。
- 如請求項1至請求項3中任一項所述之觸控感測器,其中,在從一對保護薄膜之缺口部之開口端中之缺口部的內側跨越至外側之兩端的區域中,於透明薄膜基材上設有補強層。
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- 2019-10-23 JP JP2019193040A patent/JP6915023B2/ja active Active
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2020
- 2020-09-08 US US17/771,352 patent/US11853517B2/en active Active
- 2020-09-08 KR KR1020217026511A patent/KR20220082779A/ko unknown
- 2020-09-08 EP EP20879372.9A patent/EP4026692B1/en active Active
- 2020-09-08 WO PCT/JP2020/034008 patent/WO2021079635A1/ja unknown
- 2020-09-08 CN CN202080023631.9A patent/CN113614682A/zh active Pending
- 2020-09-18 TW TW109132191A patent/TW202117520A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
EP4026692A4 (en) | 2022-11-16 |
JP6915023B2 (ja) | 2021-08-04 |
EP4026692A1 (en) | 2022-07-13 |
EP4026692B1 (en) | 2023-06-28 |
US11853517B2 (en) | 2023-12-26 |
JP2021068189A (ja) | 2021-04-30 |
US20220374101A1 (en) | 2022-11-24 |
KR20220082779A (ko) | 2022-06-17 |
WO2021079635A1 (ja) | 2021-04-29 |
CN113614682A (zh) | 2021-11-05 |
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