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TWI341980B - Force and location imaging touch pad and electronic device - Google Patents

Force and location imaging touch pad and electronic device Download PDF

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Publication number
TWI341980B
TWI341980B TW096110869A TW96110869A TWI341980B TW I341980 B TWI341980 B TW I341980B TW 096110869 A TW096110869 A TW 096110869A TW 96110869 A TW96110869 A TW 96110869A TW I341980 B TWI341980 B TW I341980B
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Taiwan
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force
image
layer
trackpad
conductive lines
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TW096110869A
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English (en)
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TW200805112A (en
Inventor
Steven P Hotelling
Brian Q Huppi
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Apple Inc
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0447—Position sensing using the local deformation of sensor cells
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04101—2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Description

九、發明說明： 【發明所屬之技術領域】 本务明通常有關電子系統輸入裝置’而更明確而言，有 關力影像及位置與力影像互電容系統。 【先前技術】 許多觸摸感測裝置可用於電腦系統、個人數位助理、行 動電話、遊戲系統、音樂系統等（即，電子系統）。或許， 夕年來田作鍵盤與位置指示器使用的電阻薄膜位置感測器 疋眾所周知。其他類型觸摸感測裝置包括電阻板、表面聲 波裝置、基於電阻、電容的觸摸感測器、應變計、電磁感 測器或壓力感測器、與光學感測器。因為使它們操作所需 的壓力本質上會在指狀物與感測器表面之間建立黏滯力 (st1Cu〇n)，所以壓力靈敏位置感測器在過去已對當作一指 向裝置(相對於-資料登錄或寫入裝置)使用已提供小的效 益。在大部分，此點滯力已使此裝置變成不流行。 由於可払式裝置與附帶的成長流行需要將全部輸入功能 整合在早一形狀因數，所以觸控板現在是最流行且廣泛使 用輸入裝置類型之_。操作上，觸控板可歸類為"電阻"或 ”電容。在電阻觸控板十，觸控板係使用-薄金屬導電層 與電阻層加以塗布。當觸摸觸控板時，導電層會經由電阻 層接觸而&成電阻變化（典型係如電流變化而測量），其係 用來識別觸摸事件是在觸控板何處發生。在電容觸控板 中，H導電線路是在第一方向運行，並由來自在第 二直於該第—方向）運行的—第二組導電線路 H9533.doc 1341980 的一介電絕緣體所隔離。藉由重疊導電線路形成的格柵可 建立儲存電荷的電容器陣列。當一物體接近或接觸該觸控 板時’在此位置的電容器的電容會改變。此變化可用來識 別觸摸事件的位置。 、 將觸拴板田作輸入裝置使用的-缺點在於他們通常不提 .供I力或力資訊。力資訊可用來獲得使用者如何操作裝置 的更健全指示。即，力資訊可作為另一輸入大小的使用， φ 用以將°p々與控制信號提供給一相關的電子裝置。因此， 提i'力測置系統作為一部分觸控板輸入裝置是有好處 【發明内容】 在-具體實施例中’本發明可提供一力靈敏觸控板，其 包括藉由—彈簧薄❹開的第—與第二組導電線路。當施 力力日夺彈I薄膜會變形，j^使兩、组線路移動更靠在一 起。結果的互電容變化可用來產生一作用力的位置（相對 =觸控板的表面）與力量或強纟的影像表示。纟另_具體 貫施例中本發明提供__組合的位置與力靈敏觸控板，包 括兩組驅動線路、一組感測線路、與一彈簧薄膜。操作 上’ s玄等驅動線路之一係與感測線路組搭配使用以產生 -或多個物體觸摸觸控板的影像。第二組驅動線路係斑感 測線路與彈f薄膜搭配使用，以產生作用力的力量或強 度、及相對於觸控板表面位置的影像。根據本發明，力觸 控板及位置與力觸控板可合併在各種電子裝置，有助於提 南使用者操縱陣列的辨識。 119533.doc 在另具肢只她例中，描述的力感測架構係用來 顯示器：以侦測使用者將力施加到一顯示器(例如，—液 日日顯示益單元）的對旦 4Θ 丄 一 „ )數里。根據本發明的此具體實施例的顯 單兀可用於有助於提高使用者輸入陣列的辨識。 【實施方式】 下面。兒月係允許熟諳此技術者可如文後的申請專利範圍 裝作及使用本發明’並在y面討論的特別範例本文中提供 ⑺於個人電腦系統的觸控板輸入裝置），其變化對於熟諸 此技術者是容易明白。目此，關於此的文後中請專利範圍 並未又到揭不具體實施例的限制，而是符合最寬廣的範 圍，且與在此揭示的原理與特徵相一致。經由範例，除了 應用在例如電腦工作站、行動電話、手持式數位助理、與 各種：器與系統(機械、電氣與電子)的數位控制面板的個 電®系統之外’根據本發明的力影像系統同樣可應用在 電子裝置。 參考圖1 ’根據本發明描述的力偵測器的一般觀念可在 觸I板裝置1 GG中執行。如前述，該力^貞測器i⑼包含裝飾 層1感測層11 〇(包括導電路徑11 5與電連接器1 2〇)、介 電彈簧層125(包括空間偏移凸起結構13〇)、驅動層135(包 括導電路徑140與電連接器145)與基底或支撐物15()(熟諸此 技術者可明白連接器120和145分別在層11〇和135上提供每 一導電線路的唯一連接 裝飾層1 05係扮演保護系統的其他元件避免周圍情況（例 如灰塵與溼氣），而且，此外，提供使用者與偵測器i 互 H9533.doc 動的表面。在感測層110上的導電路徑丨丨5係配置重疊在驅 動層135上的導電路徑14〇，藉此形成電容器，其導電板 (導電路徑11 5和140)係藉由感測層基板11〇、介電彈簧層 125與凸起結構130分開。介電彈簧層125與凸起結構no係 共同建立一機構，其中當—力施加於該裝飾層1 05時，感 測層11〇的導電路徑115會更靠近驅動層135的導電路徑 M0。可辨識分離的變化會造成在感測層與驅動層導電路 徑（Π 5和]40)之間的互電容改變（增加），其中變化係表示 施加在裝飾層105的力之數量、強度或力量。基底或支撐 層1 5 0提供用於力偵測器1 〇〇的結構完整性。 >考圖2A力痛測器1〇〇的斷面圖是在其無負載或I，無力” 狀態中顯示。在此狀態中，在感測層11〇與驅動層135導電 路徑（115和14G)之間的互電容會造成—穩m態或靜電容 信號（當經由圖1的連接器120和145測量）。參考圖2B，當 外力200施加於裝飾層1〇5、介電彈簧層125會變形，使得 感測層H0會移到更靠近驅動層135。此接著會在感測與驅 動層之間造成互電容變化（增加），即一變化係大約單調地 與兩者間的距離有關，且因此係與作用力2〇〇的強度或力 置有關。更明確而言’在操作期間，線路140(在驅動層 1 3 5上）係每_人電激勵一次，且可測量與激勵線路與線路 之母者（在感測層11 〇上）有關的互電容。如此，可獲 仔％加於裝飾層丨05的力200的力量或強度的影像。如前 述’此互電容變化可透過適當電路加以決定。 多考圖其係顯示利用力偵測器觸控板1 〇〇的力影像系 119533.doc 1341980 統3〇0之方塊圖。如所述，力影像系統300包含力偵測器 ⑽’。其係透過連.接器m(用於感測信號⑽)和⑷（用於驅 動信號315)耗合至觸控板控制器3〇5。觸控板控制器3〇5依 序週期性將信號傳送給主機處理器似，其代表施加於债 測器1〇0的力之（空間）分佈。主機處理器320可解譯力資 :凡’以執行指定的命令與控制動作(例如’選擇在顯示單 元3 2 5上顯示的物件）。 μ即參考圖4，在操作期間，在觸控板控制器3〇5中的駆 動電路係透過驅動信號3 1 5及連接器145依序傳送（”驅 動）一電流給複數個驅動層導電路徑丨40(參考圖1 )之每一 者。因為電容耦合，所以一些電流係運送到複數個感測層 導電路徑115之每一者（參考圖丨）。感測電路4〇5(例如，電 荷放大器）偵測來自感測信號310(經由連接器丨2〇)的類比信 號，並將他們傳送給分析電路4 1 〇。分析電路4丨〇的一功能 係將偵測的類比電容值轉換成數位形式（例如，透過類比 至數位轉換器）。分析電路的另一功能係佇列複數個數位 化電容值’用以傳送給主機處理器32〇(參考圖3)。分析電 路的另一功能係控制驅動電路400，及可能動態調整感測 電路的操作405(例如，例如藉由改變偵測”電容變化”的臨 界值）。適合使用在本發明控制器305的一具體實施例係由
Steve Hotelling、Christoph Krah 與 Brian Huppi 在 2006 年 3 月15日所申請的美國專利申請案序列號1〇/999,999名稱 "Multipoint Touch Screen Controller"中揭示，其在此係以 引用方式併入本文。 119533.doc 1341980 在另-具體實施例中，根據本發明的—力偵測器係與一 電容位置偵測器組合，以建立提供位置與力偵測的—觸控 板裝置。參考圖5，組合的位置與力偵測器5〇〇包含裝飾層 505、電路板或基板51 〇(包括在一第—表面上的第—複數 個導電驅動路徑515與在第二表面上的複數個感測路經 520)、介電彈簧層525(包括交互、或空間偏移凸起結構 5 30)、驅動層53 5(包括第二複數個導電驅動路徑）與基底或 支撐物MO。在一具體實施例中，導電驅動路徑5丨5和53$ 係分別放置在基板510與支撐物540上以形成列，且感測導 電路徑係放置在基板5 10上以形成行。因此，在操作期 間，第一驅動路徑515會於第一時間週期中驅動（每次_ 次），且於此相同時間中，感測路徑52〇會被詢問，以獲得 代表一或多個裝飾層觸摸位置的—影像。同樣地，第二驅 動路徑535會於第二時間週期中驅動（每次一次），且於此相 同時間中，感測路徑520會被再次詢問，以獲得代表此時 施加於裝飾層505的力之力量或強度的一影像。基於互電 谷原理而用於觸模 <貞測的電腦輸入裝置（例如觸控板）操作
是在由 Steve Hotelling、Joshua A· Strickon 與 Brian Q
Huppi發表的美國專利申請案序列號10/84〇,862名稱 "Multipoint Touchscreen”中描述，其在此係以引用方式併 入本文。 參考圖6，根據本發明的另一具體實施例，位置與力觸 控板600係以斷面顯示。在此具體實施例中，裝飾層605包 含一聚醋或聚碳酸@旨薄膜。層6 1 0包含一以丙稀酸醋為主 119533.doc -11 - 1341980 的壓力靈敏或紫外線光固化型黏著劑。層6i5的功能如同 雙面電路板，其具有在―"上"表面上朝一第一方向（即，朝 向該裝飾層605)的第一複數個導電驅動線路62〇、與在一 "下”表面上朝一第二方向的複數個導電感測線路625。在 -具體實施射，電路基板層615包含例如㈣苯二甲酸 乙二醋（"PET”）的一低溫塑膠或熱塑性樹脂。在此具體 實施例中，驅動線路620與感測線路625包含印刷銀墨。 在另一具體實施例中，電路基板層615包含一彈性電路 板、或玻璃纖維或玻璃，且驅動與感測線路（62〇和625)包 含氧化銦錫（"ITO")或銅。在一具體實施例+，層63〇包含 一分層組合’其係由黏性PET黏著劑（adhesive_PET_ adhesive)所組成，其中黏著劑組件係如上述的層61〇。層 635、640和645包含改變厚度的PET。如圖所示，層64〇的 底表面係附著第二複數個導電驅動線路65〇，且其朝向 係實質上與第—導電驅動線路62〇相同的方位。凸起與空 間偏移支撐結構655與層660亦包含一分層組合，且由黏性 PET黏著劑所組成（類似層63〇，參考上述）。層6〇5至66〇係 附著至基底或加強板665，並由其所支撐。例如，在一可 攜式或筆記型電腦系統中，基底665可從例如由—部分電 腦系統框架的金屬沖壓的剛性材料形成。同樣地，基底 665可為一個人數位助理或行動電話的内框。表識別用 於觸控板600之一具體實施例的層6〇〇至660之每一者的厚 度。 I19533.doc 12 1341980 表1 ·說明觸控板6 0 〇的尺寸
Μ。壓敏黏著劑（"PSA")或紫外線（，，υν，，） 光固化黏著劑 0.05
635 分層 PSA-PET-PET PET 0.03±0.01 640
PET 0-075 ± 0.02 0.1 ± 0.02 645
PET 650 銀墨、銅、氧化銦錫 0.125 ± 0.02 0.006 0.025 ± 0.01 0.1 ± 0.02 0.025 土 0.01
層：PSA
655 PET
PSA 作用的觸控板表面：271 mm x 69 mm 驅動線路（620和65 0)數量：13 # 感測線路（625)數量：54 _________像素分離：5 mm___ • 操作上，由於透過在驅動線路620與感測線路625之間的 互電容而在一或多個位置上觸摸的裝飾層6〇5，所以觸控 • 板600可測量電容變化（例如，減少）。在如上述的方式中， 當感測線路625與驅動線路650透過在他們間的互電容測息 變化（例如，增加）而更靠近時，觸控板6〇〇亦可測量施加於 裝飾層的力。在此具體實施例中，凸起結構655係 '弋用在 119533.doc 13 1341980 驅動線路（650)的第二層兩端，以提供額外的運動偵測能 力。
在測量操作期間’驅動線路62〇的每一者依序激勵；同 時’測量在驅動線路620與感測線路625之間的互電容變 化。只要驅動線路620的每一者已激勵（且經由感測線路 625測量的對應電容變化），驅動線路65〇的每一者會依序 驅動，且感測線路625可用來決定與力（即，由於作用力， 在線路625與650之間的互電容變化）有關的互電容變化。 依此方式，可獲得，，觸摸"輸入與"力"輸入裝飾層6〇5的一影 像。 熟諳此技術者認知不需要上述的，，掃描"序列。例如，驅 動線路620和650能夠以重疊方式激勵，使得在驅動線路 620中的一第一線路可激勵，依序在驅動線路65〇中的一第 一線路650、在驅動線路62〇中的一第二線路62〇等。或
者，在驅動線路620中的一群線路可先激勵，依序係在驅 動線路650申的一群線路等。 在-具體實施例中’驅動線路62G(與觸摸位置測量操作 有關）係使用來自，驅動線路65〇(與力測量操作有關）與感測 線路6 2 5 (在位置與力測量操作期間所使用）的—不同幾何。 參考圖7,可看出驅動線路㈣利用導電線路，其係使用内 部浮動板結構700;此外，係實際大於在感測線路仍鱼驅 動線路65〇(在描述的具體實施例中，兩者具有相同實際大 小/結構)中使用的導電線路。已發現到此組態可提供增加 的靈敏度，用於決定一或多個物體（例如，一觸控筆）是在 U9533.doc 14 1341980 何處觸摸，或造成更靠近裝飾表面605。 參考圖8A，在根據本發明（觸控板8〇〇)的一組合觸摸與 力靈敏觸控板的另一具體實施例中，凸起結構6 5 5可藉由 滾珠或聚合物滚珠8 0 5 (亦稱為橡膠或彈性體點）取代。在此 具體實施例中’滾珠805係以類似凸起結構65 5的方式操作 (參考圖6)。如圖所示’滾珠805係放置在一薄黏性層81〇， 並按照尺寸製成’以當無作用力存在時，可將層630和640 保持在指定距離。滾珠805的一說明設計與間隔是在圖 8Β(俯視圖）和8C(斷面圖）顯示。表2係識別不同於先前說明 觸控板6 0 0的觸控板8 0 〇之每一組件的大約尺寸。 層 材料 厚度（mm) 805 橡膠或聚合物（例如，彈性體） 810 壓敏黏著劑（"PSA")或紫外線 ("UV")光固化黏著劑 0.015 a 行滾珠分離 1.0 b 列滾珠分離 5.0 c 滾珠偏移 2.5 + 0.15 d ____ 0.15 作用的觸控板表面：271 mm X 69 mm 驅動線路（620和650)數量：13 感測線路（625)數量：54 像素分離：5 參考圖9A，在仍然根據本發明（觸控板9〇〇)的一組合觸 摸與力靈敏觸控板的另一具體實施例中，係使用變形滾珠 】19533.doc •15· 或彈性體點905的單一層。在觸控板9〇〇中，薄黏性層9 1 〇 ir、將滚珠以;f幾械輕合至觸控板結構的其餘部》，並將結構 本身耦合至基底665。變形滾珠905的一說明設計與間隔係 在圖9B(俯視圖）和9C(斷面圖）顯示。表3係識別不同於先前 說明觸控板600的觸控板9〇〇的每一組元件的大約尺寸。 表3 :說明觸控板9〇〇的尺寸
C d 列滾珠分離 滾珠偏移 0.5 0.5 0.15 滾珠寬度 e__滾珠高度 作用的觸控板表面：271 mm X 69 mm 驅動線路（620和650)數量：13 感測線路（625)數量：54 一__像素分離 ：5 mm_ 參考圖10A，在根據本發明（觸控板1000)的一組合觸摸 與力靈敏觸控板的另一具體實施例中，彈簧薄膜1〇〇5可取 代凸起結構（例如530和655)或變形滾珠（例如805和905)使 用。在觸控板1000中，薄黏性層1010係將PET彈簧1〇〇5機 械耦合至層635和640、以及將層645機械耦合至基底665。 參考圖10B，在一具體實施例中，彈簧薄膜包含PET的單 H9533.doc -16- 波紋板’其上升比率（即a/b)典型係在大約的 範圍。由於例如觸控板表面的實際大小、指定給完全偏移 的重量（例如20Q克）' 及對使用者呈現想要”堅硬”感覺的各 =因素，所以熟諸此技術者可認知在任何給定具體實施例 中所使用的精確值可改變1锡識別不同於先前說明觸 控板6〇〇的觸控板丨〇〇〇的每一組件的大約尺寸。 表4 :說明觸控板丨〇〇〇的尺寸
0.025 1〇：1 -> 50: 1〇1〇歷敏黏著劑（"PSA”）或紫外線 Γυν")光固化黏菩劑 a/b 彈簧上升比率 作用的觸控板表面：271 mm X 69 mm 驅動線路（620和650)數量：13 感測線路（625)數量·· 54
參考圖11A，在另一具體實施例中，波紋彈簧薄膜丨〇〇5 可由波紋彈簧薄膜11 〇5取代。在此實施中，彈簧薄膜丨丨〇5 係單一薄板變形材料（例如，PE丁），且其具有透過例如熱 或真空形成技術而在其上面形成的波紋。圖丨丨B和丨】c係顯 不兩可能波紋配置的俯視圖。波紋薄膜丨丨〇5的兩說明設計 (俯視圖）係在圖11 B和11 C顯示。如在圖11 A至11 C的使用， ”符號係代表一凸起區域，且”_，，符號係代表一凹處區 域。表5係識別在圖1丨a中指定的大約尺寸”，至,ie”。 W9533.doc 1341980
路切割或相交的方式通常取決於所使用的坐標系統。在笛 卡爾坐標系統中，例如，感測線路係與驅動線路正交，藉 此形成具有不同的X和y坐標節點。或者，在極坐標系統 中，感測線路可為同心圓，而驅動線路可為輻射延伸線 (或者’反之亦然）β 此外，在圖〗和2的具體實施例中，驅動層135與驅動線 參 路Μ〇(因此’連接器145)可合併在彈簧薄膜125之内或在彈 簧薄膜125之上。即，驅動線路14〇可安置在彈性薄膜 的表面或在其表面上蝕刻。同樣地，驅動線路535可合併 成為一部分彈性薄膜525(參考圖5)。 熟諳此技術者亦認知根據圖8和9的滾珠（參考圖8和9)亦 可取代凸起結構130、530和655的使用（參考圖i、2Α、 2Β、5和6)。同樣地，彈簧機構1005(參考圖1〇)和u〇5(參 考圖11)可取代滾珠8〇5(參考圖8)、變形滾珠8〇5和來 考圖8和9)或凸起結構130、53〇和655(參考圖】、5和的使 H9533.doc •18- >考圖1 2 A ’在另—具體實施例中，根據本發明的力價 ⑻可口併在-顯不器單元而不是—觸控板。例 >，根據本 《月系、..先1200包括合併力^貞測能力的處王里器】2〇5、標準 輸入輸出（I/O )裝置丨21〇(例如’鍵盤、滑鼠、觸控板、 搖杯” D。a輸入）與顯不器】2〗5。參考圖1 ，在此具體實 %例中顯不器12〗5包括顯示元件122〇、顯示元件電子器 件1225、力元件1230與力電子器件1235。依此方式，使用 者1240可透過作用力元件1230觀看顯示器1200的顯示器元 件〖22〇°藉由範例，顯示器元件1220與電子器件1225可包 含一傳統液晶顯示（"LCD")顯示器。力元件123〇可包含只 有力感測器（例如，類似圖〗和2的具體實施例）或一力與位 置感測器（例如，類似圖5至11的具體實施例）。力電子器件 1235可包含如圖4所述的處理電路。即，力電子器件 可驅動及感測如根攄本發明觸控板所述的互電容信號。 熟諸此技術者可認知當應用在顯示器1215時，描述的力 偵測技術可使用例如由11[〇(即’並非不透明的銅）提供的 透明或實質上透明的驅動與感測線路。同樣地，在用來偵 測一作用力（參考上述）的第一層線路（例如，驅動線路）與 第二層線路（例如，感測線路）之間的間隙應該是透明或實 質上透明。例如，可壓縮透明間隔物可用來執行偏移的凸 起結構130、支撐結構655、變形滾珠8〇5、9〇5或彈簧薄膜 1005 、 1105 。 【圖式簡單說明】 M9533.doc •19· 1341980 具體貫施例以分解透視圖顯示 圖1係根據本發明的一 力偵測器。 一無負載（A)與負载（b) 圖2A和2B係根據圖！以斷面颟示 力偵測器。 具體實施例以方塊圖形式顯元 圖3係根據本發明的一具體實 力偵測系統。 示力1ί貞測系統的更詳細 圖4係根據圖3以方塊圖形式顯 圖5係根據本發明的一具體實施例以斷面顯示—位置與 力偵測裝置。 〃 圖ό係根據本發明的另一具體實施例以斷面顯示—位置 與力偵測裝置。 圖7係根據圖6顯示驅動與感測線路的分解圖。 圖8Α至8C係仍然根據本發明的另一具體實施例顯示— 位置與力偵測裝置的各種圖。 Φ 圖9八至9C係仍然根據本發明的另一具體實施例顯示— 位置與力偵測裝置的各種圖。 • 圖1〇A和1〇B係根據本發明的另一具體實施例以斷面顯 ’ 示一位置與力偵測裝置。 圖〗1A至11 c係根據本發明的另一具體實施例顯示—彈 簧薄膜的各種圖。 圖12A和〗2β係根據本發明的一具體實施例以 々孤圖形 式顯示一力偵測顯示系統。 【主要元件符號說明】 119533.doc •20- 1341980 100 觸控板裝置/力偵測器 105 裝飾層 110 感測層基板 115 導電路徑 120 電連接器 125 介電彈簧層/彈簧薄膜/彈性薄膜 130 凸起結構 135 驅動層 140 導電路徑 145 電連接器 150 支撐物/支撐層 200 外力 300 力影像系統 305 觸控板控制器 310 感測信號 315 驅動信號 320 主機處理器 325 顯示單元 400 驅動電路 405 感測電路 410 分析電路 500 作用力偵測器 505 裝飾層 510 電路板或基板 119533.doc -21 - 1341980 515 導電驅動路徑 520 感測路徑 525 介電彈簧層/彈性薄膜 530 凸起結構 535 驅動層/導電驅動路徑/驅動線路 540 支撐物 600 作用力觸控板 605 裝飾層/裝飾表面 610 層 615 電路基板層 620 導電驅動線路 625 感測線路 630 層 635 層 640 層 645 層 650 導電驅動線路 655 支撐結構/凸起結構 660 層 665 基底或加強版 700 内部浮置板結構 800 觸控板 805 變形滾珠 810 黏性層 H9533.doc -22. 1341980 900 觸 905 變 910 黏 1000 觸 1005 彈 1010 黏 1100 彈 1105 彈 1200 系 1205 處 1210 輸 1215 顯 1220 顯 1225 顯 1230 力 1235 力 1240 使
控板 形滾珠或彈性體點 性層 控板 簧薄膜 性層 簧薄膜 簧薄膜 統 理器 入-輸出（'’I/O”）裝置 ——口口 不斋 示元件 示元件電子器件 元件 電子器件 用者 119533.doc -23 -

Claims (1)

1341980 第096U0869號專利申請案 中文申凊專利範圍替換本(99年12月） 厂 _ 十、_請專利範園： f年月叫日修正本 】.一種力與位置影像觸控板，其包含： 一第—層，其包括一第一複數個導電線路與一第二複 數個導電線路，該第一複數個導電線路係朝一第一方 向，該第二複數個導電線路係朝一第二方向； 一第二層，其包括一第三複數個導電線路，該第三複 數個導電線路係實質上朝該第一方向； 一基底層； 第’邊形薄膜，其係並列在該等第一與第二層之 間；及 μ — 一第二變形薄膜，其係並列在該第二層與該基底層之 g —或多個物體靠近該第一層時，該等第—與第 :複數個導電線路係調適成用以建立—卜電容影像， -中Θ第t谷影像表示該—或多個物體係位於該第一 層的相對位置； :、中田力施加於該第一層時，該等第二與第三複數 個導電線路係'調適成用以建立—第二電容影像，其中該 第，電容影像表示該被施加之力的一強度。 2_如°'求項1之力與位置影像觸控板，其中該第一層包含 —彈性電路板。 月长項1之力與位置影像觸控板其中該第一層包含 熱塑性樹脂的-或多個層。 項1之力與位置影像觸控板’其中該第-複數個 119533-99l215.doc 導電線路與該第二複數個導電線路係實質上正交。 5. 如請求項〗之力與位置影像觸控板，其中該第二層包含 一彈性電路板。 s 6. 如吻求項1之力與位置影像觸控板，其中該第二層包含 熱塑性樹脂的一或多個層。 7. 如請求項1之力與位置影像觸控板，其中該第一變形薄 膜包含一第一複數個凸起結構，該第二變形薄膜包含— 第二複數個凸起結構，且該等第一與第二凸起結構係實 質上彼此空間偏移。 8. 如請求項7之力與位置影像觸控板，其中該等第一與第 一複數個凸起結構包含熱塑性樹脂。 如π求項1之力與位置影像觸控板，其中該第一變形薄 膜包含一第一複數個變形滾珠，該第二變形薄膜包含一 第二複數個變形滾珠，且該等第—與第二複數個變形滾 珠係實質上彼此空間偏移。 " 10.如請求項9之力與位置影像觸控板，其中該等變形滾珠 包含彈性體滾珠。 U .如請求項i之力與位置影像觸控板，其中該等第—與第 一複數個凸起結構的每一者包含一或多個熱塑性彈簧。 12.如請求項丨丨之力與位置影像觸控板，其中該等熱塑性彈 脊包含聚對笨二曱酸乙二酯。 13·如請求項丨之力與位置影像觸控板，其進一步包含—互 電容測量電路，其係電耦合至該等第一、第二與第三複 數個導電線路。 119533-991215.doc 4‘種力與位置影像觸控板，其包含： 一第—表面，其具有朝一第一方向的一第一複數個導 電線路； 第二表面’其具有朝一第二方向的一第二複數個導 '線路’違專第一與第二表面係彼此並列’且彼此電絕 緣； 、“ 一第三表面’其具有實質上朝該第一方向的一 數個導電線路；及 一變形薄膜係在該等第二與第三層之間； 其中當一或多個物體靠近該第一表面時，該等第一與 第一複數導電線路係調適成用以建立一第一電容影像， 中3亥第一電容影像表示一或多個物體係位於該第一表 面的相對位置； 其中當一力施加於該第一表面時，該等第二與第三複 數個導電線路係調適成用以建立一第二電容影像，其中 Λ第一電谷景》像表示該被施加之力的—強度。 ’如明求項14之力與位置影像觸控板，其中該等第一與第 二表面係一共用層的表面。 16.如请求項15之力與位置影像觸控板，其t該共用層包含 —彈性電路板。 控板’其中該共用層包含 17.如請求項丨5之力與位置影像觸 熱塑性樹脂的一或多個層。 18. 如請求項14之力與位置影像觸控板， 導電線路與該第二複數個導電線路係 其中該第一複數個 實質上正交。 H9533-99l215.doc 1341980 其中邊第二表面包 其中該變形薄祺包 19.如請求項14之力與位置影像觸控板 含熱塑性樹脂。 20‘如請求項14之力與位置影像觸控板 含： 一實質上平坦薄膜，豆呈右鈿 — 、”有朝向έ亥第一後數個導電線 路的一第一表面，及朝向贫笛一在 别Π 4第二復數個導電線路的一第 二表面； -第-複數個凸起結構，其軸合至該實質上平垣薄 膜的該第一表面；及 ' 一第一複數個凸起結構，其係耦合至該實質上平垣薄 膜的該第二表面，其中該第二複數個凸起結構係實質上 從該第一複數個凸起結構的空間偏移。 21.如請求項Μ之力與位置影像觸控板，其中該變形薄骐包 含： ' 一實質上平坦薄膜；及 複數個變形滾珠，其係附著至該實質上平坦薄膜的一 表面’其中當-力施加於該第一表面時，該力是朝向該 第二表面的，該等變形滾珠係調適成用以壓縮。 22.如請求項14之力與位置影像觸控板，其中該變形薄膜包 含一波紋變形薄膜。 23·如請求項21之力與位置影像觸控板，其中該變形滾珠包 含一聚合物。 24.如請求項14之力與位置影像觸控板，其_該變形薄膜包 含一或多個熱塑性彈赞。 I19533-99l215.doc 1341980 月求項24之力與位置影像觸控板其中該熱塑性彈簧 包含聚對笨二曱酸乙二酯。 月求項14之力與^立置影像觸控板其進一步包含一互 電谷測I電路’其係電轉合至該等第—、第二、與第三 複數個導電線路。 〃 27. —種電子裝置，其包含： 一處理單元； 一顯示器單元，其係操作上耦合至該處理單元； -互電容測量電路’其係操作上耦合至該處理單元；及 ^求項1及14中之—項之一力與位置影像觸控板， 且操作上係耦合至該互電容測量電路。 28. 如請求項27之電子裝置，立中 Κ 具中s亥電子裝置包含一電腦系 統。 29·如请求項27之電子裝置，其中該電子裝置包含一行動電 話。 3〇·如5月求項27之電子裝置，其中該電子裝置包含一個人數 位助理。 I19533-991215.doc
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