200846997 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種感測結構以及觸控面板，尤其是指 一種於單層導電層上形成複數個平面電容之一種單層觸控 感測結構以及使用該結構之觸控顯示面板。 【先前技術】 觸控面板起源於1970年代美國軍方為軍事用途而發 展，1980年代技術移轉至民間使用，進而發展為各式用途。 傳統電子計算裝置（例如··電腦）的輸入方式乃以鍵盤或滑 鼠等週邊設備來作為輸入介面，然而這些週邊輸入裝置的 體積過大不易攜帶，容易造成電子產品薄型化的一大阻 礙。因為薄型化電子裝置的需求，觸控面板在可攜式電子 產品也逐漸受到消費者的青睞而嶄露頭角。另外，觸控面 板除了應用在個人可攜式資訊產品之外，應用領域也逐項 擴向資訊家電、公共資訊、通訊設備、辦公室自動化設備、 資訊收集設備、及工業設備等領域，因此觸控面板之研究 發展，近年來也逐漸成為電子產業發展的重心。 一般說來，觸控面板的原理大概可以分為電阻式以及 電容式兩種。現今大多數觸控螢幕都屬於電阻式，在飽和 多元酯（polyethylene terephthalate，PET)這類兩個透明 薄層間，置入由氧化銦錫（IT0)製造的透明導電電路板，彼 此以小型墊片（spacer)隔開，固定在液晶顯示器（liquid crystal display, LCD)螢幕或其他繪圖裝置的上方，當以 手指按壓形成接觸點時，就會紀錄觸碰的位置。這種技術 6 200846997 雖然簡單，不過卻仍有下列缺點：第一、電阻式觸控面板 具有兩層結構，因此還是具有一定的厚度。第二、該技術 也容易造成螢幕磨損，若加上保護螢幕或降低反射的塗 料，則會造成不良透光。第三、手影效應（hand-shadow effect)也容使感测器判斷錯誤。 為了解決電阻式觸控面板的缺點，電容式觸控面板的 技術研發，也就逐漸嶄露頭角。電容式觸控面板一般是在 透明玻璃表面鍍上一層氧化銦錫薄膜及保護膜。然後人與 觸控面板沒有接觸時，各種電極是同電位的，觸控面板沒 有上沒有電流通過。當與觸控面板接觸時，人體内的靜電 流入地面而產生微弱電流通過。檢測電極依電流值變化， 可以算出接觸的位置。例如；在如美國專利 US. Pat, No. 6, 961，049所揭露的一種電容式感測器結構 1，如圖一所示。其主要是在非導電基板10上形成感測線 路11 ’該感測線路11係由透明的氧化姻錫或者是其他導 電材料所構成。然後在感測線路11上在形成一層黏著層 12，最後在該黏著層上再覆蓋一層非導電基板13。該感測 線路11可以藉由電路連接模組14所提供之電子訊號產生 電場。 綜合上述，為了解決習用電阻式觸控面板的問題以及 減少觸控面板之厚度，因此亟需一種單層觸控感測結構以 及使用該結構之觸控顯示面板來解決習用電阻式觸控面板 所產生之問題。 【發明内容】 7 200846997 本發明之目的係為扭 直接在導電層材料上形成複===控感測結構，其係 之目的。 ^化感測結構設相及減造成本 本發明之另—目的係為提供 利用具有具有複數個 種觸控顯不面板，其係 合’以形成一觸控 电°之¥電層與顯示單元相互結 以增加利用領域:目、的。反’達到降低觸控顯示面板厚度 結構，包括的提供一種單層觸控感測 應區塊上具有複數“ 感應區塊，該感 個電極，任兩相鄰間之電極可“成複數 測結構，包括有發明更提供一種單層觸控感 感應區塊上具有二冓 個電：，任兩相鄰間之電極可行成一平面電容結成一 板，包1達=目：;本發明更提供-種觸控顯示面 區塊上具η: I塞糸具有至少一感應區塊，該感應 電極，^’以將該感應區塊分割成複數個 ^ 仕兩相鄰間之電極可 τ ^ ^ ^^4- Λ 了仃成一平面電容結構；一電訊 係，該導電層上以與該複數個電“電 根據兮I制早70，其係賴1赠路模_偶接，以 以感應區域上之電容變化，而決定觸控位置— 頌不早7L，其係設置於該導電層之下方。 8 200846997 【實施方式】 為使貴審查委員能對本發明之特徵、目的及功能有 更進一步的認知與暸解，下文特將本發明之裝置的相關細 部結構以及設計的理念原由進行說明，以使得審查委員可 以了解本發明之特點，詳細說明陳述如下： 請參閱圖二A所示，該圖係為本發明之單層觸控感測 結構實施例示意圖。該單層觸控感測結構2，包括有一導 電層21，其係具有複數個感應區塊22，該感應區塊22内 更具有複數段的溝槽’以將該感應區塊分割成複數個電 極，任兩相鄰間之電極可行成一平面電容結構。本發明之 單層觸控感測結構2特徵在於只利用一層導電層21即可完 成所有的感測電極的配置。其中該感應區塊22係透過蝕刻 該導電層21所形成。該導電層21可為一導電高分子材料 或者是透明導電氧化物。其中該高分導電高分子可為聚乙 基雙醚嗟吩（poly(3, 4-e1:hylenedioxythiophene)，PED0T); 該透明導電氧化物（transparent conductive oxides, TCO) 係可為氧化銦錫（indium tin oxide, ITO)、氧化銻錫 (antinomy tin oxide，ΑΤΟ)或者是氧化辞（zinc oxide，The invention relates to a sensing structure and a touch panel, in particular to a single-layer touch sensing structure for forming a plurality of planar capacitors on a single conductive layer. And a touch display panel using the structure. [Prior Art] Touch panels originated in the United States in the 1970s for military use. In the 1980s, technology was transferred to civilian use and developed into various uses. The input method of a conventional electronic computing device (for example, a computer) is an input interface such as a keyboard or a mouse. However, the size of these peripheral input devices is too large to be carried, which is likely to cause a major obstacle to the thinning of electronic products. Because of the demand for thin electronic devices, touch panels have become increasingly popular with consumers in portable electronic products. In addition, in addition to the application of personal portable information products, the touch panel is also expanding into information appliances, public information, communication equipment, office automation equipment, information collection equipment, and industrial equipment. The research and development of the panel has gradually become the focus of the development of the electronics industry in recent years. In general, the principle of the touch panel can be roughly divided into two types: resistive and capacitive. Most touch screens today are resistive. A transparent conductive circuit board made of indium tin oxide (IT0) is placed between two transparent thin layers such as polyethylene terephthalate (PET). Spacers are spaced apart and fixed on top of a liquid crystal display (LCD) screen or other drawing device. When a finger is pressed to form a contact point, the touch position is recorded. This technique 6 200846997 is simple, but it still has the following disadvantages: First, the resistive touch panel has a two-layer structure and therefore has a certain thickness. Second, the technology is also prone to wear and tear on the screen. If a coating that protects the screen or reduces reflection is added, it will cause poor light transmission. Third, the hand-shadow effect also allows the sensor to judge the error. In order to solve the shortcomings of the resistive touch panel, the technical development of the capacitive touch panel has gradually emerged. Capacitive touch panels are usually coated with a film of indium tin oxide and a protective film on the surface of the transparent glass. Then, when the person does not touch the touch panel, the electrodes are at the same potential, and no current is passed through the touch panel. When it comes into contact with the touch panel, static electricity in the human body flows into the ground and a weak current is passed. The detection electrode changes in accordance with the current value, and the position of the contact can be calculated. For example, a capacitive sensor structure 1, as disclosed in U.S. Patent No. 6,961,049, is incorporated herein by reference. It is mainly formed on the non-conductive substrate 10 to form a sensing line 11'. The sensing line 11 is composed of transparent oxidized sulphur or other conductive material. Then, an adhesive layer 12 is formed on the sensing line 11, and finally a non-conductive substrate 13 is overlaid on the adhesive layer. The sensing line 11 can generate an electric field by the electronic signal provided by the circuit connection module 14. In order to solve the problem of the conventional resistive touch panel and reduce the thickness of the touch panel, there is a need for a single-layer touch sensing structure and a touch display panel using the same to solve the conventional resistive touch panel. The problem that arises. SUMMARY OF THE INVENTION 7 200846997 The object of the present invention is to form a complex === control sensing structure directly on a conductive layer material for twisting purposes. The purpose of the present invention is to provide a panel with a plurality of types of touch display panels, which are coupled to form a touch control layer. To increase the use of the field: the purpose. Inverted to reduce the thickness of the touch display panel, including providing a single-layer touch sensing block having a plurality of "sensing blocks, the sensing electrodes, any two adjacent electrodes can be" a complex number measuring structure Including the invention, there is provided a single-layer touch sensing sensing block having two electric wires: any two adjacent electrodes can be formed into a flat capacitor, and the package 1 reaches the target: the present invention further provides - The touch display surface block has η: I plug having at least one sensing block, and the sensing electrode is configured to divide the sensing block into a plurality of electrodes adjacent to each other. τ ^ ^ ^ ^4- Λ 仃 一 一 一 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The capacitance changes to determine the touch position—not 7L, which is placed below the conductive layer. 8 200846997 [Embodiment] To enable your review committee to further understand the features, purposes, and functions of the present invention. And understanding, the following is the phase of the device of the present invention. The detailed structure and the concept of the design are explained in the original so that the reviewer can understand the features of the present invention. The detailed description is as follows: Please refer to FIG. 2A, which is a single-layer touch sensing structure embodiment of the present invention. The single-layer touch sensing structure 2 includes a conductive layer 21 having a plurality of sensing blocks 22, and the sensing block 22 further has a plurality of trenches to divide the sensing block into The plurality of electrodes may be used as a planar capacitor structure. The single-layer touch sensing structure 2 of the present invention is characterized in that all of the sensing electrodes are configured by using only one conductive layer 21. The block 22 is formed by etching the conductive layer 21. The conductive layer 21 can be a conductive polymer material or a transparent conductive oxide, wherein the high-concentration conductive polymer can be polyethyl diether porphine (poly ( 3, 4-e1:hylenedioxythiophene), PED0T); The transparent conductive oxides (TCO) system can be indium tin oxide (ITO), anti tin oxide (antinomy tin oxi) De, ΑΤΟ) or oxidized (zinc oxide,
ZnO)，但不以此為限。在本實施例中該導電層21係為氧化 銦錫材料。 如圖二B所示，該圖係為本發明之感應區塊剖面示意 圖。在該剖面圖上，可以看出相鄰兩的電極211與212之 間形成一平面電容，該平面電容係指電場方向為圖中之X 軸方向。此外’該導電層21可以形成於一基板20上，該 基板20係可選擇為可撓性基板，例如：塑膠基板，但不以 9 200846997 此為限’或者是玻璃基板。另外，在該導電層21上更可以 形成一層保護層26，以防止感應區塊22内之電極結構或 者是溝槽受損。再回到圖二A所示，在該導電層21上之兩 侧’亦即在該複數個感應區塊22之兩侧分別設置有電訊線 路模組23及24，其係與該複數個感應區塊22内之電極作 電性連接，以提供電子訊號給該感應區塊22内之電極，以 產生均勻的感測電場使得相鄰之兩個電極之間形成電容效 應。該電訊線路模組23及24再藉由覆晶薄膜（chip on f i lm， COF)的軟性電路板25與其他之外部電子元件相偶接。 明餐閱圖二A以及圖三β所示，該圖係為本發明之單 層觸控感測結構之感應區塊實施例示意圖。在圖三Α以及 之實施例中，單層觸控感測結構3具有複數個感應 =’、在圖中僅顯示—部份。該感應區塊31係以溝槽 301與該導電層3〇做分隔。★歹導帝厣q 間的、°亥蜍电層30與该感應區塊31 ==可雜刻的方法在該導電層3〇上關出ZnO), but not limited to this. In the present embodiment, the conductive layer 21 is an indium tin oxide material. As shown in Fig. 2B, the figure is a schematic cross-sectional view of the sensing block of the present invention. In the cross-sectional view, it can be seen that a planar capacitance is formed between the adjacent electrodes 211 and 212, and the plane capacitance means that the direction of the electric field is the X-axis direction in the figure. Further, the conductive layer 21 may be formed on a substrate 20, which may be selected as a flexible substrate, such as a plastic substrate, but not limited to 9 200846997 or a glass substrate. In addition, a protective layer 26 may be formed on the conductive layer 21 to prevent damage to the electrode structure or the trench in the sensing block 22. Returning to FIG. 2A, telecommunications line modules 23 and 24 are disposed on both sides of the conductive layer 21, that is, on both sides of the plurality of sensing blocks 22, and the plurality of sensing systems are connected to the plurality of sensing blocks 22 The electrodes within block 22 are electrically connected to provide an electrical signal to the electrodes within the sensing block 22 to produce a uniform sensing electric field such that a capacitive effect is formed between the adjacent two electrodes. The telecommunication circuit modules 23 and 24 are then coupled to other external electronic components by a flexible circuit board 25 of a chip-on-film (COF). The present invention is shown in FIG. 2A and FIG. 3β, which is a schematic diagram of an embodiment of a sensing block of the single-layer touch sensing structure of the present invention. In the embodiment of Fig. 3 and the embodiment, the single layer touch sensing structure 3 has a plurality of sensing = ', only the portion shown in the figure. The sensing block 31 is separated from the conductive layer 3 by a trench 301. ★ 歹 厣 厣 间 间 ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° °
於“声30 IT 一個感應區塊31内係利用钱刻的方式 之Si: 函數曲線的形式之溝槽犯。圖三A 方波曲線’透過該方波曲線所形成娜 ==31分成兩個電極結構33與34，兩= 結構33與34間形成平行電容。包連接讀传兩個電極 另外如圖三Β所示，在 函數曲線係為-弦波曲線籌槽所形成的 %將感應區域分成兩個電極==、線:形成之溝槽In "Sound 30 IT, a sensing block 31 uses a method of money engraving in the form of Si: a curve in the form of a function curve. Figure 3A Square wave curve 'through the square wave curve formed by Na == 31 is divided into two Electrode structures 33 and 34, two = structure 33 and 34 form a parallel capacitance. The package is connected to read and transmit two electrodes. As shown in Fig. 3, the function curve is the sine wave curve. Divided into two electrodes ==, line: groove formed
所示，除了前叙錢#線# ^:广閱圖三C 飞者疋弦波曲線外，該複數個 200846997 溝槽37也可以形成三角波曲線。請參閱圖三D所示，該圖 2為本發明之單層觸控感測結構另一實施例示意圖。在本 貫施例中，感舰塊31内之係具有複數個矩形電極結構 3卜不過圖三D的電極結構38如果要㈣應整個顯示區域 的居，需要⑧、度很㊄的電極分佈，但是這樣—來供應電子 訊號的線料計就會相當複雜，所以這樣的設計通常可應 用於簡單的按鍵式的觸控面板。 〜As shown, in addition to the former narration #线# ^: 广看图三C 疋 波 波 曲线 curve, the plurality of 200846997 grooves 37 can also form a triangular wave curve. Please refer to FIG. 3D, which is a schematic diagram of another embodiment of the single-layer touch sensing structure of the present invention. In the present embodiment, the sensing block 31 has a plurality of rectangular electrode structures 3, but the electrode structure 38 of FIG. 3D requires an electrode distribution of 8, 5 degrees if (4) the entire display area is to be occupied. But in this way, the line gauge that supplies the electronic signal can be quite complicated, so this design can usually be applied to a simple touch-sensitive touch panel. ~
請參閱圖四A以及圖四B所示，該圖係為本發明 層觸控感測結構又—較佳實施例示意圖。在本實施例中， 該種單層觸控感測結構4，包括有—導電層4()，其係具有 至少-感應區塊4卜該感應區塊41上 42，以將該感應區塊分割成三個電極副、4ιι以及的4= 任兩相鄰間之電極可行成—平面電容 之縣_成三角波的分佈，以將該感』d ^ , 9 . 及412。再將母—個電極410、411 '構。電壓源連接，以形成如圖四B所示之電容結 "二：：：戶Γ ’該圖係為本發明之觸控顯示面板實 一導電層n魏路触^4；面;^包括有 該感輸4 502上具麵料塊咖， 割成複數個電極，任兩相鄰m可行成分 構。該導電層之結構係可為如前逑圖 空电谷結 及圖四的結構。其詳細技 二Α至二D以 叫徵如則所述’在此不作贅述。 200846997 在本實施例中，該導電層50係形成於一透明基板5〇1上， 該透明基板501係可選擇為可撓性基板，例如：塑膠基板 (但不以此為限）或者是玻璃基板。 & 、〃該電訊線路模組51，其係設置於該導電層5〇上以與該 ^數個電極作電性連接。在本實施例中，該電訊線路模= γι係形成於該複數個感應區塊502之兩侧，以提供電子1 號給該感應區塊5G2内之電極，產生均勻之電場^。=Referring to FIG. 4A and FIG. 4B, the figure is a schematic diagram of a layer touch sensing structure of the present invention. In this embodiment, the single-layer touch sensing structure 4 includes a conductive layer 4 () having at least the sensing block 4 and the sensing block 41 on the sensing block 41. Dividing into three electrode pairs, 4 ιι and 4 = any two adjacent electrodes can be made - the distribution of the plane capacitance _ into a triangular wave, to the sense "d ^, 9 . The mother-electrodes 410, 411' are further constructed. The voltage source is connected to form a capacitor junction as shown in FIG. 4B. The image is a conductive layer of the touch display panel of the present invention. There is a sense of loss of 4 502 on the fabric block, cut into a plurality of electrodes, any two adjacent m feasible composition. The structure of the conductive layer may be the structure of the front view and the structure of Fig. 4. The details of the technique are as follows: In this embodiment, the conductive layer 50 is formed on a transparent substrate 5〇1, and the transparent substrate 501 can be selected as a flexible substrate, such as a plastic substrate (but not limited thereto) or a glass. Substrate. And the telecommunication circuit module 51 is disposed on the conductive layer 5〇 to be electrically connected to the plurality of electrodes. In this embodiment, the telecommunication line mode = γι is formed on both sides of the plurality of sensing blocks 502 to provide an electron 1 to the electrodes in the sensing block 5G2 to generate a uniform electric field. =
f ’其係與該電訊線路模組51相偶接，以根;康 施。=5。2上之電容變化，而決定觸控位置。在本實 ，该控制单元52係可藉由覆晶薄膜（chip 〇n f丨lm， 以卜的叙性電路板503與該電訊線路模組51相偶接，但不 方此為限。該顯示單元53，其係設置於該導電層如:下 光==單^ 53，係可選擇為—液晶顯示單^以及-發 導電儿其中之―，但不以此為限。為了保護該 / 50’在該導電層5〇上方更可以形成一層保護層5心 制本t以上所述者，僅為本發明之實施例，當+能二之限 變化^明範圍。即大凡依本發明申請專利範圍所做之均等 明之^ ’仍將不失本發明之要義所在，亦不脫離本發 和範圍，故都應視為本發明的進一步實施狀況。 該結^合上述，本發明提供之單層觸控感測結構以及使用 且其社之觸控顯示面板，可以解決習用電阻式之缺點，並 業界^ ^簡單谷易製造可以降低生產成本’因此可以滿足 之發屏需求，進而提高該產業之競爭力以及帶動週遭產業 要件&，喊已符合發明專利法所規定申請發明所需具備之 ，故爰依法呈提發明專利之申請，謹請貴審查委員 12 200846997 允撥時間惠予審視，並賜准專利為禱。f ' is coupled to the telecommunication line module 51 to the root; Kang Shi. =5. The capacitance on the 2 changes, and the touch position is determined. In this embodiment, the control unit 52 can be coupled to the telecommunication circuit module 51 by a chip-on-film (chip 〇nf丨lm), but the limitation is not limited thereto. The unit 53 is disposed on the conductive layer, such as: the light == single ^ 53, can be selected as - liquid crystal display single ^ and - conductive one of them - but not limited thereto. To protect the / 50 'The protective layer 5 can be formed above the conductive layer 5〇. The above is only the embodiment of the present invention, and the range of the + energy limit is changed. The scope of the present invention is not limited to the scope of the present invention, and should be considered as a further implementation of the present invention. The touch sensing structure and the touch display panel of the same can solve the shortcomings of the conventional resistive type, and the industry can easily reduce the production cost, so that the demand for the screen can be satisfied, thereby improving the industry. Competitiveness and driving the surrounding industry requirements & Has been in line with the provisions of the patent law invention required of the application of the invention, it was Yuan patented invention mention the law, you may wish to review the committee 12,200,846,997 allow time vouchsafed dial review, and given the quasi-patent prayer.
13 200846997 【圖式簡單說明】 圖一係為習用技術之電容式觸控面板示意圖。 圖二A係為本發明之单層觸控感測結構實施例不意圖。 圖二B係為本發明之感應區塊剖面示意圖。 圖三A至圖三C係為本發明之單層觸控感測結構之感應區 塊實施例示意圖。 圖三D係為本發明之單層觸控感測結構另一實施例示意 圖。 圖四A以及圖四B係為本發明之單層觸控感測結構又一較 佳實施例示意圖。 圖五係為本發明之觸控顯示面板實施例示意圖。 【主要元件符號說明】 10、13-非導電基板 11_感測線路 ⑩12-黏著層 14-電路連接模組 2 -单層觸控感測結構 > 20-基板 • 21-導電層 211、212-電極 2 2 -感應區塊 23、24-電訊線路模組 14 200846997 25- 軟性電路板 26- 保護層 3 -單層觸控感測結構 30-導電層 301-溝槽 31 -感應區塊 32-溝槽 33、34、35、36、38-電極結構 37-溝槽 4_单層觸控感測結構 40-導電層 41 -感應區塊 410、411、412-電極結構 42-溝槽 5-觸控顯示面板 50- 導電層 501-透明基板 5 0 2 -感應區塊 503-軟性電路板 51- 電訊線路模組 52- 控制單元 5 3-顯示單元 54-保護層 1513 200846997 [Simple description of the diagram] Figure 1 is a schematic diagram of a capacitive touch panel used in the prior art. FIG. 2A is not intended to be an embodiment of the single-layer touch sensing structure of the present invention. Figure 2B is a schematic cross-sectional view of the sensing block of the present invention. 3A to 3C are schematic views of an embodiment of a sensing block of a single-layer touch sensing structure of the present invention. Figure 3D is a schematic view of another embodiment of the single layer touch sensing structure of the present invention. 4A and FIG. 4B are schematic diagrams showing another preferred embodiment of the single-layer touch sensing structure of the present invention. FIG. 5 is a schematic diagram of an embodiment of a touch display panel of the present invention. [Main component symbol description] 10, 13-non-conductive substrate 11_sensing line 1012-adhesive layer 14-circuit connection module 2-single-layer touch sensing structure> 20-substrate•21-conductive layer 211, 212 - Electrode 2 2 - Sensing block 23, 24 - Telecommunications line module 14 200846997 25- Flexible circuit board 26 - Protective layer 3 - Single layer touch sensing structure 30 - Conductive layer 301 - Trench 31 - Sensing block 32 - Trench 33, 34, 35, 36, 38 - Electrode structure 37 - Trench 4 - Single layer touch sensing structure 40 - Conductive layer 41 - Sensing block 410, 411, 412 - Electrode structure 42 - Trench 5 - Touch display panel 50 - Conductive layer 501 - Transparent substrate 5 0 2 - Sensing block 503 - Flexible circuit board 51 - Telecommunications line module 52 - Control unit 5 3- Display unit 54 - Protective layer 15