201211837 六、發明說明： 【發明所屬之技術領域】 本發明關於觸控領域，特別關於一種偵測多觸摸點 之觸控面板，使用該觸控面板之觸控裝置以及多觸摸點 之真座標之彳貞測方法。 【先前技術】 馨 目前，藉由手指等觸控物件之觸摸，直接對電子設 備進行操作之技術已普遍應用於日常工作和生活中。二 等電子設備-般採用觸控裝置來感應觸摸動作並產生 相應電信號以供後續操作。所述觸控裝置於實際生產或 使用中常表現為觸控板、觸控屏等形式。 按照觸控原理之不同，觸控面板主要分為電阻式、 電容式、光學式、電磁式、聲波式等。其中電容式觸控 面板之工作原理為：由使用者以手指或感應筆等可導電 •之觸控物件觸摸面板表面’導致面板被觸摸之位置產生 電壓變化。處理器根據此電壓變化偵測出被觸摸位置之 座標，以達關控操作之目的。光學式觸控面板和聲波 式觸控面板之工作原理比較類似’都係藉由發射源產生 先波或聲波’在波傳播之路線上，設置接收裝置。當發 生觸摸時’ _物件會_波之傳播’則接收裝置接收 之㈣就會產生異常’以此來债測觸摸點位置。 =了配合不同電子設備，業者研發出各種不同電容 式觸控面板，投射電容式觸控面板便係其中—種。如圖 201211837 勺H 種習知呈網格狀之投射電容式觸控圖形1 二:Γ向之第一電極2、沿第二方向之第二電極 θ和基板5。其中，第一電極2盥第二 板5上，且交叉處以絕緣二 處理盗（圖未示）連接至兩組電極2、3。當可導 電之觸控物件觸摸觸控面板表面時，每組電極都會產生 自電容變化，此自電容變化可由處理器偵測並二量出 每組電極上自電容變化之質心位置代表觸摸點在每 一電極方向上之位置，觸摸點之座標位置由兩組電極方 向上之質心交叉匹g己計算得出。故，習知偵測方法步驟 為：a)分別掃描第—電極2和第二電極3 ; b)解析出觸 j點在二電極上之自電容變化之質心；c)由所述質心計 算出觸摸點之座標。 當觸控面板表面同時出現至少二觸控點時，以二觸 摸點C、D為例，如圖3所示，每組電極方向上就會解 •析出二質心，即第一方向上質心6a、6b和第二方向上 質心7a、7b，由所述兩組質心相互交叉配置，計算出四 座標位置 C(6a，7a)、C，(6a，7b)、D，(6b，7a)、D(6b，7b)， 其中只有二座標為所述二觸摸點之真座標c(6a，7a)、 D(6b，7b)，另外二座標為假座標 c，(6a，7b)、D，(6b7a)。 同投射電容式觸控面板之觸摸點偵測原理相似，光 學式觸摸面板和聲波式觸控面板亦係利用二方向之感 應線路，分別感應出觸摸點在二方向接收信號發生異常 201211837 之位置之質心，再藉由交叉配置之方式計算出觸摸點座 標。故，當觸摸點數量多於二時，亦會產生假座標之問 題。 由此可見，無論係使用習知投射電容式觸控面板， 還係使用光學式觸控面板和聲波式觸控面板來偵測至 少兩點觸摸時，就不可避免會產生觸摸點之假座標，使 觸控面，之應用受到限制。故，如何在制至少兩點觸 馨摸X算出真座標，剔除假座標，便成為此類觸控面板 及其偵測方法上需要解決之問題。 【發明内容】 有鑒於此，有必要提供一種偵測多觸摸點之真座標 之觸控面板及使用該觸控面板之觸控裝置，以在觸控面 板偵測多觸摸點時，能準確判斷出真座標，同時剔除假 座標。 、還有必要提供一種偵測多觸摸點之真座標之偵測 -種偵測多觸摸點之真座標之觸控面板，包括具有 線路和帛—線路之感應線路層’用於偵測所述多觸 、點之原始座標。在所述感應線路層之—側設置有用於 =除所述感躲路層侧出之所述原始座標中之假座 輪出所述真座標之判斷線路層，所述判斷線路層且 有第三線跋。 八 201211837 一種偵測多觸摸點之真座標之觸控裝置，包括上述 偵測多觸摸點之真座標之觸控面板，導線和處理器。導 線刀別電n連接感應線路層和判斷線路層至處理器。 :種偵測多觸摸點之真座標之侧方法，包括以下 步驟.a)當上述觸控面板表面同時產生至少二觸摸點 時’處理器分別掃描感應線路層之位於第一方向之第二 位於第二方向之第二線路；b)處理器解析出觸摸 姑傲第Γΐ向和第二方向上之自電容變化之質心，並依 〜鼻出觸摸點之原始座標；c)當步驟b)中在第一 方向和第二方向上都解析出至少二所述質心 器掃描判斷線路層之位於第三方向之第三線路；處理 盗計算出觸摸點在第三方向上之投影；e)處理器 原1座標在第三方向上之投影；_理器判斷步驟 之投影與步驟e)中之投影之間之距離是否小於Μ ^值；g)當判斷結果為是時，則原始座標為觸摸點: 真座標’處理器輸出真座標。 、•’ 另種多觸摸點之真座標之偵測方法，句紅 驟.a) ^上述之觸控面板表面同時產生至少二 時，處理器分別掃描所述感應線路層之位於 、點 所述第-線路和位於第二方向之所述第二線路；^向之 述處理器解析出所述觸摸點在所述第—方向和’戶所 二方向上之自電容變化之質心’並依據所述質心= 所述觸摸點之原始座標；e) t所述步W)中在所述第 201211837 方向或所述第_方向上只解析出—個所述質心時，則 所述原始座標為所述觸摸點之真座標，所述處理器輸出 、 所述真座標。 用上述彳貞測多觸摸點之真座標之觸控面板和偵 測方法’可克服習知觸控面板在彳貞測多_摸時易輸出 假座標之問題，準確計算出真座標。 I 【實施方式】 以下結合附圖及示例性之實施方式對本發明之技 術特徵和優點作更詳細之㈣。惟應當理解，在未進一 步敍述之if;兄下，—實施方式中之元件、結構和特徵亦 可有益地結合到其他實施方式中。 圖4a為本發明第一實施方式之偵測多觸摸點之真 座標之觸控面板之剖面示意圖，第-實施方式為投射電 容式觸控面板。觸控面板包括感應線路層11〇和設 #置於感應線路層一側之判斯線路層13〇。其中，咸廄繞 路層Π0包括分佈於第一方向（圖4b中χ軸方向複 數第一電極線路1U、分佈於第二方向（圖4b中γ軸方 向）之複數第二電極線路112和絕緣層Π3。複數第一電 極線路ill和複數第二電極線路112分佈於不同層，且 相互交叉設置於絕緣層113兩側’如圖4b為感應線路 層U〇之平面結構示意圖。判斷線路層130包括分佈於 第三方向（圖4c令Z軸方向）之複數第三電極線路131。 201211837 如圖4c所示，z方向與χ方向和γ方向不重合且z 了向與X方向、γ方向之間各形成一夾角。該二夾角既 可相等，亦可不等。為了使感應線路層110和判斷線路 層130相互絕緣，在兩者之間還設置一絕緣基板。 第一電極線路111、第二電極線路112和第三電極 線路131分別由複數導線140連接至處理器150，形成 偵測多觸摸點之真座標之偵測裝置10，如圖5所示。 φ 圖6a為本發明第二實施方式之偵測多觸摸點之真 座標之觸控面板2〇〇之剖面示意圖。第二實施方式之觸 控面板200與第一實施方式較為相似，亦係投射電容式 觸控面板。觸控面板200包括：.感應線路層210(見圖 6b)，s又置於感應線路層21 〇 一侧之判斷線路層，和 。又置與感應線路層21 〇和判斷線路層230之間，使兩者 相互絕緣之絕緣基板22〇。不同之處在於，感應線路層 mo中，分佈於第一方向X之複數第一電極線路211和 _分佈於第二方向Y之複數第二電極線路212設置於同 層，在二電極線路交叉處之第一電極線路211和第二電 極線路212之間設置複數絕緣片213,參看圖6b感應線 路層210之平面結構示意圖。 感應線路層中χ、γ方向電極線路圖形結構亦可不 同’如圖7所示’其為本發明第三實施方式之觸控面板 之感應線路層310之平面結構示意圖，其中分佈於第一 方向X之複數第一電極線路311可由複數第一導電單元 201211837 311a和複數條第一導線3Ub組成，複數第一導電單元 31la之間彼此分開，由複數條第一導線3Ub連接；分 佈於第二方向γ之複數第二電極線路312可由複數第二 導電單元312a和複數條第二導線312b組成，複數第二 導電單元312a之間彼此分開，由複數條第二導線312b 連接。其中，複數第一電極線路311和複數第二電極線 路312之間由絕緣層313隔開。第三實施方式中觸控面 馨板之其他元件及位置設置方式同第一實施方式。 圖8為本發明第四實施方式之觸控面板之感應線路 層410之平面結構示意圖，其中分佈於第一方向X之複 數第一電極線路411可由複數第一導電單元4Ua和複 數條第一導線411b組成，複數第一導電單元4Ua之間 彼此分開，由複數條第一導線4Ub連接；分佈於第二 方向Y之複數第二電極線路412可由複數第二導電單元 4l2a和複數條第二導線412b組成，複數第二導電單元 春4l2a之間彼此分開，由複數條第二導線41%連接。其 中，複數第一導電單元411a與複數第二導電單元412a 和複數條第一導線411b不相互接觸。在複數條第一導 線I】15和複數條第二導線412b之間設置複數絕緣片 413。第四實施方式令觸控面板之其他元件及位置設置 同第'一實施方式。 上述導電單元可為任何幾何形狀，例如多邊形、圓 形等。在選擇材料上，一般為透明導電材料，例如氧化 201211837 第一導電單元 第一導線和第 銦錫（m>)等L同之設計需求 和第二導電單元之數量分別為至少兩條 二導線之數量分別為至少—條。 伽Π二觸摸點之真座標之觸控面板可為光學 == 線路層包括位於第-方向X之複 輿線^ 一nH路和位於第二方向¥之複數條第二光201211837 VI. Description of the Invention: [Technical Field] The present invention relates to the field of touch, and more particularly to a touch panel for detecting multi-touch points, a touch device using the touch panel, and a true coordinate of the multi-touch point Speculation method. [Prior Art] Xin At present, the technology of directly operating electronic devices by touching touch objects such as fingers has been widely used in daily work and life. Second-class electronic devices generally use touch devices to sense touch actions and generate corresponding electrical signals for subsequent operation. The touch device is often in the form of a touch panel, a touch screen, or the like in actual production or use. According to the different touch principles, the touch panel is mainly divided into a resistive type, a capacitive type, an optical type, an electromagnetic type, and an acoustic wave type. The working principle of the capacitive touch panel is that the touch surface of the panel touched by the user with a finger or a sensor pen causes a voltage change at the position where the panel is touched. The processor detects the coordinates of the touched position according to the voltage change for the purpose of the control operation. The working principle of the optical touch panel and the acoustic touch panel is similar to that of the "wave or sound wave generated by the source" on the path of wave propagation, and the receiving device is arranged. When a touch occurs, the _object will _wave propagation, and the receiving device receives (4) an abnormality is generated, thereby measuring the touch point position. = With the help of different electronic devices, the company has developed a variety of different capacitive touch panels, and projected capacitive touch panels are among them. As shown in Fig. 201211837, H is a grid-like projected capacitive touch pattern 1 2: a first electrode 2, a second electrode θ in a second direction, and a substrate 5. Wherein, the first electrode 2 is on the second board 5, and the intersection is connected to the two sets of electrodes 2, 3 by an insulating second handle (not shown). When the conductive touch object touches the surface of the touch panel, each set of electrodes will have a self-capacitance change, and the self-capacitance change can be detected by the processor and the position of the centroid of the self-capacitance change on each set of electrodes represents the touch point. At the position in the direction of each electrode, the coordinate position of the touch point is calculated from the centroid intersection of the two sets of electrodes. Therefore, the conventional detection method steps are: a) scanning the first electrode 2 and the second electrode 3 separately; b) analyzing the centroid of the self-capacitance change of the touch j point on the two electrodes; c) from the centroid Calculate the coordinates of the touch point. When at least two touch points appear on the surface of the touch panel at the same time, taking the two touch points C and D as an example, as shown in FIG. 3, the two centroids are resolved in the direction of each set of electrodes, that is, the centroid in the first direction 6a, 6b and the centroids 7a, 7b in the second direction, the two sets of centroids are arranged to cross each other, and the four coordinate positions C(6a, 7a), C, (6a, 7b), D, (6b, 7a are calculated. ), D(6b, 7b), where only two coordinates are the true coordinates c (6a, 7a), D (6b, 7b) of the two touch points, and the other two coordinates are false coordinates c, (6a, 7b), D, (6b7a). Similar to the touch point detection principle of the projected capacitive touch panel, the optical touch panel and the acoustic touch panel also utilize the two-way sensing line to respectively sense the position where the touch point receives the abnormality in the second direction 201211837. Centroid, and then calculate the touch point coordinates by means of cross configuration. Therefore, when the number of touch points is more than two, a problem of false coordinates is also generated. It can be seen that whether a conventional touch capacitive touch panel is used, or an optical touch panel and an acoustic touch panel are used to detect at least two touches, the false coordinates of the touched point are inevitably generated. The application of the touch surface is limited. Therefore, how to calculate the true coordinates in at least two touches of X and X, and eliminate the false coordinates, has become a problem to be solved in such touch panels and their detection methods. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a touch panel for detecting the true coordinates of a multi-touch point and a touch device using the touch panel, so as to accurately determine when the touch panel detects multiple touch points. True coordinates, while eliminating false coordinates. It is also necessary to provide a detection of the true coordinates of the multi-touch point - a touch panel for detecting the true coordinates of the multi-touch point, including a sensing circuit layer having a line and a line - for detecting the Multi-touch, the original coordinates of the point. Provided on a side of the sensing circuit layer for determining a circuit layer of the true coordinate in the original coordinate of the original coordinate side of the sensing layer, the determining circuit layer and having a third line Hey.八 201211837 A touch device for detecting the true coordinates of a multi-touch point, comprising the above-mentioned touch panel, wire and processor for detecting the true coordinates of the multi-touch point. The wire cutter is electrically connected to the sensing circuit layer and judges the circuit layer to the processor. The method for detecting the side of the true coordinates of the multi-touch point includes the following steps: a) when the surface of the touch panel simultaneously generates at least two touch points, the processor separately scans the second layer of the sensing circuit layer in the first direction. a second line in the second direction; b) the processor parses out the centroid of the self-capacitance change in the first and second directions of the touch, and according to the original coordinates of the touch point; c) when step b) Forming, in the first direction and the second direction, at least two third lines in the third direction of the centroid scan determination circuit layer; processing theft to calculate the projection of the touch point in the third direction; e) processing The original coordinate of the first coordinate is projected in the third direction; whether the distance between the projection of the judgment step and the projection in step e) is less than Μ ^ value; g) when the judgment result is yes, the original coordinate is the touch point : True coordinate 'processor output true coordinates. , • The detection method of the true coordinates of another multi-touch point, the sentence is red. a) ^ The touch panel surface is generated at least two times at the same time, and the processor scans the location of the sensing circuit layer separately a first line and the second line in the second direction; the processor is configured to parse the centroid of the self-capacitance change of the touch point in the first direction and the direction of the household The centroid = the original coordinate of the touch point; e) t in the step W), when only the centroid is parsed in the 201211837 direction or the _ direction, the original The coordinates are the true coordinates of the touch point, and the processor outputs the true coordinate. The above-mentioned touch panel and detection method for detecting the true coordinates of the multi-touch point can overcome the problem that the conventional touch panel can easily output the false coordinates when measuring multiple touches, and accurately calculate the true coordinates. [Embodiment] The technical features and advantages of the present invention will be described in more detail in conjunction with the accompanying drawings and exemplary embodiments. It should be understood, however, that the elements, structures, and features of the embodiments may be beneficially incorporated in other embodiments. 4a is a cross-sectional view of a touch panel for detecting a true coordinate of a multi-touch point according to a first embodiment of the present invention. The first embodiment is a projected capacitive touch panel. The touch panel includes an inductive circuit layer 11 and a juxtaposed circuit layer 13 on the side of the inductive circuit layer. Wherein, the salty winding layer Π0 includes a plurality of second electrode lines 112 and insulation distributed in the first direction (the plurality of first electrode lines 1U in the x-axis direction in FIG. 4b, distributed in the second direction (the γ-axis direction in FIG. 4b)) Layers 3. The plurality of first electrode lines ill and the plurality of second electrode lines 112 are distributed in different layers and are disposed on both sides of the insulating layer 113. FIG. 4b is a schematic diagram of the planar structure of the sensing circuit layer U. The plurality of third electrode lines 131 are distributed in the third direction (Fig. 4c for the Z-axis direction). 201211837 As shown in Fig. 4c, the z direction does not coincide with the χ direction and the γ direction, and the z direction is opposite to the X direction and the γ direction. Each of the two forms an angle. The two angles may be equal or unequal. In order to insulate the sensing circuit layer 110 and the determining circuit layer 130 from each other, an insulating substrate is further disposed between the two. The first electrode line 111, the second The electrode line 112 and the third electrode line 131 are respectively connected to the processor 150 by a plurality of wires 140 to form a detecting device 10 for detecting the true coordinates of the multi-touch point, as shown in FIG. 5. φ FIG. 6a is a second embodiment of the present invention. Way of detection The touch panel 200 of the second embodiment is similar to the first embodiment, and is also a projected capacitive touch panel. The touch panel 200 includes: The sensing circuit layer 210 (see FIG. 6b), s is again placed on the side of the sensing circuit layer 21, and the circuit layer between the sensing circuit layer 21 and the determining circuit layer 230 is insulated from each other. The insulating substrate 22 is different in that, in the sensing circuit layer mo, the plurality of first electrode lines 211 distributed in the first direction X and the plurality of second electrode lines 212 distributed in the second direction Y are disposed in the same layer, A plurality of insulating sheets 213 are disposed between the first electrode line 211 and the second electrode line 212 at the intersection of the two electrode lines. Referring to FIG. 6b, a schematic diagram of the planar structure of the sensing circuit layer 210. The pattern structure of the χ and γ-direction electrode lines in the sensing circuit layer is also FIG. 7 is a schematic plan view showing a planar structure of the sensing circuit layer 310 of the touch panel according to the third embodiment of the present invention, wherein the plurality of first electrode lines 311 distributed in the first direction X may be complex. The first conductive unit 201211837 311a and the plurality of first wires 3Ub are formed, and the plurality of first conductive units 31la are separated from each other by a plurality of first wires 3Ub; the plurality of second electrode lines 312 distributed in the second direction γ may be plural The second conductive unit 312a and the plurality of second conductive lines 312b are separated from each other by a plurality of second conductive lines 312b, wherein the plurality of first electrode lines 311 and the plurality of second electrode lines 312 are The space is separated by the insulating layer 313. The other elements and positional arrangement of the touch surface panel in the third embodiment are the same as those in the first embodiment. 8 is a schematic plan view of a sensing circuit layer 410 of a touch panel according to a fourth embodiment of the present invention, wherein the plurality of first electrode lines 411 distributed in the first direction X may be composed of a plurality of first conductive units 4Ua and a plurality of first wires. 411b is composed of a plurality of first conductive units 4Ua separated from each other by a plurality of first wires 4Ub; a plurality of second electrode lines 412 distributed in the second direction Y may be composed of a plurality of second conductive units 141a and a plurality of second wires 412b The composition, the plurality of second conductive units are separated from each other by spring 4l2a, and are connected by a plurality of second wires 41%. The plurality of first conductive units 411a and the plurality of second conductive units 412a and the plurality of first conductive lines 411b are not in contact with each other. A plurality of insulating sheets 413 are disposed between the plurality of first wires I] 15 and the plurality of second wires 412b. The fourth embodiment has the other components and positional arrangement of the touch panel as in the first embodiment. The above conductive elements may be of any geometric shape such as a polygon, a circle or the like. In the selection of materials, generally a transparent conductive material, such as oxidation 201211837 first conductive unit first wire and indium tin (m>), etc. L and the design requirements and the number of second conductive units are respectively at least two two wires The number is at least - strip. The touch panel of the true coordinates of the Gaya two touch point can be optical == The circuit layer includes a complex line in the first direction X, a nH path, and a plurality of second lights in the second direction.
包括位於第三方向z之複數條 方向之光學線路可同上述投射電容式 Α工板之電極線路分佈於不同層，亦可分佈於同層。 光學線路分佈于同層時，可由處理器控制其 作順序’在觸控面板表面依次出現第一光學線路、第 二光學線路和第马學線路，來完成不同光學線路之工 由於光學式㈣面板和聲波式觸控面板之偵測原理 似故上述偵測多點觸摸之觸控面板還可為聲波式觸 控面板。其結構同上述光學式觸控面板。 上述偵測多點觸摸之觸控面板中各個元件依據實 際需要不同，可由透明材料製成，亦可由不透明材料製 成。電極線路由導電材料製成，而絕緣基板和絕緣片由 、邑緣材料製成。其中不透明導電材料可為銅、銘、金等 金? ’透明導電材料可為氧化銦錫（ΙΤΟ) # ;絕緣材 ,為Μ知玻璃等。例如，當觸控面板為不透明時， 可應用於筆記型電腦等設備之觸控操作面板；當觸控面 板為透明時，可應用于顯示器等發光顯示設備之表面做 201211837 成觸控操作螢幕。 上述偵測多點觸摸之觸控面板中複數第一線路可 相互平行。同理’複數第二線路料相互平行；複數第 三線路亦可相互平行。 上述價測多點觸摸之觸控面板中第一線路和第二 線路包括分別至少兩條線路，其中電極數目由所應用之 偵測f置之觸控解析度和尺寸大小而定。一般解析度要 求愈局’即晝素要求愈小’電極數目愈多；尺寸愈大， 電極數目亦愈多。 當上述觸控面板表面同時產生至少二觸摸點時，可 由圖9所不之制方法得到至少二觸摸點之真座標。以 上述投射電容式觸控面板上二觸摸點之㈣為例，結合 圖10所示，當觸控面板表面同時產生二觸摸點Α、σΒ 時’在起始步驟20之後，執行步驟21，處理器藉由導 線分別傳輸掃描信號至感應線路層上位於χ方向之複 數第-電極線路和位於γ方向之複數第二電極線路，對 二方向之電極線路進行掃描，分別_二方向電極線路 產生之自電容變化，並將此自電容變化信號傳回至處理 器；在掃描二方向電極線路之過程中，判斷線路層上位 於Ζ方向之複數條第二電極線路相互短接並且接地或者 連接至固定輸出端，作為遮罩層，用以遮罩 感 線路層上之電極線路時產生之電磁場干擾，使掃描雜 更加精準。完成感應線路層之掃描後，進入步驟22，處 201211837 Π依得到之自電容變化資料’解析出觸摸 在Χ方向之自電容變化之質心X卜Χ2和γ方 向之自電谷變化之質心yl、y2,並且依據上述 出原始座標 a(xl，yl)、b(x2，y2)、a，(xly2^b，(x2，yi)* 進入判斷步驟23,處理器判斷是否在χ方向和γ方向 之其中方向上僅解析出—質心。若判斷結果為否即 =不等於Χ2或yl不等於y2時，則進入步驟24，處理 益藉由導線傳輸掃描信號至⑽線路層上位於2方向之 複數條第三電極線路，對第三電極線路進行掃描，偵測 第三電極線路產生之自電容變化，並將自電容變化信號 傳回至處理H ;在掃描第三電極線路之過程中，第一電 極線路和第二電極線路處於空置狀態，以避免對第三電 極線路掃描時造成之影響。掃描完成後，進入步驟 處理器依據藉由掃描得到之第三電極線路自電容變化 之資料，解析出觸摸點A、3在z方向之自電容變化之 質心zl、Z2，並且計算出二觸摸點A、B在z方向上之 投影Dl、D2，如圖11所示，此二投影m、的係二觸 摸點A、B之真實投影。在步驟26中，處理器計算出步 驟22中原始座標 在Z方向之投影Dla、Dlb、ma，和mb，，如圖η所 示。進入步驟27，判斷步驟26中計算出之原始座標 a(xl，yl)、b(x2，y2)、a’(xl，y2)和 b’(x2，yl^ Z 方向之投 影Dla、Dlb ' Dla’、Dlb’與步驟25中計算出之觸摸點 [S] 13 201211837 A、B在Z方向上之投影D1、D2中一对应投影之間之 距離是否小於一預設參數值！^當判斷結果為是時，則 - 步驟26中計算出之投影對應之座標為觸摸點A、B之真 .座標，進入步驟28’處理器輸出真座標。若判斷結 否時，則” 26t計算出讀影對獻錢== A、B之假座標，進入步驟29，處理器刪除假座標。例 如Dla與D1之間之距離小於p ,則Dla對應之座標 • a(Xl，yl)為觸摸點A之真座標；〇1^與D1之間之距離大 於P，則Dla’對應之座標a，(xl，y2)為觸摸點a之假座 標。同理’可·出_點B之真座標。上述預設參數 值P可依據不同之操作要求來定義，例如，可用解析所 =應之晝素來定義；P之範圍大小可由具體實驗資料而 定，例如，p至少等於—畫素。 若判斷步驟23中判斷結果為是，即χ1等於χ2或 y等於y2時，則表明步驟22中處理器在X方向或γ # ^'向上僅解析出一質心，且計算出二原始座標。故，此 一原始座標為觸摸點A'b之真座標❶在步驟23後，直 接進入步驟28,處理器輸出真座標。 _上述處理器包括掃描單元、計算單元、比較判斷單 =和輸出單7〇。其中’掃描單元用於提供掃描信號給各 Ϊ路’同時接收掃描過程中產生之電信號，例如上述自 電谷變化之信號’ ·計算單元執行計算自電容變化之質心 和原始座標；比較騎單元將距離值和職參數值進行 201211837 比較，並做出相應判斷；輪入單元則係將最終得出之真 座標輸出至執行下一步操作之單元。 步驟28輸出之真座標，可輸出至控制設備，亦可 輸出至顯示裝置等’用以執行後續相關流程，此真座標 之接收端和用以執行之相關流程無特殊限制。 上述偵測方法亦可運用於偵測上述實施方式中之 觸控面板表面，同時產生二以上之觸摸點時，觸摸點之 φ 真座標之偵測判斷。 當上述偵測多點觸摸之觸控面板為光學式或聲波 式觸控面板時，偵測方法同上述投射電容式觸控面板之 偵測方法。此處不在贅述。 綜上所述，本發明確已符合發明專利之要件’遂依 法提出專利申請。惟，以上所述者僅為本發明之較佳實 施方式，自不能以此限制本案之申請專利範圍。舉凡熟 悉本案技藝之人士援依本發明之精神所作之等效修飾 •或變化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係習知投射電谷式觸控面板之平面結構示意 圖。 ' 圖2沿圖1中A-A線之剖面示意圖。 圖3係習知投射電容式觸控面板表面發生兩點觸摸 時之示意圖。 201211837 圖4a係第一實施方式之觸控面板之剖面示意圖。 ，4b係® 4a所痛控面板之感應線路層之平面結 意圖。 圖#所示觸控面板之判斷線路層之平面結 意圖。 π 圖5係具有圖4所示觸控面板之偵測裝置之示意The optical circuit including the plurality of directions in the third direction z may be distributed in different layers from the electrode lines of the above-mentioned projected capacitive raft, or may be distributed in the same layer. When the optical lines are distributed in the same layer, they can be controlled by the processor. The first optical line, the second optical line and the first line are sequentially displayed on the surface of the touch panel to complete the work of different optical lines due to the optical (four) panel. The detection principle of the acoustic wave touch panel is similar to that of the above-mentioned multi-touch touch panel. The touch panel can also be an acoustic wave touch panel. The structure is the same as the above optical touch panel. The components of the multi-touch touch panel described above may be made of a transparent material or an opaque material depending on actual needs. The electrode line is made of a conductive material, and the insulating substrate and the insulating sheet are made of a rim material. The opaque conductive material may be copper, inscription, gold or the like. The transparent conductive material may be indium tin oxide (ΙΤΟ)#; the insulating material is known as glass. For example, when the touch panel is opaque, it can be applied to a touch panel of a notebook computer or the like; when the touch panel is transparent, it can be applied to the surface of a display device such as a display to make a 201211837 touch operation screen. The plurality of first lines in the touch panel for detecting the multi-touch may be parallel to each other. Similarly, the plural second line materials are parallel to each other; the plurality of third lines may also be parallel to each other. The first line and the second line of the multi-touch touch panel include at least two lines respectively, wherein the number of electrodes is determined by the touch resolution and size of the applied detection f. The general resolution requires the end of the situation, that is, the smaller the requirement is, the more the number of electrodes is. The larger the size, the more the number of electrodes. When at least two touch points are simultaneously generated on the surface of the touch panel, the true coordinates of at least two touch points can be obtained by the method of FIG. Taking the four touch points (4) on the projected capacitive touch panel as an example, as shown in FIG. 10, when the touch panel surface simultaneously generates two touch points Α, σ ', after the initial step 20, step 21 is performed. The device separately transmits the scanning signal to the plurality of first electrode lines located in the χ direction on the sensing circuit layer and the plurality of second electrode lines located in the γ direction, and scans the electrode lines in the two directions, respectively, and the _ two-directional electrode lines are generated Self-capacitance change, and the self-capacitance change signal is transmitted back to the processor; in the process of scanning the two-direction electrode line, it is judged that the plurality of second electrode lines in the Ζ direction on the circuit layer are short-circuited and grounded or connected to the fixed The output end serves as a mask layer for shielding the electromagnetic field interference generated when the electrode lines on the circuit layer are sensed, so that the scanning noise is more precise. After the scanning of the sensing circuit layer is completed, proceed to step 22, where the self-capacitance change data obtained by the conversion in 201211837 resolves the centroid of the self-capacitance change in the x-direction and the centroid of the self-voltage valley change in the gamma direction. Yl, y2, and according to the above-mentioned original coordinates a (xl, yl), b (x2, y2), a, (xly2^b, (x2, yi) * enter the judgment step 23, the processor determines whether it is in the χ direction and In the direction of the γ direction, only the centroid is resolved. If the result of the determination is no = no equal to Χ 2 or yl is not equal to y2, then proceed to step 24, and the processing benefit is to transmit the scan signal to the (10) line layer at 2 a plurality of third electrode lines in the direction, scanning the third electrode line, detecting a self-capacitance change generated by the third electrode line, and transmitting the self-capacitance change signal to the processing H; in the process of scanning the third electrode line The first electrode line and the second electrode line are in a vacant state to avoid the influence on the scanning of the third electrode line. After the scanning is completed, the process proceeds to the step processor according to the self-capacitance change of the third electrode line obtained by scanning. , The centroids z1, Z2 of the self-capacitance change of the touch points A, 3 in the z direction are precipitated, and the projections D1, D2 of the two touch points A, B in the z direction are calculated, as shown in FIG. 11, the two projections m, The second projection of the touch points A, B. In step 26, the processor calculates the projections Dla, Dlb, ma, and mb of the original coordinates in the Z direction in step 22, as shown in Figure η. , determining the original coordinates a(xl, yl), b(x2, y2), a'(xl, y2), and b' (the projections of the x2, yl^ Z directions Dla, Dlb ' Dla', calculated in step 26, Dlb' is compared with the touch point calculated in step 25 [S] 13 201211837 A, B is the distance between a corresponding projection in the projection D1, D2 in the Z direction is less than a preset parameter value! ^ When the judgment result is yes Then, the coordinates corresponding to the projections calculated in step 26 are the true coordinates of the touch points A and B. The process proceeds to step 28', and the processor outputs the true coordinates. If the judgment is negative, then 26t calculates the interpretation of the image. Money == A, B false coordinates, enter step 29, the processor deletes the false coordinates. For example, the distance between Dla and D1 is less than p, then the coordinates corresponding to Dla • a (Xl Yl) is the true coordinate of touch point A; the distance between 〇1^ and D1 is greater than P, then the coordinate a, (xl, y2) corresponding to Dla' is the false coordinate of touch point a. Similarly, '可·出_ The true coordinate of point B. The preset parameter value P can be defined according to different operational requirements, for example, can be defined by the analytic=the morpheme; the range of P can be determined by specific experimental data, for example, p is at least equal to - If the judgment result in step 23 is YES, that is, χ1 is equal to χ2 or y is equal to y2, it indicates that the processor in step 22 only parses a centroid in the X direction or γ#^', and calculates two. Original coordinates. Therefore, the original coordinate is the true coordinate of the touch point A'b. After step 23, the process proceeds directly to step 28, and the processor outputs the true coordinate. The above processor includes a scanning unit, a calculation unit, a comparison judgment sheet = and an output sheet 7〇. Wherein the 'scanning unit is used to provide a scanning signal to each of the loops' while receiving the electrical signals generated during the scanning process, such as the above-mentioned signal from the electric valley change'. The computing unit performs the calculation of the centroid and the original coordinates of the self-capacitance change; The unit compares the distance value and the job parameter value with 201211837 and makes a corresponding judgment; the wheel-in unit outputs the final true coordinate to the unit that performs the next operation. The true coordinates of the output of step 28 can be output to the control device, and can also be output to the display device or the like to perform subsequent related processes. The receiving end of the true coordinate and the related process for executing are not particularly limited. The detection method can also be applied to detect the surface of the touch panel in the above embodiment, and when two or more touch points are generated, the detection of the true coordinates of the touch point is determined. When the touch panel for detecting a multi-touch is an optical or acoustic touch panel, the detection method is the same as the method for detecting the projected capacitive touch panel. I will not go into details here. In summary, the present invention has indeed met the requirements of the invention patents. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the planar structure of a conventional electric valley touch panel. Figure 2 is a cross-sectional view taken along line A-A of Figure 1. FIG. 3 is a schematic diagram of a conventional two-touch touch on the surface of a projected capacitive touch panel. 201211837 FIG. 4a is a schematic cross-sectional view of a touch panel of the first embodiment. , 4b Series® 4a is the planar junction of the sensing circuit layer of the pain control panel. The touch panel shown in Fig. # judges the planar knot intention of the circuit layer. π FIG. 5 is a schematic diagram of a detecting device having the touch panel shown in FIG.
圖㈣第二實施方式之觸控面板之剖面示意圖。 圖6b係圖6a所示觸控面板之感應線路層之平面結 應線路層之平 應線路層之平 圖7係第三實施方式之觸控面板之感 面結構不意圖。 圖8係第四實施方式之觸控面板之感 面結構不意圖。 之偵測 圖9係一實施方式之偵測多觸摸點之真座標 _ 方法之流程圖。 vFigure 4 is a schematic cross-sectional view of a touch panel of a second embodiment. 6b is a plan view of the planar circuit layer of the inductive circuit layer of the touch panel shown in FIG. 6a. FIG. 7 is a schematic view of the touch panel of the third embodiment. Fig. 8 is a schematic view showing the sensory structure of the touch panel of the fourth embodiment. Detection FIG. 9 is a flow chart of a method for detecting a true coordinate of a multi-touch point in an embodiment. v
圖10係當觸控面板表明產生二觸摸點時之示意圖。 圖11係圖10中觸摸點座標在第三方向之投影示意 【主要元件符號說明】 偵測裝置10 觸控面板100、200 201211837 感應線路層 110、210、310、410 絕緣基板120、220 判斷線路層130、230 第一電極線路 111、211、311、411 第一導電單元311a、411a 第一導線 311b、411b 第二電極線路112、212、312 第二導電單元312a、412a 第二導線 312b、412b 絕緣層113、313 絕緣片213、413 第三電極線路131 導線140 處理器150FIG. 10 is a schematic diagram when the touch panel indicates that two touch points are generated. 11 is a schematic diagram of the projection of the touch point coordinates in the third direction in FIG. 10 [Description of main components] Detection device 10 Touch panel 100, 200 201211837 Inductive circuit layers 110, 210, 310, 410 Insulating substrates 120, 220 Layer 130, 230 First electrode line 111, 211, 311, 411 First conductive unit 311a, 411a First wire 311b, 411b Second electrode line 112, 212, 312 Second conductive unit 312a, 412a Second wire 312b, 412b Insulating layer 113, 313 insulating sheet 213, 413 third electrode line 131 wire 140 processor 150
[S1 17[S1 17