201005608 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種聲波式觸控面板系統，尤其涉及一種壓電薄膜製 成之發射器及接收器的聲波式觸控面板系統。 【先前技術】 隨著電腦的普及，鍵盤及滑鼠已成為一般大眾接受程度最高的資 訊輸入設備，但是由於其具有體積較大不便攜帶及在使用上程式略顯 ❹複雜的缺點’因_發了另-種與螢幕疊合—體成型_控面板的輸 入裝置。 觸控面板是可以直接以手指或觸控筆點選面板上特定區域，已達 成輸入指令的-種人性化輸人妓。隨著電子產品輕、薄、短、小以 及功能複雜的發展趨勢，產品可供放置輸人裝置的空間十分有限，而 觸控面板的個可以完全;，除可同時具有越、狀的功能 之外，且可提供手寫輸入等人性化的操作方式，因此成為人機介面的 β最佳_。難·依紅作触可分為雜式、電奴、光學式以 及表面聲波式，其中，電阻式的觸控面板具有透光率差的缺點，因此 降低顯不靜的免度與對比；再者，因電容式_控面板紋溫度、 濕度或接地情況不同喊生的變化，固其穩定性較差；又，光學式的 觸控面板之解析度由紅外線發射接收對的數目決定，固騎度易受到 限制。 馨^上述觸控面板的缺點，因此，即有表崎波式觸控面板的發 目則表面聲波式觸控面板判斷觸控面板位置的方法約可分為兩 5 201005608 而另一類為陣列式發 類：一類為單—發射轉能ϋ解-接收轉能器 射轉能器與陣列式接收轉能器。 上速以半-發射轉能器與單—接收轉能器組成之表面聲波 控面板係秘射轉能器激發—表面波，經岭多反射栅或與面板邊緣 成厂特定角度斜向發射，使行經面板不同位置之表面波在不同的 抵達接收轉能器，經由接收轉訊號強度與時間的關係曲線，即可 觸碰面板的位置。如第一圖所示之美國專利第4, 644,100號案，其 ©即揭露-應用具該單-發射轉能器與單—接收轉能器之工作原理的表 面聲波式觸控面板之系統架構圖。如圖所示·該系統包括一基板， 該基板10上有一對發射轉能器T1與Τ2以及一對接收轉能器與 R2 ’ -與該兩對轉能器電性連接之控制系統u，各個轉能器⑺、τ2、 R1及R2)分別沿著路徑η、ρ2、ρ3、ρ4具有由複數個反射單元^至 en)所組成之反射栅gi、G2、G3及G4。 該控制系統11透過-發射轉能器開關ila產生發射信號幻、S2， ©以使該發送信號S卜S2分別傳送至相對應的發射轉謎Ή、T2，致 使該發射特能器ΤΙ、Τ2分別沿著路徑P1、Ρ2而產生傳遞的表面波。 以沿著該路徑P1所產生的傳遞表面波為例，該表面波經反射柵 G1所傳遞的表面波與該路徑pi成45度角發射後分成11個部分並與該 路徑P1成90度角向下傳遞至與該反射栅G1相對向的反射柵⑵，導 致該反射柵G2中之反射單元ei至en將自該反射栅gi所反射出的n 個部分的表面波方向改變，並使改變方向的表面波沿著路徑ρ3傳遞且 到達接收轉能器R1 ’該接收轉能器R1將接收到的表面波能量轉換成 6 201005608 信號S3並輪出至與該控制系㈣電性連接之振幅檢測器仙。另一 方面田該發射轉能器T2接收來自該發射轉能器開關11&所傳來的該 發送信號S2後，致使該發射轉能器T2分別沿著路徑p2而產生傳遞的 表面波’該表面波經反射栅G3所傳遞的表面波與該路徑p2成奶度角 =射後分成η個部分並與該路徑P2成9Q度角向下傳遞至與該反射栅 相對向的反射栅G4，導致該反射栅G4將自該反_⑵所反射出的 η個部分的表面波方向改變，並使改變方向的表面波沿著路徑㈣遞 到她馳R2，麵編R2將接_表面波能量轉換 成㈣S4並輸出至與該控制系㈣電性連接之振幅檢測器心 接著，該振幅檢測器llb對該信㈣、S4進行分析。由於到達該 接收轉能㈣的表面波行經距離的不同，故到達的時問也不同，接收 到的信號S3如第二騎示，_料反射栅G2之反射單元el所反 射的表面_達概轉腿1的叫献料元en所反射 ❹的^面_達婦收概㈣的咖，實線部分為使用者尚未觸碰面 板時的輸出訊號。假設點觸面板的位置如第—圖所示之點Μ，則經反 射栅G1反卿分表面波沿著雜_遞並㈣該關，經路㈣ 二，，分吸收導致輸出信號幻產生衰減的輸出信號 第二騎示，該輸出信號的發生日销鱗問t，由發生的 時間t即可推得個者於水平座標上_碰位置χ，而輸Μ號 深度則與使用者觸碰_力錢。依據此種方式，亦可轉使用者於 垂直座標上的觸碰位置Υ，籍由坐標位置(χ，γ)即可確定㈣的位置。 惟’在此實施例中’由於發射轉能器Τ1、Τ2發射的表面波經由反 7 201005608BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an acoustic wave touch panel system, and more particularly to an acoustic wave touch panel system of a transmitter and a receiver made of a piezoelectric film. [Prior Art] With the popularity of computers, keyboards and mice have become the most accepted information input devices in the general public, but because of their large size, they are not portable and have a slightly complicated and complicated procedure. Another type of input device that is superimposed with the screen-body molding_control panel. The touch panel is a humanized input device that can directly select a specific area on the panel with a finger or a stylus. With the development trend of light, thin, short, small and complicated functions of electronic products, the space for products to be placed into the input device is very limited, and the touch panel can be completely completed; In addition, it can provide a humanized operation mode such as handwriting input, and thus becomes the β optimal _ of the human-machine interface. Difficult to red touch can be divided into miscellaneous, electric slave, optical and surface acoustic wave type, wherein the resistive touch panel has the disadvantage of poor light transmittance, thus reducing the degree of freedom and contrast; The capacitance of the capacitive _ control panel is different from the temperature, humidity or grounding conditions, and the stability is poor. Moreover, the resolution of the optical touch panel is determined by the number of infrared transmitting and receiving pairs. Easy to be restricted. Xin ^The disadvantages of the above touch panel, therefore, the appearance of the surface of the surface acoustic wave touch panel of the surface acoustic wave touch panel can be divided into two 5 201005608 and the other type is array type Hair type: One type is single-transmit-transfer energy-receiving transducer transponder and array receiving transducer. The upper surface is excited by a surface acoustic wave control panel composed of a semi-emission transducer and a single-receiving transducer, and the surface wave is obliquely emitted through a multi-reflector or a specific angle to the edge of the panel. The surface waves passing through different positions of the panel are received at different receiving and receiving transducers, and the position of the panel can be touched by receiving the relationship between the intensity of the signal and the time. U.S. Patent No. 4,644,100, the disclosure of which is incorporated herein by reference in its entirety, the disclosure of the disclosure of the entire disclosure of the disclosure of the disclosure of the disclosure of the disclosure of the disclosure of Figure. As shown in the figure, the system includes a substrate having a pair of transmitting transducers T1 and Τ2 and a pair of receiving transducers and R2' - a control system u electrically connected to the pair of transducers, Each of the transducers (7), τ2, R1, and R2) has reflection grids gi, G2, G3, and G4 composed of a plurality of reflection units ^ to en) along the paths η, ρ2, ρ3, and ρ4, respectively. The control system 11 generates a transmitting signal illusion, S2, © through the -transmitting transducer switch ila, so that the transmitting signal Sb is transmitted to the corresponding transmitting riddle, T2, respectively, so that the transmitting ΤΙ, Τ2 The transmitted surface waves are generated along the paths P1, Ρ2, respectively. Taking the surface acoustic wave generated along the path P1 as an example, the surface wave transmitted by the surface wave through the reflection grating G1 is emitted at an angle of 45 degrees with the path pi, and is divided into 11 parts and at an angle of 90 degrees with the path P1. Passing down to the reflective gate (2) opposite to the reflective gate G1 causes the reflective elements ei to en in the reflective grating G2 to change the surface wave direction of the n portions reflected from the reflective gate gi and change The surface wave of the direction is transmitted along the path ρ3 and reaches the receiving transducer R1'. The receiving transducer R1 converts the received surface wave energy into 6 201005608 signal S3 and rotates to the amplitude of the electrical connection with the control system (4). Detector fairy. On the other hand, the transmitting transducer T2 receives the transmission signal S2 from the transmitting transducer switch 11& and causes the transmitting transducer T2 to generate a transmitted surface wave along the path p2 respectively. The surface wave transmitted by the surface wave through the reflection grating G3 is at a milk angle angle with the path p2 = is divided into n portions after the shot and is transmitted downward at a 9Q angle with the path P2 to the reflection grating G4 opposite to the reflection grating, Leading the reflection grating G4 to change the surface wave direction of the n portions reflected from the inverse _(2), and causing the surface wave changing direction to pass along the path (4) to the R2, and the surface R2 will be connected to the surface wave energy The signal is converted into (4) S4 and output to an amplitude detector core electrically connected to the control system (4). The amplitude detector 11b analyzes the signals (4) and S4. Since the distance of the surface wave reaching the receiving transduction energy (4) is different, the time of arrival is also different, and the received signal S3 is as reflected by the second unit, and the surface reflected by the reflecting unit el of the material reflection grating G2 The leg of the leg 1 is reflected by the 元 面 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Assume that the position of the touch panel is as shown in the first figure, then the surface wave along the reflection grating G1 is along the side of the hybrid, and the passage is (4), and the absorption is caused by the absorption. The output signal is secondly shown, and the output signal is generated by the daily scale t, and the time t that is generated can be pushed on the horizontal coordinate _ touch position χ, and the depth of the input 与 is touched by the user. _power money. According to this method, the user can also transfer the touch position on the vertical coordinate, and the position of (4) can be determined by the coordinate position (χ, γ). However, in this embodiment, the surface wave emitted by the transmitting transducers Τ1, Τ2 is via the reverse 7 201005608
V 射柵G卜G2、G3、G4的η次反射及透射後才到達相應的接收轉能器 、R2 ’導致發射轉能H Ti、Τ2發射的大部分細歧量損失，俾使 輸出信號S3、S4為弱，不利於控制系統U對該輸出信號分析。同時， 為了使經反射柵Gl、G3反射後的η個部分表面聲皮具有相3 θ 導致反射栅的設計及基板10製程變得複雜。 此外，由於表面聲波波速快，且時間t〇與時間切間的時間間隔 亦很短’故需較快速的信號處理速度，從而需使用效能較高的㈣轉 ©換器’由於效能較高的A/D轉價格昂貴，故使賴控面板的成本 大幅增加。反之，若為避免該觸控面板的成本提高，只有犧牲其解析 度。 再者’如第三圖所示之美國專利第3, 673, 327號案，其即揭示另 一類應用陣列式發射轉能器及陣列式接收轉能器之表面聲波式觸控面 板的系統架構。請參閱第三騎統中之觸控面板卽之平板 施兩個相鄰的邊上各設有複數個併排的發射器2ΐ、Μ，該平板施 參另外兩個相鄰的邊且分別盥哕 — 观、该排發射③21、22個別相對向的邊上亦設 複數個併排的接收器23、24 ’該複數個發射器Μ分別與對邊上的 时對向的接收& 23相對應’該發射器22分別與對邊上的—對向接收 器24相對應。該發射哭？〗、的、 、2为別產生沿著X、Y軸橫越該觸控面板 =爾鱗波25、26，以在該平板施上形成—探測矩陣。 u閱第_’係為在該觸控秘卻上施加表面波之剖面視圖。 如圖所示，該發射考力 °系由—壓電晶體21a及一合成透明樹脂21b ’該接收器23係由―霍電晶體伽及一合成透明樹脂娜構成。 8 201005608 ψ 在操作時，驅動器27將電信號傳遞至該壓電晶體21a產生震動，使該 合成透明樹脂21b產生表面聲波28並沿著該平板2〇3傳到另一端的合 成透明樹脂23b以產生震動，該壓電晶體23a將震動轉變為電信號傳 至接收器23，再經信號檢測器29傳入。控制系統3〇進行信號分析處 理。當使用者點觸該平板時，會阻礙在該平板上傳遞的表面波25、26， 亦即表面波的能量會被吸收，由此使該控制系統3〇計算出使用者的點 觸位置。 © 惟，此種應用陣列式發射轉能器及陣列式接收轉能器所構成的觸 控面板，將使觸控面板的構造較為複雜，且該觸控面板的解析度與信 號的刀析處理方法息息相關。且該觸控面板之解析度與該轉能器設置 間距相同，故，在製程技術成本的限制下，無法獲得高解析度的產品。 因此，如何提供一種可提高解析度及處理速度之表面聲波式觸控 面板系統，俾可避免習知技術之缺失實以成為目前業界亟待解決之難 題。 、V yoke G G G2, G3, G4 η reflection and transmission before reaching the corresponding receiving transducer, R2 'induced most of the fine dislocation loss of the emission energy transfer H Ti, Τ 2 emission, so that the output signal S3 S4 is weak, which is not conducive to the control system U analyzing the output signal. At the same time, in order to make the n partial partial surface acoustic skins reflected by the reflective gratings G1 and G3 have a phase 3 θ, the design of the reflective grating and the process of the substrate 10 become complicated. In addition, since the surface acoustic wave velocity is fast and the time interval between time t〇 and time cut is also short, a relatively fast signal processing speed is required, so that a higher efficiency (four) converter is required. The A/D conversion price is expensive, so the cost of the control panel is greatly increased. On the other hand, if the cost of the touch panel is increased, only the resolution is sacrificed. In addition, as shown in the third figure, U.S. Patent No. 3,673,327, which discloses another system architecture for a surface acoustic wave touch panel using an arrayed emission transducer and an array receiving transducer. . Please refer to the touch panel of the third riding system. The two adjacent sides are provided with a plurality of side-by-side transmitters 2ΐ and Μ, and the flat plate is applied to the other two adjacent sides and respectively - a plurality of side-by-side receivers 23, 24 are also provided on the opposite sides of the row of emitters 321 and 22. The plurality of emitters 相对 correspond to the time-dependent reception & 23 on the opposite side respectively. The emitters 22 correspond to the opposite receivers 24 on opposite sides, respectively. The launch is crying? 〖, 、, 2 are generated across the X, Y axis across the touch panel = squaring waves 25, 26 to form a detection matrix on the plate. u read the _' is a cross-sectional view of the surface wave applied to the touch. As shown in the figure, the emission test is composed of a piezoelectric crystal 21a and a synthetic transparent resin 21b'. The receiver 23 is composed of a "Huodian crystal" and a synthetic transparent resin. 8 201005608 ψ In operation, the driver 27 transmits an electrical signal to the piezoelectric crystal 21a to generate a vibration, so that the synthetic transparent resin 21b generates a surface acoustic wave 28 and passes along the flat plate 2〇3 to the synthetic transparent resin 23b at the other end. The vibration is generated, and the piezoelectric crystal 23a converts the vibration into an electric signal to the receiver 23, and then passes through the signal detector 29. The control system 3 performs signal analysis processing. When the user touches the plate, the surface waves 25, 26 transmitted on the plate are blocked, i.e., the energy of the surface wave is absorbed, thereby causing the control system 3 to calculate the user's point of contact. © However, the touch panel composed of the arrayed emission transducer and the array receiving transducer will make the structure of the touch panel more complicated, and the resolution and signal processing of the touch panel The method is closely related. Moreover, the resolution of the touch panel is the same as the pitch of the transducer, so that a high-resolution product cannot be obtained under the limitation of the process technology cost. Therefore, how to provide a surface acoustic wave touch panel system which can improve the resolution and processing speed, and avoid the lack of the prior art, has become an urgent problem to be solved in the industry. ,
【發明内容】 雲於上述f知技狀缺點，本發明之_目的在於提供—種可提 南解析度及處理速度之聲波式觸控®板系統。 —目的在於提供—聽程鮮之聲波式觸控面板 系統。 為達上述及其他目的，本發明提供-鱗波式觸控面板，該觸 控面板包括-平板，且該平板表面兩懈_邊緣上形成至少有—第 9 201005608 一、第二發射器，該平板表面與設有該第一及第二發射器之邊緣的 對向祕上亦分卿成至少有第第二及第三接收器，以分別接 收來自第一及第一發射器所傳來的信號，其中，該接收器與發射器 數量關係係為多對多、多對一及一對多知其中一者。 本發明亦提供一種具該聲波式觸控面板系統，其系統包括上述 之聲波式觸控面板；-輸入/輸出控制單元’係使用分時多工掃描 Ο 方式激發該第一及第一發射器發射一表面聲波，並以分時多工方式 拾取經該第…第二及第三接收器接收第—及第二發射器所發射出 的表面聲波*產生之電健，且當使时關該平板上的特定位置 時，行經該位置的表面聲波受到阻擋致使能量被部分吸收，從而使 輸出電信號的振幅衰減；—肋透過減法麟該第…第二及第三 接收器所輸ίϋ的電信號進行處理讀出震幅衰_信號之訊號處 理單元。 目此，本發明之聲波式觸控面板具有訊號處理速度快，觸控面 板解析度高等優點，同時，使得該聲波式觸控面板製程容易、結構 間早與成本降低。 【實施方式】 以下係藉由特定的频賴朗本發狀實财式，麟此技藏 ，人士可由本制書所揭示之邮輕祕瞭解本發明之其他優點與功 效本發明亦可藉由其他不同的具體實例加以施行或應用，本說明書 中的各項㈣亦可基於柯細朗用，在稍離本發明之精神 4亍各種修飾與變更。 201005608 明參閱第五圖’其係為本發明之聲波式觸控面板第一實施例 之上視圖。如®所示，本發明之表面聲波朗控面細係由一具有兩 個發射器32a、3213及三個接收器33a、娜、版的平板幻所組成。 該平板31係為-玻璃材料製成的薄板，其可為透明的玻璃平 板;該兩個發射器32a、32政三個接收器33a、33b、版係利用壓電薄 膜的製作技術形成於該平板31表面上，其中，該發射器版係以正中央 之位置位於該平板31之邊賴a上，城魏||32b雜正巾央之位置 ©位於與該邊賴__邊緣她上，且該邊賴晴⑽邊賴c角落 上亦形成兩個接收器33a、33b，而該邊緣施對向的邊緣_角落上亦 形成兩個接收器33b、33c，藉此結構提供一種具有兩個發射器伽、伽 與二個接收器33a、33b、33c的觸控面板。 叫參閱U ’其係為應用本發明之聲波式觸控面機之系統的 第-實施例。如圖所示，該系統包括一聲波式觸控面板幻、一輸入/ _輸出I/O控鮮元35、-檢測單元36及—訊聽理單元37。 絲崎波式·面板_整合於—顯示裝置（在此未予圖示） 内’其形成方式即如上述第五圖所示之聲波式觸控面板3〇。為簡化說 明，故在此將不為文贅述。 »亥1/0控制單兀35係以分時多工掃描方式激發兩個發射器伽娜 中之每-發射器發射-表面聲波，且由該數個接收器撕、咖、33c 刀別接收該兩數個發射器32a、32b所發射的經該平板30傳遞之表面聲 波，並將其所接收到的表面聲波轉換為電信號輸出。 該檢測單元36係用以拾取各接收器33a、33b、33c所輸出的電信 201005608 % 號，並進行信號放大處理。由於該各接收器33a、33b、33c所輸出的電 信號係屬高頻信號’例如2〇mHz的載波信號，為供該訊號處理單元37 對各接收器33a、33b、33c所傳來的電信號進行解調等後續處理，則需 對該電信號進行放大處理。 該訊號處理單元37係以減法器對該檢測單元36所放大的信號進 行處理。其中該信號處理單元37復包括-解雛組38、一A/D轉換模組 39及-演算模組40。該聲波式觸控面板3〇的解析度係依據該接收器 © 33a、33b、33c的數目與減法器架構而定。 該接收器33a、33b、33c數目無需與該發射器32a、32b數目相等。 如圖所示，為簡單說明本發明之特徵，僅圖示出—個發射器以說明以 -維置中排歹⑽發射器32a’且以一個發射器以說明以一維置中排列的 發射器32b ’又以兩個接收器說明以一維陣列排列的接收器咖、娜， 並再以兩健收器說明-維陣列排列的接收器咖、33c，同時定義邊 緣34a所在方向為Y軸’邊緣34d所在方向為冰，在此織出說明的是， ©此Y減X軸的定義方式麟舰賊，脚，端視實_態而定。 該I/O控制單元35以-信號si可同時或多工地激發該發射器 32b ’致使該發射器32b激發出-表面聲波，以一信號s2可同時或多工 地激發該發射器32a，致使該發射器32a激發出一表面聲波。而該接收 器33a、33b係各別接收該發射器32b所激發出的表面聲波，並分別輸出 電信號f2、f3，且該接收測b、33c亦各別接收該發射器撕所激發出 的表面聲波，並分別輸出電信號f i、f2。 且該檢測單元36即對各接收器33a、33b、33c所輸出的電信號進行 12 201005608 * 信號放大處理，並將放大後的電信號傳送至該訊號處理單元37。再者， 第六圖而言，由於該觸控面板3〇兩相鄰邊緣分別所設之接收器3如、 33b、33c數量為多個，故本實施例之檢測單元祁復具有分時多工處理， 並可依據該I/O控制單元35所傳來的信號S3及信號S4 一次或分次接收 經所有接收器33a、33b、33c對該發射器32a及發射器32b所傳來的表面 聲波進行轉換處理後所傳來的電信號⑴至⑶，其中該檢測單元36所 提供的分時多工處理效能係依據硬體資源而達到不同的設計需求。 ❹ 肖解難組38鱗值檢财式對驗解元騎放大處理後的 電k號（fl至f3)進行解調處理。由於該觸控面板3〇所設之接收器 (33a、33b、33c)數量為多個，故經該解調模組38所處理後的峰值信號 則相對具有多個，且依該平板31被觸壓的情況，而使各接收器（3如、 33b、33c)接收不同程度來自各發射器（32a、32b)所發射的表面聲波。 如圖所示，該信號(31及32)激發各發射器（32a、32b)以產生沿該平板 31表面之表面聲波，當使用者點觸該平板31上之點時，使部分表面聲 ©波能量被吸收’並令該檢測單元36依據信號(s3As4)接收經各接收器 (33a、33b、33c)對該發射器32a發射器32b所傳來的表面聲波進行轉換 處理後所輪出的電信號（fl至⑶，以令該解調模組38根據該檢測單元 36放大處理後所得的複數組電信號(^至打）而檢出不同峰值，就本實 施例而言，由於該接收器（33a、33b、33c)的數量為3個，則將輸出3 組電信號(F1至F3) ’且需對各組電信號以至⑺）進行峰值檢出處理，之 後透過該A/D轉換模組39對檢出的峰債進行取樣處理以轉換並取得各 組峰值所對應之數位信號，其中每取一次則產生一組數位碼，而該產 13 201005608 生的數位碼即可儲存於-記職置(在縣抑岐其例如疆等記 憶裝置）中―’得以供該演算模組娜據儲存於該記憶装置中的數位碼以 減法器計算出該平板31_壓處之點位置。在此須提出的是，該 演算模組撕彳用減法器確定闕位置之顧、錢係—般熟知減法器 者所習用，故在此將不予贅述。 本實施例之面板3G _接收信舰奴及郎（因本實施例面板 30之兩相鄰邊緣上分別設有多個接收器）的關係並由減法器計算該面 ©板30被觸壓之位置。 上述第六圖所示之觸控面板之兩相鄰邊緣上分別設有多個接器， 故經該解調模組所處理後的峰值信號則相對為多，則可依據實際觸控 狀態而檢出不同接收器輸出信號的峰值，對這些不同輸出信號峰值取 樣、轉換及儲存處理’由演算她針對所齡之獨輸出信號峰值及 其相對應接收ϋ所在位置，以減法器之方式更精確地侧出該面板被 觸壓之位置。 ❹ 林發明中，採用分時多工掃描方式控制數個發射器及接收器， 故可各別控制發射賊發射出絲面聲触時序與持_問，以及控 制拾取各個接收器所輸出信號的延遲時問，故，在訊號處理過程中， 無須使聽理速度快的A/D轉換器；再者，由於透過減法器的運算方 式，即便設於該觸控面板側邊的發射器或接收器數量為單一個時，亦 可判斷出觸控點的位置’從而降低觸控面板之產品成本。此外，本發 明之表面聲波式觸控面板及其系統於訊贼理過程相採用減法器， 俾可提高喊歧錢及财面_減。上述實細制示性說明 201005608 本發明之原觀其功效，而_於_本發 均 違背 卜 任何熱習此項技藝之 改變。因此，本發狀侧顧^切魏_行修飾與 乾圍應如叙之中請專利範圍所列。 【圖式簡單說明】 第-圖係為習知表面聲波式觸控面板系統之架構圖； 第二圖係為第-圖中之接收轉能輸出信號幻之時問—振幅圖 〇 第二圖係為習知表面聲波式觸控面板之上視圖； 第四圖係為在第三圖所示的觸控面板上施加表面波之剖面視圖； 第五圖係為本發明之聲波式觸控面板第一實施例之上視圖； 第六圖係為本發明之聲波式觸控面板之系統架構圖； 【主要元件符號說明】 10 :基板 ❹11 :控制系統 lib :振幅檢測器 30 :聲波式觸控面板 31 :平板 32a、32b :發射器 33a、33b、33c :接收器 34a、34b、34c、34d :邊緣 35 : I/O控制單元 15 201005608 ♦ 36 :檢測單元 37 :訊號處理單元 38 :解調模組 39 : A/D轉換模組 40 :演算模組 20 :觸控面板 20a :平板 © 21、22 :發射器 21a、23a :壓電晶體 21b、23b :合成透明樹脂 23、24 :接收器 25、26、28 :表面聲波 27 :驅動器 29 :信號檢測器 ❹el、en :反射單元 A1 :點處位置 fl、f2、f3 :輸出信號 Gl、G2、G3、G4 :反射柵 PI、P2、P3、P4、Ph、Pv :路徑 R1、R2 ··接收轉能器 T1、T2 :發射轉能器 16SUMMARY OF THE INVENTION The present invention is directed to providing an acoustic wave touch panel system that provides improved resolution and processing speed. - The purpose is to provide a sound-sensitive touch panel system. In order to achieve the above and other objects, the present invention provides a scale-type touch panel, the touch panel includes a flat panel, and the surface of the flat panel has at least one of the 9th 201005608 first and second emitters. The surface of the flat plate and the opposite side of the edge of the first and second emitters are also divided into at least second and third receivers for receiving the signals from the first and first emitters, respectively. The signal, wherein the number of receivers and transmitters is one of many-to-many, many-to-one, and one-to-one. The present invention also provides a sonic wave touch panel system, the system comprising the above acoustic wave touch panel; the input/output control unit 'exciting the first and first emitters by using a time division multiplexing scan method Transmitting a surface acoustic wave and picking up the electric shock generated by the surface acoustic wave* emitted by the second and third receivers by the second and third receivers in a time division multiplexing manner, and when When a specific position on the plate is blocked, the surface acoustic wave passing through the position is blocked, so that the energy is partially absorbed, thereby attenuating the amplitude of the output electrical signal; the rib passes through the subtraction of the second and third receivers. The signal is processed to read the signal processing unit of the amplitude attenuation_signal. Therefore, the acoustic wave touch panel of the present invention has the advantages of fast signal processing speed and high resolution of the touch panel, and at the same time, the acoustic wave touch panel process is easy, the structure is early, and the cost is reduced. [Embodiment] The following is a specific method of using the singularity of the present invention, and the present invention can also be understood by the inventors of the present invention. Various other specific examples are exemplified or applied, and the various items (4) in the present specification may also be used in accordance with the spirit of the present invention, and various modifications and changes may be made in the spirit of the invention. 201005608 Referring to the fifth figure, which is a top view of the first embodiment of the acoustic wave touch panel of the present invention. As shown in the ®, the surface acoustic wave control surface of the present invention consists of a flat panel with two emitters 32a, 3213 and three receivers 33a, Na, and Edition. The flat plate 31 is a thin plate made of a glass material, which may be a transparent glass flat plate; the two emitters 32a, 32 are three receptacles 33a, 33b, and the plate is formed by using a piezoelectric film manufacturing technique. On the surface of the flat plate 31, wherein the emitter plate is located at the center of the flat plate 31 on the side of the flat plate 31, and the position of the city Wei||32b miscellaneous towel is located on the edge of the edge __ And the two sides of the edge of the edge of the lap (10) also form two receivers 33a, 33b, and the edges of the edge of the opposite edge _ corner also form two receivers 33b, 33c, thereby providing a structure with two The transmitter gamma, the gamma and the touch panels of the two receivers 33a, 33b, 33c. Referring to U', it is a first embodiment of a system for applying the acoustic wave touch panel machine of the present invention. As shown, the system includes an acoustic touch panel, an input/output I/O control unit 35, a detection unit 36, and a hearing unit 37. The silk screen type panel is integrated in a display device (not shown here). The sound wave type touch panel 3A shown in the fifth figure is formed. In order to simplify the description, it will not be described here. »Hai 1/0 control unit 兀35 series excites each of the two transmitters gamma in a time-division multiplexed scanning mode - the emitter emits a surface acoustic wave, and is torn by the several receivers, coffee, 33c The surface acoustic waves transmitted by the two-numbered emitters 32a, 32b through the flat plate 30 convert the surface acoustic waves received therefrom into electrical signal outputs. The detecting unit 36 is configured to pick up the telecommunications 201005608% output by each of the receivers 33a, 33b, 33c and perform signal amplification processing. Since the electrical signals output by the receivers 33a, 33b, and 33c are high-frequency signals ', for example, a carrier signal of 2 〇 mHz, the signals are transmitted from the signal processing unit 37 to the receivers 33a, 33b, and 33c. After the signal is subjected to subsequent processing such as demodulation, the electrical signal needs to be amplified. The signal processing unit 37 processes the signal amplified by the detecting unit 36 by a subtractor. The signal processing unit 37 includes a defying group 38, an A/D conversion module 39, and a calculus module 40. The resolution of the acoustic touch panel 3 is based on the number of receivers © 33a, 33b, 33c and the subtractor architecture. The number of receivers 33a, 33b, 33c need not be equal to the number of transmitters 32a, 32b. As shown, for simplicity of description of the features of the present invention, only one transmitter is illustrated to illustrate the arrangement of the emitters (10) emitters 32a' in a one-dimensional arrangement and one emitter to illustrate the arrangement of one-dimensional alignments. The device 32b' further uses two receivers to describe the receivers and sina arranged in a one-dimensional array, and then uses two receivers to illustrate the receiver array of the array array, 33c, and defines the direction of the edge 34a as the Y axis. 'The direction of the edge 34d is ice. The weaving here shows that the definition of this Y minus X axis depends on the thief, the foot, and the end view. The I/O control unit 35 can simultaneously or multiply the emitter 32b' with the -signal si to cause the emitter 32b to excite the surface acoustic wave, and the signal 32 can simultaneously or multiply the emitter 32a with a signal s2, causing the The emitter 32a excites a surface acoustic wave. The receivers 33a, 33b respectively receive the surface acoustic waves excited by the transmitter 32b, and respectively output the electrical signals f2, f3, and the receiving measurements b, 33c also respectively receive the excitation of the transmitter. Surface acoustic waves, and output electrical signals fi, f2, respectively. The detecting unit 36 performs 12 201005608 * signal amplification processing on the electrical signals output by the respective receivers 33a, 33b, 33c, and transmits the amplified electrical signals to the signal processing unit 37. In addition, in the sixth embodiment, since the number of the receivers 3, 33b, and 33c respectively disposed on the two adjacent edges of the touch panel 3 is plural, the detection unit of the embodiment has a plurality of time divisions. Processing, and receiving the surface of the transmitter 32a and the transmitter 32b via all the receivers 33a, 33b, 33c in one or several times according to the signal S3 and the signal S4 transmitted from the I/O control unit 35. The electrical signals (1) to (3) transmitted after the sound wave is converted, wherein the time-division multiplexing processing performance provided by the detecting unit 36 meets different design requirements according to hardware resources. ❹ Xiao Jie difficult group 38 scale value check type Demodulation processing is performed on the electric k number (fl to f3) after the yuan riding amplification processing. Since the number of the receivers (33a, 33b, 33c) provided in the touch panel 3 is plural, the peak signals processed by the demodulation module 38 are relatively large, and the panel 31 is In the case of contact pressure, each receiver (3, 33b, 33c) receives surface acoustic waves emitted from different emitters (32a, 32b) to varying degrees. As shown, the signals (31 and 32) excite each of the emitters (32a, 32b) to produce a surface acoustic wave along the surface of the plate 31, which causes a partial surface sound when the user touches the point on the plate 31. The wave energy is absorbed' and the detection unit 36 receives the rotation of the surface acoustic wave transmitted from the transmitter 32a of the transmitter 32a via the respective receivers (33a, 33b, 33c) according to the signal (s3As4). The electrical signals (fl to (3) are used to cause the demodulation module 38 to detect different peaks according to the complex array electrical signals (^ to hit) obtained by the amplification of the detecting unit 36. In this embodiment, due to the receiving The number of the devices (33a, 33b, 33c) is three, and three sets of electrical signals (F1 to F3) are outputted, and peak detection processing is required for each group of electrical signals and (7), and then the A/D conversion is performed. The module 39 samples the detected peak debts to convert and obtain the digital signals corresponding to the peaks of each group, wherein each time a digital code is generated, and the digital code generated by the product 13 201005608 can be stored in the - Recording in the office (in the county to suppress its memory devices such as Xinjiang) - "can be used for the performance The calculation module calculates the point position of the flat plate 31_ by the subtractor based on the digital code stored in the memory device. It should be mentioned here that the calculus module uses a subtractor to determine the position of the 、, and the money is generally used by the subtractor, and therefore will not be described here. The panel 3G of the present embodiment receives the relationship between the ship slaves and the lang (since two adjacent receivers on the adjacent edges of the panel 30 of the embodiment), and the subtractor calculates that the face plate 30 is pressed. position. The two adjacent edges of the touch panel shown in FIG. 6 are respectively provided with a plurality of connectors, so that the peak signals processed by the demodulation module are relatively large, and the actual touch state can be determined according to the actual touch state. The peak values of the output signals of different receivers are detected, and the peak sampling, conversion and storage processing of these different output signals is calculated by calculating the peak value of the output signal and the position of the corresponding receiving 所 of the age, which is more accurate in the manner of the subtractor. The ground side is where the panel is pressed. In the invention of the ❹林, the time-division multiplex scanning method is used to control several transmitters and receivers, so that the thief can be individually controlled to emit the silk surface acoustic touch timing and the _Q, and the control of the output signals of the respective receivers can be controlled. Delay time, therefore, in the signal processing process, there is no need to make the A/D converter with fast hearing speed; in addition, due to the operation method of the subtractor, even the transmitter or receiver located on the side of the touch panel When the number of devices is single, the position of the touch point can also be determined, thereby reducing the product cost of the touch panel. In addition, the surface acoustic wave type touch panel of the present invention and the system thereof use a subtractor in the process of the thief, which can improve the screaming of money and the financial situation. The above-mentioned detailed description of the invention 201005608 The original effect of the present invention, and _ _ this issue is contrary to any change in the skill of the art. Therefore, the hairline side of the haircuts, the Wei _ line modification and the dry circumference should be listed in the scope of the patent. [Simple diagram of the diagram] The first diagram is the architecture diagram of the conventional surface acoustic wave touch panel system; the second diagram is the time of the reception transduction output signal in the first diagram - the amplitude diagram 〇 the second diagram The view is a top view of a conventional surface acoustic wave touch panel; the fourth figure is a cross-sectional view of applying a surface wave on the touch panel shown in FIG. 3; the fifth figure is the acoustic wave touch panel of the present invention. The first embodiment is a top view; the sixth figure is a system architecture diagram of the acoustic wave touch panel of the present invention; [Main component symbol description] 10: substrate ❹ 11 : control system lib : amplitude detector 30 : acoustic wave touch Panel 31: Flat plates 32a, 32b: Transmitter 33a, 33b, 33c: Receiver 34a, 34b, 34c, 34d: Edge 35: I/O control unit 15 201005608 ♦ 36: Detection unit 37: Signal processing unit 38: Demodulation Module 39: A/D conversion module 40: calculus module 20: touch panel 20a: flat panel © 21, 22: emitter 21a, 23a: piezoelectric crystal 21b, 23b: synthetic transparent resin 23, 24: receiver 25, 26, 28: Surface Acoustic Wave 27: Driver 29: Signal Detector ❹el, en: Reflection unit A1: Point position fl, f2, f3: Output signals G1, G2, G3, G4: Reflection grids PI, P2, P3, P4, Ph, Pv: Paths R1, R2 ·· Receive transducers T1, T2 : Transmitter Transducer 16