201232355 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種感應裝置，特別關於一種用以感應 大尺寸觸控面板之感應裝置。 【先前技術】 電子顯示器被廣泛應用於生活的各個層面。以往電子 顯示器主要被應用於電腦相關的領域，例如做為桌上型電 腦或筆記型電腦的螢幕。然而，近年來電子顯示器開始被 應用於許多不同的電子產品。例如，電子顯示器已常見於 應用在遊戲機、自動導航系統、手持電子記事本、或其它 裝置等。 互動型的顯示器裝置通常包含可感應觸碰行為的感測 螢幕，例如一觸控面板。如今，將觸控面板整合於可攜式 多媒體電子裝置已經越來越普遍。隨著觸控面板的尺寸擴 大，經由用以偵測觸碰事件的觸碰感應積體電路(integrated circuits，簡稱1C)所感應到的資料也會跟著增加。然而，用 以傳輸感應資料的傳輸線的資料吞吐量有限。例如，對於 一解析度為40*25的觸控面板，數位感應資料的資料傳輸 速率為40(X軸）*25(Y軸）*60(掃描速率）*16(數位至類比轉 換器之解析度）=960Κ位元/秒。然而，内部整合電路 (Inter-Integrated Circuit，簡稱I2C)介面的最大傳輸速率僅 有400K位元/秒。如此一來，内部整合電路的傳輸速率便 不足以應用於傳送大尺寸觸控面板的感應資料。 201232355 因此’需要-種適用於大尺寸觸控面板之全新的感應 裝置。 【發明内容】 根據本發明之-實施例，一種感應裝置，用以感應一 觸控面板，包括觸碰感應器與觸碰控彻。觸碰感應器用 以感應觸控面板之觸碰事件，以產生代表觸控面板上之複 數像素之錢、值之㈣㈣，錢―步過職始資料以產 生過遽過的資料’其中職過的資料的資料量小於原始資 ^的資料量。觸碰控制器用以自觸碰感應器接收過濾過的 身料’並且處理過遽過的資料，以決定觸控面板上觸碰事 件所發生的位置。 根據本毛明之另一實施例，一種感應模組，用以感應 觸控面板，包括複數觸碰感應^，各用以感應該觸控面 反之觸碰事件並且包括感應元件、類比至數位轉換器與 L號處理單元。感應元件用以感應觸碰事件，以產生觸控 面板之複數像素所對應的感應值。類比至數位轉換器用以 將感應^類比形式轉換為數位形式，以產生代表感應值 之=始資料。信號處理單元用以處理原始資料，並且將原 始二料中具麵應值小於-既定臨界值之-部分過渡掉， 以得到過《、過的資料，其中過濾過的資料的#料量小 始資料的資料量。 、 根據本發明之另一實施例，一種感應模組，用以感應 觸控面板，包括複數觸碰感應器，各用以感應觸控面板 201232355 之觸碰事件，以產生代表觸控面板上之複數像素之感應值 之原始資料，並進一步過濾原始資料以產生過濾過的資 料。其中過濾過的資料的資料量小於原始資料的資料量， 並且觸碰感應器之一者更自其它觸碰感應器接收過濾過的 資料，並處理過濾過的資料，以決定觸控面板上觸碰事件 所發生的位置。 【實施方式】 為使本發明之製造、操作方法、目標和優點能更明顯 易κ，下文特舉幾個較佳實施例，並配合所附圖式，作詳 細說明如下： 實施例： 弟 圓你顯不很據本發明之一實施例所述之顯示系統 方塊圖。顯不系統1GG包括-觸控面板1G1以及用以感應 觸控面板1G1之觸碰事件之—感應裝置。錢裝置可包括 -感應模組與-觸碰控彻1G3。感應模組可包括 個觸碰感應器购至1G2_N，其中N為正整數。在 =之-實_中’當觸控岐1G1 # —大尺寸觸控面板 時，多個觸碰感應器可如第1圖所示_至驗面板1()1， 刀別用以感應。卩》的像素。例如，兩觸碰感應器可串聯 在-起，用以感應觸控面板1(n，其中—者可用以感應位 於觸控面板101右半邊的褚本 … 締权…一： 素’而另一者可用以感應位於 ，控面板ΗΠ左+邊的像素。值得注意的是，在 其它貫_，觸碰絲器的數量_財式可隨系統需求 201232355 彈性設計’因此本發明並不限於使用如第1圖所示之數量 與耦接方式。 根據本發明之一實施例，觸碰感應器102-1至102_N 可用以感應觸控面板101之複數觸碰事件，用以產生代表 觸控面板101上之複數像素所對應之感應值之原始資料 (raw data)。值得注意的是，以往觸碰感應器僅可感應觸碰 事件’並直接將原始資料傳送至用以處理原始資料之主機 觸碰控制器’以決定出觸控面板上觸碰事件所發生的位 • 置。然而’如上述，隨著觸控面板的尺寸成長，由觸碰感 應器所感應到的感應資料量也會增加’甚至超過耦接於觸 碰感應器與觸碰控制器之間用以傳輸原始資料的傳輪介面 的最大吞吐量(throughput)。為了解決此問題，在本發明之 實施例中，觸碰感應器1〇2-1至102-N可進一步過遽原始 資料，以產生過濾過的資料。根據本發明之一實施例，過 濾過的資料可僅包括原始資料中具有感應值大於一既定臨 界值的部分。既定臨界值可被適當的選擇，用以在過濾後 籲準確地保留真正被觸碰的像素點資料（例如，如第4圖所示 之像素群組401、402、403與404的資料）。因此，過濾過 的資料的資料量可大幅縮減（即，少於原始資料的資料 量）。此外’觸碰控制器1〇3(以下段落將有詳細介紹）之儲 存裝置301的緩衝器大小也可有效降低，並且觸碰控制器 103 之微處理單元（micr〇 c〇ntr〇Her unit，MCU)302 也可採 用通用型微處理單元即可，如此一來，感應裝置的整體成 本也可有效降低。 第2圖係顯示根據本發明之一實施例所述之觸碰感應 201232355 器方塊圖。觸碰感應器102包括感應元件201、類比至數 位轉換器202、信號處理單元203與雜訊濾波器204。感應 元件201用以感應觸碰事件，以產生各像素所對應的感應 值。舉例而言，觸碰感應器之一者（例如，觸碰感應器102-1) 可用以將偵測信號一個接著一個依序輸出至所有掃描線， 而所有的觸碰感應器可根據偵測信號感應對應之掃描線上 的像素的電容或電阻值。在得到感應值後，類比至數位轉 換器202將感應值由類比形式轉換為數位形式，以產生代 表感應值之原始資料。雜訊濾波器204可將原始資料中具 有感應值小於一既定臨界值之一部分過濾掉。信號處理單 元203進一步處理過濾過的資料，並且將過濾過的資料傳 送至觸碰控制器103。值得注意的是，在本發明之一些實 施例中，雜訊濾波器204可整合於信號處理單元203。換 言之，也可由信號處理單元203執行感應值之過濾，因此 本發明並不受限於任何特定的架構。 參考回第1圖，觸碰控制器103可自觸碰感應器 102-1〜102_N接收過濾過的資料，並且處理過濾過的資料， 用以精確地決定觸控面板上觸碰事件所發生的位置。例 如，觸碰控制器103可自如第4圖所示之像素群組401、 402、403與404中辨識出被使用者的指尖所觸碰的像素 點。觸碰控制器103可包括儲存裝置301，用以儲存接收 到的過濾過的資料，而微處理單元302用以處理接收到的 過濾過的資料，以辨識出觸碰事件所發生的位置。 根據本發明之一實施例，觸碰感應器與觸碰控制器可 分別實作為獨立的晶片。然而，根據本發明之另一實施例， 201232355201232355 VI. Description of the Invention: [Technical Field] The present invention relates to an inductive device, and more particularly to an inductive device for sensing a large-sized touch panel. [Prior Art] Electronic displays are widely used in all aspects of life. In the past, electronic displays were mainly used in computer-related fields, such as screens for desktop computers or notebook computers. However, in recent years, electronic displays have begun to be applied to many different electronic products. For example, electronic displays have been commonly used in gaming machines, automatic navigation systems, handheld electronic notebooks, or other devices. Interactive display devices typically include a sensing screen that senses the touch behavior, such as a touch panel. Today, it is becoming more and more common to integrate touch panels into portable multimedia electronic devices. As the size of the touch panel expands, the data sensed by the touch sensitive integrated circuits (1C) for detecting touch events will also increase. However, the data throughput of transmission lines used to transmit inductive data is limited. For example, for a touch panel with a resolution of 40*25, the data transfer rate of digital sensing data is 40 (X-axis) * 25 (Y-axis) * 60 (scan rate) * 16 (analysis of digital to analog converter) Degree) = 960 units/second. However, the maximum transmission rate of the Inter-Integrated Circuit (I2C) interface is only 400K bits/second. As a result, the internal integrated circuit does not have a transmission rate sufficient for transmitting sensitive data of a large touch panel. 201232355 Therefore, there is a need for a new type of sensing device for large-size touch panels. SUMMARY OF THE INVENTION According to an embodiment of the present invention, an inductive device for sensing a touch panel includes a touch sensor and a touch control. The touch sensor is used to sense the touch event of the touch panel to generate money (4) (4) representing the plural pixels on the touch panel, and the money-step-by-step data is used to generate the data that has passed through. The amount of data of the data is less than the amount of data of the original source. The touch controller is used to receive the filtered body from the touch sensor and process the pasted data to determine the location of the touch event on the touch panel. According to another embodiment of the present invention, an inductive module is used for sensing a touch panel, including a plurality of touch sensors, each for sensing a touch surface and a touch event and including an inductive component, an analog to digital converter. Processing unit with L. The sensing component is configured to sense a touch event to generate a sensing value corresponding to a plurality of pixels of the touch panel. Analog to digital converters are used to convert the analog analog form to digital form to generate the initial data representing the sensed value. The signal processing unit is configured to process the original data, and the part of the original two materials having a face value less than a predetermined threshold value is transferred to obtain the data of the past, and the quantity of the filtered data is small. The amount of information on the data. According to another embodiment of the present invention, an inductive module is used to sense a touch panel, and includes a plurality of touch sensors, each of which is used to sense a touch event of the touch panel 201232355 to generate a representative touch panel. The raw data of the sensing values of the plurality of pixels, and further filtering the original data to generate filtered data. The amount of data of the filtered data is smaller than the amount of data of the original data, and one of the touch sensors receives the filtered data from other touch sensors, and processes the filtered data to determine the touch on the touch panel. The location where the event occurred. [Embodiment] In order to make the manufacturing, operation method, object and advantages of the present invention more obvious and easy to κ, several preferred embodiments are hereinafter described in detail with reference to the accompanying drawings. You are not quite a block diagram of a display system in accordance with an embodiment of the present invention. The display system 1GG includes a touch panel 1G1 and an inductive device for sensing a touch event of the touch panel 1G1. The money device can include - a sensing module and a touch control 1G3. The sensing module can include a touch sensor purchased to 1G2_N, where N is a positive integer. When the touch panel 1G1 # is a large touch panel, the plurality of touch sensors can be as shown in Fig. 1 to the panel 1 (), and the knife is used for sensing.卩 》 pixels. For example, the two touch sensors can be connected in series to sense the touch panel 1 (n, wherein - the one can be used to sense the transcript located on the right half of the touch panel 101... 权 ... one: prime' and the other It can be used to sense the pixels located on the left side of the control panel. It is worth noting that in other ways, the number of touch gauges can be flexibly designed according to the system requirements 201232355. Therefore, the present invention is not limited to use. The number and the coupling manner shown in Fig. 1. According to an embodiment of the invention, the touch sensors 102-1 to 102_N can be used to sense a plurality of touch events of the touch panel 101 for generating the representative touch panel 101. The raw data of the sensing value corresponding to the plurality of pixels. It is worth noting that the previous touch sensor can only sense the touch event' and directly transfer the original data to the host touch for processing the original data. The controller 'determines the position of the touch event on the touch panel. However, as described above, as the size of the touch panel grows, the amount of sensed data sensed by the touch sensor increases. Even more than The maximum throughput of the transfer interface between the touch sensor and the touch controller for transmitting the original data. To solve this problem, in the embodiment of the present invention, the touch sensor 1〇2 -1 to 102-N may further pass the original data to generate filtered data. According to an embodiment of the present invention, the filtered data may only include a portion of the original data having an induced value greater than a predetermined threshold. The threshold value can be appropriately selected to accurately retain the actually touched pixel point data (for example, the data of the pixel groups 401, 402, 403, and 404 as shown in FIG. 4) after filtering. The amount of data of the filtered data can be greatly reduced (ie, less than the amount of data of the original data). In addition, the buffer size of the storage device 301 of the touch controller 1〇3 (described in detail in the following paragraph) can also be used. The micro-processing unit (MCU) 302 of the controller 103 can also be effectively reduced, and the general-purpose micro-processing unit can also be used, so that the overall cost of the sensing device can be effectively reduced. Figure 2 is a block diagram showing a touch sensing 201232355 according to an embodiment of the invention. The touch sensor 102 includes an inductive component 201, an analog to digital converter 202, a signal processing unit 203, and noise filtering. The sensing element 201 is configured to sense a touch event to generate a sensing value corresponding to each pixel. For example, one of the touch sensors (for example, the touch sensor 102-1) can be used to detect The signals are sequentially output to all the scan lines one by one, and all the touch sensors can sense the capacitance or resistance value of the pixels on the corresponding scan lines according to the detection signals. After the sensed values are obtained, the analog to digital converter 202 will The sensed value is converted from an analog form to a digital form to produce raw data representative of the sensed value. The noise filter 204 may filter out portions of the original data having an induced value less than a predetermined threshold. The signal processing unit 203 further processes the filtered material and transmits the filtered data to the touch controller 103. It should be noted that in some embodiments of the present invention, the noise filter 204 can be integrated into the signal processing unit 203. In other words, the filtering of the sensed values can also be performed by the signal processing unit 203, and thus the present invention is not limited to any particular architecture. Referring back to FIG. 1, the touch controller 103 can receive the filtered data from the touch sensors 102-1 to 102_N, and process the filtered data to accurately determine the occurrence of the touch event on the touch panel. position. For example, the touch controller 103 can recognize the pixel points touched by the user's fingertips in the pixel groups 401, 402, 403, and 404 shown in Fig. 4. The touch controller 103 can include a storage device 301 for storing the received filtered data, and the micro processing unit 302 is configured to process the received filtered data to identify the location where the touch event occurred. According to an embodiment of the invention, the touch sensor and the touch controller can be implemented as separate wafers, respectively. However, according to another embodiment of the present invention, 201232355
觸碰感應器與觸碰控制器也可被整合為單—晶片，使得觸 碰控制器103的功能可被整合至觸碰感應器。第3圖係顯 示根據本發明之另一實施例所述之顯示系統方塊圖。在此 實施例中，觸碰控制器的功能被整合於觸碰感應器3q。 因此’觸碰感應n 30U以外的其它觸碰感應器（例如圖中 的觸碰感應器302-N)可將其所得到之過濾過的資料傳送至 觸碰感應器3G2.1。觸碰感應器搬]進—步處理過遽過的 資料，以定位出觸控面板上觸碰事件所發生的正確位“置。 第4圖係顯示根據本發明之一實施例所述之觸控面板 上之被觸碰的像素點示意圖。根據本發明之另—實施例， 除了過濾'過的資料（即，可能被觸碰之像素點，例如第4圖 所示之像素群組4CU、4〇2、销與，所對應之感應值 的原始資料），觸控面板101之邊緣像素(例如像素群組405 與406)所對應之感應值的原始f料也可由對應的觸碰感應 器被傳送至觸碰控制器1Q3或具有觸碰控•之功能整^ 於其中的觸碰感應器，用以協助定位出觸“板iq =ΓΓ置。無論邊緣像素之感應值是否超： =觸^制，其對應之原始資料傳送到觸碰控制器或 的像素點日Hx感應邊界則右手 邊手邊 能不會偵剩—事件，但仍必彡^^_感應器可 資料傳送至觸碰控制Β二，像素群組406之原始 錢觸⑯減器，“精確辨認出使 201232355 用者的指尖位置。 本發明雖以較佳實施例揭露如上，然其並非用以限定 本發明的範圍，任何熟習此項技藝者，在不脫離本發明之 精神和範圍内，當可做些許的更動與潤飾，因此本發明之 保護範圍當視後附之申請專利範圍所界定者為準。 201232355 【圖式簡單說明】 第1圖係顯示根據本發明之一實施例所述之顯示系統 方塊圖。 第2圖係顯示根據本發明之一實施例所述之觸碰感應 器方塊圖。 第3圖係顯示根據本發明之另一實施例所述之顯示系 統方塊圖。 第4圖係顯示根據本發明之一實施例所述之觸控面板 φ 上之被觸碰的像素點示意圖。 【主要元件符號說明】 100〜顯示系統； 101〜觸控面板； 102、102-1、102-N、302-1、302-N〜觸碰感應器； 103〜觸碰控制器； 201〜感應元件； φ 2〇2〜類比至數位轉換器； 203〜信號處理單元； 204〜雜訊濾波器； 301〜儲存裝置； 302〜微處理單元； 401、402、403 ' 404、405、406〜像素群組； B1〜邊界。The touch sensor and touch controller can also be integrated into a single wafer so that the function of the touch controller 103 can be integrated into the touch sensor. Figure 3 is a block diagram showing a display system in accordance with another embodiment of the present invention. In this embodiment, the function of the touch controller is integrated into the touch sensor 3q. Therefore, other touch sensors other than the touch sensing n 30U (for example, the touch sensor 302-N in the figure) can transmit the filtered data obtained to the touch sensor 3G2.1. Touching the sensor to advance the processed data to locate the correct bit occurring on the touch panel on the touch panel. Figure 4 shows the touch according to an embodiment of the present invention. A schematic diagram of a touched pixel point on a control panel. According to another embodiment of the present invention, in addition to filtering the past data (ie, pixels that may be touched, such as the pixel group 4CU shown in FIG. 4, 4. The original material of the sensing value corresponding to the edge of the touch panel 101 (for example, the pixel groups 405 and 406) may also be the corresponding touch sensor. A touch sensor that is transmitted to the touch controller 1Q3 or has a touch control function to assist in locating the touch panel "iq=ΓΓ". Regardless of whether the sensing value of the edge pixel is super: = touch system, the corresponding original data is transmitted to the touch controller or the pixel point Hx sensing boundary, then the right hand side can not detect the remaining - event, but still must ^ The invention can be transmitted to the touch control unit 2, and the original money touch panel 16 of the pixel group 406 "precisely recognizes the fingertip position of the user of 201232355. The present invention has been disclosed in the preferred embodiment as above. However, it is not intended to limit the scope of the present invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. 201232355 [Simplified Schematic] FIG. 1 is a block diagram showing a display system according to an embodiment of the present invention. FIG. 2 is a view showing an embodiment of the present invention. Touching the sensor block diagram. Fig. 3 is a block diagram showing a display system according to another embodiment of the present invention. Fig. 4 is a view showing the touch panel φ according to an embodiment of the present invention. Schematic diagram of the touched pixels. [Main component symbol description] 100~ display system; 101~ touch panel; 102, 102-1, 102-N, 302-1, 302-N~ touch sensor; 103~touch Controller; 201 ~ sensing element; φ 2 〇 2 ~ analog to digital converter; 203 ~ signal processing unit; 204 ~ noise filter; 301 ~ storage device; 302 ~ micro processing unit; 401, 402, 403 ' 404 , 405, 406 ~ pixel group; B1 ~ boundary.