201122956 fizwvujl 33091twf.doc/j 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種觸控模組，特別是有關於一種應 用於觸控螢幕的觸控模組。 【先前技術】 近年來由於衫像顯示技術不斷地進步，觸控式榮幕 因為具有可直接透過接觸方式進行輸入之優點，已成為現 今市面上常見的一種顯示裝置，並且廣泛地應用於各類電 子產品中，例如自動櫃員機、銷售點終端機、遊客導覽系 統或工業控制系統等。 、 習知技術中有多種實現觸控介面的方式。舉例而言， ^些習知液晶顯示器在面板上貼附一層觸控膜，來達成電 容式或電阻式觸控。或者’亦有習知技術將微小的觸控元 件作在液晶顯示面板内。 另有習知技術採用光學感測的方式來判斷手指或觸 幕的位置’其制好個影像制元件分別 ^測手指_控筆在相對於螢幕的—維座標位置 ，進而將 &些二維座標傳送至额外設置的_控制器中，再藉由控制 ϋ對逆些-維座標進行三角定位而得知物體相對於螢幕的 位置。，而，此舉卻必須在螢幕或作業平台上另行設置包 ^制置’因而容易造細外的製造成本且使觸控 效能降低 201122956 n^uJl 33091tvvf.doc/j 【發明内容】 本發明提供一種觸控模組，其藉由任一觸控模組電性 * 連接於通用串列匯流排而將座標信號傳出。 本發明提供一種觸控螢幕，其觸控模組藉由任一觸控 模組連接於通用串列匯流排而將座楳信號傳出。 本發明的一實施例提出一種觸控模组，適用於一顯示 器以使顯示器具有觸控功能。顯承器具有一顯示面與位 ❹ 於顯示面前的一感測空間。觸控模組包括至少二觸控單元 以及一傳輪介面。觸控單元配置於顯承面的上半側，且至 少任意兩個觸控單元彼此電性連接。释/觸控單元電性連 接於傳輪介面。當至少一觸控物體進入感測空間時，觸控 單兀感測到觸控物體而分別產生一第〆信號。這些第一信 號匯集至與傳輸介面電性連接的觸控單元，並轉換成一第 一L號後從傳輸介面傳出觸控模組。 本發明的一實施例提出一種觸控螢幕，包括一顯示器 與一觸控模組。顯示器具有一顯示面與位於顯示面前的一 ❹，測空間。觸控模組配置在顯示器上，其包括至少二觸控 單元以及一傳輸介面。觸控單元配置於顯禾面的上半侧， 且至少任意兩個觸控單元彼此電性連接。任一觸控單元電 性連接於傳輸介面。當至少一觸控物體進入感測空間時， ，控單元感測到觸控物體而分別產生一第〆信號。這第一 仏號匯集至與傳輸介面電性連接的觸控單元的其中之一， 並轉換成一第二信號後從傳輪介面傳出觸控模組。 本發明的一實施例提出一種觸控模组，適用於一顯示 201122956 FI2WW31 3309ltwf_d〇e/j 器，以使顯示器具有觸控功能。顯示器具有一顯示面與位 於顯示面前的一感測空間。觸控模組包括三個觸控單元以 及一通用串列匯流排。觸控單元配置於顯示面的上半側， 且這些觸控單元彼此電性連接。任一觸控單元電性連接於 通用串列匯流排。當至少一觸控物體進入感測空間時，觸 控單元感測到觸控物體而分別產生一第一信號。這些第一 信號匯集至與通用串列匯流排電性連接的觸控單元，並轉 換成一第二信號後從通用串列匯流排傳出觸控模組。 本發明的一實施例提出一種觸控螢幕，包括一顯示器 與一觸控模組。顯示器具有一顯示面與位於顯示面前的一 感測空間。觸控模組配置在顯示器上，以使顯示器具有觸 控功能。觸控模組包括三個觸控單元與一通用串列匯流 排。觸控單元配置於顯示面的上半側，其中這些觸控單元 彼此電性連接。任一觸控單元電性連接於通用串列匯流 排。當至少一觸控物體進入感測空間時，觸控單元感測到 觸控物體而分別產生一第〆信號，這些第一信號匯集至與 通用串列匯流排電性連接的觸控早元，並轉換成一第二作 號後從通用串列匯流排傳出觸控模組。 在本發明之一實施例中，上述之傳輪介面為一通用 列匯流排。 在本發明之一實施例中，上述之第一信號為一一維 標信號。 * 在本發明之一實施例中，上述之第二信號為一二維 標信號。 ^ 201122956 …33091twfldoc/j 在本發明之一實施例中，上述之觸控單元彼此電性連 在本發明之一實施例中，上述之觸控單元包括一光源 與一系統晶片組。光源朝向感測空間發出光線。系統晶片 組電性連接光源。系統晶片組包括相互電性連接的一感測 元件與一信號處理元件。當觸控物體進入感測空間時，感 測元件會感測觸控物體所反射的光線而產生一感測信號。 ❹ 仏號處理元件接收感測信號而判斷觸控物體相對於顯示面 的位置，並產生上述之一維座標信號。 在本發明之一實施例中，更包括一介面電路，上述之 觸控單元藉由介面電路而電性連接。 在本發明之一實施例中，更包括一網路攝影機，具有 上述之通料列匯流排，且任—觸控單元電性連接於網路攝 影機。 f於上述，在本發明的上述實施例中，至少任意兩個 f控早70彼此電性連接’並使_㈣匯流排電性連接於任 Ο 的觸控單元。鱗使各_控單元所產生的—維座样 ^號得輯集至其中之—的觸控單元，並讓此觸控單元^ k些-維座標信號轉換成—二維座標信號後，經由通201122956 fizwvujl 33091twf.doc/j VI. Description of the Invention: [Technical Field] The present invention relates to a touch module, and more particularly to a touch module applied to a touch screen. [Prior Art] In recent years, due to the continuous advancement of the shirt image display technology, the touch-type glory screen has become a common display device on the market today because of its advantages of being directly input through contact, and is widely used in various types. Among electronic products, such as ATMs, point-of-sale terminals, visitor navigation systems, or industrial control systems. There are various ways to implement the touch interface in the prior art. For example, some conventional liquid crystal displays have a touch film attached to the panel to achieve capacitive or resistive touch. Or, there are also conventional techniques for making tiny touch elements in a liquid crystal display panel. Another conventional technique uses optical sensing to determine the position of a finger or a touch screen. 'There are a set of image components to measure the finger _ control pen in the position relative to the screen - and then the second The dimensional coordinates are transmitted to the _ controller of the additional settings, and the position of the object relative to the screen is known by triangulating the inverse-dimensional coordinates by the control ϋ. However, this must be set separately on the screen or the work platform, so that the manufacturing cost is easy to make and the touch performance is reduced. 201122956 n^uJl 33091tvvf.doc/j [Summary of the Invention] The present invention provides A touch module transmits a coordinate signal by any one of the touch modules electrically connected to the universal serial bus. The invention provides a touch screen, wherein the touch module transmits a coordinate signal by connecting any touch module to the universal serial bus. An embodiment of the invention provides a touch module suitable for use in a display to provide a display with a touch function. The display has a display surface and a sensing space in front of the display. The touch module includes at least two touch units and a transfer wheel interface. The touch unit is disposed on the upper half of the display surface, and at least any two touch units are electrically connected to each other. The release/touch unit is electrically connected to the transfer interface. When at least one touch object enters the sensing space, the touch unit senses the touch object to generate a second signal. The first signals are collected into a touch unit electrically connected to the transmission interface, and converted into a first L number to transmit the touch module from the transmission interface. An embodiment of the invention provides a touch screen including a display and a touch module. The display has a display surface and a measurement space in front of the display. The touch module is disposed on the display and includes at least two touch units and a transmission interface. The touch unit is disposed on the upper half of the display surface, and at least any two touch units are electrically connected to each other. Any touch unit is electrically connected to the transmission interface. When at least one touch object enters the sensing space, the control unit senses the touch object to generate a second chirp signal. The first nickname is collected into one of the touch units electrically connected to the transmission interface, and converted into a second signal to transmit the touch module from the transmission interface. An embodiment of the present invention provides a touch module suitable for displaying a 201122956 FI2WW31 3309ltwf_d〇e/j device to enable the display to have a touch function. The display has a display surface and a sensing space in front of the display. The touch module includes three touch units and a universal serial bus. The touch units are disposed on the upper half of the display surface, and the touch units are electrically connected to each other. Any touch unit is electrically connected to the universal serial bus. When at least one touch object enters the sensing space, the touch control unit senses the touch object to generate a first signal. The first signals are collected into a touch unit electrically connected to the universal serial bus, and converted into a second signal to transmit the touch module from the universal serial bus. An embodiment of the invention provides a touch screen including a display and a touch module. The display has a display surface and a sensing space in front of the display. The touch module is configured on the display to enable the display to have a touch function. The touch module includes three touch units and a universal serial bus. The touch unit is disposed on the upper half of the display surface, wherein the touch units are electrically connected to each other. Any touch unit is electrically connected to the universal serial bus. When at least one touch object enters the sensing space, the touch unit senses the touch object to generate a second signal, and the first signals are collected to the touch early element electrically connected to the universal serial bus. After being converted into a second number, the touch module is transmitted from the universal serial bus. In one embodiment of the invention, the pass wheel interface is a universal bus bar. In an embodiment of the invention, the first signal is a one-dimensional standard signal. * In an embodiment of the invention, the second signal is a two-dimensional signal. In one embodiment of the present invention, the touch units are electrically connected to each other. In one embodiment of the present invention, the touch unit includes a light source and a system wafer set. The light source emits light toward the sensing space. The system chip set is electrically connected to the light source. The system chip set includes a sensing element and a signal processing element that are electrically connected to each other. When the touch object enters the sensing space, the sensing component senses the light reflected by the touch object to generate a sensing signal. The 仏 处理 processing element receives the sensing signal to determine the position of the touch object relative to the display surface, and generates the one-dimensional coordinate signal. In an embodiment of the invention, an interface circuit is further included, and the touch unit is electrically connected by an interface circuit. In an embodiment of the present invention, a network camera is further included, and the above-mentioned billet bus is arranged, and the touch unit is electrically connected to the network camera. In the above embodiment of the present invention, at least any two of the f controllers 70 are electrically connected to each other and the _ (four) bus bar is electrically connected to any of the touch units. The scale causes the touch unit generated by each _ control unit to be collected into the touch unit, and the touch unit is converted into a two-dimensional coordinate signal, and then passed through
列匯流排傳出觸控模組，以達到使顯示器具有觸控功能 目的。 J 為讓本發明之上料徵和優減更賴祕，下 舉只施例，並配合所附圖式作詳細說明如下。 、 201122956 rizuuyuj 1 33091twf.doc/j 【.實施方式】 圖1是本發明一實施例的一種觸控螢幕的示意圖。請 參考圖1，觸控螢幕300包括一顯示器200與一觸控模^ 100。觸控模組100配置在顯示器200上，以使顯示器2〇〇 具有觸控功能。顯示器200具有一顯示面210與位於顯示 面210前的一感測空間220。 在本實施例中，觸控模組100包括三個觸控單元11〇、 120、130、一通用_列匯流排140以及一介面電路I%。 觸控單元110、120、130配置於顯示面210的上半侧，其 中觸控單元110、120彼此經由介面電路150電性連接，且 觸控單元120、130彼此經由介面電路15〇電性連接。再者， 由任一觸控單元110或120或130電性連接於通用串列匯 流排140。方便以下說明，本周例由12〇電性連接於通 串列匯流排140。 ' 當一觸控物體50進入感測空間220時，觸控單一 110、120、130感測到觸控物體50而分別產生一維^標= 號，這些一維座標信號匯集至觸控單元12〇，並轉換^二 二維座標信號後從通用串列匯流排14〇傳出觸控模組工⑻。 在此，本實施例並未限制一維座標信號匯集至觸控單 元120。因此，觸控單元11〇、12〇、13〇所產生的—^ ，信號亦可匯集至觸控單元11G或13G後，再轉換成1 信號而經由通用串列匯流排14〇傳出。 、、’ 基於上述，在本實施例的觸控單元中，觸控單元110、 120、130之間的電性連接可依照實際需求而加以變更， 201122956 π^υυ^31 33091twf.doc/j 各個觸控單元110、120、130所產生的一維座標信號匯集 至這些觸控單元110、120、130的其中之一（在本實施例 中為觸控單元120)，進而待此觸控單元no或120或130 將一維座標信號轉換成二維座標信號，便藉由通用串列匯 流排140傳出觸控模組100，以使顯示器2〇〇具備觸控功 能。 再加以詳述如下，圖2是圖1的觸控模組中部分構件 ❹ 的方塊圖，請同時參考圖1及圖2。在本實施例中，由於 各個觸控單元的組成結構相同，在此僅以觸控單元12〇為 例進行說明。觸控單元120包括一光源122以及一系統晶 片組124。光源122用以朝向感測空間22〇發出光線，其 例如是發光二極體（light emitting diode，LED)、雷射二極 體（laser diode)或一不可見光光源等適當的發光元件。系 統晶片組124電性連接至光源122，且系統晶片組124包 括相互電性連接的一感測元件i24a與一信號處理元件 124b。在本實施例中，感測元件124a與信號處理元件12牝 〇 可藉由系統晶片（system on chip，SoC)技術將其整合於單 一晶片中，惟本實施例並對此進行限制。 具體而言，當觸控物體50進入感測空間22〇時，感 測元件124a會感測到觸控物體50所反射的光線，而此觸 控物體50成像於感測元件i24a上的即為一亮點或一暗 點。此時感測元件124a便會產生感測信號傳送至信號處理 元件124b，而信號處理元件i24b便會根據對應的感測元 件124a所感測到的光線亮度變化判斷出觸控物體5〇的位 201122956 rizuuyuji 33091twf.doc/j L = 號。在此，一維座標信號例如是代 ^觸控物體50所反射的光線入射至感測元件馳的入射 角0 接著’這些-維座標信號便匯集至觸控單元⑽的系 =曰片組m中，並經由儲存在系統晶片板124中的編譯 程式而從运些-維座標信號判斷出觸控物體％相對於顯 =面21〇的位置。舉例來說，系統晶片組124中的編譯程 式可根據光線人射至觸控單元11G、m、⑽的感測元件 之兩個入射角而計算出觸控物體5G相對於顯示面21〇的位 置’藉以產生二維座標信號。之後，再經由通用串列匯流 排140而傳送至作業平台9〇。二維座標信號經由傳輸介面 140至一作業平台90。如此一來，作業平台90便可判斷出 觸控物體50相對於顯示面210所顯示之畫面的位置，進而 實現觸控功能。 在本實施例中，作業平台90例如為一電腦主機。然 而’在其他實施例中，作業平台90亦可以是一手機、個人 數位助理（personal digital assistant, PDA)、數位相機或 其他適當的電子裝置。 據此’觸控模組1 〇〇便能藉由至少任意兩個彼此電性 連接的觸控單元110、120、130，以及與通用串列匯流排 140電性連接的觸控單元11〇或12〇或13〇，而達到將二維 座標信號傳送至作業平台90的目的，以減少習知技術中需 額外增設的信號轉換控制器，進而提高觸控螢幕3〇〇的魍 控效能。 33091twf.doc/j 201122956 在此，本實施例亦未限制與通用串列匯流排14〇電性 it接的觸控單it 11〇、120、13〇。在本發明另—未緣示的 實施例中，通用串列匯流排140亦可電性連接於觸控 110或120或130’因此在此實施例中，任一觸控單元11〇、 120、130皆可進行匯集一維座標信號的動作，以便更容易 地將轉換後的二維座標信號傳送至作業平台9〇。 圖3是本發明另-實施例的—種觸控螢幕的示意圖， ❹ 請參考圖3，與上述實施例不同的是，在本實施例中，觸 控模組働包括四個觸控單元41〇、猶、43〇與44〇，其 中觸控單元410與420、410與430及410與440'分別彼^ 經由介面電路150而電性連接。當觸控物體5〇進入感測空 間220後，各個觸控早元41 〇、420、430與440所產生的 一維座標信號便匯集至觸控單元41〇後轉換成二維座標信 號’並經由與觸控單元41〇電性連接的通用_列匯流排14〇 而傳至作業平台90。 據此’本實施例可藉由觸控單元410、420、430、440 ❹與，用串〉列匯流排140彼此不同的電性連接配置，而使顯 不器200具有觸控功能。上述僅描述部分實施方式，並未 對本發明進行限制，設計者可依據實際上的觸控功能需求 而對觸控單元的數量與通用串列匯流排14〇進行適當的配 置。 另一方面，圖4是本發明另一實施例的一種觸控螢幕 的示意圖。請參考圖4，在本實施例中，觸控模組5〇〇更 包括一網路攝影機160，配置在顯示器200上。網路攝影 11 201122956 rizuwwjl 33091twf.d〇c/j 機160電性連接至觸控單元12〇，其中網路攝影機16〇具 有通用串列匯流排140，因此從觸控單元120所產生的二 維座標4§號便能經由網路攝影機16〇的通用串列匯流排 140而傳出觸控模組500。與上述實施例相同，本實施例亦 未限制與網路攝影機160電性連接的觸控單元12〇，亦即 觸控單兀140或160同樣能與網路攝影機16〇電性連接。 綜上所述’本發明藉由觸控單元與通用串列匯流排而 使顯示器具備觸控功能，其中各個觸控單元所產生的一維 座標信號經由上述實施例的配置可先匯集至其中之一的觸 ❹ 控單元，並在此觸控單元中進行座標轉換後，藉由通用串 列匯流排而傳出觸控模組。此舉藉由先期運算而降低資料 傳輪量，藉以有效地節省傳輸時間’而使觸控模組與應用 此觸控模組的觸控螢幕具有更高的觸控效率。 雖然本發明已以實施例揭露如上，然其並非用以限定 本發明，任何所屬技術領域中具有通常知識者，在不脫離 本發明之精神和範圍内，當可作些許之更動與潤飾，故本 發明之保賴圍當視_之申請專概圍所界定者鱗。◎ 【圖式簡單說明】 圖1是本發明一實施例的一種觸控螢幕的示意圖。 圖2是圖1的觸控模組中部分構件的方塊圖。 圖3是本發明另一實施例的一種觸控螢幕的示意圖… 圖4是本發明另一實施例的一種觸控螢幕的示意圖。 12 201122956 Γ Jl^VV/；7UJ 1 33091twf.doc/j 【主要元件符號說明】 50 :觸控物體 90:作業平台 100、400、500 :觸控模組 110、120、130、410、420、430、440 :觸控單元 122 :光源 124 :系統晶片組 124a:感測元件 124b :信號處理元件 140:通用串列匯流排 150 :介面電路 160 :網路攝影機 200 :顯示器 210 :顯示面 220 :感測空間 300 :觸控螢幕 13The touch bus module transmits the touch module to achieve the touch function of the display. In order to make the above-mentioned materials and advantages of the present invention more rigorous, the following examples are only given, and the drawings are described in detail below. , 201122956 rizuuyuj 1 33091twf.doc/j [Embodiment] FIG. 1 is a schematic diagram of a touch screen according to an embodiment of the present invention. Referring to FIG. 1, the touch screen 300 includes a display 200 and a touch module 100. The touch module 100 is disposed on the display 200 to enable the display 2 to have a touch function. The display 200 has a display surface 210 and a sensing space 220 located in front of the display surface 210. In this embodiment, the touch module 100 includes three touch units 11 , 120 , 130 , a universal_column 140 and an interface circuit 1%. The touch units 110 , 120 , and 130 are electrically connected to each other via the interface circuit 150 , and the touch units 120 and 130 are electrically connected to each other via the interface circuit 15 . . Furthermore, any one of the touch units 110 or 120 or 130 is electrically connected to the universal serial bus 140. For convenience of the following description, this week, the example is electrically connected to the serial bus bar 140 by 12 turns. When a touch object 50 enters the sensing space 220, the touch singles 110, 120, 130 sense the touch object 50 to generate a one-dimensional mark = number, and the one-dimensional coordinate signals are collected to the touch unit 12 〇, and convert the ^ two-dimensional coordinate signal and then transmit the touch module (8) from the universal serial bus 14 。. Here, the embodiment does not limit the aggregation of the one-dimensional coordinate signals to the touch unit 120. Therefore, the signals generated by the touch units 11〇, 12〇, and 13〇 may be collected into the touch unit 11G or 13G, and then converted into a 1 signal and transmitted through the universal serial bus 14 〇. Based on the above, in the touch unit of the embodiment, the electrical connection between the touch units 110, 120, and 130 can be changed according to actual needs, 201122956 π^υυ^31 33091twf.doc/j The one-dimensional coordinate signals generated by the touch units 110, 120, and 130 are collected into one of the touch units 110, 120, and 130 (in this embodiment, the touch unit 120), and then the touch unit is not provided. Or 120 or 130 converts the one-dimensional coordinate signal into a two-dimensional coordinate signal, and the touch module 100 is transmitted through the universal serial bus 140 to enable the display 2 to have a touch function. 2 is a block diagram of some components in the touch module of FIG. 1, please refer to FIG. 1 and FIG. 2 at the same time. In this embodiment, since the composition of each touch unit is the same, only the touch unit 12A will be described as an example. The touch unit 120 includes a light source 122 and a system wafer set 124. The light source 122 is configured to emit light toward the sensing space 22, and is, for example, a suitable light emitting element such as a light emitting diode (LED), a laser diode, or an invisible light source. The system chipset 124 is electrically connected to the light source 122, and the system chipset 124 includes a sensing component i24a and a signal processing component 124b that are electrically connected to each other. In this embodiment, the sensing component 124a and the signal processing component 12 can be integrated into a single wafer by system on chip (SoC) technology, but this embodiment is limited. Specifically, when the touch object 50 enters the sensing space 22, the sensing component 124a senses the light reflected by the touch object 50, and the touch object 50 is imaged on the sensing component i24a. A bright spot or a dark spot. At this time, the sensing component 124a generates a sensing signal to be transmitted to the signal processing component 124b, and the signal processing component i24b determines the position of the touch object 5〇 according to the change of the brightness of the light sensed by the corresponding sensing component 124a. Rizuuyuji 33091twf.doc/j L = No. Here, the one-dimensional coordinate signal is, for example, the incident angle of the light reflected by the touch object 50 to the sensing element, and then the 'the dimensional coordinate signal is collected to the touch unit (10). The position of the touch object % relative to the display surface 21 is determined from the video-dimensional coordinate signals by the compiler stored in the system chip board 124. For example, the compiler in the system chipset 124 can calculate the position of the touch object 5G relative to the display surface 21〇 according to the two incident angles of the sensing elements of the light touching person to the touch units 11G, m, and (10). 'By the purpose of generating a two-dimensional coordinate signal. Thereafter, it is transmitted to the work platform 9 via the universal serial bus 140. The two-dimensional coordinate signal is transmitted through a transmission interface 140 to a work platform 90. In this way, the work platform 90 can determine the position of the touch object 50 relative to the screen displayed on the display surface 210, thereby implementing the touch function. In the embodiment, the work platform 90 is, for example, a computer host. However, in other embodiments, the work platform 90 can also be a cell phone, a personal digital assistant (PDA), a digital camera, or other suitable electronic device. The touch module 1 can be connected by at least any two touch units 110, 120, 130 electrically connected to each other, and the touch unit 11 electrically connected to the universal serial bus 140 or 12〇 or 13〇, the purpose of transmitting the two-dimensional coordinate signal to the working platform 90 is achieved, so as to reduce the need for an additional signal conversion controller in the prior art, thereby improving the control performance of the touch screen. 33091 twf.doc/j 201122956 Here, the present embodiment also does not limit the touch singles 11 〇, 120, 13 与 connected to the universal serial bus. In the embodiment of the present invention, the universal serial bus bar 140 can also be electrically connected to the touch 110 or 120 or 130 ′. Therefore, in this embodiment, any of the touch units 11 , 120 , The 130 can perform the action of collecting the one-dimensional coordinate signals to more easily transmit the converted two-dimensional coordinate signals to the work platform 9A. 3 is a schematic diagram of a touch screen according to another embodiment of the present invention. Referring to FIG. 3, the touch module 働 includes four touch units 41 in this embodiment. The touch units 410 and 420, 410 and 430, and 410 and 440' are electrically connected via the interface circuit 150, respectively. After the touch object 5〇 enters the sensing space 220, the one-dimensional coordinate signals generated by the respective touch elements 41 〇, 420, 430, and 440 are collected into the touch unit 41 and converted into a two-dimensional coordinate signal 'and It is transmitted to the work platform 90 via the general-purpose bus bar 14〇 electrically connected to the touch unit 41. According to this embodiment, the touch unit 410, 420, 430, and 440 can be electrically connected to each other by the serial port and the bus bar 140, so that the display device 200 has a touch function. The foregoing description only describes some embodiments, and the present invention is not limited. The designer can appropriately configure the number of touch units and the universal serial bus 14 according to the actual touch function requirements. On the other hand, Fig. 4 is a schematic diagram of a touch screen according to another embodiment of the present invention. Referring to FIG. 4, in the embodiment, the touch module 5 further includes a network camera 160 disposed on the display 200. The network camera 11 201122956 rizuwwjl 33091twf.d〇c/j machine 160 is electrically connected to the touch unit 12A, wherein the network camera 16A has a universal serial bus 140, so the two-dimensional generated from the touch unit 120 The coordinate 4 § can be transmitted to the touch module 500 via the universal serial bus 140 of the web camera 16 。. The touch unit 12 is electrically connected to the network camera 160, that is, the touch unit 140 or 160 can also be electrically connected to the network camera 16 in the same manner as the above embodiment. In summary, the present invention provides a touch function by using a touch unit and a universal serial bus, wherein the one-dimensional coordinate signals generated by the touch units can be collected into the first embodiment through the configuration of the above embodiment. After touching the control unit and performing coordinate conversion in the touch unit, the touch module is transmitted through the universal serial bus. This is achieved by reducing the amount of data transmission by prior calculations, thereby effectively saving transmission time. The touch module and the touch screen of the touch module have higher touch efficiency. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The claim of the invention is defined by the scope of the application. ◎ BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a touch screen according to an embodiment of the present invention. 2 is a block diagram of some components of the touch module of FIG. 1. 3 is a schematic diagram of a touch screen according to another embodiment of the present invention. FIG. 4 is a schematic diagram of a touch screen according to another embodiment of the present invention. 12 201122956 Γ Jl^VV/;7UJ 1 33091twf.doc/j [Main component symbol description] 50: touch object 90: work platform 100, 400, 500: touch module 110, 120, 130, 410, 420, 430, 440: touch unit 122: light source 124: system chip set 124a: sensing element 124b: signal processing element 140: universal serial bus 150: interface circuit 160: network camera 200: display 210: display surface 220: Sensing space 300: touch screen 13