TWI452501B - Touch system - Google Patents
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本發明涉及一種觸控系統，尤其涉及一種光學式觸控系統。 The present invention relates to a touch system, and more particularly to an optical touch system.
許多電子產品用觸控面板作為輸入方式，目前市場上的觸控面板主要包括電阻式觸控面板、電容式觸控面板和表面聲波式觸控面板。 Many electronic products use a touch panel as an input method. Currently, touch panels on the market mainly include a resistive touch panel, a capacitive touch panel, and a surface acoustic wave touch panel.
電阻式觸控面板的主要部分是一塊與顯示器表面非常配合的電阻薄膜屏，這是一種多層的複合薄膜，它以一層玻璃或硬塑膠平板作為基層，表面塗有一層透明氧化金屬(透明的導電電阻)導電層，上面再蓋有一層外表面硬化處理、光滑防擦的塑膠層、它的內表面也塗有一層塗層、在他們之間有許多細小的(小於1/1000英寸)的透明隔離點把兩層導電層隔開絕緣。當手指觸摸螢幕時，兩層導電層在觸摸點位置就有了接觸，電阻發生變化，在X和Y兩個方向上產生訊號，然後送觸摸屏控制器。控制器偵測到這一接觸並計算出(X，Y)的位置。電阻式觸控屏不受塵埃、水、汙物影響，能夠於較為惡劣情況下工作；但是，金屬導電層比較薄且容易脆斷，塗得太厚會降低透光率，並且經常被觸摸，使用一定時間後會出現裂紋，甚至變形。 The main part of the resistive touch panel is a resistive film screen that is very compatible with the surface of the display. It is a multi-layer composite film with a glass or hard plastic plate as the base layer and a transparent oxidized metal on the surface (transparent conductive). Resistor) Conductive layer, covered with a layer of outer surface hardened, smooth anti-scratch plastic layer, coated with a coating on its inner surface, with many small (less than 1/1000 inch) transparency between them The isolation point separates the two conductive layers from each other. When the finger touches the screen, the two conductive layers have contact at the touch point position, the resistance changes, and signals are generated in both the X and Y directions, and then sent to the touch screen controller. The controller detects this contact and calculates the position of (X, Y). The resistive touch screen is not affected by dust, water and dirt, and can work under severe conditions; however, the metal conductive layer is relatively thin and easy to be brittle, and coating too thick will reduce the light transmittance and is often touched. After a certain period of time, cracks may occur and even deformation may occur.
電容式觸控面板是在薄膜表面貼上一層透明的特殊金屬導電物質。當手指觸摸在金屬層上時，用戶和觸摸屏表面形成以一個耦合 電容，觸點的電容就會發生變化，使得與之相連的振盪器頻率發生變化，通過測量頻率變化可以確定觸摸位置。由於電容隨溫度、濕度或接地情況的不同而變化，故，穩定性較差，往往會產生漂移現象。 The capacitive touch panel is provided with a transparent special metal conductive material on the surface of the film. When the finger touches the metal layer, the user and the touch screen surface form a coupling Capacitance, the capacitance of the contact changes, so that the frequency of the oscillator connected to it changes, and the touch position can be determined by measuring the frequency change. Since the capacitance varies with temperature, humidity, or grounding conditions, the stability is poor and drift often occurs.
表面聲波式觸控面板由屏體、表面聲波發生器、反射條紋、表面聲波接收器和控制器組成。其中，表面聲波發生器發送表面聲波跨越屏體表面，當手指觸及屏體時，觸點的表面聲波即被阻止，控制器通過分析接收到的表面聲波確定觸點的位置。表面聲波式觸控屏不受溫度、濕度等環境因素影響，解析度高，有極好的防刮性，壽命長；透光率高、能保持清晰的圖像品質；沒有漂移，只需安裝時一次校正；有第三軸(即壓力軸)響應，目前在公共場所使用較多。但是表面聲波會被水、灰塵、油污甚至飲料的液體吸收，因此需經常清潔維護。 The surface acoustic wave touch panel is composed of a screen body, a surface acoustic wave generator, a reflection stripe, a surface acoustic wave receiver and a controller. Wherein, the surface acoustic wave generator sends a surface acoustic wave across the surface of the screen body, and when the finger touches the screen body, the surface acoustic wave of the contact is blocked, and the controller determines the position of the contact by analyzing the received surface acoustic wave. The surface acoustic wave touch screen is not affected by environmental factors such as temperature and humidity, has high resolution, excellent scratch resistance and long life; high light transmittance and clear image quality; no drift, only installation One time correction; there is a third axis (ie pressure axis) response, currently used in public places. However, surface acoustic waves are absorbed by water, dust, oil, and even liquids of beverages, so they need to be cleaned and maintained frequently.
有鑒於此，有必要提供一種結構簡單、綜合性能良好的觸控系統。 In view of this, it is necessary to provide a touch system with a simple structure and good overall performance.
一種觸控系統，包括：顯示面板，用於根據觸控物的觸控實現顯示功能；第一線性紅外線感測器，臨近所述顯示面板設置；第一紅外光源，與所述第一線性紅外線感測器位於所述面板的同一側且相鄰所述第一線性紅外線感測器，所述第一紅外光源發出的紅外線覆蓋所述顯示面板，所述第一紅外光源發出的紅外線被觸控物反射後在所述第一線性紅外線感測器上成像；以及，訊號處理器，接收所述第一線性紅外線感測器的影像訊號並根據所述影像訊號在所述第一線性紅外線感測器上的大小及位置來判斷所述觸 控物在所述顯示面板上的觸控位置。 A touch system includes: a display panel configured to implement a display function according to a touch of a touch object; a first linear infrared sensor disposed adjacent to the display panel; a first infrared light source, and the first line The infrared sensor is located on the same side of the panel and adjacent to the first linear infrared sensor, and the infrared light emitted by the first infrared light source covers the display panel, and the infrared light emitted by the first infrared light source And being imaged on the first linear infrared sensor after being reflected by the touch object; and the signal processor receiving the image signal of the first linear infrared sensor and according to the image signal The size and position of a linear infrared sensor to determine the touch The touch position of the object on the display panel.
優選地，進一步包括一個第一透鏡，所述第一紅外光源發出的紅外線被觸控物反射後經過所述第一透鏡成像在所述第一線性紅外線感測器上。 Preferably, a first lens is further included, and infrared rays emitted by the first infrared light source are reflected by the touch object and imaged on the first linear infrared sensor through the first lens.
優選地，進一步包括第二線性紅外線感測器和第二紅外光源，所述第二線性紅外線感測器和第二紅外光源位於所述面板的同一側且所述第二紅外光源相鄰所述第二線性紅外線感測器，所述第二紅外光源發出的紅外線覆蓋所述顯示面板，所述第二紅外光源發出的紅外線被觸控物反射後在所述第二線性紅外線感測器上成像。 Preferably, further comprising a second linear infrared sensor and a second infrared light source, the second linear infrared sensor and the second infrared light source are located on the same side of the panel and the second infrared light source is adjacent to the a second linear infrared sensor, the infrared light emitted by the second infrared light source covers the display panel, and the infrared light emitted by the second infrared light source is reflected by the touch object and imaged on the second linear infrared sensor .
優選地，進一步包括一個第二透鏡，所述第二紅外光源發出的紅外線被觸控物反射後經過所述第二透鏡成像在所述第二線性紅外線感測器上。 Preferably, the method further includes a second lens, and the infrared rays emitted by the second infrared light source are reflected by the touch object and imaged on the second linear infrared sensor through the second lens.
與先前技術相比，本發明實施例的觸控系統的紅外光源發出的紅外線覆蓋顯示面板表面，用戶利用觸控物觸控觸控系統的某一點，觸控物便會擋住經過該位置的紅外線並將其反射，觸控物體會成像在線性紅外線感測器上，根據圖像在線性紅外線感測器上的位置和大小便可計算出觸摸點的位置，因此，該觸控系統結構簡單；由於紅外線不受電流、電壓和靜電干擾，所以適宜惡劣的環境條件。 Compared with the prior art, the infrared light emitted by the infrared light source of the touch system of the embodiment of the present invention covers the surface of the display panel, and the user touches a certain point of the touch system by using the touch object, and the touch object blocks the infrared light passing through the position. Reflecting, the touch object is imaged on the linear infrared sensor, and the position of the touch point can be calculated according to the position and size of the image on the linear infrared sensor. Therefore, the touch system has a simple structure; Since infrared rays are not disturbed by current, voltage and static electricity, they are suitable for harsh environmental conditions.
10、20、30‧‧‧觸控系統 10, 20, 30‧‧‧ touch system
11、21、31‧‧‧顯示面板 11, 21, 31‧‧‧ display panels
12‧‧‧紅外光源 12‧‧‧Infrared source
13、23a、23b、33a、33b‧‧‧線性紅外線感測器 13, 23a, 23b, 33a, 33b‧‧‧ linear infrared sensor
14‧‧‧透鏡 14‧‧‧ lens
15、25、35‧‧‧訊號處理器 15, 25, 35‧‧‧ Signal Processor
16、26、36‧‧‧控制器 16, 26, 36‧ ‧ controller
17‧‧‧觸控筆 17‧‧‧ stylus
22a、32a‧‧‧第一紅外光源 22a, 32a‧‧‧ first infrared light source
22b、32b‧‧‧第二紅外光源 22b, 32b‧‧‧second infrared light source
24a、34a‧‧‧第一透鏡 24a, 34a‧‧‧ first lens
24b、34b‧‧‧第二透鏡 24b, 34b‧‧‧ second lens
27、37‧‧‧觸控單元 27, 37‧‧‧ touch unit
圖1是本發明第一實施例觸控系統的示意圖，其包括線性紅外線感測器。 1 is a schematic view of a touch system according to a first embodiment of the present invention, which includes a linear infrared sensor.
圖2是圖1中線性紅外線感測器成像示意圖。 2 is a schematic view showing the imaging of the linear infrared sensor of FIG. 1.
圖3是本發明第一實施例觸控系統的未工作時的示意圖。 3 is a schematic view of the touch system of the first embodiment of the present invention when it is not in operation.
圖4是本發明第一實施例觸控系統工作時的示意圖。 4 is a schematic view showing the operation of the touch system according to the first embodiment of the present invention.
圖5是本發明第二實施例觸控系統工作時的示意圖。 FIG. 5 is a schematic view showing the operation of the touch system according to the second embodiment of the present invention.
圖6是本發明第三實施例觸控系統工作時的示意圖。 FIG. 6 is a schematic view showing the operation of the touch system according to the third embodiment of the present invention.
下面將結合附圖對本發明作進一步詳細說明。 The invention will now be described in further detail with reference to the accompanying drawings.
請一併參閱圖1及圖2所示，本發明第一實施例的觸控系統10包括顯示面板11、紅外光源12、線性紅外線感測器13、透鏡14、訊號處理器15和控制器16。 As shown in FIG. 1 and FIG. 2 , the touch system 10 of the first embodiment of the present invention includes a display panel 11 , an infrared light source 12 , a linear infrared sensor 13 , a lens 14 , a signal processor 15 , and a controller 16 . .
顯示面板11通常可為矩形形狀，紅外光源12、線性紅外線感測器13和透鏡14位於顯示面板11的同一側。透鏡14位於線性紅外線感測器13的前面，光線經過透鏡14後成像在線性紅外線感測器13上。訊號處理器15分別與線性紅外線感測器13、控制器16電性連接，訊號處理器15接收線性紅外線感測器13的影像訊號並進行處理，計算出按壓點的位置，將處理結果輸出給控制器16，最後由控制器16對相應觸控做出反應並完成相應按壓指令。 The display panel 11 may generally have a rectangular shape, and the infrared light source 12, the linear infrared sensor 13 and the lens 14 are located on the same side of the display panel 11. The lens 14 is located in front of the linear infrared sensor 13, and the light passes through the lens 14 and is imaged on the linear infrared sensor 13. The signal processor 15 is electrically connected to the linear infrared sensor 13 and the controller 16, respectively, and the signal processor 15 receives the image signal of the linear infrared sensor 13 and processes it, calculates the position of the pressing point, and outputs the processing result to the The controller 16 finally reacts to the corresponding touch by the controller 16 and completes the corresponding pressing command.
紅外光源12位於顯示面板11的右上角，其為可以發出紅外線的發光二極體或鐳射二極體。當然，紅外光源12的位置並沒有限定，只要其發出的光能覆蓋顯示面板11即可。 The infrared light source 12 is located at the upper right corner of the display panel 11, and is a light emitting diode or a laser diode that can emit infrared rays. Of course, the position of the infrared light source 12 is not limited as long as the light emitted therefrom covers the display panel 11.
線性紅外線感測器13可為CCD(Charge Coupled Device，電荷耦合器件)感測器或者CMOS(Complementary Metal Oxide Semiconductor，互補金屬氧化物半導體存儲器)感測器，其具有一直線性排列的CCD像素或CMOS像素。 The linear infrared sensor 13 can be a CCD (Charge Coupled Device) sensor or a CMOS (Complementary Metal Oxide) A semiconductor, complementary metal oxide semiconductor memory) sensor having CCD pixels or CMOS pixels that are always linearly aligned.
線性紅外線感測器13的像素排列方向定義為X軸、與像素排列方向垂直的方向定義Y軸、X軸與Y軸的交點為線性紅外線感測器13的中間像素的中心O。 The pixel arrangement direction of the linear infrared sensor 13 is defined as the X axis, the direction perpendicular to the pixel arrangement direction defines the Y axis, and the intersection of the X axis and the Y axis is the center O of the intermediate pixel of the linear infrared sensor 13.
當固定尺寸的物體17位於Y軸的A點時，其成像在線性紅外線感測器13上的圖像A’位於O點；物體17沿平行X軸的方向由A點運動到B點，其成像在線性紅外線感測器13的圖像B’偏離O點一段距離，但是圖像B’的大小與圖像A’的大小相同(因為A點與B點距離線性紅外線感測器13的距離相等)；當物體17沿平行Y軸方向靠近線性紅外線感測器13運動到C點時，其成像在線性紅外線感測器13上的圖像C’亦會偏離O點一段距離，由於C點相對於A點更加靠近線性紅外線感測器13，因而圖像C’所占像素的面積大於圖像A’所占像素的面積；當物體17沿平行Y軸方向遠離線性紅外線感測器13運動到D點時，其成像在線性紅外線感測器13上的圖像D亦會偏離O點一段距離，由於D點相對於A點遠離靠近線性紅外線感測器13，因而圖像D’所占像素的面積小於圖像A’所占像素的面積。 When the fixed-size object 17 is located at point A of the Y-axis, the image A' imaged on the linear infrared sensor 13 is located at point O; the object 17 is moved from point A to point B in the direction of the parallel X-axis, The image B' imaged at the linear infrared sensor 13 is offset from the O point by a distance, but the size of the image B' is the same as the size of the image A' (because the distance between the point A and the point B is linear from the linear infrared sensor 13) When the object 17 moves to the point C near the linear infrared sensor 13 in the parallel Y-axis direction, the image C' imaged on the linear infrared sensor 13 will also deviate from the O point by a distance, due to the point C. The linear infrared sensor 13 is closer to the point A, and thus the area occupied by the image C' is larger than the area occupied by the image A'; when the object 17 is away from the linear infrared sensor 13 in the parallel Y-axis direction When moving to point D, the image D imaged on the linear infrared sensor 13 will also deviate from the O point by a distance, since the point D is far from the point of the linear infrared sensor 13 with respect to the point A, the image D' The area of the pixel is smaller than the area of the pixel occupied by the image A'.
簡而言之，物體17相對於線性紅外線感測器13左右移動時，其成像在線性紅外線感測器13上的圖像位置會有所不同但圖像大小相同，即物體17所在位置的座標與偏離O點的距離有關；當物體17相對於線性紅外線感測器13前後移動時，其成像在線性紅外線感測器13上的圖像大小(即所佔用的像素個數)會有所不同但圖像位置相同，即物體17所在位置的座標與圖像大小有關，距離線性 紅外線感測器13較近圖像較大，遠的圖像較小。 In short, when the object 17 moves left and right relative to the linear infrared sensor 13, the image position on the linear infrared sensor 13 will be different but the image size is the same, that is, the coordinates of the position of the object 17 It is related to the distance from the O point; when the object 17 moves back and forth with respect to the linear infrared sensor 13, the image size (i.e., the number of occupied pixels) imaged on the linear infrared sensor 13 will be different. But the image position is the same, that is, the coordinates of the position of the object 17 are related to the image size, and the distance is linear. The infrared sensor 13 has a larger image and a farther image.
在本實施例中，觸控系統10預先將A點的座標、圖像A’的大小作為參考資料並儲存在訊號處理器15中，只要物體17成像在線性紅外線感測器13上，根據該參考資料和線性紅外線感測器13的影像訊號可以推算出物體17所在位置的座標。 In this embodiment, the touch system 10 pre-determines the coordinates of the point A and the size of the image A' as reference materials and stores them in the signal processor 15, as long as the object 17 is imaged on the linear infrared sensor 13, according to the The reference and the image signal of the linear infrared sensor 13 can be used to derive the coordinates of the position of the object 17.
假設顯示面板11寬邊的中線與Y軸重合、A點座標為X A 、Y A 、圖像A’大小為S A ，那麼，物體17所在位置的座標可由下列運 算式得出：X=X A +ax、，其中，a、b為 常數，x為物體17在線性紅外線感測器13上成像的位置，S為物體17在線性紅外線感測器13的成像的大小。 Assuming that the center line of the broad side of the display panel 11 coincides with the Y axis, the coordinates of point A are X A , Y A , and the size of the image A' is S A , then the coordinates of the position of the object 17 can be obtained by the following expression: X = X A + ax , Where a , b are constants, x is the position at which the object 17 is imaged on the linear infrared sensor 13, and S is the size of the image of the object 17 at the linear infrared sensor 13.
如圖3及圖4，紅外光源12發出的紅外光L覆蓋在顯示面板11，當固定尺寸的觸控筆17觸控在顯示面板11上時，紅外線L被觸控筆17反射，反射光線L’經過透鏡14後成像在線性紅外線感測器13上。訊號處理器15接收線性紅外線感測器13的影像訊號，根據圖像的參數(例如圖像的大小、位置等)並執行上述運算以計算出按壓點的位置(即觸控筆17所觸控的位置)，然後將處理結果輸出給控制器16，最後由控制器16對相應觸控做出反應並完成相應按壓指令。 As shown in FIG. 3 and FIG. 4, the infrared light L emitted from the infrared light source 12 covers the display panel 11. When the fixed size stylus 17 is touched on the display panel 11, the infrared light L is reflected by the stylus pen 17, and the reflected light L is reflected. 'Imaged on the linear infrared sensor 13 after passing through the lens 14. The signal processor 15 receives the image signal of the linear infrared sensor 13, and performs the above operation according to the parameters of the image (for example, the size and position of the image) to calculate the position of the pressing point (ie, the touch of the stylus 17) The position is then output to the controller 16, and finally the controller 16 reacts to the corresponding touch and completes the corresponding press command.
由於觸控系統10只包括一個線性紅外線感測器13，所以觸控筆17的尺寸應該是固定地。當然，觸控系統10可以預先存儲觸控筆的尺寸大小資料，以及該尺寸的觸控筆相對線性感測器預定位置時在線性感測器中所成圖像的大小的關係資料，以便根據這些資料 來計算獲取該尺寸的觸控筆應用在該類型的觸控系統中的實際座標。 Since the touch system 10 includes only one linear infrared sensor 13, the size of the stylus 17 should be fixed. Of course, the touch system 10 can pre-store the size data of the stylus and the relationship between the size of the image formed in the online sensor when the stylus of the size is opposite to the predetermined position of the line sensor, so as to data To calculate the actual coordinates of the stylus that is acquired in this type of touch system.
紅外光源12發出的紅外線覆蓋顯示面板11表面，用戶利用觸控筆17觸摸觸控系統10的某一點，觸控筆17便會擋住經過該位置的紅外線並將其反射，觸控筆17會成像在線性紅外線感測器13上，根據圖像在線性紅外線感測器13上的位置和大小便可計算出觸摸點的位置，因此，該觸控系統10結構簡單；由於紅外線不受電流、電壓和靜電干擾，所以適宜惡劣的環境條件。 The infrared light emitted by the infrared light source 12 covers the surface of the display panel 11, and the user touches a certain point of the touch system 10 by using the stylus pen 17, and the stylus pen 17 blocks the infrared rays passing through the position and reflects it, and the stylus pen 17 images. On the linear infrared sensor 13, the position of the touch point can be calculated according to the position and size of the image on the linear infrared sensor 13. Therefore, the touch system 10 has a simple structure; since the infrared is not affected by current and voltage Interference with static electricity, so it is suitable for harsh environmental conditions.
如圖5所示，本發明第二實施例的觸控系統20包括顯示面板21、第一紅外光源22a、第二紅外光源22b、第一線性紅外線感測器23a、第二線性紅外線感測器23b、第一透鏡24a、第二透鏡24b、訊號處理器25和控制器26。 As shown in FIG. 5, the touch system 20 of the second embodiment of the present invention includes a display panel 21, a first infrared light source 22a, a second infrared light source 22b, a first linear infrared sensor 23a, and a second linear infrared sensing. The device 23b, the first lens 24a, the second lens 24b, the signal processor 25, and the controller 26.
顯示面板21為矩形形狀，第一紅外光源22a、第一線性紅外線感測器23a和第一透鏡24a與第二紅外光源22b、第二線性紅外線感測器23b和第二透鏡24b位於顯示面板21相對兩側。 The display panel 21 has a rectangular shape, and the first infrared light source 22a, the first linear infrared sensor 23a, and the first lens 24a and the second infrared light source 22b, the second linear infrared sensor 23b, and the second lens 24b are located on the display panel. 21 opposite sides.
第一紅外光源22a發出的紅外線L1被觸控單元27(例如手指或觸控筆)反射的反射光L1’經過第一透鏡24a後成像在第一線性紅外線感測器23a上；第二紅外光源22b發出的紅外線L2被觸控單元27反射的反射光L2’經過第二透鏡24b後成像在第二線性紅外線感測器23b上。訊號處理器15借由處理第一線性紅外線感測器23a和第二線性紅外線感測器23b的圖像可以得出觸控單元27的觸控位置，最後由控制器26對相應觸控做出反應並完成相應按壓指令。 The reflected light L1' reflected by the touch unit 27 (for example, a finger or a stylus pen) emitted by the first infrared light source 22a passes through the first lens 24a and is imaged on the first linear infrared sensor 23a; the second infrared The reflected light L2' reflected by the light source 22b and reflected by the touch unit 27 passes through the second lens 24b and is imaged on the second linear infrared sensor 23b. The signal processor 15 can obtain the touch position of the touch unit 27 by processing the images of the first linear infrared sensor 23a and the second linear infrared sensor 23b, and finally the controller 26 performs the corresponding touch. The reaction is completed and the corresponding pressing command is completed.
由於觸控系統20包括兩組紅外光源、感測器，通過線性紅外線感測器23a/23b均可以得出一個座標，計算該兩個座標可以得出觸控位置的座標，因此，觸控單元27的尺寸不需要固定(例如可以用手指觸摸觸控系統)。 Since the touch system 20 includes two sets of infrared light sources and sensors, a coordinate can be obtained by the linear infrared sensors 23a/23b, and the two coordinates can be calculated to obtain coordinates of the touch position. Therefore, the touch unit is The size of 27 does not need to be fixed (for example, the touch system can be touched with a finger).
如圖6所示，本發明第三實施例的觸控系統30與第二實施例的觸控系統20基本相同，同樣包括顯示面板31、第一紅外光源32a、第二紅外光源32b、第一線性紅外線感測器33a、第二線性紅外線感測器33b、第一透鏡34a、第二透鏡34b、訊號處理器35和控制器36，其不同之處在於：第一紅外光源32a、第一線性紅外線感測器33a和第一透鏡34a與第二紅外光源32b、第二線性紅外線感測器33b和第二透鏡34b位於顯示面板31相鄰兩側。 As shown in FIG. 6, the touch system 30 of the third embodiment of the present invention is substantially the same as the touch system 20 of the second embodiment, and includes a display panel 31, a first infrared light source 32a, a second infrared light source 32b, and a first The linear infrared sensor 33a, the second linear infrared sensor 33b, the first lens 34a, the second lens 34b, the signal processor 35 and the controller 36 are different in that: the first infrared light source 32a, the first The linear infrared sensor 33a and the first lens 34a and the second infrared light source 32b, the second linear infrared sensor 33b, and the second lens 34b are located on adjacent sides of the display panel 31.
觸控單元37所觸控位置的座標可以採用第二實施例的計算方法得出。 The coordinates of the touch position of the touch unit 37 can be obtained by the calculation method of the second embodiment.
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爰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內。 In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. 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 persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.
10‧‧‧觸控系統 10‧‧‧ touch system
11‧‧‧顯示面板 11‧‧‧ display panel
12‧‧‧紅外光源 12‧‧‧Infrared source
13‧‧‧性紅外線感測器 13‧‧‧Infrared sensor
14‧‧‧透鏡 14‧‧‧ lens
15‧‧‧訊號處理器 15‧‧‧ Signal Processor
16‧‧‧控制器 16‧‧‧ Controller
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
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| TW098114551A TWI452501B (en) | 2009-04-30 | 2009-04-30 | Touch system |
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| Application Number | Priority Date | Filing Date | Title |
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| TW098114551A TWI452501B (en) | 2009-04-30 | 2009-04-30 | Touch system |
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| TW201039215A TW201039215A (en) | 2010-11-01 |
| TWI452501B true TWI452501B (en) | 2014-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW098114551A TWI452501B (en) | 2009-04-30 | 2009-04-30 | Touch system |
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| TW (1) | TWI452501B (en) |
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| TWI447623B (en) * | 2009-07-23 | 2014-08-01 | Hon Hai Prec Ind Co Ltd | Optical touch device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080122792A1 (en) * | 2006-11-27 | 2008-05-29 | Microsoft Corporation | Communication with a Touch Screen |
| US20090002344A1 (en) * | 2004-06-16 | 2009-01-01 | Microsoft Corporation | Calibration of an interactive display system |
| US20090015564A1 (en) * | 2006-01-13 | 2009-01-15 | Xinlin Ye | Touch Force Detecting Apparatus For Infrared Touch Screen |
| US20090141006A1 (en) * | 2007-12-02 | 2009-06-04 | Lunghwa University Of Science And Technolgy | Touch screen system with light reflection |
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2009
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090002344A1 (en) * | 2004-06-16 | 2009-01-01 | Microsoft Corporation | Calibration of an interactive display system |
| US20090015564A1 (en) * | 2006-01-13 | 2009-01-15 | Xinlin Ye | Touch Force Detecting Apparatus For Infrared Touch Screen |
| US20080122792A1 (en) * | 2006-11-27 | 2008-05-29 | Microsoft Corporation | Communication with a Touch Screen |
| US20090141006A1 (en) * | 2007-12-02 | 2009-06-04 | Lunghwa University Of Science And Technolgy | Touch screen system with light reflection |
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