TWI486844B - Optical touch device with scan ability - Google Patents
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Description
本發明是有關於一種光學觸控掃描裝置，特別是一種用於掃描觸控物件並可將其轉換成影像資料的光學觸控掃描裝置。The present invention relates to an optical touch scanning device, and more particularly to an optical touch scanning device for scanning a touch object and converting it into image data.
近年來，隨著觸控技術的蓬勃發展，相關技術已廣泛應用於各種產品上。例如在筆記型電腦之觸控裝置代替滑鼠之應用，可減小筆記型電腦整體裝置之體積並減輕其重量，為消費者提升了攜帶便利性。In recent years, with the vigorous development of touch technology, related technologies have been widely used in various products. For example, in the application of the touch device of the notebook computer instead of the mouse, the overall size of the notebook computer can be reduced and the weight can be reduced, thereby improving the convenience of carrying for the consumer.
此外，隨著目前大眾對於個人化功能之需求的提升，目前也已發展出具有指紋辨識或名片掃描等功能的筆記型電腦。因此，如何將這些個人化的功能模組化零為整，使筆記型電腦可同時兼具輕薄及多樣個人化功能的特性，實為此領域之相關人員所關注的議題之一。In addition, with the current public demand for personalized functions, notebook computers with functions such as fingerprint recognition or business card scanning have also been developed. Therefore, how to modularize these personalized functions into zero, so that the notebook computer can simultaneously have the characteristics of thin and light and diverse personal functions, is one of the topics of concern to the relevant personnel in this field.
有鑑於此，本發明提出一種用於掃描觸控物件之光學觸控掃描裝置，其能整合觸控與掃描觸控物件並轉換成影像的功能。In view of the above, the present invention provides an optical touch scanning device for scanning a touch object, which can integrate the functions of touching and scanning a touch object and converting the image into an image.
本發明提出一種用於掃描觸控物件之光學觸控掃描裝置，其包括薄膜電晶體陣列基板、複數個光感元件、透光封裝層以及光源模組。這些光感元件設置於薄膜電晶體陣列基板之上，透光封裝層設置於這些光感元件之上，並具有表面及底面，其中底面與表面分別位於透光封裝層的相對兩側，且底面係朝向 這些光感元件。光源模組配置於薄膜電晶體陣列基板的下方，光源模組包括導光板、光學膜片以及發光元件。導光板具有入光面與出光面，光學膜片配置於出光面上方而位於導光板與薄膜電晶體陣列基板之間。發光元件配置於導光板之入光面旁，其中發光元件所發出之光線是由導光板之入光面射入導光板內部，並經由導光板之出光面出射。而且，當觸控物件位於表面上方時，光線經由導光板之出光面射至觸控物件後反射抵達光感元件。The invention provides an optical touch scanning device for scanning a touch object, which comprises a thin film transistor array substrate, a plurality of light sensing elements, a light transmissive encapsulation layer and a light source module. The light sensing elements are disposed on the thin film transistor array substrate, and the light transmissive encapsulating layer is disposed on the light sensing elements, and has a surface and a bottom surface, wherein the bottom surface and the surface are respectively located on opposite sides of the transparent encapsulating layer, and the bottom surface Department orientation These light sensing elements. The light source module is disposed under the thin film transistor array substrate, and the light source module includes a light guide plate, an optical film, and a light emitting element. The light guide plate has a light incident surface and a light exit surface, and the optical film is disposed above the light exit surface between the light guide plate and the thin film transistor array substrate. The light-emitting element is disposed beside the light-incident surface of the light guide plate, wherein the light emitted by the light-emitting element is incident on the light-injecting surface of the light guide plate and is emitted through the light-emitting surface of the light guide plate. Moreover, when the touch object is located above the surface, the light is reflected by the light emitting surface of the light guide plate to the touch object and reflected to reach the light sensing element.
本發明的另提出一種光學觸控掃描裝置，其包括薄膜電晶體陣列基板、複數個光感元件以及光源模組。光感元件設置於薄膜電晶體陣列基板之上，光源模組配置於這些光感元件的上方。光源模組包括導光板以及發光元件。導光板具有入光面、表面及底面，其中表面與底面分別位於導光板之相對兩側，且底面係朝向光感元件。發光元件配置於導光板之入光面旁，其中發光元件所發出之光線是由導光板之入光面射入導光板內部。而且，當觸控物件位於表面上方時，光線射至觸控物件後反射抵達光感元件。Another optical touch scanning device of the present invention includes a thin film transistor array substrate, a plurality of light sensing elements, and a light source module. The light sensing element is disposed on the thin film transistor array substrate, and the light source module is disposed above the light sensing elements. The light source module includes a light guide plate and a light emitting element. The light guide plate has a light incident surface, a surface and a bottom surface, wherein the surface and the bottom surface are respectively located on opposite sides of the light guide plate, and the bottom surface faces the light sensing element. The light emitting element is disposed beside the light incident surface of the light guide plate, wherein the light emitted by the light emitting element is incident on the light guide plate through the light incident surface of the light guide plate. Moreover, when the touch object is located above the surface, the light is reflected to the touch object and reflected to reach the light sensing element.
為讓本發明之上述和其他目的、特徵和優點能更明顯易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。The above and other objects, features and advantages of the present invention will become more <RTIgt;
圖1為本發明實施例之光學觸控掃描裝置的剖面示意圖。請參照圖1，光學觸控掃描裝置100包括薄膜電晶體陣列基板110、複數個光感元件120、透光封裝層130以及光源模組140。這些光感元件120設置於薄膜電晶體陣列基板110之上，透光封裝層130設置於光感元件120之上，透光封裝層130具有表面131及底面132，其中底面132係朝向光感元件120，表面131係與底面132相對。光源模組140配置於薄膜 電晶體陣列基板110的下方，光源模組140包括導光板141、光學膜片142以及發光元件143。導光板141具有入光面141a與出光面141b，光學膜片142配置於出光面141b上方而位於導光板141與薄膜電晶體陣列基板110之間。發光元件143毗鄰導光板141之入光面141a，其中發光元件143所發出之光線L1是經由導光板141的入光面141a射至導光板141內部。而且，當觸控物件T位於表面131上的接觸點R時，光線L1經由導光板141之出光面141b射至表面131之接觸點R後反射抵達光感元件120。1 is a cross-sectional view of an optical touch scanning device according to an embodiment of the present invention. Referring to FIG. 1 , the optical touch scanning device 100 includes a thin film transistor array substrate 110 , a plurality of light sensing elements 120 , a light transmissive encapsulating layer 130 , and a light source module 140 . The light sensing element 120 is disposed on the thin film transistor array substrate 110, and the light transmissive encapsulating layer 130 is disposed on the light sensing element 120. The light transmissive encapsulating layer 130 has a surface 131 and a bottom surface 132, wherein the bottom surface 132 faces the light sensing element. 120, the surface 131 is opposite to the bottom surface 132. The light source module 140 is disposed on the film Below the transistor array substrate 110, the light source module 140 includes a light guide plate 141, an optical film 142, and a light-emitting element 143. The light guide plate 141 has a light incident surface 141a and a light exit surface 141b. The optical film 142 is disposed above the light exit surface 141b and between the light guide plate 141 and the thin film transistor array substrate 110. The light-emitting element 143 is adjacent to the light-incident surface 141a of the light guide plate 141, and the light L1 emitted from the light-emitting element 143 is incident on the light guide plate 141 via the light-incident surface 141a of the light guide plate 141. Moreover, when the touch object T is located at the contact point R on the surface 131, the light L1 is incident on the light-emitting surface 141b of the light guide plate 141 to the contact point R of the surface 131, and is reflected to reach the light-sensitive element 120.
詳細來說，當光線L1射至表面131之接觸點R時，對應於觸控物件T之表面不同高度或不同反射率區域，所形成的反射光線L2之強度亦會隨之不同。而光感元件120在接收到反射光線L2後，可根據反射光線L2之強度將其轉換為一類比訊號，並將此類比訊號輸出至薄膜電晶體陣列基板110，以做為一影像訊號。此外，光感元件120亦可根據其所接收到的之反射光線L2來判斷觸控物件T的位置及其移動。如此一來，即可依據光感元件120所接收到的資訊進行觸控控制。In detail, when the light ray L1 is incident on the contact point R of the surface 131, the intensity of the reflected light L2 formed will be different depending on the height of the surface of the touch object T or the different reflectance regions. After receiving the reflected light L2, the light sensing element 120 converts the reflected light L2 into an analog signal according to the intensity of the reflected light L2, and outputs the analog signal to the thin film transistor array substrate 110 as an image signal. In addition, the light sensing element 120 can also determine the position of the touch object T and its movement according to the reflected light L2 received by the light sensing element 120. In this way, the touch control can be performed according to the information received by the light sensing element 120.
此外，在本實施例中，上述由發光元件143發射之光線L1從導光板之出光面141b出射時，其出光角度θ(也就是光線L1與出光面141b之法線方向之間的夾角)例如是等於光線L1自透光封裝層130出射時的出射角θ，且θ需小於25度，較佳為23度。如此一來，光線L1在出射至接觸點R之後，因應觸控物件T之表面而反射的光線L2也能具有較小的散射角，進而能夠提高光感元件120所接收到之訊號的品質，以獲得較佳的辨識影像。Further, in the present embodiment, when the light L1 emitted from the light-emitting element 143 is emitted from the light-emitting surface 141b of the light guide plate, the light-emitting angle θ (that is, the angle between the light L1 and the normal direction of the light-emitting surface 141b) is, for example, It is equal to the exit angle θ when the light ray L1 is emitted from the light-transmissive encapsulating layer 130, and θ needs to be less than 25 degrees, preferably 23 degrees. In this way, after the light L1 is emitted to the contact point R, the light L2 reflected by the surface of the touch object T can also have a small scattering angle, thereby improving the quality of the signal received by the light sensing element 120. For better identification images.
在本發明之另一實施例中，上述之光學膜片142例如是逆稜鏡片(reverse prism)。當光線L1經由導光板141之出光面141b 進入光學膜片142時，此逆稜鏡片可提高光線L1之準直性。除此之外，導光板141之出光面141更可以具有V型溝槽(V-cut)，以增加出射光線L1之準直性。In another embodiment of the invention, the optical film 142 described above is, for example, a reverse prism. When the light ray L1 passes through the light emitting surface 141b of the light guide plate 141 When entering the optical film 142, the reverse film can improve the collimation of the light L1. In addition, the light-emitting surface 141 of the light guide plate 141 may further have a V-cut to increase the collimation of the outgoing light L1.
圖2A為本發明另一實施例之光學觸控掃描裝置的剖面示意圖。請參照圖2A，本實施例之光學觸控掃描裝置201更包括濾光層250，配置於透光封裝層130下並面向光感元件120。具體來說，濾光層250的材質例如是光阻，並藉由選用不同化學性質之光阻，以阻擋不同波段之外界光線射入，進而避免外界光線射入光學觸控掃描裝置120內而對光感元件120造成干擾。2A is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention. Referring to FIG. 2A , the optical touch scanning device 201 of the present embodiment further includes a filter layer 250 disposed under the light transmissive encapsulation layer 130 and facing the light sensing element 120 . Specifically, the material of the filter layer 250 is, for example, a photoresist, and the light resistance of different chemical properties is selected to block the intrusion of light from different bands, thereby preventing external light from entering the optical touch scanning device 120. It causes interference to the light sensing element 120.
此外，本實施例之光源模組140還可以包括反射片145，配置於導光板141下方而位於出光面141b的另一側。反射片145用於反射進入導光板141之光線L1，以使光線L1由出光面141b射出。In addition, the light source module 140 of the embodiment may further include a reflective sheet 145 disposed under the light guide plate 141 and located on the other side of the light exit surface 141b. The reflection sheet 145 is for reflecting the light L1 entering the light guide plate 141 so that the light L1 is emitted from the light exit surface 141b.
雖然圖2A所示之實施例係在光感元件120上形成全面性覆蓋的濾光層250，但在另一實施例中，如圖2B所示，光學觸控掃描裝置202之濾光層250也可以是由多個濾光圖案255所構成，且各濾光圖案255分別對應至一個光感元件120。或者，在其他實施例中，如圖2C所示也可以直接使用具有濾光功能的濾光基板做為透光封裝層130，本發明不限於此。Although the embodiment shown in FIG. 2A forms a comprehensively covered filter layer 250 on the light sensing element 120, in another embodiment, as shown in FIG. 2B, the filter layer 250 of the optical touch scanning device 202. A plurality of filter patterns 255 may be formed, and each of the filter patterns 255 corresponds to one of the light sensing elements 120. Alternatively, in other embodiments, the filter substrate having the filter function may be directly used as the light-transmissive encapsulation layer 130 as shown in FIG. 2C, and the present invention is not limited thereto.
另一方面，本實施例之透光封裝層130可以是玻璃基板或是軟性基板，例如聚對苯二甲酸二乙酯(polyethylene terephthalate,PET)、聚苯二甲酸乙二醇酯(polyethylene naphthalene,PEN)等材料製成的塑膠基板，厚度約為50 m至2mm。除此之外，透光封裝層130亦可為一透光薄膜，此透光薄膜可透過表面硬化處理(hard coat)之製程來增強其表面硬度，其厚度約為200埃至2mm。On the other hand, the light-transmissive encapsulating layer 130 of the present embodiment may be a glass substrate or a flexible substrate, such as polyethylene terephthalate (PET) or polyethylene naphthalene (polyethylene naphthalene). Plastic substrates made of materials such as PEN) have a thickness of approximately 50 m to 2 mm. In addition, the light transmissive encapsulating layer 130 may also be a light transmissive film which is reinforced by a hard coat process and has a surface hardness of about 200 angstroms to 2 mm.
圖3A為本發明另一實施例之光學觸控掃描裝置的剖面示意圖。請參照圖3A，本實施例之光學觸控掃描裝置300還可 以包括有聚光片310，其中聚光片310具有聚光面312，進而可提高自聚光片310所出射之光線的準直性。特別的是，聚光片310可以配置於透光封裝層130與光感元件120之間，且聚光面312例如是面向光感元件120(如圖3A所示)，或是面向透光封裝層130(如圖3B所示)。3A is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention. Referring to FIG. 3A, the optical touch scanning device 300 of the embodiment can also be used. The concentrating sheet 310 is included, wherein the concentrating sheet 310 has a condensing surface 312, thereby improving the collimation of the light emitted from the concentrating sheet 310. In particular, the concentrating sheet 310 can be disposed between the light transmissive encapsulating layer 130 and the light sensing element 120, and the concentrating surface 312 is, for example, facing the light sensing element 120 (as shown in FIG. 3A) or facing the light transmitting package. Layer 130 (shown in Figure 3B).
除此之外，聚光片310也可以是配置於透光封裝層130上方，且聚光面312例如是面向透光封裝層130(如圖3C所示)，或是背向透光封裝層130(如圖3D所示)。另外，在其他實施例中，圖3A至圖3D所繪示的聚光片310也可以是與透光封裝層130以一體成型製作而成，如圖3E及圖3F所示，也就是在透光封裝層130的表面上設計聚光結構，以形成與前述實施例相同之聚光面312。In addition, the concentrating sheet 310 may be disposed above the transparent encapsulating layer 130, and the concentrating surface 312 is, for example, facing the transparent encapsulating layer 130 (as shown in FIG. 3C) or facing away from the transparent encapsulating layer. 130 (as shown in Figure 3D). In addition, in other embodiments, the concentrating sheet 310 illustrated in FIG. 3A to FIG. 3D may also be integrally formed with the light transmissive encapsulating layer 130, as shown in FIG. 3E and FIG. 3F, that is, A light collecting structure is designed on the surface of the light encapsulating layer 130 to form the same collecting surface 312 as the foregoing embodiment.
上述實施例均是將光源模組140配置於薄膜電晶體陣列基板110下方，但本發明並不限於此。在其他實施例中，光源模組140也可以配置於薄膜電晶體陣列基板110的上方。以下將舉實施例說明之。In the above embodiments, the light source module 140 is disposed under the thin film transistor array substrate 110, but the present invention is not limited thereto. In other embodiments, the light source module 140 can also be disposed above the thin film transistor array substrate 110. The embodiment will be described below.
圖4為本發明另一實施例之光學觸控掃描裝置的剖面示意圖。請參照圖4，光學觸控掃描裝置400包括薄膜電晶體陣列基板410、複數個光感元件420以及光源模組430。光感元件420設置於薄膜電晶體陣列基板410之上，光源模組430配置於薄膜電晶體陣列基板410的上方。光源模組430包括導光板431以及發光元件432。導光板431具有入光面431a、表面431b及底面431c，其中底面431c係朝向光感元件420，表面431b係與底面431c相對。發光元件432毗鄰於導光板431之入光面431a旁，其中發光元件432所發出之光線L1是由導光板431之入光面431a射入導光板431內部。特別的是，由於導光板431之表面431b並 未設計有任何光學圖案，因此當尚未有觸控物件T位於表面431b上方時，光線L1係於導光板431內以全反射路徑行進；當觸控物件T位於表面431b之接觸點R時，光線L1於導光板431內之全反射路徑受到破壞，在出射至導光板431之表面431b之接觸點R後反射光線L2抵達光感元件420。4 is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention. Referring to FIG. 4 , the optical touch scanning device 400 includes a thin film transistor array substrate 410 , a plurality of light sensing elements 420 , and a light source module 430 . The light sensing element 420 is disposed on the thin film transistor array substrate 410, and the light source module 430 is disposed above the thin film transistor array substrate 410. The light source module 430 includes a light guide plate 431 and a light emitting element 432. The light guide plate 431 has a light incident surface 431a, a surface 431b, and a bottom surface 431c, wherein the bottom surface 431c faces the light sensing element 420, and the surface 431b faces the bottom surface 431c. The light-emitting element 432 is adjacent to the light-incident surface 431a of the light-guiding plate 431. The light L1 emitted by the light-emitting element 432 is incident on the light-guide plate 431 by the light-incident surface 431a of the light guide plate 431. In particular, due to the surface 431b of the light guide plate 431 No optical pattern is designed, so when the touch object T is not located above the surface 431b, the light L1 is driven in the light guide plate 431 to travel in a total reflection path; when the touch object T is located at the contact point R of the surface 431b, the light The total reflection path of L1 in the light guide plate 431 is broken, and the reflected light L2 reaches the photosensitive element 420 after exiting to the contact point R of the surface 431b of the light guide plate 431.
進一步說明，在尚未有觸控物件T位於表面431b時，由於導光板431內部的光折射率大於外界空氣的光折射率，且光線L1出射至表面431b的入射角大於此處的臨界角，因此光線L1會於導光板431內以全反射行進。另一方面當觸控物件T接觸於表面431b之接觸點R時，由於在接觸點R處與導光板431以表面431b相隔的物體從外界空氣變為觸控物件T，其光折射率不同，因而可破壞光線L1在導光板431內部的全反射，使光線L1經由接觸點R出射後射至觸控物件T而反射抵達光感元件420。光感元件420在接收到觸控物件T所反射之光線L2後，即會根據光線L2之強度生成觸控物件T的影像訊號。Further, when the touch object T is not located on the surface 431b, since the refractive index of the light inside the light guide plate 431 is larger than the refractive index of the outside air, and the incident angle of the light L1 to the surface 431b is larger than the critical angle here, The light ray L1 travels in the light guide plate 431 with total reflection. On the other hand, when the touch object T contacts the contact point R of the surface 431b, since the object separated from the light guide plate 431 by the surface 431b at the contact point R changes from the outside air to the touch object T, the refractive index of the light is different. Therefore, the total reflection of the light L1 inside the light guide plate 431 can be destroyed, and the light L1 is emitted through the contact point R and then incident on the touch object T to be reflected and reaches the light sensing element 420. After receiving the light L2 reflected by the touch object T, the light sensing element 420 generates an image signal of the touch object T according to the intensity of the light L2.
如同前述實施例之說明，為增加光線L1自導光板431之表面431b出射時的準直性，可在導光板431之表面431b的上方配置具有聚光特性的基板，以下將舉實施例詳述之。As described in the foregoing embodiment, in order to increase the collimation when the light L1 is emitted from the surface 431b of the light guide plate 431, a substrate having condensing characteristics may be disposed above the surface 431b of the light guide plate 431, which will be described in detail below. It.
圖5A為本發明另一實施例之光學觸控掃描裝置的剖面示意圖。請參照圖5A，光學觸控掃描裝置500更例如包括聚光片510，配置於導光板431之表面431b上方，用以提高光線之準直性。其中，聚光片510具有聚光面512，且聚光面512可以是面向導光板431之表面431b(如圖5A所示)，或是背向導光板431之表面431b(如圖5B所示)。或者，在其他實施例中，聚光片510也可以配置於導光板431與薄膜電晶體陣列基板410之間，且聚光面512可以是朝向導光板431的底面431c(如圖5C所示) 或是朝向光感元件420(如圖5D所示)，本發明不限定任何一種配置方法。FIG. 5A is a schematic cross-sectional view of an optical touch scanning device according to another embodiment of the present invention. Referring to FIG. 5A, the optical touch scanning device 500 further includes a concentrating sheet 510 disposed above the surface 431b of the light guide plate 431 for improving the collimation of light. The concentrating sheet 510 has a condensing surface 512, and the concentrating surface 512 may be the surface 431b of the surface guiding plate 431 (as shown in FIG. 5A) or the surface 431b of the back light guiding plate 431 (as shown in FIG. 5B). . Alternatively, in other embodiments, the concentrating sheet 510 may be disposed between the light guide plate 431 and the thin film transistor array substrate 410, and the concentrating surface 512 may be toward the bottom surface 431c of the light guide plate 431 (as shown in FIG. 5C). Or toward the light sensing element 420 (as shown in FIG. 5D), the present invention is not limited to any configuration method.
綜上所述，在本發明之光學觸控掃描裝置係利用光感元件來掃描觸控物件並將其儲存為影像訊號，亦可根據反射至光感元件之光線判斷觸控物件的位置，進而達到整合觸控與影像掃描之功能。另一方面，本發明之光學觸控掃描裝置在一實施例中還可配置有稜鏡片、聚光片，或是於導光板之出光面上製作V型溝槽，以降低光線之散射角度，提升影像品質。此外，本發明之光學觸控掃描裝置還可藉由濾光層或濾光基板過濾外界入射至光學觸控掃描裝置的光線，進而提高訊噪比(Signal-to-noise ratio)。In summary, the optical touch scanning device of the present invention uses a light sensing element to scan a touch object and store it as an image signal, and can also determine the position of the touch object according to the light reflected to the light sensing element. Achieve integrated touch and image scanning capabilities. In one embodiment, the optical touch scanning device of the present invention may further be configured with a cymbal sheet, a concentrating sheet, or a V-shaped groove on the light-emitting surface of the light guiding plate to reduce the scattering angle of the light. Improve image quality. In addition, the optical touch scanning device of the present invention can filter the light incident on the optical touch scanning device by the filter layer or the filter substrate, thereby improving the signal-to-noise ratio.
雖然本發明已以較佳實施例揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，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。While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.
L1‧‧‧光線L1‧‧‧Light
L2‧‧‧反射光線L2‧‧‧reflecting light
R‧‧‧接觸點R‧‧‧ touch points
T‧‧‧觸控物件T‧‧‧ touch objects
θ‧‧‧出光角度θ‧‧‧Lighting angle
100、201、202、300、400、500‧‧‧光學觸控掃描裝置100, 201, 202, 300, 400, 500‧‧‧ optical touch scanning device
110、410‧‧‧薄膜電晶體陣列基板110,410‧‧‧film transistor array substrate
120、420‧‧‧光感元件120, 420‧‧‧Light-sensitive components
130‧‧‧透光封裝層130‧‧‧Transparent encapsulation layer
131、431b‧‧‧表面131, 431b‧‧‧ surface
132、431c‧‧‧底面132, 431c‧‧‧ bottom
140、430‧‧‧光源模組140, 430‧‧‧Light source module
141、431‧‧‧導光板141, 431‧‧‧Light guide plate
141a、431a‧‧‧入光面141a, 431a‧‧‧ into the glossy surface
141b‧‧‧出光面141b‧‧‧Glossy
142‧‧‧光學膜片142‧‧‧Optical diaphragm
143、432‧‧‧發光元件143, 432‧‧‧Lighting elements
250‧‧‧濾光層250‧‧‧Filter layer
255‧‧‧濾光圖案255‧‧‧ Filter pattern
310、510‧‧‧聚光片310, 510‧‧‧ concentrating film
312、512‧‧‧聚光面312, 512‧‧ ‧ concentrating surface
圖1為本發明一實施例之光學觸控掃描裝置剖面示意圖。1 is a cross-sectional view of an optical touch scanning device according to an embodiment of the invention.
圖2A為本發明另一實施例之光學觸控掃描裝置剖面示意圖。2A is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖2B為本發明另一實施例之光學觸控掃描裝置剖面示意圖。2B is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖2C為本發明另一實施例之光學觸控掃描裝置剖面示意圖。2C is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖3A為本發明另一實施例之光學觸控掃描裝置剖面示意圖。3A is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖3B為本發明另一實施例之光學觸控掃描裝置剖面示意圖。3B is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖3C為本發明另一實施例之光學觸控掃描裝置剖面示意圖。3C is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖3D為本發明另一實施例之光學觸控掃描裝置剖面示意圖。3D is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖3E為本發明另一實施例之光學觸控掃描裝置剖面示意圖。3E is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖3F為本發明另一實施例之光學觸控掃描裝置剖面示意圖。3F is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖4為本發明另一實施例之光學觸控掃描裝置剖面示意圖。4 is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖5A為本發明另一實施例之光學觸控掃描裝置剖面示意圖。FIG. 5A is a schematic cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖5B為本發明另一實施例之光學觸控掃描裝置剖面示意圖。FIG. 5B is a schematic cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖5C為本發明另一實施例之光學觸控掃描裝置剖面示意圖。5C is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
圖5D為本發明另一實施例之光學觸控掃描裝置剖面示意圖。5D is a cross-sectional view of an optical touch scanning device according to another embodiment of the present invention.
L1‧‧‧光線L1‧‧‧Light
L2‧‧‧反射光線L2‧‧‧reflecting light
R‧‧‧接觸點R‧‧‧ touch points
T‧‧‧觸控物件T‧‧‧ touch objects
θ‧‧‧出光角度θ‧‧‧Lighting angle
100‧‧‧光學觸控掃描裝置100‧‧‧ optical touch scanning device
110‧‧‧薄膜電晶體陣列基板110‧‧‧Film transistor array substrate
120‧‧‧光感元件120‧‧‧Light sensing components
130‧‧‧透光封裝層130‧‧‧Transparent encapsulation layer
131‧‧‧表面131‧‧‧ surface
132‧‧‧底面132‧‧‧ bottom
140‧‧‧光源模組140‧‧‧Light source module
141‧‧‧導光板141‧‧‧Light guide plate
141a‧‧‧入光面141a‧‧‧Glossy
141b‧‧‧出光面141b‧‧‧Glossy
142‧‧‧光學膜片142‧‧‧Optical diaphragm
143‧‧‧發光元件143‧‧‧Lighting elements
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| TW101135131A TWI486844B (en) | 2012-09-25 | 2012-09-25 | Optical touch device with scan ability |
| CN201210530095.9A CN103019474B (en) | 2012-09-25 | 2012-12-10 | Optical touch scanning device |
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| TW101135131A TWI486844B (en) | 2012-09-25 | 2012-09-25 | Optical touch device with scan ability |
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| TW201413542A TW201413542A (en) | 2014-04-01 |
| TWI486844B true TWI486844B (en) | 2015-06-01 |
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| TWI651569B (en) * | 2018-01-04 | 2019-02-21 | 敦捷光電股份有限公司 | In-screen optical fingerprinting of thin film transistor panels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103019474B (en) | 2016-08-31 |
| CN103019474A (en) | 2013-04-03 |
| TW201413542A (en) | 2014-04-01 |
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