TWI401595B - Optical touch display - Google Patents
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Description
本發明是有關於一種觸控顯示裝置，且特別是有關於一種光學式觸控顯示裝置。The present invention relates to a touch display device, and more particularly to an optical touch display device.
觸控顯示裝置具有操作容易的優點，所以近年來已被廣泛地應用於多種電子產品，如行動電話、個人數位助理(personal digital assistant,PDA)、數位相機、音樂播放器、電腦、衛星導航裝置等。The touch display device has the advantages of easy operation, and has been widely used in various electronic products in recent years, such as a mobile phone, a personal digital assistant (PDA), a digital camera, a music player, a computer, and a satellite navigation device. Wait.
目前常見的觸控顯示裝置有電阻式觸控顯示裝置、電容式觸控顯示裝置及光學式觸控顯示裝置等，其中光學式觸控顯示裝置因具有成本較低的優勢，所以逐漸受到重視。At present, the common touch display devices include a resistive touch display device, a capacitive touch display device, and an optical touch display device. Among them, the optical touch display device has received increasing attention due to its low cost.
圖1是習知一種光學式觸控顯示裝置之示意圖。請參照圖1，習知光學式觸控顯示裝置100包括液晶顯示單元110、觸控單元120及透明基板130。液晶顯示單元110包括下基板111、上基板112、液晶層113、背光源(backlight source)114及框架115。液晶層113配置於下基板111與上基板112之間，且液晶層113、下基板111與上基板112組成液晶顯示面板116。背光源114配置於液晶顯示面板116的下方，以提供顯示光至液晶顯示面板116。框架115用以固定液晶顯示面板116與背光源114。此外，透明基板130配置於框架115上，且位於液晶層113上方，而觸控單元120配置於透明基板130上。觸控單元120包括光源122與光感測模組124，光源122用以提供光線123，而光感測模組124用以接收光源122所提供的光線123。FIG. 1 is a schematic diagram of a conventional optical touch display device. Referring to FIG. 1 , the conventional optical touch display device 100 includes a liquid crystal display unit 110 , a touch unit 120 , and a transparent substrate 130 . The liquid crystal display unit 110 includes a lower substrate 111, an upper substrate 112, a liquid crystal layer 113, a backlight source 114, and a frame 115. The liquid crystal layer 113 is disposed between the lower substrate 111 and the upper substrate 112, and the liquid crystal layer 113, the lower substrate 111, and the upper substrate 112 constitute a liquid crystal display panel 116. The backlight 114 is disposed under the liquid crystal display panel 116 to provide display light to the liquid crystal display panel 116. The frame 115 is used to fix the liquid crystal display panel 116 and the backlight 114. In addition, the transparent substrate 130 is disposed on the frame 115 and located above the liquid crystal layer 113 , and the touch unit 120 is disposed on the transparent substrate 130 . The light sensing unit 124 is configured to receive the light 123 provided by the light source 122. The light sensing unit 124 is configured to receive the light 123 provided by the light source 122.
承上述，光感測模組124具有多個感光畫素，以感測光線123。當使用者在觸控單元120進行操控動作時，部份光線123的傳遞路徑會被改變，導致部份感光畫素無法感測到光線123。根據這些未感測到光線123的感光畫素即可推算出操控位置。In the above, the light sensing module 124 has a plurality of photosensitive pixels to sense the light 123. When the user performs the manipulation action on the touch unit 120, the transmission path of the partial light 123 is changed, so that some of the photosensitive pixels cannot sense the light 123. Based on these photosensitive pixels that do not sense the light 123, the manipulation position can be derived.
在習知技術中，由於觸控單元120是設置在透明基板130上，導致光學式觸控顯示裝置100的整體厚度較厚。In the prior art, since the touch unit 120 is disposed on the transparent substrate 130, the overall thickness of the optical touch display device 100 is thick.
本發明提供一種光學式觸控顯示裝置，其具有較薄的厚度。The invention provides an optical touch display device having a thin thickness.
為達上述優點，本發明提出一種光學式觸控顯示裝置，包括一顯示單元與至少一光感測模組。顯示單元包括一第一基板以及一顯示層。第一基板具有一顯示區與圍繞顯示區的一非顯示區，而顯示層配置於第一基板的顯示區上。光感測模組配置於第一基板的非顯示區的上表面，光感測模組的一側表面具有一感光視窗，且至少部份感光視窗可接收在顯示單元上方之光線。此外，光感測模組包括一感測單元以及一固定單元。固定單元將感測單元固定於第一基板的非顯示區上方且將感測單元墊高至顯示單元上方，致使感測單元可藉由至少部份感光視窗而感測在顯示單元上方之光線並輸出一感測訊號。另外，在光感測模組中設置感光視窗之側表面以及感光視窗垂直於第一基板。To achieve the above advantages, the present invention provides an optical touch display device including a display unit and at least one light sensing module. The display unit includes a first substrate and a display layer. The first substrate has a display area and a non-display area surrounding the display area, and the display layer is disposed on the display area of the first substrate. The light sensing module is disposed on an upper surface of the non-display area of the first substrate, and one side surface of the light sensing module has a photosensitive window, and at least a portion of the photosensitive window can receive light above the display unit. In addition, the light sensing module includes a sensing unit and a fixing unit. The fixing unit fixes the sensing unit above the non-display area of the first substrate and raises the sensing unit above the display unit, so that the sensing unit can sense the light above the display unit by at least part of the photosensitive window and A sense signal is output. In addition, a side surface of the photosensitive window and a photosensitive window are disposed perpendicular to the first substrate in the light sensing module.
在本發明之一實施例中，在光感測模組中設置感光視窗之側表面係接觸顯示層。In an embodiment of the invention, the side surface of the photosensitive window is disposed in the light sensing module to contact the display layer.
在本發明之一實施例中，上述之光感測模組更包括一透鏡單元(lens unit)與一電路板。透鏡單元用以將從感光視窗進入之光線提供至感測單元，而電路板電性連接感測單元而輸出與感測單元所輸出之感測訊號相對應的訊號。固定單元將透鏡單元以及感測單元固定於第一基板上並墊高至感光視窗後方，致使感測單元可透過透鏡單元感測由感光視窗通過在顯示單元上方之光線。In an embodiment of the invention, the light sensing module further includes a lens unit and a circuit board. The lens unit is configured to provide light entering from the photosensitive window to the sensing unit, and the circuit board is electrically connected to the sensing unit to output a signal corresponding to the sensing signal output by the sensing unit. The fixing unit fixes the lens unit and the sensing unit on the first substrate and is raised to the rear of the photosensitive window, so that the sensing unit can sense the light passing through the photosensitive window through the photosensitive unit through the lens unit.
在本發明之一實施例中，上述之固定單元更固定電路板。In an embodiment of the invention, the fixed unit described above further fixes the circuit board.
在本發明之一實施例中，上述之光學式觸控顯示裝置包括多個光感測模組，而顯示區呈矩形，且光感測模組分別配置於顯示區的角落。In one embodiment of the present invention, the optical touch display device includes a plurality of light sensing modules, and the display area is rectangular, and the light sensing modules are respectively disposed at corners of the display area.
在本發明之一實施例中，上述之感測單元具有多個感測區，且每一感測區具有一視場。光感測模組更包括至少一反射件，配置於至少部份感測區之前，以轉折對應之感測區的視場。In an embodiment of the invention, the sensing unit has a plurality of sensing regions, and each sensing region has a field of view. The light sensing module further includes at least one reflective member disposed in front of at least a portion of the sensing region to turn the field of view of the corresponding sensing region.
在本發明之一實施例中，上述之反射件包括稜鏡。In an embodiment of the invention, the reflective member comprises a crucible.
在本發明之一實施例中，上述之光學式觸控顯示裝置更包括一光源，配置於第一基板的非顯示區上，以提供穿過顯示層上方之區域的光線至光感測模組。In an embodiment of the present invention, the optical touch display device further includes a light source disposed on the non-display area of the first substrate to provide light passing through the area above the display layer to the light sensing module. .
在本發明之一實施例中，上述之光源包括至少一發光元件與至少一導光元件。發光元件用以提供光線，而導光元件配置於發光元件旁。導光元件具有一入光面與一出光面，入光面接收光線，且光線從出光面出射。In an embodiment of the invention, the light source comprises at least one light emitting element and at least one light guiding element. The light emitting element is for providing light, and the light guiding element is disposed beside the light emitting element. The light guiding element has a light incident surface and a light exit surface, and the light incident surface receives the light, and the light is emitted from the light exit surface.
在本發明之一實施例中，上述之發光元件包括紅外光發光元件。In an embodiment of the invention, the light-emitting element comprises an infrared light-emitting element.
在本發明之一實施例中，上述之光學式觸控顯示裝置更包括一框架，包覆部份顯示單元與光感測模組。In an embodiment of the invention, the optical touch display device further includes a frame covering the partial display unit and the light sensing module.
在本發明之一實施例中，上述之顯示單元更包括一第二基板與多個間隙物(spacer)。第二基板與第一基板相對，且顯示層配置於第一基板與第二基板之間。間隙物配置於第一基板與第二基板之間。In an embodiment of the invention, the display unit further includes a second substrate and a plurality of spacers. The second substrate is opposite to the first substrate, and the display layer is disposed between the first substrate and the second substrate. The spacer is disposed between the first substrate and the second substrate.
在本發明之一實施例中，上述之顯示單元更包括一背光源，配置於第一基板下方。In an embodiment of the invention, the display unit further includes a backlight disposed under the first substrate.
在本發明之一實施例中，上述之顯示單元包括液晶顯示單元、雙穩態顯示單元、有機發光二極體顯示單元、電濕潤式顯示單元或電漿顯示單元。In an embodiment of the invention, the display unit comprises a liquid crystal display unit, a bistable display unit, an organic light emitting diode display unit, an electrowetting display unit or a plasma display unit.
在本發明中，光感測模組是配置於用來承載顯示層的第一基板上，而非配置於整個顯示單元上方。而且，相較於習知技術，本發明之光感測模組還省略了設置在顯示單元上方的透明基板。因此，本發明之光學式觸控顯示裝置具有較薄的厚度。In the present invention, the light sensing module is disposed on the first substrate for carrying the display layer, rather than being disposed above the entire display unit. Moreover, the light sensing module of the present invention also omits the transparent substrate disposed above the display unit compared to the prior art. Therefore, the optical touch display device of the present invention has a relatively thin thickness.
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2是本發明一實施例之一種光學式觸控顯示裝置的示意圖。請參照圖2，本實施例之光學式觸控顯示裝置200包括一顯示單元210與至少一光感測模組220。顯示單元210包括一第一基板212以及一顯示層214。第一基板212具有一顯示區211與圍繞顯示區211的一非顯示區213，而顯示層214配置於第一基板212的顯示區211上。光感測模組220配置於第一基板212的非顯示區213的上表面213a，光感測模組220的一側表面221具有一感光視窗223，且至少部份感光視窗223可接收在顯示單元210上方之光線231。2 is a schematic diagram of an optical touch display device according to an embodiment of the invention. Referring to FIG. 2 , the optical touch display device 200 of the present embodiment includes a display unit 210 and at least one light sensing module 220 . The display unit 210 includes a first substrate 212 and a display layer 214. The first substrate 212 has a display area 211 and a non-display area 213 surrounding the display area 211, and the display layer 214 is disposed on the display area 211 of the first substrate 212. The light sensing module 220 is disposed on the upper surface 213a of the non-display area 213 of the first substrate 212. One side surface 221 of the light sensing module 220 has a photosensitive window 223, and at least a portion of the photosensitive window 223 can be received. Light ray 231 above unit 210.
在光感測模組220中設置感光視窗223之側表面221例如是接觸顯示層214，且在光感測模組220中設置感光視窗223之側表面221以及感光視窗223例如是垂直於第一基板211。此外，上述之顯示單元210可為液晶顯示單元、雙穩態顯示單元、有機發光二極體顯示單元、電濕潤式顯示單元、電漿顯示單元或其他種類的顯示單元，而圖2是以液晶顯示單元為例。顯示單元210可更包括一第二基板216與多個間隙物217。第二基板216與第一基板212相對，且顯示層214配置於第一基板212與第二基板216之間。間隙物217配置於第一基板212與第二基板216之間(即位於顯示層124)，以維持第一基板212與第二基板216之間的間距。The side surface 221 of the photosensitive window 223 is disposed in the light sensing module 220, for example, the contact display layer 214, and the side surface 221 of the photosensitive window 223 is disposed in the light sensing module 220, and the photosensitive window 223 is perpendicular to the first Substrate 211. In addition, the display unit 210 may be a liquid crystal display unit, a bistable display unit, an organic light emitting diode display unit, an electrowetting display unit, a plasma display unit or other kinds of display units, and FIG. 2 is a liquid crystal. The display unit is an example. The display unit 210 can further include a second substrate 216 and a plurality of spacers 217. The second substrate 216 is opposite to the first substrate 212 , and the display layer 214 is disposed between the first substrate 212 and the second substrate 216 . The spacer 217 is disposed between the first substrate 212 and the second substrate 216 (ie, located on the display layer 124) to maintain a spacing between the first substrate 212 and the second substrate 216.
在本實施例中，由於部份感光視窗223被第二基板216所遮蔽，所以僅有部份感光視窗223可接收在顯示單元210上方之光線231。另外，由於液晶顯示單元的顯示層214為非自發光顯示層，所以顯示單元210例如更包括一背光源218，配置於第一基板212下方，以提供顯示光至顯示層214。當然，在顯示層為自發光顯示層的實施例中，此背光源218可省略。In this embodiment, since part of the photosensitive window 223 is shielded by the second substrate 216, only part of the photosensitive window 223 can receive the light 231 above the display unit 210. In addition, the display unit 210 further includes a backlight 218 disposed under the first substrate 212 to provide display light to the display layer 214. Of course, in embodiments where the display layer is a self-luminous display layer, this backlight 218 can be omitted.
上述之光學式觸控顯示裝置200可更包括一光源230，配置於第一基板212的非顯示區213上，以提供穿過顯示層214上方之區域的光線231至光感測模組220。光源230所提供的光線231例如是紅外光，但不以此為限。此外，光線231從感光視窗223進入光感測模組220後，光感測模組220的至少部份感光畫素(圖未示)可感測到光線231。當使用者在第二基板216上進行操控動作時，部份光線231的傳遞路徑會被改變，導致原先可感測到光線231的部份感光畫素無法感測到光線231。如此，可根據這些因使用者進行操控動作而無法感測到光線231的感光畫素來推算出操控位置。The optical touch display device 200 can further include a light source 230 disposed on the non-display area 213 of the first substrate 212 to provide light 231 passing through the area above the display layer 214 to the light sensing module 220. The light 231 provided by the light source 230 is, for example, infrared light, but is not limited thereto. In addition, after the light 231 enters the light sensing module 220 from the photosensitive window 223, at least a portion of the photosensitive pixels (not shown) of the light sensing module 220 can sense the light 231. When the user performs a manipulation operation on the second substrate 216, the transmission path of the partial light 231 is changed, so that part of the photosensitive pixels that originally can sense the light 231 cannot sense the light 231. In this way, the manipulation position can be estimated based on the sensible pixels that cannot be sensed by the user's manipulation operation.
有別於習知技術將光感測模組配置於整個顯示單元上方，本實施例將光感測模組220與光源230直接設置於用來承載顯示層214的第一基板212之非顯示區213上，而且在光感測模組220與顯示單元210之間不需另外設置透明基板，所以可有效縮減光學式觸控顯示裝置200的厚度，使其具有薄厚度的優點。此外，在另一實施例中，光學式觸控顯示裝置可更包括用來包覆部份顯示單元210與光感測模組220的框架240(如圖3所示)。Different from the prior art, the light sensing module is disposed above the entire display unit. In this embodiment, the light sensing module 220 and the light source 230 are directly disposed on the non-display area of the first substrate 212 for carrying the display layer 214. 213, and the transparent sensing substrate 220 and the display unit 210 do not need to be separately provided with a transparent substrate, so that the thickness of the optical touch display device 200 can be effectively reduced to have a thin thickness. In addition, in another embodiment, the optical touch display device may further include a frame 240 (shown in FIG. 3) for covering part of the display unit 210 and the light sensing module 220.
圖4是本發明另一實施例之光學式觸控裝置的俯視示意圖。請參照圖4，本實施例之顯示區211例如呈矩形，而光感測模組220的數量可為多個(如兩個)，其設置於顯示區211的角落。此外，光源230包括至少一發光元件232(圖4是以兩個為例)與至少一導光元件234(圖4是以三個為例)。發光元件232用以提供上述之光線231，而導光元件234配置於發光元件232旁。導光元件234具有一入光面234a與一出光面234b，入光面234a接收光線231，且光線231從出光面234b出射，並通過顯示層(圖未示)上方。在一實施例中，發光元件232例如是紅外光發光元件，但不以此為限。4 is a top plan view of an optical touch device according to another embodiment of the present invention. Referring to FIG. 4 , the display area 211 of the embodiment is, for example, rectangular, and the number of the light sensing modules 220 may be multiple (eg, two), which are disposed at the corners of the display area 211 . In addition, the light source 230 includes at least one light-emitting element 232 (for example, two in FIG. 4) and at least one light-guiding element 234 (FIG. 4 is exemplified by three). The light-emitting element 232 is configured to provide the light ray 231 described above, and the light guide element 234 is disposed adjacent to the light-emitting element 232. The light guiding element 234 has a light incident surface 234a and a light exiting surface 234b. The light incident surface 234a receives the light ray 231, and the light ray 231 exits from the light emitting surface 234b and passes over the display layer (not shown). In an embodiment, the light-emitting element 232 is, for example, an infrared light-emitting element, but is not limited thereto.
雖然圖4是以兩個光感測模組220為例，但在其他實施例中，可視設計需求而使用更多的光感測模組220(如三個或四個)，而每一光感測模組220例如是配置於顯示區211的其中一角落。Although FIG. 4 is exemplified by two light sensing modules 220, in other embodiments, more light sensing modules 220 (such as three or four) are used for visual design requirements, and each light is used. The sensing module 220 is disposed, for example, at one of the corners of the display area 211.
圖5是本發明另一實施例之光學式觸控顯示裝置的示意圖。請參照圖5，在本實施例中，光感測模組220a包括一感測單元222以及一固定單元224。固定單元224將感測單元222固定於第一基板212的非顯示區213上方且將感測單元222墊高至顯示單元210上方，致使感測單元222可藉由至少部份感光視窗223而感測在顯示單元210上方之光線231並輸出一感測訊號。FIG. 5 is a schematic diagram of an optical touch display device according to another embodiment of the present invention. Referring to FIG. 5 , in the embodiment, the light sensing module 220 a includes a sensing unit 222 and a fixing unit 224 . The fixing unit 224 fixes the sensing unit 222 over the non-display area 213 of the first substrate 212 and raises the sensing unit 222 above the display unit 210, so that the sensing unit 222 can be sensed by at least part of the photosensitive window 223. The light 231 above the display unit 210 is measured and a sensing signal is output.
此外，光感測模組220a可更包括一透鏡單元226與一電路板228。透鏡單元226可匯聚光線231，以將從感光視窗223進入之光線231提供至感測單元222，而電路板228電性連接感測單元222而輸出與感測單元222所輸出之感測訊號相對應的訊號。電路板228所輸出的訊號可以是經處理後的訊號，亦即操控位置已被計算出。當然，電路板228亦可不具計算操控位置的功能，而電路板228僅是將訊號傳遞至一處理單元(圖未示)以計算出操控位置。另外，固定單元224將透鏡單元226以及感測單元222固定於第一基板212上並墊高至感光視窗223後方，致使感測單元222可透過透鏡單元226感測由感光視窗223通過且在顯示單元210上方之光線231。在另一實施例中，如圖6所示，固定單元224a可更固定電路板228。In addition, the light sensing module 220a can further include a lens unit 226 and a circuit board 228. The lens unit 226 can converge the light 231 to provide the light 231 entering from the photosensitive window 223 to the sensing unit 222, and the circuit board 228 is electrically connected to the sensing unit 222 to output the sensing signal outputted by the sensing unit 222. Corresponding signal. The signal output by the circuit board 228 can be a processed signal, that is, the manipulation position has been calculated. Of course, the circuit board 228 may not have the function of calculating the control position, and the circuit board 228 only transmits the signal to a processing unit (not shown) to calculate the manipulation position. In addition, the fixing unit 224 fixes the lens unit 226 and the sensing unit 222 on the first substrate 212 and is raised to the rear of the photosensitive window 223 , so that the sensing unit 222 can pass through the lens unit 226 and pass through the photosensitive window 223 and display Light ray 231 above unit 210. In another embodiment, as shown in FIG. 6, the fixing unit 224a can fix the circuit board 228 more.
圖7是本發明另一實施例之一種光學式觸控顯示裝置的示意圖。請參照圖7，本實施例之光學式觸控裝置的光感測模組220b包括感測單元222、固定單元224b及透鏡單元226。固定單元224b將感測單元222固定於第一基板212的非顯示區213上方且將整個感測單元222墊高至顯示單元210上方，致使感測單元222可藉由整個感光視窗223而感測在顯示單元210上方之光線231並輸出感測訊號。此外，本實施例之光感測模組220b可更包括電性連接至感測單元222的電路板(圖未示)。FIG. 7 is a schematic diagram of an optical touch display device according to another embodiment of the present invention. Referring to FIG. 7 , the light sensing module 220 b of the optical touch device of the embodiment includes a sensing unit 222 , a fixing unit 224 b , and a lens unit 226 . The fixing unit 224 is fixed to the non-display area 213 of the first substrate 212 and the entire sensing unit 222 is raised above the display unit 210, so that the sensing unit 222 can be sensed by the entire photosensitive window 223. The light 231 above the display unit 210 and outputs a sensing signal. In addition, the light sensing module 220b of the embodiment may further include a circuit board (not shown) electrically connected to the sensing unit 222.
圖8是本發明另一實施例之一種光學式觸控顯示裝置的俯視示意圖。請參照圖8，本實施例之光學式觸控顯示裝置200’的兩個光感測模組220’是配置於觸控區211的同一側邊211a旁，且光感測模組220’的感光視窗223例如是平行觸控區211的側邊211a。此外，每一光感測模組220’的感測單元222’具有多個感測區225，且每一感測區225具有一視場F。光感測模組220’更包括至少一反射件227，配置於至少部份感測區225之前，以轉折對應之感測區225的視場F。上述之反射件227例如是稜鏡。藉由反射件227轉折部份感測區225的視場F，可使光學式觸控顯示裝置200’的光感測模組220’能配置於觸控區211的同一側邊211a旁。如此，可使光感測模組220’的設置位置更具彈性。FIG. 8 is a top plan view of an optical touch display device according to another embodiment of the present invention. Referring to FIG. 8 , the two light sensing modules 220 ′ of the optical touch display device 200 ′ of the present embodiment are disposed adjacent to the same side 211 a of the touch area 211 , and the light sensing module 220 ′ The photosensitive window 223 is, for example, a side 211a of the parallel touch area 211. In addition, the sensing unit 222' of each light sensing module 220' has a plurality of sensing regions 225, and each sensing region 225 has a field of view F. The light sensing module 220' further includes at least one reflective member 227 disposed in front of at least a portion of the sensing region 225 to turn the field of view F of the corresponding sensing region 225. The above-mentioned reflector 227 is, for example, a crucible. The light sensing module 220' of the optical touch display device 200' can be disposed beside the same side 211a of the touch area 211 by the reflection of the field of view F of the portion of the sensing area 225. In this way, the position of the light sensing module 220' can be made more flexible.
需注意的是，雖然圖8中省略了光源，但本實施例之光學式觸控顯示裝置200’亦可包括光源。此外，本發明並不限定光感測模組220’的數量，且光感測模組220’亦可設置於觸控區211的相對兩側邊旁。It should be noted that although the light source is omitted in FIG. 8, the optical touch display device 200' of the present embodiment may also include a light source. In addition, the present invention does not limit the number of the light sensing modules 220', and the light sensing module 220' may also be disposed beside the opposite sides of the touch area 211.
綜上所述，本發明各實施例的光感測模組至少具有下列優點其中之一：In summary, the light sensing module of each embodiment of the present invention has at least one of the following advantages:
1.在本發明中，光感測模組是配置於用來承載顯示層的第一基板上，而非配置於整個顯示單元上方。而且，相較於習知技術，本發明之光感測模組還省略了設置在顯示單元上方的透明基板。因此，本發明之光學式觸控顯示裝置具有較薄的厚度。1. In the present invention, the light sensing module is disposed on the first substrate for carrying the display layer, rather than being disposed above the entire display unit. Moreover, the light sensing module of the present invention also omits the transparent substrate disposed above the display unit compared to the prior art. Therefore, the optical touch display device of the present invention has a relatively thin thickness.
2.在一實施例中，由於在光感測模組之部份感測區之前設置反射件，以轉折感測區的視場，所以可使光感測模組的設置位置更具彈性。2. In an embodiment, since the reflecting member is disposed before a portion of the sensing region of the light sensing module to turn the field of view of the sensing region, the position of the light sensing module can be made more flexible.
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，本發明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。Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and it is intended to be a part of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.
100．．．光學式觸控顯示裝置100. . . Optical touch display device
110．．．液晶顯示單元110. . . Liquid crystal display unit
111．．．下基板111. . . Lower substrate
112．．．上基板112. . . Upper substrate
113．．．液晶層113. . . Liquid crystal layer
114．．．背光源114. . . Backlight
115．．．框架115. . . frame
116．．．液晶顯示面板116. . . LCD panel
120．．．觸控單元120. . . Touch unit
122．．．光源122. . . light source
123．．．光線123. . . Light
124．．．光感測模組124. . . Light sensing module
130．．．透明基板130. . . Transparent substrate
200、200’．．．光學式觸控顯示裝置200, 200’. . . Optical touch display device
210．．．顯示單元210. . . Display unit
211．．．顯示區211. . . Display area
211a．．．側邊211a. . . Side
212．．．第一基板212. . . First substrate
213．．．非顯示區213. . . Non-display area
213a．．．上表面213a. . . Upper surface
214．．．顯示層214. . . Display layer
216．．．第二基板216. . . Second substrate
217．．．間隙物217. . . Interstitial
218．．．背光源218. . . Backlight
220、220a、220b、220’．．．光感測模組220, 220a, 220b, 220’. . . Light sensing module
221．．．側表面221. . . Side surface
222、222’．．．感測單元222, 222’. . . Sensing unit
223．．．感光視窗223. . . Photosensitive window
224、224a、224b．．．固定單元224, 224a, 224b. . . Fixed unit
225．．．感測區225. . . Sensing area
226．．．透鏡單元226. . . Lens unit
227．．．反射件227. . . Reflector
228．．．電路板228. . . Circuit board
230．．．光源230. . . light source
231．．．光線231. . . Light
232．．．發光元件232. . . Light-emitting element
234．．．導光元件234. . . Light guiding element
234a．．．入光面234a. . . Glossy surface
234b．．．出光面234b. . . Glossy surface
240．．．框架240. . . frame
F．．．視場F. . . Field of view
圖1是習知一種光學式觸控顯示裝置之示意圖。FIG. 1 is a schematic diagram of a conventional optical touch display device.
圖2是本發明一實施例之一種光學式觸控顯示裝置的示意圖。2 is a schematic diagram of an optical touch display device according to an embodiment of the invention.
圖3是本發明另一實施例之一種光學式觸控顯示裝置的示意圖。3 is a schematic diagram of an optical touch display device according to another embodiment of the present invention.
圖4是本發明另一實施例之光學式觸控顯示裝置的俯視示意圖。4 is a top plan view of an optical touch display device according to another embodiment of the present invention.
圖5是本發明另一實施例之光學式觸控顯示裝置的示意圖。FIG. 5 is a schematic diagram of an optical touch display device according to another embodiment of the present invention.
圖6是本發明另一實施例之光學式觸控顯示裝置的光感測模組的示意圖。FIG. 6 is a schematic diagram of a light sensing module of an optical touch display device according to another embodiment of the present invention.
圖7是本發明另一實施例之一種光學式觸控顯示裝置的示意圖。FIG. 7 is a schematic diagram of an optical touch display device according to another embodiment of the present invention.
圖8是本發明另一實施例之一種光學式觸控顯示裝置的俯視示意圖。FIG. 8 is a top plan view of an optical touch display device according to another embodiment of the present invention.
200．．．光學式觸控顯示裝置200. . . Optical touch display device
210．．．顯示單元210. . . Display unit
211．．．顯示區211. . . Display area
212．．．第一基板212. . . First substrate
213．．．非顯示區213. . . Non-display area
213a．．．上表面213a. . . Upper surface
214．．．顯示層214. . . Display layer
216．．．第二基板216. . . Second substrate
217．．．間隙物217. . . Interstitial
218．．．背光源218. . . Backlight
220．．．光感測模組220. . . Light sensing module
221．．．側表面221. . . Side surface
223．．．感光視窗223. . . Photosensitive window
230．．．光源230. . . light source
231．．．光線231. . . Light
Claims (9)
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| US12/940,590 US20110285643A1 (en) | 2010-05-22 | 2010-11-05 | Optical touch display device |
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| Application Number | Priority Date | Filing Date | Title |
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| US34740410P | 2010-05-22 | 2010-05-22 |
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| TW (1) | TWI401595B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080121442A1 (en) * | 2006-11-27 | 2008-05-29 | Microsoft Corporation | Infrared sensor integrated in a touch panel |
| TWM371272U (en) * | 2009-04-01 | 2009-12-21 | Pixart Imaging Inc | Optical touch control module |
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| CN201421600Y (en) * | 2009-04-20 | 2010-03-10 | 原相科技股份有限公司 | Optical touch control module |
| CN201417354Y (en) * | 2009-06-11 | 2010-03-03 | 华映视讯（吴江）有限公司 | Touch display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080121442A1 (en) * | 2006-11-27 | 2008-05-29 | Microsoft Corporation | Infrared sensor integrated in a touch panel |
| TWM371272U (en) * | 2009-04-01 | 2009-12-21 | Pixart Imaging Inc | Optical touch control module |
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