CN102117151B - Optical touch display device - Google Patents

Abstract

An optical touch display device comprises a backlight module, a display panel and at least one light detector. The backlight module is suitable for providing a visible light beam and an invisible light beam. The display panel is arranged on one side of the backlight module. The display panel is provided with a sensing space in front and is positioned between the backlight module and the sensing space. The visible light beam and the invisible light beam are suitable for penetrating through the display panel and transmitting to the sensing space. The light detector is arranged outside the display panel to sense the invisible light beams from the sensing space. The optical touch display device of the invention has lower cost and thinner thickness.

Description

Translated fromChinese

光学触控显示装置Optical touch display device

【技术领域】【Technical field】

本发明是有关于一种触控显示装置，且特别是有关于一种光学触控显示装置。The present invention relates to a touch display device, and in particular to an optical touch display device.

【背景技术】【Background technique】

随着光电科技的进步，采用滑鼠来控制电脑及荧幕中的物件的方式已无法满足使用者的需求，因此，比滑鼠控制更为人性化的方法便逐渐被发展出来。在这些人性化的方法中，以手指触控的方式最接近于人类一般日常生活中的经验，特别是对于无法灵活地操作滑鼠的年长者或小孩，都能够轻易的采用手指来触控，这点可从一些自动提款机已采用触控荧幕来获得部分的证实。With the advancement of optoelectronic technology, the method of using a mouse to control objects in computers and screens can no longer meet the needs of users. Therefore, a more humanized method than mouse control has gradually been developed. Among these humanized methods, finger touch is the closest to human experience in daily life, especially for the elderly or children who cannot flexibly operate the mouse, they can easily use fingers to touch , which can be partly confirmed by the fact that some ATMs have adopted touch screens.

此外，传统的笔记本电脑若在不外接滑鼠的情况下，通常是借由位于按键旁的触控板及轨迹点(track point)来控制游标。然而，对一般使用者而言，利用按键旁的触控板或轨迹点来控制游标可能不如采用滑鼠灵活，而配置于荧幕上的触控面板可解决这样的问题。这是因为触控面板的控制方式是一种相当直觉化的控制方式，使用者直接触碰荧幕来操作物件。如此一来，当触控面板应用于笔记本电脑中时，即使使用者是处于不方便外接滑鼠的操作环境下，仍能够利用触控面板来灵活流畅地操作。In addition, if a traditional notebook computer does not have an external mouse, the cursor is usually controlled by a touchpad and a track point located next to the buttons. However, for general users, using the touchpad or track point next to the button to control the cursor may not be as flexible as using a mouse, and the touch panel configured on the screen can solve this problem. This is because the control method of the touch panel is a rather intuitive control method, and the user directly touches the screen to operate the object. In this way, when the touch panel is applied to a notebook computer, even if the user is in an operating environment where an external mouse is inconvenient, the touch panel can still be used to operate flexibly and smoothly.

现今一般的触控面板设计大致可区分为电阻式、电容式、光学式、声波式、以及电磁式等。以光学式触控显示装置而言，一般通常包含显示器、红外光源、导光单元、感测器、及处理器，其中显示器包含背光模组与显示面板。红外光源设置于显示面旁用来产生红外光束，红外光源所产生的红外光束通过导光单元后被感测器所侦测。当触控物体接触面板时，处理器根据感测器所感测到的红外光强度变化来判断触碰点的位置。然而，由于红外光源与用以导引红外光的导光单元是设于显示面旁，且独立于背光模组之外，这会导致触控显示装置整体的厚度增加、光学元件数量增加及成本的增加，此外，亦会拉长组装的工时。Today's common touch panel designs can be roughly divided into resistive, capacitive, optical, acoustic, and electromagnetic types. For an optical touch display device, it generally includes a display, an infrared light source, a light guide unit, a sensor, and a processor, wherein the display includes a backlight module and a display panel. The infrared light source is arranged beside the display surface to generate infrared light beams, and the infrared light beams generated by the infrared light source pass through the light guide unit and are detected by the sensor. When the touch object touches the panel, the processor judges the position of the touch point according to the change of the intensity of the infrared light sensed by the sensor. However, since the infrared light source and the light guide unit for guiding the infrared light are arranged beside the display surface and are independent of the backlight module, this will increase the overall thickness of the touch display device, increase the number of optical elements and increase the cost. The increase, in addition, will also lengthen the man-hours of assembly.

【发明内容】【Content of invention】

本发明提供一种光学触控显示装置，可具有较低的成本与较薄的厚度。The invention provides an optical touch display device with lower cost and thinner thickness.

本发明的其他目的和优点可以从本发明所揭露的技术特征中得到进一步的了解。Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

为达上述之一或部份或全部目的或是其他目的，本发明之一实施例提出一种光学触控显示装置，包括一背光模组、一显示面板及至少一光侦测器。背光模组适于提供一可见光束与一不可见光束。显示面板配置于背光模组的一侧。显示面板前有一感测空间，且显示面板位于背光模组与感测空间之间。可见光束与不可见光束适于穿透显示面板而传递至感测空间。光侦测器配置于显示面板外。当一触控物体进入感测空间时，触控物体将部分不可见光束反射，且光侦测器配置于触控物体所反射的部分不可见光束的传递路径上，以侦测此部分不可见光束。传递至光侦测器的此部分不可见光束在光侦测器所侦测到的一画面上产生一亮区，且光学触控显示装置适于根据亮区在画面中的位置判断出触控物体在感测空间中的位置。To achieve one or part or all of the above objectives or other objectives, an embodiment of the present invention provides an optical touch display device, including a backlight module, a display panel and at least one light detector. The backlight module is suitable for providing a visible light beam and an invisible light beam. The display panel is arranged on one side of the backlight module. There is a sensing space in front of the display panel, and the display panel is located between the backlight module and the sensing space. The visible light beam and the invisible light beam are adapted to pass through the display panel to the sensing space. The light detector is arranged outside the display panel. When a touch object enters the sensing space, the touch object reflects part of the invisible light beam, and the light detector is arranged on the transmission path of the part of the invisible light beam reflected by the touch object to detect this part of the invisible light beam. The part of the invisible light beam transmitted to the light detector generates a bright area on a screen detected by the light detector, and the optical touch display device is adapted to judge the touch according to the position of the bright area in the screen The position of the object in the sensing space.

本发明的实施例可具有下列优点的至少其一。在本发明的实施例的光学触控显示装置中，由于背光模组可同时发出可见光束与不可见光束，因此显示面板上及感测空间旁可不用再设置其他不可见光源与导光单元，如此可降低光学触控显示装置的整体厚度、光学元件数量及成本，且能够缩短组装工时。Embodiments of the present invention may have at least one of the following advantages. In the optical touch display device of the embodiment of the present invention, since the backlight module can emit visible light beams and invisible light beams at the same time, there is no need to set other invisible light sources and light guide units on the display panel and beside the sensing space. In this way, the overall thickness of the optical touch display device, the number of optical components and the cost can be reduced, and the assembly man-hour can be shortened.

为让本发明之上述特征和优点能更明显易懂，下文特举实施例，并配合所附图式作详细说明如下。In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

【附图说明】【Description of drawings】

图1A为本发明之一实施例的光学触控显示装置的正视示意图。FIG. 1A is a schematic front view of an optical touch display device according to an embodiment of the present invention.

图1B为图1A的光学触控显示装置的爆炸图。FIG. 1B is an exploded view of the optical touch display device shown in FIG. 1A .

图1C为图1A的光学触控显示装置沿着I-I线的剖面示意图。FIG. 1C is a schematic cross-sectional view of the optical touch display device in FIG. 1A along line I-I.

图1D为图1A的光学触控显示装置沿着II-II线的剖面示意图。FIG. 1D is a schematic cross-sectional view of the optical touch display device in FIG. 1A along line II-II.

图2A为本发明的另一实施例的光学触控显示装置的爆炸图。FIG. 2A is an exploded view of an optical touch display device according to another embodiment of the present invention.

图2B为图2A中的可见光发光元件、不可见光发光元件、承载器及导光板的剖面示意图。2B is a schematic cross-sectional view of the visible light emitting device, the invisible light emitting device, the carrier and the light guide plate in FIG. 2A .

图3为本发明的又一实施例的光学触控显示装置的爆炸图。FIG. 3 is an exploded view of an optical touch display device according to another embodiment of the present invention.

图4A为本发明的再一实施例的光学触控显示装置的爆炸图。FIG. 4A is an exploded view of an optical touch display device according to yet another embodiment of the present invention.

图4B绘示图4A中的发光元件。FIG. 4B illustrates the light emitting device in FIG. 4A.

图5绘示本发明的另一实施例的发光元件。FIG. 5 illustrates a light emitting device according to another embodiment of the present invention.

图6为本发明的又一实施例的光学触控显示装置的剖面示意图。FIG. 6 is a schematic cross-sectional view of an optical touch display device according to another embodiment of the present invention.

图7为本发明的再一实施例的光学触控显示装置的正视示意图。FIG. 7 is a schematic front view of an optical touch display device according to yet another embodiment of the present invention.

图8为本发明的另一实施例的光学触控显示装置的剖面示意图。FIG. 8 is a schematic cross-sectional view of an optical touch display device according to another embodiment of the present invention.

50：触控物体50: Touch objects

100、100a、100b、100c、100d、100e、100f：光学触控显示装置100, 100a, 100b, 100c, 100d, 100e, 100f: optical touch display device

110：显示面板110: display panel

112：主动元件阵列基板112: Active element array substrate

114：液晶层114: liquid crystal layer

116：对向基板116: opposite substrate

120、120a、120b、120c：光侦测器120, 120a, 120b, 120c: light detectors

130：处理单元130: processing unit

140：前框140: front frame

150、150d：背框150, 150d: back frame

200、200’、200c：背光模组200, 200’, 200c: backlight module

210、210’、210”：导光板210, 210’, 210”: light guide plate

210d：扩散板210d: Diffusion plate

212：第一表面212: First Surface

214：第二表面214: second surface

216、216a、216b、216b’：入光面216, 216a, 216b, 216b': light incident surface

218、218a、218b：散射微结构218, 218a, 218b: Scattering microstructures

220：可见光发光元件220: Visible light emitting element

221：可见光束221: visible beam

222：可见光发光二极管晶片222: Visible light-emitting diode chip

225、225’：发光元件225, 225': light emitting element

227：发光二极管晶片227: LED chip

228、228’：封装胶体228, 228': encapsulation colloid

230：不可见光发光元件230: Invisible light emitting element

231：不可见光束231: Invisible Beam

232：不可见光发光二极管晶片232: Invisible light-emitting diode chip

240：反射单元240: reflection unit

250、250a、250b、250d：承载器250, 250a, 250b, 250d: Carrier

260：光学膜片组260: Optical film set

S：感测空间S: Sensing Space

【具体实施方式】【Detailed ways】

有关本发明的前述及其他技术内容、特点与功效，在以下配合参考图式之一较佳实施例的详细说明中，将可清楚的呈现。以下实施例中所提到的方向用语，例如：上、下、左、右、前或后等，仅是参考附加图式的方向。因此，使用的方向用语是用来说明并非用来限制本发明。The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only directions referring to the attached drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.

图1A为本发明之一实施例的光学触控显示装置的正视示意图，图1B为图1A的光学触控显示装置的爆炸图，图1C为图1A的光学触控显示装置沿着I-I线的剖面示意图，且图1D为图1A的光学触控显示装置沿着II-II线的剖面示意图。请参照图1A至图1D，本实施例的光学触控显示装置100包括一背光模组200、一显示面板110及至少一光侦测器120(在图1A与图1B中是以两个光侦测器120a、120b为例)。背光模组200适于提供一可见光束221(如图1D所绘示)与一不可见光束231(如图1C所绘示)。在本实施例中，背光模组200包括一导光板210、至少一可见光发光元件220(在图1B中是以数个可见光发光元件220为例)及至少一不可见光发光元件230(图1B中是以数个不可见光发光元件230为例)。具体而言，可见光发光元件220例如为可见光发光二极管(light emitting diode，LED)，不可见光发光元件230例如为红外光发光二极管，且不可见光束231例如为一红外光束。FIG. 1A is a schematic front view of an optical touch display device according to an embodiment of the present invention, FIG. 1B is an exploded view of the optical touch display device of FIG. 1A , and FIG. 1C is a view of the optical touch display device of FIG. 1A along line I-I. 1D is a schematic cross-sectional view of the optical touch display device shown in FIG. 1A along line II-II. 1A to 1D, the opticaltouch display device 100 of this embodiment includes abacklight module 200, adisplay panel 110 and at least one light detector 120 (in FIG. 1A and FIG.detectors 120a, 120b as an example). Thebacklight module 200 is suitable for providing a visible light beam 221 (as shown in FIG. 1D ) and an invisible light beam 231 (as shown in FIG. 1C ). In this embodiment, thebacklight module 200 includes alight guide plate 210, at least one visible light emitting element 220 (in FIG. 1B several visiblelight emitting elements 220 are taken as an example) and at least one invisible light emitting element 230 ( Take several invisiblelight emitting elements 230 as an example). Specifically, the visiblelight emitting element 220 is, for example, a visible light emitting diode (LED), the invisiblelight emitting element 230 is, for example, an infrared light emitting diode, and theinvisible light beam 231 is, for example, an infrared light beam.

导光板210具有一朝向显示面板110的第一表面212、一背对显示面板110的第二表面214及一连接第一表面212与第二表面214的入光面216。可见光发光元件220适于发出可见光束221，其中可见光束221适于经由入光面216进入导光板210中，且适于经由第一表面212传递至显示面板110。不可见光发光元件230适于发出不可见光束231，其中不可见光束231适于经由入光面216进入导光板210中，且适于经由第一表面212传递至显示面板110。在本实施例中，背光模组200更包括一反射单元240，配置于第二表面214的一侧，以将来自第二表面214的可见光束221与不可见光束231反射回导光板210，其中反射单元240例如为一反射片。Thelight guide plate 210 has afirst surface 212 facing thedisplay panel 110 , asecond surface 214 facing away from thedisplay panel 110 , and alight incident surface 216 connecting thefirst surface 212 and thesecond surface 214 . The visiblelight emitting element 220 is suitable for emitting avisible light beam 221 , wherein thevisible light beam 221 is suitable for entering thelight guide plate 210 through thelight incident surface 216 and suitable for passing to thedisplay panel 110 through thefirst surface 212 . The invisiblelight emitting element 230 is suitable for emitting aninvisible light beam 231 , wherein theinvisible light beam 231 is suitable for entering thelight guide plate 210 through thelight incident surface 216 and suitable for passing to thedisplay panel 110 through thefirst surface 212 . In this embodiment, thebacklight module 200 further includes areflection unit 240 disposed on one side of thesecond surface 214 to reflect thevisible light beam 221 and theinvisible light beam 231 from thesecond surface 214 back to thelight guide plate 210, wherein Thereflective unit 240 is, for example, a reflective sheet.

具体而言，当可见光束221与不可见光束231经由入光面216进入导光板210后，会因不断地被第一表面212与第二表面214全反射而被局限于导光板210中。然而，导光板210的表面(在本实施例是以第二表面214为例)上的散射微结构218会破坏全反射，且使部分可见光束221与不可见光束231散射至第一表面212，并经由第一表面212传递至导光板210外。此外，另一部分可见光束221与不可见光束231被散射微结构218散射至反射单元240。随后，反射单元240将可见光束221与不可见光束231反射，而使可见光束221与不可见光束231依序穿透第二表面214与第一表面212，以在第一表面212上形成可见光面光源与不可见光面光源。值得注意的是，在其他实施例中，散射微结构218亦可以配置于第一表面212上，或者同时配置于第一表面212与第二表面214上。Specifically, when thevisible light beam 221 and theinvisible light beam 231 enter thelight guide plate 210 through thelight incident surface 216 , they will be confined in thelight guide plate 210 due to continuous total reflection by thefirst surface 212 and thesecond surface 214 . However, thescattering microstructure 218 on the surface of the light guide plate 210 (in this embodiment, thesecond surface 214 is taken as an example) will destroy the total reflection, and make part of thevisible light beam 221 and theinvisible light beam 231 scatter to thefirst surface 212, and transmitted to the outside of thelight guide plate 210 through thefirst surface 212 . In addition, another part of thevisible light beam 221 and theinvisible light beam 231 is scattered by thescattering microstructure 218 to thereflection unit 240 . Subsequently, the reflectingunit 240 reflects thevisible light beam 221 and theinvisible light beam 231, so that thevisible light beam 221 and theinvisible light beam 231 sequentially penetrate thesecond surface 214 and thefirst surface 212, so as to form a visible light surface on thefirst surface 212 Light source and invisible surface light source. It should be noted that, in other embodiments, thescattering microstructure 218 may also be disposed on thefirst surface 212 , or be disposed on thefirst surface 212 and thesecond surface 214 at the same time.

在本实施例中，这些可见光发光元件220与这些不可见光发光元件230交替排列于入光面216旁。此外，在本实施例中，背光模组200更包括一承载器250，其中可见光发光元件220与不可见光发光元件230交替配置于该承载器250上。承载器250例如为一电路板，且电性连接至可见光发光元件220与不可见光发光元件230。In this embodiment, the visiblelight emitting elements 220 and the invisiblelight emitting elements 230 are alternately arranged beside thelight incident surface 216 . In addition, in this embodiment, thebacklight module 200 further includes acarrier 250 , wherein the visiblelight emitting elements 220 and the invisiblelight emitting elements 230 are alternately arranged on thecarrier 250 . Thecarrier 250 is, for example, a circuit board, and is electrically connected to the visiblelight emitting element 220 and the invisiblelight emitting element 230 .

显示面板110配置于背光模组200的一侧。显示面板110前有一感测空间S，且显示面板110位于背光模组200与感测空间S之间。可见光束221与不可见光束231(例如来自第一表面212的可见光束221与不可见光束231)适于穿透显示面板110而传递至感测空间S。在本实施例中，显示面板110例如为一液晶显示面板，且显示面板110包括一主动元件阵列基板112、一液晶层114及一对向基板116。液晶层114配置于主动元件阵列基板112与对向基板116之间，且主动元件阵列基板112配置于液晶层114与背光模组200之间。在本实施例中，主动元件阵列基板112例如为一薄膜电晶体阵列基板(thin film transistor array substrate，TFT arraysubstrate)，且对向基板116例如为一彩色滤光阵列基板。Thedisplay panel 110 is disposed on one side of thebacklight module 200 . There is a sensing space S in front of thedisplay panel 110 , and thedisplay panel 110 is located between thebacklight module 200 and the sensing space S. Thevisible light beam 221 and the invisible light beam 231 (for example, thevisible light beam 221 and theinvisible light beam 231 from the first surface 212 ) are adapted to pass through thedisplay panel 110 to the sensing space S. In this embodiment, thedisplay panel 110 is, for example, a liquid crystal display panel, and thedisplay panel 110 includes an activeelement array substrate 112 , aliquid crystal layer 114 and a pair ofopposite substrates 116 . Theliquid crystal layer 114 is disposed between the activedevice array substrate 112 and theopposite substrate 116 , and the activedevice array substrate 112 is disposed between theliquid crystal layer 114 and thebacklight module 200 . In this embodiment, the activedevice array substrate 112 is, for example, a thin film transistor array substrate (TFT array substrate), and theopposite substrate 116 is, for example, a color filter array substrate.

光侦测器120配置于显示面板110外，以感测来自感测空间S的不可见光束231。在本实施例中，光侦测器120配置于感测空间S旁，且配置于显示面板110的背对背光模组200的一侧。光侦测器120例如为互补式金氧半导体感测元件(complementary metal oxide semiconductor sensor，CMOS sensor)、电荷耦合元件(charge coupled device，CCD)、光电倍增管(photo multiplier tube，PMT)或其他影像感测器。在本实施例中，光侦测器120所侦测的范围涵盖显示面板110的整个显示区域的正上方的感测空间S。当一触控物体50(例如使用者的手指、触控笔的笔尖或其他适当的物体)进入感测空间S时，会使照射于触控物体50上的不可见光束231产生散射。如此一来，触控物体50会将部分不可见光束231反射至光侦测器120，亦即光侦测器120配置于触控物体50所反射的此部分不可见光束的传递路径上，以在光侦测器120所侦测到的一画面上产生一亮区，其中此亮区例如为一亮点。此外，感测空间S中没有被触控物体50占据的其他部分由于没有物体可将不可见光束231反射至光侦测器120，因此会在光侦测器120所侦测到的画面上形成暗区(即暗背景)。光学触控显示装置100适于根据亮区在画面中的位置判断出触控物体50在感测空间S中的位置。具体而言，光学触控显示装置100可更包括一处理单元130，电性连接至光侦测器120，在本实施例中例如是处理单元130同时电性连接至光侦测器120a与120b。处理单元130适于根据亮区在画面中的位置判断出触控物体50在感测空间S中的位置。Thelight detector 120 is disposed outside thedisplay panel 110 to sense theinvisible light beam 231 from the sensing space S. In this embodiment, thelight detector 120 is disposed beside the sensing space S, and is disposed on a side of thedisplay panel 110 facing away from thebacklight module 200 . Thelight detector 120 is, for example, a complementary metal oxide semiconductor sensor (CMOS sensor), a charge coupled device (CCD), a photomultiplier tube (PMT) or other images. sensor. In this embodiment, the detection range of thelight detector 120 covers the sensing space S immediately above the entire display area of thedisplay panel 110 . When a touch object 50 (such as a user's finger, a tip of a stylus, or other suitable objects) enters the sensing space S, theinvisible light beam 231 irradiated on thetouch object 50 will be scattered. In this way, thetouch object 50 will reflect part of theinvisible light beam 231 to thelight detector 120, that is, thelight detector 120 is arranged on the transmission path of the part of the invisible light beam reflected by thetouch object 50, so as to A bright area is generated on a frame detected by thelight detector 120 , where the bright area is, for example, a bright spot. In addition, other parts of the sensing space S that are not occupied by thetouch object 50 will be formed on the screen detected by thelight detector 120 because there is no object that can reflect theinvisible light beam 231 to thephotodetector 120 . Dark areas (i.e. dark backgrounds). The opticaltouch display device 100 is adapted to determine the position of thetouch object 50 in the sensing space S according to the position of the bright area in the screen. Specifically, the opticaltouch display device 100 may further include aprocessing unit 130 electrically connected to thephotodetector 120. In this embodiment, for example, theprocessing unit 130 is electrically connected to thephotodetectors 120a and 120b at the same time. . Theprocessing unit 130 is adapted to determine the position of thetouch object 50 in the sensing space S according to the position of the bright area in the screen.

在本实施例中，背光模组200更包括一光学膜片组260，配置于导光板210与显示面板110之间，其中光学膜片组260包括增亮膜(brightnessenhancement film，BEF)、棱镜片(prism sheet)及扩散片的至少其一，亦即包括增亮膜、棱镜片、扩散片或这些膜片的任意组合。In this embodiment, thebacklight module 200 further includes anoptical film set 260 disposed between thelight guide plate 210 and thedisplay panel 110, wherein theoptical film set 260 includes a brightness enhancement film (brightnessenhancement film, BEF), a prism sheet At least one of (prism sheet) and diffusion sheet, which includes brightness enhancement film, prism sheet, diffusion sheet or any combination of these films.

在本实施例中，光学触控显示装置100更包括一前框140，覆盖显示面板110的边缘。光侦测器120配置于前框140上，且部分前框140位于光侦测器120与显示面板110的边缘之间。此外，在本实施例中，光侦测器120a与120b分别配置于前框140的相邻两角落上。再者，在本实施例中，光学触控显示装置100更包括一背框150，背框150用以容置承载器250及反射单元240。In this embodiment, the opticaltouch display device 100 further includes afront frame 140 covering the edge of thedisplay panel 110 . Thelight detector 120 is disposed on thefront frame 140 , and part of thefront frame 140 is located between thelight detector 120 and the edge of thedisplay panel 110 . In addition, in this embodiment, thelight detectors 120 a and 120 b are respectively disposed on two adjacent corners of thefront frame 140 . Furthermore, in this embodiment, the opticaltouch display device 100 further includes aback frame 150 for accommodating thecarrier 250 and thereflection unit 240 .

在本实施例的光学触控显示装置100中，由于背光模组200可同时发出可见光束221与不可见光束231，因此显示面板110上及感测空间S旁可不用再设置其他不可见光源与导光单元，如此可降低光学触控显示装置100的整体厚度、光学元件数量及成本，且能够缩短组装工时。In the opticaltouch display device 100 of this embodiment, since thebacklight module 200 can emit thevisible light beam 221 and theinvisible light beam 231 at the same time, there is no need to set other invisible light sources and light sources on thedisplay panel 110 and beside the sensing space S. The light guide unit can reduce the overall thickness of the opticaltouch display device 100 , the number of optical components and the cost, and can shorten the assembly time.

图2A为本发明的另一实施例之光学触控显示装置的爆炸图，而图2B为图2A中之可见光发光元件、不可见光发光元件、承载器及导光板的剖面示意图。请参照图2A及2B，本实施例之触控显示装置100a与图1B之触控显示装置100类似，两者的差异如下所述。在触控显示装置100a中，导光板210’具有二入光面216a及216b，分别位于导光板210’的相对两侧，且可见光发光元件220所发出的可见光束221与不可见光发光元件230所发出的不可见光束231适于分别经由此二入光面216a及216b进入导光板210’中。具体而言，背光模组200’可包括二承载器250，即承载器250a与承载器250b。承载器250a配置于入光面216a旁，且这些可见光发光元件220配置于承载器250a上。承载器250b配置于入光面216b旁，且这些不可见发光元件230配置于承载器250b上。由于本实施例中之可见光发光元件220与不可见光发光元件230是分别配置于不同的承载器250a与250b上，因此相邻两可见光发光元件220的间距可以缩短，且可见光发光元件220的数量可以增加，进而提升背光模组200’所提供的可见面光源之亮度均匀度。同理，相邻两不可见光发光元件230的间距亦可以缩短，且不可见光发光元件230的数量亦可以增加，进而提升背光模组200’所提供之不可见面光源的亮度均匀度。2A is an exploded view of an optical touch display device according to another embodiment of the present invention, and FIG. 2B is a schematic cross-sectional view of the visible light emitting element, the invisible light emitting element, the carrier and the light guide plate in FIG. 2A. Please refer to FIGS. 2A and 2B , thetouch display device 100 a of this embodiment is similar to thetouch display device 100 of FIG. 1B , and the differences between the two are as follows. In thetouch display device 100a, the light guide plate 210' has twolight incident surfaces 216a and 216b, which are respectively located on opposite sides of the light guide plate 210', and thevisible light beam 221 emitted by the visiblelight emitting element 220 is combined with the invisiblelight emitting element 230. The emittedinvisible light beam 231 is adapted to enter the light guide plate 210' through the twolight incident surfaces 216a and 216b respectively. Specifically, the backlight module 200' may include twocarriers 250, namely acarrier 250a and a carrier 250b. Thecarrier 250a is disposed beside thelight incident surface 216a, and the visiblelight emitting elements 220 are disposed on thecarrier 250a. The carrier 250b is disposed beside thelight incident surface 216b, and the invisiblelight emitting elements 230 are disposed on the carrier 250b. Since the visiblelight emitting elements 220 and the invisiblelight emitting elements 230 in this embodiment are respectively disposed ondifferent carriers 250a and 250b, the distance between two adjacent visiblelight emitting elements 220 can be shortened, and the number of visiblelight emitting elements 220 can be reduced. increase, thereby improving the brightness uniformity of the visible surface light source provided by the backlight module 200'. Similarly, the distance between two adjacent invisiblelight emitting elements 230 can also be shortened, and the number of invisiblelight emitting elements 230 can also be increased, thereby improving the brightness uniformity of the invisible surface light source provided by the backlight module 200'.

此外，导光板210’的第一表面212或第二表面上214，或者导光板210’的第一表面212及第二表面214上可设有数个散射微结构218a与数个散射微结构218b(图2B中是以配置于第二表面214的散射微结构218a与218b为例)，其中散射微结构218a所采用的材料特别适于散射可见光束221，且散射微结构218b所采用的材料特别适于散射不可见光束231。如此一来，借由将散射微结构218a与散射微结构218b的分布状态各自设计成不同的分布状态，可使背光模组200’所提供的可见光面光源与不可见光面光源的亮度均匀度提高。然而，在其他实施例中，导光板亦可以采用如图1C之能够同时散射可见光束221与不可见光束231的散射微结构218来取代散射微结构218a与218b，且只要适当的设计散射微结构218的分布状态，亦可使背光模组100’所提供的可见光面光源与不可见光面光源具有一定程度的亮度均匀度。In addition, thefirst surface 212 or thesecond surface 214 of the light guide plate 210', or thefirst surface 212 and thesecond surface 214 of the light guide plate 210' may be provided withseveral scattering microstructures 218a andseveral scattering microstructures 218b ( In FIG. 2B, thescattering microstructures 218a and 218b disposed on thesecond surface 214 are taken as an example), wherein the material used for thescattering microstructure 218a is particularly suitable for scattering thevisible light beam 221, and the material used for thescattering microstructure 218b is particularly suitable. to scatter theinvisible light beam 231 . In this way, by designing the distribution states of thescattering microstructures 218a and the scatteringmicrostructures 218b into different distribution states, the brightness uniformity of the visible light surface light source and the invisible light surface light source provided by the backlight module 200' can be improved. . However, in other embodiments, the light guide plate can also use thescattering microstructure 218 that can simultaneously scatter thevisible light beam 221 and theinvisible light beam 231 as shown in FIG. The distribution state of 218 can also make the visible light surface light source and the invisible light surface light source provided by thebacklight module 100 ′ have a certain degree of brightness uniformity.

图3为本发明的又一实施例的光学触控显示装置的爆炸图。请参照图3，本实施例的光学触控显示装置100b与图2A的光学触控显示装置100a类似，且两者的差异如下所述。在本实施例中，导光板210”的二入光面216a及216b’分别位于导光板210”的相邻两侧，其中可见光发光元件220与承载器250a配置于入光面216a旁，且不可见发光元件230与承载器250b配置于入光面216b’旁。值得注意的是，本发明并不限定导光板所具有的入光面之数量为两个以下，在其他实施例中，导光板所具有的入光面的数量亦可以是三个以上，且每一入光面旁配置有可见光发光元件220或不可见光发光元件230。FIG. 3 is an exploded view of an optical touch display device according to another embodiment of the present invention. Please refer to FIG. 3 , the optical touch display device 100 b of this embodiment is similar to the opticaltouch display device 100 a of FIG. 2A , and the differences between the two are as follows. In this embodiment, the twolight incident surfaces 216a and 216b' of thelight guide plate 210" are respectively located on adjacent two sides of thelight guide plate 210". The visiblelight emitting element 230 and the carrier 250b are disposed beside thelight incident surface 216b'. It is worth noting that the present invention does not limit the number of light incident surfaces of the light guide plate to less than two, and in other embodiments, the number of light incident surfaces of the light guide plate may also be more than three, and each A visiblelight emitting element 220 or an invisiblelight emitting element 230 is arranged beside a light incident surface.

图4A为本发明的再一实施例的光学触控显示装置的爆炸图，且图4B绘示图4A中的发光元件225。请参照图4A与图4B，本实施例的光学触控显示装置100c与图1B的光学触控显示装置100类似，两者的差异如下所述。本实施是以发光元件225来取代图1B中的可见光发光元件220与不可见光发光元件230，其中发光元件225适于同时发出可见光束221与不可见光束231。如此一来，相邻两发光元件225的间距便可以缩短，进而提升背光模组200c所提供的可见光面光源与不可见光面光源的亮度均匀度。FIG. 4A is an exploded view of an optical touch display device according to yet another embodiment of the present invention, and FIG. 4B shows thelight emitting element 225 in FIG. 4A . Please refer to FIG. 4A and FIG. 4B , the opticaltouch display device 100c of this embodiment is similar to the opticaltouch display device 100 of FIG. 1B , and the differences between the two are as follows. In this embodiment, the visiblelight emitting element 220 and the invisiblelight emitting element 230 in FIG. 1B are replaced by thelight emitting element 225 , wherein thelight emitting element 225 is suitable for simultaneously emitting thevisible light beam 221 and theinvisible light beam 231 . In this way, the distance between two adjacent light-emittingelements 225 can be shortened, thereby improving the brightness uniformity of the visible light surface light source and the invisible light surface light source provided by thebacklight module 200c.

具体而言，发光元件225包括一可见光发光二极管晶片222、一不可见光发光二极管晶片232及一封装胶体228。可见光发光二极管晶片222适于发出可见光束221，不可见光发光二极管晶片232(例如红外光发光二极管晶片)适于发出不可见光束231(例如红外光束)，且封装胶体228包覆可见光发光二极管晶片222与不可见光发光二极管晶片222。换言之，可见光发光二极管晶片222与不可见光发光二极管晶片232是位于同一个发光二极管封装体中。Specifically, thelight emitting element 225 includes a visible light emitting diode chip 222 , an invisible light emitting diode chip 232 and anencapsulant 228 . The visible light emitting diode chip 222 is suitable for emitting avisible light beam 221, the invisible light emitting diode chip 232 (such as an infrared light emitting diode chip) is suitable for emitting an invisible light beam 231 (such as an infrared light beam), and theencapsulant 228 covers the visible light emitting diode chip 222 and an invisible light emitting diode chip 222 . In other words, the visible light emitting diode chip 222 and the invisible light emitting diode chip 232 are located in the same light emitting diode package.

图5绘示本发明的另一实施例之发光元件。请参照图5，本实施例的光学触控显示装置与图4A与图4B之光学触控显示装置类似，而两者的差异在于本实施例采用发光元件225’来取代图4A与图4B的发光元件225。具体而言，发光元件225’的发光二极管晶片227适于同时发出可见光束221与不可见光束231，举例而言，发光二极管晶片227所发出的光束的光谱图具有可见光的成分与不可见光的成分。此外，封装胶体228’包覆发光二极管晶片227。FIG. 5 shows a light emitting device according to another embodiment of the present invention. Please refer to FIG. 5, the optical touch display device of this embodiment is similar to the optical touch display device of FIG. 4A and FIG.Light emitting element 225 . Specifically, the light-emittingdiode chip 227 of the light-emitting element 225' is suitable for simultaneously emitting thevisible light beam 221 and theinvisible light beam 231. For example, the spectrum of the light beam emitted by the light-emittingdiode chip 227 has a visible light component and an invisible light component. . In addition, the encapsulant 228' covers theLED chip 227.

值得注意的是，本发明并不限定发光元件必须是发光二极管，在其他实施例中，发光元件亦可以是荧光灯管、白炽灯泡、卤素灯泡或其他适当的发光元件。It should be noted that the present invention does not limit the light-emitting element to be a light-emitting diode, and in other embodiments, the light-emitting element can also be a fluorescent tube, an incandescent light bulb, a halogen light bulb or other suitable light-emitting elements.

图6为本发明的又一实施例的光学触控显示装置的剖面示意图。请参照图6，本实施例之光学触控显示装置100d与图1B的光学触控显示装置100类似，两者的差异如下所述。在本实施例的光学触控显示装置100d中，是以扩散板210d来取代图1B中的导光板210。此外，扩散板210d配置于每一可见光发光元件220与显示面板110之间，且配置于每一不可见光发光元件230与显示面板110之间，其中可见光束221与不可见光束231适于穿透扩散板210d而传递至显示面板110。换言之，光学触控显示装置100d之背光模组200d为直下式背光模组，而图1B的背光模组200为侧面入光式背光模组。在本实施例中，可见光束221与不可见光束231可在承载器250d上排列成二维阵列，且背框150d用以容置承载器250d、可见光发光元件220及不可见光发光元件230。本实施例之光学触控显示装置100d可达到与图1B的光学触控显示装置100类似的优点与功效，在此不再重述。FIG. 6 is a schematic cross-sectional view of an optical touch display device according to another embodiment of the present invention. Please refer to FIG. 6 , the opticaltouch display device 100d of this embodiment is similar to the opticaltouch display device 100 in FIG. 1B , and the differences between the two are as follows. In the opticaltouch display device 100d of this embodiment, thelight guide plate 210 in FIG. 1B is replaced by adiffuser plate 210d. In addition, thediffusion plate 210d is arranged between each visiblelight emitting element 220 and thedisplay panel 110, and is arranged between each invisiblelight emitting element 230 and thedisplay panel 110, wherein thevisible light beam 221 and theinvisible light beam 231 are suitable for passing through Thediffusion plate 210d is transferred to thedisplay panel 110 . In other words, thebacklight module 200d of the opticaltouch display device 100d is a direct-lit backlight module, while thebacklight module 200 in FIG. 1B is a side-lit backlight module. In this embodiment, thevisible light beam 221 and theinvisible light beam 231 can be arranged in a two-dimensional array on thecarrier 250d, and theback frame 150d is used to accommodate thecarrier 250d, the visiblelight emitting device 220 and the invisiblelight emitting device 230. The opticaltouch display device 100d of this embodiment can achieve similar advantages and effects to those of the opticaltouch display device 100 in FIG. 1B , which will not be repeated here.

在其他实施例中，亦可以采用图4B的发光元件225或图5的发光元件225’来取代图6中的可见光发光元件220与不可见光发光元件230，以形成不同类型的光学触控显示装置。In other embodiments, the visiblelight emitting element 220 and the invisiblelight emitting element 230 in FIG. 6 may also be replaced by thelight emitting element 225 in FIG. 4B or the light emitting element 225' in FIG. 5 to form different types of optical touch display devices. .

图7为本发明的再一实施例的光学触控显示装置的正视示意图。请参照图7，本实施例的光学触控显示装置100e与图1A的光学触控显示装置100类似，两者的差异如下所述。在本实施例中，光学触控显示装置100e具有三个光侦测器120，即光侦测器120a、120b、120c。在本实施例中，光侦测器120c配置于前框140的一边上，然而，在其他实施例中，光侦测器120c亦可以是配置于前框140的其他角落或其他边上。由于光学触控显示装置100e具有三个光侦测器120，因此即使二个触控物体50同时进入感测空间S，处理单元130亦能准确判断出这二个触控物体50各自所处的位置，进而使光学触控显示装置100e达到准确的多点触控。FIG. 7 is a schematic front view of an optical touch display device according to yet another embodiment of the present invention. Please refer to FIG. 7 , the opticaltouch display device 100 e of this embodiment is similar to the opticaltouch display device 100 in FIG. 1A , and the differences between the two are as follows. In this embodiment, the opticaltouch display device 100e has threelight detectors 120 , namely,light detectors 120a, 120b, and 120c. In this embodiment, thelight detector 120c is disposed on one side of thefront frame 140 , however, in other embodiments, thelight detector 120c may also be disposed on other corners or other sides of thefront frame 140 . Since the opticaltouch display device 100e has threelight detectors 120, even if twotouch objects 50 enter the sensing space S at the same time, theprocessing unit 130 can accurately determine where the twotouch objects 50 are respectively located. position, so that the opticaltouch display device 100e can achieve accurate multi-touch.

值得注意的是，本发明并不限定光学触控显示装置100e所具有的光侦测器120的数量。当光侦测器120的数量越多时，光学触控显示装置能够达到更多点的触控。此外，当光侦测器120的数量只有一个时，可有效降低光学触控显示装置的成本，且在一实施例中，仅采用一个光侦测器120就足以感测触控物体50在一维空间上的位置变化，如此可应用于仅需简易触控功能的光学触控显示装置，例如提款机的荧幕。It should be noted that the present invention does not limit the number oflight detectors 120 included in the opticaltouch display device 100e. When the number ofphotodetectors 120 is larger, the optical touch display device can achieve more touch points. In addition, when there is only onephotodetector 120, the cost of the optical touch display device can be effectively reduced. Position changes in three-dimensional space, so it can be applied to optical touch display devices that only need simple touch functions, such as the screen of a cash machine.

图8为本发明的另一实施例的光学触控显示装置的剖面示意图。请参照图8，本实施例的光学触控显示装置100f与图1C的光学触控显示装置100类似，两者的差异在于光侦测器120的位置。在本实施例的光学触控显示装置100f中，光侦测器120(例如光侦测器120a与光侦测器120b)配置于显示面板110之面向背光模组200的一侧。在本实施例中，光侦测器120a与120b配置于背光模组200的顶部旁。被触控物体50反射的部分不可见光束231穿透显示面板110而传递至光侦测器120a与120b。由于本实施例的光侦测器120配置于光学触控显示装置100f的内部，而不是配置于前框140上，因此可美化光学触控显示装置100f的外观，且可减少光学触控显示装置100f的厚度。FIG. 8 is a schematic cross-sectional view of an optical touch display device according to another embodiment of the present invention. Please refer to FIG. 8 , the optical touch display device 100 f of this embodiment is similar to the opticaltouch display device 100 in FIG. 1C , the difference between the two lies in the position of thelight detector 120 . In the optical touch display device 100f of this embodiment, the light detector 120 (for example, thelight detector 120a and thelight detector 120b ) is disposed on the side of thedisplay panel 110 facing thebacklight module 200 . In this embodiment, thelight detectors 120 a and 120 b are disposed beside the top of thebacklight module 200 . Part of theinvisible light beam 231 reflected by thetouch object 50 passes through thedisplay panel 110 and is delivered to thelight detectors 120a and 120b. Since thelight detector 120 of this embodiment is disposed inside the optical touch display device 100f instead of on thefront frame 140, the appearance of the optical touch display device 100f can be beautified and the number of optical touch display devices can be reduced. 100f thickness.

综上所述，本发明的实施例可具有下列优点之至少其一。在本发明的实施例的光学触控显示装置中，由于背光模组可同时发出可见光束与不可见光束，因此显示面板上及感测空间旁可不用再设置其他不可见光源与导光单元，如此可降低光学触控显示装置的整体厚度、光学元件数量及成本，且能够缩短组装工时。In summary, the embodiments of the present invention may have at least one of the following advantages. In the optical touch display device of the embodiment of the present invention, since the backlight module can emit visible light beams and invisible light beams at the same time, there is no need to set other invisible light sources and light guide units on the display panel and beside the sensing space. In this way, the overall thickness of the optical touch display device, the number of optical components and the cost can be reduced, and the assembly man-hour can be shortened.

以上所述，仅为本发明之较佳实施例而已，当不能以此限定本发明实施之范围，即大凡依本发明申请专利范围及发明说明内容所作之简单的等效变化与修饰，皆仍属本发明专利涵盖之范围内。另外本发明的任一实施例或申请专利范围不须达成本发明所揭露之全部目的或优点或特点。此外，摘要部分和标题仅是用来辅助专利文件搜寻之用，并非用来限制本发明之权利范围。The above is only a preferred embodiment of the present invention, and should not limit the scope of the present invention, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention are still the same. It is within the scope covered by the patent of the present invention. In addition, any embodiment or scope of claims of the present invention does not need to achieve all the objectives or advantages or features disclosed in the present invention. In addition, the abstract and the title are only used to assist the search of patent documents, and are not used to limit the scope of rights of the present invention.

Claims (22)

Translated fromChinese

1.一种光学触控显示装置，包括：1. An optical touch display device, comprising:一背光模组，适于提供一可见光束与一不可见光束；A backlight module suitable for providing a visible light beam and an invisible light beam;一显示面板，配置于该背光模组的一侧，其中该显示面板前有一感测空间，该显示面板位于该背光模组与感测空间之间，该可见光束与该不可见光束适于穿透该显示面板而传递至该感测空间；以及A display panel, arranged on one side of the backlight module, wherein there is a sensing space in front of the display panel, the display panel is located between the backlight module and the sensing space, the visible light beam and the invisible light beam are suitable for passing through transmitted to the sensing space through the display panel; and至少一光侦测器，配置于该显示面板外，其中当一触控物体进入该感测空间时，该触控物体将部分该不可见光束反射，且该光侦测器配置于该触控物体所反射的该部分不可见光束的传递路径上，以侦测该部分不可见光束，传递至该光侦测器的该部分不可见光束在该光侦测器所侦测到的一画面上产生一亮区，该光学触控显示装置适于根据该亮区在该画面中的位置判断出该触控物体在该感测空间中的位置，At least one light detector is arranged outside the display panel, wherein when a touch object enters the sensing space, the touch object reflects part of the invisible light beam, and the light detector is arranged on the touch On the transmission path of the part of the invisible light beam reflected by the object to detect the part of the invisible light beam, the part of the invisible light beam transmitted to the light detector is on a screen detected by the light detector generating a bright area, the optical touch display device is adapted to determine the position of the touch object in the sensing space according to the position of the bright area in the screen,该光侦测器配置于该显示面板的面向该背光模组的一侧，且被该触控物体反射的该部分不可见光束穿透该显示面板而传递至该光侦测器。The light detector is arranged on the side of the display panel facing the backlight module, and the part of the invisible light beam reflected by the touch object passes through the display panel and is transmitted to the light detector.2.如权利要求1所述的光学触控显示装置，其特征在于：更包括一处理单元，电性连接至该光侦测器，其中该处理单元适于根据该亮区在该画面中的位置判断出该触控物体在该感测空间中的位置。2. The optical touch display device according to claim 1, further comprising a processing unit electrically connected to the light detector, wherein the processing unit is adapted to The position determines the position of the touch object in the sensing space.3.如权利要求1所述的光学触控显示装置，其特征在于：该背光模组包括：3. The optical touch display device according to claim 1, wherein the backlight module comprises:一导光板，具有一朝向该显示面板的第一表面、一背对该显示面板的第二表面及至少一连接该第一表面与该第二表面的入光面；A light guide plate having a first surface facing the display panel, a second surface facing away from the display panel, and at least one light incident surface connecting the first surface and the second surface;至少一可见光发光元件，适于发出该可见光束，其中该可见光束适于经由该入光面进入该导光板中，且适于经由该第一表面传递至该显示面板；以及At least one visible light emitting element is suitable for emitting the visible light beam, wherein the visible light beam is suitable for entering the light guide plate through the light incident surface, and is suitable for being transmitted to the display panel through the first surface; and至少一不可见光发光元件，适于发出该不可见光束，其中该不可见光束适于经由该入光面进入该导光板中，且适于经由该第一表面传递至该显示面板。At least one invisible light emitting element is suitable for emitting the invisible light beam, wherein the invisible light beam is suitable for entering the light guide plate through the light incident surface, and is suitable for being transmitted to the display panel through the first surface.4.如权利要求3所述的光学触控显示装置，其特征在于：该至少一可见光发光元件为数个可见光发光元件，该至少一不可见光发光元件为数个不可见光发光元件，且该些可见光发光元件与该些不可见光发光元件交替排列于该入光面旁。4. The optical touch display device according to claim 3, wherein the at least one visible light emitting element is several visible light emitting elements, the at least one invisible light emitting element is several invisible light emitting elements, and the visible light emitting elements The elements and the invisible light emitting elements are alternately arranged beside the light incident surface.5.如权利要求3所述的光学触控显示装置，其特征在于：该至少一入光面为二入光面，该二入光面分别位于该导光板的相对两侧，且该可见光发光元件所发出的该可见光束与该不可见光发光元件所发出的该不可见光束适于分别经由该二入光面进入该导光板中。5. The optical touch display device according to claim 3, characterized in that: the at least one light incident surface is two light incident surfaces, the two light incident surfaces are respectively located on opposite sides of the light guide plate, and the visible light emits light The visible light beam emitted by the element and the invisible light beam emitted by the invisible light-emitting element are adapted to respectively enter the light guide plate through the two incident surfaces.6.如权利要求5所述的光学触控显示装置，其特征在于：该背光模组更包括：6. The optical touch display device according to claim 5, wherein the backlight module further comprises:一第一承载器，配置于该入光面的其一旁，其中该至少一可见光发光元件为数个可见光发光元件，且该些可见光发光元件配置于该第一承载器上；以及A first carrier arranged on one side of the light incident surface, wherein the at least one visible light emitting element is a plurality of visible light emitting elements, and the visible light emitting elements are arranged on the first carrier; and一第二承载器，配置于该入光面的另一旁，其中该至少一不可见光发光元件为数个不可见光发光元件，且该些不可见发光元件配置于该第二承载器上。A second carrier is arranged on the other side of the light incident surface, wherein the at least one invisible light emitting element is several invisible light emitting elements, and the invisible light emitting elements are arranged on the second carrier.7.如权利要求3所述的光学触控显示装置，其特征在于：该至少一入光面为二入光面，该二入光面分别位于该导光板的相邻两侧，且该可见光发光元件所发出的该可见光束与该不可见光发光元件所发出的该不可见光束适于分别经由该二入光面进入该导光板中。7. The optical touch display device according to claim 3, wherein the at least one light-incident surface is two light-incident surfaces, the two light-incident surfaces are respectively located on adjacent two sides of the light guide plate, and the visible light The visible light beam emitted by the light emitting element and the invisible light beam emitted by the invisible light emitting element are adapted to enter the light guide plate respectively through the two light incident surfaces.8.如权利要求7所述的光学触控显示装置，其特征在于：该背光模组更包括：8. The optical touch display device according to claim 7, wherein the backlight module further comprises:一第一承载器，配置于该入光面的其一旁，其中该至少一可见光发光元件为数个可见光发光元件，且该些可见光发光元件配置于该第一承载器上；以及A first carrier arranged on one side of the light incident surface, wherein the at least one visible light emitting element is a plurality of visible light emitting elements, and the visible light emitting elements are arranged on the first carrier; and一第二承载器，配置于该入光面的另一旁，其中该至少一不可见光发光元件为数个不可见光发光元件，且该些不可见发光元件配置于该第二承载器上。A second carrier is arranged on the other side of the light incident surface, wherein the at least one invisible light emitting element is several invisible light emitting elements, and the invisible light emitting elements are arranged on the second carrier.9.如权利要求3所述的光学触控显示装置，其特征在于：该背光模组更包括一反射单元，配置于该第二表面的一侧，以将来自该第二表面的该可见光束与该不可见光束反射回该导光板。9. The optical touch display device as claimed in claim 3, wherein the backlight module further comprises a reflective unit disposed on one side of the second surface to reflect the visible light beam from the second surface And the invisible light beam is reflected back to the light guide plate.10.如权利要求3所述的光学触控显示装置，其特征在于：该可见光发光元件为一可见光发光二极管，且该不可见光发光元件为一红外光发光二极管。10. The optical touch display device as claimed in claim 3, wherein the visible light emitting element is a visible light emitting diode, and the invisible light emitting element is an infrared light emitting diode.11.如权利要求1所述的光学触控显示装置，其特征在于：该背光模组包括：11. The optical touch display device according to claim 1, wherein the backlight module comprises:一导光板，具有一朝向该显示面板的第一表面、一背对该显示面板的第二表面及至少一连接该第一表面与该第二表面的入光面；以及A light guide plate having a first surface facing the display panel, a second surface facing away from the display panel, and at least one light incident surface connecting the first surface and the second surface; and至少一发光元件，适于发出该可见光束与该不可见光束，其中该可见光束与该不可见光束适于经由该入光面进入该导光板中，且适于经由该第一表面传递至该显示面板。At least one light emitting element is suitable for emitting the visible light beam and the invisible light beam, wherein the visible light beam and the invisible light beam are suitable for entering the light guide plate through the light incident surface, and are suitable for being transmitted to the light guide plate through the first surface display panel.12.如权利要求11所述的光学触控显示装置，其特征在于：该发光元件包括：12. The optical touch display device according to claim 11, wherein the light emitting element comprises:一可见光发光二极管晶片，适于发出该可见光束；a visible light emitting diode chip adapted to emit the visible light beam;一不可见光发光二极管晶片，适于发出该不可见光束；以及an invisible light emitting diode chip adapted to emit the invisible light beam; and一封装胶体，包覆该可见光发光二极管晶片与该不可见光发光二极管晶片。An encapsulation colloid covers the visible light emitting diode chip and the invisible light emitting diode chip.13.如权利要求11所述的光学触控显示装置，其特征在于：该发光元件包括：13. The optical touch display device according to claim 11, wherein the light emitting element comprises:一发光二极管晶片，适于发出该可见光束与该不可见光束；以及a light emitting diode chip adapted to emit the visible light beam and the invisible light beam; and一封装胶体，包覆该发光二极管晶片。An encapsulation colloid covers the LED chip.14.如权利要求11所述的光学触控显示装置，其特征在于：该背光模组更包括一反射单元，配置于该第二表面旁，以将来自该第二表面的该可见光束与该不可见光束反射回该导光板。14. The optical touch display device according to claim 11, characterized in that: the backlight module further comprises a reflective unit disposed next to the second surface to combine the visible beam from the second surface with the The invisible light beam is reflected back to the light guide plate.15.如权利要求1所述的光学触控显示装置，其特征在于：该背光模组包括：15. The optical touch display device according to claim 1, wherein the backlight module comprises:数个可见光发光元件，适于发出该可见光束；a plurality of visible light emitting elements adapted to emit the visible light beam;数个不可见光发光元件，适于发出该不可见光束；以及a plurality of invisible light emitting elements adapted to emit the invisible light beam; and一扩散板，配置于每一该可见光发光元件与该显示面板之间，且配置于每一该不可见光发光元件与该显示面板之间，其中该可见光束与该不可见光束适于穿透该扩散板而传递至该显示面板。A diffusion plate is disposed between each visible light emitting element and the display panel, and between each invisible light emitting element and the display panel, wherein the visible light beam and the invisible light beam are suitable for passing through the The diffusion plate is transferred to the display panel.16.如权利要求1所述的光学触控显示装置，其特征在于：该背光模组包括：16. The optical touch display device according to claim 1, wherein the backlight module comprises:数个发光元件，适于发出该可见光束与该不可见光束；以及a plurality of light emitting elements adapted to emit the visible light beam and the invisible light beam; and一扩散板，配置于每一该发光元件与该显示面板之间，其中该可见光束与该不可见光束适于穿透该扩散板而传递至该显示面板。A diffusion plate is disposed between each light-emitting element and the display panel, wherein the visible light beam and the invisible light beam are adapted to pass through the diffusion plate and be transmitted to the display panel.17.一种光学触控显示装置，包括：17. An optical touch display device, comprising:一背光模组，适于提供一可见光束与一不可见光束；A backlight module suitable for providing a visible light beam and an invisible light beam;一显示面板，配置于该背光模组的一侧，其中该显示面板前有一感测空间，该显示面板位于该背光模组与感测空间之间，该可见光束与该不可见光束适于穿透该显示面板而传递至该感测空间；以及A display panel, arranged on one side of the backlight module, wherein there is a sensing space in front of the display panel, the display panel is located between the backlight module and the sensing space, the visible light beam and the invisible light beam are suitable for passing through transmitted to the sensing space through the display panel; and至少一光侦测器，配置于该显示面板外，其中当一触控物体进入该感测空间时，该触控物体将部分该不可见光束反射，且该光侦测器配置于该触控物体所反射的该部分不可见光束的传递路径上，以侦测该部分不可见光束，传递至该光侦测器的该部分不可见光束在该光侦测器所侦测到的一画面上产生一亮区，该光学触控显示装置适于根据该亮区在该画面中的位置判断出该触控物体在该感测空间中的位置，At least one light detector is arranged outside the display panel, wherein when a touch object enters the sensing space, the touch object reflects part of the invisible light beam, and the light detector is arranged on the touch On the transmission path of the part of the invisible light beam reflected by the object to detect the part of the invisible light beam, the part of the invisible light beam transmitted to the light detector is on a screen detected by the light detector generating a bright area, the optical touch display device is adapted to determine the position of the touch object in the sensing space according to the position of the bright area in the screen,该光侦测器配置于该感测空间旁，且配置于该显示面板的背对该背光模组的一侧，The light detector is arranged beside the sensing space, and is arranged on the side of the display panel facing away from the backlight module,其中，光学触控显示装置还包括一前框，覆盖该显示面板的边缘，其中该光侦测器配置于该前框上，且部分该前框位于该光侦测器与该显示面板的边缘之间。Wherein, the optical touch display device further includes a front frame covering the edge of the display panel, wherein the light detector is disposed on the front frame, and part of the front frame is located at the edge of the light detector and the display panel between.18.如权利要求17所述的光学触控显示装置，其特征在于：该背光模组包括：18. The optical touch display device according to claim 17, wherein the backlight module comprises:一导光板，具有一朝向该显示面板的第一表面、一背对该显示面板的第二表面及至少一连接该第一表面与该第二表面的入光面；A light guide plate having a first surface facing the display panel, a second surface facing away from the display panel, and at least one light incident surface connecting the first surface and the second surface;至少一可见光发光元件，适于发出该可见光束，其中该可见光束适于经由该入光面进入该导光板中，且适于经由该第一表面传递至该显示面板；以及At least one visible light emitting element is suitable for emitting the visible light beam, wherein the visible light beam is suitable for entering the light guide plate through the light incident surface, and is suitable for being transmitted to the display panel through the first surface; and至少一不可见光发光元件，适于发出该不可见光束，其中该不可见光束适于经由该入光面进入该导光板中，且适于经由该第一表面传递至该显示面板。At least one invisible light emitting element is suitable for emitting the invisible light beam, wherein the invisible light beam is suitable for entering the light guide plate through the light incident surface, and is suitable for being transmitted to the display panel through the first surface.19.如权利要求18所述的光学触控显示装置，其特征在于：该至少一可见光发光元件为数个可见光发光元件，该至少一不可见光发光元件为数个不可见光发光元件，且该些可见光发光元件与该些不可见光发光元件交替排列于该入光面旁。19. The optical touch display device according to claim 18, characterized in that: the at least one visible light emitting element is several visible light emitting elements, the at least one invisible light emitting element is several invisible light emitting elements, and these visible light emitting elements The elements and the invisible light emitting elements are alternately arranged beside the light incident surface.20.如权利要求18所述的光学触控显示装置，其特征在于：该至少一入光面为二入光面，该二入光面分别位于该导光板的相对两侧，且该可见光发光元件所发出的该可见光束与该不可见光发光元件所发出的该不可见光束适于分别经由该二入光面进入该导光板中。20. The optical touch display device according to claim 18, wherein the at least one light-incident surface is two light-incident surfaces, the two light-incident surfaces are respectively located on opposite sides of the light guide plate, and the visible light emits light The visible light beam emitted by the element and the invisible light beam emitted by the invisible light emitting element are adapted to enter the light guide plate respectively through the two light incident surfaces.21.如权利要求18所述的光学触控显示装置，其特征在于：该至少一入光面为二入光面，该二入光面分别位于该导光板的相邻两侧，且该可见光发光元件所发出的该可见光束与该不可见光发光元件所发出的该不可见光束适于分别经由该二入光面进入该导光板中。21. The optical touch display device according to claim 18, characterized in that: the at least one light incident surface is two light incident surfaces, the two light incident surfaces are respectively located on adjacent two sides of the light guide plate, and the visible light The visible light beam emitted by the light-emitting element and the invisible light beam emitted by the invisible light-emitting element are adapted to enter the light guide plate through the two incident surfaces respectively.22.如权利要求17所述的光学触控显示装置，其特征在于：该背光模组包括：22. The optical touch display device according to claim 17, wherein the backlight module comprises:一导光板，具有一朝向该显示面板的第一表面、一背对该显示面板的第二表面及至少一连接该第一表面与该第二表面的入光面；以及A light guide plate having a first surface facing the display panel, a second surface facing away from the display panel, and at least one light incident surface connecting the first surface and the second surface; and至少一发光元件，适于发出该可见光束与该不可见光束，其中该可见光束与该不可见光束适于经由该入光面进入该导光板中，且适于经由该第一表面传递至该显示面板。At least one light emitting element is suitable for emitting the visible light beam and the invisible light beam, wherein the visible light beam and the invisible light beam are suitable for entering the light guide plate through the light incident surface, and are suitable for being transmitted to the light guide plate through the first surface display panel.

Images