CN103425352B - Vehicular optical touch device - Google Patents

Abstract

A kind of Vehicular optical touch device, including a screen, a layers of elastomeric film, detection light source and an image detector.Layers of elastomeric film is configured on screen, and includes a first surface and a second surface.First surface is back to screen.Second surface is towards screen, and includes multiple inclined plane.These inclined planes tilt relative to first surface.At least part of ambient light entering layers of elastomeric film via first surface is totally reflected by these inclined planes, so that at least partly ambient light leaves layers of elastomeric film via first surface.Detection light source sends a detection light towards layers of elastomeric film.Press first surface when an object and when making second surface deform, detect light and sequentially penetrate layers of elastomeric film, be reflected by the object, again penetrate layers of elastomeric film and propagate to image detector.

Description

Vehicular optical touch device

Technical field

The present invention relates to a kind of contactor control device, and particularly to a kind of Vehicular optical touch device.

Background technology

In recent years, quick along with every application such as information technology, wireless mobile communication and information household electrical appliances Development, more lightly changes to reach more convenient, volume, and more humane purpose, many information The input equipment of product is changed into contact panel (touch panel) by traditional keyboard or mouse etc., This contact panel and display are combined into touch panel display (touch panel display).Now General contact panel design substantially can divide into resistance-type, condenser type, optical profile type, sound wave type and Electromagnetic type etc..

Known optical touch control panel is to utilize infrared light supply to send infrared light to the table of contact panel Face, and when the finger of user contacts the surface of contact panel, then can be by infrared light reflection to touch-control The image detector of panel itself.Just hands is can interpolate that according to the infrared light detected by image detector Refer to the position of touching.But, propagate in panel when the infrared light transmission touch panel in ambient light During the image detector in portion, then image detector can be interfered.Especially, when the very strong (example of ambient light If ambient light is daylight) time, the infrared light in ambient light even can make image detector produce overexposure Phenomenon, the most almost cannot judge finger by the image detected by image detector Touch position.

U.S. Patent No. 8144271 discloses a kind of multi-point touch sensing system, comprise light guide, light source, Deformation layer and CIS.

Summary of the invention

The present invention provides a kind of Vehicular optical touch device, and this optical touch control apparatus can reduce ambient light Interference and provide accurately touch position judge.

Other objects of the present invention and advantage can obtain into one from the technical characteristic that disclosed herein The understanding of step.

For reaching one of above-mentioned or partly or entirely purpose or other purposes, one embodiment of the invention carries Go out a kind of Vehicular optical touch device, including a screen, a layers of elastomeric film, a detection light source and Image detector.Layers of elastomeric film is configured on screen, and includes a first surface and a second surface. First surface is back to screen.Second surface is towards screen, and includes multiple inclined plane.These inclined planes Tilt relative to first surface.The adjacent inclined plane of any two is on the direction being parallel to first surface There is mean breadth and the pitch of respectively W Yu P, and 0.5 W/P 1.These inclined planes will be through At least part of ambient light total reflection of layers of elastomeric film is entered by first surface, so that at least partly ambient light Layers of elastomeric film is left via first surface.Detection light source sends a detection light towards layers of elastomeric film, and the Two surface configuration are between first surface and image detector.Press first surface when an object and make the During two areal deformations, detection light sequentially penetrates layers of elastomeric film, by touch object reflection, again penetrating projectile Property film layer and propagate to image detector.

The optical touch-control device of embodiments of the invention can reach at least one of following advantages.At this In the Vehicular optical touch device of inventive embodiment, owing to layers of elastomeric film has inclined plane with near Small part is totally reflected from the ambient light that first surface is incident, and makes ambient light leave elasticity from first surface Film layer, is therefore effectively reduced the light quantity of the ambient light propagating to image detector.Consequently, it is possible to shadow As detector just can not be disturbed by ambient light, and make Vehicular optical touch device for touching position The accuracy of the judgement put promotes.

For the features described above of the present invention and advantage can be become apparent, special embodiment below, and join Close institute's accompanying drawings to be described in detail below.

Accompanying drawing explanation

Figure 1A is the generalized section of the Vehicular optical touch device of one embodiment of the invention.

Figure 1B is the layers of elastomeric film in Figure 1A and the screen state when not having object to press.

Fig. 1 C is the partial enlarged drawing of the layers of elastomeric film in Figure 1A and screen.

Fig. 1 D is the schematic top plan view of the Vehicular optical touch device of Figure 1A.

Fig. 1 E illustrates a kind of change kenel of the layers of elastomeric film in Figure 1A.

Fig. 1 F illustrates a kind of change kenel of the Vehicular optical touch device of Figure 1A.

Fig. 2 is the generalized section of the Vehicular optical touch device of another embodiment of the present invention.

Fig. 3 is the screen generalized section with layers of elastomeric film of further embodiment of this invention.

Fig. 4 is the screen generalized section with layers of elastomeric film of yet another embodiment of the invention.

Fig. 5 is the screen generalized section with layers of elastomeric film of another embodiment of the present invention.

Fig. 6 is the screen generalized section with layers of elastomeric film of further embodiment of this invention.

Fig. 7 is showing of being applied in automobile cabin of the automobile-used optical touch control system of yet another embodiment of the invention It is intended to.

[main element symbol description]

50: object

60: ambient light

10,100,100a, 100b: optical touch-control device

110,110e, 110f: screen

120: detection light source

122: detection light

130: image detector

140: image projecting unit

142: image strip

150: light element

152: the three surfaces

154: the four surfaces

156: incidence surface

200,200 ', 200c, 200d, 200e, 200f: layers of elastomeric film

210: first surface

220,220 ', 220c: second surface

222,2221～2225,222c, 222d: inclined plane

224,226: joint face

230,230a: composition surface

D1: first direction

D2: second direction

A: pressed position

P, P ': pitch

W: mean breadth

α, α 1, α 2, α 3, α 4, α 5, β: angle

Detailed description of the invention

For the present invention aforementioned and other technology contents, feature and effect, coordinate with reference to figure following In the detailed description of one preferred embodiment of formula, can clearly present.Following example are previously mentioned Direction term, such as: upper and lower, left and right, front or rear etc., be only the direction with reference to accompanying drawing. Therefore, the direction term of use is used to illustrate not for limiting the present invention.

Figure 1A is the generalized section of the Vehicular optical touch device of one embodiment of the invention, figure 1B is the layers of elastomeric film in Figure 1A and the screen state when not pressing, and Fig. 1 C is in Figure 1A Layers of elastomeric film and the partial enlarged drawing of screen, and the Vehicular optical touch device that Fig. 1 D is Figure 1A Schematic top plan view.Refer to Figure 1A to Fig. 1 D, the Vehicular optical touch device 100 of the present embodiment Including screen 110, layers of elastomeric film 200, detection light source 120 and an image detector 130. Layers of elastomeric film 200 is configured on screen 110, and includes a relative first surface 210 and one second Surface 220.First surface 210 is back to screen 110, and second surface 220 is towards screen.In this reality Executing in example, screen 110 is a diffusion screen.Additionally, Vehicular optical touch device also includes a shadow As projecting cell 140, image projecting unit 140 sends an image strip 142, and screen 110 configures On the propagation path of image strip 142.The image strip 142 that image projecting unit 140 is sent Projecting and image on screen 110, the diffusion function of diffusion screen then can allow image projecting unit 140 The real image formed on diffusion screen is prone to allow user watch from all angles.

Additionally, second surface 220 includes multiple inclined plane 222.These inclined planes 222 are relative to first Surface 210 tilts.In the present embodiment, a first surface 210 for example, plane.Wantonly two adjacent Inclined plane 222 has mean breadth W and pitch P on the direction of parallel first surface 210, and 0.5 W/P 1, pitch P is defined as the centre distance of two adjacent inclined planes, and Figure 1B is with As a example by W/P is equal to 1.But, in another embodiment, as referring to figure 1e, W/P ' can also be equal to 0.5, wherein P ' is that the inclined plane 222 of second surface 220 ' of flexible member 200 ' is parallel to first surface Pitch on the direction of 210.Owing to, in second surface 220 ', adjacent two inclined planes 222 are by one Joint face 226 is connected with joint face 224, and the width of joint face 226 contribute to the joint of a part Away from the width of P ', so pitch P, the ratio of ' relatively big and mean breadth W and pitch P ' is less.At other In embodiment, also can make the width of joint face 226 less than shown in Fig. 1 E, and allow W/P between 0.5 with Between 1.In the present embodiment, these inclined planes 222 are along being parallel to the one first of first surface 210 Direction D1 arranges, and each inclined plane 222 is along the second direction being parallel to first surface 210 D2 extends (as shown in figure ip).In the present embodiment, first direction D1 is perpendicular to second direction D2. Additionally, above-mentioned mean breadth W and pitch P and P ' length the most in the first direction dl.

Detection light source 120 sends a detection light 122 towards layers of elastomeric film 200, and second surface 220 is joined It is placed between first surface 210 and image detector 130.In the present embodiment, screen 110 configures Between layers of elastomeric film 200 and detection light source 120, and detect the detection light 122 that light source 120 is sent Layers of elastomeric film 200 is propagated to after by screen 110.In the present embodiment, detection light 122 is can not See light, for example, infrared light.But, in other embodiments, detection light 122 can also be other The black light of wave band, or can also be visible ray.

The material of layers of elastomeric film 200 is elastic material, for example, silicones (silicone), other resins Or other suitable elastic materials.When an object 50(such as finger, pointer or other suitable things Body) pressing first surface 210 and when making second surface 220 deform, detect light 122 sequentially penetrating projectile Property film layer 200, reflected by object 50, again penetrate layers of elastomeric film 200 and propagate to image detector 130.Specifically, when layers of elastomeric film 200 is pressed by object 50, first surface 210 is in being pressed At pressure, A can be recessed, and then makes the inclined plane 222 of pressed position A deform and be close to screen 110.Phase Can be reflected by the detection light 122 of part compared with the inclined plane 222 before being pressed, be now pressed inclines Inclined-plane 222 is due to deformation and is close to screen 110 without reflection detection light 122.Consequently, it is possible to it is more Detection light 122 just can penetrate pressed position A of layers of elastomeric film 200 and propagate to object 50.Connect , detection light 122 is reflected back layers of elastomeric film 200 by object 50.Similarly, before compared to being pressed Inclined plane 222, the inclined plane 222 being now pressed, deform and being close to screen 110 then will not reflect Detection light 122, and detection light 122 can be made to propagate to image detector 130.Consequently, it is possible to automobile-used light Formula contactor control device 100 just can according to detected by image detector 130 from pressed position A Detection light 122 produced by the position of image and determine the object 50 position relative to screen, to reach Become the judgement of touch position.Image detector 130 for example, charge coupled cell (charge coupled Device, CCD), CMOS sensing element (complementary metal Oxide semiconductor sensor, CMOS sensor) or other suitable CISs.

In the present embodiment, second surface 220 also includes multiple joint face 224, each joint face 224 Connect two adjacent inclined planes 222.Additionally, in the present embodiment, joint face 224 is perpendicular to first Surface 210.These inclined planes 222 will enter at least portion of layers of elastomeric film 200 via first surface 210 Time-sharing environment light 60 is totally reflected, so that at least partly ambient light 60 leaves elasticity via first surface 210 Film layer 200.For example, as shown in Figure 1A, enter via first surface 210 when ambient light 60 Layers of elastomeric film 200 when propagating to inclined plane 222, if the incidence of the incident inclined plane 222 of ambient light 60 Angle is more than critical angle (critical angle), then ambient light 60 is totally reflected by inclined plane 222, e.g. Ambient light 60 is all-trans and is incident upon first surface 210, and make ambient light 60 leave via first surface 210 Layers of elastomeric film 200.Consequently, it is possible to ambient light 60 just will not propagate to image detector 130 and disturb The accuracy of image detector 130 detection detection light 122.In the present embodiment, in ambient light 60 Infrared light just will not propagate to image detector 130 and interference images detector 130.Or, such as figure Shown in 1C, after another part ambient light 60 is inclined by face 222 total reflection, also may be reflected into even Junction 224.Then, ambient light 60 sequentially penetrates joint face 224 and by another adjacent inclined plane 222 Refract to first surface 210, and leave layers of elastomeric film 200 via first surface 210.Consequently, it is possible to Also can reduce ambient light 60 and propagate to the chance of image detector 130.Furthermore, ambient light is being inclined by After the total reflection of face 222, also may penetrate multiple joint face 224 and adjacent multiple inclined planes 222, and After being reflected by these joint faces 224 and inclined plane 222, return first surface 210 and via first Layers of elastomeric film 200 is left on surface 210, the most also can reduce ambient light 60 and propagate to image detector 130 Chance.

In the Vehicular optical touch device 100 of the present embodiment, incline owing to layers of elastomeric film 200 has Inclined-plane 222 can will at least partly be totally reflected from the ambient light 60 of first surface 210 incidence, and make environment Light 60 leaves layers of elastomeric film 200 from first surface 210, is therefore effectively reduced ambient light 60 and propagates to The light quantity of image detector 130.Consequently, it is possible to image detector 130 just can be the most by environment The interference of light 60, and make Vehicular optical touch device 100 for the accuracy of the judgement of touch position Promote.Pass owing to the Vehicular optical touch device 100 of the present embodiment can effectively reduce ambient light 60 Cast to the light quantity of image detector 130, even if therefore in strong ambient light 60(such as daylight) under, optics Formula contactor control device 100 remains able to normal operation, and the touch position of the object 50 that correctly judges. When the layers of elastomeric film 200 in the optical touch-control device 100 of the present embodiment meets 0.5 W/P 1, Just can be effectively reduced ambient light 60 and propagate to the light quantity of image detector 130, and make optical profile type touch Control device 100 is not affected by ambient light 60.

During it addition, image strip 142 propagates to inclined plane 222 in the scattering via screen 110, Due to be from thin medium (such as air) enter close medium (i.e. the material of layers of elastomeric film 200, such as Silicones), thus without being totally reflected.So, image strip 142 can penetrate layers of elastomeric film 200 And allow user can be observed.Therefore, even if arranging layers of elastomeric film 200 in screen 110 front, use Person remains to the display picture normally watching on screen 110.

As shown in Figure 1 C, in the present embodiment, the angle α of inclined plane 222 and screen 110 is for example, 45 degree, and inclined plane 222 and the angle β for example, 45 degree of joint face 224, but the present invention is not with this It is limited.Angle α and the design load of angle β can be made according to the incident direction of ambient light 60 time actually used Adjust.

In the present embodiment, second surface 220 also includes being configured at the both sides of these inclined planes 222 Composition surface 230, and layers of elastomeric film 200 can be engaged with screen 110 by composition surface 230, such as, pass through Adhesive agent engages composition surface 230 and screen 110.

As shown in figure ip, in the present embodiment, the top view of Vehicular optical touch device 100 is square Shape, that is screen is general rectangle screen.But, in another embodiment, such as Fig. 1 F, automobile-used The top view of optical touch-control device 100a can also be rounded, and Vehicular optical touch device 100a Composition surface 230a then can be around inclined plane 222.Or, bowing of Vehicular optical touch device 100 View also can be in other geometries or any irregularly shaped.

Fig. 2 is the generalized section of the Vehicular optical touch device of another embodiment of the present invention.Please With reference to Fig. 2, Vehicular optical touch device 100b of the present embodiment is tactile with the automobile-used optical profile type of Figure 1A Control device 100 is similar to, and both difference is as described below.The automobile-used optical touch control dress of the present embodiment Put 100 light elements 150 also including being configured between screen 110 and layers of elastomeric film 200.Guide-lighting Unit 150 has one towards the 3rd surface 152, of layers of elastomeric film 200 towards the 4th of screen 110 Surface 154 and one connects the 3rd surface 152 and the incidence surface 156 on the 4th surface 154.At the present embodiment In, light element 150 is configured on screen 110, and layers of elastomeric film 200 is configured at the 3rd surface 152 On.For example, layers of elastomeric film 200 can be engaged on the 3rd surface 152 by composition surface 230. It is other that detection light source 120 is configured at incidence surface 156, and detection light 122 enters via incidence surface 156 and leads In light unit 150.The tip formed due to inclined plane 222 and joint face 224 and the 3rd surface 152 Contact area limited, therefore the overwhelming majority layers of elastomeric film 200 and light element 150 between exist There is gap (e.g. the air gap).So, when detection light 122 enters leaded light via incidence surface 156 After unit 150, most detection light 122 can be constantly by the 3rd surface 152 and the 4th surface 154 It is totally reflected and is confined in light element 150.

When object 50 presses first surface 210, the inclined plane 222 of pressed position A is towards the 3rd table Face 152 deforms and is close to the 3rd surface 152, so that the detection light 122 in light element 150 is from inclining Inclined-plane 222 is close to the position (i.e. pressed position A) on the 3rd surface 152 and is disengaged, and via elastica Layer 200 propagates to object 50.Specifically, when inclined plane 222 is close to three surfaces 152, incline The air gap between inclined-plane 222 and the 3rd surface 152 does not exists, and such 3rd surface 152 is right The total reflection effect of detection light 122 will be destroyed, and therefore detection light 122 is just worn in pressed position A Saturating 3rd surface 152 and layers of elastomeric film 200 and propagate to object 50.Then, object 50 will detect light 122 reflections, and make detection light 122 sequentially and saturating layers of elastomeric film 200, light element 150 and screen 110 And propagate to image detector 130.It is pressed consequently, it is possible to image detector 130 is just able to detect that The detection light 122 that place A is transmitted, judges the position of pressed position A for optical touch-control device 100b Put.

The inclined plane 222 of the present embodiment also has at least part of ambient light 60 of total reflection to reduce ambient light and pass Casting to effect of image detector 130, the reason producing this effect can refer to above-described embodiment with details, No longer repeat at this.

Fig. 3 is the screen generalized section with layers of elastomeric film of another embodiment of the present invention.Refer to Fig. 3, the optical touch control apparatus of the present embodiment is similar with the optical touch control apparatus 100 of Figure 1A, and both Difference as described below.In the optical touch control apparatus of the present embodiment, these of layers of elastomeric film 200c incline Inclined-plane 222c includes the inclined plane organizing Different Slope, such as inclined plane 2221 and inclined plane 2222 more. In the present embodiment, inclined plane 222c of described many group Different Slope lays respectively at second surface 220c Zones of different.For example, as it is shown on figure 3, the less inclined plane 2221 of slope is positioned at the second table Left one side of something of face 220c, and the bigger inclined plane 2222 of slope is positioned at right one side of something of second surface 220c. From the point of view of another viewpoint, inclined plane 2221 is less than inclined plane 2222 with glimmering with the angle α 1 of screen 110 The angle α 2 of curtain 110, wherein angle α 1 for example, 30 degree, and angle α 2 for example, 45 degree, but The present invention is not limited.Owing to layers of elastomeric film 200c of the present embodiment has, to be positioned at zones of different many Plant inclined plane 222c of Different Slope, be therefore irradiated in the difference of layers of elastomeric film 200c when ambient light 60 When region has different angle of incidence, the multiple slopes of these inclined planes 222c just can be for having difference The ambient light 60 of angle of incidence and be respectively designed to be suitable for the value of these different incidence angles.Consequently, it is possible to Layers of elastomeric film 220c can be enable to be totally reflected greater proportion of ambient light 60.Fig. 2 is with two kinds of differences As a example by slope, but in other embodiments, the Different Slope of more than three kinds can also be used.

Fig. 4 is the screen generalized section with layers of elastomeric film of one more embodiment of the present invention.Refer to Fig. 4, layers of elastomeric film 200d of the present embodiment is similar with layers of elastomeric film 200c of Fig. 3, and both differences Different as described below.In the optical touch-control device of the present embodiment, many groups of layers of elastomeric film 200d are different Three groups of inclined planes 222d such as inclined plane 222d(of slope such as inclined plane 2223,2224 and 2225) Arrangement interlaced with each other.For example, these inclined planes 2223,2224 and 2225 can be parallel to The most repeatedly occur on the direction on one surface 210.When inclined plane 222d of many group Different Slope is interlocked During arrangement, generally speaking these inclined planes 222d are applicable to the ambient light from the incidence of various different directions 60, and improving optical formula contactor control device is for the suitability of the kind of ambient light.Due to inclined plane 2223, 2224 is different from the slope of 2225, it is therefore possible to make the width of inclined plane 2223,2224 and 2225 Spend different from each other.Now, wantonly two neighbors' in inclined plane 2223,2224 and 2225 is average wide Degree and the ratio of pitch the most still fall in the range of more than or equal to 0.5 and less than or equal to 1.For example, For adjacent inclined plane 2223 and 2224, mean breadth is that the width of inclined plane 2223 adds The width of inclined plane 2224 is divided by 2, and the pitch of inclined plane 2223 and 2224 is then inclined plane 2223 Distance on the direction being parallel to first surface 210 of the center of center and inclined plane 2224.At this In embodiment, inclined plane 2223 and the angle α 3 for example, 60 degree of screen 110, inclined plane 2224 With the angle α 4 for example, 40 degree of screen 110, and the angle α 5 of inclined plane 2225 and screen 110 For example, 20 degree, but the present invention is not limited.Additionally, in other embodiments, inclined plane 2223, 2224 with 2225 put in order and can also be different from that other of Fig. 4 are any to put in order.Or, Inclined plane 2223,2224 and 2225 can also use irregular random (random) arrangement mode.

Fig. 5 is the screen generalized section with layers of elastomeric film of another embodiment of the present invention.Refer to The screen 110 of Fig. 5, the screen 110e of the present embodiment and layers of elastomeric film 200e and Fig. 3 and layers of elastomeric film 200c is similar to, and both difference is as described below.In the fig. 3 embodiment, screen 110 is flat board Shape screen, and layers of elastomeric film 200c is flat plate membrane layer.But, in the present embodiment, screen 110e For bending screen, and layers of elastomeric film 200e is bending film layer.Now, image projecting unit 140 (as shown in Figure 1A) the bending image of the curvature along screen 110e can be projected on screen 110e. Additionally, due to layers of elastomeric film 200e is bending, even the most parallel ambient light is incident to elasticity Also can produce different angle of incidence during film layer 200e, and the present embodiment uses the inclination of multiple Different Slope Face 2221 and 2222, then can be respectively directed to the ambient light of different angle of incidence and produce good total reflection Effect.

Fig. 6 is the screen generalized section with layers of elastomeric film of another embodiment of the present invention.Refer to Fig. 6, the screen 110f of the present embodiment and layers of elastomeric film 200f and the screen 110 of Fig. 1 and layers of elastomeric film 200 are similar to, and both difference is as described below.In the present embodiment, screen 110f is that bending is glimmering Curtain, and layers of elastomeric film 200f is bending film layer.In Figure 5, layers of elastomeric film 200e is in inclined plane Bend in the orientation of 222c, and in figure 6, layers of elastomeric film 200f is then in inclined plane 222 Bend on bearing of trend.But, in other embodiments, layers of elastomeric film can also be different from inclination The bearing of trend in face and not side in the orientation of inclined plane are bent upwards.

Additionally, the layers of elastomeric film of layers of elastomeric film 200c of the layers of elastomeric film 200 ' of Fig. 1 E, Fig. 3, Fig. 4 Layers of elastomeric film 200f of layers of elastomeric film 200e of 200d, Fig. 5 and screen 110e and Fig. 6 and screen 110f It is equally applicable in the embodiment with light element 150 of Fig. 2.When layers of elastomeric film 200e and screen When 110e is applied in the embodiment with light element 150 of Fig. 2, or when layers of elastomeric film 200f with When screen 110f is applied in the embodiment with light element 150 of Fig. 2, light element 150 is also Can use along with the light guide plate of screen 110e or 110f bending.Fig. 7 is above-mentioned various forms of automobile-used light Learn contactor control device and be applied to schematic diagram in automobile cabin.

In sum, the Vehicular optical touch device of embodiments of the invention can realize following advantages At least one.In the Vehicular optical touch device of embodiments of the invention, owing to layers of elastomeric film has There is inclined plane part to be totally reflected from the ambient light that first surface is incident, and make ambient light from the first table Layers of elastomeric film is left in face, is therefore effectively reduced ambient light and propagates to the light quantity of image detector.So One, image detector just can not be disturbed by ambient light, and makes optical touch-control device for touching The accuracy of the judgement touching position promotes.

But the foregoing is only presently preferred embodiments of the present invention, real when the present invention can not be limited with this The scope executed, the simple equivalence change i.e. made according to the claims in the present invention and invention description content With modification, the most still remain within the scope of the patent.The additionally any embodiment of the present invention or power Profit requires to be not necessary to reach the whole purposes that disclosed herein or advantage or feature.Additionally, summary part It is intended merely to assist patent document search to be used with title, is not used for limiting the interest field of the present invention. It addition, the terms such as the first surface mentioned in description, second surface, only in order to represent the name of element Claim, be not used for limiting the upper limit in number of elements or lower limit.

Claims (16)

1. a Vehicular optical touch device, including:

One screen；

One layers of elastomeric film, is configured on described screen, and described layers of elastomeric film includes:

One first surface, back to described screen；And

One second surface, towards described screen, described second surface includes multiple inclined plane, its In these inclined planes tilt relative to described first surface, the inclined plane that any two is adjacent is being parallel to Having a mean breadth and a pitch on the direction of described first surface, mean breadth is defined as W, joint Away from being defined as P, and 0.5 W/P 1, these inclined planes will be in order to will enter institute via described first surface State the component environment light total reflection of layers of elastomeric film, so that described component environment light is via described first surface Leave described layers of elastomeric film；

One detection light source, sends a detection light towards described layers of elastomeric film；And

One image detector, wherein said second surface is configured at described first surface and examines with described image Survey between device, when an object presses described first surface and makes described second surface deform, described inspection Light-metering sequentially penetrates described layers of elastomeric film, by the reflection of this object, again penetrate described layers of elastomeric film and biography Cast to described image detector.

2. Vehicular optical touch device as claimed in claim 1, it is characterised in that described screen It is configured between described layers of elastomeric film and described detection light source.

3. Vehicular optical touch device as claimed in claim 1, it is characterised in that also include Light element, described light element is configured between described screen and described layers of elastomeric film, described leaded light Unit have one towards described layers of elastomeric film the 3rd surface, one towards described screen the 4th surface and One incidence surface connecting described 3rd surface and described 4th surface, wherein said detection light source is configured at By described incidence surface, described detection light enters in described light element via described incidence surface, and works as institute When stating the object described first surface of pressing, the described inclined plane of pressed position becomes towards described 3rd surface Shape and be close to described 3rd surface, so that the described detection light in described light element is from described inclination Face is close to the position on described 3rd surface and is disengaged, and propagates to described object via described layers of elastomeric film.

4. Vehicular optical touch device as claimed in claim 1, it is characterised in that these tilt Face includes the inclined plane organizing Different Slope more.

5. Vehicular optical touch device as claimed in claim 4, it is characterised in that described many groups The inclined plane of Different Slope lays respectively at the zones of different of described second surface.

6. Vehicular optical touch device as claimed in claim 4, it is characterised in that described many groups The inclined plane arrangement interlaced with each other of Different Slope.

7. Vehicular optical touch device as claimed in claim 1, it is characterised in that described first Surface is a plane.

8. Vehicular optical touch device as claimed in claim 1, it is characterised in that described screen It it is a diffusion screen.

9. Vehicular optical touch device as claimed in claim 8, it is characterised in that also include Image projecting unit, in order to send an image strip, wherein said diffusion screen is configured at described image On the propagation path of light beam.

10. Vehicular optical touch device as claimed in claim 1, it is characterised in that described screen It is a bending screen, and described layers of elastomeric film is a bending film layer.

11. Vehicular optical touch device as claimed in claim 1, it is characterised in that described glimmering Curtain is a tabular screen, and described layers of elastomeric film is a flat plate membrane layer.

12. Vehicular optical touch device as claimed in claim 1, it is characterised in that described Two surfaces also include multiple joint face, and each joint face connects two adjacent inclined planes.

13. Vehicular optical touch device as claimed in claim 12, it is characterised in that described company Junction is perpendicular to described first surface.

14. Vehicular optical touch device as claimed in claim 1, it is characterised in that described inspection Light-metering is black light.

15. Vehicular optical touch device as claimed in claim 1, it is characterised in that these incline Inclined-plane arranges along the first direction being parallel to described first surface, and each inclined plane is along parallel A second direction in described first surface extends.

16. Vehicular optical touch device as claimed in claim 15, it is characterised in that described One direction is perpendicular to described second direction.