CN1459705A - Contact surface plate device having optical position detection - Google Patents

Abstract

A touch panel device (LC panel or projecting surface of projector) with optical position detecting function is composed of an image pick-up unit for picking up an area on panel, a touch pointer (pen or finger) on the panel and outputting video signal, and an analysis unit for analyzing the video signal to obtain the position of touch pointer on panel.

Description

Contact surface plate device with optical position detection

Technical field

The invention relates to a kind of contact surface plate technology.Particularly about a kind of contact surface plate device with optical position detection.

Background technology

The today and following world, the circulation of information is growing, and is a main flow with digitized information.Along with semiconductor technology, computing machine science and technology, and the development of photoelectric technology, intelligent information make things convenient for masses to obtain information especially, and then are able to carry out some actions through control.

Touch panel (touch panel) is a kind of for a popular instrument of accepting extensively, as the interface tool of information interchange.And its Application Design is, it has a function image (icon) zone.When a function image activates through touching, touch panel can show another picture with its function, and required information or the like is provided.The user is by function square or image on the contact surface plate, the instruction that direct control is set.

The characteristic of touch panel, main is to detect the position of touch points on panel, Fig. 1 is the design concept of known optical detecting contact surface plate.On a panel 100, this position detecting apparatus comprises at least two image capture unit 106, is connected with a signal analysis unit 90.Image capture unit 106 is in the frame place 102 of panel 100, is installed in the zone that difference will be detected with picked-up around the panel, and with an artificial light sources 104 irradiation detecting panels tops.The image capture unit is in order at least one surface of picked-up panel, or an approximate plane that is parallel to the panel top, and at the lip-deep touching pointer 108 of panel, and transfers light signal to electronic signal and export a video.Analytic unit 90 receives this video, and analysis is absorbed two angles of touching thing and learnt that the touching pointer is in a lip-deep position of Contact plate.The U.S. the 6th, 100, No. 538 patents.

Though the contact surface plate image capture of general optical profile type has a detecting maximum height limit, however light source on every side change, time shadow, irradiating angle, side oblique illumination frame is injected the light source of camera lens, when the light source irradiation frame is stronger than the light source of touching pointer, often causes erroneous judgement on every side.If design touching pointer itself has a light source, and be the sole mode of judgements with the intensity of this light source, it needs one to have the quite frame of height, and needs the light source of a high brightness, judges by accident preventing.

Summary of the invention

The objective of the invention is to propose the contact surface plate device of an optical position detection, it can use lamp on every side, the light source that it can use the LCD panel itself to send.And if ambient black can add an artificial light sources in case of necessity, with the irradiation frame, panel, touching pointer.Set border color with one, set frame pattern, set a touching color pattern, a frame can have reflected light with pen, and the method for designing of the optical facilities of printing opacity is with the panel coordinate of easy analysis identification touching pointer.

For achieving the above object, the present invention proposes at least one image-pickup device, tiltedly takes the photograph a flat panel with an angle.For preventing the interference of background light source, can include a line source of pressing close to be parallel to panel, irradiation one touching pointer makes its reflection, so with picked-up touching pointer and detect its position.This be for can needing the design of frame, and line source can be a variable color R alternately, G, and B, the light source of ultrared setpoint color is in order to detecting touching pointer.

The present invention proposes at least one image-pickup device, at least the one image-pickup device absorb one parallel or approximate be parallel to a plane of a panel and constitute one the detecting plane.One light source shines this detecting plane in the position of distance detecting plane one height with a rake angle.The one image-pickup device is with a stravismus plane in addition, and picked-up one touching pointer is to detect its position.The detecting face of this light source irradiation can be the pattern that a visible light shows, is an operating area, is a contact surface plate, is a keyboard.Light source can be one and replaces variable color R, G, B, the light source of ultrared setpoint color.The touching pointer comprises the light emitting source once the touching push button exciting, can be one and replaces variable color R, G, B, the light source of ultrared setpoint color.

The present invention proposes at least one image-pickup device, looks side ways a plane with at least one angle, is one is displaced into another movably plane touching object that to absorb a touching pointer it is the paper of a directivity.Detecting itself and paper a position, be displaced into the relative position of paper with the detecting pen, with the pattern direction data output of the touching object of picked-up detecting one planar shaped in the detecting face.

The present invention proposes the frame method for designing of an optical position detection, and the method for a striped color pattern is with the structure of a printing opacity, with a catoptrical structure, to increase the luminance brightness that frame sends, to prevent optical noise so that erroneous judgement.

The present invention propose one utilize around light source or install a light source with irradiation touching thing, the color pattern that detecting touching thing one is set, analyze its position, structure with a touching thing printing opacity, with the catoptrical construction design method of a touching thing, to increase the brightness that the touching thing sends, to prevent optical noise so that erroneous judgement.

Description of drawings

Fig. 1 is a traditional optical position detection contact surface plate;

Fig. 2 is according to the present invention, a kind of optical position detection contact surface plate;

Fig. 3 A-Fig. 3 D is according to the present invention, the frame pattern structure;

Fig. 4 A-Fig. 4 B is according to the present invention, and touching pointer and extraneous high light are to the influence of frame pattern;

Fig. 5 A-Fig. 5 B is according to the present invention, black and white light sensing unit array;

Fig. 6 is according to the present invention, and a kind of optical position detection contact surface plate uses the light source of visible light;

Fig. 7 A-Fig. 7 C is according to the present invention, colorama sensing cell array;

Fig. 8 A-Fig. 8 B is another design of frame of the present invention;

Fig. 9 is according to a kind of contact panel of the present invention;

Figure 10 A-Figure 10 B is according to the present invention, x, the definition mechanism of y coordinate; And

Figure 11 is according to the present invention, when the touching pen travel near the time, the mechanism of judgement.

90,406: analytic unit 100,200,400: panel

102,202,402: frame 104,204: light source

106,206,404: camera 108,208,408: the touching pointer

210: filter unit 212: light sensing unit

700: frame 702,804: camera

704: filter unit 706: the touching pointer

710: the monochromatic light inductor

430: the light source on plane

431: the light source of oblique illumination detecting face

802: incandescent light source

440: the camera on plane

450,451,452,453,454: the detecting plane

460,480: the detecting face of oblique illumination light

Embodiment

The photography detecting face on embodiment one, one plane:

The present invention is characterized in to utilize pickup image and graphical analysis mode, with the coordinate of detecting touch points on contact surface plate.Fig. 2 is for according to a kind of contact surface plate of the present invention.Contact surface plate comprises a panel 200.Can be a projection in a desktop one tetragonal pattern, it is an opereating specification of a contact panel, it is a keyboard pattern, and a position of the tetragonal pattern of touching is with respect to a position of a display screen, can be a virtual contact panel, to operate the cursor action of a display screen, around the panel 200 frame 202 can be arranged.Panel 200 can comprise a for example LCD panel.Image-pickup device 206 is positioned at a corner of panel 200, has a photoinduction cell array or many strip arrays shown in Fig. 7 A-Fig. 7 C, for example is again 640 to take advantage of 3 lattice arrays, can absorb all scopes of panel 200 tops with an angle of 90 degrees degree.Another image-pickup device 206 is positioned at another corner of panel 200, and its two image-pickup device 206 constitutes at least one detecting face.When touching pointer 208, when striding across detecting face, be considered as a touch points near panel 200.By image-pickup device 206, two the detecting angle gauges that detect touching pointer 208 of reporting to the leadship after accomplishing a task are calculated the position of touching pointer 208.

The present invention proposes a kind of contact surface plate device, and have under the indoor daylight light or use light source irradiation frame and the panel that the LCD panel sends on the contact surface plate, or with the light supply apparatus panel one frame top irradiation frame and the panel of an artificial visible wavelength section.

Fig. 6 is according to the present invention, and a kind of optical position detection contact surface plate is used in the light source irradiation of visible light.This moment, referring to Fig. 3 A, frame 700 can be the alternate striped of the solid color depth, example: chequered with black and white striped or dark green light green alternate striped shown in Fig. 3 A-Fig. 3 D; Referring to Fig. 3 B, or color fringe; Referring to Fig. 3 C, or one and the touching thing of setpoint color or with the single setpoint color frame of a finger different colours; Fig. 3 D, frame 700 can be the white alternate stripeds of black delegation of parallel delegation arranged side by side, or color fringe.The pattern of one touching thing also can be shown in Fig. 3 A-Fig. 3 D.

Its selected mode is easy to differentiate for making touching pointer 706 under frame 700 backgrounds.For example select a blue border, a green pen, a yellow finger, judge finger or pen or frame with the color contrast that the detecting object reflects a natural light this moment, available R, G, B and relative intensity thereof are judged.Detect its intensity of a blue border and for example be R=1, G=1, B=15.One green its intensity of pen for example is R=2, G=15, B=2.One yellow its intensity of finger for example is R=8, G=8, B=1, analysis is learnt and is at least one the position or the position of finger, it also can be the position that finger is detected at least one setpoint color pen when coexisting with at least one pen, the color of finger can change because of the people, can use the border color and a color that are different from the hand color, can cover blue border with hand, have that a rational size and color and frame are different with pen to be judged, or the input of the learning records before using one its color of finger, to set its color of finger, this setpoint color of also can be the data of an input, example: photograph one be a color then panel write a line and show same color, can install the optical inductor of a filtering invisible light, disturb with the color analysis of avoiding invisible light.

This frame also can design by a candy strip, and the photographic record of analytic unit stores this data in moulding line gap on one side.For example shown in Fig. 4 A-Fig. 4 B, a frame is the fine and closely woven striped of black and white contrast, and its fine and closely woven degree is for covering by touched pointer 208.Analytic unit 90 can be according to the data of the fine and closely woven striped of setting, judge that the striped gap loses the place and covered by a touching pointer 208, or analytic unit 90 can more present view data and its front bezel one candy strip photorecording storage data, judge two view data striped gaps do not exist together by one the touching pointer 208 covered, so use the noise to remove camera lens dust etc., striped frame design like this, if the striped of a section is a strong illumination, but its black and white strip gap of identification still, this striped are also colored.

One for fear of two image-pickup devices 206, because of residing environment, cause efficient not good, it can install at least three capturing apparatus 206, removal can't be detected at least one capturing apparatus of the fine and closely woven striped of tangible black and white contrast or remove a section of the capturing apparatus inductor that can't detect the fine and closely woven striped of tangible black and white contrast, the touching pointer is better near capturing apparatus resolution, and at least three capturing apparatus can be selected the preferable at least two capturing apparatus action of resolution.

The fine and closely woven striped that above frame 3A-3B figure sets, can be as the coordinate standard of a detecting, can be as the correction graph of a detecting capturing apparatus angle, can do the deviation of the automatic corrective lens optics of capturing apparatus, error with automatic correction assembling capturing apparatus picked-up angle when the panel (causes x, the y site error), even level error (the z error of picked-up, so that picked-up is less than the fine and closely woven striped of frame, can install many inductor this moment, selects the multilevel plane of picked-up to use) so that the position judgment error.It can even can its capturing apparatus be to separate with frame as the pattern of a detecting position correction, detects the position from normal moveout correction when assembling.

If there is a strong incandescent light or a desk lamp panel side, through frame when being irradiated into optical inductor or during periods of direct sunlight irradiation frame, this moment, the optical inductor of capturing apparatus may be crossed the strong color of differentiation frame or the color of pen of can't moving because of incident light, or a candy strip of frame enters camera lens because of incandescent lamp or anaclasis on the one, and can't the identification candy strip.For example shown in Fig. 4 B, the candy strip at high light place becomes a clear zone section to its situation.

Be the phenomenon of solution clear zone section, or extraneous interference, the present invention proposes several solutions.

Fig. 5 A-Fig. 5 B is according to the present invention, black and white light sensing unit array.Light sensing unit 212 corresponds to a detecting point.Corresponding to the high light section among Fig. 4 B, the light sensing unit array has a saturated section 214.The present invention utilizes the control of analytic unit 90, can do an adjustment at the magnification (gain) of this section.If environment of living in has the many places high light, shown in Fig. 5 B, it may for example be divided into several segments 216-224, and different magnifications is arranged respectively.The adjustment of this magnification is also applicable to the light sensing unit array of colour, also applicable to ultrared light sensing unit array.

And its a kind of mode is adding lustre to property mechanism design, under the situation shown in Fig. 8 A, when the optical inductor of capturing apparatus 804 absorbs one, may be strong excessively because of strong incandescent light source 802 irradiates lights of its background one, and can't distinguish the pen color the time, example: one be positioned over one 100 watts light before, the color that camera picked-up is because the background high light can't distinguish.Can be designed to the pen of a setting green color printing opacity this moment, but pen is crossed in then strong incandescent light source 802 radiance break-through, make the green brightness that increases pen, incandescent light source 802 is strong more, then the green brightness of She Qu a image is strong more, inject the interference of camera lens to reduce the high light background illumination, here be called the light transmission mechanism of adding lustre to, other method also can add a smooth echo area in an inside, can make ambient light enter an interior back reflection improves the green brightness of pen one section, here be called the reflectivity mechanism of adding lustre to, and pen can have a light source one flicker one Frequency Design, pen can have a pattern of setting.So can under the situation that does not need frame or low frame height, pick out at least one touching shift position, pen can have a touching switch one light source, when touching switch activator one light source, be considered as touching place, or detect an image and very be considered as a touching near the picked-up plane of panel in one, pen can have figure such as Fig. 3 A-Fig. 3 D that sets to be recognized as at least one touching thing with the photographs analysis, can detect the luminous and frequency of pen, coming analysis and judgement is that a style of writing bumps the place.

Again or other method for designing, shown in Fig. 8 A-Fig. 8 B, utilize design concept same as described above, frame 800 also can be designed to comprise a photic zone 800a and a photic zone 800b, and it can be a colorful light-permeable district 800b.So, when frame 800 under the irradiation of intense light source 802, colorful light-permeable district 800b still can know and distinguished.And for example shown in Fig. 8 B, there is an echo area 806 in frame 800 outsides, can make light enter echo area 806 by frame 800 backgrounds, shine again in frame pattern through reflection, the light source 802 of background is strong more, and then the brightness of She Qu frame pattern is strong more, or the light source of echo area 806 reflection one LCD panel emissions itself, make the light source of the brightness or the LCD panel emission of frame below itself of increase frame pattern, shine an echo area 806 and make the frame pattern reflection.The light intensity increase that so the makes frame then influence of ambient light then diminishes, and is called the reflectivity mechanism of adding lustre to here.

The selection of above-mentioned black and white has preferable contrast, desirable its white partly can reflect the white color of its setting except light source irradiation, also the material of a printing opacity makes it send brightness can to improve because of background light source irradiation, the black color place then shouldn't printing opacity, improve black and white contrast, be called light transmission add lustre to mechanism, so its combined colors here, printing opacity and the not combination of printing opacity or complete printing opacity design, folk prescription does not break away from feature of the present invention to the design of printing opacity reflected light plated film yet on other optics.Other blue-black for example, green white, red white, the combination of Lan Hong also can, the design of the light tight reflected light combination of the also available printing opacity of the frame of one solid color, or forming candy strip with the depth of solid color, light transmission or catoptrical purpose increase at least one colour light emitting intensity that makes frame, and the light and shade contrast of striped is improved.

Above design also can change infrared light sources irradiation into, camera is an infrared inductor, and frame is black and white stripe design, and the angle of camera also can change at least one capturing apparatus 206 into 640*480 point cmos sensor, with the contact surface plate of rake angle picked-up one detecting.Frame 700 also can be in order to placing a desktop of this device, and it has a color to be different from the color of a touching thing or a finger.Its method can be further with reference to following embodiment three and embodiment five.

Embodiment two, a design of optical inductor:

The present invention proposes again, cooperates the structure of the optical inductor of running.Optical inductor for example can by one or many photoinduction cell arrays constitute.Fig. 7 A is by R, the photoinduction cell array that G, the sensor unit of B form.In addition also can be by the cmos sensor that two parallel lines are arranged, shown in Fig. 7 C, 633*2 point for example.Article one, optical inductor can install R, 633 points that G, B optical inductor replace, the optical filtering design that can install the filtering invisible light.Article one, optical inductor 710 can install partly visible light of filtering, it is R, G, the monochromatic light inductor one of among the B or infrared C MOS inductor 633 points of filtering visible light, and with R, G, B optical inductor 633 o'clock is divided by 3, one about position of color mode detecting setpoint color pen or hand is to prevent erroneous judgement.With R, G, the monochromatic light inductor 710*633 point among the B is detected the setting R of same color, G, the monochromatic pen of B is an accurate position of position approximately, or detects the setting R of same color, G, the frame of one of B is with the accuracy of raising position detecting.This can be sent infrared ray by a touching button again, detects 710 with an infrared light sensor location detecting or with the monochromatic light inductor of one of redness, the accuracy that so can improve a position detecting, an about position of also colored detecting hand simultaneously.It is that the color of frame or pen reaches same purpose that the also color of this single colored light inductor detecting can be made as, and other method is the cmos sensor that optical inductor has many parallel lines, and it is many a different colours, and each bar is the 633*3 point for example.For example blue B of a green G of a red R shown in Fig. 7 B, can improve the accuracy of detecting.

Embodiment three: the capturing apparatus of optical detection apparatus stravismus photography:

At least one image-pickup device 404 is with angle stravismus picked-up panel 400, and an alternative light or an infrared light sources 430 can be pressed close to panel 400 places by device, and a light source 430 irradiated plane of panel 400 are pressed close to and are parallel in formation one.Alternative comprises a light source 431, and the sign in the visible pattern of a projection to be a user touch zone.

Optical position detection device principal character of the present invention is to utilize pickup image and image mode, with the coordinate of detecting touch points on contact panel, image-pickup device 404 stravismus are a background with the panel 400 of touching, are a frame, can not need a panel 400 a high frame 402 all around.For preventing that the background emergency light reflex from going into the interference of camera lens, can use one to be difficult for the optical noise of reflective panel surface with light source around solving.

Fig. 9 is for according to a kind of contact panel of the present invention.Contact panel comprises a panel 400.Panel 400 can comprise a desktop of LCD panel for example or projector projection, can be a projection in a desktop one tetragonal pattern, be an opereating specification of a contact panel, and a position of the tetragonal pattern of touching, with respect to a position of a display screen; Or touch a setting regions relative with an optical position detection device on desktop, one touches in a virtual contact panel to operate the cursor action of a display screen.At least one side shape image-pickup device 404 will be located at panel 400 around, for example in a corner, can being a detecting face 460 with all scopes of an angle example 15 degree stravismus picked-up panels 400.Picked-up face resolution 640 * 480 points.Face shape image-pickup device 404 is analyzed unit 406 with a picture signal and is connected.Picture signal analyze unit 406 also can in be built within the image-pickup device 404, become one.When a touching pointer 408, for example one-pen or finger, contact surface plate 400, face shape image-pickup device 404 picked-up panels 400 and touching pointer 408.Signal analysis unit 406, identification are analyzed touching pointer 408, learn its touch points P at panel 400 detecting faces 480.

See also Figure 10 A-Figure 10 B, it is according to the present invention, x, the definition mechanism of y coordinate.In Figure 10 A, for example work as image-pickup device 404 by a corner, to panel 400 picked-ups.It is defined as the x coordinate in the viewing angle distribution of a direction.The scope of its x for example is 0-640.Figure 10 B, with Figure 10 category-A seemingly, be defined as the y coordinate.The scope of its y for example is 0-480, and it is the sectional view on the y plane.

For example, detecting touching pointer 408 is at picked-up face x=320, and y=470 analyzes and knows that touching pointer 408 is above panel 400 centers.Example is in the x=320 of picked-up face, and y=220 touches pointer 408, and the position is in panel 400 central lower.Example detecting touching pointer 408 is at picked-up face x=310, and y=100 analyzes touching pointer 408 at panel 400 center lefts.Example picked-up face x=330, y=100, touching pointer 408 is right-hand at panel 400 centers, so judges touch position with two angles of single face shape image-pickup device 404 detectings.

Touching pointer 408 can be a column the most advanced and sophisticated outstanding shape of a directivity, it is one or the finger for stretching out on the other hand that example one rectangle column has most advanced and sophisticated giving prominence to, one has angle such as Figure 10 B that limits with image-pickup device 404 when using, example: image-pickup device 404 1 oblique angles 30 degree picked-up panels 400, touching pointer 408 needs greater than 30 degree examples with the angle of panel 400 restrictions: be 90 degree, see also Figure 10 B, Figure 11, so touching pointer 408 is photographed by image-pickup device 404, reason because of the picked-up angle, the tip of touching pointer 408 is range image capturing apparatus 404 the most approaching places, and an explanation is below arranged.

Touching pointer 408 can have the different color detecting data of color data that an input sets and panel 400, or touching pointer 408 1 finger or one have a detecting data to be: a reasonable size size data, with panel 400 detecting data of different color patterns is arranged, or can the preceding color size of learning input pen or finger of a use be a detecting data of setting also, or one most advanced and sophisticated highlight has color pattern data of set analyzing, and seeks touching pointer 408 to analyze.Panel 400 also can be ingested and be input as the color data of the setting of a background, uses to analyze.

In addition, Trackpad of the present invention is not because face shape image-pickup device 404 touches panel 400 as yet with angle stravismus picked-up panel 400, one touching pointers 408, and quilt cover shape image-pickup device 404 detects, so that think a touching by mistake, the decision of its touch points can have several modes.

A kind ofly be, when touching pointer 408 stops at the panel touch points b of 400 a period of times, the position that this moment, this touch points of decidable b touched for user's desire.Yet if touching pointer 408 is that a move mode carries out, touching pointer 408 does not stop time enough in the position of desire touching.Touch pointer 408 and move and do not touch panel 400 this moment, and right image is judged as touching pointer 408 and moves on panel 400, can cooperate by judging among at least one touch points b and image-pickup device 404 the most approaching places, is decided to be the position of desire touching.This kind mechanism is called minimum distance analytical approach mechanism in the motion process again.

As Figure 10 B and shown in Figure 11, especially for example, image device 404 is with oblique angle θ picked-up panel 400.The scope of oblique angle θ can arrive about 45 degree greatly, but is preferably the 3-30 degree.Because photographic effects is the image of two dimension, its corresponding photographic plane 900 is image surfaces of being seen by image-pickup device 404.When touching pointer 408 entered panel 400 by the outside, the tip of touching pointer 408 was seen by image-pickup device 404, and a picked-up touch points a is arranged on panel 400.When touching pointer 408 touches panel 400, another picked-up touch points b is arranged.Touch points a range image capturing apparatus 404 is far away, and touch points b range image capturing apparatus 404 is nearest.Otherwise, after touching pointer 408 stops one enough period, just remove.The touching pointer 408 of photographing at this moment, begins outer moving again.Seen that by image-pickup device 404 tip of touching pointer 408 is got back to picked-up touch points a again on panel 400, therefore, in once moving, touching pointer 408 range image capturing apparatus 404 the most approaching places in the pickup image, being defined as real touch points, promptly is touch points b.This is a minimum distance analytical approach in the motion process.

A kind ofly be, one light pen, one touching pointer 408 has a touching switch, a light source is sent in one touching, a light-emitting zone that is one nib place has a protruding tip, at least one face shape capturing apparatus 404, can detect this light signal, detect a bit that set in the source region in the pickup image signal, be defined as the relative reference position of real touch points, desirable shape capturing apparatus 404 detects in the multiple spot position of this this light signal, for with any coordinate at the most approaching place of capturing apparatus 404, be defined as the relative reference position of real touch points, one has the nib of writing is a real touch points, yet light-emitting zone is a bit very close with the nib of writing, and can be the reference relative position of a touching.

When the angle of one use surpasses restriction, a light-emitting zone of one with capturing apparatus 404 when using, the image of this light-emitting zone can become big because of distance with capturing apparatus 404 is close, can be detected one by many photoinduction unit and set a light-emitting zone of detecting, the analytical approach at approaching place then, may miss a bit being to be considered as a touch points with panel apart from the farthest in the nib place light-emitting zone in the light-emitting zone of one of detecting in the pickup image, be the position of an error.

A kind of is to have at least two face shape capturing apparatus 404, as shown in Figure 9, with the analytical approach at approaching place, can be directly detect the coordinate at approaching place of touching pointer 408 with two face shape capturing apparatus 404, analyze the three-dimensional position of touching pointer 408 near a protruding tip of panel 400, analyze a touching and be displaced into panel 400 positions, an at least one pen like this or a finger have at least one protruding tip with contact surface plate 400.Again, one one of holding or a pen tip place or a finger, at least one color pattern different with panel 400 arranged, or one touching 408 1 on pointer or a nib place the one detecting color pattern of setting can be arranged, or around the nib place of 408 1 on a pointer of touching a light-emitting zone can be arranged be a protruding tip, and condition that can a detecting identification is an object movably for touching pointer 408.

Signal analysis unit 406, identification are analyzed a zone of touching pointer 408, with the coordinate analysis method at approaching place, do not need the image identification complicated approach, detect most advanced and sophisticated three-dimensional position, and the detecting touching is displaced into panel 400 positions.A touching thing like this have one with a tip of panel 400 different colours, one touches or is displaced on the panel 400, can be through the color pattern of photography panel 400 backgrounds, analyze and set its color pattern, or the color pattern of panel 400 backgrounds that relatively store of photography, because the restriction of use angle, the touching thing is most advanced and sophisticated adorns 404 the most approaching places for detecting with background regions of different colours middle distance image capture in the image capture, analyzes the position that it is displaced into panel 400.In this mode, the relative reference point of practical touch position is used as at the most approaching place, and this is because detecting point and practical touch position may have some elementary errors distances.In addition, can select to import the touching thing the interior detecting data of one fair-sized range of size is arranged, with identification one zone is background or touching thing, one holds one has an angle that limits with image-pickup device 404 when using, do not face capturing apparatus 404 but reverse if the direction that its use of of holding is is not a pen, if a detecting data is the zone of searching with the panel different colours, then this device may be a zone of proficiency, takeing for is touching thing tip, the position judgment of mistake.

Please refer to Figure 11, another kind method is except face shape capturing apparatus 404, install the image capture unit 440 of at least one linearity, be positioned at a place of this device, this linear image capture unit is with the approximate parallel at least one plane of pressing close to this panel of picked-up detecting one, and this at least one touching pointer, to detect this position of touching pointer 408, face shape capturing apparatus 404 and linear image capture unit 440 all detect touching pointer 408, promptly are touch points b.

Another method is the light of a setting wavelength, or be that one alternately one to change wavelength be a changes colour R, G, B, one ultrared light source 430, one specific flicker frequency can be arranged, can press close to panel 400 by device, go to press close to and the shadow surface that is parallel to panel 400 is the light source on a plane into one, when so a finger or a style of writing bump pointer 408 and touch panel 400 in the detecting face 480, just by the light source 430 irradiation reflections on plane, just detected the reflected light of light source 430 irradiation touching pointers 408,, can not need the design of general frame with embodiment one difference by the image-pickup device 404 at oblique angle, so image-pickup device 404 is a background with the panel 400 of touching, is a frame.This image-pickup device 404 can have a R, G, a detecting of B sensing unit or a ultrared sensing unit are with detecting, position when learning 408 touchings of touching pointer, this light source 430 alternately sends the light of different wave length, the different wave length detecting that the image capture unit sends according to this light source, example: the photography of image capture unit stores the data of panel 400 backgrounds, this light source 430 sends the light of a redness, panel 400 can not reflect the light that this light source 430 sends a redness, the image capture unit is with the sensing unit detecting of redness, and one photography of image capture unit is the data of a photography storage background relatively, learns the reflected light the zone whether redness when increasing by 408 touchings of touching pointer is arranged.So alternately sending R, G, B, ultrared color according to the color detecting that this light source sends, so can adapt to the panel 400 of different colours.The method that detecting is analyzed:

The top that at least one touching pointer 408 is positioned over panel 400 is not touched, and is not shone by a light source 430, is not detected reflected light by image-pickup device 404, is not touching.

At least one touching pointer 408 is positioned on the panel 400, detecting face

480 outer places are shone by a light source 430, and image-pickup device 404 does not detect reflected light, are not touching.

At least one touching pointer 408 is positioned over a place of detecting face, is shone by light source 430, and then image-pickup device 404 detects the reflected light of a light source 430, is a touching, is a position with two of one side shape image-pickup device 404 detecting angle detections.At least two detecting angle detections with two diverse location face shape image-pickup devices 404 are a position.

The light source 431 that one detecting face can be arranged, be that the visible light detecting face that is projeced into is a figure, light source 431, it is a sign in a user the zone of touching visually, example one keyboard or a tetragonal contact surface plate, light source 431 can with a shadow surface light source 430 alternating movements of pressing close to and be parallel to panel 400, avoid interference and be parallel to the catoptrical detecting of panel one touching, light source 431 also the light source of a detecting in embodiment five explanations.

A kind of method is a touching pointer 408 to be one, its nib place has one to set the color pattern of detecting, the color pattern of this setting is different with panel and hand, with 404 detectings of at least two image devices, and can carry out the nib place position detecting of 3D, whether the place has touched panel 400 with the detecting nib, with the touch position detecting of detecting touching pointer 408 in panel 400.

Above design, can touch pointer 408 is a light pen, and nib sends a light signal when removable, can one sends a light signal during touching, can be one and alternately send different colours R, G, the light source of B can have a specific flicker frequency, with at least one image device 404 detecting position, and resolution can be because of not using R, G, the sensing unit reduction of B.This is because the position of a touching pointer 408 can be detected by the sensing unit of a color, and this method also can be used in the luminous light source of an irradiation, or the luminous touching pointer of embodiment one.Please refer to the arrangement of Fig. 7 A sensing unit, an image capture unit has arranges R in regular turn, G, the sensing unit of B, one is alternately sent R, G, and the light source of B, one position can be detected by a sensing unit, if one is venerated the light source that sends R, G then, the sensing unit of B can't be detected its position.And among the present invention, a kind of position analysis of optimum sensitivity is: R is alternately sent in detecting one, G, and the position of the pen of B, it needs the nib place of pen alternately to send R, G, behind the light source of B, analytic unit is just judged its position.The position that a sensing unit among analysis and judgement Fig. 7 A detects pen is sensitivity, this sensing unit can be R, G, the sensing unit of one of B alternately sends R, G because can detect the nib same point, colour light source in the light source of B, so sensitivity can not reduce, and analyzes that the most left and the rightest sensing unit can detect the position of a sensing unit in one section sensing unit of Fig. 7 A, and can can't not detect the precision positions of pen because of sensing unit has different colors.And a position of its desirable centre is the position of touching, for example gets its mid point or by the light intensity distributions relation, obtains the position of intensity maximum.The position that pen moves a sensing unit in the pickup image like this, the image capture unit can detect the position that a sensing unit is also moved in the most left and the rightest position that detects the sensing unit of a light signal among Fig. 7 A, this is called, the position analysis of optimum sensitivity.

Moreover touching pointer 408 can design a pattern color of setting again, can touch the setting patterning that pointer 408 has adding lustre to property mechanism, to prevent that optical noise is with easy detecting.

Embodiment four: the design of flat shape touching object and the detecting of a writing position:

Below the Another Application of the design of one side shape capturing apparatus 404 is one for detecting one touching pointer 408 at least, write in another flat shape touching object, a paper for example, touch position.Please refer to Figure 11, can have a plane movably to touch object, it for example is a colored paper, be a white paper, or be the setting pattern that a paper has a directivity, or be that a paper has a directivity shape, being positioned over (see figure 9) on the panel 400, is the desktop of a different colours or pattern.At least one side shape capturing apparatus 404 has colour or black and white or the ultrared photoinduction cell array of 640*480, and angle stravismus or at least one detecting face of direct-view picked-up are arranged.One oblique illumination detecting area source, 431 irradiated plane shapes touching object can be arranged again, is an infrared ray or visible light.Face shape capturing apparatus 404 can absorb the removable touching object of writing in a plane on the detecting face, according to its shape of input, brightness, color, pattern, the detecting data analysis learn that it is one to set the article write.Example: a white paper, a notebook, square object.Object is movably touched on the plane can have the setting data of the input of a size or shape or a color or a pattern to debate knowledge flat shape touching object with analysis, or the data of the removable touching object of writing in a plane are imported in the study before using.

Can be with the output of following setting and the analysis of a method.Example: the touching object setting data on the plane of a tetragonal input is to detect a touching pointer 408, pick out a square object, the data that meet the removable touching object of writing in plane of input, its size is learnt in analysis, its color, and it is positioned at the position on the detecting face, example: the square object upper left corner is X=100 Y=200 on the detecting face, the upper right corner is X=300 Y=200 position, and colours white is wide=10Cm length=20Cm.

Example: a white object touch the object setting data, meet the data of white input to detect a touching object, detecting is analyzed and is learnt its size, analyzes and learns that it is positioned at the position on the detecting face.Example: detecting position, a white square object upper left corner is, X=100 Y=200, and the upper right corner is X=300, Y=200 is wide=10cm length=20cm, and exports this signal.So, this white square object is positioned on the desktop of a detecting, and its direction can be aimed at arrangement for detecting, and angular error is not more than 40 degree.The touching object can have the position to move, and can allow a style of writing to bump in this white square object again, and the detecting writing position.Generally speaking, if the paper that the user places a white circle that moves or do not have directivity then can't use.

The removable touching object of writing in plane also can design one and be set with the pattern of a direction for identification.Example: there is a dark great circle in a circular paper one upper left corner, one to go up the angle again be light color one small circle, or the upper left corner one dark color one arranged the square pattern all can, then 208 on a touching pointer can be write in can be by the shift position of the touching object on a plane of detecting position by detecting.

Data that the detecting of the touching object on one plane is set even can be the shape area of a directivity and then can with color is different all around, so place color four directions type paper on the detecting panel of different colours, then in detecting face, seek the different zones that a directivity shape is arranged with ambient color, the touching object on an alternative plane has the detecting data of an about size dimension, investigate out its direction position size color of paper, then one can be write in paper by the touching pen of detecting position, detect the touch position of pen, paper moves, also can detect a detecting face position of paper, detect pen and a relative position of paper, detect one and write in the color of paper and export a signal.

One function is the pattern direction size data that also can to detect the removable touching object of writing in plane be a paper, and example is the data output of the pattern magnitude direction of a business card, for the data of identification business card.

One function is movably touched object for an also plane, and a touching pen travel is touched in this plane and movably touched object, exports the coordinate signal that object is movably touched on a plane, is that a contact surface plate function is the function of a keyboard.

Embodiment five: a kind of method is a detected light regional location method for detecting of a setting sun light source irradiation.

As Fig. 2: an optical detection apparatus is positioned over detecting plane 200, at least two image-pickup devices 206 absorb and detect a plane of plane 200 parallel or approximate parallel planes 200 for the detecting point of 640*4 or 640*1, this plane 200 of one light source, 204 oblique illumination, be projected as a depth color and form a rectangular keyboard pattern, an or tetragonal contact surface plate pattern, or be the zone of a square of an infrared radiation, it is a detection area, the scope of one frame 202 with the restriction detecting maybe can be arranged, shine at least one detecting point in this square, it is a detecting face 480, shine this touching pointer 208, one light source 204 can be a visible light, is that the zone of an operation indicates pattern, and capturing apparatus 206 detectings one light source 204 shines the position of analyzing its touching in the reflected light of this touching pointer 208.

Below be several situations:

The top that at least one touching pointer 208 is positioned over detecting face 480 is not touched, though shone by a light source 204, the detecting plane of image-pickup device 206 does not detect the reflected light of a light source 204, is not touching.

At least one touching pointer 208 is positioned over detecting face 480 outer places and is not shone by a light source 204, and then image-pickup device 206 does not detect reflected light, is not touching.

The place that at least one touching pointer 208 is positioned over detecting face 480 is shone by a light source 204, is the reflected light that two image-pickup devices 206 detect a light source 204, is a touching, is a position with two of two image-pickup devices 206 detecting angle detections.

According to the planar light source of embodiment three and the setting sun light source of embodiment five, the one same principle is:

One image capture unit, the contact surface plate of one indefinite color, one touching pointer, one alternately sends different colours R, G, the light source of B or the light source of single look, its direction has an angle with this at least one image capture unit picked-up direction, this image capture unit can not detect the reflected light of this light source irradiation in a contact surface plate, this image capture unit detects this touching pointer and touches in this contact surface plate and reflect this different colours R, G, the light source of B, analysis is a touch position, can select to absorb a background image and save as analysis data relatively.

Embodiment six: virtual contact panel and dummy keyboard design.

Utilize the optical detection apparatus of touching pointer 408 and embodiment four on the plane of above embodiment three, the present invention proposes the virtual contact panel dummy keyboard design of an optical detection apparatus, the contact surface plate device of one optical position detection that can move arbitrarily is positioned over a plane, example one desktop, one display screen, the position of one display screen, one pattern displaying touching operation, moving of example one cursor, at least one touching pointer, camera is detected the detecting face zone on this desktop, and alternative has the device of a projection, or places a paper or books, or a directive object, or the paper of a keyboard pattern is in this plane.

As for, virtual contact panel dummy keyboard for example can be:

1. can be that a projection is a virtual contact panel operating area in a desktop one tetragonal pattern square on the detecting face.

2. can be on the detecting face projection in the pattern of 2 of desktops, a zone that is defined with directivity.Example: 4 of a projection square corner is four corners of a virtual contact panel, example: 2 of the tops in a projection square corner are top 2 points of a virtual contact panel.

3. can be on the detecting face one with a zone of optical position detection device detecting relative position of the present invention, example: a device detecting face installs lay down location one direction for this, the 5Cm place, the zone of a 10Cm*10Cm, can an operation instruction to tell the user.

4. can be on the detecting face object of a directivity movably, example: the tetragonal paper movably in its position of detecting can be a contact surface plate operating area.

5. can be detecting face one and optical position detection device of the present invention, the object of a directivity movably on the detecting face, a zone that defines, example: the zone of a direction one 10Cm*10Cm of the object of a strip on detecting face with directivity.

6. can be on the detecting face of an optical position detection device of the present invention movably a directional pattern and be one and be printed on the paper of keyboard.

More than 4 to 6, its purpose is all provides one to have the object of a directional data to analyze its position size direction for identification, then can be set at a virtual contact panel, the user adds that one can detect the touching pointer of its touch position, can be considered as a contact panel to it and use.In addition, the detecting face that can detect changes the object of the position of a contact surface plate for this setting after one object of setting is arranged automatically.

Embodiment seven

Another kind of application architecture is the application at mouse.And the touching object can be a mouse.Mouse has a pointer structure, has identifiable setting pattern.Set pattern and for example can comprise having aforesaid active illuminating functional mechanism again, or a color pattern.Because the operation of mouse is placed in the plane on the panel, therefore only need an image-pickup device to implement.Yet, can increase one or more image-pickup devices in order to solve the detecting error or the dead angle of some aforementioned discussion.Its detecting mode, only pin is the identification of the pointer structure of mouse, the position of panel, and the pointer structure of mouse is in the position of panel.Herein, panel also can be that a zone is a virtual panel.

Above-mentioned, the touching pointer is set the mechanism of pattern and adding lustre to property and the data of plane touching object detecting identification, the design of frame pattern, cooperate the design of optical inductor, light-struck direction is to shine a detecting face, one replaces the light source and pen of different wave length, and it all can carry out composite design according to the environment of actual desire use.

Claims (33)

1. the contact surface plate device with optical position detection is characterized in that, this device comprises:

One contact surface plate;

At least one touching pointer sends light sources of different colors;

One frame has one and sets pattern around this contact surface plate;

There is the photoinduction unit of different colours at least two image capture unit, are positioned at two positions of this frame, with this touching pointer and this frame on the picked-up contact surface plate; And

One analytic unit receives and analyzes the data that this at least two image captures unit is absorbed, and with the position analysis of optimum sensitivity, the analysis showed that the positions of panels of this touching pointer.

2. the contact surface plate device with optical position detection as claimed in claim 1, it is characterized in that, this setting pattern of this frame comprises the alternate striped of a solid color depth, one colored alternate striped, more than one and the striped of different colours parallel with this contact surface plate, more than one and the striped of shade parallel with this contact surface plate is with a single setpoint color one.

3. the contact surface plate device with optical position detection as claimed in claim 1 is characterized in that, this setting pattern comprises a fine and closely woven striped, and this fine and closely woven striped also can be used for a correction of this at least two image captures unit, and this correction comprises a picked-up angularity correction.

4. the contact surface plate device with optical position detection as claimed in claim 1 is characterized in that, this frame is the material of a color light-permeable, comprise a complete light-permeable zone, comprise more than one light tight zone, and a plurality of light-permeables zone, alternate combining, the two one.

5. the contact surface plate device with optical position detection is characterized in that, this device comprises:

One contact surface plate;

At least one touching pointer sends light sources of different colors;

One frame has one of adding lustre to property mechanism and sets patterning around this contact surface plate;

At least two image capture unit are positioned at two positions of this frame, to absorb this setting patterning of this touching pointer and this frame; And

One analytic unit receives and analyzes the data that this at least two image captures unit is absorbed, and with the position analysis of optimum sensitivity, the analysis showed that the position of this touching pointer.

6. the contact surface plate device with optical position detection as claimed in claim 5, it is characterized in that, this setting patterning of this frame comprises the alternate striped of a solid color depth, the striped of one or two parallel different colours of striped that one colour is alternate, more than one and the striped of shade parallel with this contact surface plate is with a single setpoint color one.

7. the contact surface plate device with optical position detection as claimed in claim 5, and this striped also can be used for a correction of this at least two image captures unit, this correction comprises a picked-up angularity correction.

8. the contact surface plate device with optical position detection as claimed in claim 5, it is characterized in that, this adding lustre to property of frame mechanism is the light transmission mechanism of adding lustre to, it is the material of a color light-permeable, comprise a complete light-permeable zone, comprise more than one light tight zone, and a plurality of light-permeables zone, alternate combining, the two one.

9. a position detecting apparatus is applicable to a panel, and to learn the positions of panels of touching pointer on this panel, this position detecting apparatus comprises:

At least one touching pointer;

At least one side shape image capture unit, be positioned at a place of this device individually, absorb this plane of being detected with a rake angle, it is characterized in that, this at least one image capture unit has many lines and many alignments, intersects to constitute a coordinate surface, in order to absorb at least one plane of this panel, and absorb this at least one touching pointer, and export one first video data;

At least one planar light source, this planar light source are pressed close to panel and are formed one and press close to and an approximate shadow surface that is parallel to this panel, with this at least one touching pointer of irradiation;

Selectivity is provided with at least one linear image capture unit, is positioned at a place of this device, and this linear image capture unit is with the approximate parallel at least one plane of pressing close to this panel of picked-up detecting one, and this at least one touching pointer, and exports one second video data; And

One signal analysis unit, receive this this first video data and this second video data of should at least one linear image capture unit exporting of output of one side shape image capture unit at least, through a graphical analysis, learn this at least one touching pointer this lip-deep positions of panels in this panel.

10. a position detecting apparatus is applicable to a flat panel, it is characterized in that, this position detecting apparatus comprises:

At least one touching pointer;

At least one flat shape is movably touched object, places on this flat panel;

At least one side shape image capture unit, be positioned at a place individually apart from this flat panel one height, wherein this has many lines and many alignments in one side shape image capture unit at least, intersect and constitute a coordinate surface, absorb at least one plane of this flat panel in order to an oblique angle, and this at least one touching pointer of picked-up, and absorb this at least one flat shape and movably touch object, and export one first video data;

Selectivity comprises at least one linear image capture unit, is positioned at a place of this device, and this linear image capture unit is with the approximate parallel plane of pressing close to this flat panel of picked-up detecting, and this at least one touching pointer, and exports one second video data;

Alternative comprises a light source, can press close to this flat panel, forming one presses close to and an approximate plane shadow surface that is parallel to this flat panel, with this at least one touching pointer of irradiation, wherein when this at least one this at least one flat shape of touching pointer touching was movably touched object, this light source was detected this at least one touching pointer by this at least one touching pointer reflection to assist; And

One signal analysis unit, receive this this first video data of one side shape image capture unit output at least, through a graphical analysis, learn this at least one touching pointer this lip-deep positions of panels in this flat panel, and learn that this at least one flat shape movably touches object this lip-deep positions of panels in this flat panel

Wherein, this signal analysis unit also can receive this second video data of this linear image capture unit output, with this positions of panels of this at least one touching pointer of assistant analysis.

11. position detecting apparatus as claimed in claim 10, it is characterized in that, detect this at least one flat shape via this signal analysis unit and movably touch this positions of panels of object and this positions of panels of this at least one touching pointer, so this at least one flat shape removable can the touching object comprise the object that can be write, this at least one touching pointer is the object that can write.

12. position detecting apparatus as claimed in claim 10, it is characterized in that, when this touching pen travel and touch when movably touching object in this to flat shape, this face shape image capture unit and this linear image capture unit are also detected the station-keeping data that this touching pointer and this flat shape are movably touched object simultaneously.

13. position detecting apparatus as claimed in claim 10 is characterized in that, this flat shape is movably touched the identification feature that object has a setting and has directivity, can carry out identification according to an Identification Data of internal reservoir by this signal analysis unit.

14. position detecting apparatus as claimed in claim 10 is characterized in that, this identification feature that this flat shape is movably touched object comprises a square shape.

15. position detecting apparatus as claimed in claim 10 is characterized in that, this identification feature that this flat shape is movably touched object comprises: a setpoint color cooperates a directional pattern, a direction initialization pattern, and a setpoint color, three's one.

16. position detecting apparatus as claimed in claim 10 is characterized in that, this identification feature that this flat shape is movably touched object comprises an object size data.

17. position detecting apparatus as claimed in claim 10, it is characterized in that, this comprises with two face shape image-pickup devices one side shape image capture unit at least, in order to detect three detecting angles of this touching pointer, calculate the position that this touching pointer is touched, and two detecting angles that detect this touching pointer with a face shape image-pickup device, calculate the position that this touching pointer is touched, and three detecting angles that detect this touching pointer with a face shape image-pickup device and linear image capture unit, calculate the position that this touching pointer is touched, three's one.

18. position detecting apparatus as claimed in claim 10 is characterized in that, this signal analysis unit is with minimum distance analytical approach in the motion process, to detect this position of this at least one touching pointer.

19. an optical position detection device movably is placed on the flat panel, it is characterized in that this device comprises:

One display screen has a display pattern;

At least one touching pointer; And

One optical position detection unit comprises at least one photography assembly, and a plane of absorbing this panel with a rake angle reaches this at least one touching pointer, and a touch detection zone is wherein arranged on this plane, constitutes a virtual contact surface plate,

Wherein this at least one touching pointer can be detected when this virtual contact surface plate of touching, corresponding to an X of this virtual contact surface plate in this optical position detection unit, the Y coordinate position, a signal is exported in this optical position detection unit again, to control this display pattern on this display screen, produces an action.

20. position detecting apparatus as claimed in claim 19 is characterized in that, comprises that again a signal analysis unit detects this position of this at least one touching pointer with minimum distance analytical approach in the motion process.

21. optical position detection device as claimed in claim 19 is characterized in that, this virtual contact panel comprises:

(1) by a zone of the tetragonal pattern of projection on this panel, (2) by at least two dot patterns of projection on this panel, zone that is defined with directivity, (3) by the pattern with directivity of projection on this panel, according to the zone that a relative position of this pattern defines, three's one.

22. optical position detection device as claimed in claim 19 is characterized in that, this virtual contact panel comprises:

(1) for this optical position detection device, a zone that is defined with a relative position, (2) with respect to this optical position detection device, by a removable and directive object, this object contains a zone of lid, (3) by this optical position detection device and the removable and directive calibration object on this panel, a zone of using a relative position therebetween to be defined, three's one.

23. one kind has the optical position detection device, it is characterized in that, this device comprises:

One contact surface plate;

At least one touching pointer;

At least one image capture unit can absorb this contact surface plate and this at least one touching pointer;

One control module;

One light source, has a color of light kenel, selectivity comprises that one has a smooth kenel of alternately sending different colours continuously, one direction of this light source irradiation has an angle with the deviation of directivity that this at least one image capture unit is absorbed, so this image capture unit can directly not detect the reflected light of this light source irradiation to this contact surface plate, and when this at least one touching pointer touches this light source, can produce a reflected light with this light kenel, wherein this image capture unit detects by this reflected light, and exports a signal; And

One control module, in order to receive this signal of this image capture unit output, this reflected light of identification by analysis, and analyze a touch position,

Wherein this optical position detection device optionally in an actual starting stage of using, absorbs image background data, stores these image background data in this control module, analyzes comparing data as one.

24. position detecting apparatus as claimed in claim 23 is characterized in that, this light source has a specific flicker frequency.

25. position detecting apparatus as claimed in claim 23 is characterized in that, a position of this at least one image capture unit is at least one plane that enables to absorb parallel this contact surface plate.

26. a position detecting apparatus is applicable to a panel, it is characterized in that, this device comprises:

At least one touching pointer wherein this at least one touching pointer has a tip, and there is a color pattern different with this panel at this tip, and to touch this panel, this at least one touching pointer and this panel have one to use limited angular;

At least two image capture unit, be positioned at a place of this device individually, its of this at least two this image capture unit one side shape image capture unit at least wherein, absorb this panel of plane of being detected with a rake angle, wherein this has many lines and many alignments in one side shape image capture unit at least, intersects to constitute a coordinate surface, in order to absorb at least one plane of this panel, and this at least one touching pointer tip of picked-up, and export at least one first video data;

One signal analysis unit receives this at least one first video data, analyzing position, the most approaching place, and determines this touch position at this at least one touching pointer tip, and wherein this position, the most approaching place is by being determined with next principle,

Image analysis method with three-dimensional, analyze those video datas, wherein when this touching pen travel is touched this panel, this tip of this at least one touching pointer have near this face shape image capture unit a bit, the position of this point is a reference position of this touch position or this touch position.

27. a kind of position detecting apparatus as claimed in claim 26 is characterized in that, this signal analysis unit is analyzed the three-dimensional position of this tip on this panel that obtains this at least one touching pointer.

28. a position detecting apparatus is applicable to a panel, it is characterized in that, this device comprises:

At least one touching pointer wherein this at least one touching pointer has a tip, and this tip is in order to touch this panel;

One luminescence component is arranged at this tip;

One touching button is arranged at this tip, and this touching button activates this luminescence component through touching and sends a light signal;

At least one image capture unit, be positioned at a place of this device individually, this at least one this image capture unit, absorb this panel of plane of being detected with a rake angle, this has many lines and many alignments in one side shape image capture unit at least, intersects to constitute a coordinate surface, in order to absorb at least one plane of this panel, and this light signal of this at least one touching pointer of picked-up, and export a video data; And

One signal analysis unit receives this video data, with analyze this assembly a bit, and determine this at least one touching pointer in a touch position of this panel.

29. position detecting apparatus as claimed in claim 28, it is characterized in that, in this signal analysis unit, this point in this luminescence component zone is the position, the most approaching place apart from this at least one image capture unit, in order to determine this touch position of this at least one touching pointer, wherein this position, the most approaching place is by being determined with next principle:

When this video data of graphical analysis, when this touching pointer is touched this panel, this luminescence component has a plurality of detecting luminous points to be detected, and those detecting luminous points wherein be decided to be this point with the immediate one in this face shape image capture unit detecting luminous point, its position is this touching pointer tip and touches a reference position in positions of panels.

30. position detecting apparatus as claimed in claim 28 is characterized in that, with the position analysis of optimum sensitivity, and determines this at least one touching pointer in a touch position of this panel.

31. a position detecting apparatus is characterized in that, this device comprises:

One contact surface plate has a color;

Touch pointer on the other hand, have a color;

At least one touching pointer wherein this at least one touching pointer has a tip, and there is the color of setting with this contact surface plate and hand touching pointer different colours at this tip;

At least two coloured image picked-up unit, be positioned at a place of this device individually, this at least one this image capture unit, absorb this panel of plane of being detected with a rake angle, this has many lines and many alignments in one side shape image capture unit at least, intersects to constitute a coordinate surface, in order to absorb at least one plane of this panel, and this at least one touching pointer of picked-up and this contact surface plate and this hand touching pointer, and export a video data;

One analytic unit receives and analyzes this at least two coloured image picked-up these video datas that the unit absorbed, and the analysis showed that this at least one touching pointer and this hand touching pointer is in a plurality of touch position of this contact surface plate.

32. a position detecting apparatus is characterized in that, this device comprises:

One contact surface plate has a color;

One mouse operates in an operation planar of this contact surface plate;

One pointer structure is positioned on this mouse, and this pointer structure has a setting pattern to be used for identification;

At least one image capture unit, be positioned at a place of this device individually, to absorb this operation planar and this mouse of this panel of being detected, wherein this at least one image capture unit has many lines and many alignments, intersect and constitute a coordinate surface, in order to absorb at least one plane of this panel, reach the position of this pointer structure on this panel of this mouse of picked-up, and export a video data; And

One analytic unit receives this video data, the analysis showed that this pointer structure this position on this panel of this mouse.

33. the contact surface plate device with optical position detection is characterized in that, this device comprises:

One contact surface plate;

At least one touching pointer, this at least one touching pointer sends light sources of different colors;

There is the photoinduction unit of different colours at least two image capture unit, are positioned at two positions of this frame, to absorb this touching pointer; And

One analytic unit receives and analyzes the data that this at least two image captures unit is absorbed, and with the position analysis of optimum sensitivity, the analysis showed that the position of this touching pointer touching.

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