CN1445651A - Touch screen device capable of sensing optical positions - Google Patents
Touch screen device capable of sensing optical positions Download PDFInfo
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- CN1445651A CN1445651A CN 02107481 CN02107481A CN1445651A CN 1445651 A CN1445651 A CN 1445651A CN 02107481 CN02107481 CN 02107481 CN 02107481 A CN02107481 A CN 02107481A CN 1445651 A CN1445651 A CN 1445651A
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Abstract
A touch panel device (it may be a LC screen or a display screen) with optical position detection is composed of at least one image pick-up unit for taking the panel surface and one touch pointer (pen or finger) on the surface and outputting a video signal, and a signal analysis unit for receiving the said video signal and analyzing the position of the said touch pointer on the panel surface.
Description
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 the development of semiconductor technology, computing machine science and technology and photoelectric technology, intelligent information makes things convenient for masses to obtain information especially, and then is controlled, and carries out some actions.
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 sees through function square or the 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 illustrates the design concept of known optical detecting contact surface plate, on a panel 100.This position detecting apparatus comprises at least two image capturing unit 106, is connected with a signal analysis unit 90.Image capturing 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, with an artificial light sources 104 irradiation detecting panels tops.The image capturing 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 electric signal and export a vision signal.Analytic unit 90 receives this vision signal, 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 also disclose the contact surface plate of general optical profile type.
Though the contact surface plate image capturing of general optical profile type has a detecting maximum height limit, yet light source on every side changes, time shadow, irradiating angle, side oblique illumination frame inject the light source of camera lens, when the light source irradiation frame is stronger than the light source of touching pointer, often cause erroneous judgement on every side.If design touching pointer itself has a light source, and be the only 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 present invention proposes the contact surface plate device of an optical position detection, and it can use the light source of natural light 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 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.
The present invention propose can an image capturing optical inductor the design of filter infrared ray, with under a visible light source with irradiation touching pointer, frame, camera lens picked-up frame image prevents the interference of invisible light on every side.
The present invention proposes under the application of an image capturing colorama inductor, frame with a setpoint color pattern, hand touching thing with a color, hand or style of writing with a setpoint color pattern bump thing, detect the position that proficiency or at least one style of writing bump, detect when coexisting with at least one pen on the other hand, this position of at least one, it can not need frame and detects the position that at least one setpoint color pattern style of writing bumps.For colored inductor, because detecting point needs the inductor of three colors, when sensitivity reduces because of using three colors, and increase the arrangement mode of optical inductor of another row solid color, or use the arrangement mode of the optical inductor of the parallel single different colours of triplex row, to improve the sensitivity of detecting.
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.
The present invention proposes a method, and preventing optical noise, improving sensitivity, and handwriting judges a position when touching simultaneously, installs at least three capturing apparatus in three corners.
One, removes at least one capturing apparatus that to detect obvious fine and closely woven striped of frame or setpoint color or a section of removing the capturing apparatus inductor that to detect obvious fine and closely woven striped of frame or setpoint color, select at least two capturing apparatus with the optical detecting touch action.
Two, the touching pointer is better near capturing apparatus position detecting resolution, the resolution rate variance of the mid line region one direction of two capturing apparatus, and at least three capturing apparatus can select the preferable at least two capturing apparatus action of resolution to improve sensitivity.
Three, to analyze the image of the touching thing that absorbs, judge that the image of removing a section is a background video, or the removal pen is covered the image of palm to judge the touching of pen by a palm, select at least two capturing apparatus with the optical detecting touch action: following method is with analysis and judgement: bumping thing with a style of writing has a pattern of setting, one style of writing bumps thing a size of setting, one finger touching thing has a rational size, touch thing on the other hand one setpoint color that uses last learning records color or user to import can be arranged, have with a touching thing that at least two capturing apparatus can detect on panel on the panel, with luminous and sparkling one frequency that a style of writing bumps thing, above analytical approach can comprehensively be used.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, elaborate.
Description of drawings
Fig. 1 illustrates a traditional optical position detection contact surface plate;
Fig. 2 illustrates according to a kind of optical position detection contact surface plate of the present invention;
Fig. 3 A-3D illustrates according to frame pattern structure of the present invention;
Fig. 4 A-4B illustrates according to the influence to frame pattern of touching pointer of the present invention and extraneous high light;
Fig. 5 A-5B illustrates according to black and white light sensing born of the same parents array of the present invention;
Fig. 6 illustrates the light source that uses visible light according to a kind of optical position detection contact surface plate of the present invention;
Fig. 7 A-7C figure illustrates according to colorama sensing born of the same parents array of the present invention;
Fig. 8 A-8B illustrates another design of frame of the present invention.Label declaration:
90 analytic units, 100,200 panels
102,202 frames, 104,204 light sources
106,206 cameras, 108,208 touching pointers
210 filter units, 212 light sensing born of the same parents
700 frames, 702,804 cameras
704 filter units, 706 touching pointers
710 monochromatic light inductors, 802 incandescent light source
Embodiment
Embodiment one
The present invention is characterized in to utilize picked-up image and image analysing computer mode, with the coordinate of detecting touch points on contact surface plate.Fig. 2 illustrates according to a kind of contact surface plate of the present invention.Contact surface plate comprises a panel 200.One frame 202 is arranged around the panel 200.Panel 200 can comprise a for example LCD panel.Image intake device 206 is positioned at a corner of panel 200, has a photoinduction born of the same parents array or a plurality of arrays shown in Fig. 7 A-7C, for example is again 640*4 point array, can absorb all scopes of panel 200 tops with an angle of 90 degrees degree.Another Image intake device 206 is positioned at another corner of panel 200, and its two Image intake 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 intake 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 illustrates the light source irradiation that is used in visible light according to a kind of optical position detection contact surface plate of the present invention.This moment is shown in Fig. 3 A-3D, 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, illustration 3B or color fringe, illustration 3C or one and the touching thing of setpoint color or with the single setpoint color frame of a finger different colours, illustration 3D, 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-3D.
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 of hand and at least one pen at least one of detecting when coexisting, the color of finger can change because of the people, can set the frame and a color that are different from the hand color, can cover blue border with hand, and color and frame are different with pen judges, 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-4B, 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 image data with it front bezel one candy strip photorecording store data, judge two image 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 intake 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 Fig. 3 A-3B 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 a plurality of inductor this moment, selects a plane of picked-up complex number plane 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-5B illustrates according to the present invention, black and white light sensing born of the same parents array.Light sensing born of the same parents 212 correspond to a detecting point.Corresponding to the high light section among Fig. 4 B, light sensing born of the same parents 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 born of the same parents array of colour, also applicable to ultrared light sensing born of the same parents array.
When background high light situation is serious, in the time of can't reaching with the adjustment magnification, can change the detecting mode.At this moment, touching pointer high light shines in the back, and relatively the touching pointer that observes of the high light of background is a black object, and the pattern color of frame can not identification, becomes a bright areas.The brightness that detects a section frame this moment surpasses one limits the quantity of, and changes identification mechanism, and this section replaces it to detect black object.This operator scheme abbreviates a black object detecting pattern again as, should touch that pointer is considered as a black pointer and this section frame is white.
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, the penetrable pen of crossing of then strong incandescent light source 802 radiance, 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, when the touching switch activator, be considered as a touching, 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-3D that sets to be recognized as at least one touching thing with the photographic image 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, utilize the design concept with above-mentioned pen, 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, irradiation block diagram case is on one side reflected.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 portion 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, and camera is an infrared inductor, and frame is black and white stripe design.
Embodiment 2
The present invention proposes to cooperate the structure of the optical inductor of running again.Optical inductor for example can by one or many photoinduction born of the same parents arrays constitute.Fig. 7 A is by R, the photoinduction born of the same parents array that G, the inductor born of the same parents of B are formed.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, can to install filtering part visible light be R to optical inductor 710, G, the monochromatic light inductor one of among the B or infrared ray cmos inductor 633 points of filtering visible light are with R, G, an about position of color mode detecting setpoint color pen or hand was to prevent erroneous judgement divided by 3 in 633 o'clock for the B optical inductor.With R, G, a monochromatic light inductor 710 633 points among the B are 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 again, detects the accuracy that so can improve a position detecting, an about position of also colored detecting hand simultaneously with an infrared light sensor location detecting or with the monochromatic light inductor of one of redness.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 a plurality of parallel lines, and it is a plurality of 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.
Above-mentioned, the design of frame pattern cooperates the design of optical inductor, and it can carry out composite design according to the environment of actual desire use.
In sum; though the present invention with a preferred embodiment openly as above; right its is not in order to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention defines and is as the criterion when looking claims.
Claims (30)
1, a kind of contact surface plate device with optical position detection is characterized in that: comprising:
One contact surface plate;
At least one touching pointer;
One frame has one and sets pattern around this contact surface plate;
At least two image capturing unit are positioned at two positions of this frame, with this touching pointer and this frame on the picked-up contact surface plate;
One analytic unit receives and analyzes the data that this at least two image capturings unit is absorbed, and 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: wherein this setting pattern of this frame comprises the alternate striped of a solid color depth, one colored alternate striped, one a plurality of and stripeds of different colours parallel with this contact surface plate, one a plurality of and stripeds of shade parallel with this contact surface plate are with a single setpoint color one.
3, the contact surface plate device with optical position detection as claimed in claim 1, it is characterized in that: wherein 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 capturings 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: wherein this at least two image capturings unit comprises at least two visible images picked-up unit.
5, the contact surface plate device with optical position detection as claimed in claim 4 is characterized in that: comprise at least two infrared filters again, before this at least two visible images picked-up unit that is placed in individually, to reduce the ultrared intensity of an environment.
6, the contact surface plate device with optical position detection as claimed in claim 4, it is characterized in that: wherein each this at least two visible images picked-up unit comprises a light sensing born of the same parents array, and this light sensing born of the same parents array can comprise at least one section, and the one magnification can be set and be different from other section.
7, the contact surface plate device with optical position detection as claimed in claim 4 is characterized in that: wherein this at least two visible images picked-up unit comprises three image capturing unit, according to its operative scenario, chooses wherein two usefulness with detecting.
8, the contact surface plate device with optical position detection as claimed in claim 4 is characterized in that: wherein each this at least two visible images picked-up unit comprises parallel a plurality of the light sensing born of the same parents array of different colours, combines.
9, the contact surface plate device with optical position detection as claimed in claim 4 is characterized in that: wherein each this at least two visible images picked-up unit comprises a light sensing born of the same parents array, and it is by the sensing born of the same parents of a plurality of different colours, alternate combining.
10, the contact surface plate device with optical position detection as claimed in claim 1, it is characterized in that: wherein this frame is the material of a color light-permeable, comprise a complete light-permeable zone, comprise a plurality of light tight zones, and a plurality of light-permeables zone, alternate combining, the two one.
11, the contact surface plate device with optical position detection as claimed in claim 10 is characterized in that: wherein those light tight zones are dead color, and those transmission regions are light tone.
12, the contact surface plate device with optical position detection as claimed in claim 1, it is characterized in that: wherein this frame comprises at least one retroreflective regions, to increase the lightness of this setting pattern.
13, the contact surface plate device with optical position detection as claimed in claim 1 is characterized in that: wherein this image capturing unit comprises a light sensing born of the same parents array, and it comprises the light sensing born of the same parents array of solid color again.
14, the contact surface plate device with optical position detection as claimed in claim 1, it is characterized in that: wherein this image capturing unit comprises a light sensing born of the same parents array, it comprises article one optical inductor again, formed by a plurality of different colours sensing born of the same parents, an and second optical inductor, be made up of a plurality of solid color sensing born of the same parents, wherein these two optical inductors are detectd and are cooperatively interacted to increase the sensitive and accurate ability of this touching pointer of detecting.
15, the contact surface plate device with optical position detection as claimed in claim 1 is characterized in that: wherein when an environment high light disturbed, this contact surface plate device adopted a black object detecting pattern, should touch pointer and be considered as a black pointer.
16, the contact surface plate device with optical position detection as claimed in claim 1, it is characterized in that: wherein this touching pointer has a setting pattern to comprise the alternate striped of a solid color depth, one colored alternate striped, article one or two, the striped of parallel different colours, one a plurality of and stripeds of shade parallel with this contact surface plate are with a single setpoint color one.
17, the contact surface plate device with optical position detection as claimed in claim 16, it is characterized in that: wherein the touching pointer of this setting pattern is the material of a color light-permeable, comprise a complete light-permeable zone, comprise a plurality of light tight zones, and a plurality of light-permeables zone, alternate combining, the two one.
18, the contact surface plate device with optical position detection as claimed in claim 16 is characterized in that: wherein a section of the touching pointer of this setpoint color is a reflective mechanism.
19, the contact surface plate device with optical position detection as claimed in claim 1 is characterized in that: wherein this touching pointer is a finger, the alternative input of this finger one setpoint color.
20, a kind of contact surface plate device with optical position detection is characterized in that: comprising:
One contact surface plate;
At least one touching pointer;
One frame has one of adding lustre to property mechanism and sets patterning around this contact surface plate;
At least two image capturing unit are positioned at two positions of this frame, to absorb this setting patterning of this touching pointer and this frame;
One analytic unit receives and analyzes the data that this at least two image capturings unit is absorbed, and the analysis showed that the position of this touching pointer.
21, the contact surface plate device with optical position detection as claimed in claim 20, it is characterized in that: wherein 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, one a plurality of and stripeds of shade parallel with this contact surface plate are with a single setpoint color one.
22, the contact surface plate device with optical position detection as claimed in claim 21 is characterized in that: and this striped also can be used for a correction of this at least two image capturings unit, and this correction comprises a picked-up angularity correction.
23, the contact surface plate device with optical position detection as claimed in claim 20, it is characterized in that: wherein each this at least two visible images picked-up unit comprises a light sensing born of the same parents array, and this light sensing born of the same parents array can comprise a section, and the one magnification can be set and be different from other section.
24, the contact surface plate device with optical position detection as claimed in claim 20, it is characterized in that: wherein 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 a plurality of light tight zones, and a plurality of light-permeables zone, alternate combining, the two one.
One of 25, the contact surface plate device with optical position detection as claimed in claim 20 is characterized in that: this adding lustre to property mechanism wherein is the reflectivity mechanism of adding lustre to, reflecting background one light, and reflection contact surface plate itself sends a light, the two.
26, a kind of contact surface plate device with optical position detection is characterized in that: comprising:
One contact surface plate;
One touching pointer has one of adding lustre to property mechanism and sets patterning;
Selectivity (optional) frame has one and sets pattern;
At least two image capturing unit are positioned at two positions of this contact surface plate, to absorb this setting pattern of this touching pointer and this selectivity (optional) frame;
One analytic unit receives and analyzes the data that this at least two image capturings unit is absorbed, and the analysis showed that the position of this touching pointer.
27, the contact surface plate device with optical position detection as claimed in claim 26, it is characterized in that: wherein this setting patterning of this touching pointer 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, one a plurality of and stripeds of shade parallel with this contact surface plate are with a single setpoint color one.
28, the contact surface plate device with optical position detection as claimed in claim 26 is characterized in that: wherein this touching pointer setpoint frequency that can glimmer is luminous, wherein should touching pointer can be luminous, the two one.
29, a kind of contact surface plate device with optical position detection is characterized in that: comprising:
One contact surface plate;
Selectivity is touched pointer on the other hand, has a color, and this color alternative is input as a setpoint color;
At least one style of writing of selectivity bumps pointer, sets a color different with hand;
One frame has at least one color, and it is set and to touch pointer and this style of writing with this hand to bump pointer different;
At least two chromatic images absorb the unit, are positioned at two positions of this frame, to absorb this contact surface plate at least one plane, top and this frame and this at least one touching pointer;
One analytic unit receives and analyzes this at least two chromatic images picked-up data that the unit absorbed, and the analysis showed that at least one touch position.
30, the contact surface plate device with optical position detection as claimed in claim 29, it is characterized in that: wherein this hand touching pointer bumps pointer with at least one style of writing and can judge at least one touch position by the color analysis of picked-up, and wherein this hand is touched pointer and at least one style of writing and bumped pointer and can coexist and touch on this contact surface plate device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02107481 CN1445651A (en) | 2002-03-20 | 2002-03-20 | Touch screen device capable of sensing optical positions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02107481 CN1445651A (en) | 2002-03-20 | 2002-03-20 | Touch screen device capable of sensing optical positions |
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| CN1445651A true CN1445651A (en) | 2003-10-01 |
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| CN 02107481 Pending CN1445651A (en) | 2002-03-20 | 2002-03-20 | Touch screen device capable of sensing optical positions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033663A (en) * | 2010-09-30 | 2011-04-27 | 广东威创视讯科技股份有限公司 | Camera surface positioning system and pen color identification method |
| CN107765258A (en) * | 2016-08-22 | 2018-03-06 | 原相科技股份有限公司 | It can be used to judge the optical detection apparatus with reference to object or light source relative position |
| CN108876848A (en) * | 2017-05-12 | 2018-11-23 | 宏达国际电子股份有限公司 | Tracing system and its method for tracing |
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2002
- 2002-03-20 CN CN 02107481 patent/CN1445651A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033663A (en) * | 2010-09-30 | 2011-04-27 | 广东威创视讯科技股份有限公司 | Camera surface positioning system and pen color identification method |
| CN102033663B (en) * | 2010-09-30 | 2012-10-03 | 广东威创视讯科技股份有限公司 | Camera surface positioning system and pen color identification method |
| CN107765258A (en) * | 2016-08-22 | 2018-03-06 | 原相科技股份有限公司 | It can be used to judge the optical detection apparatus with reference to object or light source relative position |
| CN108876848A (en) * | 2017-05-12 | 2018-11-23 | 宏达国际电子股份有限公司 | Tracing system and its method for tracing |
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