CN101957691B - Optical touch control system and operating method thereof - Google Patents
Optical touch control system and operating method thereof Download PDFInfo
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- CN101957691B CN101957691B CN 200910160047 CN200910160047A CN101957691B CN 101957691 B CN101957691 B CN 101957691B CN 200910160047 CN200910160047 CN 200910160047 CN 200910160047 A CN200910160047 A CN 200910160047A CN 101957691 B CN101957691 B CN 101957691B
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Abstract
The invention provides an optical touch control system and an operating method thereof. The optical touch control system comprises a panel device and an optical touch control device. The panel device comprises a first position and a second position which are different. The optical touch control device comprises a light-emitting module, a light path adjusting module, a light-sensing module and a processing module, wherein the light-emitting module and the light-sensing module are respectively arranged in the first position and the second position, and the light-emitting module emits sensing light; the light path adjusting module reflects the sensing light so as to form reflected light; the light-sensing module receives the reflected light and produces a sensing result according to whether the light-sensing module receives the reflected light; and the processing module judges the position of a touch control point formed on the panel device according to the sensing result.
Description
Technical field
The present invention relates to contactor control device, be specifically related to a kind of optical touch-control device and face equipment can integrated to save usage space and to enlarge optical touch control system and the method for operating thereof of effective sensing region scope.
Background technology
Generally speaking, comparatively common touch-control device includes the types such as resistance type touch control device, capacitive touch device and optical touch-control device at present, sees through different detection principles and mode and carries out the detection of single or multiplex touch control point.In above-mentioned various dissimilar touch-control devices, optical touch-control device is owing to have the excellent characteristic of light transmission, become to be different from traditional resistance type touch control device and another common technology outside the capacitive touch device.
Please refer to Fig. 1, Fig. 1 shows traditional optical touch-control device and is arranged at side schematic view on the panel.As shown in Figure 1, traditional optical touch-control device 1 comprises optical transmitting set 12, optical receiver 14 and processor 16, wherein, optical transmitting set 12 and optical receiver 14 are arranged at respectively the different both sides on the face equipment 9, and processor 16 is connected to optical transmitting set 12 and optical receiver 14.After optical transmitting set 12 is launched sensor light, optical receiver 14 is namely in order to receive this sensor light, so that optical receiver 14 can't receive this sensor light, optical touch-control device 1 can be judged the position of this object formed touch point on face equipment 9 according to this if this sensor light is just stopped by an object.
Yet, as shown in Figure 1, because optical touch-control device 1 is not integrated with face equipment 9, and only be merely its optical transmitting set 12 and optical receiver 14 to be arranged on the face equipment 9, so will cause face equipment 9 additional space demands, for being particular about at present the compact electronic product of volume, really quite unfavorable.In addition, the traditional set-up mode of optical touch-control device 1 on face equipment 9 also causes its effective sensing region scope to be limited to.Therefore, the present invention proposes a kind of optical touch control system and method for operating thereof, to address the above problem.
Summary of the invention
The first specific embodiment according to the present invention is a kind of optical touch control system.In this embodiment, this optical touch control system comprises face equipment and optical touch-control device.This face equipment comprises different primary importance and the second place.This optical touch-control device comprises light emission module, light path adjusting module, optical sensing module and processing module, and wherein this light emission module and this optical sensing module are arranged at respectively on this primary importance and this second place.After this light emission module was launched sensor light, this light path adjusting module reflected to form reflected light to this sensor light.This optical sensing module receives this reflected light and whether receives this reflected light according to it and produces sensing result.This processing module is judged the touch point position that is formed on the face equipment according to sensing result.
In one embodiment of the invention, this light path adjusting module in optical touch control system comprises the light path adjustment unit, this light path adjustment unit is arranged at the first side top or the second side top of the first surface of this face equipment, this light path adjustment unit is corresponding to this primary importance or this second place, and forms this reflected light in order to this sensor light is reflected.
Preferably, this light path adjusting module comprises the first light path adjustment unit and the second light path adjustment unit, and this first light path adjustment unit and this second light path adjustment unit are arranged at respectively the first side top and the second side top of the first surface of this face equipment.
Preferably, this primary importance and this second place lay respectively at this first side and this second side, and correspond respectively to this first light path adjustment unit and this second light path adjustment unit.
Preferably, this light emission module this sensor light of launching will be formed the first reflected light by this corresponding the first light path adjustment unit reflection.
Preferably, if this first reflected light is passed to this second light path adjustment unit above this first surface, this first reflected light will be formed this reflected light by this second light path adjustment unit reflection.
In one embodiment of the invention, this primary importance in this optical touch control system and this second place lay respectively at the first depressed part of this first side and the second depressed part of this second side, and correspond respectively to this first light path adjustment unit and this second light path adjustment unit.
Preferably, this primary importance and this second place lay respectively at a side of this first surface and with respect to second opposite side of this first surface, this light path adjusting module further comprises the auxiliary optical path adjustment unit, this auxiliary optical path adjustment unit is arranged at the top of this this opposite side of second and corresponding to this second place, in order to reflect this reflected light to form auxiliary reflected light and to inject in this optical sensing module.
In one embodiment of the invention, in optical touch control system, this second place and this primary importance lay respectively at a side of this first surface and with respect to second opposite side of this first surface, this light path adjusting module also comprises the auxiliary optical path adjustment unit, this auxiliary optical path adjustment unit is arranged at the top of this this opposite side of second and corresponding to this primary importance, in order to reflect this sensor light that this light emission module launches to form auxiliary reflected light and to be incident upon this first light path adjustment unit.
In one embodiment of the invention, in optical touch control system, this primary importance and this second place lay respectively at the first side of second and the second side with respect to this first surface, this light path adjusting module further comprises the first auxiliary optical path adjustment unit and the second auxiliary optical path adjustment unit, this the first auxiliary optical path adjustment unit is arranged at above this this first side of second and corresponding to this primary importance, launch this sensor light to form the first auxiliary reflected light and to be incident upon this first light path adjustment unit in order to reflect this light emission module, this the second auxiliary optical path adjustment unit is arranged at above this this second side of second and corresponding to this second place, in order to reflect this reflected light to form the second auxiliary reflected light and to inject in this optical sensing module.
In one embodiment of the invention, this light emission module is the backlight of this face equipment, this backlight is arranged on outer or be arranged on and be different from outside this first surface and this second the side with respect to second of this first surface, this light path adjusting module further comprises at least one auxiliary optical path adjustment unit, this at least one auxiliary optical path adjustment unit in order to this incident light of reflecting this backlight and launching to form the first auxiliary reflected light and to be incident upon this first light path adjustment unit.
Preferably, this at least one auxiliary optical path adjustment unit is rotatable, when this at least one auxiliary optical path adjustment unit rotates to the first angle, this incident light that this backlight is launched can be by this at least one auxiliary optical path adjustment unit reflection, to inject this face equipment as backlight, when this at least one auxiliary optical path adjustment unit rotated to the second angle, this incident light that this backlight is launched just can be reflected to form this first auxiliary reflected light by this at least one auxiliary optical path adjustment unit.
In one embodiment of the invention, in optical touch control system, this face equipment comprises at least one liquid crystal cells, this at least one liquid crystal cells is rotatable, when directional light was injected this face equipment, this at least one liquid crystal cells was controlled this directional light by formed ejaculation light intensity behind this at least one liquid crystal cells by adjusting its deflection angle.
Preferably, when this ejaculation light penetrated outside this face equipment, this penetrates light also can be reflected to form the light distributed areas in this first surface top by this first light path adjustment unit or this second light path adjustment unit.
In one embodiment of the invention, in optical touch control system, this face equipment also is provided with the light path adjustment unit, and this light path adjustment unit is liquid crystal cell, electric pulse wet type element or electric driven color-changing part, so that the function that scans switching to be provided.
The second specific embodiment according to the present invention is a kind of optical touch control system method of operating.In this embodiment, this optical touch control system comprises face equipment and optical touch-control device, this face equipment comprises different primary importance and the second place, this optical touch-control device comprises light emission module, light path adjusting module, optical sensing module and processing module, and this light emission module and this optical sensing module are arranged at respectively this primary importance and this second place.The method comprises the following step: (a) this light emission module is launched sensor light; (b) this light path adjusting module reflects to form reflected light to this sensor light; (c) this optical sensing module receives this reflected light and whether receives this reflected light according to it and produces sensing result; (d) this processing module is judged the touch point position that is formed on the face equipment according to this sensing result.
In one embodiment of the invention, in described method, this light path adjusting module comprises the light path adjustment unit, this light path adjustment unit is arranged at the first side top or the second side top of the first surface of this face equipment, this light path adjustment unit is corresponding to this primary importance or this second place, and forms this reflected light in order to this sensor light is reflected.
In one embodiment of the invention, in described method, this light path adjusting module comprises the first light path adjustment unit and the second light path adjustment unit, and this first light path adjustment unit and this second light path adjustment unit are arranged at respectively the first side top and the second side top of the first surface of this face equipment.
Preferably, this primary importance and this second place lay respectively at this first side and this second side, and correspond respectively to this first light path adjustment unit and this second light path adjustment unit, this sensor light that this light emission module is launched will be formed the first reflected light by this corresponding the first light path adjustment unit reflection, if this first reflected light is passed to this second light path adjustment unit above this first surface, this first reflected light will be formed this reflected light by this second light path adjustment unit reflection.
Preferably, this primary importance and this second place lay respectively at a side of this first surface and with respect to second opposite side of this first surface, this light path adjusting module further comprises the auxiliary optical path adjustment unit, this auxiliary optical path adjustment unit is arranged at above this this opposite side of second and corresponding to this second place, in order to reflect this reflected light to form auxiliary reflected light and to inject in this optical sensing module.
Preferably, this second place and this primary importance lay respectively at a side of this first surface and with respect to second opposite side of this first surface, this light path adjusting module further comprises the auxiliary optical path adjustment unit, this auxiliary optical path adjustment unit is arranged at this this opposite side of second top and corresponding to this primary importance, in order to reflect this sensor light that this light emission module launches to form auxiliary reflected light and to be incident upon this first light path adjustment unit.
Preferably, this primary importance and this second place lay respectively at relatively the first side of second and second side of this first surface, this light path adjusting module further comprises the first auxiliary optical path adjustment unit and the second auxiliary optical path adjustment unit, this the first auxiliary optical path adjustment unit is arranged at above this this first side of second and corresponding to this primary importance, in order to reflect this sensor light that this light emission module launches to form the first auxiliary reflected light and to be incident upon this first light path adjustment unit, this the second auxiliary optical path adjustment unit is arranged at above this this second side of second and corresponding to this second place, in order to reflect this reflected light to form the second auxiliary reflected light and to inject in this optical sensing module.
Preferably, this light emission module is the backlight of this face equipment, this backlight is arranged on outer or be arranged on and be different from outside this first surface and this second the side with respect to second of this first surface, this light path adjusting module further comprises at least one auxiliary optical path adjustment unit, this at least one auxiliary optical path adjustment unit in order to this incident light of reflecting this backlight and launching to form the first auxiliary reflected light and to be incident upon this first light path adjustment unit.
Preferably, this at least one auxiliary optical path adjustment unit is rotatable, when this at least one auxiliary optical path adjustment unit rotates to the first angle, this incident light that this backlight is launched can be by this at least one auxiliary optical path adjustment unit reflection, to inject this face equipment as backlight, when this at least one auxiliary optical path adjustment unit rotated to the second angle, this incident light that this backlight is launched just can be reflected to form this first auxiliary reflected light by this at least one auxiliary optical path adjustment unit.
In one embodiment of the invention, in described method, this face equipment also is provided with the light path adjustment unit, and this light path adjustment unit is liquid crystal cell, electric pulse wet type element or electric driven color-changing part, so that the function that scans switching to be provided.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 shows traditional optical formula contactor control device and is arranged at the panel side schematic view.
Fig. 2 and Fig. 3 show respectively according to the functional block diagram of the optical touch control system of the first specific embodiment of the present invention and synoptic diagram.
Fig. 4 (A) and (B) show respectively the synoptic diagram that the light path adjustment unit is arranged at the top on the left side of upper surface and right side; Fig. 4 (C) shows the synoptic diagram that the first reflected light is blocked by object in being passed to the second light path adjustment unit way.
Fig. 5 shows the synoptic diagram in the light emission module of optical touch control system and the depressed part that optical sensing module is arranged at face equipment.
Fig. 6 shows the light emission module of optical touch control system and the synoptic diagram that optical sensing module is arranged at respectively the different surfaces of face equipment.
Fig. 7 shows optical touch control system and sees through the first auxiliary optical path adjustment unit different rotation angle scans pattern to switch difference synoptic diagram.
Fig. 8 shows optical touch control system and adopts the lateral light source emitter of face equipment as the synoptic diagram of light emission module.
Fig. 9 shows the example that optical touch control system comprises the light path adjustment unit of other type with difference in functionality.
Figure 10 shows the process flow diagram according to the optical touch control system method of operating of the second specific embodiment of the present invention.
Embodiment
The first specific embodiment according to the present invention is a kind of optical touch control system.Please refer to Fig. 2 and Fig. 3, Fig. 2 and Fig. 3 show respectively function block diagram and the synoptic diagram of this optical touch control system.As shown in Figures 2 and 3, optical touch control system 2 comprises face equipment 20 and optical touch-control device 22.Wherein, face equipment 20 comprises different primary importance P1 and second place P2; Optical touch-control device 22 comprises light emission module 220, light path adjusting module 222, optical sensing module 224 and processing module 226.Light emission module 220 and optical sensing module 224 are arranged at respectively primary importance P1 and second place P2.In fact, the number of light emission module 220 and optical sensing module 224 is not subjected to certain restriction.
As shown in Figure 3, light path adjusting module 222 comprises the first light path adjustment unit 2220 and the second light path adjustment unit 2222; The second place P2 of the primary importance P1 of light emission module 220 and optical sensing module 224 lays respectively at the left and right sides of the upper surface of face equipment 20; The first light path adjustment unit 2220 and the second light path adjustment unit 2222 are arranged at respectively the top of the left and right sides of this upper surface, and namely the first light path adjustment unit 2220 and the second light path adjustment unit 2222 are respectively with respect to light emission module 220 and optical sensing module 224.In this embodiment, the sensor light L that launches of light emission module 220
1Will be formed the first reflected light L by corresponding the first light path adjustment unit 2220 reflections
2The first reflected light L
2Will transmit and formation light distributed areas in this first surface top.As shown in Figure 3, owing to there is not any object above this first surface, to stop the first reflected light L
2Advance, so the first reflected light L
2Will be incident upon the second light path adjustment unit 2222.Then, the first reflected light L
2Will be formed the second reflected light L by 2222 reflections of the second light path adjustment unit
3And be incident upon optical sensing module 224.
In fact, the number of the light path adjustment unit that light path adjusting module 222 comprises and position are looked closely actual needs and are decided, and are not limited with this example.For example, shown in Fig. 4 (A), light path adjusting module 222 also can only comprise single light path adjustment unit 2220 ', the top, left side of the upper surface of light path adjustment unit 2220 ' be arranged at face equipment 20, that is light path adjustment unit 2220 ' with respect to light emission module 220, since the equal capable of regulating of angle and position of light path adjustment unit 2220 ' setting, so in this embodiment, light path adjustment unit 2220 ' can be with the sensor light L of light emission module 220 emissions
1Be reflected into reflected light L
2And directly be incident upon optical sensing module 224.Then show as for Fig. 4 (B) light path adjustment unit 2222 ' be arranged at face equipment 20 upper surface the top, right side and with respect to the synoptic diagram of optical sensing module 224, light path adjustment unit 2222 ' also can be with sensor light L
1Be reflected into reflected light L
2And directly be incident upon optical sensing module 224.It should be noted that sensor light L
1Not necessarily being launched by light emission module, also can be any light that comes from the outside, and there is no specific restriction.Shown in Fig. 4 (C), if the first reflected light L among Fig. 3
2Above upper surface, be passed to the second light path adjustment unit 2222 and stopped by object O on the way, because the first reflected light L
2Can't be by 2222 reflections of the second light path adjustment unit, so optical sensing module 224 can't receive the second reflected light L
3Thus, whether optical sensing module 224 can receive the second reflected light L according to it
3Produce sensing result.
Please refer to Fig. 5, Fig. 5 shows the synoptic diagram in the light emission module of optical touch control system and the depressed part that optical sensing module is arranged at face equipment.As shown in Figure 5, the left and right sides of the upper surface of face equipment 50 is respectively arranged with the first depressed part and the second depressed part, light emission module 520 set primary importance P1 and optical sensing module 524 set second place P2 lay respectively in the first depressed part and the second depressed part, further to reach the purpose of saving 5 usage spaces of whole optical touch control system.It should be noted that because light emission module 520 emission sensor light L
1Perpendicular direction in this upper surface, form the first reflected light L through 5220 reflections of corresponding the first light path adjustment unit
2And after being incident upon the second light path adjustment unit 5222, the second light path adjustment unit 5222 reflects the first reflected light L again
2And form the second reflected light L
3And be incident upon optical sensing module 524.Therefore, by the set-up mode of optical touch control system 5, no matter be the sensor light L that light emission module 520 is launched
1, the first reflected light L of reflecting of the first light path adjustment unit 5220
2Or second the second reflected light L that reflects of light path adjustment unit 5222
3, all can not blocked by face equipment 50.Moreover optical touch control system 5 has significantly reduced its whole space and volume that uses than prior art, reaches thus more compact purpose.
Please refer to Fig. 6, Fig. 6 shows the light emission module of optical touch control system and the synoptic diagram that optical sensing module is arranged at respectively the different surfaces of face equipment.As shown in Figure 6, in optical touch control system 6, the primary importance P1 of light emission module 620 is positioned at the left side of the lower surface of face equipment 60, and the second place P2 of optical sensing module 624 then is positioned at the right side recess of the upper surface of face equipment 60.In this example, the light emission module 620 that is positioned at face equipment 60 lower surfaces is launched sensor light L downwards
1, and sequentially be reflected into the first auxiliary reflected light L through the first auxiliary optical path adjustment unit 6226
A1And second auxiliary optical path adjustment unit 6224 be reflected into the second auxiliary reflected light L
A2After, the second auxiliary reflected light L
A2Will be incident upon the first light path adjustment unit 6220.Then, the first light path adjustment unit 6220 is again with the second auxiliary reflected light L
A2Be reflected into the first reflected light L
2And be incident upon the second light path adjustment unit 6222.At last, the second light path adjustment unit 6222 is with the first reflected light L
2Be reflected into the second reflected light L
3And be incident upon optical sensing module 624.In addition, the light emission module of optical touch control system and optical sensing module also can be arranged at respectively the left and right sides of face equipment lower surface, do not give unnecessary details separately at this.
Please refer to Fig. 7, Fig. 7 shows optical touch control system scans the synoptic diagram of pattern to switch difference by the first auxiliary optical path adjustment unit different rotation angle synoptic diagram.As shown in Figure 7, in optical touch control system 7, the backlight emitter 720a～720c of face equipment 70 is arranged at the outside of the lower surface of face equipment 70, required backlight when face equipment 70 display frame to be provided.In this embodiment, backlight emitter 720b and 720c are in normal backlight emission state, launch respectively incident light L
T1And L
T2And inject in the face equipment 70.The incident light L that launches to face equipment 70 as for backlight emitter 720a
4, then can before injecting face equipment 70, be reflected into the first auxiliary reflected light L by the first auxiliary optical path adjustment unit 7224
A1Then, the first auxiliary reflected light L
A1Be reflected into the second auxiliary reflected light L by the second auxiliary optical path adjustment unit 7226 again
A2And be incident upon the first light path adjustment unit 7220.Afterwards, sequentially be reflected into L through the first light path adjustment unit 7220
2And the second light path adjustment unit 7222 is reflected into reflected light L
3After, reflected light L
3Inject optical sensing module 724.Thus, optical touch control system 7 can be integrated the backlight emitter of script face equipment 70 effectively as the light source emitter of touch-control interpretation, so can save cost and the space that light source emitter additionally is set.
In addition, because the first auxiliary optical path adjustment unit 7224 is rotatable, so work as the incident light L that backlight emitter 720a launches
4System is during as the purposes of optical touch control interpretation, and the first auxiliary optical path adjustment unit 7224 will stop incident light L
4Advance route and to incident light L
4Reflect; The incident light L that launches as backlight emitter 720a
4During as the backlight purposes of face equipment 70, the first auxiliary optical path adjustment unit 7224 namely can rotate a special angle and can not stop incident light L
4Be incident upon in the face equipment 70.Thus, optical touch control system 7 can be by changing the anglec of rotation of the first auxiliary optical path adjustment unit 7224, the emitted incident light L of control backlight emitter 720a
4As the backlight of face equipment 70 or as the switching of the light source of optical touch control interpretation.
It should be noted that, face equipment 70 comprises a plurality of liquid crystal cells usually, when the directional light of launching when the backlight of face equipment 70 is injected face equipment 70, because these liquid crystal cells are rotatable, so liquid crystal cells will be controlled directional light by formed ejaculation light intensity size behind the liquid crystal cells by adjusting its deflection angle, for example interdict (unglazed) fully, all pass through (low light level) texts by (high light) or part, thus so that face equipment 70 can provide different display effects.Therefore, the liquid crystal cells of face equipment 70 also can provide the handoff functionality of the first auxiliary optical path adjustment unit 7224 among similar Fig. 7, namely can switch the emitted incident light L of backlight emitter 720a by the anglec of rotation of control liquid crystal cells
4As the backlight of face equipment 70 or as the light source of optical touch control interpretation.Thus, optical touch control system 7 can save cost and the space that the auxiliary optical path adjustment unit additionally is set by the liquid crystal cells of integrating face equipment 70.In addition, if incident light is not directional light, face equipment 70 also can comprise the polarisation unit, and this polarisation unit is in order to being adjusted into incident light directional light being incident upon those liquid crystal cells, but not as limit.
Please refer to Fig. 8, Fig. 8 shows optical touch control system and adopts the lateral light source emitter of face equipment as the synoptic diagram of light emission module.As shown in Figure 8, in optical touch control system 8, be arranged at the sensor light L that the lateral light source emitter 820 outside face equipment 80 left sides penetrates to the right
1Be reflected into auxiliary reflected light L through the first auxiliary optical path adjustment unit 8224
aAfter, will be incident upon the first light path adjustment unit 8220.Afterwards, auxiliary reflected light L
aBe reflected into the first reflected light L through the first light path adjustment unit 8220 first
2After, be reflected into the second reflected light L through the second light path adjustment unit 8222 again
3After, the second reflected light L
3Inject optical sensing module 824.
Please refer to Fig. 9, Fig. 9 shows the example that optical touch control system adopts the light path adjustment unit of other type.As shown in Figure 9, the face equipment 90 of optical touch control system 9 also is provided with the light path adjustment unit 940 and 942 with other function in addition except being provided with as the first light path adjustment unit 9220 and the second light path adjustment unit 9222 with reflection function in above-mentioned each example.For example, light path adjustment unit 940 (or 942) can be liquid crystal cells, liquid crystal cells can be controlled directional light by formed ejaculation light intensity size behind the liquid crystal cells by adjusting its deflection angle, for example interdict (unglazed) fully, all pass through (low light level) texts by (high light) or part, to reach the effect that scans switching.In addition, light path adjustment unit 940 (or 942) also can be that electric pulse wet type (electro-wetting) element, electrochromism (electro-chromic) element or other are any can provide the similar element that scans handoff functionality, is not subjected to certain restriction.Be arranged at position visual actual needs and adjusting also in the optical touch control system 9 as for light path adjustment unit 940 (or 942), be not limited with this example.It should be noted that above-mentioned various forms of optical touch control system has different set-up modes and position, only is preferred specific embodiment of the present invention, in fact still has other set-up mode and position, is not limited with above-mentioned example.
The second specific embodiment according to the present invention is a kind of optical touch control system method of operating.In this embodiment, this optical touch control system comprises face equipment and optical touch-control device, this face equipment comprises different primary importance and the second place, this optical touch-control device comprises light emission module, light path adjusting module, optical sensing module and processing module, and this light emission module and this optical sensing module are arranged at respectively this primary importance and this second place.Please refer to Figure 10, Figure 10 shows the process flow diagram of this optical touch control system method of operating.As shown in figure 10, at first, in step S10, this light emission module is launched sensor light.Then, in step S12, this light path adjusting module reflects to form reflected light to this sensor light.In this embodiment, this light path adjusting module comprises the first light path adjustment unit and the second light path adjustment unit, and this first light path adjustment unit and this second light path adjustment unit are arranged at respectively the top of the first side of first surface of this face equipment and the top of the second side.
In fact, this primary importance and this second place can lay respectively at this first side and this second side, and respectively to should the first light path adjustment unit and this second light path adjustment unit, therefore, this sensor light that this light emission module is launched can be formed the first reflected light by this corresponding the first light path adjustment unit reflection first, then, when this first reflected light is passed to this second light path adjustment unit above this first surface, formed this reflected light by this second light path adjustment unit reflection again, but not as limit.For example, the light path adjusting module also can only comprise single light path adjustment unit, this light path adjustment unit can be arranged on top, left side or the top, right side of this upper surface, that is this light path adjustment unit can with respect to light emission module or optical sensing module, be reflected into this reflected light in order to the sensor light with the light emission module emission.In addition, this primary importance and this second place also can lay respectively at the first depressed part of this first side and the second depressed part of this second side, and correspond respectively to this first light path adjustment unit and this second light path adjustment unit.Then, in step S14, this optical sensing module receives this reflected light and whether receives this reflected light according to it and produces sensing result.At last, in step S16, this processing module is judged the touch point position that is formed on this face equipment according to this sensing result.
Than prior art, can properly integrate optical touch-control device and face equipment with the usage space of saving whole optical touch control system and enlarge its effective sensing region scope according to optical touch control system of the present invention and method of operating thereof.In addition, this optical touch control system does not need to be provided with drive unit as prior art, can reach by the liquid crystal cells of light path adjustment unit or face equipment the effect that the pattern that scans is switched.
By the detailed description of above preferred specific embodiment, hope can be known description feature of the present invention and spirit more, and is not to come protection scope of the present invention is limited with above-mentioned disclosed preferred specific embodiment.On the contrary, its objective is and wish in the protection domain of the claim of institute of the present invention wish application, to contain various changes and to be equal to substitute mode.
The primary clustering symbol description
S10～S16: process step 12: optical transmitting set
1,22,52,62: optical touch-control device L
4: incident light
14: optical receiver 16: processor
9,20,50,60,70,80,90: face equipment
2,5～9: optical touch control system 222: the light path adjusting module
P1: primary importance P2: the second place
8224: auxiliary optical path adjustment unit 226: processing module
820: lateral light source emitter L
1: sensor light
720a～720c: backlight emitter L
2: the first reflected light
O: object L
3: the second reflected light
L
A1: the first auxiliary reflected light L
A2: the second auxiliary reflected light
L
A3: the 3rd auxiliary reflected light L
A4: the 4th auxiliary reflected light
L
T1, L
T2: L backlight
a: auxiliary reflected light
940,942,2220 ', 2222 ': the light path adjustment unit
220,520,620,720: light emission module
224,524,624,724,824: optical sensing module
2220,5220,6220,7220,8220,9220: the first light path adjustment units
2222,5222,6222,7222,8222,9222: the second light path adjustment units
6226,7226: the first auxiliary optical path adjustment units
6224,7224: the second auxiliary optical path adjustment units.
Claims (24)
1. optical touch control system comprises:
Face equipment comprises different primary importance and the second place; And
Optical touch-control device comprises:
Light emission module is arranged on the described primary importance, in order to launch sensor light;
The light path adjusting module is in order to reflect to form reflected light to described sensor light;
Optical sensing module is arranged on the described second place, produces sensing result in order to receive described reflected light and whether to receive described reflected light according to it; And
Processing module is connected to described optical sensing module, in order to judging the touch point position that is formed on the described face equipment according to described sensing result,
Wherein said face equipment comprises at least one liquid crystal cells, described at least one liquid crystal cells is rotatable, when directional light is injected described face equipment, described at least one liquid crystal cells by adjust its deflection angle control described directional light by described at least one liquid crystal cells after formed ejaculation light intensity.
2. optical touch control system according to claim 1, wherein said light path adjusting module comprises the light path adjustment unit, described light path adjustment unit is arranged at the first side top or the second side top of the first surface of described face equipment, described light path adjustment unit is corresponding to described primary importance or the described second place, and forms described reflected light in order to described sensor light is reflected.
3. optical touch control system according to claim 1, wherein said light path adjusting module comprises the first light path adjustment unit and the second light path adjustment unit, and described the first light path adjustment unit and described the second light path adjustment unit are arranged at respectively the first side top and the second side top of the first surface of described face equipment.
4. optical touch control system according to claim 3, wherein said primary importance and the described second place lay respectively at described the first side and described the second side, and correspond respectively to described the first light path adjustment unit and described the second light path adjustment unit.
5. optical touch control system according to claim 4, the described sensor light that wherein said light emission module is launched will be formed the first reflected light by corresponding described the first light path adjustment unit reflection.
6. optical touch control system according to claim 5, if wherein described the first reflected light is passed to described the second light path adjustment unit above described first surface, described the first reflected light will be formed described reflected light by described the second light path adjustment unit reflection.
7. optical touch control system according to claim 3, wherein said primary importance and the described second place lay respectively at the first depressed part of described the first side and the second depressed part of described the second side, and correspond respectively to described the first light path adjustment unit and described the second light path adjustment unit.
8. optical touch control system according to claim 3, wherein said primary importance and the described second place lay respectively at a side of described first surface and with respect to second opposite side of described first surface, described light path adjusting module further comprises the auxiliary optical path adjustment unit, described auxiliary optical path adjustment unit is arranged at the top of described second described opposite side and corresponding to the described second place, in order to reflect described reflected light to form auxiliary reflected light and to inject in the described optical sensing module.
9. optical touch control system according to claim 3, the wherein said second place and described primary importance lay respectively at a side of described first surface and with respect to second opposite side of described first surface, described light path adjusting module also comprises the auxiliary optical path adjustment unit, described auxiliary optical path adjustment unit is arranged at the top of described second described opposite side and corresponding to described primary importance, in order to reflect described sensor light that described light emission module launches to form auxiliary reflected light and to be incident upon described the first light path adjustment unit.
10. optical touch control system according to claim 3, wherein said primary importance and the described second place lay respectively at the first side of second and the second side with respect to described first surface, described light path adjusting module further comprises the first auxiliary optical path adjustment unit and the second auxiliary optical path adjustment unit, described the first auxiliary optical path adjustment unit is arranged at above described second described the first side and corresponding to described primary importance, launch described sensor light to form the first auxiliary reflected light and to be incident upon described the first light path adjustment unit in order to reflect described light emission module, described the second auxiliary optical path adjustment unit is arranged at above described second described the second side and corresponding to the described second place, in order to reflect described reflected light to form the second auxiliary reflected light and to inject in the described optical sensing module.
11. optical touch control system according to claim 3, wherein said light emission module is the backlight of described face equipment, described backlight is arranged on outer or be arranged on and be different from outside described first surface and described second side with respect to second of described first surface, described light path adjusting module further comprises at least one auxiliary optical path adjustment unit, described at least one auxiliary optical path adjustment unit in order to the described incident light that reflects described backlight and launch to form the first auxiliary reflected light and to be incident upon described the first light path adjustment unit.
12. optical touch control system according to claim 11, wherein said at least one auxiliary optical path adjustment unit is rotatable, when described at least one auxiliary optical path adjustment unit rotates to the first angle, the described incident light that described backlight is launched can be by described at least one auxiliary optical path adjustment unit reflection, to inject described face equipment as backlight, when described at least one auxiliary optical path adjustment unit rotated to the second angle, the described incident light that described backlight is launched just can be reflected to form the described first auxiliary reflected light by described at least one auxiliary optical path adjustment unit.
13. optical touch control system according to claim 1, wherein when described ejaculation light penetrated outside the described face equipment, described ejaculation light also can be reflected to form the light distributed areas in described first surface top by described the first light path adjustment unit or described the second light path adjustment unit.
14. optical touch control system according to claim 1, wherein said face equipment also is provided with the light path adjustment unit, and described light path adjustment unit is liquid crystal cell, electric pulse wet type element or electric driven color-changing part, so that the function that scans switching to be provided.
15. the method for an operating optical formula touch-control system, described optical touch control system comprises face equipment and optical touch-control device, described face equipment comprises different primary importance and the second place, described optical touch-control device comprises light emission module, light path adjusting module, optical sensing module and processing module, described light emission module and described optical sensing module are arranged at respectively described primary importance and the described second place, and described method comprises the following step:
Described light emission module is launched sensor light;
Described light path adjusting module reflects to form reflected light to described sensor light;
Described optical sensing module receives described reflected light and whether receives described reflected light according to it and produces sensing result; And
Described processing module is judged the touch point position that is formed on the described face equipment according to described sensing result,
Wherein said face equipment comprises at least one liquid crystal cells, described at least one liquid crystal cells is rotatable, when directional light is injected described face equipment, described at least one liquid crystal cells by adjust its deflection angle control described directional light by described at least one liquid crystal cells after formed ejaculation light intensity.
16. method according to claim 15, wherein said light path adjusting module comprises the light path adjustment unit, described light path adjustment unit is arranged at the first side top or the second side top of the first surface of described face equipment, described light path adjustment unit is corresponding to described primary importance or the described second place, and forms described reflected light in order to described sensor light is reflected.
17. method according to claim 15, wherein said light path adjusting module comprises the first light path adjustment unit and the second light path adjustment unit, and described the first light path adjustment unit and described the second light path adjustment unit are arranged at respectively the first side top and the second side top of the first surface of described face equipment.
18. method according to claim 17, wherein said primary importance and the described second place lay respectively at described the first side and described the second side, and correspond respectively to described the first light path adjustment unit and described the second light path adjustment unit, the described sensor light that described light emission module is launched will be formed the first reflected light by corresponding described the first light path adjustment unit reflection, if described the first reflected light is passed to described the second light path adjustment unit above described first surface, described the first reflected light will be formed described reflected light by described the second light path adjustment unit reflection.
19. method according to claim 17, wherein said primary importance and the described second place lay respectively at a side of described first surface and with respect to second opposite side of described first surface, described light path adjusting module further comprises the auxiliary optical path adjustment unit, described auxiliary optical path adjustment unit is arranged at above described second the described opposite side and corresponding to the described second place, in order to reflect described reflected light to form auxiliary reflected light and to inject in the described optical sensing module.
20. method according to claim 17, the wherein said second place and described primary importance lay respectively at a side of described first surface and with respect to second opposite side of described first surface, described light path adjusting module further comprises the auxiliary optical path adjustment unit, described auxiliary optical path adjustment unit is arranged at described second described opposite side top and corresponding to described primary importance, in order to reflect described sensor light that described light emission module launches to form auxiliary reflected light and to be incident upon described the first light path adjustment unit.
21. method according to claim 17, wherein said primary importance and the described second place lay respectively at the first side of second and second side of relatively described first surface, described light path adjusting module further comprises the first auxiliary optical path adjustment unit and the second auxiliary optical path adjustment unit, described the first auxiliary optical path adjustment unit is arranged at above described second described the first side and corresponding to described primary importance, in order to reflect described sensor light that described light emission module launches to form the first auxiliary reflected light and to be incident upon described the first light path adjustment unit, described the second auxiliary optical path adjustment unit is arranged at above described second described the second side and corresponding to the described second place, in order to reflect described reflected light to form the second auxiliary reflected light and to inject in the described optical sensing module.
22. method according to claim 17, wherein said light emission module is the backlight of this face equipment, this backlight is arranged on outer or be arranged on and be different from outside described first surface and described second side with respect to second of this first surface, described light path adjusting module further comprises at least one auxiliary optical path adjustment unit, described at least one auxiliary optical path adjustment unit in order to the described incident light that reflects described backlight and launch to form the first auxiliary reflected light and to be incident upon described the first light path adjustment unit.
23. method according to claim 22, wherein said at least one auxiliary optical path adjustment unit is rotatable, when described at least one auxiliary optical path adjustment unit rotates to the first angle, the described incident light that described backlight is launched can be by described at least one auxiliary optical path adjustment unit reflection, to inject described face equipment as backlight, when described at least one auxiliary optical path adjustment unit rotated to the second angle, the described incident light that described backlight is launched just can be reflected to form the described first auxiliary reflected light by described at least one auxiliary optical path adjustment unit.
24. method according to claim 15, wherein said face equipment also is provided with the light path adjustment unit, and described light path adjustment unit is liquid crystal cell, electric pulse wet type element or electric driven color-changing part, so that the function that scans switching to be provided.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910160047 CN101957691B (en) | 2009-07-20 | 2009-07-20 | Optical touch control system and operating method thereof |
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| CN 200910160047 CN101957691B (en) | 2009-07-20 | 2009-07-20 | Optical touch control system and operating method thereof |
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| CN101957691B true CN101957691B (en) | 2013-03-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103455209B (en) * | 2012-06-04 | 2016-09-28 | 原相科技股份有限公司 | Optical sensing apparatus |
| CN106933428B (en) * | 2017-03-10 | 2020-07-24 | 联想(北京)有限公司 | Method for electronic device and electronic device |
| EP3599643B1 (en) * | 2018-07-26 | 2020-08-19 | PA.Cotte Family Holding GmbH | Multifunctional display |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299957A (en) * | 1999-12-15 | 2001-06-20 | 布朗和沙普.特萨有限公司 | Photo-electronic apparatus |
| CN2849828Y (en) * | 2005-11-28 | 2006-12-20 | 太瀚科技股份有限公司 | Optical input device with electronic pointer function |
| CN101441540A (en) * | 2007-11-20 | 2009-05-27 | 原相科技股份有限公司 | Optical touch control apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570814A (en) * | 2003-07-26 | 2005-01-26 | 于尚民 | Infrared touch-free input device with lenses and equipment applying same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299957A (en) * | 1999-12-15 | 2001-06-20 | 布朗和沙普.特萨有限公司 | Photo-electronic apparatus |
| CN2849828Y (en) * | 2005-11-28 | 2006-12-20 | 太瀚科技股份有限公司 | Optical input device with electronic pointer function |
| CN101441540A (en) * | 2007-11-20 | 2009-05-27 | 原相科技股份有限公司 | Optical touch control apparatus |
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