CN103853389B - Coordinate setting module, optical touch control system and calculating touch medium coordinate method - Google Patents
Coordinate setting module, optical touch control system and calculating touch medium coordinate method Download PDFInfo
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- CN103853389B CN103853389B CN201210514886.2A CN201210514886A CN103853389B CN 103853389 B CN103853389 B CN 103853389B CN 201210514886 A CN201210514886 A CN 201210514886A CN 103853389 B CN103853389 B CN 103853389B
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- 230000011514 reflex Effects 0.000 claims description 4
- 230000002463 transducing effect Effects 0.000 claims 2
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- 230000007246 mechanism Effects 0.000 abstract description 5
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- 238000004458 analytical method Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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Abstract
The invention discloses a kind of coordinate setting module.Described coordinate setting module includes image sensing assembly, the first luminous source, the second luminous source and processor.Described image sensing assembly has side and upper end, and described image sensing assembly captures the image that reflecting assembly is reflected.Described first luminous source is arranged on described side, in order to export the first light.Described second luminous source is arranged on described upper end, in order to export the second light.Described processor electrically connects described image sensing assembly.Described processor receives described first light according to described image sensing assembly and is produced the first image to judge touch-control state, and is produced the second image to judge position of touch according to described image sensing assembly described second light of reception.The present invention can avoid touch medium actual touch panel time perform coordinate computation mechanism, and coordinate figure when quickly obtaining touch medium contact surface plate, be effectively improved locating speed and the precision of coordinate setting module.
Description
Technical field
The present invention relates to the side of the coordinate of a kind of coordinate setting module, optical touch control system and calculating touch medium thereof
More particularly to a kind of, method, can determine whether that touch medium has been touched touch surface and just started the coordinate setting of correct coordinates computer
The seat calibration method of module, optical touch control system and calculating touch medium thereof.
Background technology
Luminous source is arranged on the top of optical pickocff by traditional optical touch module, the most available correct light
Learn blocking path, it is ensured that the processor of optical touch module calculates correct object lap position.But, hanging down of luminous source
The highest straight capturing images camera lens at optical pickocff, user manipulates traditional optical touch module by object
Time, object, not yet close to before touch-control surface, will interdict light and make optical pickocff detect touch output, make
Become the inconvenience used.If being moved to by luminous source and the position of optical pickocff same level, it is defeated that object covers luminous source institute
The light gone out and the shade produced can produce skew, optical pickocff cannot according to capture image correctly calculate object blocking position
Put.Therefore, the shortcoming how overcoming prior art, designing one can be when object almost touches or directly touches touch surface
Just start coordinate calculator system, to calculate the optical touch control system of correct object lap position, be related industry
Give priority to target.
Summary of the invention
The present invention provides a kind of and can determine whether that touch medium just starts the seat of correct coordinates computer to touch touch surface
Mark locating module, optical touch control system and the seat calibration method of calculating touch medium thereof, to solve above-mentioned problem.
The open a kind of coordinate setting module of the claim of the present invention, is used for calculating the coordinate of touch medium.Described
Coordinate setting module includes image sensing assembly, the first luminous source, the second luminous source and processor.Described image sensing assembly
Having side and upper end, described image sensing assembly captures the image that reflecting assembly is reflected.Described first luminous source is arranged on
Described side, in order to export the first light.Described second luminous source is arranged on described upper end, in order to export the second light.Described
Processor electrically connects described image sensing assembly.Described processor receives described first light institute according to described image sensing assembly
Produce the first image to judge touch-control state, and receive described second light according to described image sensing assembly and produced second
Image is to judge position of touch.
The claim of the present invention separately open a kind of optical touch control system, is used for calculating the coordinate of touch medium.
Described optical touch control system includes panel and coordinate setting module.Described coordinate setting module is arranged on the panel.
Described coordinate setting module includes image sensing assembly, the first luminous source, the second luminous source and processor.Described image sensing
Assembly has side and upper end, and described image sensing assembly captures the image that reflecting assembly is reflected.Described first luminous source sets
Put at described side, in order to export the first light.Described second luminous source is arranged on described upper end, in order to export the second light.
Described processor electrically connects described image sensing assembly.Described processor receives described first light according to described image sensing assembly
Line is produced the first image to judge touch-control state, and receives described second light according to described image sensing assembly and produced
Second image is to judge position of touch.
The claim of the present invention separately discloses a kind of seat calibration method calculating touch medium.Described method includes defeated
Go out the first light, export the second light, receive the first image produced by described first light, judge according to described first image
Touch-control state, receives the second image produced by described second light, and according to described second image to judge position of touch.
The optical touch control system of the present invention not only can avoid touch medium when actual touch panel i.e. hold
Row-coordinate calculation mechanism, also can quickly obtain coordinate figure during touch medium contact surface plate, therefore be effectively increased coordinate setting mould
The locating speed of block and precision.
Accompanying drawing explanation
Figure 1A is the schematic diagram of the optical touch control system of the embodiment of the present invention.
Figure 1B is the schematic diagram of the optical touch control system of another embodiment of the present invention.
Fig. 2 is the flow chart of the coordinate of the calculating touch medium of first embodiment of the invention.
Fig. 3 is the flow chart of the coordinate of the calculating touch medium of second embodiment of the invention.
Wherein, description of reference numerals is as follows:
10 optical touch control system 12 touch medium
14 panel 16 coordinate setting modules
18 image sensing assembly 18A sides
18B upper end 20 first luminous source
22 second luminous source 24 reflecting assemblies
26 processor 28 mirror components
B1 the first light B2 the second light
Step 200,202,204,206,208,210
Step 300,302,304,306,308,310,312
Detailed description of the invention
Refer to the schematic diagram of the optical touch control system 10 that Figure 1A, Figure 1A are the embodiment of the present invention.User may utilize
Touch medium 12 draws lines track, and optical touch control system 10 is used for detecting the coordinate of touch medium 12, with according to coordinate
Export corresponding operational order.Optical touch control system 10 includes panel 14 and coordinate setting module 16.Touch medium 12 can
Marking on the surface of panel 14, coordinate setting module 16 is then arranged on panel 14, in order to calculate the coordinate of touch medium 12.One
For as, touch medium 12 can be finger or the pointer of user.
As shown in Figure 1A, coordinate setting module 16 includes image sensing assembly the 18, first luminous source the 20, second luminous source
22, reflecting assembly 24 and processor 26.Reflecting assembly 24 is arranged on the side of panel 14, and image sensing assembly 18,
One luminous source 20 and the second luminous source 22 are arranged on the opposite side of panel 14.First luminous source 20 and the second luminous source 22 are respectively
It is used for exporting the first light B1 and the second light B2, and reflexes to image sensing assembly 18 via reflecting assembly 24, to produce phase
The first image answered and the second image.Panel 14 arranges mirror components 28 in the side of relative image sensory package 18 so that figure
As sensory package 18 can capture the real image virtual image of touch medium 12, and then coordinates computed simultaneously.Image sensing assembly 18 has side
End 18A (hatched example areas) and upper end 18B (dotted region), the first luminous source 20 is arranged on side 18A, and the second luminous source
22 are arranged on upper end 18B.
Wherein, coordinate setting module 16 can include multiple image sensing assembly 18 further, sets up each end at panel 14 separately
Angle or each end edge, as shown in Figure 1B.The upper end of each image sensing assembly 18 arranges luminous source.Figure 1B is another embodiment of the present invention
The schematic diagram of optical touch control system 10.Coordinate setting module 16 may utilize touch medium 12 at each image sensing assembly
The image space of 18 is with trigonometric function coordinates computed.The quantity of image sensing assembly 18 and allocation position do not limit in previous embodiment
Described, end is depending on design requirement.
Additionally, processor 26 electrical connection graph can be produced according to image sensing assembly 18 as sensory package 18, processor 26
The first image judge the touch-control state of touch medium 12 and panel 14.Specifically, touch medium 12 enters coordinate setting mould
The reconnaissance range of block 16 can cover the first light B1, and the first light B1 of part is shielded and produces first on reflecting assembly 24
Dark areas.Image sensing assembly 18 fechtable has the first image of the first dark areas, and then, the first dark space analyzed by processor 26
Territory is the brightness value of imaging in the first image, to judge the touch-control state of touch medium 12 and panel 14.First dark areas can be
The size on one or more hurdles, maybe can set and compare threshold value and judge whether to may make up first dark areas.Such as, this
Bright three the hurdle persons that are smaller in size than setting occlusion image are not belonging to the first dark areas.
Processor 26 compares brightness value and the threshold value of the first image, and judges touch medium 12 whether according to comparative result
Touch panel 14.The brightness value of the first image can include multiple brightness number, and each brightness number all represents first
The brightness number on one of them hurdle of image；Threshold value also includes multiple door numerical value, corresponding first image of each door numerical value
The brightness door on multiple hurdles.When one of them brightness number of the first image is less than threshold value, the hurdle of this brightness number is
The first dark areas in first image, according to the brightness value of the first dark areas, processor 26 can judge that touch medium 12 has connect
Contact panel 14.
On the other hand, processor 26 can judge touch-control according to the second image produced by image sensing assembly 18 further
The medium 12 position of touch on panel 14.When touch medium 12 is arranged on panel 14, touch medium 12 can shaded portions the
Two light B2, and form the second dark areas at reflecting assembly 24.Then, processor 26 can perform multiple brightness values of the second image
With the comparison of a door numerical value, to find out the second dark areas position of imaging in the second image, and judge touch-control matchmaker accordingly
It is situated between 12 at the position of touch coordinate figure of touch medium 12 (imply that calculate) of panel 14.Second dark areas can be one or more
The size on hurdle, maybe can set and compare threshold value and judge whether to may make up second dark areas.Such as, the present invention can set screening
Three the hurdle persons that are smaller in size than covering image are not belonging to the second dark areas.
As shown in Figure 1A, the first luminous source 20 is arranged on side 18A, and the second luminous source 22 is arranged on upper end 18B so that
First luminous source 20 compares second luminous source 22 surface (touch medium 12 is in order to the touch-control surface marked) closer to panel 14.
When touch medium 12 enters the reconnaissance range of coordinate setting module 16, processor 26 pioneer's motion video sensory package 18 captures first
Image, and judge touch-control state according to the brightness value of the first dark areas in the first image.If judging, touch medium 12 contacts
To panel 14 (or the distance between touch medium 12 and panel 14 is less than default value), processor 26 separately can start to perform the second image
Analysis, to calculate further the touch medium 12 position of touch (coordinate figure) on the surface of panel 14.
It is noted that processor 26 another alternative electrical connection the first luminous source 20 and the second luminous source 22.Process
Device 26 can sequential start image sensing assembly the 18, first luminous source 20 and the second luminous source 22, drive image sensing assembly 18
Obtain the first image and the second image respectively, and transfer to processor 26 to synchronize to carry out the analysis of touch-control state and position of touch.Or
Person is in order to effectively save the energy resource consumption of coordinate setting module 16, and processor 26 can control first in the way of segmentation startup
Light source 20 and the second luminous source 22 export the first light B1 and the second light B2 respectively.First luminous source 20 and the second luminous source 22
Light output time length can be different.If coordinate setting module 16 has multiple image sensing assembly 18, then different images
Sensory package 18 can be disposably to export light or export light respectively.In battery saving mode, processor 26 can first open
Dynamic first luminous source 20 produces the first image, by analyzing the first image, after judging that touch medium 12 has touched panel 14
Close the first luminous source 20, and start the second luminous source 22 in real time and produce the second image, the most not only can calculate touch-control matchmaker
Jie 12, at the correct position of touch of panel 14, also can save the long-time energy opening luminous source and consume.
Refer to the flow chart of the coordinate of the calculating touch medium 12 that Fig. 2, Fig. 2 are first embodiment of the invention.Shown in Fig. 2
Calculating touch medium 12 sit calibration method be useful in the optical touch control system 10 shown in Figure 1A, 1B.First, step is performed
200, carry out the initializing set of optical touch control system 10.Then, perform step 202, start the first luminous source 20.First
Light source 20 exports the first light B1, and the first light B1 can reflect via reflecting assembly 24 and be formed at image sensing assembly 18
First image.Then, step 204 is performed, it is judged that the touch-control state of touch medium 12.Touch medium 12 is put when panel 14, meeting
First light B1 of shaded portions and produce the first dark areas, the first image that therefore image sensing assembly 18 captures has first
Dark areas.Processor 26 compares brightness value and the threshold value of the first dark areas imaging in the first image, it is judged that touch medium 12
Whether touch panel 14.If brightness value is higher than threshold value, it is judged that touch medium 12 does not touches panel 14, perform step 202；
If brightness value is less than threshold value, it is judged that touch medium 12 contact surface plate 14, then performs step 206, start the second luminous source 22,
Now alternative first luminous source 20 of closing is to save electric power.
Second luminous source 22 can export after being activated the second light B2, the second light B2 via reflecting assembly 24 reflection also
The second image can be formed at image sensing assembly 18.Owing to touch medium 12 is already provided at panel 14, imply that touch medium 12 hides
Cover the second light of part and produce the second dark areas.Therefore then perform step 208, calculate the position of touch medium 12, place
Reason device 26, according to the second dark areas position of imaging in the second image, calculates the touch medium 12 touch-control position on panel 14 surface
Put (coordinate figure).Then, performing step 210, processor 26 exports 12 coordinate figures at panel 14 of touch medium, for operation
Corresponding application program, now alternative closedown the second luminous source 22.After output coordinate value, coordinate setting module 16 completes
Disposable touch detection and location, be therefore returned to perform step 202, be again started up the first luminous source 20, in order to order about figure
As sensory package 18 captures the first image, and order about processor 26 and judge another stage of touch medium 12 according to the first image
Touch-control state.
Refer to the flow chart of the coordinate of the calculating touch medium 12 that Fig. 3, Fig. 3 are second embodiment of the invention.Shown in Fig. 3
Calculating touch medium 12 sit calibration method be useful in the optical touch control system 10 shown in Figure 1A, 1B.Second embodiment
Step 200-210 of method described in the identical first embodiment of step 300-310 of the coordinate calculating touch medium 12.Second implements
Example is the battery saving mode of another kind of kenel, and the second embodiment is with the deviation of first embodiment, and the second embodiment is in output
After the coordinate figure of touch medium 12, then perform step 312, it is judged that whether touch medium 12 leaves panel 14.If judgement touch-control
Medium 12 does not leaves panel 14, and image sensing assembly 18 can capture the second image again, transfers to processor 26 to analyze the second dark space
The image space in territory, calculates the touch medium 12 position of touch in next stage；If judging the already out panel of touch medium 12
14, processor 26 can cut out the second luminous source 22 and start the first luminous source 20, and orders about image sensing assembly 18 and capture first
Image, analyzes the first dark areas in the first image, and judges the touch medium 12 touch-control in next stage for processor 26
State.
Furthermore, it is understood that in order to reach to save the purpose of the energy, when the second embodiment performs step 312, processor 26 compares
The brightness value of relatively the second image and threshold value, if multiple brightness value is all higher than corresponding door numerical value, the second dark areas disappears, table
Show the already out panel of touch medium 12 14, therefore then perform step 302, start the eds machine of the touch-control state of touch medium 12
System；If having a brightness number less than corresponding door numerical value, the second dark areas is because touch medium 12 covers the second light B1
Existing, imply that the touch medium 12 still position reconnaissance range in coordinate setting module 16, touch medium 12 is not left panel 14, is then connect
Execution step 308, to calculate the touch medium 12 position of touch in next stage.
In the method for first embodiment, processor 26, after the position of touch exporting touch medium 12 each time, just opens
The detecting mechanism of the touch-control state of dynamic touch medium 12, marks each of process calculating touch medium 12 on panel 12
Coordinate figure.When marking on panel 12, no matter whether touch medium 12 has the reconnaissance range departing from coordinate setting module 16, processes
Device 26 all can repeatedly start the detecting mechanism of the touch-control state of touch medium 12, it is ensured that coordinate setting module 16 can grab tactile
Control medium 12 is at each position of touch of moving process.On the other hand, the method for the second embodiment can be in output touch medium
After the position of touch of 12, gradually judge that whether touch medium 12 is away from panel 12.If touch medium 12 does not leaves panel 14, coordinate
Locating module 16 just can use processor 26 to analyze the second image that image sensory package captures in real time, calculates touch medium 12 and exists
The position of touch in this stage.Consequently, it is possible to the method that the optical touch control system 10 of the present invention may utilize the second embodiment improves
The calculating speed of coordinate detecting, and save the energy resource consumption started needed for the first luminous source 20.
In sum, the optical touch control system of the present invention utilizes ornaments at two luminous sources of diverse location so that sit
Mark locating module can first detect whether touch medium touches panel, and performs coordinate meter again after touch medium with plate contact
The device system of calculation, not only can be computed correctly out the touch medium coordinate figure at panel, also can reach the purpose of energy saving.It is arranged on figure
As the first luminous source of the side of sensory package, the first dark space can be produced in the first image when touch medium contact surface plate
Territory, coordinate setting module is by comparing brightness value and the threshold value of the first dark areas, it is judged that touch medium is relative to the touch-control of panel
State.It is arranged on the second luminous source of the upper end of image sensing assembly, then starts after judging touch medium contact surface plate, make
Obtain coordinate setting module and can calculate the touch medium correct position of touch on panel.Therefore, the optical touch control system of the present invention
System not only can avoid touch medium when actual touch panel i.e. perform coordinate computation mechanism, also can quickly be touched
Coordinate figure during control medium contact surface plate, therefore it is effectively increased locating speed and the precision of coordinate setting module.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (28)
1. a coordinate setting module, is arranged on panel with for calculating the touch medium coordinate at described panel, its feature
Being, described coordinate setting module includes:
Image sensing assembly, has side and upper end, and described image sensing assembly captures the image that reflecting assembly is reflected；
First luminous source, is arranged on described side, and described first luminous source exports the first light；
Second luminous source, is arranged on described upper end, and described second luminous source exports the second light；And
Processor, electrically connects described image sensing assembly, and described processor receives described first according to described image sensing assembly
Light is produced the first image in order to judge that described touch medium is suspended state relative to the touch-control state of described panel or touches
Touch state, and produced the second image in order to judge touch-control position according to described image sensing assembly described second light of reception
Put.
2. coordinate setting module as claimed in claim 1, it is characterised in that described first image be described first light via
Described reflecting assembly reflexes to described image sensing assembly and produces, and described second image is that described second light is via described
Reflecting assembly reflexes to described image sensing assembly and produces.
3. coordinate setting module as claimed in claim 2, it is characterised in that described image sensing assembly is to sense described touch-control
First light described in medium shaded portions and the first dark areas of producing on described reflecting assembly, and according to described first dark space
Territory brightness value of imaging in described first image judges described touch-control state.
4. coordinate setting module as claimed in claim 3, it is characterised in that when described first dark areas is at described first image
The brightness value of middle imaging is less than threshold value, then judge described touch medium contact surface plate.
5. coordinate setting module as claimed in claim 2, it is characterised in that described image sensing assembly is to sense described touch-control
Second light described in medium shaded portions and the second dark areas of producing on described reflecting assembly, and according to described second dark space
Territory is position of touch described in the position judgment of imaging in described second image.
6. coordinate setting module as claimed in claim 1, it is characterised in that more described second luminous source of described first luminous source
Press close to the surface of panel.
7. coordinate setting module as claimed in claim 1, it is characterised in that it is luminous that described processor timesharing starts described first
Source and described second luminous source.
8. coordinate setting module as claimed in claim 7, it is characterised in that described processor start described first luminous source with
Produce described first image, and it is luminous whether to start described second according to described touch-control Determines acquired by described first image
Source is to produce described second image.
9. coordinate setting module as claimed in claim 4, it is characterised in that the described brightness value of described first image wraps respectively
Including multiple brightness number, each brightness number represents the brightness number on one of them hurdle of described first image.
10. coordinate setting module as claimed in claim 4, it is characterised in that described threshold value includes multiple door numerical value, uses
With the brightness door that multiple hurdles of corresponding described first image are the most corresponding.
11. 1 kinds of optical touch control systems, are used for calculating the coordinate of touch medium, it is characterised in that described optical touch control system
System includes:
Panel；And
Coordinate setting module, is arranged on the panel, and described coordinate setting module includes:
Image sensing assembly, has side and upper end, and described image sensing assembly captures the image that reflecting assembly is reflected；
First luminous source, is arranged on described side, and described first luminous source exports the first light；
Second luminous source, is arranged on described upper end, and described second luminous source exports the second light；And processor, electrically connect institute
Stating image sensing assembly, described processor receives described first light according to described image sensing assembly and is produced the first image use
To judge that described touch medium is suspended state or touching state relative to the touch-control state of described panel, and according to described figure
The second image is produced in order to judge position of touch as sensory package receives described second light.
12. optical touch control systems as claimed in claim 11, it is characterised in that described first image is described first light
Reflex to described image sensing assembly via described reflecting assembly and produce, and described second image be described second light via
Described reflecting assembly reflexes to described image sensing assembly and produces.
13. optical touch control systems as claimed in claim 12, it is characterised in that described image sensing assembly sensing is described to be touched
First light described in control medium shaded portions and the first dark areas of producing on described reflecting assembly, and according to described first dark
Region brightness value of imaging in described first image judges described touch-control state.
14. optical touch control systems as claimed in claim 13, it is characterised in that when described first dark areas is described first
In image, the brightness value of imaging is less than threshold value, then judge that described touch medium touches described panel.
15. optical touch control systems as claimed in claim 12, it is characterised in that described image sensing assembly sensing is described to be touched
Second light described in control medium shaded portions and the second dark areas of producing on described reflecting assembly, and according to described second dark
Region is position of touch described in the position judgment of imaging in described second image.
16. optical touch control systems as claimed in claim 11, it is characterised in that more described second of described first luminous source
Light source presses close to the surface of described panel.
17. optical touch control systems as claimed in claim 11, it is characterised in that described processor timesharing starts described first
Luminous source and described second luminous source.
18. optical touch control systems as claimed in claim 17, it is characterised in that it is luminous that described processor starts described first
Source is to produce described first image, and whether starts described second according to described touch-control Determines acquired by described first image
Luminous source is to produce described second image.
19. optical touch control systems as claimed in claim 14, it is characterised in that the described brightness value of described first image divides
Not including multiple brightness number, each brightness number represents the brightness number on one of them hurdle of described first image.
20. optical touch control systems as claimed in claim 14, it is characterised in that described threshold value includes multiple door number
Value, in order to the brightness door that multiple hurdles of corresponding described first image are the most corresponding.
21. 1 kinds of seat calibration methods calculating touch medium, described method is applied to the coordinate setting module being arranged on panel,
Described coordinate setting module includes image sensing assembly, it is characterised in that described method includes:
The first light is exported by the first luminous source of the side being arranged on described image sensing assembly；
The second light is exported by the second luminous source of the upper end being arranged on described image sensing assembly；
Receive the first image produced by described first light；
Judge that described touch medium is suspended state or touching relative to the touch-control state of described panel according to described first image
State；
Receive the second image produced by described second light；And
According to described second image to judge position of touch.
22. methods as claimed in claim 21, it is characterised in that described method farther includes:
Utilize reflecting assembly that described first light is reflexed to image sensing assembly, to produce described first image；And
Utilize described reflecting assembly that described second light is reflexed to described image sensing assembly, to produce described second image.
23. methods as claimed in claim 22, it is characterised in that described method farther includes:
First light described in transducing part shielded and in the first dark areas produced by described reflecting assembly；And
Described touch-control state is judged according to described first dark areas brightness value in described first image.
24. methods as claimed in claim 23, it is characterised in that described method farther includes:
Described first dark areas in described first image the brightness value of imaging less than threshold value time, it is judged that described touch medium touch
Meet plate.
25. methods as claimed in claim 22, it is characterised in that described method farther includes:
Second light described in transducing part shielded and on described reflecting assembly produce the second dark areas；And
According to described second dark areas position of touch described in the position judgment of imaging in described second image.
26. methods as claimed in claim 21, it is characterised in that described method farther includes:
According to the described touch-control state acquired by described first image, decide whether to export described second light to produce described the
Two images.
27. methods as claimed in claim 24, it is characterised in that described method farther includes:
The relatively brightness value of described second image and described threshold value；And
When described brightness value is higher than described threshold value, it is judged that described touch medium does not touch described panel.
28. methods as claimed in claim 21, it is characterised in that described first light is exported by the first luminous source, described
Two light are exported by the second luminous source, and described first image is produced by image sensing assembly with described second image, and institute
Stating the first luminous source and be arranged on the side of described image sensing assembly, described second luminous source is arranged on described image sensing assembly
Upper end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514886.2A CN103853389B (en) | 2012-12-04 | 2012-12-04 | Coordinate setting module, optical touch control system and calculating touch medium coordinate method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514886.2A CN103853389B (en) | 2012-12-04 | 2012-12-04 | Coordinate setting module, optical touch control system and calculating touch medium coordinate method |
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| CN103853389A CN103853389A (en) | 2014-06-11 |
| CN103853389B true CN103853389B (en) | 2016-12-28 |
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| TW201112091A (en) * | 2009-09-17 | 2011-04-01 | Pixart Imaging Inc | Optical touch device and locating method thereof, and liner light source module |
| TW201137704A (en) * | 2010-04-23 | 2011-11-01 | Sunplus Innovation Technology Inc | Optical touch-control screen system and method for recognizing relative distance of objects |
| TW201145116A (en) * | 2010-06-04 | 2011-12-16 | Au Optronics Corp | Optical touch panel and touch display panel and touch input method thereof |
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2012
- 2012-12-04 CN CN201210514886.2A patent/CN103853389B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201112091A (en) * | 2009-09-17 | 2011-04-01 | Pixart Imaging Inc | Optical touch device and locating method thereof, and liner light source module |
| TW201137704A (en) * | 2010-04-23 | 2011-11-01 | Sunplus Innovation Technology Inc | Optical touch-control screen system and method for recognizing relative distance of objects |
| TW201145116A (en) * | 2010-06-04 | 2011-12-16 | Au Optronics Corp | Optical touch panel and touch display panel and touch input method thereof |
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