CN103970476B - Screen touch method and system - Google Patents
Screen touch method and system Download PDFInfo
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- CN103970476B CN103970476B CN201410126955.1A CN201410126955A CN103970476B CN 103970476 B CN103970476 B CN 103970476B CN 201410126955 A CN201410126955 A CN 201410126955A CN 103970476 B CN103970476 B CN 103970476B
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Abstract
Screen touch method and system, the writing function of stylus on the large-size screen monitors for example imparted knowledge to students for teacher can be realized using the present invention and the positioning precision or control accuracy of stylus is improved, it is characterized in that, including screen, the image display device being connected with the screen, described image display device connecting signal source equipment, the signal source equipment connects stylus, and the stylus is used for the touch control operation to the screen；The mapping table of pixel dot flicker rate and pixel present position coordinate points on screen is provided with the signal source equipment, for different pixels point specifies different flicker frequencies on screen so that pixel dot flicker rate forms man-to-man corresponding relation with the pixel present position coordinate points；According to the corresponding relation, when stylus is touched on screen, the flicker frequency for touching place's pixel can be collected, so that it is determined that stylus touches the position coordinates point information at place.
Description
Technical field
The present invention relates to screen touch technology, particularly a kind of screen touch method and system.
Background technology
Current outer touch technology and the camera touch technology of sharing out bonus of large-size screen monitors touch scheme.Infrared touch-control cardinal principle is infrared
The light screen illuminating back side, shade can be produced when object touches screen at the screen back side.The infrared camera at the back side catches shade
Change, computer is judged touch control operation according to these changes.Optical touch is mainly camera alignment screen or placement
In screen corner.Infrared touch technology and camera touch technology are required to use camera and image processing technique, whole system
System complex structure, and reaction speed is slow, and performance accuracy also reduces with picture size periodically to be needed to be corrected operation.
The content of the invention
The present invention is for defect or deficiency present in prior art, there is provided a kind of screen touch method and system.Using
The present invention on the large-size screen monitors for example for teacher's teaching can realize the writing function of stylus and improve the positioning accurate of stylus
Degree or control accuracy.
Technical solution of the present invention is as follows：
Screen touch method, it is characterised in that for different pixels point is advised on the screen being connected with image display device
Fixed different flicker frequency so that pixel dot flicker rate forms man-to-man corresponding pass with the pixel present position coordinate points
System；According to the corresponding relation, when stylus is touched on screen, can be adopted by the light detection device in the stylus
Collect the flicker frequency for touching place's pixel, so that it is determined that stylus touches the position coordinates point information at place.
The pixel dot flicker rate is to represent pixel in itself by when phase composition one that a bright phase and one are dark
The frequency of individual mechanical periodicity.
Described image display device includes that projector or liquid crystal panel drive module.
The flicker frequency of the place's of touching pixel shows dress by being transferred to connection described image after photoelectric signal transformation
The signal source equipment put, the signal source equipment is closed by the way that pixel dot flicker rate is corresponding with pixel present position coordinate points
It is that table determines that stylus touches the position coordinates point at place.
The flicker frequency of the place's of touching pixel is transferred to the letter of connection described image display device with RF RF-wises
Number source device, the signal source equipment is provided with the wireless module for receiving RF, and the stylus is provided with the nothing for sending RF
Line module.
The signal source equipment includes host computer or the device including possessing picture signal output function.
Screen touch-control system, it is characterised in that including screen, the image display device being connected with the screen, the figure
As display device connecting signal source equipment, the signal source equipment connects stylus, and the stylus is used for the screen
Touch control operation；Pixel dot flicker rate and pixel present position coordinate points on screen are provided with the signal source equipment
Mapping table, is that different pixels point specifies different flicker frequencies on screen so that pixel dot flicker rate and the pixel
Present position coordinate points form man-to-man corresponding relation；According to the corresponding relation, when stylus is touched on screen, energy
The flicker frequency for touching place's pixel is enough collected, so that it is determined that stylus touches the position coordinates point information at place.
The stylus includes writing touch device positioned at nib.
The stylus includes clicking button positioned at a body.
The stylus includes light detection device and the photoelectric conversion device being connected with the light detection device, the photoelectricity
Conversion equipment connects RF modules, and the RF modules are located inside the stylus；The signal source equipment has RF reception devices,
The signal source equipment includes host computer or the device including possessing picture signal output function.
The technology of the present invention effect is as follows：The present invention provides a kind of method of the large-size screen monitors touch-control of simple possible.Its know-why
It is：Big screen display device（Such as projector or LCD screen）Each pixel is dodged by the frequency and time interval for pre-defining
It is bright, because flicker frequency is high, human eye None- identified.But the stylus with light detection device can capture this frequency letter
Breath, and host computer is transmitted to by RF modes, main frame can table look-up from frequency information and determine stylus position coordinate, so that real
Now serve as the purpose of mouse touch-control large-size screen monitors with stylus.
Corresponding relation by setting up pixel dot flicker rate and pixel present position coordinate points on screen of the invention
Table, is that different pixels point specifies different flicker frequencies on screen so that pixel dot flicker rate and the pixel present position
Coordinate points form man-to-man corresponding relation, and the writing function of stylus can be realized on the large-size screen monitors for example for teacher's teaching
And improve the positioning precision or control accuracy of stylus.
Using the present invention, can complete to be clicked on large-size screen monitors, smoothness writes the function with remote-controlled operation picture mouse（In the air
Mouse function）, theory orientation precision can reach pixel scale, and picture size adjust anyway all need not school again
It is accurate.
Brief description of the drawings
Fig. 1 is to implement screen touch-control system structural representation of the invention.
Reference lists as follows：2- styluses；3- signal source equipments；4- image display devices；11- screens；12- pixels
Point；21- photoelectric conversion devices；22-RF modules；23- clicks button；24- writes touch device；31-RF reception devices.
Specific embodiment
Below in conjunction with the accompanying drawings（Fig. 1）The present invention will be described.
Fig. 1 is to implement screen touch-control system structural representation of the invention.As shown in figure 1, screen touch-control system, its feature
It is, including screen 11 that the image display device 4 being connected with the screen 11, the connecting signal source of described image display device 4 sets
Standby 3, the connection stylus 2 of the signal source equipment 3, the stylus 2 is used for the touch control operation to the screen 11；The signal
Pixel dot flicker rate and pixel are provided with source device 3（Partial pixel point 12 is illustrated in figure, in fact, on screen 11
Pixel can be covered with）The mapping table of present position coordinate points on screen, is that different pixels point specifies not on screen 11
Same flicker frequency so that pixel dot flicker rate forms man-to-man corresponding relation with the pixel present position coordinate points；
According to the corresponding relation, when stylus 2 is touched on screen 11, the flicker frequency for touching place's pixel can be collected,
So that it is determined that stylus touches the position coordinates point information at place.The stylus 2 includes writing touch device 24 positioned at nib.
The stylus 2 includes clicking button 23 positioned at a body.The stylus 2 includes light detection device and is filled with the optical detection
Put（May be disposed at nib）The photoelectric conversion device 21 of connection, the connection RF of the photoelectric conversion device 21 modules 22 are described
RF modules 22 are located inside the stylus 2；The signal source equipment 3 has RF reception devices 31, and the signal source equipment 3 is wrapped
Include host computer or the device including possessing picture signal output function.
Screen 11 is typically big projection screen or LCD screen, and picture is shown in this region.Pixel 12 is big composition
Each pixel of screen, occupies each coordinate points position of screen.While display image, modulation includes high-frequency sudden strain of a muscle
Bright, flicker rule is encoded in advance, can distinguish the position of this pixel relative screen origin of coordinates.Stylus 2, is used for
Receive the information of the light on screen and be converted into electric signal, sent by RF modules.The photoelectric conversion device 21 of stylus,
For receiving optical signal and being converted into electric signal.The RF modules 22 of stylus 2, for by the encoded signal wireless parties of electric signal
Formula sends out.Stylus 2 clicks button 23, for stylus 2 not contact screen 11 when selected operation.Stylus 2
Touch device 24 is write, selected, selected use when being write on screen for stylus is pressed.Signal source equipment 3, usually computer
Main frame possesses the device of picture signal output function, it is possible to carry out logical operation process to corresponding electric signal.RF is received
Device 31, for receiving the information that stylus sends.Image display device 4, typically projector or liquid crystal panel drive mould
Group.
Screen touch method, it is characterised in that for different pixels point is advised on the screen being connected with image display device
Fixed different flicker frequency so that pixel dot flicker rate forms man-to-man corresponding pass with the pixel present position coordinate points
System；According to the corresponding relation, when stylus is touched on screen, can be adopted by the light detection device in the stylus
Collect the flicker frequency for touching place's pixel, so that it is determined that stylus touches the position coordinates point information at place.The pixel dodges
Bright frequency is to represent the frequency that pixel is changed by the dark when phase composition a cycle of a bright phase and in itself.It is described
Image display device includes that projector or liquid crystal panel drive module.The flicker frequency for touching place's pixel passes through optical telecommunications
Number conversion after be transferred to connection described image display device signal source equipment, the signal source equipment by pixel flash frequently
Rate determines that stylus touches the position coordinates point at place with the mapping table of pixel present position coordinate points.It is described to touch place's picture
The flicker frequency of vegetarian refreshments is transferred to the signal source equipment of connection described image display device with RF RF-wises, and the signal source sets
The standby wireless module being provided with for receiving RF, the stylus is provided with the wireless module for sending RF.The signal source equipment
Device including host computer or including possessing picture signal output function.
It is hereby stated that, it is described above to contribute to skilled artisan understands that the invention, but not limit the present invention
The protection domain of creation.It is any equivalent described above, modification are improved without departing from the invention substance
And/or the implementation deleted numerous conforming to the principle of simplicity and carry out, each fall within the protection domain of the invention.
Claims (10)
1. screen touch method, it is characterised in that on the screen being connected with image display device be different pixels point regulation
Different flicker frequency so that pixel dot flicker rate forms man-to-man corresponding pass with the pixel present position coordinate points
System；According to the corresponding relation, when stylus is touched on screen, can be adopted by the light detection device in the stylus
Collect the flicker frequency for touching place's pixel, so that it is determined that stylus touches the position coordinates point information at place.
2. screen touch method according to claim 1, it is characterised in that the pixel dot flicker rate is to represent pixel
The frequency that point itself is changed by the dark when phase composition a cycle of a bright phase and.
3. screen touch method according to claim 1, it is characterised in that described image display device include projector or
Liquid crystal panel drives module.
4. screen touch method according to claim 1, it is characterised in that the flicker frequency for touching place's pixel is led to
The signal source equipment for connecting described image display device is transferred to after crossing photoelectric signal transformation, the signal source equipment passes through pixel
Dot flicker rate determines that stylus touches the position coordinates point at place with the mapping table of pixel present position coordinate points.
5. screen touch method according to claim 1, it is characterised in that the flicker frequency for touching place's pixel with
RF RF-wises are transferred to the signal source equipment of connection described image display device, and the signal source equipment is provided with for receiving
The wireless module of RF, the stylus is provided with the wireless module for sending RF.
6. screen touch method according to claim 1, it is characterised in that the signal source equipment of described image display device
Device including host computer or including possessing picture signal output function.
7. screen touch-control system, it is characterised in that including screen, the image display device being connected with the screen, described image
Display device connecting signal source equipment, the signal source equipment connects stylus, and the stylus is used to touch the screen
Control operation；Be provided with the signal source equipment pixel dot flicker rate and pixel on screen present position coordinate points it is right
Relation table is answered, is that different pixels point specifies different flicker frequencies on screen so that pixel dot flicker rate and the pixel institute
Place's position coordinates point forms man-to-man corresponding relation；According to the corresponding relation, when stylus is touched on screen, can
The flicker frequency for touching place's pixel is collected, so that it is determined that stylus touches the position coordinates point information at place.
8. screen touch-control system according to claim 7, it is characterised in that the stylus includes writing positioned at nib
Touch device.
9. screen touch-control system according to claim 7, it is characterised in that the stylus includes clicking positioned at a body
Button.
10. screen touch-control system according to claim 7, it is characterised in that the stylus include light detection device and
The photoelectric conversion device being connected with the light detection device, the photoelectric conversion device connects RF modules, and the RF modules are located at
Inside the stylus；The signal source equipment has a RF reception devices, the signal source equipment include host computer or including
Possesses the device of picture signal output function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126955.1A CN103970476B (en) | 2014-03-31 | 2014-03-31 | Screen touch method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126955.1A CN103970476B (en) | 2014-03-31 | 2014-03-31 | Screen touch method and system |
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| Publication Number | Publication Date |
|---|---|
| CN103970476A CN103970476A (en) | 2014-08-06 |
| CN103970476B true CN103970476B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410126955.1A Active CN103970476B (en) | 2014-03-31 | 2014-03-31 | Screen touch method and system |
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| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104461286B (en) * | 2014-11-26 | 2017-12-19 | 昆山国显光电有限公司 | A kind of display screen suspension touch control method |
| WO2018176486A1 (en) * | 2017-04-01 | 2018-10-04 | 深圳市汇顶科技股份有限公司 | Stylus, chip, touch-control device, electronic device and touch-control method |
| CN114047839A (en) * | 2021-11-10 | 2022-02-15 | 深圳市洲明科技股份有限公司 | Touch positioning method and device, touch interaction system and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122681A2 (en) * | 2000-01-26 | 2001-08-08 | Canon Kabushiki Kaisha | Coordinate input apparatus, coordinate input system, coordinate input method, and pointer |
| CN102184007A (en) * | 2011-04-15 | 2011-09-14 | 中国人民大学 | Interactive intelligent conference system based on pattern recognition and using method thereof |
| CN102740020A (en) * | 2012-05-28 | 2012-10-17 | 歌尔声学股份有限公司 | Control method of plasma television, Bluetooth touch pen and plasma television |
-
2014
- 2014-03-31 CN CN201410126955.1A patent/CN103970476B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122681A2 (en) * | 2000-01-26 | 2001-08-08 | Canon Kabushiki Kaisha | Coordinate input apparatus, coordinate input system, coordinate input method, and pointer |
| CN102184007A (en) * | 2011-04-15 | 2011-09-14 | 中国人民大学 | Interactive intelligent conference system based on pattern recognition and using method thereof |
| CN102740020A (en) * | 2012-05-28 | 2012-10-17 | 歌尔声学股份有限公司 | Control method of plasma television, Bluetooth touch pen and plasma television |
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| CN103970476A (en) | 2014-08-06 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170517 Address after: 214213, room 3, building 10, Yixing photoelectric industry park, No. 101, apricot Road, Yixing Economic Development Zone, Jiangsu, Wuxi Applicant after: Wuxi e-sphere Education Technology Co. Ltd. Address before: 214200 Jiangsu city of Wuxi province Yixing Qiting Street Jing Yi Road No. 109 Yixing Pioneer Park building D10 Applicant before: Wuxi Seemile Laser Display Technology Co., Ltd. |
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