CN201600835U - Interactive photoelectric display screen - Google Patents
Interactive photoelectric display screen Download PDFInfo
- Publication number
- CN201600835U CN201600835U CN2010201099261U CN201020109926U CN201600835U CN 201600835 U CN201600835 U CN 201600835U CN 2010201099261 U CN2010201099261 U CN 2010201099261U CN 201020109926 U CN201020109926 U CN 201020109926U CN 201600835 U CN201600835 U CN 201600835U
- Authority
- CN
- China
- Prior art keywords
- display screen
- interactive
- screen body
- frame
- photoelectricity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The utility model discloses an interactive photoelectric display screen, which structurally comprises a display screen body, an image sensor and a luminous device, wherein the image sensor is located on the display screen body, and the luminous device is abutted to the image sensor. A reflecting frame is disposed on a frame of the display screen body. The interactive photoelectric display screen can track handwriting dynamic positions without a special signal pen.
Description
Technical field
The utility model relates to a kind of interactive photoelectricity product, especially a kind ofly is applied in the middle of the electric whiteboard system, need not the interactive photoelectricity display screen that the special signal pen can conveniently use.
Background technology
The realization basis of electric whiteboard system is that person's handwriting is followed the tracks of, and adopts " Flame Image Process light pen position tracking technique " to realize the tracking of person's handwriting usually.Chinese patent ZL011080477 discloses a kind of system and method that is used for computing machine coordinate and control information input, wherein describe the principle of work of " Flame Image Process light pen position tracking technique " in detail, promptly the luminous point that produces with sign pen indicates the position of impact point, introduce the real-time images acquired of imageing sensor, extract the positional information of luminous point and be input to computing machine with signal processing circuit real-time analysis picture signal, carry out the physical location that calibrating coordinates makes the Position Tracking pen of cursor with the coordinate correction algorithm by interface circuit and corresponding software.Use electric whiteboard system that " Flame Image Process light pen position tracking technique " realize and have that cost is low, dirigibility is big, volume is little, be applicable to advantages such as giant-screen, but some shortcomings are arranged also: sign pen itself must be luminous, consume much electricity, use inconvenience, the complex structure of synchronous signal pen, cost is high.
In order to solve these technical matterss, Chinese patent 200910024619.5 discloses indication of a kind of position and tracking means, near imageing sensor luminescent device is set, reflectorized material is set on sign pen, the light signal that imageing sensor acquired signal pen reflects is also imported computing machine, calculate and simulate by the dynamic position of computer program again sign pen, and to terminal presentation facilities such as projector or electronic display output control signal.Under this technical scheme, still convenient inadequately though sign pen need not luminous can the use, can not find under the situation of sign pen for the moment, whole electric whiteboard system just can't use.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of interactive photoelectricity display screen, need not can realize the identifying the handwriting tracking of dynamic position of special-purpose sign pen.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of interactive photoelectricity display screen, the luminescent device that comprises the display screen body in the structure, is positioned at the imageing sensor on the display screen body and is provided with near imageing sensor, described display screen body is provided with reflective frame.
Described display screen body is rectangular, and its side frame and boundary frame area are reflective frame, and two imageing sensors are separately fixed at two drift angle places of display screen body, and the illumination range of luminescent device covers the side frame and the boundary frame area of display screen body.
Described reflective frame can be the frame that is pasted with reflective membrane.
Described reflective frame can also be the frame that is coated with reflecting coating.
Described luminescent device is an infrared transmitting tube.
Adopt the beneficial effect that technique scheme produced to be: the utility model is because the display screen body is provided with reflective frame, imageing sensor is gathered by the luminescent device emission, by the optical signalling of reflective frame reflection, when using any lighttight materials such as finger, teacher's pointer near the display screen body, be capable of blocking by the reflected light path of reflective frame to imageing sensor, thereby blocking-up is entered the light of imageing sensor by reflective frame reflection, like this, two imageing sensors of minimum use promptly may detect the position of finger, teacher's pointer etc.; Its principle is referring to Fig. 3, and among the figure, finger is positioned at an A place, and the imageing sensor in left side detects to point and is positioned on the line a at this moment, and the imageing sensor on right side detects finger and is positioned on the line b, and then the point of crossing A of line taking a and line b promptly determines the definite position of pointing; Thereby display screen of the present utility model need not the special signal pen, can follow the tracks of by convenient, fast and accurate dynamic position of identifying the handwriting.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of an embodiment of the utility model;
Fig. 2 is the partial enlarged drawing of the utility model imageing sensor and luminescent device part;
Fig. 3 is a principle schematic of the present utility model.
Embodiment
Referring to accompanying drawing, two imageing sensors 2 and, the light emitting region 2 that be provided with near imageing sensor that comprise rectangular display screen body 1 in the structure of a specific embodiment of the utility model, are separately fixed at two drift angle places of display screen body 1 cover the side frame of display screen body 1 and the infrared transmitting tube 3 of boundary frame area, the side frame of display screen body 1 and boundary frame area inboard are pasted with reflective membrane 4, and reflective membrane 4 is for being used for the total reflection reflective membrane of traffic sign.
Principle of work of the present utility model is: infrared transmitting tube 3 is to the infrared light of reflective membrane 4 emission specific wavelengths, imageing sensor 2 is gathered the infrared light that is reflected by reflective membrane 4, reflective membrane 4 is for being used for the total reflection reflective membrane of traffic sign, the efficient reflective function of this reflective membrane, can guarantee that catoptrical brightness is much higher than background light in the imageing sensor 2, thereby effectively improve signal to noise ratio (S/N ratio); When will point, when any light tight material such as teacher's pointer is placed on the display screen body 1, because of its blocking-up is imageing sensor 2 perception by reflective membrane 4 to the light path of imageing sensor 2, referring to accompanying drawing 3, the imageing sensor 2 in display screen body 1 upper left corner perceived finger, teacher's pointer etc. and was positioned on the line a this moment, the imageing sensor 2 in while display screen body 1 upper right corner perceives finger, teacher's pointer etc. and is positioned on the line b, can calculate finger, teacher's pointer etc. easily by signal processing circuit of the prior art and be positioned on the point of crossing A of line a and line b; Like this, when finger, teacher's pointer etc. are kept in motion, can carry out real-time follow-up to its dynamic position by two imageing sensors 2, receive and simulate its dynamic position signal by existing computer program again, and to terminal presentation facilities such as projector, electronic display conveying control signal, the motion of finger, teacher's pointer etc. can be converted into screen display in real time, reach the purpose of photoelectricity interactive writing.
Foregoing description only proposes as the enforceable technical scheme of the interactive photoelectricity display screen of the utility model, not as the single restrictive condition to its structure itself.
Claims (5)
1. interactive photoelectricity display screen, the luminescent device (3) that comprises display screen body (1) in the structure, is positioned at the imageing sensor (2) on the display screen body (1) and is provided with near imageing sensor (2), it is characterized in that: described display screen body (1) is provided with reflective frame.
2. a kind of interactive photoelectricity display screen according to claim 1, it is characterized in that: described display screen body (1) is rectangular, its side frame and boundary frame area are reflective frame, two imageing sensors (2) are separately fixed at two drift angle places of display screen body (1), and the illumination range of luminescent device (3) covers the side frame and the boundary frame area of display screen body (1).
3. a kind of interactive photoelectricity display screen according to claim 2 is characterized in that: be pasted with reflective membrane (4) on the described reflective frame.
4. a kind of interactive photoelectricity display screen according to claim 2 is characterized in that: be coated with reflecting coating on the described reflective frame.
5. a kind of interactive photoelectricity display screen according to claim 2 is characterized in that: described luminescent device (3) is an infrared transmitting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201099261U CN201600835U (en) | 2010-02-09 | 2010-02-09 | Interactive photoelectric display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201099261U CN201600835U (en) | 2010-02-09 | 2010-02-09 | Interactive photoelectric display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201600835U true CN201600835U (en) | 2010-10-06 |
Family
ID=42811898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201099261U Expired - Fee Related CN201600835U (en) | 2010-02-09 | 2010-02-09 | Interactive photoelectric display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201600835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969707A (en) * | 2017-04-07 | 2017-07-21 | 京东方科技集团股份有限公司 | A kind of detection means and its control method |
-
2010
- 2010-02-09 CN CN2010201099261U patent/CN201600835U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969707A (en) * | 2017-04-07 | 2017-07-21 | 京东方科技集团股份有限公司 | A kind of detection means and its control method |
| US10511780B2 (en) | 2017-04-07 | 2019-12-17 | Boe Technology Group Co., Ltd. | Detecting device, and method for controlling the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102799318B (en) | A kind of man-machine interaction method based on binocular stereo vision and system | |
| CN102707817B (en) | Laser inscription system | |
| US20110050650A1 (en) | Interactive input system with improved signal-to-noise ratio (snr) and image capture method | |
| CN101963871A (en) | Optical touch control system based on infrared spotlight recognition and realization method thereof | |
| JP2014517361A (en) | Camera-type multi-touch interaction device, system and method | |
| TWI520036B (en) | Object detection method and calibration apparatus of optical touch system | |
| TW201337684A (en) | Optical touch device, passive touch control system, and its input detection method | |
| TW201423484A (en) | Motion detection system | |
| CN104423721A (en) | Frameless multipoint touch man-machine interaction method and system based on radar eye | |
| TW201112092A (en) | Optical touch system and method thereof | |
| WO2015096335A1 (en) | Interaction recognition system and display device | |
| CN202795304U (en) | Front image multi-touch device based on infrared lasers | |
| CN102722254A (en) | Method and system for location interaction | |
| CN105807989A (en) | Gesture touch method and system | |
| CN103617642A (en) | Digital painting and writing method and device | |
| CN102375564A (en) | Method for interacting by adopting optical indicator, optical indicator as well as presentation method and system | |
| CN107193416B (en) | A kind of state identification method and device of touch object | |
| CN102156593A (en) | Optical touch screen and touch positioning method thereof | |
| KR101488287B1 (en) | Display Device for Recognizing Touch Move | |
| CN104834409A (en) | Optical image type touch system and touch image processing method | |
| CN201600835U (en) | Interactive photoelectric display screen | |
| CN112631445A (en) | Touch display system, touch display method, stylus and medium | |
| CN204066012U (en) | A kind of projection arrangement | |
| CN201741291U (en) | Infrared virtual reality teaching system based on Wiimote | |
| CN203606780U (en) | Multi-touch and gesture recognition fusion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20130209 |