CN102707839A - Display device - Google Patents
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- CN102707839A CN102707839A CN2011100758082A CN201110075808A CN102707839A CN 102707839 A CN102707839 A CN 102707839A CN 2011100758082 A CN2011100758082 A CN 2011100758082A CN 201110075808 A CN201110075808 A CN 201110075808A CN 102707839 A CN102707839 A CN 102707839A
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Abstract
The invention discloses a display device and aims to solve the problem that non-contact handwriting and drawing functions cannot be realized by using the conventional display device. The display device comprises a first wireless interface unit, a light spot position identification unit, a canvas processing unit, a video signal processing unit and a screen display unit, wherein the first wireless interface unit receives a screen camera shooting signal in a wireless mode; the light spot position identification unit identifies the positions of light spots which are formed by emitting laser beams to a screen from the screen camera shooting signal; the canvas processing unit is used for synthesizing tracks of the light spots; the video signal processing unit superposes a canvas video signal and a video signal which comes from a video signal source; the screen display unit is connected with the video signal processing unit; one end of the light spot position identification unit is connected with the first wireless interface unit, and the other end of the light spot position identification unit is connected with the canvas processing unit; and the other end of the canvas processing unit is connected with the video signal processing unit. The display device has the advantages that by combination of a laser technology, a short-distance wireless communication technology and an image processing technology, a user can perform writing operation, drawing operation and the like on the screen through a remote controller.
Description
Technical field
The present invention relates to display device, relate in particular to a kind of writing function display device that has.
Background technology
Existing display device; For example LCD TV, rear-projection TV, computer monitor etc.; Usually its main application all is to receive shows signal, for the user presents colourful content of TV program or digital video content, along with popularizing of development of high-tech, network application; Display device is integrated increasing expanded function, to satisfy the demand that people are become increasingly abundant.For example, in some display device, be integrated with touch-screen, the user can be through finger control content displayed, like page turning, do document identification etc., is applicable to small-sized meeting occasion.For another example; The user can have some application programs of main process equipment operation of data processing function through PC, notebook etc.; Through modes such as hand-written drawing board, mouses is that application program provides input; After application program processes, export to display device, thus be implemented on the display device write, function such as drawing.
But above-mentioned ability realization is write, the display device of painting function is not that cost is too high, is exactly to accomplish corresponding function by other treatment facility, uses inconvenience.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of display device, can realize contactless hand-written, painting function through display device.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of display device, said display device comprises:
Receive first radio interface unit of screen image pickup signal through wireless mode;
The light spot position recognition unit of the position of identification laser spot on screen from the screen image pickup signal;
Be responsible for the painting canvas processing unit of synthetic luminescent spot track;
Stack painting canvas vision signal and from the video signal processing unit of the vision signal of video signal source;
The screen display unit that links to each other with video signal processing unit;
Wherein, said light spot position recognition unit one end links to each other with said first radio interface unit, and the other end links to each other with said painting canvas processing unit; The said painting canvas processing unit other end links to each other with said video signal processing unit.
Further, said light spot position recognition unit comprises:
Identification comprises the On-Screen Identification unit of the frame of video of complete screen and laser spot, links to each other with first radio interface unit;
Correcting unit to frame of video is proofreaied and correct links to each other with the On-Screen Identification unit;
Calculate the location identification unit of laser spot, link to each other with the painting canvas processing unit with correcting unit respectively in the screen physical location.
Further, said painting canvas processing unit comprises:
The track storage unit;
Luminescent spot track processing unit according to the synthetic luminescent spot track in the position of laser spot on screen divides into groups links to each other with the track storage unit;
The painting canvas output unit that the output luminescent spot track divides into groups on the internal memory painting canvas links to each other with track storage unit, video signal processing unit respectively.
Further, said display device also comprises remote control module, and said remote controller module comprises:
Second radio interface unit links to each other with first radio interface unit through wireless mode;
Laser emission element to screen emission laser beam;
The switch key input block of control opening and closing laser emission element links to each other with laser emission element;
Image unit to screen is made a video recording links to each other with second radio interface unit.
Further, said remote controller module also comprises: produce the key-press input unit of wiping of erase signal, link to each other with second radio interface unit.
Further, said painting canvas unit also comprises: empty the internal memory painting canvas and remove the erase unit that luminescent spot track divides into groups in the track storage unit, erase unit links to each other with first radio interface unit, track storage unit and painting canvas output unit respectively.
Further, said first radio interface unit and second radio interface unit are blue tooth interface or Wi-Fi wireless transmission protocol interface.
Display device provided by the invention in conjunction with laser technology, short-distance wireless communication technology and image processing techniques, makes the user on screen, to identify video content through telepilot, writes at the enterprising running hand of screen, operation such as drawing; Adopt the present invention,, can develop abundant more application, satisfy the demand of people interactivity in conjunction with the video request program with time-shifting function, Web TV and following intelligent television with internet function.
Description of drawings
The composition structural representation of the display device that Fig. 1 provides for the embodiment of the invention;
The functional module of display module is formed synoptic diagram in the display device that Fig. 2 provides for the embodiment of the invention;
The functional unit of light spot position recognition unit is formed synoptic diagram in the display module that Fig. 3 provides for the embodiment of the invention;
The functional unit of painting canvas processing unit is formed structural representation in the display module that Fig. 4 provides for the embodiment of the invention;
The Elementary Function of remote control module is formed structural representation in the display device that Fig. 5 provides for the embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
Fig. 1 is the composition structural representation of display device provided by the invention, and this display device comprises display module 100 and remote control module 110 two large divisions, and said display module 100 can be televisor, computer monitor, monitor etc.The basic function of existing display module 100 is from the video signal source receiving video signals, on screen, shows then; The present invention has done the function expansion to display module 100 and remote controller module 110; Laser emission element 112 and image unit 111 in remote control module 110, have been increased; Arrive screen through laser emission element 112 emission of lasering beam 120; Screen by 111 pairs of display modules 100 of image unit is made a video recording, and then the screen image pickup signal is sent to display module 100 through wireless mode, and 100 pairs of screen image pickup signals of display module are handled the trace information that obtains laser beam; Then the trace image of laser beam and the vision signal of video signal source are superposeed, thereby be implemented in functions such as the enterprising running hand of screen is write, drawing.
Fig. 2 is that the functional module of display module in the display device provided by the invention is formed synoptic diagram, and display module 100 comprises: first radio interface unit 201, light spot position recognition unit 202, painting canvas processing unit 203, video signal processing unit 204, screen display unit 205;
First radio interface unit 201 receives the screen image pickup signal that transmits through wireless mode, and sends the screen image pickup signal to light spot position recognition unit 202.Wherein, comprise the luminous point 130 that laser radiation produces in the said screen image pickup signal on screen; Said wireless mode can adopt wireless short-distance host-host protocol, for example bluetooth, Wi-Fi etc.
Light spot position recognition unit 202 identifies the position of laser spot on screen from the screen image pickup signal, and sends positional information to painting canvas processing unit 203.In identifying, need be from frame of video recognition screen position and laser spot position, if identification less than, then abandon corresponding frame of video.
Painting canvas processing unit 203, the synthetic luminescent spot track that constitutes by laser spot on the internal memory canvas object, output painting canvas vision signal is given video signal processing unit 204.
Video signal processing unit 204, the vision signal of on the one hand video signal source being come is carried out processing such as decompress(ion), decoding; Receive the painting canvas vision signal that the painting canvas processing unit sends on the other hand, and painting canvas vision signal and the next vision signal of video signal source are superimposed, the picture signal of output after stack given screen display unit 205.
Screen display unit 205, the picture signal of receiving video signals processing unit 204 outputs shows on screen.
Fig. 3 is that the functional unit of light spot position recognition unit 202 in the display module provided by the invention is formed synoptic diagram, and said light spot position recognition unit 202 comprises: On-Screen Identification unit 301, correcting unit 302, location identification unit 303; Wherein,
On-Screen Identification unit 301 receives the screen image pickup signal of first radio interface unit 201, and identification and extracting comprises the frame of video of the luminous point that complete screen and laser beam produce in the screen image pickup signal, and sends the frame of video of extracting to correcting unit 302.
Here; Discern the laser point position and at first need discern the screen of display module, only identify the screen position after, could confirm the position of luminous point relatively; Therefore; Need from original screen image pickup signal, to identify screen and luminous point through the On-Screen Identification unit earlier,, then abandon this frame of video if unidentifiedly from current video frame go out screen and luminous point.Wherein, The algorithm of identification can have a variety of; For example: earlier frame of video is carried out noise reduction process, judge whether comprise complete screen shape in the video image through image matching technology then, if comprise; Then further judge the laser spot that in screen, whether comprises Gao Liang, then explained and discern successfully if not only comprised complete screen shape but also comprised high light laser luminous point.
The functional unit of painting canvas processing unit 203 is formed structural representation in the display module that Fig. 4 provides for the embodiment of the invention, and this painting canvas processing unit comprises: luminescent spot track processing unit 401, track storage unit 402, painting canvas output unit 403; Wherein,
Luminescent spot track processing unit 401 receives the positional information of luminous point on screen that light spot position recognition unit 202 is exported, and continuous luminous point is synthesized the luminescent spot track packet memory in track storage unit 402;
Track storage unit 402 is stored all luminescent spot tracks and is divided into groups;
Painting canvas output unit 403 divides into groups the luminescent spot track in the track storage unit 402 to play up on the internal memory painting canvas, and the painting canvas vision signal is exported to video signal processing unit 204.
Here, said luminescent spot track divides into groups to be meant that the laser emission element 112 of remote control module 110 begins from emission of lasering beam, and the set of the luminous point that setting-out is produced in the single job process of closing laser beam on screen is called a track and divides into groups.
The Elementary Function of remote control module 110 is formed structural representation in the display device that Fig. 5 provides for the embodiment of the invention, and said remote controller module comprises: laser emission element 112, image unit 111, second radio interface unit 503, switch key input block 504; Wherein,
Switch key input block 504; Be used to control opening and closing laser emission element 112; Laser emission element 112 emission of lasering beam are in the screen scope of display module 100; The screen of 111 pairs of display modules of image unit is made a video recording and is sent the screen image pickup signal to second radio interface unit 503, the second radio interface unit 503 and sends the screen image pickup signal to first radio interface unit 201.
Further, said remote controller module also comprises: wipe key-press input unit 505, wipe key-press input unit 505 output erase signals, erase signal sends first radio interface unit 201 to through second radio interface unit 503; Accordingly; Track storage unit 402 in the painting canvas processing unit 203 also is used to receive the erase signal that first radio interface unit 201 transmits with painting canvas output unit 403; After first radio interface unit 201 receives erase signal; Send erase signal to track storage unit 402 and painting canvas output unit 403, the luminescent spot track that is used for emptying the internal memory painting canvas and removing track storage unit 402 divides into groups.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (7)
1. a display device is characterized in that, said display device comprises:
Receive first radio interface unit of screen image pickup signal through wireless mode;
The light spot position recognition unit of the position of identification laser spot on screen from the screen image pickup signal;
Be responsible for the painting canvas processing unit of synthetic luminescent spot track;
Stack painting canvas vision signal and from the video signal processing unit of the vision signal of video signal source;
The screen display unit that links to each other with video signal processing unit;
Wherein, said light spot position recognition unit one end links to each other with said first radio interface unit, and the other end links to each other with said painting canvas processing unit; The said painting canvas processing unit other end links to each other with said video signal processing unit.
2. display device according to claim 1 is characterized in that, said light spot position recognition unit comprises:
Identification comprises the On-Screen Identification unit of the frame of video of complete screen and laser spot, links to each other with first radio interface unit;
Correcting unit to frame of video is proofreaied and correct links to each other with the On-Screen Identification unit;
Calculate the location identification unit of laser spot, link to each other with the painting canvas processing unit with correcting unit respectively in the screen physical location.
3. display device according to claim 2 is characterized in that, said painting canvas processing unit comprises:
The track storage unit;
Luminescent spot track processing unit according to the synthetic luminescent spot track in the position of laser spot on screen divides into groups links to each other with the track storage unit;
The painting canvas output unit that the output luminescent spot track divides into groups on the internal memory painting canvas links to each other with track storage unit, video signal processing unit respectively.
4. display device according to claim 1 is characterized in that said display device also comprises remote control module, and said remote controller module comprises:
Second radio interface unit links to each other with first radio interface unit through wireless mode;
Laser emission element to screen emission laser beam;
The switch key input block of control opening and closing laser emission element links to each other with laser emission element;
Image unit to screen is made a video recording links to each other with second radio interface unit.
5. display device according to claim 4 is characterized in that, said remote controller module also comprises: produce the key-press input unit of wiping of erase signal, link to each other with second radio interface unit.
6. according to claim 1 or 5 described display device; It is characterized in that; Said painting canvas unit also comprises: empty the internal memory painting canvas and remove the erase unit that luminescent spot track divides into groups in the track storage unit, erase unit links to each other with first radio interface unit, track storage unit and painting canvas output unit respectively.
7. display device according to claim 4 is characterized in that, said first radio interface unit and second radio interface unit are blue tooth interface or Wi-Fi wireless transmission protocol interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110075808.2A CN102707839B (en) | 2011-03-28 | 2011-03-28 | A kind of display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110075808.2A CN102707839B (en) | 2011-03-28 | 2011-03-28 | A kind of display device |
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| Publication Number | Publication Date |
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| CN102707839A true CN102707839A (en) | 2012-10-03 |
| CN102707839B CN102707839B (en) | 2015-08-26 |
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| CN201110075808.2A Active CN102707839B (en) | 2011-03-28 | 2011-03-28 | A kind of display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104346126A (en) * | 2014-10-31 | 2015-02-11 | 京东方科技集团股份有限公司 | Image and mobile light spot real-time display method as well as image display method and system |
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| CN2854700Y (en) * | 2005-08-26 | 2007-01-03 | 李哲 | Radio filmslide player based on embedded system |
| CN101227553A (en) * | 2008-01-25 | 2008-07-23 | 三星电子（中国）研发中心 | Method of direct screen writing for television system distant end |
| CN102073395A (en) * | 2011-02-25 | 2011-05-25 | 上海交通大学 | Wireless laser pen interaction system based on field programmable gate array (FPGA) |
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2011
- 2011-03-28 CN CN201110075808.2A patent/CN102707839B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854700Y (en) * | 2005-08-26 | 2007-01-03 | 李哲 | Radio filmslide player based on embedded system |
| CN101227553A (en) * | 2008-01-25 | 2008-07-23 | 三星电子（中国）研发中心 | Method of direct screen writing for television system distant end |
| CN102073395A (en) * | 2011-02-25 | 2011-05-25 | 上海交通大学 | Wireless laser pen interaction system based on field programmable gate array (FPGA) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104346126A (en) * | 2014-10-31 | 2015-02-11 | 京东方科技集团股份有限公司 | Image and mobile light spot real-time display method as well as image display method and system |
| CN104346126B (en) * | 2014-10-31 | 2017-04-05 | 京东方科技集团股份有限公司 | Method, method for displaying image and system that image is shown in real time with mobile spot |
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| Publication number | Publication date |
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| CN102707839B (en) | 2015-08-26 |
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