CN201378310Y - Touch-sensitive display screen frame and system based on infrared videography - Google Patents
Touch-sensitive display screen frame and system based on infrared videography Download PDFInfo
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- CN201378310Y CN201378310Y CN200920052916U CN200920052916U CN201378310Y CN 201378310 Y CN201378310 Y CN 201378310Y CN 200920052916 U CN200920052916 U CN 200920052916U CN 200920052916 U CN200920052916 U CN 200920052916U CN 201378310 Y CN201378310 Y CN 201378310Y
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- 238000000034 method Methods 0.000 claims description 7
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- 230000004304 visual acuity Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010835 comparative analysis Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
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Abstract
The embodiment of the utility model discloses a touch-sensitive display screen frame and a system based on infrared videography. The system thereof comprises a computer, a touch-sensitive display screen, and an infrared image pick-up device and a control circuit board which are mounted on a touch-sensitive display screen frame, wherein, the infrared image pick-up device comprises two high-resolution infrared cameras respectively mounted in the two corners on the same side of one frame edge of the touch-sensitive display screen frame, infrared transmitting tubes positioned at the top parts or the side edges of the infrared cameras and infrared reflective strips arranged inside the other three frame edges of the touch-sensitive display screen; and the four touch-sensitive display screen frame edges are movably connected, and can be detached from the touch-sensitive display screen or can be folded. The touch-sensitive display screen frame can be flexibly configured independently, and the touch-sensitive system can enhance the system resolution factor and the calculating precision of touch recognition point coordinates.
Description
Technical field
The utility model relates to computing machine input field, is specifically related to a kind of touch display screen frame based on infrared pick-up, system.
Background technology
At present, touch-screen system can be divided into five basic kind: vector pressure sensing technology touch-screen, resistive technologies touch-screen, capacitance technology touch-screen, infrared technology touch-screen, surface acoustic wave technique touch-screen.Traditional infrared technology touch-screen is made of infrared receiver that is contained in screen outer-border and infrared reflecting bar, system is by the emission infrared light, after the special material reflection, the realtime graphic on the infrared reflective material, by video camera imaging on cmos sensor, can stop infrared reflection on this aspect as any touch object, the light and shade of infrared pick-up head record infrared light changes waveform, carry out the Wave data analysis by computing machine, calculate the coordinate position of touch point, and the corresponding cursor that shows of control carries out touch operation.
Existing touch system infrared pick-up head volume based on infrared pick-up is big, pixel is not high, is subjected to the interference of visible light and dust easily; And the frame and the display touch screen that are provided with infrared receiver or infrared reflecting bar fixedly are injection-moulded in together, can not separate, with display integral production and sale, its frame structure complexity, inconvenience is installed and is adjusted, and disassembling, assembling and replacing keeps in repair wherein bad frame separately.The camera volume of existing touch system is big in addition, pixel is not high, and data processing and sample rate are slow, touch point coordinate Calculation out of true.
Summary of the invention
The utility model provides a kind of touch display screen frame and system based on infrared pick-up, its system has flexible connection, the touch display screen frame of detachable or folding band high resolving power infrared pick-up device, and improved system data and handled and sample rate.
A kind of touch display screen frame that the utility model provides based on infrared pick-up, comprise the infrared pick-up device, the control circuit board that are contained on the described touch display screen frame, external output interface is arranged on the described control circuit board by line and computing machine swap data; Described four touch display screen frames adopt and flexibly connect, and can be from described touch display screen dismounting or folding.
Further, described infrared pick-up device comprises two high resolving power infrared pick-up heads that are contained in two jiaos of frame homonymies of described touch display screen respectively, be placed on the infrared transmitting tube of described infrared pick-up head or side, and the infrared reflecting bar that is arranged at other three scuncheons of described touch display screen.
Further, described four touch display screen frames are the telescopic frame structure, can be according to described touch display screen size adjustment frame length.
The utility model also provides a kind of touch system based on infrared pick-up, comprise computing machine, touch display screen, and be contained in infrared pick-up device, control circuit board on the described touch display screen frame, external output interface is arranged by line and computing machine swap data on the wherein said control circuit board; Described infrared pick-up device comprises two high resolving power infrared pick-up heads that are contained in two jiaos of frame homonymies of described touch display screen respectively, be placed on the infrared transmitting tube of described infrared pick-up head or side, and the infrared reflecting bar that is arranged at other three scuncheons of described touch display screen; Described four touch display screen frames adopt and flexibly connect, and can be from described touch display screen dismounting or folding;
Described control circuit board sends the infrared reflecting image change data that described infrared pick-up head collects to computing machine, carry out mutual comparative analysis, determine the touch recognition point coordinate, control cursor operations corresponding on the described touch display screen with described touch recognition point.
Further, described control circuit board is by photosignal modular converter, view data process chip, image data memory, data and control output interface, connect to form successively such as USB interface, described control circuit board one end is connected with described infrared pick-up device, and the other end is connected with computing machine with touch display screen.Described control circuit board adopts between high-speed low-power-consumption logical block chip and the computing machine by high speed USB data line or high frame per second sensor transmissions data.
Implement a kind of touch display screen frame that the utility model embodiment provides based on infrared pick-up, owing to adopt light and handy, the flexible connection of volume, and the frame of detachable or folding band infrared pick-up device, control circuit board design, not only convenient transportation installation and independent repair and replacement are a bad frame wherein, but also can produce, sell the frame that is provided with infrared pick-up device, control circuit board separately, be installed on the common display screen, load relevant control program, make it become touch display screen.As a kind of improved procedure, described four touch display screen frames are the telescopic frame structure, can be according to described touch display screen size adjustment frame length, and the touch display screen of coupling different size.
The touch system that the utility model embodiment provides has also that volume is little, the camera of high pixel, and adopt and improve the triangulation of calculating touch recognition point position precision, for the bigger contact of area, carry out abstract comparative analysis, thereby obtain the higher touch recognition point screen position of precision, control corresponding light target moves, and makes touch control more accurate.Adopt simultaneously and pass through high speed USB data line and high frame per second sensor transmissions data between high-speed low-power-consumption logical block chip and the computing machine, improved data processing and sample rate.
Description of drawings
Fig. 1 is a kind of touch system structural representation based on infrared pick-up that the utility model embodiment provides;
Fig. 2 is the infrared pick-up apparatus structure synoptic diagram that the utility model embodiment provides;
Fig. 3 is the control circuit board structural representation that the utility model embodiment provides;
Fig. 4 is the touch point triangulation synoptic diagram that the utility model embodiment provides;
The image that the touch-screen infrared light brightness that system of the present invention took when Fig. 5 was no touch changes;
Fig. 6 is the image that the touch-screen infrared light brightness variation that system of the present invention takes when touching is arranged;
Embodiment
For making the present invention easier to understand, the present invention is further elaborated below in conjunction with accompanying drawing, but the embodiment in the accompanying drawing does not constitute any limitation of the invention.
As shown in Figure 1, a kind of touch system based on infrared pick-up that the utility model embodiment provides comprises computing machine 10, touch display screen 20, is contained in infrared pick-up device 30, control circuit board 40 on the described touch display screen frame.Described control circuit board 40 1 ends are connected with described infrared pick-up device 30, and the other end is connected with computing machine 10 with touch display screen 20.
As shown in Figure 2, described infrared pick-up device comprises two high resolving power infrared pick-up heads 301 that are contained in two jiaos of frame of touch display screen 50 homonymies respectively, the infrared reflecting bar 303 that is placed on the infrared transmitting tube 302 of infrared pick-up head or side and is arranged at other three frame 50 inboards of described touch display screen.Described four touch display screen frames adopt and flexibly connect, and such as can adopting screw to be rotatably connected, or bayonet socket connects, or joggle connects, or magnetic connects.Adopt dismountable connected mode between described four edges frame and the touch display screen,, viscosity fixedly connected such as screw connects, magnetic connects or the like, and described four touch display screen frames 50 can or be folded from described touch display screen 20 dismountings.
As a kind of improved embodiment, described four touch display screen frames are the telescopic frame structure, can be according to described touch display screen size adjustment frame length.Described infrared pick-up head adopts high pixel and high-precision camera, and camera lens is provided with dustproof optical filter.For preventing that other visible light and dust from influencing the infrared reflection precision, also be provided with dustproof optical filtering bar on the described infrared reflecting bar surface.
As shown in Figure 3, described control circuit board comprises photosignal modular converter 401, view data process chip 402, image data memory 403, data and the control output interface 404 that connects successively.Described control circuit board adopts between high-speed low-power-consumption logical block chip and the computing machine by high speed USB data form and high frame per second sensor transmissions data.This control circuit board is arranged in the back side or cavity of any described touch display screen frame, also can be arranged in the main frame, by data and control interface and computing machine line, such as USB interface.
The touch system that the utility model embodiment provides, owing to adopt light and handy, the flexible connection of volume, and detachable or folding touch display screen frame design, not only convenient transportation installation and independent repair and replacement are a bad frame wherein, but also can produce, sell the frame that is provided with infrared pick-up device, control circuit board separately, be installed on the common display screen, load relevant control program, make it become touch display screen.As a kind of improved procedure, described four touch display screen frames are the telescopic frame structure, can be according to described touch display screen size adjustment frame length, and the touch display screen of coupling different size.
Above-mentioned touch system has also that volume is little, the camera of high pixel, and adopts and improve the interpolation algorithm that calculates touch recognition point degree of accuracy, allow touch control more accurate.Adopt simultaneously between high-speed low-power-consumption logical block chip and the computing machine by high speed USB and high frame per second sensor transmissions data, improved data processing and sample rate.
Above-mentioned touch system realizes that principle is the retro-reflective properties according to infrared light, utilizes the infrared reflecting frame, and the light that infrared emission tube is sent is approximate to be returned by former road, and takes the infrared ray light intensity figure that returns by infrared camera.As touch, can weaken to touch and block the infrared light intensity that a little returns, the data that the infrared light brightness light and shade that described control circuit board collects the infrared pick-up head changes carry out sending Computer Analysis to after the processing such as conversion of signals, storage, contrast no touch and the infrared brightness waveform image that touch is arranged are used the triangulation program and/or are determined to touch the coordinate that blocks a little in conjunction with the interpolation algorithm program.An infrared camera on frame one side angle can be determined a ray through the touch point in theory, two cameras just can be according to blocking the some position on screen through touching definite touch of two ray joinings of blocking a little simultaneously, calculate coordinate, and then control the operation of corresponding cursor on the described touch display screen.
Above-mentioned touch system can calculate the coordinate position of touch point by the triangulation program in the computing machine, described triangulation principle as shown in Figure 4, W represents the touch-screen width among the figure, is equivalent to abscissa axis, and H represents the touch-screen width, be equivalent to axis of ordinates, touch is blocked a little coordinate for (x y), touches on the screen when blocking when being given mutually by the ray of left and right infrared transmitting tube emission (among the figure shown in the dotted line) respectively, made a video recording by left and right camera simultaneously, get by geometric relationship
Forming the linear equation in two unknowns group by above two formulas solves
Wherein, the angle a of two rays, b can be obtained by systematic survey, according to known W and H value, can calculate the value of L and R, and then calculates the value of touch point x and y; Perhaps two rays on frame projector distance L and the value of R can obtain by systematic survey, according to known W and H value, can calculate the value of touch point x and y.This is the coordinate Calculation of one of them touch point, in like manner can calculate the more coordinate of multiple touch points, is applied to multiple point touching.
As shown in Figure 5, during for no touch, the sectional drawing that the infrared reflecting brightness of infrared lens picked-up changes, its horizontal ordinate is the position of frame reflective spot, i.e. the coordinate of display screen X-axis, ordinate is the corresponding bright value.
As shown in Figure 6, when touch is arranged, the sectional drawing that the infrared reflecting brightness of an infrared lens picked-up changes, its horizontal ordinate is the position of frame reflective spot, i.e. the coordinate of display screen X-axis, ordinate is the corresponding bright value.Compare with Fig. 5, as seen have one section reflective waveform brightness amplitude that significant change is arranged among Fig. 6, promptly the A point has significant change to the wave-shape amplitude between the C point.
In conjunction with the image comparative analysis of 2 camera picked-ups, system has the trough point of above-mentioned one section reflective waveform of significant change can try to achieve the screen coordinate of more accurate described touch recognition point by above-mentioned triangulation to wave-shape amplitude.
Need to prove, volume is little, the camera of high pixel owing to adopt, and adopt and improve the triangulation of calculating touch recognition point position precision, for the bigger contact of area, carry out abstract comparative analysis, thereby obtain the higher touch recognition point coordinate of precision, try to achieve described touch recognition point area occupied on screen little, the position is more accurate.The triangulation that touch recognition point position precision is calculated in above-mentioned raising also may be used on not being subjected to the restriction of touch-screen particular hardware in vector pressure sensing technology touch-screen, resistive technologies touch-screen, capacitance technology touch-screen, infrared technology touch-screen, the surface acoustic wave technique touch-screen.
The above is an embodiment of the present utility model; certainly can not limit the interest field of the utility model with this; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvement, these improvement and change also are considered as protection domain of the present utility model.
Claims (10)
1, a kind of touch display screen frame based on infrared pick-up, it is characterized in that, comprise the infrared pick-up device, the control circuit board that are contained on the described touch display screen frame, external output interface is arranged on the described control circuit board by line and computing machine swap data; Described four touch display screen frames adopt and flexibly connect, and can be from described touch display screen dismounting or folding.
2, touch display screen frame according to claim 1, it is characterized in that, described infrared pick-up device comprises two high resolving power infrared pick-up heads that are contained in two jiaos of frame homonymies of described touch display screen respectively, be placed on the infrared transmitting tube of described infrared pick-up head or side, and the infrared reflecting bar that is arranged at other three scuncheons of described touch display screen.
3, touch display screen frame according to claim 1 is characterized in that, described four touch display screen frames are the telescopic frame structure, can be according to described touch display screen size adjustment frame length.
4, touch display screen frame according to claim 1 and 2 is characterized in that, described control circuit board is arranged in the back side or cavity of any described touch display screen frame.
5, touch display screen frame according to claim 1 is characterized in that, also is provided with dustproof optical filtering bar on the described infrared reflecting bar surface; Described infrared pick-up head adopts the camera of high pixel, and camera lens is provided with dustproof optical filter.
6, a kind of touch system based on infrared pick-up is characterized in that, comprises computing machine, touch display screen, and is contained in infrared pick-up device, control circuit board on the described touch display screen frame; External output interface is arranged by line and computing machine swap data on the described control circuit board, described four touch display screen frames adopt and flexibly connect, and can be from described touch display screen dismounting or folding;
Described control circuit board sends the infrared reflecting image change data that described infrared pick-up head collects to computing machine, carry out mutual comparative analysis, determine the touch recognition point coordinate, control cursor operations corresponding on the described touch display screen with described touch recognition point.
7, touch system according to claim 6, it is characterized in that, described infrared pick-up device comprises two high resolving power infrared pick-up heads that are contained in two jiaos of frame homonymies of described touch display screen respectively, be placed on the infrared transmitting tube of described infrared pick-up head or side, and the infrared reflecting bar that is arranged at other three scuncheons of described touch display screen.
8, touch system according to claim 6 is characterized in that, described four touch display screen frames are the telescopic frame structure, can be according to described touch display screen size adjustment frame length.
9, touch system according to claim 6, it is characterized in that, described control circuit board is connected to form successively by photosignal modular converter, view data process chip, image data memory, data and control output interface, described control circuit board is arranged in the back side or cavity of any described touch display screen frame, described control circuit board one end is connected with described infrared pick-up device, and the other end is connected with computing machine with described touch display screen.
According to claim 6 or 9 described touch systems, it is characterized in that 10, described control circuit board adopts between high-speed low-power-consumption logical block chip and the computing machine by high speed USB data line or high frame per second sensor transmissions data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920052916U CN201378310Y (en) | 2009-03-19 | 2009-03-19 | Touch-sensitive display screen frame and system based on infrared videography |
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| CN200920052916U CN201378310Y (en) | 2009-03-19 | 2009-03-19 | Touch-sensitive display screen frame and system based on infrared videography |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102289326A (en) * | 2011-07-07 | 2011-12-21 | 中国船舶重工集团公司第七○九研究所 | Optical multi-point touch screen device and method applicable to vibration and damp environment |
| CN102298469A (en) * | 2010-06-25 | 2011-12-28 | 林宏宇 | Portable optical touch system and method for sensing object position |
| CN102411459A (en) * | 2010-10-20 | 2012-04-11 | 松翰科技股份有限公司 | Optical Touch Module And Data Loading Method Thereof |
| CN102467295A (en) * | 2010-10-28 | 2012-05-23 | 原相科技股份有限公司 | View screen display module, display device and electronic device adopting same |
| CN102665122A (en) * | 2012-03-30 | 2012-09-12 | 四川长虹电器股份有限公司 | Television remote control device, television set and remote control method for realizing rapid positioning |
| CN103092436A (en) * | 2012-09-24 | 2013-05-08 | 深圳市海亚科技发展有限公司 | Portable optical interaction instrument |
| CN103176665A (en) * | 2011-12-21 | 2013-06-26 | 纬创资通股份有限公司 | Optical touch display device and portable optical touch device thereof |
| CN103415828A (en) * | 2011-09-30 | 2013-11-27 | 株式会社日立解决方案 | Reflection frame-equipped sheet |
| CN103902106A (en) * | 2012-12-28 | 2014-07-02 | 深鑫成光电（深圳）有限公司 | Touch module and touch device with same |
| US8773375B2 (en) | 2010-06-01 | 2014-07-08 | Cho-Yi Lin | Portable optical touch system |
| CN104252271A (en) * | 2010-06-25 | 2014-12-31 | 林卓毅 | Portable optical touch system |
| US9250749B2 (en) | 2010-06-01 | 2016-02-02 | Cho-Yi Lin | Electrical apparatus |
| US9377903B2 (en) | 2010-06-01 | 2016-06-28 | Cho-Yi Lin | Portable optical touch system |
| CN109725677A (en) * | 2017-10-31 | 2019-05-07 | 鸿富锦精密工业(武汉)有限公司 | Touch display |
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2009
- 2009-03-19 CN CN200920052916U patent/CN201378310Y/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8773375B2 (en) | 2010-06-01 | 2014-07-08 | Cho-Yi Lin | Portable optical touch system |
| US9377903B2 (en) | 2010-06-01 | 2016-06-28 | Cho-Yi Lin | Portable optical touch system |
| US9250749B2 (en) | 2010-06-01 | 2016-02-02 | Cho-Yi Lin | Electrical apparatus |
| CN102298469A (en) * | 2010-06-25 | 2011-12-28 | 林宏宇 | Portable optical touch system and method for sensing object position |
| CN104252271A (en) * | 2010-06-25 | 2014-12-31 | 林卓毅 | Portable optical touch system |
| CN102411459A (en) * | 2010-10-20 | 2012-04-11 | 松翰科技股份有限公司 | Optical Touch Module And Data Loading Method Thereof |
| CN102411459B (en) * | 2010-10-20 | 2014-02-19 | 松翰科技股份有限公司 | Optical touch module and data loading method thereof |
| CN102467295A (en) * | 2010-10-28 | 2012-05-23 | 原相科技股份有限公司 | View screen display module, display device and electronic device adopting same |
| CN102467295B (en) * | 2010-10-28 | 2014-04-02 | 原相科技股份有限公司 | View screen display module, display device and electronic device adopting same |
| CN102289326A (en) * | 2011-07-07 | 2011-12-21 | 中国船舶重工集团公司第七○九研究所 | Optical multi-point touch screen device and method applicable to vibration and damp environment |
| CN102289326B (en) * | 2011-07-07 | 2014-05-14 | 中国船舶重工集团公司第七0九研究所 | Optical multi-point touch screen device and method applicable to vibration and damp environment |
| CN103415828A (en) * | 2011-09-30 | 2013-11-27 | 株式会社日立解决方案 | Reflection frame-equipped sheet |
| CN103176665B (en) * | 2011-12-21 | 2016-01-20 | 纬创资通股份有限公司 | Optical touch display device and portable optical touch device thereof |
| CN103176665A (en) * | 2011-12-21 | 2013-06-26 | 纬创资通股份有限公司 | Optical touch display device and portable optical touch device thereof |
| CN102665122B (en) * | 2012-03-30 | 2014-12-24 | 四川长虹电器股份有限公司 | Television remote control device, television set and remote control method for realizing rapid positioning |
| CN102665122A (en) * | 2012-03-30 | 2012-09-12 | 四川长虹电器股份有限公司 | Television remote control device, television set and remote control method for realizing rapid positioning |
| CN103092436A (en) * | 2012-09-24 | 2013-05-08 | 深圳市海亚科技发展有限公司 | Portable optical interaction instrument |
| CN103902106A (en) * | 2012-12-28 | 2014-07-02 | 深鑫成光电（深圳）有限公司 | Touch module and touch device with same |
| CN109725677A (en) * | 2017-10-31 | 2019-05-07 | 鸿富锦精密工业(武汉)有限公司 | Touch display |
| CN109725677B (en) * | 2017-10-31 | 2021-10-01 | 鸿富锦精密工业(武汉)有限公司 | Touch display |
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Address after: 510663 Guangdong Province, Guangzhou high tech Industrial Development Zone, science 4, Xue Cheng Ke Zhu Road No. 192 5 floor Patentee after: Guangzhou Shiyuan Electronic Technology Co.,Ltd. Address before: 10, B building, No. 11, color road, No. 510663, Science City, Guangdong, Guangzhou Patentee before: Guangzhou Shiyuan Electronic Technology Co.,Ltd. |
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Assignee: Guangzhou Shirui Electronic Technology Company Limited. Assignor: Guangzhou Shiyuan Electronic Technology Co.,Ltd. Contract record no.: 2010440000876 Denomination of utility model: Touch-sensitive display screen frame and system based on infrared videography Granted publication date: 20100106 License type: Exclusive License Record date: 20100706 |
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Address after: 510663 Guangdong Province, Guangzhou high tech Industrial Development Zone, science 4, Xue Cheng Ke Zhu Road No. 192 5 floor Patentee after: Guangzhou Shiyuan Electronic Technology Company Limited Address before: 510663 Guangdong Province, Guangzhou high tech Industrial Development Zone, science 4, Xue Cheng Ke Zhu Road No. 192 5 floor Patentee before: Guangzhou Shiyuan Electronic Technology Co.,Ltd. |
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