CN102799320B - Spliced ultrasonic touch screen - Google Patents
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- CN102799320B CN102799320B CN201110135030.XA CN201110135030A CN102799320B CN 102799320 B CN102799320 B CN 102799320B CN 201110135030 A CN201110135030 A CN 201110135030A CN 102799320 B CN102799320 B CN 102799320B
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Abstract
The present invention relates to electronic devices, and particularly to a touch screen. The spliced ultrasonic touch screen comprises a touch pad, an ultrasonic receiver, a touch pen, a signal receiving module and a microprocessor system, wherein a touch area of the touch pad is divided into at least four touch signal receiving areas, and the at least four touch signal receiving areas are sequentially arranged into at least two rows; the at least four touch signal receiving areas are provided with ultrasonic receivers, and two ultrasonic transducers of the ultrasonic receivers are respectively arranged on the same side of the touch signal receiving areas; the ultrasonic receivers arranged in the touch signal receiving areas in the same row are positioned on the same straight line, and the ultrasonic receivers arranged in the touch signal receiving areas in the two adjacent rows are symmetrically arranged according to the adjacent edges. Due to the adoption of the technical scheme, the touch screen is suitable for the touch of an ultra-long touch screen, a spliced touch screen, an ultra-large touch screen and the like, and has the advantages of simple structure, low cost and the like.
Description
Technical field
The present invention relates to electronic equipment, particularly relate to a kind of touch screen.
Background technology
Growing along with multimedia technology, touch-screen applications is more and more extensive, as telecommunication bureau, bank,
The information inquiry in street corner, city, Industry Control, multimedia teaching etc..Touch screen has sturdy and durable, anti-
Answer that speed is fast, save space, be prone to the advantages such as exchange.Utilize this technology, if user finger
Or other touch parts touch the picture and text on display screen lightly and can be achieved with operation, so that man-machine interaction is more
Bluntly, user is greatly facilitated.
Existing touch screen mainly uses infrared touch panel.Infrared touch panel is relative to other touch screens, tool
There are the series of advantages such as stable performance, capacity of resisting disturbance are strong, life-span length, precision are high.Almost with overwhelming
Advantage, gradually capture the market of other touch screens.But the infrared emitting of infrared touch panel and accept energy
Power is limited, the optical signal between the distant infrared transmitting tube in correlation relation and infrared receiving tube,
There may be bigger decay, be unfavorable for steady operation, be not suitable for widescreen, overlength screen, super large screen or
The touch of mosaic screen.
It addition, ultrasonic technology is also widely used on touch-control product, existing ultrasonic touch screen
Relatively common technology is provided with ultrasonic receiver 2, infrared with reference to Fig. 1, the generally avris at touch pad 1
Receiving device 3, ultrasonic receiver 2 includes two ultrasonic transducers, and felt pen is provided with ultrasound wave and sends out
Injection device, infrared launcher, when felt pen touches touch pad 1, produce touch point 4, and felt pen is permissible
Send ultrasonic signal, ultrasonic receiver receive can calculate after the ultrasonic signal of felt pen tactile
Touch pen and distance A of two ultrasonic transducers, B, and distance c between two ultrasonic transducers is
Know, so that it is determined that the position that touch point 4 is on touch screen 1, with one of them ultrasonic transducer for sitting
Mark initial point, then touch point coordinate on touch screen 1 be (x, y).But ultrasonic touch screen there is also
Similar technical problem above-mentioned to infrared touch panel, is not suitable for widescreen, overlength screen, super large screen or splicing
The touch of screen.
Summary of the invention
It is an object of the invention to provide a kind of splicing ultrasonic touch screen, to solve above-mentioned technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
Splicing ultrasonic touch screen, including touch pad, ultrasonic receiver, felt pen, described ultrasound wave
Receptor includes that two are separately positioned on the ultrasonic transducer of described touch pad avris, an infrared receiver dress
Putting, two described ultrasonic transducers, described infrared receiving devices connect a signal receiving module respectively,
Described signal receiving module connects a microprocessor system, described felt pen include one with described ultrasound wave
The matching used ultrasonic transmission device of transducer, one matching used with described infrared receiving device infrared
Discharger, the touch area of described touch pad is divided at least four touch signal receiving area, and at least four
Individual touch signal receiving area is arranged in order at least two rows；
Touch signal receiving area described at least four is equipped with described ultrasonic receiver, described ultrasound wave
Two ultrasonic transducers of receptor are separately positioned on the same avris of described touch signal receiving area；
The described ultrasonic receiver that described touch signal receiving area in same row is arranged is positioned at always
On line, the described ultrasonic receiver that the described touch signal receiving area of adjacent two rows is arranged is according to adjacent
The straight line at place, limit is symmetrical arranged；
Described felt pen touches touch pad, forms touch point, and described microprocessor system touches letter by one
In number receiving area in two ultrasonic transducers of ultrasonic receiver and the distance of described touch point
Two ultrasonic transducers of ultrasonic receiver and institute in distance, with another touch signal receiving area
The longest distance stated in the distance of touch point compares, and is considered as the ultrasound wave corresponding to beeline and receives
The ultrasonic signal that device receives, for receiving signal, is considered as touch point and is positioned at described ultrasonic receiver place
Touch signal receiving area.
After using above-mentioned method for designing, it is not necessary to consider owing to touch pad is too big, ultrasonic receiver cannot connect
The problem receiving remote ultrasonic transmission, the present invention is especially suitable for overlength, super large touch pad or spelling
The touch of contact template.
On described touch pad, at least two described ultrasonic receivers receive described ultrasonic signal, institute
The ultrasonic signal received is sent to described by two ultrasonic transducers respectively that state ultrasonic receiver
Signal receiving module, described ultrasonic signal is sent to described microprocessor by described signal receiving module
System, the most described microprocessor system receives at least four ultrasonic signal；Described microprocessor
First ultrasonic signal described at least four is grouped by system, and two of a ultrasonic receiver surpass
The ultrasonic signal that acoustic wave transducer is launched is one group；
Described microprocessor system first processes two ultrasonic signals that a ultrasonic receiver receives, meter
Calculate the distance between touch point and two ultrasonic transducers of a ultrasonic receiver, described miniature place
Reason device system judges a longest distance；Described microprocessor system reprocesses another ultrasonic receiver
Two ultrasonic signals received, calculate the touch point two ultrasound wave apart from another ultrasonic receiver
Distance between transducer, described microprocessor system judges another longest distance；Described miniature place
One longest distance is compared by reason device system with another longest distance, is considered as surpassing corresponding to short distance
The ultrasonic signal that acoustic receiver receives, for receiving signal, is considered as touch point and is positioned at the reception of described ultrasound wave
The touch signal receiving area at device place；
Described microprocessor system receives the described super of the described touch signal receiving area at place, touch point
The infrared signal that two ultrasonic signals of acoustic receiver transmission, infrared receiving device send, obtains
Touch point positional information in described touch signal receiving area, according to described touch signal region in institute
State the position on touch pad, determine described touch point positional information on described touch pad.
Two ultrasonic transducers of described ultrasonic receiver are arranged on the rear of described touch pad.This
Structure is particularly suitable for the situation that described touch pad is transparent configuration, on the one hand can improve visual effect, separately
On the one hand can protect ultrasonic receiver by touch pad itself, so as not to ultrasonic receiver damage or
By external interference.
In the case of described touch pad is transparent configuration, two ultrasonic waves of described ultrasonic receiver
Energy device can be separately positioned on the edge of described touch pad, is conducive to making more compact structure.Described ultrasonic
Two ultrasonic transducers of ripple receptor can be attached to the edge of described touch pad.Described ultrasound wave connects
Two ultrasonic transducers receiving device can also be directly embedded into inside described touch pad edge.Like this light
The utilization rate in source will be higher, and structure is more succinct.
Described touch pad uses rectangle, it is preferred to use square.The touch signal that described touch pad is divided into connects
Receipts region is rectangle, preferably square.
Two ultrasonic transducers in described touch signal receiving area are separately positioned on described touch signal
The edge of receiving area；
Described microprocessor system is at the straight line calculated between described touch point and a ultrasonic transducer
Distance after, first judge that whether this distance is more than, the touch signal at described ultrasonic transducer place receives
Cornerwise length in region, such as larger than, then microprocessor system is considered as described touch point not described
In touch signal receiving area, no longer carry out the follow-up judgement to this touch signal receiving area.
All there is ultrasonic transducer in two adjacent adjacent edges in touch signal receiving area, then altogether
With a ultrasonic transducer；
Infrared receiving device is all there is, then altogether on the adjacent edge of two adjacent touch signal receiving areas
With an infrared receiving device.To reduce the number of ultrasonic transducer, reduce cost.
Described microprocessor system calculates two ultrasonic transducers of touch point and ultrasonic receiver
Between distance equal time, it is longest distance that described microprocessor system is considered as described distance.
When one longest distance and another longest distance are compared by microprocessor system, have one the longest
Distance is equal with another longest distance, is considered as straight line institute in a longest distance or another longest distance right
The ultrasonic signal that the ultrasonic receiver answered receives, for receiving signal, is considered as touch point and is positioned at described ultrasonic
The touch signal receiving area at ripple receptor place.
Described microprocessor system receives at least two batches of ultrasonic signals within the setting time, and described
The setting time launches the interval time of ultrasonic signal less than described ultrasonic transmission device, the most described miniature
Processor system is considered as on described touch pad there is at least two touch points；
The every batch of described ultrasonic signal of described microprocessor system time-division processing, determines at least two
Described touch point positional information on described touch pad.
Beneficial effect: owing to using technique scheme, the present invention is applicable to overlength touch screen, splicing is touched
Touch the touch of screen, super large touch screen etc., there is simple in construction, the advantage such as with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of background technology ultrasonic touch screen；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is the another kind of structural representation of the present invention；
Fig. 4 is the circuit diagram of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be readily apparent from
Solve, the present invention is expanded on further below in conjunction with being specifically illustrating.
With reference to Fig. 2, Fig. 3, Fig. 4, splice ultrasonic touch screen, receive including touch pad 1, ultrasound wave
Device 2, felt pen, ultrasonic receiver 2 includes two ultrasonic waves being separately positioned on touch pad 1 avris
Energy device 21, infrared receiving device 3, two ultrasonic transducers 21, infrared receiving devices 3 connect respectively
Connecing a signal receiving module 5, signal receiving module 5 connects a microprocessor system 6.Felt pen includes
One ultrasonic transmission device 81, matching used with ultrasonic transducer 21 is joined with infrared receiving device 3
The infrared launcher 82 that set uses, the touch area of touch pad 1 is divided at least four touch signal and receives
Region 11, at least four touch signal receiving area 11 is arranged in order at least two rows.
With reference to Fig. 2, at least four touch signal receiving area 11 is equipped with ultrasonic receiver 2, ultrasonic
Two ultrasonic transducers 21 of ripple receptor 2 are separately positioned on the same of touch signal receiving area 11
Avris.The ultrasonic receiver 2 that touch signal receiving area 11 in same row is arranged is positioned at same straight line
On, the ultrasonic receiver 2 that the touch signal receiving area 11 of adjacent two rows is arranged is relative according to adjacent edge
Arrange.Felt pen touches touch pad 1, forms touch point 4, and microprocessor system 6 is by a touch signal
In receiving area 11 two ultrasonic transducers 21 of ultrasonic receiver 2 with in the distance of touch point 4
Longest distance, with two ultrasonic waves of ultrasonic receiver 2 in another touch signal receiving area 11
Can compare with the longest distance in the distance of touch point 4 by device 21, be considered as surpassing corresponding to beeline
The ultrasonic signal that acoustic receiver 2 receives, for receiving signal, is considered as touch point 4 and is positioned at ultrasound wave reception
The touch signal receiving area 11 at device 2 place.
When being embodied as, microprocessor system adopts the position determining touch point 4 with the following method: touch
On plate 1, at least two ultrasonic receivers 2 receive ultrasonic signal, the two of ultrasonic receiver 2
The ultrasonic signal received is sent to signal receiving module 5, signal by individual ultrasonic transducer 21 respectively
Ultrasonic signal is sent to microprocessor system 6 by receiver module 5, then microprocessor system 6 receives
To at least four ultrasonic signal.First at least four ultrasonic signal is carried out by microprocessor system 6
Packet, the ultrasonic signal that two ultrasonic transducers 21 of a ultrasonic receiver 2 are launched is one group.
Microprocessor system 6 first processes two ultrasonic signals that a ultrasonic receiver 2 receives, meter
Calculate the distance of straight line between touch point 4 and two ultrasonic transducers 21 of a ultrasonic receiver 2,
Microprocessor system 6 judges a longest distance.Microprocessor system 6 reprocesses another ultrasound wave
Two ultrasonic signals that receptor 2 receives, calculate touch point 4 apart from another ultrasonic receiver 2
Two ultrasonic transducers 21 between distance, microprocessor system 6 judges another longest distance.
One longest distance is compared by microprocessor system 6 with another longest distance, is considered as short straight line institute
The ultrasonic signal that corresponding ultrasonic receiver 2 receives, for receiving signal, is considered as touch point 4 and is positioned at super
The touch signal receiving area 11 at acoustic receiver 2 place.Microprocessor system 6 is according to touch point 4
It is infrared that two ultrasonic signals of ultrasonic receiver 2 transmission at place, infrared receiving device 3 send
Line signal, obtains the touch point 4 positional information in touch signal receiving area 11, according to touch signal
Position on touch pad 1, the region, determines the touch point 4 positional information on touch pad 1.In employing
After stating method for designing, it is not necessary to consider owing to touch pad 1 is too big, ultrasonic receiver 2 cannot receive far
The problem of the ultrasonic transmission of distance, the present invention is especially suitable for overlength, super large touch pad 1 or splicing and touches
The touch of template 1.User can divide several touch signals receive according to the size of touch pad 1
Region 11.
Two ultrasonic transducers 21 of ultrasonic receiver 2 are arranged on the rear of touch pad 1.This knot
Structure is particularly suitable for the situation that touch pad 1 is transparent configuration, on the one hand can improve visual effect, the opposing party
Face can by touch pad 1 protection ultrasonic receiver 2 itself, so as not to ultrasonic receiver 2 damage or
By external interference.In the case of touch pad 1 is transparent configuration, two of ultrasonic receiver 2 surpass
Acoustic wave transducer 21 can be separately positioned on the edge of touch pad 1, is conducive to making more compact structure.Super
Two ultrasonic transducers 21 of acoustic receiver 2 can be attached to the edge of touch pad 1.Ultrasound wave connects
Two ultrasonic transducers 21 receiving device 2 can also be directly embedded into inside touch pad 1 edge.Like this
The utilization rate of light source will be higher, and structure is more succinct.Touch pad 1 uses rectangle, it is preferred to use square.
The touch signal receiving area 11 that touch pad 1 is divided into is rectangle, preferably square.
With reference to Fig. 3, two ultrasonic transducers 21 in touch signal receiving area 11 are separately positioned on tactile
Touch the edge of signal receiving area 11；Microprocessor system 6 calculating touch point 4 with one surpass
After the distance of the straight line between acoustic wave transducer 21, first judge whether this distance is more than, ultrasonic transducer
Cornerwise length of the touch signal receiving area 11 at 21 places, such as larger than, then microprocessor system
6 are considered as touch point 4 not in touch signal receiving area 11, no longer carry out this touch signal region 11
Follow-up judgement.In order to reduce the number of ultrasonic transducer 21, reduce cost, two adjacent touches
In the case of the adjacent edge in signal receiving area 11 all exists ultrasonic transducer 21, share one and surpass
Acoustic wave transducer 21.All there is infrared receiver dress in the adjacent edge of two adjacent touch signal receiving areas 11
Put 3, then share an infrared receiving device.It is positioned at a touch signal reception when there is touch point 4
During the middle part of two ultrasonic transducers 21 in region 11, use following determination methods: microprocessor
System 6 calculates the distance phase between touch point and two ultrasonic transducers 21 of ultrasonic receiver 2
Deng time, microprocessor system 6 is considered as this distance for longest distance.It is positioned at two phases when there is touch point
Time at the adjacent edge of adjacent touch signal receiving area 11, use following determination methods: microprocessor system
One longest distance is compared with another longest distance, there is a longest distance and another longest distance phase
Deng time, be considered as in a longest distance or another longest distance arbitrarily ultrasound wave corresponding to straight line and receive
The ultrasonic signal that device receives, for receiving signal, is considered as touch point and is positioned at the touch at ultrasonic receiver place
Signal receiving area.
Microprocessor system 6 receives at least two batches of ultrasonic signals within the setting time, and when setting
Between launch interval time of ultrasonic signal, then microprocessor system 6 less than ultrasonic transmission device 81
It is considered as on touch pad 1 there is at least two touch points 4.Microprocessor system 6 time-division processing is the most a collection of
Ultrasonic signal, determine at least two touch point 4 positional information on touch pad 1.Miniature process
First device system 6 processes a collection of ultrasonic signal, determines the positional information of a touch point, microprocessor
When system 6 is received again by a collection of ultrasonic signal within the setting time, process, determine that another touches
The positional information of point.When microprocessor system 6 receives many batches of ultrasonic signals within the setting time,
Positional information to multiple touch points.
Embodiment one: with reference to Fig. 2, felt pen touches touch pad 1, forms touch point 4, ultrasonic wave transducer
Device 2b, ultrasonic transducer 2c, ultrasonic transducer 2d, ultrasonic transducer 2e, ultrasonic transducer
2f, ultrasonic transducer 2i, ultrasonic transducer 2j all receive the ultrasonic signal that felt pen sends, many
Individual ultrasonic receiver 2 is sent to microprocessor system after all ultrasound information being processed.Miniature
Ultrasonic transducer is grouped by processor system: 1) ultrasonic transducer 2b should be with ultrasonic wave transducer
Device 2a mono-group, but ultrasonic transducer 2a does not receives ultrasonic signal, then cast out ultrasonic transducer
2b, need not judge, without by straight with other for the distance straight line b of touch point 4 to ultrasonic transducer 2b
Line compares.2) ultrasonic transducer 2c and ultrasonic transducer 2d mono-group, calculates touch point 4
Distance straight line c, straight line d between two ultrasonic transducers a, it is judged that longest distance is straight line c.
3) ultrasonic transducer 2e and ultrasonic transducer 2f mono-group, calculates 4 to two, touch point ultrasound wave
Distance straight line e between transducer, straight line f, it is judged that another longest distance is straight line f.4) miniature place
Straight line c is compared by reason device system with straight line f, it is judged that straight line c is shorter.5) ultrasonic transducer
2i and ultrasonic transducer 2j mono-group, calculates the distance between the ultrasonic transducer of 4 to two, touch point
Straight line i, straight line j, it is judged that another longest distance is straight line i.6) microprocessor system is by straight line c
Compare with straight line i, it is judged that straight line c is shorter.Then think the ultrasonic receiver corresponding to straight line c
The ultrasonic signal received, for receiving signal, is considered as touch point 4 and is positioned at ultrasonic transducer 2c and ultrasound wave
In the touch signal receiving area 11 at transducer 2d place.
Embodiment two: with reference to Fig. 3, felt pen touches touch pad 1, forms touch point 4, ultrasonic wave transducer
Device 2a, ultrasonic transducer 2b, ultrasonic transducer 2c, ultrasonic transducer 2d, ultrasonic transducer
2f, ultrasonic transducer 2g all receive the ultrasonic signal that felt pen sends, multiple ultrasonic receivers 2
Microprocessor system it is sent to after all ultrasound information being processed.Microprocessor system is by ultrasonic
Wave transducer is grouped: 1) ultrasonic transducer 2a and ultrasonic transducer 2b mono-group, calculates tactile
Touching distance straight line a, the straight line b between a little 4 to two ultrasonic transducers, straight line a connects with touch signal
The diagonal receiving region 11 is longer, then need not carry out follow-up judgement.2) ultrasonic transducer 2b is with ultrasonic
Wave transducer 2c mono-group, calculate the distance straight line b between the ultrasonic transducer of 4 to two, touch point,
Straight line c a, it is judged that longest distance is straight line b.3) ultrasonic transducer 2c and ultrasonic transducer 2d
One group, calculate distance straight line c, the straight line d between the ultrasonic transducer of 4 to two, touch point, it is judged that
Going out another longest distance is straight line d.4) straight line b is compared by microprocessor system with straight line d,
Judge that straight line b is shorter.5) ultrasonic transducer 2f and ultrasonic transducer 2g mono-group, calculates tactile
Touch distance straight line f, the straight line g between a little 4 to two ultrasonic transducers, it is judged that another longest distance
For straight line f.5) straight line b is compared by microprocessor system 6 with straight line f, it is judged that straight line b
Shorter.Then think that the ultrasonic signal that the ultrasonic receiver corresponding to straight line b receives is reception signal,
It is considered as touch point 4 and is positioned at the touch signal reception of ultrasonic transducer 2b and ultrasonic transducer 2c place
In region 11.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, the present invention is not restricted to the described embodiments, above-described embodiment and explanation
The principle that the present invention is simply described described in book, without departing from the spirit and scope of the present invention,
The present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention model
In enclosing.Claimed scope is defined by appending claims and equivalent thereof.
Claims (10)
1. splicing ultrasonic touch screen, including touch pad, ultrasonic receiver, felt pen, described ultrasonic
Ripple receptor includes that two are separately positioned on the ultrasonic transducer of described touch pad avris, an infrared receiver
Device, two described ultrasonic transducers, described infrared receiving devices connect a signal receiving module respectively,
Described signal receiving module connects a microprocessor system, described felt pen include one with described ultrasound wave
The matching used ultrasonic transmission device of transducer, one matching used with described infrared receiving device infrared
Discharger, it is characterised in that the touch area of described touch pad is divided at least four touch signal and receives
Region, at least four touch signal receiving area is arranged in order at least two rows；
Touch signal receiving area described at least four is equipped with described ultrasonic receiver, described ultrasound wave
Two ultrasonic transducers of receptor are separately positioned on the same avris of described touch signal receiving area；
The described ultrasonic receiver that described touch signal receiving area in same row is arranged is positioned at always
On line, the described ultrasonic receiver that the described touch signal receiving area of adjacent two rows is arranged is according to adjacent
The straight line at place, limit is symmetrical arranged；
Described felt pen touches touch pad, forms touch point, and described microprocessor system touches letter by one
In number receiving area in two ultrasonic transducers of ultrasonic receiver and the distance of described touch point
Two ultrasonic transducers of ultrasonic receiver and institute in distance, with another touch signal receiving area
The longest distance stated in the distance of touch point compares, and is considered as the ultrasound wave corresponding to short distance and receives
The ultrasonic signal that device receives, for receiving signal, is considered as touch point and is positioned at described ultrasonic receiver place
Touch signal receiving area.
Splicing ultrasonic touch screen the most according to claim 1, it is characterised in that described touch pad
On at least two described ultrasonic receivers receive described ultrasonic signal, described ultrasonic receiver
Two ultrasonic transducers respectively the ultrasonic signal received is sent to described signal receiving module,
Described ultrasonic signal is sent to described microprocessor system by described signal receiving module, the most described micro-
Type processor system receives at least four ultrasonic signal；Described microprocessor system first will at least
Four described ultrasonic signals are grouped, and two ultrasonic transducers of a ultrasonic receiver are launched
Ultrasonic signal be one group；
Described microprocessor system first processes two ultrasonic signals that a ultrasonic receiver receives, meter
Calculate the distance between touch point and two ultrasonic transducers of a ultrasonic receiver, described miniature place
Reason device system judges a longest distance；Described microprocessor system reprocesses another ultrasonic receiver
Two ultrasonic signals received, calculate the touch point two ultrasound wave apart from another ultrasonic receiver
Distance between transducer, described microprocessor system judges another longest distance；Described miniature place
One longest distance is compared by reason device system with another longest distance, is considered as surpassing corresponding to short distance
The ultrasonic signal that acoustic receiver receives, for receiving signal, is considered as touch point and is positioned at the reception of described ultrasound wave
The touch signal receiving area at device place；
Described microprocessor system receives the described super of the described touch signal receiving area at place, touch point
The infrared signal that two ultrasonic signals of acoustic receiver transmission, infrared receiving device send, obtains
Touch point positional information in described touch signal receiving area, according to described touch signal region in institute
State the position on touch pad, determine described touch point positional information on described touch pad.
Splicing ultrasonic touch screen the most according to claim 1, it is characterised in that described ultrasound wave
Two ultrasonic transducers of receptor are arranged on the rear of described touch pad.
Splicing ultrasonic touch screen the most according to claim 1, it is characterised in that in described touch
In the case of plate is transparent configuration, two ultrasonic transducers of described ultrasonic receiver are directly embedded into institute
State inside touch pad edge.
Splicing ultrasonic touch screen the most according to claim 1, it is characterised in that described touch pad
Using rectangle, the touch signal receiving area that described touch pad is divided into is rectangle.
Splicing ultrasonic touch screen the most according to claim 1, it is characterised in that described touch is believed
Two ultrasonic transducers in number receiving area are separately positioned on the corner of described touch signal receiving area
Place；
Described microprocessor system is at the straight line calculated between described touch point and a ultrasonic transducer
Distance after, first judge that this distance is whether more than the touch signal reception area at described ultrasonic transducer place
Cornerwise length in territory, is once more than, then microprocessor system is considered as described touch point not described
In touch signal receiving area, no longer carry out the follow-up judgement to this touch signal receiving area.
Splicing ultrasonic touch screen the most according to claim 6, it is characterised in that adjacent two
All there is ultrasonic transducer in the adjacent edge in touch signal receiving area, then shares a ultrasonic waves
Can device；
Infrared receiving device is all there is, then altogether on the adjacent edge of two adjacent touch signal receiving areas
With an infrared receiving device.
8. according to the splicing ultrasonic touch screen described in claim 1,2,6 or 7, it is characterised in that
Described microprocessor system calculates between touch point and two ultrasonic transducers of ultrasonic receiver
Distance equal time, it is longest distance that described microprocessor system is considered as described distance.
Splicing ultrasonic touch screen the most according to claim 8, it is characterised in that microprocessor
When one longest distance and another longest distance are compared by system, there is a longest distance the longest with another
Apart from equal, it is considered as the ultrasound wave reception corresponding to straight line in a longest distance or another longest distance
The ultrasonic signal that device receives, for receiving signal, is considered as touch point and is positioned at described ultrasonic receiver place
Touch signal receiving area.
Splicing ultrasonic touch screen the most according to claim 9, it is characterised in that described miniature place
Reason device system receives at least two batches of ultrasonic signals within the setting time, and the described setting time is less than institute
Stating ultrasonic transmission device and launch the interval time of ultrasonic signal, the most described microprocessor system is considered as
There is at least two touch points on described touch pad；
The every batch of described ultrasonic signal of described microprocessor system time-division processing, determines at least two
Described touch point positional information on described touch pad.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110135030.XA CN102799320B (en) | 2011-05-24 | 2011-05-24 | Spliced ultrasonic touch screen |
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| CN201110135030.XA CN102799320B (en) | 2011-05-24 | 2011-05-24 | Spliced ultrasonic touch screen |
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| CN102799320B true CN102799320B (en) | 2016-08-10 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104636002B (en) | 2013-11-14 | 2019-04-05 | 中兴通讯股份有限公司 | A kind of touch screen and terminal |
| CN106325617B (en) * | 2015-06-15 | 2019-05-31 | 联想(北京)有限公司 | A kind of electronic device, detection device and detection method |
| CN105955552B (en) * | 2016-06-01 | 2018-12-04 | 京东方科技集团股份有限公司 | Touch device, touch control method and curved-surface display device |
| CN109781856A (en) * | 2019-02-25 | 2019-05-21 | 河北普阳钢铁有限公司 | The method that double-crystal normal probe judges field trash group defect in flat metal plate |
| CN109901749A (en) * | 2019-03-05 | 2019-06-18 | 广州视源电子科技股份有限公司 | A kind of touch display screen and display terminal |
| CN113450664A (en) * | 2020-03-26 | 2021-09-28 | 深圳蓝普科技有限公司 | Display screen system and signal transmission method thereof |
| CN111562851B (en) * | 2020-07-16 | 2020-10-30 | 深圳市千分一智能技术有限公司 | Active capacitance pen with correlation tube |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2751355Y (en) * | 2004-06-14 | 2006-01-11 | 钟德超 | Surface acoustic wave touch screen with selectable touch area |
| CN2752860Y (en) * | 2004-11-02 | 2006-01-18 | 广东威创日新电子有限公司 | Interdynamic electronic writing split display screen |
| CN201134091Y (en) * | 2007-12-27 | 2008-10-15 | 成都吉锐触摸技术股份有限公司 | Multisession acoustic wave touch screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8013846B2 (en) * | 2006-02-10 | 2011-09-06 | Tpk Holding Co., Ltd. | Touch detection |
-
2011
- 2011-05-24 CN CN201110135030.XA patent/CN102799320B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2751355Y (en) * | 2004-06-14 | 2006-01-11 | 钟德超 | Surface acoustic wave touch screen with selectable touch area |
| CN2752860Y (en) * | 2004-11-02 | 2006-01-18 | 广东威创日新电子有限公司 | Interdynamic electronic writing split display screen |
| CN201134091Y (en) * | 2007-12-27 | 2008-10-15 | 成都吉锐触摸技术股份有限公司 | Multisession acoustic wave touch screen |
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| CN102799320A (en) | 2012-11-28 |
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