CN103399676A - Automatic detection and adjustment method and application of anti-electromagnetic interference seamless joint touch film - Google Patents

Automatic detection and adjustment method and application of anti-electromagnetic interference seamless joint touch film Download PDF

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Publication number
CN103399676A
CN103399676A CN2013102882647A CN201310288264A CN103399676A CN 103399676 A CN103399676 A CN 103399676A CN 2013102882647 A CN2013102882647 A CN 2013102882647A CN 201310288264 A CN201310288264 A CN 201310288264A CN 103399676 A CN103399676 A CN 103399676A
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touch control
control film
film
electromagnetic interference
emi
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CN2013102882647A
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CN103399676B (en
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刘泽江
夏宇
张军
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Hefei Yuandun Sensor Technology Co ltd
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SUZHOU FANPU NANO TECHNOLOGY Co Ltd
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Abstract

The invention discloses an automatic detection and adjustment method and application of an anti-electromagnetic interference seamless joint touch film. The anti-electromagnetic interference seamless joint touch film comprises two or more touch films which have the anti-electromagnetic interference automatic detection and adjustment function, an imaging and display device and a computing control unit connected with the touch films and the imaging and display device through electric wires. The automatic detection and adjustment method and application of the anti-electromagnetic interference seamless joint touch film has the advantages that the problem that electromagnetic interference is generated when the touch films are jointed seamlessly (namely, at close distance) is solved, therefore, two or more nano touch films can be jointed seamlessly (at close distance), and more application fields are supplied to the touch films.

Description

Automatic detection and adjustment method and the application of the seamless spliced touch control film of anti-electromagnetic interference (EMI)
Technical field
The present invention relates to the touch technology field, be specifically related to a kind of seamless spliced multiple touch control film automatic detection and adjustment method and application.
Background technology
Increasingly extensive along with touch technology, the application of touch-control is more and more polynary change also, because the characteristics such as simple, convenient, hommization of touch control operation have become the best interface of human-computer interaction and universal rapidly.Nanometer touch film based on the development of projecting type capacitor touch technology arrives more frontier by the touch technology application extension especially.
Widespread use along with multimedia in life, people are to the pursuit of visual effect diversified development especially.Now at present existing seamless spliced technology for solve super large width screen-picture imaging belt to people with powerful visual impact.Hardware splicing, lap splice and soft limit anastomosing and splicing three phases have been experienced in the development of seamless spliced technology altogether.The hardware splicing has obvious cut-off rule (being the physics splicing), can't realize the integrated demonstration of panorama; Lap splice refers to that the image that two projectors are launched is overlapping in the mode of stack in mosaic, but this splicing obviously exists mosaic, the disadvantage of bright area due to the brightness stack, occurs, has influence on the realization of seamless display effect; Soft limit anastomosing and splicing is by the processing of edge fusion technology, both realized the fusion fully on both sides, eliminated again the mistake bright area that lap splice causes, be applicable to the splicing of the various curve forms such as plane, cylinder, sphere, than the former two, applicability has more widely been arranged.
The condenser type nanometer touch film generally forms a matrix plane between the nm-class conducting wire by some X-axis and some Y-axis, also claim sensing unit.According to capacitance principle, when on sensing unit, applying a pumping signal, due to the existence of self-capacitance, will between sensing unit and ground, produce an electric field that changes with pumping signal, can be described as self-capacitance.And an electric capacity that forms at the place, point of crossing of each X-axis and Y-axis, two nm-class conducting wires of X-axis and Y-axis are respectively two electrodes of electric capacity, this electric capacity is exactly mutual capacitance.When the fixing sine wave exciting signal of amplitude of input and phase place on the exciting electrode wire, due to the existence of self-capacitance, mutual capacitance, on the nm-class conducting wire of induction, there will be the relevant signal of size of a frequency in amplitude and phase place and pumping signal and electric capacity.When pointing touch-control to this point of crossing, signal amplitude and the phase place sensed of exciting electrode should be constant.Therefore, the signal frequency of sensing by the detection exciting electrode presents sinusoidal wave the variation.When the splicing of multiple touch control films, when film is consistent with exciting signal frequency value between film usually, will produces the resonance effect of frequency values, thereby make nanometer touch film experience and the electromagnetic interference (EMI) phenomenon occur at touch-control, make touch-control malfunctioning.
Summary of the invention
A kind of anti-electromagnetic interference (EMI) automatic detection and adjustment method that the purpose of this invention is to provide effective multiple touch control films when seamless spliced.Purpose of the present invention will be achieved by the following technical programs:
A kind of automatic detection and adjustment method of seamless spliced touch control film of anti-electromagnetic interference (EMI), described touch control film for splicing comprises more than two or two, comprises the steps,
The total quantity step of the touch control film of S1, judgement splicing, be specially: the signal connecting line that the induced signal of the touch control film that all splicings are installed gathers the control integration circuit board is connected in a LAN (Local Area Network) by calculation control unit, according to calculation control unit, draws the quantity of the touch control film that splices for the distribution address of each touch control film;
The film step is disturbed in S2, judgement, is specially:
S21, detect each touch control film and divide other signal frequency,
Whether the touch control film that S22, detection have identical exciting signal frequency is adjacent,
If between the touch control film of adjacency, have identical exciting signal frequency, adjacent touch control film disturbs film each other, if between the touch control film of adjacency, have different exciting signal frequency, adjusts automatically and finishes;
S3, automatic setting procedure, described calculation control unit is adjusted the capacitance of the public capacitance unit of described interference film, guarantees the public capacitance appearance value difference of the adjacent touch control film of having adjusted, and avoids interference the existence of film, automatically adjusts and finishes; Otherwise, return to step S2.
Preferably, every described touch control film includes an induced signal and gathers the control integration circuit board, described induced signal gathers the control integration circuit board and has public capacitance unit separately, described public capacitance unit possesses the assembly of adjustable capacitance appearance value, and the electric capacity and the public capacitance unit that on the nm-class conducting wire of the exciting signal frequency of described touch control film by touch control film, exist determine jointly.
Preferably, the nm-class conducting wire surface, inside of described touch control film is provided with anti-electromagnetic interference (EMI) coating.
Preferably, the inside nm-class conducting wire of the described touch control film edge that arranges carries out sparse processing to wiring.
Another object of the present invention is to provide a kind of application of seamless spliced touch control film of anti-electromagnetic interference (EMI).
A kind of application of seamless spliced touch control film of anti-electromagnetic interference (EMI), comprise the touch control film with anti-electromagnetic interference (EMI) automatic detection and adjustment function more than two or two, imaging display apparatus, and the calculation control unit that is connected with touch control film, imaging display apparatus electric wire.
Preferably, described imaging display apparatus is flexible imaging panel or projection imaging device, for a plurality of picture splicings, shows or a whole picture disply.
Preferably, described touch control film after seamless spliced is plane or radian is curved surface or the sphere of 0 ~ 180 degree.
Preferably, but described calculation control unit is for identifying the also control unit of transmission of video information that has the data storage and process of described touch control film position, with the transmit port of accessible a plurality of touch control film interfaces, can control simultaneously multiple touch control films or control separately the automatic detection and adjustment of a touch control film.
Beneficial effect major embodiment of the present invention is: the anti-interference automatic adjusting method that proposes a kind of adjacent touch control film, successfully solved touch control film produces when splicing seamless (namely closely) electromagnetic interference problem, make the nanometer touch film more than two or two can realize seamless (closely) splicing, for touch control film has been opened up more application.
The accompanying drawing explanation
Fig. 1 is the process flow diagram of anti-electromagnetic interference (EMI) automatic detection and adjustment of the present invention;
Fig. 2 is the exciting signal frequency schematic diagram in anti-electromagnetic interference (EMI) automatic detection and adjustment process of the present invention;
Fig. 3 is the schematic diagram of the embodiment 1 that applies of the present invention;
Fig. 4 is the Another Application schematic diagram of the embodiment 1 that applies of the present invention;
Fig. 5 is the schematic diagram of the embodiment 2 that applies of the present invention.
Embodiment
Ultimate principle of the present invention is by changing the induced signal frequency of multiple nanometer touch films, make between exciting electrode and induction pole to discharge and recharge the cycle inconsistent, be that capacitance is inconsistent, the amplitude that finally reaches multiple nanometer touch films detection pumping signals is inconsistent, namely do not reach resonance effect, thus the anti-electromagnetic interference (EMI) while realizing that nanometer touch film is seamless spliced.
With reference to shown in Figure 1, the flow process of anti-electromagnetic interference (EMI) automatic detection and adjustment of the present invention is as follows:
The total quantity step of the touch control film of S1, judgement splicing, be specially: the signal connecting line that the induced signal of the touch control film that all splicings are installed gathers the control integration circuit board is connected in a LAN (Local Area Network) by calculation control unit, according to calculation control unit, draws the quantity of the touch control film that splices for the distribution address of each touch control film;
The film step is disturbed in S2, judgement, is specially:
S21, detect each touch control film and divide other signal frequency,
Whether the touch control film that S22, detection have identical exciting signal frequency is adjacent,
If between the touch control film of adjacency, have identical exciting signal frequency, adjacent touch control film disturbs film each other, if between the touch control film of adjacency, have different exciting signal frequency, adjusts automatically and finishes;
S3, automatic setting procedure, described calculation control unit is adjusted the capacitance of the public capacitance unit of described interference film, guarantees the public capacitance appearance value difference of the adjacent touch control film of having adjusted, and avoids interference the existence of film, automatically adjusts and finishes; Otherwise, return to step S2.
Specifically, every described touch control film includes an induced signal and gathers the control integration circuit board, described induced signal gathers the control integration circuit board and has public capacitance unit separately, described public capacitance unit possesses the assembly of adjustable capacitance appearance value, and the electric capacity and the public capacitance unit that on the nm-class conducting wire of the exciting signal frequency of described touch control film by touch control film, exist determine jointly.For example: according to rc oscillatory circuit frequency computation part formula f=1/2 π RC, wherein, f is the exciting signal frequency of touch control film, and R is the inside nm-class conducting wire of touch control film and the combined resistance that induced signal gathers the control integration circuit board line, and C is the combination capacitor of nm-class conducting wire and public capacitance unit.As shown in Figure 2, when R is constant, adjust two public capacitance C1=1 μ F that disturb film, C2=2 μ F, the electric capacity and the public capacitance unit that on the nm-class conducting wire of induced signal frequency by touch control film due to touch control film, exist determine jointly, and the wavelength that the exciting signal frequency of film therefore detected changes, and the exciting signal frequency of two touch control films is also different, so can not reach resonance effect, thus the anti-electromagnetic interference (EMI) while realizing that nanometer touch film is seamless spliced.Like this, the induced signal frequency phase-difference is larger, and interference effect will be less.
The present invention has also disclosed the application of concentrating the touch control film with anti-electromagnetic interference (EMI) automatic detection and adjustment function.
Application Example 1, as shown in Figure 3, Figure 4, comprise four touch control film 1(1 that can closely splice), 1(2), 1(3), 1(4), described touch control film 1(1), be 1(2), 1(3), 1(4) to possess the touch control film that can automatically adjust interference detection technique, described touch control film 1(1), 1(2), 1(3), 1(4) the whipping place be that induced signal gathers the control integration circuit board, but described induced signal gathers the unit of the public capacitance with different capacitances that the control integration circuit board is provided with automatic detection and adjustment.One imaging display unit, described imaging display unit be four independent, whole pictures of sliceable demonstration flexible hydraulic crystal panel 2(1), 2(2), 2(3), 2(4), can be curved surface or the sphere of 0 ~ 180 degree for plane or radian.One calculation control unit 3, described calculation control unit 3 be with a plurality of touch control film 1(1), 1(2), 1(3), 1(4) interface that is connected, or connect respectively touch control film 1(1 by the local area network wireless signal), 1(2), 1(3), 1(4) middle control unit, install to disturb simultaneously the automatic adjustment software of film detection technique, the unified touch control film 1(1 that controls), 1(2), 1(3), 1(4).
The automatic detection and adjustment flow process is: by calculation control unit 3 and touch control film 1(1), 1(2), 1(3), 1(4) signal be connected detect splicing film 1(1), 1(2), 1(3), 1(4) number, according to detecting touch control film 1(1), 1(2), 1(3), 1(4) exciting signal frequency judge whether to disturb the existence of film, if there is not interference, automatically adjusts and finish; If judge when adjacent touch control film disturbs film each other, by the adjustment of algorithm Automatic Optimal, disturbed the capacitance of the public capacitance unit of film, guarantee the adjacent touch control film public capacitance appearance value difference of having adjusted, automatically adjust and finish, otherwise, again detect the exciting signal frequency judgement and disturb film to exist.
Embodiment 2, as shown in Figure 5, be different from embodiment 1: comprise four touch control film 1(1 that can closely splice), 1(2), 1(3), 1(4), its whipping place induced signal gather control integration circuit board respectively with calculation control unit 3(1), 3(2), 3(3), 3(4) by wired or wireless mode, be connected; One imaging display unit, described imaging display unit be four independent, the flexible hydraulic crystal panel 2(1 of the independent picture of sliceable demonstration), 2(2), 2(3), 2(4).
The automatic detection and adjustment flow process is: under a LAN environment, by calculation control unit 3(1), 3(2), 3(3), 3(4) with touch control film 1(1), 1(2), 1(3), 1(4) signal is connected, set calculation control unit 3(1), 3(2), 3(3), 3(4) wherein one be middle control main frame, or utilize outside calculation control unit 3(5) be middle control main frame, carry out touch control film 1(1), 1(2), 1(3), 1(4) automatic detection and adjustment.
The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming, within all dropping on protection scope of the present invention.

Claims (8)

1. the automatic detection and adjustment method of the seamless spliced touch control film of an anti-electromagnetic interference (EMI), described touch control film for splicing comprises more than two or two, it is characterized in that: comprise the steps,
The total quantity step of the touch control film of S1, judgement splicing, be specially: the signal connecting line that the induced signal of the touch control film that all splicings are installed gathers the control integration circuit board is connected in a LAN (Local Area Network) by calculation control unit, according to calculation control unit, draws the quantity of the touch control film that splices for the distribution address of each touch control film;
The film step is disturbed in S2, judgement, is specially:
S21, detect each touch control film and divide other signal frequency,
Whether the touch control film that S22, detection have identical exciting signal frequency is adjacent,
If between the touch control film of adjacency, have identical exciting signal frequency, adjacent touch control film disturbs film each other, if between the touch control film of adjacency, have different exciting signal frequency, adjusts automatically and finishes;
S3, automatic setting procedure, described calculation control unit is adjusted the capacitance of the public capacitance unit of described interference film, guarantees the public capacitance value difference of the adjacent touch control film of having adjusted, and avoids interference the existence of film, automatically adjusts and finishes; Otherwise, return to step S2.
2. the automatic detection and adjustment method of the seamless spliced touch control film of anti-electromagnetic interference (EMI) according to claim 1, it is characterized in that: every described touch control film includes an induced signal and gathers the control integration circuit board, described induced signal gathers the control integration circuit board and has public capacitance unit separately, described public capacitance unit possesses the assembly of adjustable capacitance appearance value, and the electric capacity and the public capacitance unit that on the nm-class conducting wire of the exciting signal frequency of described touch control film by touch control film, exist determine jointly.
3. the automatic detection and adjustment method of the seamless spliced touch control film of anti-electromagnetic interference (EMI) according to claim 2 is characterized in that: the nm-class conducting wire surface, inside of described touch control film is provided with anti-electromagnetic interference (EMI) coating.
4. the automatic detection and adjustment method of the seamless spliced touch control film of anti-electromagnetic interference (EMI) according to claim 2 is characterized in that: the inside nm-class conducting wire of the described touch control film edge that arranges carries out sparse processing to wiring.
5. the application of the seamless spliced touch control film of an anti-electromagnetic interference (EMI), it is characterized in that: comprise the touch control film with anti-electromagnetic interference (EMI) automatic detection and adjustment function more than two or two, imaging display apparatus, and the calculation control unit that is connected with touch control film, imaging display apparatus electric wire.
6. the application of the seamless spliced touch control film of anti-electromagnetic interference (EMI) according to claim 5 is characterized in that: described imaging display apparatus is flexible imaging panel or projection imaging device, for a plurality of picture splicings, shows or a whole picture disply.
7. the application of the seamless spliced touch control film of according to claim 5 or 6 described anti-electromagnetic interference (EMI) is characterized in that: described touch control film after seamless spliced is plane or radian is curved surface or the sphere of 0 ~ 180 degree.
8. the application of the seamless spliced touch control film of according to claim 5 or 6 described anti-electromagnetic interference (EMI), it is characterized in that: but described calculation control unit is for identifying the also control unit of transmission of video information that has the data storage and process of described touch control film position, with the transmit port of accessible a plurality of touch control film interfaces, can control simultaneously multiple touch control films or control separately the automatic detection and adjustment of a touch control film.
CN201310288264.7A 2013-07-10 2013-07-10 The automatic detection and adjustment method of the seamless spliced touch control film of electromagnetism interference and application system Active CN103399676B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108205387A (en) * 2016-12-19 2018-06-26 镇江华锐科技信息有限公司 A kind of intelligent tutoring nanometer touch film
CN112346589A (en) * 2019-08-06 2021-02-09 联阳半导体股份有限公司 Touch system control method for reducing electromagnetic interference and touch system thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102169388A (en) * 2011-04-02 2011-08-31 苏州泛普纳米科技有限公司 Curve screen based on nanometer touch-control membrane technique and manufacturing method thereof
CN102789336A (en) * 2012-07-04 2012-11-21 广东威创视讯科技股份有限公司 Multi-screen splicing touch control method and system
KR20130024099A (en) * 2011-08-30 2013-03-08 이터보터치 테크날로지 인코퍼레이티드 Seamless capacitive touch panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102169388A (en) * 2011-04-02 2011-08-31 苏州泛普纳米科技有限公司 Curve screen based on nanometer touch-control membrane technique and manufacturing method thereof
KR20130024099A (en) * 2011-08-30 2013-03-08 이터보터치 테크날로지 인코퍼레이티드 Seamless capacitive touch panel
CN102789336A (en) * 2012-07-04 2012-11-21 广东威创视讯科技股份有限公司 Multi-screen splicing touch control method and system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108205387A (en) * 2016-12-19 2018-06-26 镇江华锐科技信息有限公司 A kind of intelligent tutoring nanometer touch film
CN112346589A (en) * 2019-08-06 2021-02-09 联阳半导体股份有限公司 Touch system control method for reducing electromagnetic interference and touch system thereof
CN112346589B (en) * 2019-08-06 2024-02-23 联阳半导体股份有限公司 Touch control system control method for reducing electromagnetic interference and touch control system thereof

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