CN1133118C - Touch control screen capable of isolating stray signal - Google Patents
Touch control screen capable of isolating stray signal Download PDFInfo
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- CN1133118C CN1133118C CN 00134509 CN00134509A CN1133118C CN 1133118 C CN1133118 C CN 1133118C CN 00134509 CN00134509 CN 00134509 CN 00134509 A CN00134509 A CN 00134509A CN 1133118 C CN1133118 C CN 1133118C
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Abstract
The present invention relates to a touch control screen capable of isolating stray signals. The touch control screen arranged in front of an LCD or a CRT display also absorbs electromagnetic interference and radio frequency interference emitted by the LCD or the CRT when receiving touch control signals, and the interference or the stray signals directly affect the accuracy of the touch control screen. The present invention provides a device for removing the interference of the stray signals, a conducting wire as same as an antenna is additionally added on the touch control screen, stray signals absorbed by the conducting wire are completely consistent with the stray signals in the touch control signals, the stray signals received by the conducting wire are used for subtracting the stray signals in the touch control signals so as to eliminate stray signals in control signals, and therefore, the accuracy of the touch control screen can be enhanced.
Description
Technical field
The present invention relates to a kind of electricity field and have the touch screen of eliminating noise, particularly relate to a kind of the have noise that elimination liquid crystal display screen (LCD) or cathode ray tube (CRT) background light source are taken place, the perhaps touch screen of the Radio frequency interference (RFI) (RFI) of external electromagnetic interference (EMI).
Background technology
In the prior art, the touch screen that detects voltage-type and detection current mode is at present extensively applied to use on desktop, hand held or the notebook computer, allow the user can be after writing on the screen, draw or clicking every function or key command, this electrical signal just is input in the computer and handles, computer is done the switching of various function forms at screen during use, and being convenient to the user does not need to get final product operating computer by keyboard again.
As shown in Figure 1, be existing traditional current type touch screen, it is to receive controller by glassy layer 1, conductive film layer 2, linearization cloth Fig. 3, insulation course 4, four silver medal line conductive layers 5 and splicing ear 7 to be constituted.Four equal voltages of controller output are to four ends of this touch screen linearity and the variation of measuring electric current.
When contact difference on touch screen, four end electric currents can play different variations, controller is determined the position that is touched by the variation of measuring these four electric currents, detailed principle of work can be with reference to United States Patent (USP) the 4th, 293, No. 734, in real work, the noise of touch screen around will absorbing, and sneaking in these four electric currents, so that the position of causing this touch screen can't accurate response to be touched.
As shown in Figure 2, be existing traditional voltage-type four silver medal touch screens, it is to be connected to controller and to be constituted by glassy layer 10, conductive indium-tin oxide layer 11, one group of insulating point 12, insulation course 13, four silver medal line conductive layers 14, another insulation course 15, another tin indium oxide (ITO) conductive layer 16, plastic film 17 and splicing ear 18.On principle of work, the tin indium oxide of lower floor connects the axial uniform electric field of 0-5VX, when touch screen is touched, the tin indium oxide on upper strata touches the tin indium oxide of lower floor to measure the magnitude of voltage of this point, and this magnitude of voltage ratio is promptly represented the ratio of this direction position (X-axis) on touch screen.For example: 3V is signifying the total length of touched point at 60% touch screen directions X, after finishing this orientation measurement, control panel is with the axial uniform electric field of upper strata tin indium oxide conversion 0-5VY, lower floor's tin indium oxide is used for measuring the magnitude of voltage of upper strata touch point to measure the position of other direction (Y-axis), detailed principle of work can be with reference to United States Patent (USP) the 3rd, 622, No. 105.In real work, the noise of touch screen around will absorbing, and sneaking in this measured voltage, so that the position of causing this touch screen can't accurate response to be touched.
As shown in Figure 3, be existing traditional voltage-type five silver medal touch screens, it is connected to controller and is constituted by glassy layer 20, conductive indium-tin oxide layer 21, one deck linearization cloth Figure 29, one group of insulating point 22, insulation course 23, four silver medal line conductive layers 24, another insulation course 25, another conductive indium-tin oxide layer 26, plastic film 27 and splicing ear 28.On principle of work, the tin indium oxide of lower floor connects the axial uniform electric field of 0-5VX, when touch screen is touched, the tin indium oxide on upper strata touches the tin indium oxide of lower floor to measure the magnitude of voltage of this point, and this magnitude of voltage ratio is promptly represented the ratio of this direction position (X-axis) on touch screen.For example: 3V is signifying the total length of touched point at 60% touch screen directions X, after finishing this orientation measurement, control panel converts lower floor's tin indium oxide to 0-5VY axial uniform electric field, lower floor's tin indium oxide is used for measuring the magnitude of voltage of upper strata touch point to measure the position of other direction (Y-axis), detailed principle of work can be with reference to United States Patent (USP) the 3rd, 798, No. 370.In real work, the noise of touch screen around will absorbing, and sneaking in the measured voltage, so that the position of causing this touch screen can't accurate response to be touched.
Though, in the existing traditional touch screen of being lifted in front of three examples, touch-screen can be convenient to the user not to be needed to get final product operating computer behind the key on the keypad, but many disappearances are arranged still in use, reason is the noise that this kind touch screen is produced by liquid crystal display screen (LCD) or cathode ray tube (CRT) background light source easily, perhaps isolating exterior electromagnetic interference (EMI) and Radio frequency interference (RFI) (RFI) all can cause the sense position out of true, cause computer false judgment or identification.For example, when on touch screen, drawing straight line, then be sinuate lines to occur on this screen display, when a keyboard pattern appears in screen, when the user puts the A key, the wrong video picture of B letter appears then at screen perhaps.
Summary of the invention
Fundamental purpose of the present invention is, the defective of avoiding above-mentioned existing touch screen to exist, and provide having of a kind of new structure to isolate the touch screen of noise, make it by on touch screen, adding a wire installation that image antenna is the same, noise and the noise in the touching signals that this lead absorbed are in full accord, the noise that utilizes these leads to receive in controller deducts noise in the touch-control signal getting rid of the noise in the controlling signal, and can reach required accuracy.
The objective of the invention is to realize by following technical scheme.A kind of touch screen according to the present invention's proposition with isolation noise, for having the detection current type touch screen of eliminating noise, this touch screen includes: a glassy layer, one conductive film layer, one linearization Butut, one insulation course, a First Five-Year Plan silver line conductive layer and a splicing ear, wherein four leads in the five silver medal line conductive layers are connected to four ends of linearization Butut, four be connected to controller in addition, article five, an end of lead is unsettled, the other end is received controller simultaneously, described the 5th lead is printed on the back side of glassy layer, the 5th unsettled lead of an above-mentioned end is used to detect the noise that influences controller, controller utilizes the 5th the detected signal noise of lead to eliminate the interference of controller noise, forms a five-line with cancellation noise and detects the current type touch screen.
Purpose of the present invention can also further realize by following technical measures.
Aforesaid touch screen with isolation noise, wherein said the 5th lead extension with detection current type touch screen of cancellation noise is provided with a link.
Aforesaid touch screen with isolation noise, wherein said the 5th lead with detection current type touch screen of eliminating noise is printed to rectangular-shaped frame line.
The objective of the invention is also to realize by following technical scheme.A kind of touch screen of isolating noise according to the present invention's proposition, for five lines with cancellation noise detect the voltage-type touch screen, this touch screen is by a glassy layer, one first conductive film layer, one site layer, one first insulation course, First Five-Year Plan silver line conductive layer and one second insulation course, one second conductive film layer, one thin layer and a splicing ear constitute, wherein there are not the two ends that four leads in the silver-colored line conductive layer are connected to first conductive film layer and second conductive film layer respectively, four be connected to controller in addition, article five, an end of lead is unsettled, the other end is received controller simultaneously, described the 5th lead extension is provided with a link, article five, lead is printed on the back side of glassy layer, the 5th unsettled lead of an above-mentioned end is used to detect the noise that influences controller, controller utilizes the 5th the detected signal noise of lead to eliminate the interference of controller noise, forms a five-line with cancellation noise and detects the voltage-type touch screen.
Purpose of the present invention can also further realize by following technical measures.
Aforesaid touch screen with isolation noise, the 5th lead that wherein said five lines with cancellation noise detect in the voltage-type touch screen is printed to rectangular-shaped frame line.
Purpose of the present invention also can be realized by following technical scheme.A kind of touch screen according to the present invention's proposition with isolation noise, for six lines with cancellation noise detect the voltage-type touch screen, this touch screen is by a glassy layer, one first conductive film layer, one linearization patterned layers, one site layer, one first insulation course, First Five-Year Plan silver line conductive layer and one second insulation course, one second conductive film layer, one thin layer and a splicing ear constitute, wherein there are not four ends that four leads in the silver-colored line conductive layer are connected to the linearization patterned layers, four be connected to controller in addition, article six, an end of lead is unsettled, the other end is received controller simultaneously, article six, the lead extension is provided with a link, this lead is printed on the back side of glassy layer, the 6th unsettled lead of an above-mentioned end is used to detect the noise that influences controller, controller utilizes the 6th the detected signal noise of lead to eliminate the interference of controller noise, and the six line formulas with cancellation noise that form detect the voltage-type touch screen.
Purpose of the present invention can also further realize by following technical measures.
Aforesaid touch screen with isolation noise, the 6th wire antenna that wherein said six lines with cancellation noise detect in the voltage-type touch screen is printed to rectangular-shaped frame line.
The present invention compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, the present invention has the touch screen of isolating noise, it is a kind of noise that elimination liquid crystal display screen (LCD) or cathode ray tube (CRT) background light source are taken place that has, the perhaps touch screen of the Radio frequency interference (RFI) (RFI) of external electromagnetic interference (EMI), it mainly is the touch screen that is contained in LCD LCD or CRT cathode-ray tube display front, when receiving the touch signal, electromagnetic interference (EMI) that LCD or CRT sent and Radio frequency interference (RFI) have also been absorbed, these interference or noise directly influence the accuracy of touch screen, a kind of method that noise disturbs of removing is provided in the present invention, by on touch screen, adding the 5th or the 6th lead that image antenna is the same, noise and the noise in the touching signals that this lead absorbed are in full accord, the noise that utilizes this lead to receive in the touch screen controller deducts noise in the touch-control signal getting rid of the noise in the controlling signal, thus the accuracy that can improve touch screen.
In sum, the defective that the present invention has avoided existing touch screen to exist effectively, and provide having of a kind of new structure to isolate the touch screen of noise, it is by adding to establish a wire installation that image antenna is the same on touch screen, noise and the noise in the touching signals that this lead absorbed are in full accord, the noise that utilizes these leads to receive in controller deducts noise in the touch-control signal getting rid of the noise in the controlling signal, and can reach required accuracy.No matter it structurally or bigger improvement is all arranged on the function, and have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thereby be suitable for practicality more, really is a new and innovative, progressive, practical new design.
Description of drawings
Fig. 1 is the structure decomposing schematic representation that existing traditional electrical streaming touches screen;
Fig. 2 is that existing traditional four line voltage-types touch the screen configuration decomposing schematic representation;
Fig. 3 is that existing traditional five line voltage-types touch the screen configuration decomposing schematic representation;
Fig. 4 is that first kind of current type of the present invention touches the screen configuration decomposing schematic representation;
Fig. 5 is that second kind of current type of the present invention touches the screen configuration decomposing schematic representation;
Fig. 6 is that first kind of five silver medal line voltage-type of the present invention touches the screen configuration decomposing schematic representation;
Fig. 7 is that second kind of five silver medal line voltage-type of the present invention touches the screen configuration decomposing schematic representation;
Fig. 8 is first kind of six silver medal line voltage-type touch screen decomposing schematic representation of the present invention;
Fig. 9 is second kind of six silver medal line voltage-type touch screen decomposing schematic representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, have a touch screen of isolating noise to what foundation the present invention proposed, its technology contents, structure, feature and effect thereof, describe in detail as after.
Seeing also shown in Figure 4ly, is first kind of current type touch screen decomposing schematic representation of the present invention.As shown in the figure, touch screen with eliminating noise of the present invention, mainly be to add at the touch screen that has the traditional electrical streaming now to print a lead 6, these lead 6 one ends are unsettled, just as an antenna, the other end of lead is received on the controller of touch screen, and this wire antenna has absorbed the noise same with touch screen, controller deducts noise in the touch-control signal with the noise that this antenna conductor absorbed, and allows the touch screen of current type form one and has the current type touch screen of offsetting noise.
The above-mentioned touch screen of carrying includes: a glassy layer (Glass) 1, one conductive film layer (ITO) 2, one linearization Butut (Linearization pattern) 3, one insulation course (Isolation) 4, First Five-Year Plan silver line conductive layer (Silver Printing) 5, and a splicing ear (Tail) 7 is linked control panel, wherein an end of five silver medal line conductive layers 5 is linked controller on the touch screen by splicing ear 7, one of four leads of five silver medal line conductive layers 5 four ends that terminate to linearization cloth Fig. 3 wherein, article five, an end of lead 6 is unsettled is antenna conductor, article five, the other end of lead 6 and four leads receiving linearization patterned layers 3 are printed on insulation course 4 simultaneously, do not increase new cost on making.
This conductive film layer 2 can be tin indium oxide (ITO:Indium Tin Oxide);
This linearization cloth Fig. 3 is to be printed on the periphery of above-mentioned conductive film layer 2 with mode of printing;
This insulation course 4 is to be printed on the above-mentioned conductive film layer 2 with mode of printing;
This five silver medal line conductive layer 5 and the 5th lead 6 are to be printed on the above-mentioned insulation course 4 with mode of printing;
Article five, lead 6 is positioned at the inboard or the outside of above-mentioned five silver medal line conductive layers 5, and the one end extends in order to the noise of cancellation touch screen outside so that controller can be eliminated the interference of touch screen with this noise;
This splicing ear 7 is a diaphragm type sheet transfer wire, is connected with link 5a, the 6a of above-mentioned five silver medal line conductive layers 5 and the 5th lead 6, electrical signal that touch screen produces can be exported.Said structure is combined, to constitute the detection current mode touch screen of First Five-Year Plan silver line formula.
Be connected in any palmtop computer or notebook computer at above-mentioned detection current mode touch screen, when perhaps using on the desktop computer, the 5th lead 6 of this detection current mode touch screen can absorb the noise that liquid crystal display screen (LCD) or cathode ray tube (CRT) background light source are produced, and absorption external electromagnetic interference (EMI) and Radio frequency interference (RFI) (RFI), so that allowing controller eliminate same noise disturbs, allow the user on touch screen, write, draw or when clicking every function, reduce the interference that is subjected to extraneous noise, cause and write, the lines of drawing reduce crooked phenomenon, and can accurately sense and click the position, make the electrical signal of output can not cause vicious judgement of computer or identification.
Seeing also shown in Figure 5ly, is the decomposing schematic representation of second kind of current type touch screen of the present invention.As shown in the figure, add the 5th lead 6 of printing one deck at glass 1 back side of the touch screen that has the traditional electrical streaming now, the 5th mentioned lead of this lead 6 and Fig. 4 has identical functions, allows the touch screen formation one of current type have the current type touch screen of cancelling noise.
The above-mentioned touch screen of carrying, it includes: a glassy layer (Glass) 1, one conductive film layer (ITO) 2, one linearization Butut (Linearization pattern) 3, one insulation course (Isolation) 4, First Five-Year Plan silver line conductive layer 5 (Silver Printing), article one the 5th, 7 formations of lead (Antenna Wire) 6 and one splicing ear (Tail), this touch screen is identical with the technology of the touch screen that above-mentioned Fig. 4 is disclosed, institute's difference is, the 5th lead 6 is printed in mode of printing on the periphery at the back side of glassy layer 1, the 5th lead 6 can reach the function of the elimination touch screen noise of earlier figures 4.
This conductive film layer 2 can be tin indium oxide (ITO:Indium Tin Oxide);
This linearization cloth Fig. 3 is to be printed on the periphery of above-mentioned conductive film layer 2 with mode of printing;
This insulation course 4 is to be printed on the above-mentioned conductive film layer 2 with mode of printing;
This four silver medal line conductive layer 5 is to be printed on the above-mentioned insulation course 4 with mode of printing;
Article five, lead 6 is the back side that is printed on above-mentioned glassy layer 1 with mode of printing, and the 5th lead 6 one ends extend in order to cancel the noise of touch screen outside, so that controller can be eliminated the interference of touch screen with this noise;
This splicing ear 7 is a diaphragm type sheet transfer wire, is connected with link 5a, the 6a of four silver medal line conductive layers 5 and the 5th lead 6, electrical signal that touch screen produces can be exported.Said structure is combined, detects the current mode touch screen to constitute another kind of five silver medal line formulas.
Seeing also shown in Figure 6ly, is the decomposing schematic representation of first kind of five silver medal line voltage-type touch screen of the present invention.As shown in the figure, touch screen at traditional four silver medal line voltage-types adds one bar of the 5th lead 19 of printing, article five, lead 19 1 ends are unsettled, just as an antenna, the other end of lead is received on the controller of touch screen, this wire antenna has absorbed the noise same with touch screen, and controller deducts noise in the touch-control signal with the noise that this wire antenna absorbed, and allows the touch screen of four silver medal line voltage-types form one and has the five silver medal line voltage-type touch screens of eliminating noise.
The above-mentioned touch screen of carrying, be by a glassy layer 10, one first conductive film layer 11, one site layer 12, one first insulation course 13, First Five-Year Plan silver line conductive layer 14, one second insulation course 15, one second conductive film layer 16, one thin layer 17, one splicing ear 18 constitutes, wherein five silver medal line conductive layers, one end is linked controller on the touch screen by splicing ear 18, wherein an other end of four bullion lines is received i.e. first conductive film layer 11 of upper and lower conductive layers respectively, the two ends of second conductive film layer 16, article five, an end of lead 19 is unsettled is antenna conductor, article five, the other end of lead 19 and four leads receiving the linearization Butut are printed on insulation course simultaneously, do not increase new cost on making.
The 5th lead 19 of five silver medal line conductive layers 14 is to increase a lead in traditional four silver medal line structures, and to be used for detecting noise, the noise that the controller utilization is detected cuts the noise of touch-control signal;
This first conductive film layer 11 can be a tin indium oxide (ITO:Indium Tin Oxide);
This site layer 12 is with mode of printing or be covered on the first above-mentioned conductive film layer 11;
This first insulation course 13 is the peripheries that are printed in above-mentioned site layer 12 with mode of printing;
This five silver medal line conductive layer 14 is to print the lead group of five connection controllers on above-mentioned first insulation course 13 with mode of printing;
This second conductive film layer 16 can be a tin indium oxide (ITO:Indium Tin Oxide);
This thin layer 17 is constituted by a clear films;
This splicing ear 18 is a diaphragm type sheet transfer wire, is connected with link 14a, the 19a of above-mentioned five silver medal line conductive layers 14 and the 5th lead 19, electrical signal that touch screen produces can be exported.Said structure is combined, to constitute a kind of five silver medal line voltage-type touch screens.
Above-mentioned touch screen is connected in any palmtop computer or notebook computer, when perhaps using on the desktop computer, the 5th lead 19 of this touch screen can be cancelled the noise that liquid crystal display screen (LCD) or cathode ray tube (CRT) background light source are produced, and cancellation external electromagnetic interference (EMI) and Radio frequency interference (RFI) (RFI), allow the user on touch screen, write, draw or when clicking every function, not disturbed by any noise, cause and write, the lines of drawing do not have again crooked phenomenon to take place, and can accurately sense and click the position, make the electrical signal of output can not cause vicious judgement of computer or identification.
Seeing also shown in Figure 7ly, is the decomposing schematic representation of second kind of five silver medal line voltage-type touch screen structure of the present invention.As shown in the figure, add in the touch screen glass back of traditional four silver medal line voltage-types and print 19, the five leads 19 of one bar of the 5th lead and allow the touch screen of four silver medal line voltage-types form another kind to have the five silver medal line formula touch screens of eliminating noise.
The above-mentioned touch screen of carrying is made of a glassy layer 10, one first conductive film layer 11, a site layer 12, one first insulation course, 13,1 silver medal line P.e.c. conductive layers 14, one second insulation course 15, a lead 19, a thin layer 17, second conductive film layer 16 and splicing ear 18; Article five, lead 19 is to increase to be used for detecting noise in traditional four silver medal line structures, and the noise that the controller utilization is detected cuts the noise of touch-control signal;
Article five, 19 is to be imprinted on the back side of glassy layer 10 and to be attached on the 5th line of splicing ear 18 with mode of printing;
This first conductive film layer 11 can be tin indium oxide (ITO:Indium Tin Oxide);
This site layer 12 is with mode of printing or be covered on the first above-mentioned conductive film layer 11;
This first insulation course 13 is the peripheries that are printed in above-mentioned site layer 12 with mode of printing;
This four silver medal line conductive layer 14, be lead group with four connection controllers of mode of printing printing on above-mentioned first insulation course 13, have link 14a on the end of this lead group with signal output;
This second conductive film layer 16 can be tin indium oxide (ITO:Indium Tin Oxide);
This thin layer 17 is constituted by a clear films;
This splicing ear 18 is a diaphragm type sheet transfer wire, is connected with link 14a, the 19a of above-mentioned four silver medal line conductive layers 14 and the 5th lead 19, electrical signal that touch screen produces can be exported.After above-mentioned manufacturing is finished, promptly form one and have the another kind five silver medal line voltage-type touch screens of cancelling noise.
Above-mentioned touch screen is connected in any palmtop computer or notebook computer, when perhaps using on the desktop computer, the 5th lead 19 of this touch screen can be cancelled the noise that liquid crystal display screen (LCD) or cathode ray tube (CRT) background light source are produced, and isolating exterior electromagnetic interference (EMI) and Radio frequency interference (RFI) (RFI), allow the user on touch screen, write, draw or when clicking every function, not disturbed by any noise, cause and write, the lines of drawing do not have again crooked phenomenon to take place, and can accurately sense and click the position, make the electrical signal of output can not cause vicious judgement of computer or identification.
This consults shown in Figure 8, is the structure decomposing schematic representation of first kind of six silver medal line voltage-type touch screen of the present invention.As shown in the figure, add at the touch screen of traditional five silver medal line voltage-types and print 30, the six leads 30 of one bar of the 6th lead and allow the touch screen of five silver medal line voltage-types form one to have the six silver medal line formula touch screens of eliminating noise.
The above-mentioned touch screen of carrying, constituted by a glassy layer 20, one first conductive film layer 21, a site layer 22, one first insulation course 23, a linearization patterned layers 29, First Five-Year Plan silver line conductive layer 24, one second insulation course 25, one second conductive film layer 26, a thin layer 27 and a splicing ear 28, wherein, article six, lead 30, be to increase to be used for detecting noise in traditional five line structures, the noise that the controller utilization is detected cuts the noise of touch-control signal;
This first conductive film layer 21 can be tin indium oxide (ITO:Indium Tin Oxide);
This site layer 22 is with mode of printing or be covered on the first above-mentioned conductive film layer 21;
This first insulation course 23 is the peripheries that are printed in above-mentioned site layer 22 with mode of printing;
This five silver medal line conductive layer 24, be lead group with six connection controllers of mode of printing printing on above-mentioned first insulation course 23, have link 24a on the end of this lead group with signal output;
This thin layer 27 is constituted by a clear films;
This second conductive film layer 26 can be a tin indium oxide (ITO:Indium Tin Oxide);
This splicing ear 28 is a diaphragm type sheet transfer wire, is connected with link 24a, the 30a of above-mentioned five silver medal line conductive layers 24 and the 6th lead 30, electrical signal that touch screen produces can be exported.After above-mentioned manufacturing is finished, promptly form one and have the six silver medal line voltage-type touch screens of cancelling noise.
Above-mentioned touch screen is connected in any palmtop computer or notebook computer, when perhaps using on the desktop computer, the 6th lead 30 of this touch screen can be cancelled the noise that liquid crystal display screen (LCD) or cathode ray tube (CRT) background light source are produced, and cancellation external electromagnetic interference (EMI) and Radio frequency interference (RFI) (RFI), allow the user on touch screen, write, draw or when clicking every function, not disturbed by any noise, cause and write, the lines of drawing do not have again crooked phenomenon to take place, and can accurately sense and click the position, make the electrical signal of output can not cause vicious judgement of computer or identification.
Seeing also shown in Figure 9ly, is the structure decomposing schematic representation of second kind of six silver medal line voltage-type touch screen of the present invention.As shown in the figure, add in the touch screen glass back of traditional five silver medal line voltage-types and print 30, the six leads 30 of one bar of the 6th lead and allow the control screen device of five line voltage-types form one to have the six silver medal line formula touch screens of eliminating noise.
The above-mentioned touch screen of carrying, be by a glassy layer 20, one first conductive film layer 21, a site layer 22, one first insulation course 23, a linearization patterned layers 29, First Five-Year Plan silver line conductive layer 24, a thin layer 27, one second conductive film layer 26, one the 6th lead 30, and a splicing ear 28 constituted, article six, lead 30 increases in traditional five silver medal line structures, to be used for detecting noise, the noise that the controller utilization is detected cuts the noise of touch-control signal;
This conductive film layer, i.e. first conductive film layer 21 is to be imprinted on mode of printing to be printed on the glassy layer 20 and to be attached on the 6th line of splicing ear;
This first conductive film layer 21 can be a tin indium oxide (ITO:Indium Tin Oxide);
This site layer 22 is with mode of printing or be covered on the first above-mentioned conductive film layer 21;
This first insulation course 23 is the peripheries that are printed in above-mentioned site layer 22 with mode of printing;
This five silver medal line conductive layer 24 is to print the lead group of five connection controllers on above-mentioned first insulation course 23 with mode of printing;
This thin layer 27 is constituted by a clear films;
This second conductive film layer 26 can be a tin indium oxide (ITO:Indium Tin Oxide);
This splicing ear 28 is a diaphragm type sheet transfer wire, is connected with link 24a, the 30a of above-mentioned five silver medal line conductive layers 24 and the 6th lead 30, electrical signal that touch screen produces can be exported.After above-mentioned structure is finished, promptly form one and have the another kind six silver medal line voltage-type touch screens of cancelling noise.
Above-mentioned touch screen is connected in any palmtop computer or notebook computer, when perhaps using on the desktop computer, the 6th lead 30 of this touch screen can be isolated the noise that liquid crystal display screen (LCD) or cathode ray tube (CRT) background light source are produced, and cancellation external electromagnetic interference (EMI) and Radio frequency interference (RFI) (RFI), allow the user on touch screen, write, draw or when clicking every function, not disturbed by any noise, cause and write, the lines of drawing do not have again crooked phenomenon to take place, and can accurately sense and click the position, make the electrical signal of output can not cause vicious judgement of computer or identification.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. one kind has the touch screen of isolating noise, for having the detection current type touch screen of eliminating noise, this touch screen includes: a glassy layer (1), one conductive film layer (2), one linearization patterned layers (3), one insulation course (4), a First Five-Year Plan silver line conductive layer (5) and a splicing ear (7), wherein four leads in the five silver medal line conductive layers (5) are connected to four ends of linearization patterned layers (3), four be connected to controller in addition, article five, an end of lead (6) is unsettled, the other end is received controller simultaneously, it is characterized in that, described the 5th lead (6) is printed on the back side of glassy layer (1), unsettled the 5th lead (6) of an above-mentioned end is used to detect the noise that influences controller, controller utilizes the detected signal noise of the 5th lead (6) to eliminate the interference of controller noise, forms a five-line with cancellation noise and detects the current type touch screen.
2. the touch screen with isolation noise according to claim 1 is characterized in that, described the 5th lead (6) extension with detection current type touch screen of cancellation noise is provided with a link (6a).
3. the touch screen with isolation noise according to claim 1 is characterized in that, described the 5th lead (6) with detection current type touch screen of eliminating noise is printed to rectangular-shaped frame line.
4. touch screen of isolating noise, for five lines with cancellation noise detect the voltage-type touch screen, this touch screen is by a glassy layer (10), one first conductive film layer (11), one site layer (12), one first insulation course (13), First Five-Year Plan silver line conductive layer (14) and one second insulation course (15), one second conductive film layer (16), one thin layer (17) and a splicing ear (18) constitute, wherein four leads in the five silver medal line conductive layers (14) are connected to the two ends of first conductive film layer (11) and second conductive film layer (16) respectively, four be connected to controller in addition, article five, an end of lead (19) is unsettled, the other end is received controller simultaneously, it is characterized in that, described the 5th lead (19) extension is provided with a link (19a), article five, lead (19) is printed on the back side of glassy layer (10), unsettled the 5th lead (19) of an above-mentioned end is used to detect the noise that influences controller, controller utilizes the detected signal noise of the 5th lead (19) to eliminate the interference of controller noise, forms a five-line with cancellation noise and detects the voltage-type touch screen.
5. the touch screen with isolation noise according to claim 4 is characterized in that, the 5th lead (19) that described five lines with cancellation noise detect in the voltage-type touch screen is printed to rectangular-shaped frame line.
6. one kind has the touch screen of isolating noise, for six lines with cancellation noise detect the voltage-type touch screen, this touch screen is by a glassy layer (20), one first conductive film layer (21), one linearization Butut (29), one site layer (22), one first insulation course (23), First Five-Year Plan silver line conductive layer (24) and one second insulation course (25), one second conductive film layer (26), one thin layer (27) and a splicing ear (28) constitute, wherein four leads in the five silver medal line conductive layers (24) are connected to four ends of linearization Butut (29), four be connected to controller in addition, article six, an end of lead (30) is unsettled, the other end is received controller simultaneously, it is characterized in that, described the 6th lead (30) extension is provided with a link (30a), article six, lead (30) is printed on the back side of glassy layer (20), unsettled the 6th lead (30) of an above-mentioned end is used to detect the noise that influences controller, controller utilizes the detected signal noise of the 6th lead (30) to eliminate the interference of controller noise, and the six line formulas with cancellation noise that form detect the voltage-type touch screen.
7. the touch screen with isolation noise according to claim 6 is characterized in that, the 6th lead (30) that described six lines with cancellation noise detect in the voltage-type touch screen is printed to rectangular-shaped frame line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00134509 CN1133118C (en) | 2000-12-07 | 2000-12-07 | Touch control screen capable of isolating stray signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00134509 CN1133118C (en) | 2000-12-07 | 2000-12-07 | Touch control screen capable of isolating stray signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1357818A CN1357818A (en) | 2002-07-10 |
| CN1133118C true CN1133118C (en) | 2003-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00134509 Expired - Fee Related CN1133118C (en) | 2000-12-07 | 2000-12-07 | Touch control screen capable of isolating stray signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1133118C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2567694Y (en) * | 2002-09-16 | 2003-08-20 | 台均实业有限公司 | Touch control display screen with conductor lattice electromagnetic induction layer in it |
| CN107870698A (en) * | 2018-01-04 | 2018-04-03 | 苏州敏柔电子科技有限公司 | A kind of touch sensing and its production equipment |
| CN114594871A (en) * | 2020-12-07 | 2022-06-07 | 矽统科技股份有限公司 | Noise suppression touch control dimming device and noise suppression method thereof |
| CN113507329B (en) * | 2021-06-22 | 2022-06-17 | 厦门翔澧工业设计有限公司 | Glass backboard for filtering clutter and equipment with glass backboard |
-
2000
- 2000-12-07 CN CN 00134509 patent/CN1133118C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1357818A (en) | 2002-07-10 |
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