CN103294279B - The contact panel of low complex degree single layered transparent electrode pattern and method for sensing thereof - Google Patents
The contact panel of low complex degree single layered transparent electrode pattern and method for sensing thereof Download PDFInfo
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Abstract
The present invention proposes a kind of contact panel and method for sensing thereof of low complex degree single layered transparent electrode pattern, and it comprises a substrate, N number of induction electrode and M wire.Described N number of induction electrode is distributed on substrate, a described M arrangement of conductors is on substrate, each wire in a described M wire has a specific resistance value, each wire connects two induction electrodes, and any one induction electrode of described N number of induction electrode is connected with at least another induction electrode via at least one wire, each induction electrode in described N number of induction electrode is made to have different capacity resistance cime constants, wherein, the different drive singal of N number of frequency via described N number of induction electrode one of them and sequentially put on described N number of induction electrode, with the induction electrode judging to touch by the capacitance variations on the N number of induction electrode of detecting, N, M is positive integer.
Description
Technical field
The present invention relates to contact panel technical field, particularly relate to a kind of contact panel and method for sensing thereof of low complex degree single layered transparent electrode pattern.
Background technology
The know-why of contact panel is when finger or other medium contacts are to screen, according to different induction mode, and detecting voltage, electric current, sound wave or infrared ray etc., and then measure the coordinate position of touch point.Such as electric resistance touch-control panel is and utilizes upper and lower interelectrode potential difference (PD), in order to calculate compression point position thus to detect touch point position.Capacitance type touch-control panel is the capacitance variations utilizing the electrostatical binding between the transparency electrode of arrangement and human body to produce, and passes through produced curtage and detects its coordinate.
Fig. 1 is the schematic diagram of existing Double-layered transparent electrode structure, and transparency electrode is arranged according to X-axis and Y direction.Separate with glass or plastics between different transparent electrode layer.In Fig. 1, the advantage of Double-layered transparent electrode structure to detect two or more touch points, possesses the good linearity simultaneously.But its shortcoming is then that material cost is high, and manufacturing process is loaded down with trivial details.
In order to overcome the high cost problem of Double-layered transparent electrode structure, a kind of solution is for using single layered transparent electrode structure.Fig. 2 is the schematic diagram of existing single layered transparent electrode structure, and it adopts the single sensed layer of triangle pattern (Pattern) structure.The Touch Screen advantage of single layered transparent electrode structure is can save material cost and simplify manufacturing process.This kind of single layered transparent electrode structure can realize the coordinate identification of two-dimensional directional, but its shortcoming is then for can only detect two touch points, and two touch points particularly in same axial line can be judged to be broken into single touch points.
For solving the problem of single layered transparent electrode structure detecting multi-point touch, Fig. 3 is another existing single layered transparent electrode structural representation.The single layered transparent electrode structure of Fig. 3 its can realize the detecting of true multi-point touch, and have and save material cost and simplify the advantage of manufacturing process.But the single layered transparent electrode structure of Fig. 3 has the shortcoming of cabling complexity, also because cabling occupies area, the linearity is caused to be deteriorated.Adopt 4.3 inches of multi-point touch screen of the single layered transparent electrode structural design of Fig. 3 for one, approximately need 12 sensing points in the horizontal direction, and approximately need 20 sensing points in the vertical direction.240 sensing points need be divided into altogether, could in 4.3 inches of multi-point touch screen, realize multi-point touch and have enough degree of accuracy.Because each sensing points needs one to sense cabling, in order to as and touch-control integrated circuit (IC) between online, 240 sensing points just need 240 cablings, make cabling quite complicated, and then unfavorable pattern (Pattern) design.Therefore, the space that is still improved of existing single layered transparent electrode structure.
Summary of the invention
The technical matters that the present invention solves is the contact panel and the method for sensing thereof that provide a kind of low complex degree single layered transparent electrode pattern, to provide the degree of accuracy of good touch detection, and improves the linearity of touch detection, saves cost and job sequence simultaneously.
According to the present invention one characteristic, the present invention proposes a kind of contact panel of low complex degree single layered transparent electrode pattern, and it comprises a substrate, N number of induction electrode and M wire.Described N number of induction electrode is distributed on described substrate, and wherein N is positive integer.A described M arrangement of conductors is on described substrate, wherein M is positive integer, each wire of a described M wire has a specific resistance value, each wire connects two induction electrodes, and any one induction electrode of described N number of induction electrode is connected with at least another induction electrode via at least one wire, each induction electrode of described N number of induction electrode is made to have different capacity resistance cime constants, wherein, the drive singal that N number of frequency is different send to respectively in described N number of induction electrode one of them and send to described N number of induction electrode in order, and the capacitance variations detected on described N number of induction electrode, and then judge by the induction electrode touched.
According to another characteristic of the present invention, the present invention proposes a kind of method for sensing of contact panel of low complex degree single layered transparent electrode pattern, and the contact panel of described low complex degree single layered transparent electrode pattern has a substrate; Be distributed in the N number of induction electrode on described substrate, wherein N is positive integer; And M the wire be distributed on described substrate, wherein M is positive integer, each wire of a described M wire has a specific resistance value, each wire connects two induction electrodes, and any one induction electrode of described N number of induction electrode is connected with at least another induction electrode via at least one wire, makes each induction electrode of described N number of induction electrode have different capacity resistance cime constants.Described method for sensing comprises: (A) sequentially inputs the different drive singal of N number of frequency via one of them of described N number of induction electrode to described N number of induction electrode; (B) for each input drive signal, the capacitance variations corresponding to described N number of induction electrode is detected; And (C) judges the induction electrode that touches in described N number of induction electrode according to N capacitance variations measuring.
According to another characteristic of the present invention, the present invention proposes a kind of contact panel of low complex degree single layered transparent electrode pattern, and it comprises a substrate and K row induction electrode.Described K row induction electrode is distributed on described substrate with a first direction, each row induction electrode has L induction electrode, each arranges between a described L induction electrode and connects with L-1 wire, and each row induction electrode described is connected to a touch-control circuit via a resistance RL, described L-1 wire of each row has a specific resistance value all respectively, each wire connects two induction electrodes, make each arrange a described L induction electrode and there is different capacity resistance cime constants respectively, wherein, the different drive singal of L frequency arranges a described L induction electrode via each, and one of them puts on each in order and arranges a described L induction electrode, in order to by detecting, each arranges the capacitance variations on a described L induction electrode, and then judge by the induction electrode touched.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing Double-layered transparent electrode structure;
Fig. 2 is the schematic diagram of existing single layered transparent electrode structure;
Fig. 3 is the schematic diagram of another existing single layered transparent electrode structure;
Fig. 4 is the contact panel schematic diagram of a kind of low complex degree single layered transparent electrode of the present invention pattern;
Fig. 5 is induction electrode pattern schematic diagram of the present invention;
Fig. 6 is another schematic diagram that induction electrode pattern of the present invention connects;
Fig. 7 is the another schematic diagram that induction electrode pattern of the present invention connects;
Fig. 8 is the schematic diagram again that induction electrode pattern of the present invention connects;
Fig. 9 is the another schematic diagram that induction electrode pattern of the present invention connects;
Figure 10 is the method for sensing flow process of a kind of low complex degree single layered transparent electrode of the present invention pattern contact panel
Figure;
Figure 11 is the equivalent circuit diagram of induction electrode and wire in Fig. 4 of the present invention;
Figure 12 is the application schematic diagram of a kind of low complex degree single layered transparent electrode of the present invention pattern contact panel.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
Fig. 4 is the schematic diagram of a kind of low complex degree single layered transparent electrode of the present invention pattern contact panel 400, and it comprises a substrate 410, N number of induction electrode 420 and M wire 430, and wherein N, M are positive integer, and in this embodiment, for convenience of description, N is 4 and M is 3.
Described N number of induction electrode 420 and a described M wire 430 are distributed on described substrate 410.Each wire 430 described has a specific resistance value, and in the present embodiment, described specific resistance value is preferably a resistance value.Each wire 430 described connects two induction electrodes 420, and any one induction electrode 420 described is connected with at least another induction electrode 420 via at least one wire 430, makes each induction electrode 420 described have different capacity resistance cime constants.In the present embodiment, described substrate 410 is furnished with 4 and is denoted as SEN1, SEN2, SEN3, induction electrode 420 and 3 resistance values of SEN4 are R1, R2, the wire 430 of R3, the induction electrode 420 being denoted as SEN1 is that the wire 430 of R1 is connected with the induction electrode 420 being denoted as SEN2 via resistance value, the induction electrode 420 being denoted as SEN2 is R1 via resistance value, the wire of R2 respectively be denoted as SEN1, the induction electrode 420 of SEN2 connects, the induction electrode 420 being denoted as SEN3 is R2 via resistance value, the wire 430 of R3 respectively be denoted as SEN2, the induction electrode 420 of SEN4 connects, and the induction electrode 420 being denoted as SEN4 via resistance value be R3 wire 430 be denoted as SEN3 induction electrode 420 and be connected.
In the present embodiment contact panel 400, described drive singal 440 respectively by one of them induction electrode 420 of described N number of induction electrode 420, is sequentially sent to described N number of induction electrode 420 by N number of drive singal 440 with different frequency by one driver 480 of touch-control circuit 40.See Fig. 4, N number of drive singal 440 with different frequency by being denoted as the induction electrode 420 of SEN1, is denoted as SEN1, the induction electrode 420 of SEN2, SEN3, SEN4 described in being sent to by described drive singal 440 by described driver 480.The capacitance variations on N number of induction electrode 420 sequentially detected by one sensor 490 of described touch-control circuit 40 by one of them induction electrode 420 of described N number of induction electrode 420, and by induction electrode 420 that the capacitance variations and judging on the described N number of induction electrode 420 of detecting is touched.See Fig. 4, described sensor 490, by being denoted as the induction electrode 420 of SEN1, is sequentially denoted as SEN1, the capacitance variations on the induction electrode 420 of SEN2, SEN3, SEN4 described in detecting.Wherein, described N number of drive singal 440 is pulse signal and the frequency Fj of a jth drive singal 440 is greater than the frequency Fj+1 of jth+1 drive singal 440, and 1≤j≤N-1, the pulse number of described N number of drive singal 440 is 1 to one given number.In the present embodiment, for applying frequency is F1, F2, F3,4 drive singal 440 of F4, wherein F1>F2>F3>F4, and the pulse number of drive singal 440 is 3, specifically, frequency is first that the drive singal 440 of F1 puts on induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1 by driver 480, SEN2, SEN3, SEN4), and sensor 490 detects induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1, SEN2, SEN3, SEN4) on capacitance variations; Then, be that the drive singal 440 of F2 puts on induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1 by frequency, SEN2, SEN3, and sensor 490 detects induction electrode 420 (SEN1, SEN2 via the induction electrode 420 being denoted as SEN1 SEN4), SEN3, SEN4) on capacitance variations; Then, be that the drive singal 440 of F3 puts on induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1 by frequency, SEN2, SEN3, and sensor 490 detects induction electrode 420 (SEN1, SEN2 via the induction electrode 420 being denoted as SEN1 SEN4), SEN3, SEN4) on capacitance variations; Finally, be that the drive singal 440 of F4 puts on induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1 by frequency, SEN2, SEN3, and sensor 490 detects induction electrode 420 (SEN1, SEN2 via the induction electrode 420 being denoted as SEN1 SEN4), SEN3, SEN4) on capacitance variations.
Fig. 5 is pattern (pattern) schematic diagram of induction electrode 420 of the present invention.Its illustrate described N number of induction electrode 420 can be following shape one of them: rectangle, square, rhombus, circle, triangle, pentagon, hexagon, octagon or hexagram.
Described N number of induction electrode 420 is the transparent induction electrodes formed by transparent conductive material.Described transparent conductive material be selected from following group one of them: indium tin oxide (ITO), indium-zinc oxide, zinc-tin oxide, conducting polymer and carbon nanotube.
Fig. 6 is another schematic diagram that the pattern (pattern) of induction electrode 420 of the present invention connects.In Fig. 4, Fig. 5, Fig. 6, i-th wire 430 (having resistance value Ri) of a described M wire 430 connects i-th induction electrode (being denoted as SENi) and the i-th+1 induction electrode (being denoted as SENi+1) of described N number of induction electrode 420, series winding form is formed to allow described N number of induction electrode 420, in the middle of, 1≤i≤N-1, and N=M+1.
Fig. 7 is the another schematic diagram that the pattern (pattern) of induction electrode 420 of the present invention connects.In Fig. 7, induction electrode 420 connects into starlike opening up general (startopology).Fig. 8 is that the pattern (pattern) of induction electrode 420 of the present invention connects a schematic diagram again.In Fig. 8, induction electrode 420 with series winding and parallel form coexist and formed netted open up general.
In Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, each wire of a described M wire 430 has a specific resistance value, and in the present embodiment, described specific resistance value is preferably resistance value, and can be equivalent to a resistance.
Fig. 9 is the another schematic diagram that the pattern (pattern) of induction electrode 420 of the present invention connects.Wherein, each wire of a described M wire 430 is that bending wiring is to form required resistance value.
Figure 10 is the method for sensing process flow diagram of the contact panel 400 of a kind of low complex degree single layered transparent electrode of the present invention pattern.Please with reference to Fig. 4, the contact panel 400 of described low complex degree single layered transparent electrode pattern has a substrate 410, be distributed in the N number of induction electrode 420 on described substrate, and M the wire 430 be distributed on described substrate, wherein N, M is positive integer, each wire 430 of a described M wire 430 has a specific resistance value, in the present embodiment, described specific resistance value is preferably resistance value, each wire 430 connects two induction electrodes 420, and any one induction electrode 420 of described N number of induction electrode 420 is connected with at least another induction electrode 420 through at least one wire 430, to make each induction electrode 420 of described N number of induction electrode 420, there is different capacity resistance cime constants.Described method for sensing is first in step (A), driver 480 via described N number of induction electrode 420 one of them and the different drive singal of N number of frequency 440 is sequentially inputted to described N number of induction electrode 420, wherein, described N number of drive singal 440 is pulse signal and the frequency Fj of a jth drive singal 440 is greater than the frequency Fj+1 of jth+1 drive singal 440,1≤j≤N-1, the pulse number of described N number of drive singal 440 is 1 to one given number.In this demonstration example, the pulse number of described N number of drive singal 440 is 3, frequency is first that the drive singal 440 of F1 puts on induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1 by driver 480, SEN2, SEN3, SEN4), and sensor 490 detects induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1, SEN2, SEN3, SEN4) on capacitance variations; Then, be that the drive singal 440 of F2 puts on induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1 by frequency, SEN2, SEN3, and sensor 490 detects induction electrode 420 (SEN1, SEN2 via the induction electrode 420 being denoted as SEN1 SEN4), SEN3, SEN4) on capacitance variations; Then, be that the drive singal 440 of F3 puts on induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1 by frequency, SEN2, SEN3, and sensor 490 detects induction electrode 420 (SEN1, SEN2 via the induction electrode 420 being denoted as SEN1 SEN4), SEN3, SEN4) on capacitance variations; Finally, be that the drive singal 440 of F4 puts on induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1 by frequency, SEN2, SEN3, and sensor 490 detects induction electrode 420 (SEN1, SEN2 via the induction electrode 420 being denoted as SEN1 SEN4), SEN3, SEN4) on capacitance variations.
Figure 11 is the equivalent circuit diagram of induction electrode 420 and wire 430 in Fig. 4 of the present invention.It is to be denoted as SEN1, and 4 induction electrodes of SEN2, SEN3, SEN4 and resistance value are 3 wires of R1, R2, R3 is example, and ability and those of ordinary skill can expand to N number of induction electrode 420 based on technology disclosed in this invention, therefore repeat no more.Shown in Fig. 4 and Figure 11, utilize cabling or resistance to be interconnected 4 induction electrodes, insert calculated resistance (R1 ~ R3) between induction electrode, equivalent resistance capacitor model as shown in figure 11, touch-control circuit 40 and be denoted as SEN1 first induction electrode 420 between group resist for RL, be denoted as SEN1, SEN2, SEN3, equivalent capacity between the induction electrode 420 of SEN4 and the earth is respectively CSEN1, CSEN2, CSEN3, CSEN4.
Because R3CSEN4, R2CSEN3, R1CSEN2 and RLCSEN1 have different resistance capacitance (RC) time constants respectively, time constant is designed to R3CSEN4>R2CSEN3>R1CSEN2Great T.GreaT.GTRLCSEN1, that is each electric capacity CSEN can utilize frequency reconnaissance range different.Because R3CSEN4 can be up to F4, R2CSEN3 and can be up to F3, R1CSEN2 and can be up to F2, RLCSEN1 and can be up to F1 by detecting frequency by detecting frequency by detecting frequency by detecting frequency.Now because the relation of time constant design F4<F3<F2<F1, making when detecting frequency is F1 can only the change of sense capacitance CSEN1, electric capacity CSEN2 ~ CSEN4 then make because time constant is excessive detecting frequency F1 detect less than, with should detecting frequency be F2 time can the change of sense capacitance CSEN1 ~ CSEN2 detect less than electric capacity CSEN3 ~ CSEN4, when detecting frequency is F3, the change of energy sense capacitance CSEN1 ~ CSEN3 is detected less than electric capacity CSEN4, the change of CSEN1 ~ CSEN4 can be sensed when detecting frequency is F4, therefore utilize the drive singal 440 that applying frequency is respectively F4 ~ F1, the variable quantity of electric capacity CSEN1 ~ CSEN4 can be obtained individually, and then judge touch point position.
Therefore in step (B), for the drive singal 440 of each input, sensor 490 measures the capacitance variations corresponding to described N number of induction electrode 420, that is, in the present embodiment, be the drive singal 440 of F1 for incoming frequency, sensor 490 detects induction electrode 420 (SEN1 via the induction electrode 420 being denoted as SEN1, SEN2, SEN3, SEN4) on capacitance variations; Then, be the drive singal 440 of F2 for incoming frequency, sensor 490 is via being denoted as the induction electrode 420 of SEN1 and the capacitance variations detected on induction electrode 420 (SEN1, SEN2, SEN3, SEN4); For the drive singal 440 that incoming frequency is F3, sensor 490 is via being denoted as the induction electrode 420 of SEN1 and the capacitance variations detected on induction electrode 420 (SEN1, SEN2, SEN3, SEN4); For the drive singal 440 that incoming frequency is F4, sensor 490 is via being denoted as the induction electrode 420 of SEN1 and the capacitance variations detected on induction electrode 420 (SEN1, SEN2, SEN3, SEN4).And in step (C), judge the induction electrode 420 touched in described N number of induction electrode 420 according to N the capacitance variations measured.
Because R3CSEN4, R2CSEN3, R1CSEN2 and RLCSEN1 can design in advance, therefore, touch-control circuit 40 can frequency of utilization be 4 induction electrode 420 (SEN1 that the drive singal 440 of F1 inputs in Fig. 4 in advance, SEN2, SEN3, SEN4) and wire 430 (R1, R2, R3) in, and measure when the induction electrode 4201 being denoted as SEN1 has touching situation and when not touching situation, the variable quantity of electric capacity CSEN1; And the drive singal 440 that prior frequency of utilization is F2 inputs to 4 induction electrode (SEN1 in Fig. 4, SEN2, SEN3, and wire (R1 SEN4), R2, R3) in, and measure when induction electrode SEN1 and SEN2 has touching situation and when not touching situation, the capacitance change of CSEN1 and CSEN2.In like manner, sequentially frequency of utilization is the drive singal 440 of F3 and F4, and obtains the capacitance change of CSEN1, CSEN2, CSEN3, CSEN4 respectively.The described capacitance change that waits is stored in a form by touch-control circuit 40, in step (C), can judge the induction electrode 420 touched in described N number of induction electrode 420 according to N the capacitance variations measured.
Figure 12 is the application schematic diagram of the contact panel 400 of a kind of low complex degree single layered transparent electrode of the present invention pattern.It is installed on a substrate 1210, and just induction electrode 420 is divided into K row (column), and K row induction electrode is distributed on described substrate along a first direction (X).Each row (column) induction electrode has L induction electrode 420, connect with L-1 wire between L induction electrode 420 of each row, and each row is connected to described touch-control circuit 40 via a resistance RL, wherein, these wires described have a specific resistance value respectively.As shown in figure 12, it shows One's name is legion of induction electrode 420 and the distance d between induction electrode 420 and induction electrode 420 can reduce effectively, therefore the area that induction electrode 420 is contained becomes large, incessantly can provide the degree of accuracy of good touch detection, also can improve the linearity of touch detection.
As shown in the above description, different sensing points links together by adding impedance between sensing points from sensing points by the technology of the present invention, reaches pattern (Pattern) design and simplifies.Because multiple induction electrode 420 is linked together, so be which induction electrode 420 is touched to differentiate, therefore need to add resistance.Simultaneously because each induction electrode 420 can equivalence be an electric capacity, calculated resistance is added between induction electrode 420, just can utilize the characteristic of RC low-pass filter, when the signal of different frequency enters different induction electrode 420, semaphore all can there are differences, and utilizes this otherness to differentiate touch point.
In sum, induction electrode of the present invention connects via wire, a kind of low complex degree single layered transparent electrode pattern can be formed, distance between induction electrode and induction electrode can reduce effectively, and the area making induction electrode contain becomes large, the degree of accuracy of good touch detection can be provided, also can improve the linearity of touch detection, save cost and job sequence simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (11)
1. a contact panel for low complex degree single layered transparent electrode pattern, is characterized in that, comprises:
One substrate;
N number of induction electrode, is distributed on described substrate, and wherein N is positive integer; And
M wire, be distributed on described substrate, wherein M is positive integer, a described M wire has a specific resistance value respectively, each wire connects two induction electrodes, and described N number of induction electrode is connected with at least another induction electrode via at least one wire respectively, makes described N number of induction electrode have different capacity resistance cime constants respectively
Via described N number of induction electrode, one of them sends to described N number of induction electrode to the different drive singal of N number of frequency in order respectively, and detects the capacitance variations on described N number of induction electrode, and then judges by the induction electrode touched.
2. the contact panel of low complex degree single layered transparent electrode pattern as claimed in claim 1, it is characterized in that, i-th wire connects i-th induction electrode and the i-th+1 induction electrode, series winding form is formed in order to allow described N number of induction electrode, in the middle of, 1≤i≤N-1, and N=M+1.
3. the contact panel of low complex degree single layered transparent electrode pattern as claimed in claim 1, it is characterized in that, described N number of induction electrode is transparent induction electrode.
4. the contact panel of low complex degree single layered transparent electrode pattern as claimed in claim 1, it is characterized in that, described N number of induction electrode can be following shape one of them: rectangle, square, rhombus, circle, triangle, hexagon, octagon or hexagram.
5. the contact panel of low complex degree single layered transparent electrode pattern as claimed in claim 1, it is characterized in that, a described M wire formed by a resistance respectively.
6. the contact panel of low complex degree single layered transparent electrode pattern as claimed in claim 1, is characterized in that, a described M wire is respectively bending wiring to form required resistance value.
7. the contact panel of low complex degree single layered transparent electrode pattern as claimed in claim 1, it is characterized in that, the frequency Fj of a jth drive singal is greater than the frequency Fj+1 of jth+1 drive singal, 1≤j≤N-1.
8. the method for sensing of the contact panel of a low complex degree single layered transparent electrode pattern, it is characterized in that, described low complex degree single layered transparent electrode pattern touch pad has a substrate, is distributed in the N number of induction electrode on described substrate and is distributed in M wire on described substrate, and wherein N, M are positive integer; A described M wire has a specific resistance value respectively, and any one induction electrode is connected with at least another induction electrode via at least one wire in described N number of induction electrode, make described N number of induction electrode have different capacity resistance cime constants respectively, described method for sensing comprises:
(A) via one of them induction electrode of described N number of induction electrode, N number of drive singal with different frequency is inputted in order to described N number of induction electrode;
(B) for described N number of drive singal of input, the capacitance variations corresponding to described N number of induction electrode is detected respectively; And
(C) according to N the capacitance variations obtained, in order to judge to produce the induction electrode touched in described N number of induction electrode.
9. method for sensing as claimed in claim 8, it is characterized in that, the frequency Fj of a jth drive singal is greater than the frequency Fj+1 of jth+1 drive singal, 1≤j≤N-1.
10. method for sensing as claimed in claim 8, it is characterized in that, described N number of drive singal is pulse signal, and the pulse number of described N number of drive singal is 1 to one given number.
The contact panel of 11. 1 kinds of low complex degree single layered transparent electrode patterns, it comprises:
One substrate;
K row induction electrode, be distributed on described substrate with a first direction, each row induction electrode has L induction electrode, each arranges between a described L induction electrode and connects with L-1 wire, and each row induction electrode described is connected to a touch-control circuit via a resistance RL, described L-1 wire of each row has a specific resistance value respectively, and each wire connects two induction electrodes, makes each arrange a described L induction electrode and has different capacity resistance cime constants respectively;
Wherein, K, L are positive integer, the different drive singal of L frequency arrange a described L induction electrode via each one of them put on each in order and arrange a described L induction electrode, in order to by detecting, each arranges the capacitance variations on a described L induction electrode, and then judge by the induction electrode touched.
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| CN104850283B (en) * | 2014-02-14 | 2018-02-02 | 晨星半导体股份有限公司 | Self-capacitance touch panel electrode using zigzag line segment to increase resistance value |
| CN105302346A (en) * | 2014-07-11 | 2016-02-03 | 新益先创科技股份有限公司 | Sensing electrode structure |
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Effective date of registration: 20180716 Address after: No. 2800 innovation Avenue, Hefei new hi tech Zone, Anhui, Hefei, 1 phase 1408, zone F, phase two, innovation industrial park. Patentee after: Hefei Hao Hao electronic technology Co., Ltd. Address before: Hsinchu Science Park, Taiwan, Taiwan, China Patentee before: Xuyao Science and Technology Co., Ltd. |