CN104657007A - Single-layer capacitor touch input device capable of reducing outgoing lines and drive method thereof - Google Patents
Single-layer capacitor touch input device capable of reducing outgoing lines and drive method thereof Download PDFInfo
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- CN104657007A CN104657007A CN201310590278.4A CN201310590278A CN104657007A CN 104657007 A CN104657007 A CN 104657007A CN 201310590278 A CN201310590278 A CN 201310590278A CN 104657007 A CN104657007 A CN 104657007A
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- input media
- outlet line
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention discloses a single-layer capacitor touch input device capable of reducing outgoing lines and a drive method thereof. The single-layer capacitor touch input device comprises first electrodes belonging to each electrode chain and second electrodes belonging to each electrode group. The first electrodes and the second electrodes are alternatively arranged in a second direction; in the first direction, at least two electrode chains are arranged in a coordinate range of any second electrode. According to the single-layer capacitor touch input device, the second electrodes in the electrode groups and the first electrodes in the electrode chains are coupled to reduce the quantity of the second electrodes, so that the quantity of the second electrode outgoing lines which are individually connected with the second electrodes are greatly reduced, the linearity and the precision of the touch detection results are improved, the electrode connecting lines in the effective touch area and the area of the touch area occupied by the outgoing lines are reduced, the reliability of the touch input device is improved, the process manufacturing yield is increased and the production cost is lowered.
Description
Technical field
The present invention relates to the touching input media based on mutual capacitance principle detecting touching input signal and electrode driving method thereof, particularly relate to individual layer mutual capacitance touching input media and electrode driving method thereof.
Background technology
Prior art individual layer mutual capacitance touching input media comprises the first electrode and the second electrode, and any one in two kinds of electrodes is used as drive electrode, another kind of just as sensing electrode.As shown in Figure 7, in the rectangular coordinate system be made up of X-direction coordinate and Y-direction coordinate, the first electrode 91 is laid along X-direction, and each first electrode 91 extends along Y direction, and each electrode forms the first electrode channel; In order to overcome the high technology cost that two-layer electrode is brought, adopt single-layer electrodes technique, between the first electrode 91, be provided with the second electrode 92, the second electrode 92 be under same Y-axis coordinate forms the second electrode channel.For the first electrode channel, because first electrode channel is made up of first electrode 91 exactly, the first electrode channel only needs the extension line 93 identical with number of channels to be drawn directly to touch area by electric signal outward.And for the second electrode channel, because second electrode channel is made up of the second electrode 92 identical with the first electrode 91 quantity, second electrode channel just needs the extension line 93 identical with the first electrode 91 quantity to be drawn outside touch area by electric signal.For the touching input media be made up of M the first electrode channel and N number of second electrode channel, just need M+N × M root extension line 93.The touching input media of 4 × 4 passages just needs 20 extension lines 93 as shown in Figure 7.Well imagine, along with the increase of number of channels will produce the extension line be doubled and redoubled, thus bring following defect and weak point:
1. when the electrode of prior art individual layer touching input media is electrically connected with Correlation method for data processing unit, need employing and extension line to bind pad Bonding Pad one to one and realize electrical connection technique, when occurring the situation of a large amount of extension line of above-mentioned generation, just mean and will use a large amount of binding pad Bonding Pad, easily cause the problem that binding pad Bonding Pad yield significantly reduces;
2. from the imagination of situation shown in Fig. 7, when producing a large amount of extension line, extension line will occupy the area of the touch area of significant proportion, and these areas become the blind area of touch area, thus causes the linearity and the precise decreasing of touching testing result;
3. in order to reduce extension line in touch area footprint area, extension line manufactures very thin mostly, and very thin extension line will impact the dependability of touching input media, and the extension line quantity produced is larger, and the probability that extension line affects reliability is higher;
4. described above, produce a large amount of extension lines and will use a large amount of binding pad Bonding Pad, and a large amount of binding pad Bonding Pad can cause flexible PCB Flexible Print Circuit Board area excessive, impact is formed on the vibrational power flow of whole touching input media, also can produce higher manufacturing cost;
5. although prior art can reduce binding pad Bonding Pad quantity by adopting bilateral outlet and silver slurry wire jumper technique, silver slurry via hole technique itself can cause the yield of electrical connection to decline and cost increase, can not effective solving practical problems.
Summary of the invention
The technical problem to be solved in the present invention is to avoid the deficiencies in the prior art part and proposes a kind of individual layer mutual capacitance touching input media that can reduce extension line, and proposes the electrode driving method being suitable for this input media further
The present invention solve the technical problem can by realizing by the following technical solutions:
Design, manufacture a kind of individual layer mutual capacitance touching input media that can reduce extension line, comprise at least one electrode unit covering whole touch area without overlapping.Described electrode unit comprises the first electrode group and the second electrode group.Described first electrode group comprises the M root electrode chains arranged along first direction, M >=2, and the first electrode outlet line.Described second electrode group comprises the N group electrode group arranged along second direction, N >=1, and the second electrode outlet line.Described electrode chains is provided with at least two the first electrodes arranged along second direction, and the first electrode connecting line.Thus the first electrode belonging to same electrode chains has identical centre coordinate in a first direction; Two adjacent first electrode belonging to same electrode chains are electrically connected by the first electrode connecting line.Described electrode group is provided with at least one second electrode arranged along first direction, thus the second electrode belonging to same electrode group has identical centre coordinate in second direction.The first all electrodes, the second electrode, first, second extension line and the first electrode connecting line do not intersect mutually, be not arranged in touch area overlappingly.Described first electrode is arranged alternately along second direction and the second electrode; Arbitrary second electrode covers in coordinate range at first direction and is provided with at least two electrode chains.Arbitrary first electrode in described first electrode outlet line electrode electrically connected chain, for by the electric signal transmission of each first electrode chains to outside touch area.Described second electrode outlet line is electrically connected the second electrode, for by the electric signal transmission of each second electrode group to outside touch area.
A kind of layout scheme of the first electrode connecting line is specifically, for arbitrary electrode chains, be electrically connected the first electrode connecting line of two adjacent first electrode around the second electrode between this two adjacent first electrode, be arranged on the space of two adjacent first electrode separately and between the second electrode, and in space between the second electrode.
Such scheme realizes further by following structure, the second identical electrode of coordinate range is covered for along first direction, this second electrode comprises the both ends along first direction, in coordinate range that this covers along first direction, the same end of each first electrode connecting line between two adjacent first electrode adhering to respective electrode chains separately all around the second electrode along first direction is arranged.
Such scheme also realizes further by following structure, the second identical electrode of coordinate range is covered for along first direction, this second electrode comprises the both ends along first direction, in the described coordinate range covered along first direction, two first electrode connecting lines that the first electrode adhering to respective electrode chains separately is electrically connected separately are walked around two second electrodes adjacent from this first electrode respectively and are arranged along the different ends of first direction.
For the second adjacent electrode, also extension line quantity can be simplified further by electric connection line.Described touching input media also comprises the second electrode connecting line.When existing between at least one pair of adjacent second electrode in same electrode group, the first electrode is not set, and during situation through the first electrode connecting line, the first electrode outlet line and the second electrode outlet line of space between described two adjacent second electrode, described second electrode connecting line is electrically connected each two adjacent second electrode respectively becomes the second electrode array; Described second electrode outlet line is only electrically connected second electrode in the second electrode array.
In addition, described touching input media also comprises data processing unit, and the first electrode outlet line and second electrode outlet line of all electrode units are all electrically connected this data processing unit.
And then described touching input media also comprises the concentrated wiring units of each port of the described data processing unit of electrical connection, and this concentrated wiring units is provided with binds pad Bonding Pad one to one with the first electrode outlet line and the second electrode outlet line; Described first electrode outlet line and the second electrode outlet line are connected electrically on binding pad Bonding Pad separately, thus realize each electrode unit electrical connection data processing unit.
More specifically, described concentrated wiring units is electrically connected to data processing unit by flexible flexible PCB Flexible Print Circuit Board.
The present invention solve the technical problem can also by realizing by the following technical solutions:
Propose a kind of electrode driving method for individual layer mutual capacitance touching input media, based on individual layer mutual capacitance touching input media of the present invention, described method comprises the steps:
A. be each electrode chains configuration scanning mode, this scanning mode comprises state of a control, vacant state and ground state; Described vacant state refers to the high-impedance state close to satisfactory suspension state; Described satisfactory suspension state refers to the state without any electrical connection;
B. the scanning mode of electrode chains is set according to the sequential of setting in running order; While the scanning mode arranging electrode chains is in running order, following setting is performed to other not in running order electrode chains,
The scanning mode of the first electrode connecting line said electrode chain through gap the first in running order electrode and the second electrode is set to vacant state, will be set to ground state through the scanning mode of the first electrode connecting line said electrode chain the first in running order electrode and the second electrode.
Particularly, the sequential set described in step B comprises move in turn sequential and the same sequential of multiple row;
Arrange according to the sequential that moves in turn that the scanning mode of electrode chains is in running order to be referred to, for every root electrode chains shares out the work the period, according to each working hour described in the order zero lap ground continuous arrangement of setting in a scan period, thus electrode chains is made to be set to duty one by one;
With sending out sequential, described multiple row refers to that the scanning mode arranging electrode chains is in running order, electrode chains is divided into groups, share out the work the period for often organizing electrode chains, according to each working hour described in the order zero lap ground continuous arrangement of setting in a scan period, thus electrode chains is made to be set to duty a group by a group.
Compared with the existing technology comparatively, the technique effect that the present invention " can reduce individual layer mutual capacitance touching input media and the driving method thereof of extension line " is:
1. the present invention reduces the quantity of the second electrode simultaneously with the mode of the first electrode coupling adhering to multiple electrode chains separately by the second electrode in electrode group, and then significantly reduction connects separately the quantity of the second electrode outlet line of the second electrode; Electrode chains simultaneously belonging to the first electrode chains is by all or part of connection of the first electrode connecting line, and the quantity of the first electrode outlet line also greatly reduces.Therefore total extension line quantity is significantly reduced, thus improve the linearity and the precision of touching testing result, reduce the area of electrode connecting line and the shared touch area of lead-in wire in unit area, improve the reliability of touching input media, improve manufacture technics yield, reduce production cost;
2. the present invention significantly reduces extension line, and then significantly reduces binding pad Bonding Pad, and improve the fine ratio of product of binding pad Bonding Pad, the structural design of order touching input media is more flexible, reduces production cost;
3. electrode driving method of the present invention not only overcomes the first electrode connecting line between the first electrode and the second electrode to the negative effect touched Scanning Detction and bring, the operation of vacant state is also in by arranging electrode chains, give the function that the first electrode connecting line is new, improve optical property and adjustment node capacitance, improve the linearity and the precision of touching testing result further.
Accompanying drawing explanation
Fig. 1 is the electric schematic block diagram of the present invention's " input media and driving method thereof are touched in the individual layer mutual capacitance that can reduce extension line " the first embodiment;
Fig. 2 is the electrode drive time diagram of described first embodiment;
Fig. 3 is the arrangement of electrodes schematic diagram of second embodiment of the invention;
Fig. 4 is the arrangement of electrodes schematic diagram of third embodiment of the invention;
Fig. 5 is the arrangement of electrodes schematic diagram of fourth embodiment of the invention;
Fig. 6 is the arrangement of electrodes schematic diagram of fifth embodiment of the invention;
Fig. 7 is the arrangement of electrodes schematic diagram of prior art 4 × 4 passage individual layer mutual capacitance touching input media.
Embodiment
Be described in further detail below in conjunction with embodiment each shown in accompanying drawing.
The present invention proposes a kind of individual layer mutual capacitance touching input media that can reduce extension line, comprises at least one electrode unit covering whole touch area without overlapping.As shown in Fig. 1, Fig. 3 to Fig. 5, the present invention first to fourth embodiment is considered from simplification drawing with the angle of clear embodiment technical scheme, all in touch area 101, is provided with an electrode unit 1.As shown in Figure 6, fifth embodiment of the invention is provided with four electrode units 1 in touch area.
As shown in Figure 1, first embodiment of the invention, it is the first electrode group that first electrode 11 of EX is formed that described electrode unit 1 comprises by all numbering beginnings, and has all numbering beginnings to be the second electrode group that second electrode 21 of EY is formed.
Described first electrode group comprises the M root electrode chains arranged along first direction, M >=2, and the first electrode outlet line.Described second electrode group comprises the N group electrode group arranged along second direction, N >=1, and the second electrode outlet line.
The rectangular coordinate that all embodiments of the present invention are all formed with the X-coordinate of level and vertical Y-coordinate is example, and namely X-coordinate direction of principal axis represents first direction, and Y-coordinate direction of principal axis represents second direction.And touching input media scheme of the present invention is applicable to all two-dimensional coordinate systems, except rectangular coordinate system, can also be angle coordinate system, non-orthogonal coordinate system etc.
M=4, N=4 in the first embodiment of the invention, namely first embodiment of the invention is the touching input media for 4 × 4 passages.In first embodiment of the invention, all the first electrodes 11 with EX1 beginning numbering are formed No. 1 first electrode channel, all the first electrodes 11 with EX2 beginning numbering are formed No. 2 first electrode channels, all the first electrodes 11 with EX3 beginning numbering are formed No. 3 first electrode channels, and all the first electrodes 11 with EX4 beginning numbering are formed No. 4 first electrode channels.Each first electrode channel is exactly an electrode chains, and as described in Figure 1, described each electrode chains is all lay along the arrangement of X-coordinate direction of principal axis one one.All the second electrodes 21 with EY1 beginning numbering are formed No. 1 second electrode channel, all the second electrodes 21 with EY2 beginning numbering are formed No. 2 second electrode channels, all the second electrodes 21 with EY3 beginning numbering are formed No. 3 second electrode channels, and all the second electrodes 21 with EY4 beginning numbering are formed No. 4 second electrode channels.Each second electrode channel is exactly one group of electrode group, and as described in Figure 1, described each electrode group is all lay along the arrangement a group by a group of Y-coordinate direction of principal axis.Described electrode chains passes through the first electrode outlet line 12 by outside electric signal transmission to touch area 101.Described electrode group passes through the second electrode outlet line 22 by outside electric signal transmission to touch area 101.
Described electrode chains is provided with at least two the first electrodes arranged along second direction, and the first electrode connecting line.First embodiment of the invention, as shown in Figure 1, every root electrode chains is provided with four the first electrodes 11 arranged along Y-coordinate direction of principal axis separately, and for being electrically connected the first electrode connecting line 13 of adjacent first electrode 11.Thus the first electrode 11 belonging to same electrode chains has identical centre coordinate in a first direction.The centre coordinate of described electrode chains refers to the centre of form connecting line coordinate in a first direction of each first electrode of an electrode chains.Namely the numbering belonging to same electrode chains is that first electrode 11 of EX11, EX12, EX13 and EX14 forms the electrode chains EX1 with identical X1 coordinate; The numbering belonging to same electrode chains is that first electrode 11 of EX21, EX22, EX23 and EX24 forms the electrode chains EX2 with identical X2 coordinate; The numbering belonging to same electrode chains is that first electrode 11 of EX31, EX32, EX33 and EX34 forms the electrode chains EX3 with identical X3 coordinate; The numbering belonging to same electrode chains is that first electrode 11 of EX41, EX42, EX43 and EX44 forms the electrode chains EX4 with identical X4 coordinate.Two adjacent first electrode 11 belonging to same electrode chains are electrically connected by the first electrode connecting line 13.The coordinate of each first electrode is determined by the coordinate of the first electrode centre of form.
Described electrode group is provided with at least one second electrode arranged along first direction, first embodiment of the invention, as shown in Figure 1, often organizes electrode group and is provided with two the second electrodes 21 arranged along X-coordinate direction of principal axis separately.Thus the second electrode 21 belonging to same electrode group has identical centre coordinate in second direction.The centre coordinate of described electrode chains refers to the centre of form connecting line coordinate in a first direction of each first electrode of an electrode chains.Namely the numbering belonging to same electrode group is that second electrode 21 of EY11 and EY12 forms the electrode group EY1 with identical Y1 coordinate; The numbering belonging to same electrode group is that second electrode 21 of EY21 and EY22 forms the electrode group EY2 with identical Y2 coordinate; The numbering belonging to same electrode group is that second electrode 21 of EY31 and EY32 forms the electrode group EY3 with identical Y3 coordinate; The numbering belonging to same electrode group is that second electrode 21 of EY41 and EY42 forms the electrode group EY4 with identical Y4 coordinate.The coordinate of each second electrode is determined by the coordinate of the second electrode centre of form.
The first all electrodes, the second electrode, the first extension line, the second extension line and the first electrode connecting line do not intersect mutually, be not arranged in touch area overlappingly.Described the intersection mutually not only refers to that the electrical nodes of electrical connection mutually intersects, and what also refer to not to be electrically connected mutually is space crossed.This is the feature that various embodiments of the present invention all possess.
First electrode of the present invention is arranged alternately along second direction and the second electrode; Arbitrary second electrode covers in coordinate range at first direction and is provided with at least two electrode chains.First embodiment of the invention, as shown in Figure 1, the first electrode 11 belonging to same electrode chains is arranged alternately along Y-coordinate direction of principal axis and the second electrode 21.To adhere to the second electrode 21 that the numbering of Different electrodes group is EY11, EY21, EY31 and EY41 separately, and electrode chains EX1 and electrode chains EX2 is example, numbering is that second electrode 21 of EY11, EY21, EY31 and EY41 all covers identical coordinate range (XH at X-coordinate direction of principal axis, XE), and in coordinate range (XH, XE), be provided with electrode chains EX1 and electrode chains EX2.This structure makes the second number of electrodes of a composition electrode group relevant to the quantity of electrode chains, in the first embodiment of the invention, there are 4 electrode chains, and 2 electrode chains are set in the coordinate range of the second electrode 21,4/2=2, thus can determine that each electrode group is made up of 2 the second electrodes 21.Arbitrary first electrode 11 in described first electrode outlet line 12 electrode electrically connected chain, for by the electric signal transmission of each first electrode chains to outside touch area 101.Described second electrode outlet line 22 is electrically connected the second electrode 21, for by the electric signal transmission of each electrode group to outside touch area 101.For electrode chains, owing to forming the first electrode 11 of electrode chains all by the first electrode connecting line 13 one-tenth electrode array connected in series, so every root electrode chains just only needs the quantity of configuration first electrode outlet line 12, first electrode outlet line 12 identical with the quantity of electrode chains.For electrode group, because the second electrode 21 forming electrode group is electrically connected the second electrode outlet line 22 independently of one another, so often organize the second electrode outlet line 22 that electrode group needs configuration identical with the second electrode 21 quantity in this group; The quantity of the second electrode outlet line 22 is exactly the product of the second number of electrodes and electrode group quantity in each electrode group.As shown in Figure 1, first embodiment of the invention arranges 4 electrode chains and 4 groups of electrode groups, and the quantity of obvious first electrode outlet line 12 is 4.As mentioned above, 2 electrode chains are set in the coordinate range (XH, XE) of the second electrode 21, just determine in each electrode group and have 2 the second electrodes 21, often organize electrode group and need configuration 2 the second electrode outlet lines 22, need configuration 2 × 4=8 root second electrode outlet line 22 altogether.Thus the extension line quantity of first embodiment of the invention is 4+8=12 root.Be the prior art touching input media of 4 × 4 passages equally shown in Fig. 7, need configuration 20 extension lines.Thus the structure of individual layer mutual capacitance touching input media of the present invention can make extension line quantity hinge structure reduce.
Extended to wider by first embodiment of the invention, for the individual layer mutual capacitance touching input media of the present invention of M × N channel, M is the quantity of electrode chains, and N is the quantity of electrode group.Suppose that the second electrode covers in coordinate range at first direction and be provided with D root electrode chains, D >=2.So need M root first electrode outlet line, often organize electrode group and be made up of M/D the second electrode, namely often organizing electrode group needs configuration M/D root second electrode outlet line, and the sum of the second electrode outlet line is MN/D.Thus the extension line of touching individual layer mutual capacitance touching of the present invention input media should be M+MN/D.
First embodiment of the invention, as shown in Figure 1, described touching input media also comprises data processing unit 2, and the first electrode outlet line 12 of electrode unit 1 and the second electrode outlet line 22 are all electrically connected this data processing unit 2.
First embodiment of the invention, as shown in Figure 1, described data processing unit 2 is indirect electrical connection first electrode outlet line 12 and the second electrode outlet line 22 also.Described touching input media also comprises the concentrated wiring units 3 of each port of the described data processing unit 2 of electrical connection, this concentrated wiring units 3 is provided with binds pad Bonding Pad 31, i.e. P1 to P12 one to one with the first electrode outlet line 12 and the second electrode outlet line 22; Described first electrode outlet line 12 and the second electrode outlet line 22 are connected electrically on binding pad Bonding Pad 31 separately, thus realize electrode unit 1 and be electrically connected data processing unit 2.
First embodiment of the invention, described concentrated wiring units 3 is electrically connected data processing unit 2 by flexible flexible PCB Flexible Print Circuit Board.
All the first electrode, the second electrode, the first extension line, the second extension line and the first electrode connecting line of the present invention does not intersect mutually, is not arranged in touch area overlappingly, can have numerous embodiments.Various embodiments of the present invention, as shown in Fig. 1, Fig. 3 to Fig. 5, for arbitrary electrode chains, be electrically connected the first electrode connecting line 13 of two adjacent first electrode 11 around the second electrode 21 between this two adjacent first electrode 11, be arranged on the space of two adjacent first electrode 11 separately and between the second electrode 21, and in space between the second electrode 21.
First embodiment of the invention, as shown in Figure 1, for along first direction, namely X-coordinate direction of principal axis covers the second identical electrode 21 of coordinate range, this second electrode 21 comprises along first direction, i.e. both ends, X-coordinate axial left and right, described along first direction, namely, in the coordinate range that X-coordinate direction of principal axis covers, the same end of each first electrode connecting line 13 between two adjacent first electrode 11 adhering to respective electrode chains separately all around the second electrode 21 along first direction is arranged.To belong to the adjacent first electrode 11 that the numbering of electrode chains EX1 is EX12 and EX13, the numbering belonging to electrode chains EX2 is the adjacent first electrode 11 of EX22 and EX23, and numbering be second electrode 21 of EY21 is example, the first electrode connecting line 13 belonging to electrode chains EX1 and the first electrode connecting line 13 belonging to electrode chains EX2 all around numbering be arranging along the axial right part of X-coordinate of second electrode 21 of EY21.
The difference of third embodiment of the invention and the first embodiment is, as shown in Figure 4, for along first direction, namely X-coordinate direction of principal axis covers the second identical electrode 21 of coordinate range, this second electrode 21 comprises along first direction, the i.e. axial both ends of X-coordinate, described along first direction, namely, in the coordinate range that X-coordinate direction of principal axis covers, two first electrode connecting lines 13 of the respective electrical connection of the first electrode 11 adhering to respective electrode chains separately are walked around two second electrodes 21 adjacent from this first electrode 11 respectively and are arranged along the different ends of first direction.To belong to the first electrode 11 that the numbering of electrode chains EX1 is EX13, the numbering belonging to electrode chains EX2 is first electrode 11 of EX23, and numbering be second electrode 21 of EY31 and EY21 is example, numbering is two first electrode connecting lines 13 that first electrode 11 of EX13 is electrically connected, electrical connection numbering is that to walk around numbering be that second electrode 21 of EY31 is along the axial left part of X-coordinate for first electrode connecting line 13 in first electrode 11 upper left corner of EX13, electrical connection numbering is that to walk around numbering be that second electrode 21 of EY21 is along the axial right part of X-coordinate for the first electrode connecting line 13 of first electrode 11 lower boundary of EX13, equally, numbering is two first electrode connecting lines 13 that first electrode 11 of EX23 is electrically connected, electrical connection numbering be the first electrode connecting line 13 of first electrode 11 coboundary of EX23 walk around numbering be second electrode 21 of EY31 along the axial left part of X-coordinate, electrical connection numbering is that to walk around numbering be that second electrode 21 of EY21 is along the axial right part of X-coordinate to first electrode connecting line 13 in first electrode 11 lower right corner of EX13.
For the second adjacent electrode, also can simplify extension line quantity further by electric connection line, second embodiment of the invention and the 3rd embodiment, as shown in Figure 3 and Figure 4, described touching input media also comprises the second electrode connecting line 23.When existing in same electrode group between at least one pair of adjacent second electrode 21, the first electrode 11 is not set, and during situation through the first electrode connecting line 13, first electrode outlet line 12 and the second electrode outlet line 22 of space between described two adjacent second electrode, described second electrode connecting line 23 is electrically connected each two adjacent second electrode 21 respectively becomes the second electrode array; Described second electrode outlet line 22 is only electrically connected second electrode 21 in the second electrode array.The numbering of second embodiment of the invention is that second electrode 21 of EY11 and EY12 just belongs to above-mentioned situation, thus numbering is that second electrode 21 of EY11 and EY12 is electrically connected by the second electrode connecting line 23, now electrode group EY1 only by second electrode outlet line 22 just by the electric signal transmission of electrode group that is made up of two second electrodes 21 to touch area 101, compare each second electrode in the first embodiment to configure the second electrode outlet line 22, second embodiment respectively and simplified second electrode outlet line 22.Equally, the numbering of third embodiment of the invention is that second electrode 21 of EY11 and EY12 also makes the second electrode outlet line 22 simplify.
Fourth embodiment of the invention, as shown in Figure 5, electrode unit based on electrode part shown in scheming, can extend along X-coordinate direction of principal axis and Y-coordinate direction of principal axis and be covered with whole touch area respectively.In the fourth embodiment, second electrode is along the axial coordinate range (XH of X-coordinate, 4 electrode chains are set XE), according to the total formula M+MN/D of above-mentioned extension line, in the coordinate range of 4th embodiment by increase by second electrode first direction, more multi-electrode chain is set, the amplitude of simplifying of extension line will be made compared with first to expand further to the 3rd embodiment.
Fifth embodiment of the invention specifically illustrates the example of the electrode unit 1 adopting multiple non-overlapping copies in touch area 101 by the touching input media with 4 electrode units.As shown in Figure 6, the 5th embodiment label 4 indicates the first electrode outlet line and second electrode outlet line of an electrode unit 1, thus the first electrode outlet line of all electrode units 1 and the second electrode outlet line are all electrically connected data processing unit 2.Fifth embodiment of the invention also can use binding pad Bonding Pad to realize the electrical connection of touching input media and flexible PCB Flexible Print Circuit Board.Adhere to the first electrode outlet line of each electrode unit separately and the second electrode outlet line is connected electrically on binding pad Bonding Pad separately, thus realize each electrode unit 1 and be electrically connected data processing unit 2.5th embodiment can shorten the length of the first electrode connecting line, and the risk of connecting line break decreases, and improves the reliability of technique.In Fig. 6, space between touch area 101 and each electrode unit 1, and the space between each electrode unit 1 is the schematic space for distinguishing touch area 101 and electrode unit 1 reserved in order to drawing display is clear, this schematic space can reduce because of application demand in actual applications, until this schematic space does not exist, or this schematic space can expand because of application demand.
In prior art, duty and ground state are only had to the scanning mode of passage.As shown in Figure 1, with the second electrode 21 that numbering is EY11, numbering is first electrode 11 of EX11, and numbering be first electrode 11 of EX21 is example, if adopt prior art to the setting of Channel scan state, when electrode chains EX2 is in running order, the no matter in running order or ground state of electrode chains EX1, coupling capacitance between second electrode 21 of numbering to be the first electrode 11 and the numbering of EX21 be EY11 will be subject to being electrically connected the impact of first electrode connecting line 13 of numbering the first electrode 11 being EX11, this impact be because of the first electrode connecting line 13 through numbering be EX21 the first electrode 11 and numbering be EY11 the second electrode 21 space and produce.In order to avoid this impact, based on individual layer mutual capacitance touching input media of the present invention, the present invention proposes a kind of electrode driving method for individual layer mutual capacitance touching input media, comprises the steps:
A. be each electrode chains configuration scanning mode, this scanning mode comprises state of a control, vacant state and ground state; Described vacant state refers to the high-impedance state close to satisfactory suspension state; Described satisfactory suspension state refers to the state without any electrical connection;
B. the scanning mode of electrode chains is set according to the sequential of setting in running order; While the scanning mode arranging electrode chains is in running order, following setting is performed to other not in running order electrode chains,
The scanning mode of the first electrode connecting line said electrode chain through gap the first in running order electrode and the second electrode is set to vacant state, will be set to ground state through the scanning mode of the first electrode connecting line said electrode chain the first in running order electrode and the second electrode.
As shown in Figure 1, with the second electrode 21 that numbering is EY11, numbering is first electrode 11 of EX11, and numbering be first electrode 11 of EX21 is example, when electrode chains EX2 is in running order, suspended state is in by arranging electrode chains EX1, make numbering be EX21 the first electrode 11 and numbering be EY11 the second electrode 21 between space, electrical connection numbering is that the first electrode connecting line 13 of first electrode 11 of EX11 becomes mute electrode Dummy Electrod, make the first electrode connecting line 13 not only do not affect numbering be EX21 the first electrode 11 and numbering be EY11 the second electrode 21 between coupling capacitance, also optimize the first electrode 11 that numbering is EX21 and the electric field of numbering between the second electrode 21 being EY11, improve the linearity and the precision of touching testing result, improve the optical effect in this region simultaneously.
Particularly, the sequential set described in step B comprises move in turn sequential and the same sequential of multiple row;
Arrange according to the sequential that moves in turn that the scanning mode of electrode chains is in running order to be referred to, for every root electrode chains shares out the work the period, according to each working hour described in the order zero lap ground continuous arrangement of setting in a scan period, thus electrode chains is made to be set to duty one by one.First embodiment of the invention, as depicted in figs. 1 and 2, D1 to D4 port electrode electrically connected chain EX1, EX2, EX3 and EX4 respectively of data processing unit 2, data processing unit 2 arranges the scanning mode of an electrode chains by port D1 to D4.Sequential shown in Fig. 2 to move in turn sequential described in being exactly, and in one-period 0 to T4, every root electrode chains distributes a working hour, namely distributes to 0 to the T1 period of the electrode chains EX1 of the port D1 being electrically connected to data processing unit 2; Distribute to T1 to the T2 period of the electrode chains EX2 of the port D2 being electrically connected to data processing unit 2; Distribute to T2 to the T3 period of the electrode chains EX3 of the port D3 being electrically connected to data processing unit 2; And distribute to T3 to T4 period of electrode chains EX4 of the port D4 being electrically connected to data processing unit 2, each working hour zero lap.Pulse signal shown in figure be electrode chains in running order drawing signal, do not represent electrode chains in running order time actual electrical signal waveform.
With sending out sequential, described multiple row refers to that the scanning mode arranging electrode chains is in running order, electrode chains is divided into groups, share out the work the period for often organizing electrode chains, according to each working hour described in the order zero lap ground continuous arrangement of setting in a scan period, thus electrode chains is made to be set to duty a group by a group.
Claims (10)
1. can reduce an individual layer mutual capacitance touching input media for extension line, it is characterized in that:
Comprise at least one electrode unit covering whole touch area without overlapping; Described electrode unit comprises the first electrode group and the second electrode group;
Described first electrode group comprises the M root electrode chains arranged along first direction, M >=2, and the first electrode outlet line; Described second electrode group comprises the N group electrode group arranged along second direction, N >=1, and the second electrode outlet line;
Described electrode chains is provided with at least two the first electrodes arranged along second direction, and the first electrode connecting line; Thus the first electrode belonging to same electrode chains has identical centre coordinate in a first direction; Two adjacent first electrode belonging to same electrode chains are electrically connected by the first electrode connecting line;
Described electrode group is provided with at least one second electrode arranged along first direction, thus the second electrode belonging to same electrode group has identical centre coordinate in second direction;
The first all electrodes, the second electrode, first, second extension line and the first electrode connecting line do not intersect mutually, be not arranged in touch area overlappingly;
Described first electrode is arranged alternately along second direction and the second electrode; Arbitrary second electrode covers in coordinate range at first direction and is provided with at least two electrode chains;
Arbitrary first electrode in described first electrode outlet line electrode electrically connected chain, for by the electric signal transmission of each first electrode chains to outside touch area;
Described second electrode outlet line is electrically connected the second electrode, for by the electric signal transmission of each electrode group to outside touch area.
2. the individual layer mutual capacitance touching input media that can reduce extension line according to claim 1, is characterized in that:
For arbitrary electrode chains, the first electrode connecting line being electrically connected two adjacent first electrode, around the second electrode between this two adjacent first electrode, is arranged on the space of two adjacent first electrode separately and between the second electrode, and in space between the second electrode.
3. the individual layer mutual capacitance touching input media that can reduce extension line according to claim 2, is characterized in that:
The second identical electrode of coordinate range is covered for along first direction, this second electrode comprises the both ends along first direction, in coordinate range that this covers along first direction, the same end of each first electrode connecting line between two adjacent first electrode adhering to respective electrode chains separately all around the second electrode along first direction is arranged.
4. the individual layer mutual capacitance touching input media that can reduce extension line according to claim 2, is characterized in that:
The second identical electrode of coordinate range is covered for along first direction, this second electrode comprises the both ends along first direction, in the described coordinate range covered along first direction, two first electrode connecting lines that the first electrode adhering to respective electrode chains separately is electrically connected separately are walked around two second electrodes adjacent from this first electrode respectively and are arranged along the different ends of first direction.
5. the individual layer mutual capacitance touching input media that can reduce extension line according to claim 1, is characterized in that:
Also comprise the second electrode connecting line; When existing between at least one pair of adjacent second electrode in same electrode group, the first electrode is not set, and during situation through the first electrode connecting line, the first electrode outlet line and the second electrode outlet line of space between described two adjacent second electrode, described second electrode connecting line is electrically connected each two adjacent second electrode respectively becomes the second electrode array;
Described second electrode outlet line is only electrically connected second electrode in the second electrode array.
6. the individual layer mutual capacitance touching input media that can reduce extension line according to claim 1, is characterized in that:
Also comprise data processing unit, the first electrode outlet line and second electrode outlet line of all electrode units are all electrically connected this data processing unit.
7. the individual layer mutual capacitance touching input media that can reduce extension line according to claim 6, is characterized in that:
Also comprise the concentrated wiring units of each port of the described data processing unit of electrical connection, this concentrated wiring units is provided with binds pad Bonding Pad one to one with the first electrode outlet line and the second electrode outlet line;
Described first electrode outlet line and the second electrode outlet line are connected electrically on binding pad Bonding Pad separately, thus realize each electrode unit electrical connection data processing unit.
8. the individual layer mutual capacitance touching input media that can reduce extension line according to claim 7, is characterized in that:
Described concentrated wiring units is electrically connected to data processing unit by flexible flexible PCB Flexible Print Circuit Board.
9. for an electrode driving method for individual layer mutual capacitance touching input media, based on the individual layer mutual capacitance touching input media that can reduce extension line according to claim 1; It is characterized in that described method comprises the steps:
A. be each electrode chains configuration scanning mode, this scanning mode comprises state of a control, vacant state and ground state; Described vacant state refers to the high-impedance state close to satisfactory suspension state; Described satisfactory suspension state refers to the state without any electrical connection;
B. the scanning mode of electrode chains is set according to the sequential of setting in running order; While the scanning mode arranging electrode chains is in running order, following setting is performed to other not in running order electrode chains,
The scanning mode of the first electrode connecting line said electrode chain through gap the first in running order electrode and the second electrode is set to vacant state, will be set to ground state through the scanning mode of the first electrode connecting line said electrode chain the first in running order electrode and the second electrode.
10. the electrode driving method for individual layer mutual capacitance touching input media according to claim 9, is characterized in that:
The sequential set described in step B comprises move in turn sequential and the same sequential of multiple row;
Arrange according to the sequential that moves in turn that the scanning mode of electrode chains is in running order to be referred to, for every root electrode chains shares out the work the period, according to each working hour described in the order zero lap ground continuous arrangement of setting in a scan period, thus electrode chains is made to be set to duty one by one;
With sending out sequential, described multiple row refers to that the scanning mode arranging electrode chains is in running order, electrode chains is divided into groups, share out the work the period for often organizing electrode chains, according to each working hour described in the order zero lap ground continuous arrangement of setting in a scan period, thus electrode chains is made to be set to duty a group by a group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590278.4A CN104657007A (en) | 2013-11-22 | 2013-11-22 | Single-layer capacitor touch input device capable of reducing outgoing lines and drive method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590278.4A CN104657007A (en) | 2013-11-22 | 2013-11-22 | Single-layer capacitor touch input device capable of reducing outgoing lines and drive method thereof |
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| CN104657007A true CN104657007A (en) | 2015-05-27 |
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| CN201310590278.4A Pending CN104657007A (en) | 2013-11-22 | 2013-11-22 | Single-layer capacitor touch input device capable of reducing outgoing lines and drive method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094487A (en) * | 2015-08-13 | 2015-11-25 | 京东方科技集团股份有限公司 | Touch screen and control method and control device thereof and touch display device |
| CN108717340A (en) * | 2018-05-21 | 2018-10-30 | 合肥松豪电子科技有限公司 | Single-layer multipoint capacitive screen system, control method and electronic equipment |
| CN111857433A (en) * | 2020-07-24 | 2020-10-30 | 武汉天马微电子有限公司 | Touch control panel and touch control display panel |
-
2013
- 2013-11-22 CN CN201310590278.4A patent/CN104657007A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094487A (en) * | 2015-08-13 | 2015-11-25 | 京东方科技集团股份有限公司 | Touch screen and control method and control device thereof and touch display device |
| CN105094487B (en) * | 2015-08-13 | 2018-10-30 | 京东方科技集团股份有限公司 | Touch screen and its control method, control device, touch display unit |
| CN108717340A (en) * | 2018-05-21 | 2018-10-30 | 合肥松豪电子科技有限公司 | Single-layer multipoint capacitive screen system, control method and electronic equipment |
| CN111857433A (en) * | 2020-07-24 | 2020-10-30 | 武汉天马微电子有限公司 | Touch control panel and touch control display panel |
| CN111857433B (en) * | 2020-07-24 | 2022-07-15 | 武汉天马微电子有限公司 | Touch control panel and touch control display panel |
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Application publication date: 20150527 |