CN101847071A - Capacitive touch screen of electrodes in staggered arrangement - Google Patents
Capacitive touch screen of electrodes in staggered arrangement Download PDFInfo
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- CN101847071A CN101847071A CN 201010143262 CN201010143262A CN101847071A CN 101847071 A CN101847071 A CN 101847071A CN 201010143262 CN201010143262 CN 201010143262 CN 201010143262 A CN201010143262 A CN 201010143262A CN 101847071 A CN101847071 A CN 101847071A
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Abstract
The invention provides a capacitive touch screen of electrodes in staggered arrangement, which comprises X first electrode groups, each comprising at least two first electrode chains connected in parallel; and which further comprises Y second electrode groups, each comprising at least two second electrode chains connected in parallel. Between at least a pair of adjacent first electrode chains of any first electrode group, at least one first electrode chain of at least one first electrode group adjacent to the first electrode group is inserted, and between at least a pair of adjacent second electrode chains of each second electrode group, at least one second electrode chain of at least one second electrode group adjacent to the second electrode group is inserted, so that all the first electrode groups and all the second electrode groups are respectively arranged in a staggered manner. According to the invention, under the situation of ensuring accuracy, the design cost and the data computation amount of the touch screen are lowered, and the contradiction which exists between electrode spacing and electrode amount in the prior art is solved.
Description
Technical field
The present invention relates to the touch sensible input equipment, particularly relate to and use the touch input device of electric capacity as sensing device.
Background technology
The prior art capacitive touch screen comprises self-capacitance touch-screen and mutual capacitance touchscreens.Described self-capacitance touch-screen comprises the battery lead plate that is electrically connected with the pumping signal module of touch-screen peripheral hardware, and over against the equipotential electrode of battery lead plate.The DC source of direct ground connection of described equipotential electrode or electrical connection touch-screen peripheral hardware.Described self-capacitance touch-screen is to utilize self-capacitance between battery lead plate and the equipotential battery lead plate as the electric capacity of induction to the touch action of touch-screen.Described mutual capacitance touchscreens, as shown in Figure 7, comprise directly with the drive electrode 110 of the pumping signal module 800 of being located at touch-screen outward ' be electrically connected ', direct in outside be located at the sensing electrode 210 of the sensing control module 900 ' electrical connection of touch-screen '.Described drive electrode 110 ' and sensing electrode 210 ' all orthogonal thereto usually arranged in arrays, it is described drive electrode 110 ' and sensing electrode 210 ' all rectangular strip, all drive electrodes 110 ' parallel to each other, all sensing electrodes 210 ' also all parallel to each other, simultaneously, arbitrary drive electrode 110 ' all and sensing electrode 210 ' orthogonal.Described pumping signal module 800 ' be used for is to each drive electrode 110 ' provide signal excitation, thus drive electrode 110 ' and sensing electrode 210 ' between form mutual capacitance.As finger or writing pencil when touching described touch-screen, drive electrode 110 ' and sensing electrode 210 ' between electric capacity will change, the center touched takes place in described sensing control module 900 ' be exactly situation about changing by sensing electrode 210 ' detections mutual capacitance and calculating, thereby finishes function corresponding according to touch position.
With above-mentioned mutual capacitance touchscreens is example, prior art is in order to ensure the accurate position that reliably detects the touch-screen touching, generalized case all expect touch points cover at least 3 drive electrodes 110 ' and 3 sensing electrodes 210 ', therefore, need dwindle as much as possible adjacent driven electrode 110 ' between and/or sensing electrode 210 ' between spacing d, to guarantee to touch precision.But, in the touch-screen of same dimensions, dwindle adjacent driven electrode 110 ' between and/or sensing electrode 210 ' between spacing d certainly will cause increase drive electrode 110 ' and/or sensing electrode 210 ' quantity.And increase drive electrode 110 ' and/or sensing electrode 210 ' quantity will increase circuitry consumes and the operand of sensing control module is increased, influence the reaction velocity of touch-screen.Therefore, in order to save design cost, reduce circuitry consumes, to accelerate the reaction velocity of touch-screen, need reduce as far as possible drive electrode 110 ' and/or sensing electrode 210 ' quantity.As seen, prior art to drive electrode 110 ' and/or the demand of sensing electrode 210 ' spacing and their quantity demand between have contradiction, restricted further developing of mutual capacitance touchscreens.For the self-capacitance touch-screen, there is the contradiction between above-mentioned electrode separation and the number of electrodes demand equally.
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 the capacitive touch screen that proposes a kind of electrodes in staggered arrangement, to have contradiction between the demand that solves spacing between electrodes and their the quantity demand.
The present invention solve the technical problem can be by realizing by the following technical solutions:
The capacitive touch screen of design, a kind of electrodes in staggered arrangement of manufacturing comprises being positioned at same plane or adhering to first electrode layer and the second electrode lay on plane separately separately, and described first electrode layer comprises X the first electrode group; Described the second electrode lay comprises Y the second electrode group; X and Y are not less than 1 natural number; Especially, the described first electrode group comprises first electrode chains of at least two parallel connections, and every first electrode chains comprises first electrode that is cascaded; The center line of all first electrode chains is all parallel to each other; The described second electrode group comprises second electrode chains of at least two parallel connections, and every second electrode chains comprises second electrode that is cascaded; The center line of all second electrode chains is all parallel to each other; The center line of the center line of arbitrary described first electrode chains and arbitrary described second electrode chains is orthogonal; Inserted at least one first electrode chains of at least one the first electrode group adjacent between adjacent first electrode chains of at least one pair of of arbitrary first electrode group, thereby made all first electrode group alternative arrangement with this first electrode group; Each second electrode group has at least one second electrode chains that has inserted at least one the second electrode group adjacent with this second electrode group between a pair of adjacent second electrode chains at least, thereby makes all second electrode group alternative arrangement.
Be to save design cost, the described first electrode group quantity of first electrode chains separately is identical usually; The second electrode group quantity of second electrode chains separately is also identical.At this moment, each described first electrode group comprises M root first electrode chains; Each described second electrode group comprises N root second electrode chains; M and N are not less than 1 natural number.
Described M is the even number greater than 2, so for x the first electrode group, x is arbitrary value in 1 to X, from the 1st first electrode chains to the [M/2] root first electrode chains, inserts first electrode chains of [x-1] first an electrode group between every pair first electrode chains successively; Insert first electrode chains of [x+1] the individual first electrode group between first electrode chains to the M root, first electrode chains from [M/2]+1, every pair first electrode chains successively; Described M is the odd number greater than 2, so for x the first electrode group, from the 1st first electrode chains to the INT[M/2]+1 first electrode chains, insert first electrode chains of [x-1] first an electrode group between every pair first electrode chains successively; From INT[M/2]+1 first electrode chains to the M root, first electrode chains, insert first electrode chains of [x+1] the individual first electrode group between every pair first electrode chains successively; Described INT[M/2] be meant function to the operation result round numbers of M/2 part.Preferred described M=3, perhaps M=4.
In like manner, described N is the even number greater than 2, and for y the second electrode group, y is arbitrary value in 1 to Y so, from the 1st second electrode chains to the [N/2] root second electrode chains, insert second electrode chains of [y-1] second an electrode group between every pair second electrode chains successively; Insert second electrode chains of [y+1] the individual second electrode group between second electrode chains to the N root, second electrode chains from [N/2]+1, every pair second electrode chains successively; Described N is the odd number greater than 2, so for y the second electrode group, from the 1st second electrode chains to the INT[N/2]+1 second electrode chains, insert second electrode chains of [y-1] individual second an electrode group between every pair second electrode chains successively; From INT[N/2]+1 second electrode chains to the N root, second electrode chains, insert second electrode chains of [y+1] the individual second electrode group between every pair second electrode chains successively; Described INT[N/2] be meant function to the operation result round numbers of N/2 part.Preferred described N=3, perhaps N=4.
Described capacitive touch screen is the self-capacitance touch-screen, also comprise with all first electrodes and second electrode over against the equipotential electrode; Described first electrode chains and second electrode chains all are electrically connected with the pumping signal module of touch-screen peripheral hardware; The direct ground connection of described equipotential electrode, perhaps the DC source with the touch-screen peripheral hardware is electrically connected.
Described capacitive touch screen is a mutual capacitance touchscreens, a kind of electrode chains in all first electrode chains and all second electrode chains is electrically connected with the pumping signal module of described touch-screen peripheral hardware, and another kind of electrode chains just is electrically connected with the sensing control module of described touch-screen peripheral hardware.
Compare with prior art, the present invention's's " capacitive touch screen of electrodes in staggered arrangement " technique effect is:
The present invention inserts the electrode chains of parallel connection the electrode group of pumping signal module or sensing control module one port as one group of reality, the electrode group quantity of the described pumping signal module of actual access and the electrode group quantity of sensing control module are significantly reduced, design of touch panel cost and data computation amount have been reduced, and the structure with electrodes in staggered arrangement makes the touch nidus can influence the electrode chains that adheres to different electrode groups separately, guarantee to touch degree of accuracy, thereby guaranteeing under the situation of precision, reduce the quantity of electrode group, overcome the contradiction that exists between the spacing demand of prior art electrode chains and their the quantity demand.
Description of drawings
Fig. 1 is several suitable electrode group synoptic diagram of the present invention's " capacitive touch screen of electrodes in staggered arrangement ";
Fig. 2 is a first embodiment of the invention, and promptly M or N are 3 o'clock arrangement of electrodes synoptic diagram;
Fig. 3 is a second embodiment of the invention, and promptly M or N are 4 o'clock arrangement of electrodes synoptic diagram;
Fig. 4 is a third embodiment of the invention, and promptly the touch screen electrode during M=N=4 is arranged synoptic diagram;
Fig. 5 is a fourth embodiment of the invention, and promptly M or N are 5 o'clock arrangement of electrodes synoptic diagram;
Fig. 6 is a fifth embodiment of the invention, and promptly M or N are 5 o'clock another kind of arrangement of electrodes synoptic diagram;
Fig. 7 is the arrangement of electrodes synoptic diagram of prior art mutual capacitance touchscreens.
Embodiment
Be described in further detail below in conjunction with each embodiment shown in the accompanying drawing.
The present invention proposes a kind of capacitive touch screen of electrodes in staggered arrangement, comprises being positioned at same plane or adhering to first electrode layer and the second electrode lay on plane separately separately.Usually, when described first electrode layer and the second electrode lay adhere to separately separately in the plane, one deck insulating medium is arranged between first electrode layer and the second electrode lay, be called as double-layer capacitance formula touch-screen; And described first electrode layer and the second electrode lay be in same plane the time, first electrode of described first electrode layer and second electrode of the second electrode lay locations complementary is set, and insulation processing is implemented in the point of crossing, be called as the individual layer capacitive touch screen.
Can correspondingly exchange between described first electrode layer, the first electrode group, first electrode chains and first electrode and the second electrode lay, the second electrode group, second electrode chains and second electrode, just in order to be distinguished, Cai distinguished titled with the title of " first " and " second ".Therefore, hereinafter when not needing to be distinguished, above-mentioned title is referred to as electrode layer, electrode group, electrode chains and electrode.
Technical scheme of the present invention is applicable to the self-capacitance touch-screen, is applicable to mutual capacitance touchscreens too.For mutual capacitance touchscreens, as Fig. 1-1 to shown in Fig. 1-3, a kind of electrode chains in all first electrode chains 110 and all second electrode chains 210 is electrically connected with the pumping signal module 800 of described touch-screen peripheral hardware, and another kind of electrode chains just is electrically connected with the sensing control module 900 of described touch-screen peripheral hardware.In this area, electrode layer, electrode group, electrode chains and the electrode that will be electrically connected pumping signal module 800 usually are called Drive Layer, drive electrode group, drive electrode chain and drive electrode; The electrode layer, electrode group, electrode chains and the electrode that are electrically connected sensing control module 900 are called sensing layer, sensing electrode group, sensing electrode chain and sensing electrode.For the self-capacitance touch-screen, shown in Fig. 1-4, described touch-screen also comprise with all first electrodes 111 and second electrode 211 over against equipotential electrode 311; Described first electrode chains 110 and second electrode chains 210 all are electrically connected with the pumping signal module 800 of touch-screen peripheral hardware; Described equipotential electrode 311 direct ground connection perhaps are electrically connected with the DC source 700 of touch-screen peripheral hardware.
To shown in Figure 6, described first electrode layer comprises X the first electrode group 100 as Fig. 2; Described the second electrode lay comprises Y the second electrode group 200; X and Y are not less than 1 natural number.As mentioned above, first electrode and second electrode that relate in the various embodiments of the present invention can exchange application fully.
As Figure 1-1, described touch-screen is a mutual capacitance touchscreens, and the first electrode group 100 is electrically connected to pumping signal module 800, and therefore, this first electrode group 100 is used as the drive electrode group in this example.The described first electrode group comprises first electrode chains 110 of at least two parallel connections, i.e. drive electrode chain, and every first electrode chains 110 comprises first electrode 111 that is cascaded, i.e. drive electrode, this first electrode is rectangular.Shown in Fig. 1-2, described touch-screen is a mutual capacitance touchscreens, and the described second electrode group 200 is electrically connected to sensing control module 900, and therefore, this second electrode group 200 is used as the sensing electrode group in this example.The described second electrode group 200 comprises second electrode chains 210 of at least two parallel connections, i.e. sensing electrode chain, and every second electrode chains comprises second electrode 211 that is cascaded, i.e. sensing electrode, this second electrode is square.As Figure 1-3, because the not concrete outer module of being located at touch-screen that limits the electrode electrical connection, therefore, this example is suitable for the self-capacitance touch-screen and also is applicable to mutual capacitance touchscreens; For mutual capacitance touchscreens, this example is suitable for makes drive electrode, also is suitable for and makes sensing electrode.Below, relate to above-mentioned can blanket scheme, will adopt the statement of " electrode group 100/200, electrode chains 110/210, electrode 111/211 " among Fig. 1-3.Electrode described in this example 111/211 assumes diamond in shape.Shown in Fig. 1-4, described touch-screen is the self-capacitance touch-screen, comprises the equipotential electrode 311 over against electrode 111/211, and these potential electrode 311 are electrically connected the outer DC source 700 of being located at touch-screen in this example, and described electrode 111/211 is hexagon.Above-mentioned four examples all are schematically to introduce several inner cases of electrode group 100/200 with the single electrode group, and in specific embodiment, electrode group 100/200 is at least more than two groups.Can also know from above-mentioned four examples and to know that described electrode chains 110/210 is equivalent to the rectangular strip electrode of prior art in fact, just the whole piece electrode chains is designed to a plurality of single electrodes 111/211 and connect.As shown in Figure 1, the concrete shape of described first electrode 111 and second electrode 211 can be varied, uses according to reality fully and determine.No matter which kind of design is the concrete shape of described electrode chains 110/210 adopt, on abstract or data sense, it all is suitable with traditional rectangular strip electrode, therefore, the electrode chains 110/210 of following each embodiment of the present invention all schematically shows with thick straight line, and the concrete shape of electrode chains is to not obviously influence of technical solution of the present invention.As prior art, the center line of all first electrode chains 110 is all parallel to each other; The center line of all second electrode chains 210 is all parallel to each other; The center line of the center line of arbitrary described first electrode chains 110 and arbitrary described second electrode chains 210 is orthogonal.
Technical characterstic of the present invention is to have inserted between at least one pair of adjacent first electrode chains 110 of arbitrary first electrode group 100 at least one first electrode chains 110 of at least one the first electrode group 100 adjacent with this first electrode group 100, thereby makes all the first electrode group, 100 alternative arrangement; Each second electrode group 200 has at least one second electrode chains 210 that has inserted at least one the second electrode group 200 adjacent with this second electrode group 200 between a pair of adjacent second electrode chains 210 at least, thereby makes all the second electrode group, 200 alternative arrangement.
The present invention specifies some instantiations that above-mentioned technical characterstic relates to by following examples, and following examples all are to be that example specifies with the mutual capacitance touchscreens, and these embodiment are suitable for the self-capacitance touch-screen equally.
In order to reduce design cost, the reduced data disposal route, the quantity of described first electrode group 100 and/or the second electrode group 200 electrode chains 110/210 separately all is identical usually.Be that each described first electrode group 100 comprises M root first electrode chains 110; Each described second electrode group 200 comprises N root second electrode chains 210; M and N are not less than 1 natural number.
As previously mentioned, the arrangement of electrodes situation of the first electrode group can be exchanged with the deployment scenarios of the second electrode group fully.Therefore, the electrode arrangement mode of quantity M that is applicable to first electrode chains 110 of the first electrode group 100 is applicable to the electrode arrangement mode of quantity N of second electrode chains 210 of the second electrode group 200 too.Equally, the arrangement of electrodes scheme of various embodiments of the present invention can be connected to pumping signal module 800, also can be connected to sensing control module 900, for simplifying drawing, use port numbers P1 in the arrangement of electrodes scheme of each embodiment, P2 ..., represent the port of pumping signal module 800 or sensing control module 900.
Can be divided into M greater than 2 situation or N is the situation of odd number or even number for the quantity of the electrode chains 110/210 of electrode group 100/200.
As shown in Figure 2, comprise seven groups of electrode groups 100/200, i.e. X=7 or Y=7 in the arrangement of electrodes scheme of first embodiment of the invention; Each electrode group 100/200 is connected to pumping signal module 800 or sensing control module 900 by P1 to P7 port respectively.Among this first embodiment, each electrode group 100/200 comprises 3 electrode chains 110/210, the i.e. situation of M=3 or N=3.
In this case, just described M is the odd number greater than 2, so for x the first electrode group 100, from the 1st first electrode chains 110 to INT[M/2]+1 first electrode chains 110, insert first electrode chains 110 of [x-1] first an electrode group 100 between every pair first electrode chains 110 successively; From INT[M/2]+1 first electrode chains 110 is to M root first electrode chains 110, inserts first electrode chains 110 of [x+1] individual first electrode group 100 between every pair first electrode chains 110 successively; Described INT[M/2] be meant function to the operation result round numbers of M/2 part.Equally, for described N is under the situation greater than 2 odd number, described N is the odd number greater than 2, so for y the second electrode group 200, from the 1st second electrode chains 210 to INT[N/2]+1 second electrode chains 210, insert second electrode chains 210 of [y-1] individual second an electrode group 200 between every pair second electrode chains 210 successively; From INT[N/2]+1 second electrode chains 210 is to N root second electrode chains 210, inserts second electrode chains 210 of [y+1] individual second electrode group 200 between every pair second electrode chains 210 successively; Described INT[N/2] be meant function to the operation result round numbers of N/2 part.
The 3rd electrode group 100/200 with access interface P3 is an example, described electrode group 100/200 has three electrode chains 110/210, inserts an electrode chains 110/210 of the 2nd electrode group 100/200 of access interface P2 between the 1st to the 2nd electrode chains 110/210 respectively; Between the 2nd to the 3rd electrode chains 110/210, insert an electrode chains 110/220 of the 4th electrode group 100/200 of access interface P4 respectively.
Clearly, all drive electrode chains all are electrically connected the scheme of pumping signal module 800 or sensing control module 900 compared to existing technology, the present invention has significantly reduced the electrode group that is equivalent to the prior art electrode chains by electrode chains 110/210 in parallel, and guarantee to point or the touch area of writing pencil can cover at least 3 row and 3 electrode chains that adhere to different electrode groups separately that are listed as by the mode of alternative arrangement, reduce design cost, simplified the program that detecting touches.Solved the contradiction that exists between electrode separation that prior art runs into and the number of electrodes.
As shown in Figure 3, still comprise seven groups of electrode groups 100/200, i.e. X=7 or Y=7 in the arrangement of electrodes scheme of second embodiment of the invention; Each electrode group 100/200 is connected to pumping signal module 800 or sensing control module 900 by P1 to P7 port respectively.Among this second embodiment, each electrode group 100/200 comprises four electrode chains 110/210, the i.e. situation of M=4 or N=4.
In this case, just described M is the even number greater than 2, so for x the first electrode group 100, x is arbitrary value in 1 to X, to [M/2] root first electrode chains 110, insert first electrode chains 110 of [x-1] first an electrode group 100 from the 1st first electrode chains 110 between every pair first electrode chains 110 successively; First electrode chains 110 is to M root first electrode chains 110 from [M/2]+1, inserts first electrode chains 110 of [x+1] individual first electrode group 100 between every pair first electrode chains 110 successively; Described INT[M/2] be meant function to the operation result round numbers of M/2 part.In like manner, described N is the even number greater than 2, so for y the second electrode group 200, y is arbitrary value in 1 to Y, to [N/2] root second electrode chains 210, insert second electrode chains 210 of [y-1] second an electrode group 200 from the 1st second electrode chains 210 between every pair second electrode chains 210 successively; Second electrode chains 210 is to N root second electrode chains 210 from [N/2]+1, inserts second electrode chains 210 of [y+1] individual second electrode group 200 between every pair second electrode chains 210 successively; Described INT[N/2] be meant function to the operation result round numbers of N/2 part.
Second embodiment of the invention owing to be positioned at the difference access interface P1 of both sides and there are not two adjacent electrode groups 100/200 in the electrode group 100/200 of port P7, therefore, is only inserted the electrode chains 110/210 of an adjacent electrode group 100/200; And just implement according to such scheme fully for the electrode group of difference access interface P2 to P6.The 3rd electrode group 100/200 with access interface P3 is an example, and described electrode group 100/200 has four electrode chains 110/210, inserts an electrode chains 110/210 of the 2nd electrode group 100/200 of access interface P2 between the 1st to the 2nd electrode chains 110/210; Between the 3rd to the 4th electrode chains 110/210, insert an electrode chains 110/220 of the 4th electrode group 100/200 of access interface P4.Described the 4th embodiment reaches the purpose of the quantity that reduces the electrode group 100/200 that inserts pumping signal module 800 or sensing control module 900, and make by alternative arrangement to touch area and can cover 3 * 3 electrode chains 110/210 that adhere to different electrode groups 100/200 separately, solved the contradiction that exists between electrode separation that prior art runs into and the number of electrodes.
Can further be embodied as third embodiment of the invention by described second embodiment, as shown in Figure 4, i.e. the situation of M=N=4.In practice, the situation of M=N can further be saved design cost; But the situation for M ≠ N is suitable equally, as long as keep grouping electrode chains 110/210 in parallel and at the technology contents that inserts the electrode chains 110/210 of adjacent electrode group 100/200 on the same group between two electrode chains 110/210, just can reach technique effect of the present invention.In third embodiment of the invention, owing to be positioned at the difference access interface P1 of both sides and there are not two adjacent electrode groups 100/200 in the electrode group 100/200 of port P7, therefore, the 1st electrode group that inserts a side ports P1 is only in parallel 3 electrode chains 110/210 have been deleted an electrode chains that does not have adjacent electrode group one side; Insert the 7th electrode group of opposite side port P7 also only in parallel 3 electrode chains 110/210, deleted an electrode chains that does not have adjacent electrode group one side.Design cost can be further saved in this design.
Fourth embodiment of the invention as shown in Figure 5, is that M or N are the situations of odd number, and promptly M or N are 5.Owing to be positioned at the difference access interface P1 of both sides and there are not two adjacent electrode groups 100/200 in the electrode group 100/200 of port P5, therefore, only insert the electrode chains 110/210 of an adjacent electrode group 100/200; And just implement according to such scheme fully for the electrode group of difference access interface P2 to P4.The 3rd electrode group 100/200 with access interface P3 is an example, described electrode group 100/200 has five electrode chains 110/210, inserts an electrode chains 110/210 of the 2nd electrode group 100/200 of access interface P2 between the 1st to the 3rd electrode chains 110/210 respectively; Between the 3rd to the 5th electrode chains 110/210, insert an electrode chains 110/220 of the 4th electrode group 100/200 of access interface P4 respectively.Described the 4th embodiment reaches the purpose of the quantity that reduces the electrode group 100/200 that inserts pumping signal module 800 or sensing control module 900, and make by alternative arrangement to touch area and can cover 3 * 3 electrode chains 110/210 that adhere to different electrode groups 100/200 separately, solved the contradiction that exists between electrode separation that prior art runs into and the number of electrodes.
Fifth embodiment of the invention as shown in Figure 6, is that M or N are 5 another kind of arrangement of electrodes schemes.In this scheme, from the 1st electrode chains 110/210 to INT[M/2]+1 electrode chains 110/210, choose at least one pair of electrode chains 110/210 and insert the electrode chains 110/210 of [x-1] electrode group 100/200, rather than between every pair of electrode chains 110/210, insert first electrode chains 110/210 of [x-1] electrode group 100/200 as mentioned above successively; Equally, from INT[M/2]+1 electrode chains 110/210 is to M root first electrode chains 110/210, choose at least one pair of electrode chains 110/210 and insert the electrode chains 110/210 of [x+1] individual electrode group 100/200, rather than between every pair of electrode chains 110, insert first electrode chains 110/210 of [x+1] individual electrode group 100/200 as mentioned above successively; Described INT[M/2] be meant function to the operation result round numbers of M/2 part.The 3rd electrode group 100/200 with access interface P3 is an example, described electrode group 100/200 has five electrode chains 110/210, in the 1st to the 3rd electrode chains 110/210, only between the 1st and the 2nd electrode chains 110/210, insert an electrode chains 110/210 of the 2nd electrode group 100/200 of access interface P2, and not at insertion electrode chains 110/210 between the electrode chains 110/210 between the 2nd and the 3rd; In the 3rd to the 5th electrode chains 110/210, only between the 4th and the 5th electrode chains 110/210, insert an electrode chains 110/220 of the 4th electrode group 100/200 of access interface P4, and not the 3rd with the 4th electrode chains 110/210 between insertion electrode chains 110/210.The scheme of described the 5th embodiment reaches the purpose of the quantity that reduces the electrode group 100/200 that inserts the pumping signal module 800 or second control module 900, and make by alternative arrangement to touch area and can cover 3 * 3 electrode chains 110/210 that adhere to different electrode groups 100/200 separately, solved the contradiction that exists between electrode separation that prior art runs into and the number of electrodes.
The various embodiments described above have all obtained the common technique effect, all reach the quantity of drawing that reduces electrode group 100/200, to save the receiving port of related-data handling module, and make by alternative arrangement to touch area and can cover and satisfy the electrode chains that adheres to different electrode groups 100/200 separately 110/210 that the data processing of information amount requires, solved the contradiction that exists between electrode separation that prior art runs into and the number of electrodes.
Though the various embodiments described above are example with the mutual capacitance touchscreens, but those of ordinary skills can consciously use for reference the foregoing description and be applied to the self-capacitance touch-screen, therefore, the various embodiments described above are applicable to the self-capacitance touch-screen, and technical scheme of the present invention also is suitable for the self-capacitance touch-screen.
Shown in the deployment scenarios of electrode chains 110/210 also have a lot of versions, but all similar, can use for reference mutually.As long as keep grouping electrode chains 110/210 in parallel and inserting the technology contents of the electrode chains 110/210 of adjacent electrode group 100/200 on the same group between two electrode chains 110/210, and reach technique effect of the present invention, just should belong in protection scope of the present invention.
Claims (8)
1. the capacitive touch screen of an electrodes in staggered arrangement comprises being positioned at same plane or adhering to first electrode layer and the second electrode lay on plane separately separately, and described first electrode layer comprises X the first electrode group (100); Described the second electrode lay comprises Y the second electrode group (200) second; X and Y are not less than 1 natural number; It is characterized in that:
The described first electrode group (100) comprises first electrode chains (110) of at least two parallel connections, and every first electrode chains (110) comprises first electrode (111) that is cascaded; The center line of all first electrode chains (110) is all parallel to each other; The described second electrode group (200) comprises second electrode chains (210) of at least two parallel connections, and every second electrode chains (210) comprises second electrode (211) that is cascaded; The center line of all second electrode chains (210) is all parallel to each other; The center line of the center line of arbitrary described first electrode chains (110) and arbitrary described second electrode chains (210) is orthogonal;
Inserted at least one first electrode chains (110) of at least one the first electrode group (100) adjacent between at least one pair of adjacent first electrode chains (110) of arbitrary first electrode group (100), thereby made all first electrode group (100) alternative arrangement with this first electrode group (100); Each second electrode group (200) has at least one second electrode chains (210) that has inserted at least one the second electrode group (200) adjacent with this second electrode group (200) between a pair of adjacent second electrode chains (210) at least, thereby makes all second electrode group (200) alternative arrangement.
2. the capacitive touch screen of electrodes in staggered arrangement according to claim 1 is characterized in that:
Each described first electrode group (100) comprises M root first electrode chains (110); Each described second electrode group (200) comprises N root second electrode chains (210); M and N are not less than 1 natural number.
3. the capacitive touch screen of electrodes in staggered arrangement according to claim 2 is characterized in that:
Described M is the even number greater than 2, so for x the first electrode group (100), x is arbitrary value in 1 to X, to [M/2] root first electrode chains (110), insert first electrode chains (110) of one [x-1] the first electrode group (100) from the 1st first electrode chains (110) between every pair first electrode chains (110) successively; First electrode chains (110) inserts first electrode chains (110) of [x+1] the individual first electrode group (100) successively to M root first electrode chains (110) between every pair first electrode chains (110) from [M/2]+1;
Described M is the odd number greater than 2, so for x the first electrode group (100), from the 1st first electrode chains (110) to INT[M/2]+1 first electrode chains (110), insert first electrode chains (110) of one [x-1] the first electrode group (100) between every pair first electrode chains (110) successively; From INT[M/2]+1 first electrode chains (110) is to M root first electrode chains (110), insert [x+1] individual first electrode to the M root first electrode chains (110) between every pair first electrode chains (110) successively, insert first electrode chains (110) of [x+1] the individual first electrode group (100) between every pair first electrode chains (110) successively;
Described INT[M/2] be meant function to the operation result round numbers of M/2 part.
4. the capacitive touch screen of electrodes in staggered arrangement according to claim 3 is characterized in that:
Described M=3, perhaps M=4.
5. the capacitive touch screen of electrodes in staggered arrangement according to claim 2 is characterized in that:
Described N is the even number greater than 2, so for y the second electrode group (200), y is arbitrary value in 1 to Y, to [N/2] root second electrode chains (210), insert second electrode chains (210) of one [y-1] the second electrode group (200) from the 1st second electrode chains (210) between every pair second electrode chains (210) successively; Second electrode chains (210) inserts second electrode chains (210) of [y+1] the individual second electrode group (200) successively to N root second electrode chains (210) between every pair second electrode chains (210) from [N/2]+1;
Described N is the odd number greater than 2, so for y the second electrode group (200), from the 1st second electrode chains (210) to INT[N/2]+1 second electrode chains (210), insert second electrode chains (210) of one [y-1] the individual second electrode group (200) between every pair second electrode chains (210) successively; From INT[N/2]+1 second electrode chains (210) is to N root second electrode chains (210), inserts second electrode chains (210) of [y+1] the individual second electrode group (200) between every pair second electrode chains (210) successively;
Described INT[N/2] be meant function to the operation result round numbers of N/2 part.
6. the capacitive touch screen of electrodes in staggered arrangement according to claim 5 is characterized in that:
Described N=3, perhaps N=4.
7. the capacitive touch screen of electrodes in staggered arrangement according to claim 1 is characterized in that:
Described capacitive touch screen is the self-capacitance touch-screen, also comprise with all first electrodes (111) and second electrode (211) over against equipotential electrode (311);
Described first electrode chains (110) and second electrode chains (210) all are electrically connected with the pumping signal module (800) of touch-screen peripheral hardware; Described equipotential electrode (311) is ground connection directly, perhaps is electrically connected with the DC source (700) of touch-screen peripheral hardware.
8. the capacitive touch screen of electrodes in staggered arrangement according to claim 1 is characterized in that:
Described capacitive touch screen is a mutual capacitance touchscreens, a kind of electrode chains in all first electrode chains (110) and all second electrode chains (210) is electrically connected with the pumping signal module (800) of described touch-screen peripheral hardware, and another kind of electrode chains just is electrically connected with the sensing control module (900) of described touch-screen peripheral hardware.
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