CN103246408A - Capacitive touch control plate - Google Patents
Capacitive touch control plate Download PDFInfo
- Publication number
- CN103246408A CN103246408A CN2012100278465A CN201210027846A CN103246408A CN 103246408 A CN103246408 A CN 103246408A CN 2012100278465 A CN2012100278465 A CN 2012100278465A CN 201210027846 A CN201210027846 A CN 201210027846A CN 103246408 A CN103246408 A CN 103246408A
- Authority
- CN
- China
- Prior art keywords
- electrode
- pattern
- electrode pattern
- district
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention discloses a capacitive touch control plate which comprises a substrate, multiple first axial electrodes and multiple second axial electrodes. Each first axial electrode comprises at least one first sensing electrode, wherein the first sensing electrode is provided with a first electrode pattern region and a second electrode pattern region. Each second axial electrode comprises at least one second sensing electrode, wherein the second sensing electrode is provided with a third electrode pattern region and a fourth electrode pattern region. The pattern density of each first electrode pattern region is larger than that of each second electrode pattern region, and the pattern density of each third electrode pattern region is larger than that of each fourth electrode pattern region.
Description
Technical field
The present invention relates to a kind of capacitive touch control plate, and particularly a kind of capacitive touch control plate has the electrode pattern district of different pattern density in single induction electrode.
Background technology
In recent years, more and more with the application product that Trackpad is integrated, comprise mobile phone (mobile phone), Position Fixing Navigation System (GPS navigator system), flat computer (tablet PC) and notebook (laptop PC) etc.The technical development of Trackpad at present is very diversified, and more common technology comprises resistance-type, condenser type and optical profile type etc.Wherein capacitive touch control plate has become the main flow touch technology that at present middle high-order consumption electronic products use owing to have characteristics such as high-accuracy, multi-point touch, high durability and high touch-control resolution.
The principle of operation of capacitive touch control plate is to use induction electrode to detect the capacitance variations of touch point position, and utilizes on the different directions axle tie line that links each induction electrode that signal is passed back to perform calculations and finish the location.Because common people's finger has certain magnitude range, for avoiding all dropping in the electrode pattern of single induction electrode when finger, cause algorithm correctly the interpolation problem that goes out position of touch take place, generally the electrode pattern of induction electrode is had the restriction of size.Therefore, along with the size of capacitive touch control plate strengthens, corresponding processor (processor or integrated circuit, therefore IC) required passage (channel) number also can increase, and it is complicated that the calculation mode also becomes.In other words, when the size of induction electrode need be kept certain specification, along with the size increasing of capacitive touch control plate, its hardware resource of carrying out the required consumption of computing also can become the burden that causes greatly on manufacturing and the cost.Therefore, how break through the size restriction of induction electrode with other modes, under the situation of the port number that does not increase IC, reach the performance of high touch-control resolution at the large size capacitive Trackpad, real direction of making great efforts for present association area personage.
In order to increase the touch-control sensitivity of capacitive touch control plate, utilized in Taiwan patent announcement I332169 number disalignment to each electrode slice on the difference of thread hole size and distribution design, make disalignment to each electrode slice have different real areas, in order to when touching, to produce the sensitivity that different capacitance coupling effect adjustment is touched.Yet this kind electrode design only can increase the sensitivity of touch-control and can't improve the resolution of touch-control.
Summary of the invention
Fundamental purpose of the present invention is providing a kind of capacitive touch control plate, utilizes the zone that has different electrode pattern density in each induction electrode design, and the resolution of touch-control is increased.
The invention provides a kind of capacitive touch control plate, comprise a substrate, many first axial electrode and many second axial electrode.Substrate has a first surface and a second surface.First axial electrode is arranged in the substrate, and first axial electrode is to extend along a first direction.Each first axial electrode comprises at least one first induction electrode, and first induction electrode has one first electrode pattern district and one second electrode pattern district.Second axial electrode is arranged in the substrate, and second axial electrode is to extend along a second direction.Each second axial electrode comprises at least one second induction electrode, and second induction electrode has a third electrode pattern area and one the 4th electrode pattern district.The pattern density (pattern density) in each first electrode pattern district is the pattern density greater than each second electrode pattern district, and the pattern density of each third electrode pattern area is the pattern density greater than each the 4th electrode pattern district.
The present invention is the zone that has different electrode pattern density by on each single induction electrode, make capacitive touch control plate of the present invention to improve the resolution of touch-control effectively not changing induction electrode size and need not increasing under the situation of port number of corresponding processor.
Description of drawings
Fig. 1 and Fig. 2 have illustrated the synoptic diagram of the capacitive touch control plate of first preferred embodiment of the invention.
Fig. 3 has illustrated the cross-sectional schematic of the capacitive touch control plate of second preferred embodiment of the invention.
Fig. 4 has illustrated the cross-sectional schematic of the capacitive touch control plate of third preferred embodiment of the invention.
Fig. 5 has illustrated the cross-sectional schematic of the capacitive touch control plate of four preferred embodiment of the invention.
Fig. 6 has illustrated the touch-control sensing computing synoptic diagram of the capacitive touch control plate of first preferred embodiment of the invention to Fig. 9.
Figure 10 has illustrated the synoptic diagram of the capacitive touch control plate of fifth preferred embodiment of the invention.
Figure 11 has illustrated the synoptic diagram of the capacitive touch control plate of sixth preferred embodiment of the invention.
Figure 12 has illustrated the synoptic diagram of the capacitive touch control plate of seventh preferred embodiment of the invention.
Figure 13 and Figure 14 have illustrated the synoptic diagram of the capacitive touch control plate of eighth preferred embodiment of the invention.
Wherein, description of reference numerals is as follows:
101 capacitive touch control plates, 102 capacitive touch control plates
103 capacitive touch control plates, 104 capacitive touch control plates
105 capacitive touch control plates, 106 capacitive touch control plates
107 capacitive touch control plates, 110 first axial electrode
111 first axial electrode, 112 first axial electrode
120 second axial electrode, 121 second axial electrode
122 second axial electrode, 130 first induction electrodes
140 second induction electrodes 150 first link electrode
160 second link electrode 170 dielectric layers
190 substrates, 191 first surfaces
192 second surfaces, 200 capacitive touch control plates
210 first axial electrode, 211 first axial electrode
212 first axial electrode, 220 second axial electrode
221 second axial electrode, 222 second axial electrode
230 first induction electrodes, 240 second induction electrodes
D1 end points D2 end points
N1 node N2 node
N3 node N4 node
The PA1 first electrode pattern district PA2 second electrode pattern district
PA3 third electrode pattern area PA4 the 4th electrode pattern district
S strip pattern S1 end points
S2 end points SP1 spacing
SP2 interval S P3 spacing
The SP4 spacing T1 duration of charging
T2 duration of charging T3 discharge time
T4 T11 discharge time time point
T12 time point T21 time point
T22 time point TA1 Touch Zone
TA3 Touch Zone, TA2 Touch Zone
TA4 Touch Zone V reference voltage
W1 width W 2 width
W3 width W 4 width
X first direction Y second direction
The Z third direction
Embodiment
Used some vocabulary to censure specific element in the middle of this instructions and the follow-up claim.The person with usual knowledge in their respective areas should understand, and the producer may call same element with different nouns.This instructions and follow-up claim are not used as the mode of distinct elements with the difference of title, but the benchmark that is used as distinguishing with the difference of element on function." comprising " of mentioning in the middle of instructions and the follow-up request item in the whole text is an open term, so should be construed to " comprise but be not limited to ".Moreover, can further understand the present invention for making the general skill person who has the knack of the technical field of the invention, hereinafter the spy enumerates several preferred embodiments of the present invention, and conjunction with figs., describes constitution content of the present invention in detail.Be noted that accompanying drawing only for the purpose of description, do not map according to life size.In addition, for example use in the text " first " with " second " wait narration, only in order to distinguish different elements, not to its generation restriction in proper order.
Please refer to Fig. 1 and Fig. 2.Fig. 1 and Fig. 2 have illustrated the synoptic diagram of the capacitive touch control plate of first preferred embodiment of the invention, and wherein Fig. 1 is top view, and Fig. 2 is the cross-sectional schematic along the A-A ' hatching line of Fig. 1.For convenience of description, each accompanying drawing of the present invention is only for illustrating that in order to easy understanding the present invention its detailed ratio can be adjusted according to the demand of design.As Fig. 1 and shown in Figure 2, the capacitive touch control plate 101 of first preferred embodiment of the present invention comprises a substrate 190, many first axial electrode 110 and many second axial electrode 120.Substrate 190 has a first surface 191 and a second surface 192, and the substrate 190 of present embodiment can comprise hard substrate for example substrate of glass and ceramic bases or for example plastic cement substrate or the formed substrate of other suitable materials of flexible substrates (flexible substrate).First axial electrode 110 is arranged on the first surface 191 of substrate 190, and first axial electrode 110 is to extend along a first direction X.Each first axial electrode 110 can comprise that a plurality of first induction electrodes 130 link electrode 150 along first direction X setting and a plurality of first and are separately positioned between the two first adjacent induction electrodes 130, in order to be electrically connected first induction electrode 130 of same first axial electrode 110.Second axial electrode 120 is arranged on the first surface 191 of substrate 190, and second axial electrode 120 is to extend along a second direction Y.Each second axial electrode 120 can comprise that a plurality of second induction electrodes 140 link electrode 160 along second direction Y setting and a plurality of second and are separately positioned between the two second adjacent induction electrodes 140, in order to be electrically connected second induction electrode 140 of same second axial electrode 120.In the present embodiment, first direction X is perpendicular to second direction Y substantially, but not as limit.What deserves to be explained is that each first induction electrode 130 has one first electrode pattern district PA1 and one second electrode pattern district PA2, and each second induction electrode 140 have a third electrode pattern area PA3 and one the 4th electrode pattern district PA4.The first electrode pattern district PA1 of each first induction electrode 130 and the second electrode pattern district PA2 are the figures of symmetry, and respectively third electrode pattern area PA3 and the 4th electrode pattern district PA4 of second induction electrode 140 are figures of symmetry.The pattern density (pattern density) of each first electrode pattern district PA1 is the pattern density greater than each second electrode pattern district PA2, and the pattern density of each third electrode pattern area PA3 is the pattern density greater than each the 4th electrode pattern district PA4.Because the difference of pattern density, for example formed capacity effect also can be different when above-mentioned each the first electrode pattern district PA1 of pointer touching, each the second electrode pattern district PA2, each third electrode pattern area PA3 of people's finger or tool electric conductivity and each the 4th electrode pattern district PA4 for the material that has a conduction property when use, so can drive with signal whereby and the calculation mode cooperate and reaches the effect that increases touch-control resolution.Detailed touch-control sensing drives with the calculation mode and will describe respectively at this paper back segment again.
As shown in Figure 1, in the capacitive touch control plate 101 of present embodiment, each first induction electrode 110 and each second induction electrode 120 can comprise a plurality of strip pattern S, but not as limit.That is; this embodiment each of the first electrode pattern region PA1 and PA2 of the second electrode pattern region and the difference between the pattern density of the third electrode pattern region PA3 and PA4 of the fourth electrode pattern between the pattern density region difference can be adjusted to the width of the stripe pattern S as well as the spacing between the stripe pattern S to achieve, but the present invention is not limited to the use of other suitable electrode pattern forming region of the first electrode pattern PA1 region with the second electrode pattern PA2 difference in density between the pattern and the third electrode pattern region PA3 and PA4 of the fourth electrode pattern regions the difference between the pattern density.In other words, the width W 1 of each strip pattern S of each first electrode pattern district PA1 can be different from the interval S P2 of S between each strip pattern that an interval S P1 between each strip pattern S of the width W 2 of each strip pattern S of each second electrode pattern district PA2 or each first electrode pattern district PA1 can be different from each second electrode pattern district PA2.In addition, the width W 3 of each strip pattern S of each third electrode pattern area PA3 can be different from that an interval S P3 between each strip pattern S of the width W 4 of each strip pattern S of each the 4th electrode pattern district PA4 or each third electrode pattern area PA3 can be different from and each strip pattern of each the 4th electrode pattern district PA4 between the interval S P4 of S.For instance, as shown in Figure 1, the width W 1 of each strip pattern S of each first electrode pattern district PA1 can be identical with the width W 2 of each strip pattern S of each second electrode pattern district PA2, and the interval S P1 between each strip pattern S of each first electrode pattern district PA1 can be less than the interval S P2 between each strip pattern S of each second electrode pattern district PA2, with so that the pattern density of each first electrode pattern district PA1 greater than the pattern density of each second electrode pattern district PA2.Same reason, the width W 3 of each strip pattern S of each third electrode pattern area PA3 can be identical with the width W 4 of each strip pattern S of each the 4th electrode pattern district PA4, and the interval S P3 between each strip pattern S of each third electrode pattern area PA3 can be less than the interval S P4 between each strip pattern S of each the 4th electrode pattern district PA4, with so that the pattern density of each third electrode pattern area PA3 greater than the pattern density of each the 4th electrode pattern district PA4.In other words, width or/and the spacing that also can optionally only adjust each strip pattern in each electrode pattern district in other embodiments of the invention adjusted in order to the size to pattern density.Each the first electrode pattern district PA1 and each the second electrode pattern district PA2 that also note that present embodiment are arranged alternately along first direction X, and each third electrode pattern area PA3 and each the 4th electrode pattern district PA4 are arranged alternately along second direction Y.Therefore, can form a Touch Zone TA1, a Touch Zone TA2, a Touch Zone TA3 and a Touch Zone TA4 in the zone that each first axial electrode 110 and each second axial electrode 120 are interlocked.Wherein, Touch Zone TA1 comprises that the part first electrode pattern district PA1 and part third electrode pattern area PA3, Touch Zone TA2 comprise that the part second electrode pattern district PA2 and part third electrode pattern area PA3, Touch Zone TA3 comprise the part second electrode pattern district PA2 and part the 4th electrode pattern district PA4 and Touch Zone TA4 comprises the part first electrode pattern district PA1 and part the 4th electrode pattern district PA4.Because the pattern density of each first electrode pattern district PA1 is greater than the pattern density of each second electrode pattern district PA2, and the pattern density of each third electrode pattern area PA3 is greater than the pattern density of each the 4th electrode pattern district PA4, therefore for example formed capacity effect also can be different during pointer touching above-mentioned each Touch Zone TA1, Touch Zone TA2, Touch Zone TA3 and the Touch Zone TA4 of people's finger or tool electric conductivity when using the material with conduction property, so can reach the effect of increase touch-control resolution whereby.
As shown in Figure 2, the capacitive touch control plate 101 of present embodiment can comprise also that a dielectric layer 170 and a protective seam 180 are arranged in the substrate 190.Dielectric layer 170 is arranged on first and links between electrode 150 and the second binding electrode 160, electrically completely cuts off first in order to the zone that interlocks in each first axial electrode 110 and each second axial electrode 120 and links electrode 150 and the second binding electrode 160.Protective seam 180 can reach the effect of protection in order to cover first axial electrode 110 and second axial electrode 120.The material of dielectric layer 170 and protective seam 180 can distinctly comprise for example for example acrylic resin (acrylic resin) or other material that is fit to of silicon nitride (silicon nitride), monox (silicon oxide) and silicon oxynitride (silicon oxynitride), organic material of inorganic material.In the present embodiment, each first axial electrode 110 can comprise for example tin indium oxide (indium tin oxide of transparent conductive material with the material of each second axial electrode 120, ITO), indium zinc oxide (indium zinc oxide, IZO) with aluminum zinc oxide (aluminum zinc oxide, AZO) or other nontransparent conductive materials that are fit to for example composite bed of silver, aluminium, copper, magnesium, molybdenum, above-mentioned material or the alloy of above-mentioned material, but not as limit.In addition, what deserves to be explained is, each first axial electrode 110 and each second axial electrode 120 can be respectively by same material formation in order to reaching the effect of simplifying technology, but the present invention not as limit and can be optionally with different materials form each first induction electrode 130 respectively, each first links electrode 150, each second induction electrode 140 and each second binding electrode 160.For instance, each first induction electrode 130, each second induction electrode 140 and each second link electrode 160 can by same transparent conductive material for example tin indium oxide formed, and first link that electrode 150 can for example metal bridge wiring or electrically conducting transparent bridging line (for example be indium tin oxide Indium tin oxide by a single layer bridge wiring, ITO), or the stacked structure that for example formed by metal material and electrically conducting transparent material of composite bed bridging line, reduce the anti-effect of first axial electrode, 110 overall electrical resistance in order to reach.Note that also that in the present embodiment dielectric layer 170 optionally only is arranged on the staggered zone of each first axial electrode 110 and each second axial electrode 120, in order to electrically isolated first to link electrode 150 and the second binding electrode 160.As shown in Figure 2, dielectric layer 170 can cover substrate 190, first induction electrode 130 and second links on the electrode 160, and part is exposed first induction electrode 130.The first binding electrode 150 can be arranged on the dielectric layer 170 and with the first adjacent induction electrode 130 that partly exposes and be electrically connected.
Please refer to Fig. 3, and in the lump with reference to figure 1.Fig. 1 and Fig. 3 have illustrated the synoptic diagram of the capacitive touch control plate of second preferred embodiment of the invention, and wherein Fig. 1 is top view, and Fig. 3 is the cross-sectional schematic along the A-A ' hatching line of Fig. 1.As Fig. 1 and shown in Figure 3, the capacitive touch control plate 102 of present embodiment and above-mentioned capacitive touch control plate 101 different be in, in capacitive touch control plate 102, dielectric layer 170 is to cover each first induction electrode 130, each second induction electrode 140 and each second to link electrode 160, and dielectric layer 170 has a plurality of contact hole 170H and partly exposes each first induction electrode 130.Each first binding electrode 150 is to be electrically connected with each first induction electrode 130 by each contact hole 170H.What deserves to be explained is, first of present embodiment link electrode 150 only part inserts among the contact hole 170H of dielectric layer 170, insert fully among the contact hole 170H of dielectric layer 170 and be electrically connected with first induction electrode 130 and in other embodiments of the invention also can be optionally link electrode 150 with first.The capacitive touch control plate 102 of present embodiment arranges the position except contact hole 170H and dielectric layer 170, and the feature of all the other each parts is similar to the capacitive touch control plate 101 in above-mentioned first preferred embodiment to material behavior, at this and repeat no more.
Please refer to Fig. 4, and in the lump with reference to figure 1.Fig. 1 and Fig. 4 have illustrated the synoptic diagram of the capacitive touch control plate of third preferred embodiment of the invention, and wherein Fig. 1 is top view, and Fig. 4 is the cross-sectional schematic along the A-A ' hatching line of Fig. 1.As Fig. 1 and shown in Figure 4, the capacitive touch control plate 103 of present embodiment and above-mentioned capacitive touch control plate 101 different be in, in capacitive touch control plate 103, first links electrode 150 is arranged between substrate 190 and the dielectric layer 170, second links electrode 160 is arranged on the dielectric layer 170, dielectric layer 160 is to cover first to link on the electrode 150 and expose first two ends that link electrode 150 be that the position is electrically connected in substrate 190 and with the two ends of the first binding electrode 150 that exposes with part substrate 190, the first induction electrodes 130.In other words, in the present embodiment, can be earlier in substrate 190, form earlier first in regular turn and link electrode 150 and dielectric layer 170, and expose at the edge of dielectric layer 170 that first of part links electrode 150 usefulness so that first induction electrode 130 of follow-up formation can be electrically connected with the first binding electrode 150 whereby.Each component feature of the capacitive touch control plate 102 of present embodiment is similar to the capacitive touch control plate 101 in above-mentioned first preferred embodiment to material behavior, at this and repeat no more.
Please refer to Fig. 5, and in the lump with reference to figure 1.Fig. 1 and Fig. 5 have illustrated the synoptic diagram of the capacitive touch control plate of four preferred embodiment of the invention, and wherein Fig. 1 is top view, and Fig. 5 is the cross-sectional schematic along the A-A ' hatching line of Fig. 1.As Fig. 1 and shown in Figure 5, the capacitive touch control plate 104 of present embodiment and above-mentioned capacitive touch control plate 103 different be in, in capacitive touch control plate 104, dielectric layer 170 is to cover each first to link electrode 150, and dielectric layer 170 has a plurality of contact hole 170H and partly exposes each and first link electrode 150.In the present embodiment, contact hole 170H exposes part first and links electrode 150 and part substrate 190, but in other embodiments of the invention, contact hole 170H also can optionally only expose part first and link electrode 150.In addition, the dielectric layer 170 of present embodiment is complete covering substrate 190, but in other embodiments of the invention, dielectric layer 170 is only cover part substrate 190 optionally also.Each first induction electrode 130 is to be electrically connected with each first binding electrode 150 by each contact hole 170H.The capacitive touch control plate 104 of present embodiment is except contact hole 170H, and the feature of all the other each parts is similar to the capacitive touch control plate 103 in above-mentioned the 3rd preferred embodiment to material behavior, at this and repeat no more.
Please refer to Fig. 6, Fig. 8 and Fig. 9.Fig. 6, Fig. 8 and Fig. 9 have illustrated the touch-control sensing computing synoptic diagram of capacitive touch control plate under one first sensing drive pattern of a preferred embodiment of the present invention.Wherein, Fig. 8 is the duration of charging computing synoptic diagram of capacitive touch control plate when different electrode pattern density areas carry out touch-control sensing of present embodiment, and Fig. 9 is the discharge time computing synoptic diagram of capacitive touch control plate when different electrode pattern density areas carry out touch-control sensing of present embodiment.As Fig. 6, Fig. 8 and shown in Figure 9, under the first sensing drive pattern, when each the first electrode pattern district PA1 of material touching with conduction property, each the second electrode pattern district PA2, each third electrode pattern area PA3 and each the 4th electrode pattern district PA4, can reach distinguishable effect by formed capacity effect difference.For instance, when the bigger zone of touching pattern density for example when the first electrode pattern district PA1 and third electrode pattern area PA3, because formed electric capacity is bigger, can be longer than when touching the less zone of pattern density and for example be charged to the required time T of reference voltage V 2 (shown in Fig. 8 Lower Half) when the second electrode pattern district PA2 and the 4th electrode pattern district PA4 so will be charged to the required time T 1 of a reference voltage V (shown in Fig. 8 first half).Same reason, when the bigger zone of touching pattern density for example when the first electrode pattern district PA1 and third electrode pattern area PA3, because the electric capacity that forms is bigger, so will be longer than when touching the less zone of pattern density and for example discharge into the required time T of reference voltage V 4 (shown in Fig. 9 Lower Half) when the second electrode pattern district PA2 and the 4th electrode pattern district PA4 when discharging into the required time T of reference voltage V 3 (shown in Fig. 9 first half).By the above-mentioned computing that discharges and recharges the time, can tell the difference of pattern density zones of different adjacent on the same induction electrode 130/140 of touching.In addition, as shown in Figure 6, under the first sensing drive pattern, first axial electrode 110 carry out sensing sequential can to carry out the sequential of sensing disconnected from each other with second axial electrode 120, can make whereby when touching at Touch Zone TA2 and Touch Zone TA4, though the electrode pattern density that Touch Zone TA2 is corresponding with Touch Zone TA4 close (all comprising third electrode pattern area PA3 or the first electrode pattern district PA1 that the second electrode pattern district PA2 that the part pattern density is less or the 4th electrode pattern district PA4 and part pattern density are bigger), still can tell the difference of touching between Touch Zone TA2 and touching Touch Zone TA4 by the difference of sensing sequential, and then reach the effect of touch-control location.For instance, first axial electrode 111 is carried out sensing at time point T11, second axial electrode 122 is carried out sensing at time point T12, time point T11 and time point T12 are different, therefore when touching at Touch Zone TA2, can go out touch points in time point T11 interpretation and drop on the second less electrode pattern district PA2 of pattern density, but drop on the bigger third electrode pattern area PA3 of pattern density and go out touch points in time point T12 interpretation, can tell the difference between touching Touch Zone TA2 and touching Touch Zone TA4 by the way.In the present embodiment, the first sensing drive pattern is belong to so-called self-tolerant (self capacitance) sensing type of drive a kind of, that is to say that the applicable sensing at self-tolerant of capacitive touch control plate of the present invention drives.
Please refer to Fig. 7 to Fig. 9.Fig. 7 has illustrated the touch-control sensing computing synoptic diagram of capacitive touch control plate under one second sensing drive pattern of a preferred embodiment of the present invention to Fig. 9.As shown in Figure 7, under the second sensing drive pattern, the sequential that each first axial electrode 110 is carried out sensing is disconnected from each other.In particular, under the second sensing drive pattern, first axial electrode 111 is sent one at a time point T21 from end points D1 and is driven signal, make the end points S1 of second axial electrode 121 to receive a signal Data1 and to make the end points S2 of second axial electrode 122 to receive an other signal Data2 at time point T21 at time point T21, first axial electrode 112 is sent other one at an other time point T22 from end points D2 and is driven signal, makes the end points S1 of second axial electrode 121 to receive a signal Data3 and to make the end points S2 of second axial electrode 122 to receive an other signal Data4 at time point T22 at time point T22.By above-mentioned signal Data1 is performed calculations and can interpolation go out absolute coordinate values to signal Data4, that is to say when each first axial electrode 110 is carried out touch-control with each second axial electrode, 120 staggered formed node N1, node N2, node N3 and node N4 near zone and can differentiate the effect that difference reaches the location by above-mentioned type of drive.In addition, in the present invention, also the zone that can further have different pattern density respectively by near each induction electrode 130/140 each node reaches the effect that improves touch-control resolution.For instance, when touching near node N1 Touch Zone TA1, Touch Zone TA2, Touch Zone TA3 and can reach distinguishable effect by formed capacity effect is different during the TA4 of Touch Zone, and this also can utilize as the above-mentioned duration of charging or discharge time difference calculation reach the effect of differentiating the zone, the calculation mode of the duration of charging of the second sensing drive pattern with discharge time is identical with the above-mentioned first sensing drive pattern, at this and repeat no more.What deserves to be explained is, when near the Touch Zone TA2 of touching node N1 and Touch Zone TA4, though the electrode pattern density that Touch Zone TA2 is corresponding with Touch Zone TA4 is close, under this second sensing drive pattern, owing to also can interfere with near the electric field the node N2 during touching Touch Zone TA2, the signal Data2 that causes end points S2 to receive has subtle change, but the signal Data4 that can not cause signal Data3 that end points S1 receives and end points S2 to receive changes, so can judge and be actually touching Touch Zone TA2 but not touching Touch Zone TA4 via intersecting comparison.The mode of driving and calculation by the above-mentioned second sensing drive pattern also can reach the effect of multiple spot identification.In the present embodiment, the second sensing drive pattern is belong to so-called appearance formula (mutual capacitance) sensing type of drive mutually a kind of, that is to say that capacitive touch control plate of the present invention is applicable in the sensing driving of appearance formula mutually.
Please refer to Figure 10.Figure 10 has illustrated the synoptic diagram of the capacitive touch control plate of fifth preferred embodiment of the invention.As shown in figure 10, the capacitive touch control plate 105 of present embodiment and the Trackpad of above-mentioned first preferred embodiment 101 be different be in, in the present embodiment, each first electrode pattern district PA1 and each second electrode pattern district PA2 are arranged alternately along second direction Y, and each third electrode pattern area PA3 and each the 4th electrode pattern district PA4 are arranged alternately along first direction X.The capacitive touch control plate 105 of present embodiment being oppositely arranged the mode between the first electrode pattern district PA1, the second electrode pattern district PA2, third electrode pattern area PA3 and the 4th electrode pattern district PA4, for example the pattern density in material behavior, each electrode pattern district of each parts is adjusted mode to all the other features and the sensing compute mode under each sensing drive pattern is similar to above-mentioned preferred embodiment, at this and repeat no more.What deserves to be explained is, the electrode pattern density that relative two pattern area of the present invention are different can be by changing area or two kinds of condition adjustment of the distance between pattern of pattern, and the spacing that only changes between strip pattern with the width of fixing strip pattern in the above-described embodiments explains, but not as limit.
Please refer to Figure 11.Figure 11 has illustrated the synoptic diagram of the capacitive touch control plate of sixth preferred embodiment of the invention.As shown in figure 11, the capacitive touch control plate 106 of present embodiment and the Trackpad of above-mentioned first preferred embodiment 101 be different be in, in the present embodiment, interval S P1 between each strip pattern S of each first electrode pattern district PA1 can with each strip pattern S of each second electrode pattern district PA2 between interval S P2 identical, and the width W 1 of each strip pattern S of each first electrode pattern district PA can be different from the width W 2 of each strip pattern S of each second electrode pattern district PA2, interval S P3 between each strip pattern S of each third electrode pattern area PA3 can with each the 4th electrode pattern district PA4 between the interval S P4 of each strip pattern S identical, and the width W 3 of each strip pattern S of each third electrode pattern area PA3 can be different from the width W 4 of each strip pattern S of each the 4th electrode pattern district PA4, distributes in order to form different pattern densities.
Please refer to Figure 12.Figure 12 has illustrated the synoptic diagram of the capacitive touch control plate of seventh preferred embodiment of the invention.As shown in figure 12, the capacitive touch control plate 107 of present embodiment and the Trackpad of above-mentioned first preferred embodiment 101 be different be in, in the present embodiment, the width W 1 of each strip pattern S of each first electrode pattern district PA1 and interval S P1 between each strip pattern S of each first electrode pattern district PA1 can be different from the interval S P2 between each strip pattern S of the width W 2 of each strip pattern S of second electrode pattern district PA2 respectively and each second electrode pattern district PA2, and the interval S P3 between each strip pattern S of the width W 3 of each strip pattern S of each third electrode pattern area PA3 and each third electrode pattern area PA3 can be different from the interval S P4 between each strip pattern S of width W 4 and each the 4th electrode pattern district PA4 of each strip pattern S of each the 4th electrode pattern district PA4, in order to form different pattern density distributions.
Please refer to Figure 13 and Figure 14, Figure 13 and Figure 14 have illustrated the synoptic diagram of the capacitive touch control plate of eighth preferred embodiment of the invention, and wherein Figure 13 is top view, and Figure 14 is the cross-sectional schematic along the B-B ' hatching line of Figure 13.As Figure 13 and shown in Figure 14, the capacitive touch control plate 200 of the 8th preferred embodiment of the present invention comprises a substrate 190, many first axial electrode 210 and many second axial electrode 220.First axial electrode 210 is arranged on the second surface 192 of substrate 190, and each first axial electrode 210 is to extend along first direction X.Each first axial electrode 210 can comprise one first induction electrode 230.Second axial electrode 220 is arranged on the first surface 191 of substrate 190, and each second axial electrode 220 is to extend along second direction Y.Each second axial electrode 220 can comprise one second induction electrode 240.In the present embodiment, first direction X is vertically at second direction Y substantially, but not as limit.What deserves to be explained is, each first induction electrode 230 can comprise a strip electrode that extends along first direction X, each second induction electrode 240 can comprise a strip electrode that extends along second direction Y, and each first induction electrode 230 is overlapped with a plurality of second induction electrodes 240 on a third direction Z of vertical substrate 190.Capacitive touch control plate 200 namely is by the variation of each first induction electrode 230 of sensing with each formed vertical capacitor in second induction electrode, 240 overlapping regions, and reaches the effect of touch-control location.In the present embodiment, each first induction electrode 230 has one first electrode pattern district PA1 and one second electrode pattern district PA2, and each second induction electrode 240 has a third electrode pattern area PA3 and one the 4th electrode pattern district PA4.The pattern density of each first electrode pattern district PA1 is the pattern density greater than each second electrode pattern district PA2, and the pattern density of each third electrode pattern area PA3 is the pattern density greater than each the 4th electrode pattern district PA4.Each the first electrode pattern district PA1 and each the second electrode pattern district PA2 that also note that present embodiment are arranged alternately along second direction Y, and each third electrode pattern area PA3 and each the 4th electrode pattern district PA4 are arranged alternately along first direction X.Therefore, can form a Touch Zone TA1, a Touch Zone TA2, a Touch Zone TA3 and a Touch Zone TA4 in the zone that each first axial electrode 210 and each second axial electrode 220 are interlocked.Formed capacity effect difference during owing to each Touch Zone TA1, Touch Zone TA2, Touch Zone TA3 and Touch Zone TA4 is so can reach the effect that increases touch-control resolution whereby.The capacitive touch control plate 200 of present embodiment is except the induction electrode and each axial electrode relativeness that use strip, for example the pattern density in material behavior, each electrode pattern district of each parts is adjusted mode to all the other features and the sensing compute mode under each sensing drive pattern is similar to above-mentioned preferred embodiment, at this and repeat no more.
Comprehensive the above, capacitive touch control plate of the present invention is the zone that utilizes each induction electrode on each axial electrode to have different electrode pattern density, under the situation that does not change each induction electrode size, by the difference of formed capacity effect size, improve the touch-control resolution of capacitive touch control plate.Simultaneously, compare at the conventional condenser Trackpad of same touch-control resolution, capacitive touch control plate of the present invention can relatively reduce the port number of required processor, the effect that reaches simplified design and reduce cost.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. a capacitive touch control plate is characterized in that, comprising:
One substrate;
Many first axial electrode, be arranged in this substrate, and these many first axial electrode are to extend along a first direction, and wherein respectively this first axial electrode comprises at least one first induction electrode, and this first induction electrode has one first electrode pattern district and one second electrode pattern district; And
Many second axial electrode, be arranged in this substrate, and these many second axial electrode are to extend along a second direction, and wherein respectively this second axial electrode comprises at least one second induction electrode, and this second induction electrode has a third electrode pattern area and one the 4th electrode pattern district;
Wherein respectively the pattern density in this first electrode pattern district greater than the pattern density in this second electrode pattern district respectively, and respectively the pattern density of this third electrode pattern area greater than the pattern density in the 4th electrode pattern district respectively.
2. capacitive touch control plate as claimed in claim 1 is characterized in that, respectively this first induction electrode and respectively this second induction electrode comprise a plurality of strip patterns.
3. capacitive touch control plate as claimed in claim 2, it is characterized in that, respectively a width of respectively this strip pattern in this first electrode pattern district is identical with a width of respectively this strip pattern in this second electrode pattern district respectively, and respectively the respectively spacing between this strip pattern in this first electrode pattern district is different from the respectively respectively spacing between this strip pattern in this second electrode pattern district.
4. capacitive touch control plate as claimed in claim 2, it is characterized in that, respectively a width of respectively this strip pattern of this third electrode pattern area is identical with a width of respectively this strip pattern in the 4th electrode pattern district respectively, and respectively the respectively spacing between this strip pattern of this third electrode pattern area is different from the respectively respectively spacing between this strip pattern in the 4th electrode pattern district.
5. capacitive touch control plate as claimed in claim 2, it is characterized in that, respectively the respectively spacing between this strip pattern in this first electrode pattern district is identical with the respectively spacing between this strip pattern in this second electrode pattern district respectively, and respectively a width of respectively this strip pattern in this first electrode pattern district is different from a respectively width of respectively this strip pattern in this second electrode pattern district.
6. capacitive touch control plate as claimed in claim 2, it is characterized in that, respectively the respectively spacing between this strip pattern of this third electrode pattern area is identical with the respectively spacing between this strip pattern in the 4th electrode pattern district respectively, and respectively a width of respectively this strip pattern of this third electrode pattern area is different from a respectively width of respectively this strip pattern in the 4th electrode pattern district.
7. capacitive touch control plate as claimed in claim 2, it is characterized in that, respectively a width of respectively this strip pattern in this first electrode pattern district and respectively the respectively spacing between this strip pattern in this first electrode pattern district all be different from a width of respectively this strip pattern in this second electrode pattern district respectively and the respectively spacing between this strip pattern in this second electrode pattern district respectively.
8. capacitive touch control plate as claimed in claim 2, it is characterized in that, respectively a width of respectively this strip pattern of this third electrode pattern area and respectively the respectively spacing between this strip pattern of this third electrode pattern area all be different from a width of respectively this strip pattern in the 4th electrode pattern district respectively and the respectively spacing between this strip pattern in the 4th electrode pattern district respectively.
9. capacitive touch control plate as claimed in claim 1, it is characterized in that, respectively this first electrode pattern district of this first induction electrode and this second electrode pattern district are the figures of symmetry, and respectively this third electrode pattern area and the 4th electrode pattern district of this second induction electrode are the figures of symmetry.
10. capacitive touch control plate as claimed in claim 1, it is characterized in that, respectively this first axial electrode comprises that a plurality of first induction electrodes link electrode along this first direction setting and a plurality of first and are separately positioned between this adjacent two first induction electrode, in order to be electrically connected these a plurality of first induction electrodes of same first axial electrode; Respectively this second axial electrode comprises that a plurality of second induction electrodes link electrode along this second direction setting and a plurality of second and are separately positioned between this adjacent two second induction electrode, in order to be electrically connected these a plurality of second induction electrodes of same second axial electrode, and this capacitive touch control plate comprises that also a dielectric layer is arranged in this substrate, and wherein this dielectric layer is at least part of is arranged between this first binding electrode and this second binding electrode.
11. capacitive touch control plate as claimed in claim 10, it is characterized in that, respectively this first electrode pattern district is arranged alternately along this first direction with this second electrode pattern district respectively, and respectively this third electrode pattern area is arranged alternately along this second direction with the 4th electrode pattern district respectively.
12. capacitive touch control plate as claimed in claim 10, it is characterized in that, respectively this first electrode pattern district is arranged alternately along this second direction with this second electrode pattern district respectively, and respectively this third electrode pattern area is arranged alternately along this first direction with the 4th electrode pattern district respectively.
13. capacitive touch control plate as claimed in claim 1, it is characterized in that, respectively this first induction electrode comprises a strip electrode that extends along this first direction, respectively this second induction electrode comprises a strip electrode that extends along this second direction, and respectively this first induction electrode is overlapped with these a plurality of second induction electrodes on a third direction of vertical this substrate.
14. capacitive touch control plate as claimed in claim 13, it is characterized in that, this substrate has a first surface and a second surface, and these many first axial electrode are arranged on this second surface of this substrate, and these many second axial electrode are arranged on this first surface of this substrate.
15. capacitive touch control plate as claimed in claim 13, it is characterized in that, respectively this first electrode pattern district is arranged alternately along this second direction with this second electrode pattern district respectively, and respectively this third electrode pattern area is arranged alternately along this first direction with the 4th electrode pattern district respectively.
16. capacitive touch control plate as claimed in claim 1, it is characterized in that, under one first sensing drive pattern, the sequential that these many first axial electrode are carried out sensing is that the sequential of carrying out sensing with these many second axial electrode is disconnected from each other, charge and discharge time when respectively this first electrode pattern district is by touch-control is the charge and discharge time when respectively this second electrode pattern district is by touch-control, and the charge and discharge time when respectively this third electrode pattern area is by touch-control is the charge and discharge time when respectively the 4th electrode pattern district is by touch-control.
17. capacitive touch control plate as claimed in claim 1, it is characterized in that, under one second sensing drive pattern, respectively this first axial electrode sequential of carrying out sensing is disconnected from each other, charge and discharge time when respectively this first electrode pattern district is by touch-control is the charge and discharge time when respectively this second electrode pattern district is by touch-control, and the charge and discharge time when respectively this third electrode pattern area is by touch-control is the charge and discharge time when respectively the 4th electrode pattern district is by touch-control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100278465A CN103246408A (en) | 2012-02-08 | 2012-02-08 | Capacitive touch control plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100278465A CN103246408A (en) | 2012-02-08 | 2012-02-08 | Capacitive touch control plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103246408A true CN103246408A (en) | 2013-08-14 |
Family
ID=48925957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100278465A Pending CN103246408A (en) | 2012-02-08 | 2012-02-08 | Capacitive touch control plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103246408A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995632A (en) * | 2014-04-29 | 2014-08-20 | 京东方科技集团股份有限公司 | Touch screen and touch display device |
| CN105786276A (en) * | 2015-01-12 | 2016-07-20 | 辛纳普蒂克斯公司 | Circular outline single layer pattern |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070262962A1 (en) * | 2006-05-10 | 2007-11-15 | Cypress Semiconductor Corporation | Apparatus and method for reducing charge time and power consumption of a sensing device |
| TW200844827A (en) * | 2007-05-11 | 2008-11-16 | Sense Pad Tech Co Ltd | Transparent touch panel device |
| TW200915151A (en) * | 2007-09-29 | 2009-04-01 | Au Optronics Corp | Touch panel and manufacturing method thereof |
| CN101943975A (en) * | 2009-07-09 | 2011-01-12 | 敦泰科技有限公司 | Ultra-thin mutual capacitance touch screen and combined ultra-thin touch screen |
| CN102262925A (en) * | 2010-05-27 | 2011-11-30 | 富士胶片株式会社 | Conductive sheet and capacitive touch panel |
| TWM418341U (en) * | 2011-02-18 | 2011-12-11 | Sitronix Technology Corp | Capacitive touch panel and electrode structure thereof |
-
2012
- 2012-02-08 CN CN2012100278465A patent/CN103246408A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070262962A1 (en) * | 2006-05-10 | 2007-11-15 | Cypress Semiconductor Corporation | Apparatus and method for reducing charge time and power consumption of a sensing device |
| TW200844827A (en) * | 2007-05-11 | 2008-11-16 | Sense Pad Tech Co Ltd | Transparent touch panel device |
| TW200915151A (en) * | 2007-09-29 | 2009-04-01 | Au Optronics Corp | Touch panel and manufacturing method thereof |
| CN101943975A (en) * | 2009-07-09 | 2011-01-12 | 敦泰科技有限公司 | Ultra-thin mutual capacitance touch screen and combined ultra-thin touch screen |
| CN102262925A (en) * | 2010-05-27 | 2011-11-30 | 富士胶片株式会社 | Conductive sheet and capacitive touch panel |
| TWM418341U (en) * | 2011-02-18 | 2011-12-11 | Sitronix Technology Corp | Capacitive touch panel and electrode structure thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995632A (en) * | 2014-04-29 | 2014-08-20 | 京东方科技集团股份有限公司 | Touch screen and touch display device |
| US9477347B1 (en) | 2014-04-29 | 2016-10-25 | Boe Technology Group Co., Ltd. | Touch screen and touch display device |
| CN103995632B (en) * | 2014-04-29 | 2017-03-15 | 京东方科技集团股份有限公司 | A kind of touch screen and touch display unit |
| CN105786276A (en) * | 2015-01-12 | 2016-07-20 | 辛纳普蒂克斯公司 | Circular outline single layer pattern |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102385462B (en) | Touch panel | |
| CN105278782B (en) | The display device and its driving method of belt sensor | |
| CN105045440B (en) | Touch sensor integrated-type display device | |
| TW201333790A (en) | Capacitive touch panel | |
| US8653393B2 (en) | Touch screen panel | |
| US8823666B2 (en) | Touch sensor panel | |
| CN102455834B (en) | Electrostatic capacitive type touch screen panel | |
| KR101474061B1 (en) | Sensor for detecting proximity/motion and touch and display device having the same | |
| CN103793116B (en) | Contact panel | |
| CN102446044B (en) | Electrostatic capacity type touch screen panel | |
| CN105739799B (en) | Electrostatic capacitive type touch screen panel | |
| US20140152608A1 (en) | Touch panel | |
| CN102830881B (en) | Embedded touch display panel | |
| CN104182104A (en) | Touch control panel | |
| CN108415630B (en) | Device combined with capacitive touch sensor and manufacturing method thereof | |
| CN103376966A (en) | Electrostatic capacity type touch screen panel for display device and method of manufacturing the same | |
| CN106484172B (en) | Touch sensor integrated-type display device | |
| KR20130035763A (en) | Touch screen panel | |
| CN101320309A (en) | Single layer touch control sensing structure and touch control display panel using the same | |
| CN104635976A (en) | Touch screen panel and display device | |
| US8907919B2 (en) | Sensing structure of touch panel | |
| CN104750336A (en) | Electrostatic capacitive touch screen panel | |
| CN103870047A (en) | Touch control panel | |
| US9448668B2 (en) | Touch panel and manufacturing method thereof | |
| KR20110041109A (en) | Touch panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |