CN100489755C - Low impedance structure condenser type touch control panel and its production method - Google Patents
Low impedance structure condenser type touch control panel and its production method Download PDFInfo
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- CN100489755C CN100489755C CNB2007101807361A CN200710180736A CN100489755C CN 100489755 C CN100489755 C CN 100489755C CN B2007101807361 A CNB2007101807361 A CN B2007101807361A CN 200710180736 A CN200710180736 A CN 200710180736A CN 100489755 C CN100489755 C CN 100489755C
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Abstract
The present invention provides a capacitive touch control panel with low impedance structure and a manufacturing method, specifically including a capacitive touch control panel, a display device for using this panel as well as manufacturing method of capacitive touch control panel. The capacitive couch control panel comprises a first overlapping electrode layer, a second overlapping electrode layer as well as a dielectric layer in-between. The first electrode layer contains a first electrode series A and B which distribute along a first direction. The first electrode A and B contains a plurality of first direction electrodes. The second electrode layer contains a plurality of second direction electrodes, which line in tandem in the second direction. The first electrode series A and B form a non-link state within the first electrode layer; however, they receive a group signal detection of the system simultaneously.
Description
Technical field
The display device that the present invention relates to a kind of capacitive touch control plate and use this capacitive touch control plate.
Background technology
The flat display apparatus of display panel and use display panel becomes the main flow of all kinds of display device gradually.Display screen of the LCD monitor of the slim TV of family expenses, personal computer and laptop computer, mobile phone and digital camera etc. for example is the product of a large amount of use display panels.Along with product design trends towards user's guiding gradually, for considering user's operation ease, the display panel with touch-control input function becomes the emphasis of industry development gradually.
With the display panels is example, and as shown in Figure 1, traditional display panels with touch-control input function comprises display panel 10 and touch sensing board 30.Touch sensing board 30 is arranged on the display surface 11 of display panel 10.In other words, display panel 10 is by touch sensing board 30 outside show images.At present touch sensing board 30 technology of more widely using comprise two kinds of resistance-type and condenser types.
With the touch sensing board 30 of resistance-type, its drive principle is to utilize the mode of voltage drop to seek the coordinate of contact point.Touch sensing board 30 is divided into two-layer up and down, and applies a voltage difference on two-dimensional directional respectively.When the user clicks contact point on the touch sensing board 30, promptly produce the conducting loop in this contact point.This conducting loop promptly produces voltage drop in system, make system be judged the position of contact point.Yet this type of touch sensing board 30 also can't be done the multiple spot input, and can't carry out fingerprint recognition simultaneously.In addition, can make contact point produce the conducting loop because the user need apply certain pressure beginning, so this type of touch sensing board is subject to the minimum restriction that is used as power.
The drive principle of capacitor-type touch sensing board is then different with the electric resistance touch-control tablet.At the conventional condenser touch sensing board shown in Fig. 1 b, on the tablet 30 electrode 31 that in levels, is laid with directions X and Y direction respectively.When the user with finger or during other object contact induction plate, promptly can produce electric capacity difference.This moment, system can calculate position contacting according to this.Shown in Fig. 1 b, the electrode 31 of same row or column forms continuous electrode array respectively, and according to the sequential scanning of arranging on directions X and the Y direction.When electrode 31 quantity of same row or column are too much, easily make the resistance of entire system and capacitance too high.In addition, because the electrode array of each row or column needs gradation scanning, so the detection of system and difficult shortening of reaction time.
Summary of the invention
A purpose of the present invention is to provide a kind of capacitive touch control plate, has lower entire system coupling capacitance and resistance.
Another object of the present invention is to provide a kind of capacitive touch control plate, have short scanning and detect and the reaction time.
Another object of the present invention is to provide a kind of capacitive touch control plate, have less system loading.
Another object of the present invention is to provide a kind of display device, use capacitive touch control plate with less system loading.
Display device of the present invention comprises display panel and capacitive touch control plate.Capacitive touch control plate preferably is arranged on the display surface of display panel; The image of display panel on display surface can outwards show via capacitive touch control plate.When the user clicked image on the display surface, capacitive touch control plate can detect the position that the user clicks, and signal was reached back-end processor again and handled.
Capacitive touch control plate comprises first electrode layer, the second electrode lay and dielectric layer.First electrode layer and the second electrode lay overlaid; Dielectric layer then is located between first electrode layer and the second electrode lay, so that necessary Signal Spacing to be provided.First electrode layer comprises many first first electrode array and the first second electrode arrays that distribute along first direction.Each the first first electrode array and the first second electrode array include a plurality of first direction electrodes respectively.The second electrode lay comprises many second first electrode arrays that distribute and the second second electrode array on second direction, wherein each described second first electrode array and the described second second electrode array have a plurality of described second direction electrodes respectively.
The first first electrode array and the first second electrode array form notconnect state in first electrode layer, signal each other also can't produce common at first electrode layer.Yet the first first electrode array and the first second electrode array are accepted group's input of system synchronously, wherein when the described first first electrode array and the described first second electrode array were arranged in parallel, it is non-conterminous that the adjacent described first first electrode array is distinguished the corresponding described first second electrode array.Therefore when the first first electrode array or the first second electrode array detected the signal variation, system can be judged to be same situation and do not distinguished.
The first first electrode array and the first second electrode array can conllinear be arranged or parallel arrangement mode is arranged in first electrode layer.When the first first electrode array and the first second electrode array are positioned at same ranks on the first direction, detect signal on the first first electrode array and the first second electrode array and represent that all the user clicks the position and is positioned on the ranks of the first first electrode array and the first second electrode array institute conllinear.Because the length of the first first electrode array and the first second electrode array and the first direction number of electrodes that upward is provided with thereof all are less than the electrode array before cutting originally, therefore resistance that produces on the first first electrode array and the first second electrode array and coupling capacitance all are less than the electrode array that does not cut, and help reducing the load of entire system.
Be arranged in parallel and non-colinear when being provided with when the first first electrode array and the first second electrode array are, the first first electrode array is different with the coordinate figure that the first second electrode array is represented on the second direction dimension of quadrature.When carrying out input, the first first electrode array and the first second electrode array are regarded as same group, and are detected simultaneously.This kind designs in same time point and detects different electrode arrays, therefore can save whole detection time.
In above-mentioned capacitive touch control plate, described first first electrode array and the described first second electrode array are positioned at same row or same row on this first direction.
In above-mentioned capacitive touch control plate, this first electrode layer includes many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays, the adjacent described first first electrode array has the described first direction electrode of different quantity, make between described many first first electrode arrays and described many first second electrode arrays between the crack be that sawtooth distributes and oblique line distributes one of them.
In above-mentioned capacitive touch control plate, this first electrode layer includes many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays, and the adjacent described first first electrode array has this first direction electrode of equal number.
In above-mentioned capacitive touch control plate, also comprise one first connection gasket and one second connection gasket and be arranged at outside this first electrode layer, the wherein said first first electrode array extends a lead by one first end of this first electrode layer and this first connection gasket couples; The described first second electrode array extends a lead by one second end of this first electrode layer and this second connection gasket couples.
In above-mentioned capacitive touch control plate, also comprise one first connection gasket and be arranged at outside this first electrode layer, the wherein said first first electrode array couples with the described first second electrode array outside this first electrode layer by a lead, and this lead also is coupled to this first connection gasket.
In above-mentioned capacitive touch control plate, described many second direction electrodes series connection of adjacent part forms one second first electrode array, many described many second direction electrodes of adjacent part are then connected and are formed one second second electrode array in addition, wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay, and described second first electrode array and the synchronous group's input of accepting of the described second second electrode array.
In above-mentioned capacitive touch control plate, this the second electrode lay includes many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays, the adjacent described second first electrode array has this second direction electrode of different quantity, make between described many second first electrode arrays and described many second second electrode arrays between the crack be that sawtooth distributes and oblique line distributes one of them.
In above-mentioned capacitive touch control plate, this second electrode lay includes many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays, and the adjacent described second first electrode array has the described second direction electrode of equal number.
In above-mentioned capacitive touch control plate, also comprise one the 3rd connection gasket and one the 4th connection gasket is arranged at outside this second electrode lay, the wherein said second first electrode array extends a lead by one first end of this second electrode lay and the 3rd connection gasket couples; The described second second electrode array extends a lead by one second end of this second electrode lay and the 4th connection gasket couples.
In above-mentioned capacitive touch control plate, also comprise one the 3rd connection gasket and be arranged at outside this second electrode lay, the wherein said second first electrode array couples with the described second second electrode array outside this second electrode lay by a lead, and this lead also is coupled to the 3rd connection gasket.
In above-mentioned capacitive touch control plate, described first first electrode array and the described first second electrode array are arranged in parallel in this first electrode layer.
In above-mentioned capacitive touch control plate, wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay, and described second first electrode array and the described second second electrode array are accepted group's input synchronously, wherein when the described second first electrode array and the described second second electrode array were arranged in parallel, it is non-conterminous that the adjacent described second first electrode array is distinguished the corresponding described second second electrode array.
In above-mentioned capacitive touch control plate, described second first electrode array and the described second second electrode array are arranged in parallel in this first electrode layer.
The present invention provides a kind of method of making capacitive touch control plate simultaneously, comprises the following step: A, formation first electrode layer, it has many first first electrode arrays that distribute and the first second electrode array on first direction.This step makes each the first first electrode array and the first second electrode array have a plurality of first direction electrodes respectively simultaneously, and makes the first first electrode array and the first second electrode array form notconnect state in this first electrode layer.B, formation the second electrode lay and the first electrode layer overlaid, and make the second electrode lay have many second first electrode array and the second second electrode arrays that are provided with along this second direction, wherein make each described second first electrode array and the described second second electrode array have a plurality of these second direction electrodes respectively.C, the first first electrode array and the first second electrode array are carried out synchronous group's input, wherein when the described first second electrode array of be arranged in parallel many described first first electrode arrays and many, it is non-conterminous to make the adjacent described first first electrode array distinguish the corresponding described first second electrode array.And the formation dielectric layer, it is located between this first electrode layer and this second electrode lay.
In the method for above-mentioned manufacturing capacitive touch control plate, this first electrode layer forms step and comprises: make described first first electrode array and the described first second electrode array be positioned at same row or same row on this first direction.
In the method for above-mentioned manufacturing capacitive touch control plate, this first electrode layer forms step and comprises: form many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays; And the described first direction electrode that makes the adjacent described first first electrode array have different quantity; Gap between wherein said many first first electrode arrays and described many first second electrode arrays is the sawtooth distribution and oblique line distributes one of them.
In the method for above-mentioned manufacturing capacitive touch control plate, also comprise the following step: form one first connection gasket and one second connection gasket and be arranged at outside this first electrode layer; Extend a lead by one first end of this first electrode layer and couple the described first first electrode array and this first connection gasket; And extend a lead by one second end of this first electrode layer and couple the described first second electrode array and this second connection gasket.
In the method for above-mentioned manufacturing capacitive touch control plate, also comprise the following step: form one first connection gasket and be arranged at outside this first electrode layer; Outside this first electrode layer, couple described first first electrode array and the described first second electrode array by a lead; And couple this lead in this first connection gasket.
In the method for above-mentioned manufacturing capacitive touch control plate, this second electrode lay forms step and comprises: the described a plurality of second direction electrodes of the adjacent part of connecting form one second first electrode array; The described a plurality of second direction electrodes of other adjacent parts of connecting form one second second electrode array; Wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay; And described second first electrode array and the described second second electrode array carried out synchronous group's input.
In the method for above-mentioned manufacturing capacitive touch control plate, this second electrode lay forms step and comprises: form many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays; And this second direction electrode that makes the adjacent described second first electrode array have different quantity; Gap between wherein said many second first electrode arrays and described many second second electrode arrays is the sawtooth distribution and oblique line distributes one of them.
In the method for above-mentioned manufacturing capacitive touch control plate, also comprise the following step: one the 3rd connection gasket and one the 4th connection gasket are set outside this second electrode lay; Extend a lead by one first end of this second electrode lay and couple described second first electrode array and the 3rd connection gasket; And extend a lead by one second end of this second electrode lay and couple this second second electrode array and the 4th connection gasket.
In the method for above-mentioned manufacturing capacitive touch control plate, also comprise the following step: form one the 3rd connection gasket and be arranged at outside this second electrode lay; Outside this second electrode lay, couple described second first electrode array and the described second second electrode array by a lead; And couple this lead in the 3rd connection gasket.
In the method for above-mentioned manufacturing capacitive touch control plate, this first electrode layer forms step and comprises be arranged in parallel described first first electrode array and the described first second electrode array.
In the method for above-mentioned manufacturing capacitive touch control plate, this first electrode layer forms step and comprises: many described first first electrode arrays and many described first second electrode arrays be arranged in parallel; And it is non-conterminous to make the adjacent described first first electrode array distinguish the corresponding described first second electrode array.
In the method for above-mentioned manufacturing capacitive touch control plate, also comprise: when many adjacent described first first electrode arrays detect signal simultaneously, decision signal is produced by adjacent described many first first electrode arrays.
In the method for above-mentioned manufacturing capacitive touch control plate, this the second electrode lay is provided with step and comprises: along this second direction one second first electrode array and diethyl electrode array are set, make each described second first electrode array and the described second second electrode array have a plurality of these second direction electrodes respectively; Wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay; And described second first electrode array and the described second second electrode array carried out synchronous group's input.
Description of drawings
Fig. 1 a is for using the display device synoptic diagram of traditional contact panel;
Fig. 1 b is traditional capacitance type touch-control panel synoptic diagram;
Fig. 2 is the embodiment synoptic diagram of display device of the present invention;
Fig. 3 is the assembly exploded view of capacitive touch control plate embodiment of the present invention;
Fig. 4 a is the embodiment top view of capacitive touch control plate, wherein the first first electrode array and the first second electrode array conllinear;
Fig. 4 b is another embodiment top view of capacitive touch control plate, and wherein the first first electrode array and the first second electrode array couple with first connection gasket after coupling again;
Fig. 5 is another embodiment top view of capacitive touch control plate;
Fig. 6 a is another embodiment top view of capacitive touch control plate, and it has the second first electrode array and the second second electrode array;
Fig. 6 b and Fig. 6 c are the alternate embodiment top view of capacitive touch control plate shown in Fig. 6 a;
Fig. 7 is another embodiment top view of capacitive touch control plate, and wherein the first first electrode array and the first second electrode array are parallel to each other;
Fig. 8 a is an operation chart embodiment illustrated in fig. 7;
Fig. 8 b is an alternate embodiment embodiment illustrated in fig. 7;
Fig. 9 is the manufacture method embodiment process flow diagram of capacitive touch control plate;
Figure 10 and Figure 11 are the alternate embodiment of manufacture method shown in Figure 9.
And each description of reference numerals in the above-mentioned accompanying drawing is as follows:
100 display device
110 display panels
111 display surfaces
200 capacitive touch control plates
250 dielectric layers
300 first electrode layers
301 first ends
302 second ends
310,311,312 first first electrode arrays
320,321,322 first second electrode arrays
350 first direction electrodes
370 electrode arrays
410 first directions
420 second directions
500 the second electrode lays
510 second first electrode arrays
520 second second electrode arrays
550 second direction electrodes
600 connection gaskets
610 first connection gaskets
620 second connection gaskets
630 the 3rd connection gaskets
640 the 4th connection gaskets
Embodiment
The display device that the invention provides a kind of capacitive touch control plate and use this capacitive touch control plate.Capacitive touch control plate of the present invention comprises the capacitive touch control plate of external labeling type and is integrated in the capacitive touch control plate of display device panel.In addition, the display device of this place speech comprises but is not restricted to the flat display apparatus that uses display panel.Display panel preferably comprises display panels, organic LED display panel or other display panel.In addition, display panels comprises the display panels of penetrate through type liquid crystal display board, reflecting type liquid crystal display panel, half-penetration reflecting type liquid crystal display panel and other form.
In the embodiment shown in Figure 2, display device 100 comprises display panel 110 and capacitive touch control plate 200.Capacitive touch control plate 200 preferably is arranged on the display surface 111 of display panel 110; The image of display panel 110 on display surface 111 can outwards show via capacitive touch control plate 200.When the user clicked image on the display surface 111, capacitive touch control plate 200 can detect the position that the user clicks, and signal was reached back-end processor again and handled.Yet in different embodiment, capacitive touch control plate 200 of the present invention is not limited to be used in the display device 100, and it also can need the device of touch control operation to be used with other.
As shown in Figure 3, capacitive touch control plate 200 comprises first electrode layer 300, the second electrode lay 500 and dielectric layer 250.First electrode layer 300 and the second electrode lay 500 overlaids; 250 of dielectric layers are located in 500 of first electrode layer 300 and the second electrode lays, so that necessary Signal Spacing to be provided.First electrode layer 300 comprises the first first electrode array 310 and the first second electrode array 320 that distributes along first direction 410.Each the first first electrode array 310 and the first second electrode array 320 include a plurality of first direction electrodes 350 respectively.As shown in Figure 3, the second electrode lay 500 includes a plurality of second direction electrodes 550 of arranging and connecting along second direction 420.In this embodiment, first direction 410 preferably with second direction 420 quadratures; Yet in different embodiment, first direction 410 also can intersect at other angle of on-right angle with second direction 420.Change by the signal that produces on induction first direction electrode 350 and the second direction electrode 550, can determine the position that the user clicks on capacitive touch control plate 200.In addition, in different embodiment, when the position of touch that only needs to detect on the single dimension, also first electrode layer 300 can only be set and the second electrode lay 500 is not set.
See that by top view shown in Fig. 4 a the first first electrode array 310 and the first second electrode array 320 distribute along same direction, and be crisscross arranged to form the structure of trellis with electrode array that second direction electrode 550 forms; In other words, the first first electrode array 310 and the first second electrode array 320 are crossed over the electrode array that second direction electrode 550 forms across dielectric layer 250.Shown in Fig. 4 a, except that the electrode that is distributed in the edge, each first direction electrode 350 all is positioned between the electrode array of adjacent second direction electrode 550 formation; 550 at each second direction electrode is positioned at 320 of the adjacent first first electrode array 310 and/or the first second electrode arrays.By this setting, a plurality of first direction electrodes 350 are distributed on the capacitive touch control plate 200 with the form of a plurality of second direction electrodes 550 with approximate honeycomb, and each first direction electrode 350 is located between 4 second direction electrodes 550 that distribute with the formation of 2x2 array; Each second direction electrode 550 also is located in the 2x2 array and forms between 4 first direction electrodes 350 that distribute.Yet in different embodiment, a plurality of first direction electrodes 350 and a plurality of second direction electrodes 550 also can array or Else Rule and irregular mode arrange.
Shown in Fig. 4 a, the first first electrode array 310 and the first second electrode array 320 form notconnect state in first electrode layer 300; Promptly the first first electrode array 310 and the first second electrode array 320 are not had a signal and are connected in first electrode layer 300 yet, and signal each other also can't be common in 300 generations of first electrode layer.Yet the first first electrode array 310 and the first second electrode array 320 are accepted group's input of system synchronously; In other words, when carrying out input, the first first electrode array 310 and the first second electrode array 320 are regarded as same group, and are detected simultaneously.Therefore when the first first electrode array 310 or the first second electrode array 320 detected the signal variation, system can be judged to be same situation and do not distinguished.
In the embodiment shown in Fig. 4 a, the first first electrode array 310 and the first second electrode array 320 are positioned at the same ranks on the first direction 410.In other words, the first first electrode array 310 and the first second electrode array 320 can be considered and will cut two parts of back formation along the electrode array that first direction 410 distributes.In this embodiment, because the first first electrode array 310 and the first second electrode array 320 conllinear on first direction 410, therefore the first first electrode array 310 and the first second electrode array 320 are at the second direction 420 dimension previous generation epiphases coordinate together of quadrature.When detecting signal on the first first electrode array 310 and the first second electrode array 320, represent that all the user clicks the position and is positioned on the ranks of the first first electrode array 310 and 320 conllinear of the first second electrode array.Because the length of the first first electrode array 310 and the first second electrode array 320 and first direction electrode 350 quantity that upward are provided with thereof all are less than the electrode array before cutting originally, therefore resistance that produces on the first first electrode array 310 and the first second electrode array 320 and coupling capacitance all are less than the electrode array that does not cut, and help reducing the load of entire system.
Shown in Fig. 4 a, the first first electrode array 310 is connected with back-end system with second end, 302 extension wires by first end 301 of first electrode layer 300 respectively with the first second electrode array 320.In this embodiment, capacitive touch control plate 200 comprises first connection gasket 610 and second connection gasket 620 is arranged at respectively outside first electrode layer 300.The first first electrode array 310 and 320 of the first second electrode arrays are coupled to first connection gasket 610 and second connection gasket 620 respectively.System end can be respectively detects signal on the first first electrode array 310 and the first second electrode array 320 simultaneously via first connection gasket 610 and second connection gasket 620, clicks the coordinate of position on second direction 420 with the decision user.
In the embodiment shown in Fig. 4 b, first connection gasket 610 then only is set outside first electrode layer 300.The first first electrode array 310 and the first second electrode array 320 couple via lead outside first electrode layer in advance, couple with first connection gasket 610 more thereafter.This moment, the first first electrode array 310 formed state in parallel with the first second electrode array 320, system end detects signal on the first first electrode array 310 and the first second electrode array 320 simultaneously via the first single connection gasket 610, clicks the coordinate of position on second direction 420 with the decision user.
In the embodiment shown in Fig. 4 a and Fig. 4 b, include many first first electrode arrays 310 that are parallel to each other in first electrode layer 300.First electrode layer 300 also includes many first second electrode arrays 320 and the first first electrode array, 310 corresponding conllinear simultaneously.Each first first electrode array 310 all has identical length, is in series with the first direction electrode 350 of equal number on it; Each first second electrode array 320 all has identical length, also is in series with the first direction electrode 350 of equal number on it.Yet in the embodiment shown in fig. 5, partial parallel and the first adjacent first electrode array 310 have different length, and first direction electrode 350 quantity of series connection are also different on it; Similarly, the first corresponding second electrode array 320 has length and first direction electrode 350 quantity with 310 complementations of the first first electrode array, and therefore also length and the number of electrodes with the adjacent first second electrode array 320 is different.As shown in Figure 5, in this embodiment, many first first electrode arrays 310 present sawtooth with the gap of 320 of the corresponding first second electrode arrays and distribute, but not the straight line shown in Fig. 4 a and Fig. 4 b distributes.By this design, but the brightness change that homogenising causes because of the first first electrode array 310 and the gap of 320 of the corresponding first second electrode arrays makes the first first electrode array 310 be difficult for being found with the interstitial site of 320 of the corresponding first second electrode arrays.
In the embodiment shown in Fig. 6 a, except that the first first electrode array 310 and the first second electrode array 320 of first electrode layer 300, adjacent part second direction electrode 550 also can be connected and be formed the second first electrode array 510; Other adjacent part second direction electrodes 550 are then connected and are formed the second second electrode array 520.The second first electrode array 510 and the second second electrode array 520 form notconnect state in the second electrode lay 500; Promptly the second first electrode array 510 and the second second electrode array 520 are not had a signal and are connected in the second electrode lay 500 yet, and signal each other also can't be common in the second electrode lay 500 generations.Yet the second first electrode array 510 and the second second electrode array 520 are accepted group's input of system synchronously; In other words, when carrying out input, the second first electrode array 510 and the second second electrode array 520 are regarded as same group, and are detected simultaneously.Therefore when the second first electrode array 510 or the second second electrode array 520 detected the signal variation, system can be judged to be same situation and do not distinguished.
In the embodiment shown in Fig. 6 a, the second first electrode array 510 and the second second electrode array 520 are positioned at the same ranks on the second direction 420.In other words, the second first electrode array 510 and the second second electrode array 520 can be considered and will cut two parts of back formation along the electrode array that second direction 420 distributes.In this embodiment, because the second first electrode array 510 and the second second electrode array 520 conllinear on second direction 420, therefore the second first electrode array 510 and the second second electrode array 520 are at the first direction 410 dimension previous generation epiphases coordinate figure together of quadrature.When detecting signal on the second first electrode array 510 and the second second electrode array 520, represent that all the user clicks the position and is positioned on the ranks of the second first electrode array 510 and 520 conllinear of the second second electrode array.Because the length of the second first electrode array 510 and the second second electrode array 520 and second direction electrode 550 quantity that upward are provided with thereof all are less than the electrode array before cutting originally, therefore resistance that produces on the second first electrode array 510 and the second second electrode array 520 and coupling capacitance all are less than the electrode array that does not cut, and help reducing the load of entire system.
Shown in Fig. 6 a, the second first electrode array 510 is connected with back-end system by the extension wire of two ends up and down of the second electrode lay 500 respectively with the second second electrode array 520.In this embodiment, capacitive touch control plate 200 comprises the 3rd connection gasket 630 and the 4th connection gasket 640 is arranged at respectively outside the second electrode lay 500.The second first electrode array 510 and 520 of the second second electrode arrays are coupled to the 3rd connection gasket 630 and the 4th connection gasket 640 respectively.System end can be respectively detects signal on the second first electrode array 510 and the second second electrode array 520 simultaneously via the 3rd connection gasket 630 and the 4th connection gasket 640, clicks the coordinate of position on first direction 410 with the decision user.
In the embodiment shown in Fig. 6 b, the 3rd connection gasket 630 then only is set outside the second electrode lay 500.The second first electrode array 510 and the second second electrode array 520 couple via lead outside first electrode layer in advance, couple with the 3rd connection gasket 630 more thereafter.This moment, the second first electrode array 510 formed state in parallel with the second second electrode array 520, system end detects signal on the second first electrode array 510 and the second second electrode array 520 simultaneously via the 3rd single connection gasket 630, clicks the coordinate of position on first direction 410 with the decision user.
In the embodiment shown in Fig. 6 a and Fig. 6 b, include many second first electrode arrays 510 that are parallel to each other in the second electrode lay 500.The second electrode lay 500 also includes many second second electrode arrays 520 and the second first electrode array, 510 corresponding conllinear simultaneously.Each second first electrode array 510 all has identical length, is in series with the second direction electrode 550 of equal number on it; Each second second electrode array 520 all has identical length, also is in series with the second direction electrode 550 of equal number on it.Yet in the embodiment shown in Fig. 6 c, partial parallel and the second adjacent first electrode array 510 have different length, and second direction electrode 550 quantity of series connection are also different on it; Similarly, the second corresponding second electrode array 520 has length and second direction electrode 550 quantity with 510 complementations of the second first electrode array, and therefore also length and the number of electrodes with the adjacent second second electrode array 520 is different.Shown in Fig. 6 c, in this embodiment, many second first electrode arrays 510 present sawtooth distribution, oblique line distribution or trapezoidal profile with the gap of 520 of the corresponding second second electrode arrays, but not the straight line shown in Fig. 6 a and Fig. 6 b distributes.By this design, but the brightness change that homogenising causes because of the second first electrode array 510 and the gap of 520 of the corresponding second second electrode arrays makes the second first electrode array 510 be difficult for being found with the interstitial site of 520 of the corresponding second second electrode arrays.
In the embodiment shown in fig. 7, in first electrode layer 300, the first first electrode array 310 and the first second electrode array 320 are and are arranged in parallel, and the non-colinear setting.The coordinate figure that this moment, the first first electrode array 310 and the first second electrode array 320 were represented on second direction 420 dimensions of quadrature is different.Though the first first electrode array 310 and the first second electrode array 320 are not had a signal and be connected in first electrode layer 300, the first first electrode array 310 and the first second electrode array 320 are accepted group's input of system synchronously; In other words, when carrying out input, the first first electrode array 310 and the first second electrode array 320 are regarded as same group, and are detected simultaneously.This kind designs in same time point and detects different electrode arrays, therefore can save whole detection time.
As shown in Figure 7, in a preferred embodiment, the first first electrode array 310 that is arranged in parallel and the first second electrode array 320 couple outside first electrode layer 300 by lead earlier, couple with the connection gasket 600 that is arranged at outside first electrode layer 300, to be connected with back-end system again.In addition, include many first first electrode arrays 310 and many first second electrode arrays 320 in this embodiment, the first wherein adjacent first electrode array 310 the first second electrode array 320 that connects respectively non-conterminous.In other words, if the first first electrode array 310 and the first second electrode array 320 that couples mutually is considered as same group, it is adjacent then at most only to have a strip electrode string between one group of electrode array and other arbitrary group of electrode array; This adjacent electrode array can be the first first electrode array 310 or the first second electrode array 320.
When the user clicks Trackpad 200, can touch two adjacent electrode arrays simultaneously usually.Because the first first electrode array 310 and the first second electrode array 320 couple, so system is when detecting signal, and can't judge that its coordinate on second direction 420 should be the value of the first first electrode array, 310 representatives or the value of the first second electrode array, 320 representatives.This moment is if the first adjacent first electrode array 310 detects signal simultaneously, because the first second electrode array 320 and non-conterminous that 310 correspondences of these two first first electrode arrays couple, so system is that the position that the decidable user clicks should fall within the position that the first first electrode array 310 is passed through.
In the embodiment shown in Fig. 8 a, when the user clicked the first first electrode array 311, system can detect the signal of the first first electrode array 311 and the first second electrode array 321.Because the user can touch another first first electrode array 312 adjacent with the first first electrode array 311 usually simultaneously, so system can receive the signal of the first first electrode array 312 and the first second electrode array 322 simultaneously.Because the first first electrode array 311 is adjacent with the first first electrode array 312, thus system be the position that clicks of decidable user herein.In addition, in the embodiment shown in Fig. 8 b, also three strip electrode strings 370 can be coupled and be made as one group.It is adjacent at most only to have a strip electrode string 370 between every group of electrode array and other arbitrary group of electrode array, to judge the tram of touching that the user is put.
What must emphasize is that the embodiment shown in Fig. 7, Fig. 8 a and Fig. 8 b is applied in first electrode layer 300; Yet make equally in other embodiments, on the second direction electrode 550 of first direction electrode 350 that the parallel design of electrode array also can be applied to first electrode layer 300 simultaneously and the second electrode lay 500.In addition, also can cooperate the second direction electrode 550 in the second electrode lay 500 is designed to the conllinear electrode array form shown in Fig. 6 a to Fig. 6 c in the embodiment shown in fig. 7.
The present invention provides a kind of method of making capacitive touch control plate simultaneously.As shown in Figure 9, step 910 comprises formation first electrode layer, and it has the first first electrode array and the first second electrode array that distributes on first direction.This step makes each the first first electrode array and the first second electrode array have a plurality of first direction electrodes respectively simultaneously, and makes the first first electrode array and the first second electrode array form notconnect state in this first electrode layer.The mode that forms first electrode layer comprises various semiconductor technology, for example etching, deposition, plated film or other technology.
Step 930 comprises the formation the second electrode lay and the first electrode layer overlaid, and makes the second electrode lay have a plurality of second direction electrodes of arranging and connecting along second direction.Second direction preferably with the first direction quadrature, yet this two direction is also can other angle staggered.The mode that forms the second electrode lay comprises various semiconductor technology, for example etching, deposition, plated film or other technology; In addition, this step is preferably in first electrode layer, the second electrode lay or form dielectric layer between the two, with isolated first direction electrode and second direction electrode.
Step 950 comprises carries out synchronous group's input to the first first electrode array and the first second electrode array.This detection step can couple execution with the first first electrode array and the first second electrode array respectively via the first different connection gaskets and second connection gasket by system end; Maybe the first first electrode array and the first second electrode array can be coupled in advance, the first first electrode array and the first second electrode array be detected simultaneously via single connection gasket by system end again.
In the embodiment shown in fig. 10, step 910 can comprise step 1010, step 1030 and step 1050.Step 1010 comprises many first first electrode arrays that are parallel to each other of formation and corresponding many first second electrode arrays.Step 1030 comprises makes the first first electrode array and the first corresponding second electrode array be positioned at same ranks on first direction.Step 1050 comprises the first direction electrode that makes the first adjacent first electrode array have different length or different quantity.Therefore many first first electrode arrays and gap between many first second electrode arrays can be that sawtooth distributes, oblique line distribution or trapezoidal profile.By this design, but the brightness that homogenising causes because of the first first electrode array and the gap between corresponding first second electrode array change makes the first first electrode array be difficult for being found with interstitial site between the corresponding first second electrode array.In addition, because the length of the first first electrode array and the first second electrode array and the first direction number of electrodes that upward is provided with thereof all are less than the electrode array before cutting originally, therefore resistance that produces on the first first electrode array and the first second electrode array and coupling capacitance all are less than the electrode array that does not cut, and help reducing the load of entire system.
In the embodiment shown in fig. 11, step 910 can comprise step 1110 and step 1130.Step 1110 comprises be arranged in parallel many first first electrode arrays and many first second electrode arrays; This moment the first first electrode array not with the first second electrode array conllinear.Step 1130 comprise make adjacent 2 first first electrode arrays respectively correspondence be coupled to the non-conterminous first second electrode array.
When the user clicks Trackpad, can touch two adjacent electrode arrays simultaneously usually.Because the first first electrode array and the first second electrode array couple, so system is when detecting signal, and can't judge that its coordinate on second direction should be the value of the first first electrode array representative or the value of the first second electrode array representative.In step 1150, if detect signal in the first adjacent first electrode array simultaneously, because the corresponding first second electrode array that couples of this two first first electrode arrays institutes is also non-conterminous, so system can judge in step 1170 that detected signal generation position is the first adjacent first electrode array; In other words, the position that clicks of user should fall within the position that the adjacent first first electrode array is passed through.
What must emphasize is, the second direction electrode in the second electrode lay also can above-mentioned Fig. 8, Fig. 9 and the mode of Figure 10 make.By the adjustment of first direction electrode and second direction manufacture that electrode is used and structure, can increase the multiple selectivity in the design, and satisfy the demand of multiple different product.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, being contained in the modification of the spirit of claims and scope and equalization is provided with and all is contained in the scope of the present invention.
Claims (26)
1. capacitive touch control plate comprises:
One first electrode layer has many first first electrode arrays that distribute and the first second electrode array on a first direction, each described first first electrode array and the described first second electrode array have a plurality of first direction electrodes respectively; Wherein said first first electrode array and the described first second electrode array form notconnect state in this first electrode layer, and described first first electrode array and the described first second electrode array are accepted group's input synchronously, wherein when the described first first electrode array and the described first second electrode array were arranged in parallel, it is non-conterminous that the adjacent described first first electrode array is distinguished the corresponding described first second electrode array;
One the second electrode lay with this first electrode layer overlaid, and has many second first electrode arrays that distribute and the second second electrode array on second direction; Wherein, each described second first electrode array and the described second second electrode array have a plurality of described second direction electrodes respectively, and this second direction and this first direction are staggered; And
Dielectric layer is located between this first electrode layer and this second electrode lay.
2. capacitive touch control plate as claimed in claim 1, wherein said first first electrode array and the described first second electrode array are positioned at same row or same row on this first direction.
3. capacitive touch control plate as claimed in claim 2, wherein this first electrode layer includes many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays, the adjacent described first first electrode array has the described first direction electrode of different quantity, makes gap between described many first first electrode arrays and described many first second electrode arrays be that sawtooth distributes and oblique line distributes one of them.
4. capacitive touch control plate as claimed in claim 2, wherein this first electrode layer includes many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays, and the adjacent described first first electrode array has this first direction electrode of equal number.
5. capacitive touch control plate as claimed in claim 2 also comprises one first connection gasket and one second connection gasket and is arranged at outside this first electrode layer, and the wherein said first first electrode array extends a lead by one first end of this first electrode layer and this first connection gasket couples; The described first second electrode array extends a lead by one second end of this first electrode layer and this second connection gasket couples.
6. capacitive touch control plate as claimed in claim 2, also comprising one first connection gasket is arranged at outside this first electrode layer, the wherein said first first electrode array couples with the described first second electrode array outside this first electrode layer by a lead, and this lead also is coupled to this first connection gasket.
7. capacitive touch control plate as claimed in claim 2, the described a plurality of second direction electrode series connection of wherein adjacent part form one second first electrode array, many the described a plurality of second direction electrodes of adjacent part are then connected and are formed one second second electrode array in addition, wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay, and described second first electrode array and the synchronous group's input of accepting of the described second second electrode array.
8. capacitive touch control plate as claimed in claim 7, wherein this second electrode lay includes many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays, the adjacent described second first electrode array has this second direction electrode of different quantity, makes gap between described many second first electrode arrays and described many second second electrode arrays be that sawtooth distributes and oblique line distributes one of them.
9. capacitive touch control plate as claimed in claim 7, wherein this second electrode lay includes many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays, and the adjacent described second first electrode array has the described second direction electrode of equal number.
10. capacitive touch control plate as claimed in claim 7, also comprise one the 3rd connection gasket and one the 4th connection gasket is arranged at outside this second electrode lay, the wherein said second first electrode array extends a lead by one first end of this second electrode lay and the 3rd connection gasket couples; The described second second electrode array extends a lead by one second end of this second electrode lay and the 4th connection gasket couples.
11. capacitive touch control plate as claimed in claim 7, also comprising one the 3rd connection gasket is arranged at outside this second electrode lay, the wherein said second first electrode array couples with the described second second electrode array outside this second electrode lay by a lead, and this lead also is coupled to the 3rd connection gasket.
12. capacitive touch control plate as claimed in claim 1, wherein said first first electrode array and the described first second electrode array are arranged in parallel in this first electrode layer.
13. capacitive touch control plate as claimed in claim 12, wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay, and described second first electrode array and the described second second electrode array are accepted group's input synchronously, wherein when the described second first electrode array and the described second second electrode array were arranged in parallel, it is non-conterminous that the adjacent described second first electrode array is distinguished the corresponding described second second electrode array.
14. capacitive touch control plate as claimed in claim 13, wherein said second first electrode array and the described second second electrode array are arranged in parallel in this second electrode lay.
15. a method of making capacitive touch control plate comprises the following step:
Form one first electrode layer, it has many first first electrode arrays that distribute and the first second electrode array on a first direction, makes each this first first electrode array and this first second electrode array have a plurality of first direction electrodes respectively; Wherein said first first electrode array and the described first second electrode array form notconnect state in this first electrode layer;
Form a second electrode lay and this first electrode layer overlaid, make it have many second first electrode array and the second second electrode arrays that are provided with along this second direction; Wherein, make each described second first electrode array and the described second second electrode array have a plurality of these second direction electrodes respectively, this second direction and this first direction are staggered;
Described first first electrode array and the described first second electrode array are carried out synchronous group's input, wherein when the described first second electrode array of be arranged in parallel many described first first electrode arrays and many, it is non-conterminous to make the adjacent described first first electrode array distinguish the corresponding described first second electrode array; And
Form dielectric layer, it is located between this first electrode layer and this second electrode lay.
16. manufacture method as claimed in claim 15, wherein this first electrode layer formation step comprises:
Make described first first electrode array and the described first second electrode array on this first direction, be positioned at same row or same row.
17. manufacture method as claimed in claim 16, wherein this first electrode layer formation step comprises:
Form many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays; And
The described first direction electrode that makes the adjacent described first first electrode array have different quantity; Gap between wherein said many first first electrode arrays and described many first second electrode arrays is the sawtooth distribution and oblique line distributes one of them.
18. manufacture method as claimed in claim 16 also comprises the following step:
Forming one first connection gasket and one second connection gasket is arranged at outside this first electrode layer;
Extend a lead by one first end of this first electrode layer and couple the described first first electrode array and this first connection gasket; And
Extend a lead by one second end of this first electrode layer and couple the described first second electrode array and this second connection gasket.
19. manufacture method as claimed in claim 16 also comprises the following step:
Forming one first connection gasket is arranged at outside this first electrode layer;
Outside this first electrode layer, couple described first first electrode array and the described first second electrode array by a lead; And
Couple this lead in this first connection gasket.
20. manufacture method as claimed in claim 16, wherein this second electrode lay formation step comprises:
The described a plurality of second direction electrodes of the adjacent part of connecting form one second first electrode array;
The described a plurality of second direction electrodes of other adjacent parts of connecting form one second second electrode array; Wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay; And
Described second first electrode array and the described second second electrode array are carried out synchronous group's input.
21. manufacture method as claimed in claim 20, wherein this second electrode lay formation step comprises:
Form many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays; And
This second direction electrode that makes the adjacent described second first electrode array have different quantity; Gap between wherein said many second first electrode arrays and described many second second electrode arrays is the sawtooth distribution and oblique line distributes one of them.
22, manufacture method as claimed in claim 20 also comprises the following step:
One the 3rd connection gasket and one the 4th connection gasket are set outside this second electrode lay;
Extend a lead by one first end of this second electrode lay and couple described second first electrode array and the 3rd connection gasket; And
Extend a lead by one second end of this second electrode lay and couple described second second electrode array and the 4th connection gasket.
23. manufacture method as claimed in claim 20 also comprises the following step:
Forming one the 3rd connection gasket is arranged at outside this second electrode lay;
Outside this second electrode lay, couple described second first electrode array and the described second second electrode array by a lead; And
Couple this lead in the 3rd connection gasket.
24. manufacture method as claimed in claim 15, wherein this first electrode layer formation step comprises be arranged in parallel described first first electrode array and the described first second electrode array.
25. manufacture method as claimed in claim 24 also comprises: when many adjacent described first first electrode arrays detect signal simultaneously, decision signal is produced by adjacent described many first first electrode arrays.
26. manufacture method as claimed in claim 24, wherein this second electrode lay is provided with step and comprises:
Make described second first electrode array and the described second second electrode array in this second electrode lay, form notconnect state; And
Described second first electrode array and the described second second electrode array are carried out synchronous group's input, wherein when the described second second electrode array of be arranged in parallel many described second first electrode arrays and many, it is non-conterminous to make the adjacent described second first electrode array distinguish the corresponding described second second electrode array.
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