CN202351842U - Projected capacitive touch panel capable of improving response speed - Google Patents
Projected capacitive touch panel capable of improving response speed Download PDFInfo
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- CN202351842U CN202351842U CN2011203844865U CN201120384486U CN202351842U CN 202351842 U CN202351842 U CN 202351842U CN 2011203844865 U CN2011203844865 U CN 2011203844865U CN 201120384486 U CN201120384486 U CN 201120384486U CN 202351842 U CN202351842 U CN 202351842U
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Abstract
The utility model discloses a projected capacitive touch panel capable of improving a response speed. The projected capacitive touch panel is mainly characterized in that the surface of a substrate is provided with a plurality of first and second electrode arrays which are parallel and arranged alternately; each first electrode array and second electrode array are respectively formed by connecting a plurality of first inductive electrodes and second inductive electrodes in series; adjacent first and second inductive electrodes form an inductive capacitor; in addition, the first and second electrode arrays respectively have a first end and a second end; the area of each first inductive electrode on each first electrode array is decreased from the first end to the second end; the area of each second inductive electrode on each second electrode array is decreased from the second end to the first end; and moreover, each first and second electrode array are connected with more than one adjacent first and second electrode arrays at one ends, so that a capacitance value between adjacent inductive electrodes on the edge of the substrate is increased, and the response speed is improved.
Description
Technical field
The utility model relates to a kind of projecting type capacitor contact panel, refers to a kind of projecting type capacitor contact panel that improves reaction velocity especially.
Background technology
As shown in Figure 4; It is a kind of synoptic diagram of known projection-type contact panel; Mainly be on substrate 70, to be arranged with a plurality of X axial electrode strings 71 and a plurality of Y axial electrode string 72, this X axial electrode string 71 is arranged in parallel in X-direction, and the one of which end is arranged with a lead 710; Be connected on the at one end set connecting interface (not shown) of substrate 70 along substrate 70 edges, each X axial electrode string 71 is composed in series through a junction spare 712 by a plurality of X axial electrodes 711 respectively simultaneously; This Y axial electrode string 72 is arranged in parallel in Y direction; And intersect vertically with aforementioned each X axial electrode string 71 respectively; Y axial electrode string 72 1 ends are arranged with a lead 720 simultaneously; And be connected on the connecting interface of substrate 70 1 ends along substrate 70 edges, and each Y axial electrode string 72 is composed in series by a plurality of Y axial electrodes 721, interconnects with a junction spare 722 respectively between the adjacent Y axial electrode 721; When aforementioned X axial electrode string 71 and Y axial electrode string 72 are formed on the same one side of substrate 70 simultaneously; On the X axial electrode string 71 link 712 of 711 of each adjacent X axial electrodes will and Y axial electrode string 72 on the link 722 of 721 of each adjacent Y axial electrodes overlap, for avoiding short circuit, must be at aforementioned link 712, be formed with a separation layer 713 (as shown in Figure 5) between 722 respectively.
Can know by above-mentioned structure; The projecting type capacitor contact panel is arranged in matrix by a plurality of X axial electrodes 711 with Y axial electrode 721; And form inductance capacitance at adjacent X axial electrode 711,721 of Y axial electrodes, in case there is finger to touch on it, with the capacitance that changes this place; Its signal sees through corresponding lead 710,720 and delivers to a controller through connecting interface, to analyze the position that the identification finger touches.
Although the projecting type capacitor contact panel is supported the multi-point touch function, extensively used in high-end product (for example intelligent mobile phone) field, yet still there are problems in this projecting type capacitor contact panel, still to be overcome:
1. the touch-control sensitivity of face plate edge is not good: as noted earlier; Existing projecting type capacitor contact panel is arranged in matrix by the X axial electrode 711 of a plurality of serial connections with a plurality of Y axial electrodes 721 that are connected in series; Except adjacent X axial electrode 711 and Y axial electrode 721 form the inductance capacitance; Each X axial electrode 711 or Y axial electrode 721 itself possess impedance, will produce adding up of impedance after connecting through link 712,722 again, and be more little near X axial electrode 711,721 its impedances of Y axial electrode of lead 710,720 more; X axial electrode 711,721 its impedances of Y axial electrode that distance of wire 710,720 is far away more are big more; These are positioned at the long-range relatively X axial electrode 711 of lead 710,720, the marginal position that Y axial electrode 721 also is positioned at contact panel, and under the influence of aforementioned impedance incremental effect, the touch-control sensitivity of face plate edge is undesirable relatively; Under this situation, also influence the possibility of projecting type capacitor contact panel enlarged in size.
2. reaction velocity is relatively poor: effect makes that also the X, 711,721 reactions of Y axial electrode that are positioned at marginal position are slack-off because above-mentioned impedance is successively decreased, thereby influences the efficient that controller reads operational data.
3. manufacture craft is comparatively complicated: when the projecting type capacitor contact panel is on the same surface of a substrate 70, to form X axial electrode string 71 and Y axial electrode string 72 simultaneously; Isolate each other with each link 722 of Y axial electrode string 72 for making each link 712 on the X axial electrode string 71; The steps that on manufacture craft, must how to isolate together; For example forming transparency electrode (ITO) on the substrate 70 and after forming X axial electrode string 71 after the etching; Must on the relative position of each link 712 on the X axial electrode string 71, form a separation layer 713 respectively; The link 722 of Y axial electrode string 72 that begins further to form, so as to make link 722 unlikely with link 712 short circuits.And above-mentioned isolation step makes the contact panel manufacture craft seem complicated.
From the above, still there is foregoing problems in existing projecting type capacitor contact panel, still treats further self-criticism, and seeks feasible solution.
The utility model content
Therefore the utility model fundamental purpose is providing a kind of projecting type capacitor contact panel; See through the locational induction electrode area of adjustment substrate edges; And the capacitance between the adjacent induction electrode of expansion marginal position; So as to the impedance and the capacitance of ad-hoc location on the adjusting contact panel, and then improve the reaction velocity of contact panel and the possibility of enlarged in size.
Provide a kind of projecting type capacitor contact panel that improves reaction velocity for reaching the technological means that aforementioned purpose takes, comprising:
One substrate has a surface;
A plurality of first electrode arrays, the surface that is formed on aforesaid base plate also is arranged in parallel, and each first electrode array is formed by a plurality of first induction electrode serial connections respectively, and each first induction electrode is long and narrow; In addition, first electrode array has one first end and one second end respectively, and area of each first induction electrode is successively decreased to second end by first end on it; Moreover aforementioned first electrode array is a unit with several respectively, makes several first adjacent electrode arrays connect altogether with first end;
A plurality of second electrode arrays are formed on the surface of aforesaid base plate and do parallelly and alternately with each first electrode array, and each second electrode array is formed by a plurality of second induction electrode serial connections respectively, and each second induction electrode is long and narrow; In addition, second electrode array has one first end and one second end respectively, and area of each second induction electrode is successively decreased to first end by second end on it; Moreover aforementioned second electrode array is a unit with several respectively, makes several second adjacent electrode arrays connect altogether with second end.
Further, an end of this substrate is provided with a connecting interface;
Be respectively equipped with a lead on first end of each first electrode array, make each first electrode array again and more than one the first adjacent electrode array connect altogether with its lead, be connected to the connecting interface of substrate one end more respectively;
Be respectively equipped with a lead on second end of each second electrode array, make each second electrode array again and more than one the second adjacent electrode array connect altogether with its lead, be connected to the connecting interface of substrate one end more respectively.
Further, each first induction electrode of this first electrode array has a length and a width respectively, and wherein the length perseverance is greater than width; Each second induction electrode of this second electrode array also has a length and a width respectively, and its length is also permanent in width.
Further, this first electrode array makes the length of each first induction electrode constant, and makes width successively decrease; This second electrode array also makes the length of each second induction electrode constant, but its width that successively decreases.
With aforesaid projecting type capacitor contact panel; Each first induction electrode on first electrode array respectively with second electrode array on the second adjacent induction electrode constitute a coupling capacitance; And first, second electrode array is that unit at one end connects respectively altogether with several; Promptly produce coupling capacitance parallel connection thus and improve the effect of capacitance,, can improve reaction velocity because capacitance becomes big;
In addition; The area of each first induction electrode is successively decreased to second end by first end on first electrode array, and the area of each second induction electrode is then successively decreased to first end by second end in the opposite direction on second electrode array, the impedance of each induction electrode on the same electrode array of scalable whereby; Its area that successively decreases in the opposite direction of first, second induction electrode on first, second electrode array in addition; Therefore the induction electrode that increases progressively area will be adjacent with the induction electrode of the area that successively decreases, and enlarge the departure of each adjacent induction electrode RC value, be beneficial to the identification correction; And promote touch-control sensitivity, and then help to enlarge the contact panel size.
Moreover; First, second induction electrode on first, second electrode array still is arranged; First, second electrode array of thought is done alternately parallel, and thus, there is not the overlapping part fully in first, second electrode array; Promptly in manufacture craft, can save the step that forms separation layer for one, so help to simplify manufacture craft.
Description of drawings
Fig. 1 is the planimetric map of the utility model one preferred embodiment.
Fig. 2 is a partial enlarged drawing of the utility model one preferred embodiment.
Fig. 3 is the another partial enlarged drawing of the utility model one preferred embodiment.
Fig. 4 is the floor map of existing projecting type capacitor contact panel.
Fig. 5 is the partial sectional view of existing projecting type capacitor contact panel.
The primary clustering symbol description
10,10 ' first electrode array 11,11 ' first induction electrode
12,22 leads
20 second electrode arrays 21,21 ' second induction electrode
100 substrates, 101 connecting interfaces
70 substrate 71X axial electrode strings
710 lead 711X axial electrodes
712 links, 713 separation layers
72Y axial electrode string 720 leads
721Y axial electrode 722 links.
Embodiment
Preferred embodiment about the utility model; See also shown in Figure 1; Main a plurality of first electrode arrays 10 and a plurality of second electrode array 20 of on a surface of a substrate 100, being formed with respectively, an end of substrate 100 is provided with a connecting interface 101 simultaneously, supplies to be connected with the controller outside (not shown); Wherein:
Each first electrode array 10 is arranged in parallel on the surface of aforesaid base plate 100, and in the present embodiment, each first electrode array 10 upwards is arranged in parallel in horizontal (level); Each first electrode array 10 is formed by a plurality of first induction electrode, 11,11 ' serial connections respectively in addition, and this first induction electrode 11,11 ' is long and narrow, and its length perseverance is greater than width; And first electrode array 10 has one first end and one second end respectively; In the present embodiment, first end refers to the left end of direction as shown, and second end then refers to the right-hand member of direction as shown; And be arranged with a lead 12 on first end of each first electrode array 10; And several first adjacent electrode arrays 10 connect (as shown in Figure 2) altogether with its lead 12, shown in accompanying drawing, are unit with five first electrode arrays 10; Make per five first adjacent electrode arrays 10 connect altogether, be connected to connecting interface 101 after connecing altogether again with the lead on first end 12;
Moreover the area of each first induction electrode 11,11 ' is successively decreased to second end by first end on each first electrode array 10; Its areas of first induction electrode 11 that are positioned on first end are maximum, are positioned at the second induction electrode 11 ' area minimum (as shown in Figure 3) then on second end, in present embodiment; The mode of its area that successively decreases makes each first induction electrode 11; 11 ' length is constant, and makes width successively decrease, so each first induction electrode 11 of each first electrode array 10 is directly upwards aligning respectively.
Still see also Fig. 1, shown in Figure 2, each second electrode array 20 is arranged in parallel on the surface of aforesaid base plate 100, and parallel with each first electrode array 10 and respectively; Each second electrode array 20 is formed by a plurality of second induction electrode, 21,21 ' serial connections respectively, and identical with aforementioned first induction electrode 11,11 ', these second induction electrodes 21,21 ' are long and narrow, and its length perseverance is greater than width; In addition; Second electrode array 20 has one first end and one second end respectively, and first end still refers to the left end of direction as shown, and second end then refers to the right-hand member of direction as shown; And be arranged with a lead 22 on second end of each first electrode array 20; And several second adjacent electrode arrays 20 connect (as shown in Figure 3) altogether with its lead 22, shown in accompanying drawing, are unit with five second electrode arrays 20 still; Make per five second adjacent electrode arrays 20 connect altogether, and be connected to connecting interface 101 again after connecing altogether with the lead on second end 22;
Simultaneously, the area of each second induction electrode 21,21 ' is successively decreased to first end by second end on second electrode array 20; Its areas of first induction electrode 21 that are positioned on second end are maximum, and for example shown in Figure 2, and then area is minimum to be positioned at second induction electrode 21 ' on first end; In present embodiment, the mode of its area that successively decreases makes the width of each second induction electrode 21,21 ' constant; And order is highly successively decreased, so each second induction electrode 21,21 ' of each second electrode array 20 is directly upwards aligning respectively; And be aligned with each first induction electrode 11 ', 11 of first electrode array 10 respectively, i.e. first induction electrode 11 '; 11 and second induction electrode 21,21 ' is arranged.
From the above, each first induction electrode 11,11 ' makes progress corresponding to each second induction electrode 21 ' of second electrode array 20 straight respectively on first electrode array 10; 21; First, second adjacent induction electrode 11,11 ', 21 ', 21 constitute a coupling capacitance respectively; And the utility model makes adjacent a plurality of first, second electrode arrays 10,20 connect altogether with the lead 12,22 of an end respectively; In the case; With making first, second electrode array 10,20 that connects altogether respectively at its adjacent first, second induction electrode 11,11 ', 21 ', 21 formed coupling capacitances produce the effect of electric capacity parallel connection; And the result of electric capacity parallel connection makes capacitance become big, thereby can improve reaction velocity.Because each first induction electrode 11 on aforementioned first electrode array 10; 11 ' area is to be successively decreased to second end by first end, and the area of each second induction electrode 21,21 ' is then successively decreased to first end by second end in the opposite direction on second electrode array 20; And the lead 12 on aforementioned several adjacent first electrode array, 10 first ends connects altogether; 20 of several adjacent second electrode arrays connect with the lead on second end 22 altogether, and several induced electricities of first, second electrode array 10,20 contiguous joints extremely area is maximum, see through aforementioned electric capacity parallel connection effect; Can make to be positioned at the coupling capacitance of locating between adjacent induction electrode at substrate 10 two ends and to become big, thereby can improve reaction velocity.
When reading of data; The controller (not shown) that is connected with connectivity port 101 is the X axle with looking first electrode array 10 respectively; Look second electrode array 20 and be the Y axle, see also shown in Figure 1, if the finger position contacting is on the right side of substrate 10; On the Y axle is judged, can directly read the capacitance variation (coupling capacitance of touching the place because of finger is big) of second electrode array 20, the X axle is then judged to scan the lead 12 that first electrode array 10 connects altogether; Otherwise if the finger position contacting can directly read the capacitance variation of first electrode array 10 in the left side of substrate 10 on the X axle is judged, the Y axle is then judged to scan the lead 22 that second electrode array 20 connects altogether.
As first electrode array 10, second electrode array 20 as aforementioned enforcement; With five is that unit connects five first, second adjacent electrode arrays 10,20 altogether; Its result will form a plurality of by 5x5 the induction zone that induction electrode constituted in the position near first end and second end respectively, and this induction zone size is being principle (for example less than 8mm) less than hand point area.
The utility model also has the effect of regulating impedance except that utilizing aforementioned techniques can improve the reaction velocity:
Because first, second electrode array 10,20 is formed by a plurality of first, second induction electrode 11,11 ', 21,21 ' serial connections respectively; When the serial connection number of first, second induction electrode 11,11 ', 21,21 ' many more; Being equal to many more resistance (induction electrode has internal resistance) is connected in series mutually; Thereby will make first, second induction electrode 11,11 ', 21 of first, second electrode array 10,20 ends, it is big that 21 ' impedance becomes; And the utility model makes first, second induction electrode 11,11 ', 21,21 ' be respectively long and narrow, can reduce the induction electrode number of serial connection, thereby can reduce impedance; Because of the induction electrode area is more little, its impedance is more little again, and the utility model makes first, second induction electrode 11,11 ', 21 on first, second electrode array 10,20; 21 ' area successively decreases in the opposite direction, whereby each first, second induction electrode 11,11 ', 21 on scalable first electrode array 10, second electrode array 20; 21 ' impedance, on the other hand, first, second induction electrode 11 on first, second electrode array 10,20; 11 ', 21,21 ' its area that successively decreases in the opposite direction, the induction electrode of the area that therefore successively decreases will be adjacent with the induction electrode that increases progressively area; Concrete effect is to be positioned in first, second induction electrode 11,11 ', 21,21 ' at substrate 100 two ends (face plate edge); The induction electrode 11,21 of maximum area is adjacent with the induction electrode 11 ', 21 ' of minimum area, in the case, and adjacent first, second induction electrode 11 on substrate 100 two ends; The maximum deviation amount will appear in 11 ', 21,21 ' RC value, because departure is big; Its signal detects easily, and adjusts correction easily, therefore can solve the not good problem of touch-control sensitivity at contact panel edge; And the problems referred to above had both achieved a solution, and then can be beneficial to the size that enlarges the projection-type contact panel.
Moreover, first, second induction electrode 11,11 ', 21 on first, second electrode array 10,20; 21 ' still is arranged, but that first, second electrode array 10,20 is done is alternately parallel, under this situation; There is not the overlapping part fully in first, second electrode array 10,20, has not both had the overlapping part, promptly need not implement to isolate; Therefore can in manufacture craft, save and form the step of separation layer one, thereby help to simplify manufacture craft.
Claims (4)
1. the projecting type capacitor contact panel that can improve reaction velocity is characterized in that, comprising:
One substrate has a surface;
A plurality of first electrode arrays, the surface that is formed in aforesaid base plate also is arranged in parallel, and each first electrode array is formed by a plurality of first induction electrodes serial connections respectively, and each first induction electrode is long and narrow; In addition, first electrode array has one first end and one second end respectively, and area of each first induction electrode is successively decreased to second end by first end on it; Moreover aforementioned first electrode array is a unit with several respectively, makes several first adjacent electrode arrays connect altogether with first end;
A plurality of second electrode arrays are formed in the surface of aforesaid base plate and do parallelly and alternately with each first electrode array, and each second electrode array is formed by a plurality of second induction electrode serial connections respectively, and each second induction electrode is long and narrow; In addition, second electrode array has one first end and one second end respectively, and area of each second induction electrode is successively decreased to first end by second end on it; Moreover aforementioned second electrode array is a unit with several respectively, makes several second adjacent electrode arrays connect altogether with second end.
2. the projecting type capacitor contact panel that improves reaction velocity according to claim 1 is characterized in that an end of this substrate is provided with a connecting interface;
Be respectively equipped with a lead on first end of each first electrode array, make each first electrode array again and more than one the first adjacent electrode array connect altogether with its lead, be connected to the connecting interface of substrate one end more respectively;
Be respectively equipped with a lead on second end of each second electrode array, make each second electrode array again and more than one the second adjacent electrode array connect altogether with its lead, be connected to the connecting interface of substrate one end more respectively.
3. the projecting type capacitor contact panel that improves reaction velocity according to claim 2 is characterized in that, each first induction electrode of this first electrode array has a length and a width respectively, and wherein the length perseverance is greater than width; Each second induction electrode of this second electrode array also has a length and a width respectively, and its length is also permanent in width.
4. the projecting type capacitor contact panel that improves reaction velocity according to claim 3 is characterized in that this first electrode array makes the length of each first induction electrode constant, and makes width successively decrease; This second electrode array also makes the length of each second induction electrode constant, but its width that successively decreases.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203844865U CN202351842U (en) | 2011-10-11 | 2011-10-11 | Projected capacitive touch panel capable of improving response speed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203844865U CN202351842U (en) | 2011-10-11 | 2011-10-11 | Projected capacitive touch panel capable of improving response speed |
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| CN202351842U true CN202351842U (en) | 2012-07-25 |
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| CN2011203844865U Expired - Fee Related CN202351842U (en) | 2011-10-11 | 2011-10-11 | Projected capacitive touch panel capable of improving response speed |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761016A (en) * | 2013-12-31 | 2014-04-30 | 深圳市华星光电技术有限公司 | Mutual capacitance type touch panel and liquid crystal display device |
| CN104049817A (en) * | 2013-03-15 | 2014-09-17 | 北京京东方光电科技有限公司 | Capacitive touch panel and touch display device |
| US20140267956A1 (en) * | 2013-03-15 | 2014-09-18 | Beijing Boe Optoelectronics Technology Co., Ltd. | Capacitive touch panel and touch display apparatus |
| CN109409166A (en) * | 2017-08-16 | 2019-03-01 | 奕力科技股份有限公司 | Sensor with and preparation method thereof |
-
2011
- 2011-10-11 CN CN2011203844865U patent/CN202351842U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049817A (en) * | 2013-03-15 | 2014-09-17 | 北京京东方光电科技有限公司 | Capacitive touch panel and touch display device |
| WO2014139213A1 (en) * | 2013-03-15 | 2014-09-18 | 北京京东方光电科技有限公司 | Capacitive touch panel and touch display device |
| US20140267956A1 (en) * | 2013-03-15 | 2014-09-18 | Beijing Boe Optoelectronics Technology Co., Ltd. | Capacitive touch panel and touch display apparatus |
| US9557866B2 (en) * | 2013-03-15 | 2017-01-31 | Beijing Boe Optoelectronics Technology Co., Ltd. | Capacitive touch panel and touch display apparatus |
| CN104049817B (en) * | 2013-03-15 | 2017-09-29 | 北京京东方光电科技有限公司 | A kind of capacitance type touch-control panel and touch control display device |
| CN103761016A (en) * | 2013-12-31 | 2014-04-30 | 深圳市华星光电技术有限公司 | Mutual capacitance type touch panel and liquid crystal display device |
| CN103761016B (en) * | 2013-12-31 | 2017-04-26 | 深圳市华星光电技术有限公司 | Mutual capacitance type touch panel and liquid crystal display device |
| CN109409166A (en) * | 2017-08-16 | 2019-03-01 | 奕力科技股份有限公司 | Sensor with and preparation method thereof |
| CN109409166B (en) * | 2017-08-16 | 2021-05-04 | 奕力科技(开曼)股份有限公司 | Sensor and manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |