CN201859425U - Capacitive touch-sensitive electrode area and CTS applying same - Google Patents
Capacitive touch-sensitive electrode area and CTS applying same Download PDFInfo
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- CN201859425U CN201859425U CN2010202368142U CN201020236814U CN201859425U CN 201859425 U CN201859425 U CN 201859425U CN 2010202368142 U CN2010202368142 U CN 2010202368142U CN 201020236814 U CN201020236814 U CN 201020236814U CN 201859425 U CN201859425 U CN 201859425U
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Abstract
The utility model provides a capacitive touch-sensitive electrode area, which comprises a plurality of first axial sensing electrode groups and a plurality of second axial sensing electrode groups, wherein each first axial sensing electrode group comprises a plurality of first axial sensing electrode units; each second axial sensing electrode group comprises a plurality of second axial sensing electrode units; and each first axial sensing electrode unit and each second axial sensing electrode unit are octagonal patterns. The utility model further provides a CTS (Capacitive Touch Screen) applying the capacitive touch-sensitive electrode area. The capacitive touch-sensitive electrode area and the CTS applying the same have the advantage of better sensitivity.
Description
Technical field
The utility model relates to a kind of capacitance touch induced electricity polar region, and the capacitive touch screen of using this capacitance touch induced electricity polar region.
Background technology
Touch-screen is a kind of touch sensing input media that is widely used now.Press the touch sensible principle, the prior art touch-screen comprises resistive touch screen, capacitive touch screen, surperficial infrared touch panel or the like.Wherein, resistive touch screen because its low cost, easily realize, control is simple etc., and advantage is for many years popular.Recently, capacitive touch screen with its transmittance height, wear-resistant, anti-variation of ambient temperature, anti-ambient humidity change, the life-span is long, can realize being welcomed by the general public as the Premium Features of multiple point touching.
For capacitive touch screen is effectively worked, need a transparent capacitance sensing district.When human body or as the special-purpose touching device of writing pencil during near the induction electrode of electric capacity, can change the size of the detected capacitance of sensing control circuit, according to the distribution of capacitance variation in the touch area, just can judge human body or the special-purpose touching device touch situation in the touch area.Press the mode that electric capacity forms, the prior art touch-screen comprises self-capacitance formula touch-screen and mutual capacitance type touch-screen.Self-capacitance formula touch-screen is to utilize sensing electrode and the signal of the variation that exchanges the capacitance that ground or DC level electrode form as touch sensing; Mutual capacitance touchscreens is to utilize the signal of the variation of the capacitance that forms between two electrodes as touch sensing, also mutual capacitance is called projected capacitive sometimes.
Seeing also Fig. 1, is the part plan synoptic diagram of a kind of prior art capacitance touch induced electricity polar region.This capacitance touch induced electricity polar region 10 comprises a substrate 11, a plurality of first axial induction electrode group 13 and a plurality of second axial induction electrode group 15.Each this first axial induction electrode 13 is made up of a plurality of first axial induction electrode units 131, each second axial induction electrode 15 is made up of a plurality of second axial induction electrode units 151, and this first axial induction electrode unit 131 and this second axial induction electrode unit 151 are diamond structure.
The problem that such capacitance touch induced electricity polar region pattern structure exists is that its product sensitivity is relatively poor.Because the pattern structure of this first axial induction electrode unit 131 and this second axial induction electrode unit 151 is rhombus, under the self-capacitance pattern, the equivalent resistance of this first axial induction electrode unit 131 and this second axial induction electrode unit 151 is bigger, under mutual capacitance mode, the resistance of this first axial induction electrode group 13 or this second axial induction electrode unit group 15 is bigger.Can learn that by passive RC network it by frequency is
According to its principle, for its capacitive touch screen, because frequency of operation at high frequency, needs cutoff frequency high more good more, can obtain higher cutoff frequency by lowering resistance, and these capacitance touch induced electricity polar region 10 designs in the prior art have obviously reduced its sensitivity.
The utility model content
At the relatively poor problem of prior art capacitance touch induced electricity polar region sensitivity, the utility model provides a kind of sensitivity capacitance touch induced electricity polar region preferably.
The utility model also provides the capacitive touch screen of this capacitance touch induced electricity polar region of a kind of application.
A kind of capacitance touch induced electricity polar region, it comprises a plurality of first axial induction electrode groups and a plurality of second axial induction electrode group, this first axial induction electrode group is made up of a plurality of first axial induction electrode units, this second axial induction electrode group is made up of a plurality of second axial induction electrode units, and this first axial induction electrode unit is the octagon pattern with this second axial induction electrode unit.
As the further improvement of this capacitance touch induced electricity polar region, this first axial induction electrode group is vertical with this second axial induction electrode group, forms array structure.
As the further improvement of this capacitance touch induced electricity polar region, this first axial induction electrode unit axially equidistantly is provided with at interval with first, and this second axial induction electrode unit axially equidistantly is provided with at interval with second.
As the further improvement of this capacitance touch induced electricity polar region, this first axial induction electrode unit and this second axial induction electrode unit are arranged on same substrate.
As the further improvement of this capacitance touch induced electricity polar region, this first axial induction electrode unit and this second axial induction electrode unit are arranged on different substrate.
As the further improvement of this capacitance touch induced electricity polar region, be connected by first axial lead between this first axial induction electrode unit.
As the further improvement of this capacitance touch induced electricity polar region, be connected by second axial lead between this second axial induction electrode unit.
A kind of capacitive touch screen, it comprises capacitance touch induced electricity polar region, this capacitance touch induced electricity polar region comprises a plurality of first axial induction electrode groups and a plurality of second axial induction electrode group, the first axial induction electrode group is made up of a plurality of first axial induction electrode units, the second axial induction electrode group is made up of a plurality of second axial induction electrode units, and this first axial induction electrode unit is the octagon pattern with this second axial induction electrode unit.
Capacitance touch induced electricity polar region of the present utility model and using in the capacitive touch screen of this capacitance touch induced electricity polar region, its induction electrode unit is the octagon pattern, under the self-capacitance pattern, reduce the equivalent resistance of induction electrode unit, under mutual capacitance mode, reduce the resistance of induction electrode group effectively, therefore effectively improve cutoff frequency, improved the sensitivity of product.
In sum, capacitance touch induced electricity polar region of the present utility model and the capacitive touch screen of using this capacitance touch induced electricity polar region have product sensitivity advantage preferably.
Description of drawings
Fig. 1 is the part plan synoptic diagram of a kind of prior art capacitance touch induced electricity polar region.
Fig. 2 is the planar structure synoptic diagram of the utility model capacitance touch induced electricity polar region one better embodiment.
Fig. 3 is the partial enlarged drawing of capacitance touch induced electricity shown in Figure 2 polar region.
Embodiment
Below in conjunction with accompanying drawing the utility model capacitance touch induced electricity polar region and capacitive touch screen are described.
Seeing also Fig. 2, is the planar structure synoptic diagram of the utility model capacitance touch induced electricity polar region one better embodiment.This capacitance touch induction zone 20 is applied in (figure does not show) in the capacitive touch screen, it comprises a substrate 21, a plurality of first axial induction electrode group 23 and a plurality of second axial induction electrode group 25, and this first axial induction electrode group 23 is perpendicular to this second axial induction electrode group 25.
This substrate 21 can be a glass substrate, and it is as the support plate of this first axial induction electrode group 23 of carrying and this second axial induction electrode group 25, its good in optical property.
This first axial induction electrode group 23 comprises a plurality of these first axial induction electrode units 231, these a plurality of first axial induction electrode units 231 are with first surface that axially equidistantly is disposed on this substrate 21, and between the first adjacent axial induction electrode group 23 and the zone definitions between two the first adjacent axial induction electrode units 231 go out this second axial induction electrode unit configuring area 27.
This second axial induction electrode group 25 comprises a plurality of these second axial induction electrode units 251, these a plurality of second axial induction electrode units 251 are with the second axial surface that equidistantly is disposed on this substrate 21, and each second axial induction electrode unit 251 is configured in this second axial induction electrode unit configuring area 27 respectively.
Please consulting Fig. 3 again, is the partial enlarged drawing of capacitance touch induced electricity shown in Figure 2 polar region 20.The pattern of this first axial induction electrode unit 231 is an eight-sided formation, and it can form identical corner cut gained by four corners of square induction electrode.These a plurality of first adjacent axial induction electrode units 231 are connected by first axial lead 28, so that each interior on the same group first axial induction electrode unit 231 is electrically connected.
Respectively be provided with the insulation coating on the surface of each this first axial lead 28.This insulation coating has electrical insulation characteristics, for example transparent insulating material.
Please continue to consult Fig. 3, the pattern of this second axial induction electrode unit 251 is similarly eight-sided formation, it can form identical corner cut gained by four corners of square induction electrode, be connected by second axial lead 29 between these a plurality of second adjacent axial induction electrode units 251, and this second axial lead 29 crossed the surface of this insulation coating, so that each interior on the same group second axial induction electrode unit 251 is electrically connected.
This first axial induction electrode unit 231, this first axial lead 28, this second axial induction electrode unit 251 and this second axial lead 29 are that transparent conductive material is made.The insulation coating that is provided with between this first axial lead 28 and this second axial lead 29, can make between each adjacent this second axial induction electrode unit in this second axial induction electrode group 25 this second axial lead 29 of 251 when crossing over this corresponding first axial lead 28, reach purpose insulated from each other.
In embodiment, this first axial induction electrode group 23 and this second axial induction electrode group 25 are arranged on same substrate, it also can be separately positioned on different substrate with this first axial induction electrode group 23 and this second axial induction electrode group 25 according to different needs.
Compared with prior art, the first axial touch sensible electrode unit 231 in this capacitance touch induced electricity polar region 20 of present embodiment, the second axial touch sensible electrode unit 251 is designed to the octagon pattern, under the self-capacitance pattern, can effectively reduce this first axial induction electrode unit 231, the equivalent resistance of this second axial induction electrode unit 251, and under mutual capacitance mode, can reduce the resistance of this first axial induction electrode group 23 or the resistance of this second axial induction electrode group 25 effectively, therefore can effectively improve cutoff frequency, the capacitive touch screen that makes this capacitance touch induced electricity polar region 20 and use this capacitance touch induced electricity polar region 20 has sensitivity preferably.
In sum, capacitance touch induced electricity of the present utility model polar region 20 and the capacitive touch screen of using this capacitance touch induced electricity polar region 20 have sensitivity advantage preferably.
Only be preferred case study on implementation of the present utility model below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. capacitance touch induced electricity polar region, it comprises a plurality of first axial induction electrode groups and a plurality of second axial induction electrode group, it is characterized in that: this first axial induction electrode group comprises a plurality of first axial induction electrode units, this second axial induction electrode group comprises a plurality of second axial induction electrode units, and this first axial induction electrode unit is the octagon pattern with this second axial induction electrode unit.
2. capacitance touch induced electricity according to claim 1 polar region is characterized in that: this first axial induction electrode group is vertical mutually with this second axial induction electrode group, and forms array structure.
3. capacitance touch induced electricity according to claim 1 polar region is characterized in that: this first axial induction electrode unit axially equidistantly is provided with at interval with first, and this second axial induction electrode unit axially equidistantly is provided with at interval with second.
4. capacitance touch induced electricity according to claim 1 polar region is characterized in that: this first axial induction electrode unit and this second axial induction electrode unit are arranged on same substrate.
5. capacitance touch induced electricity according to claim 1 polar region is characterized in that: this first axial induction electrode unit and this second axial induction electrode unit are arranged on different substrate.
6. capacitance touch induced electricity according to claim 1 polar region is characterized in that: be connected by first axial lead between this first axial induction electrode unit.
7. capacitance touch induced electricity according to claim 1 polar region is characterized in that: be connected by second axial lead between this second axial induction electrode unit.
8. capacitive touch screen, it comprises as any described capacitance touch induced electricity polar region of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202368142U CN201859425U (en) | 2010-06-24 | 2010-06-24 | Capacitive touch-sensitive electrode area and CTS applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202368142U CN201859425U (en) | 2010-06-24 | 2010-06-24 | Capacitive touch-sensitive electrode area and CTS applying same |
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| CN201859425U true CN201859425U (en) | 2011-06-08 |
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| CN2010202368142U Expired - Lifetime CN201859425U (en) | 2010-06-24 | 2010-06-24 | Capacitive touch-sensitive electrode area and CTS applying same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571059A (en) * | 2012-01-06 | 2012-07-11 | 陈建平 | Water-pouring-preventing capacitive touch button |
| CN102833389A (en) * | 2011-06-15 | 2012-12-19 | 比亚迪股份有限公司 | Mobile terminal and energy conservation method therefor |
| CN105068704A (en) * | 2015-08-25 | 2015-11-18 | 武汉精测电子技术股份有限公司 | Routing architecture of inductive indium tin oxide layer |
| CN105183255A (en) * | 2015-08-25 | 2015-12-23 | 武汉精测电子技术股份有限公司 | Wiring structure for sensing indium tin oxide layer |
-
2010
- 2010-06-24 CN CN2010202368142U patent/CN201859425U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833389A (en) * | 2011-06-15 | 2012-12-19 | 比亚迪股份有限公司 | Mobile terminal and energy conservation method therefor |
| CN102833389B (en) * | 2011-06-15 | 2015-03-04 | 比亚迪股份有限公司 | Mobile terminal and energy conservation method therefor |
| CN102571059A (en) * | 2012-01-06 | 2012-07-11 | 陈建平 | Water-pouring-preventing capacitive touch button |
| CN105068704A (en) * | 2015-08-25 | 2015-11-18 | 武汉精测电子技术股份有限公司 | Routing architecture of inductive indium tin oxide layer |
| CN105183255A (en) * | 2015-08-25 | 2015-12-23 | 武汉精测电子技术股份有限公司 | Wiring structure for sensing indium tin oxide layer |
| CN105068704B (en) * | 2015-08-25 | 2018-01-30 | 武汉精测电子技术股份有限公司 | Sense the wire structures of indium tin oxide layer |
| CN105183255B (en) * | 2015-08-25 | 2018-01-30 | 武汉精测电子技术股份有限公司 | A kind of wire structures for sensing indium tin oxide layer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |
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| CX01 | Expiry of patent term |