CN105353934A - Capacitive touch screen sensor and capacitive touch screen - Google Patents
Capacitive touch screen sensor and capacitive touch screen Download PDFInfo
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- CN105353934A CN105353934A CN201510880436.9A CN201510880436A CN105353934A CN 105353934 A CN105353934 A CN 105353934A CN 201510880436 A CN201510880436 A CN 201510880436A CN 105353934 A CN105353934 A CN 105353934A
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- touch screen
- capacitive touch
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Abstract
The invention discloses a capacitive touch screen sensor. The capacitive touch screen sensor comprises a drive electrode layer and a sensing electrode layer, wherein the drive electrode layer comprises a first substrate and a first conducting film layer arranged on the first substrate; the sensing electrode layer comprises a second substrate and a second conducting film layer arranged on the second substrate; the same surface of the first substrate is provided with a compensation drive electrode and a compensation sensing electrode; any one electrode led out from the first conducting film layer is connected with one compensation drive electrode, and one compensation drive electrode and one compensation sensing electrode form a compensation capacitor, and an output end is led out from the compensation sensing electrode. The capacitive touch screen sensor and the capacitive touch screen provided by the invention compensate capacitance for a base capacitor through the compensation capacitor, so as to reduce the probability of occurrence of lineation and drifting.
Description
Technical field
The present invention relates to capacitance-type touch screen technology field, particularly relate to a kind of capacitive touch screen functional sheet solving drift phenomenon, and use the capacitive touch screen of this functional sheet.
Background technology
Since Iphone comes out, its magnificent outward appearance, novel mode of operation and comfortable feel, capacitive touch screen obtains client's accreditation, as mobile phone, media player, navigational system, digital camera, digital album (digital photo frame), PDA, game station, display, electrical equipment control, Medical Devices etc. daily life every field all can be seen.But along with application universal of capacitive touch screen, under the guiding of personalized and trend, conventional capacitive-type touch-screen is in production and use procedure, due to ITO layer physics fragility feature, at manufacture and Long-Time Service, or environment occurs easily to sustain damage in severe change procedure, causes capacitance to change, produce line drift phenomenon.
Summary of the invention
The technical problem to be solved in the present invention is: conventional capacitive-type touch-screen is in production and use procedure, due to ITO layer physics fragility feature, at manufacture and Long-Time Service, or environment occurs easily to sustain damage in severe change procedure, cause capacitance to change, produce line drift phenomenon.
In order to overcome the above problems, technical scheme provided by the invention is: a kind of capacitive touch screen functional sheet, comprise drive electrode layer and induction electrode layer, drive electrode layer comprises the first base material and is arranged on the first conductive film layer on the first base material, induction electrode layer comprises the second base material and is arranged on the second conductive film layer on the second base material, the same face of the first base material is provided with and compensates drive electrode and complementary induction electrode, arbitrary electrode of drawing from the first conductive film layer compensates drive electrode be connected with one, a compensation drive electrode and a complementary induction electrode constitute building-out capacitor, output terminal is drawn from complementary induction electrode.
Compared with prior art, the invention has the beneficial effects as follows: the functional sheet of conventional capacitive-type touch-screen does not normally have building-out capacitor, when there is damage in conductive film layer, cause capacitance to change and produce line drift phenomenon, and the present invention is connected with IC chip circuit from complementary induction electrode extraction output terminal by flexible PCB, compensate capacitance when the capacitance that IC chip circuit recognizes functional sheet reduces, to make capacitance meet the demands, thus reduce the probability of happening of line drift.
Further, the output terminal of drawing from each complementary induction electrode is connected and forms a public output.Take this structure can reduce io interface on functional sheet.
Further, described compensation drive electrode and complementary induction electrode adopt ITO, and are formed the shape compensating drive electrode and complementary induction electrode by strong acid etching mode.Strong acid etching is carried out by ITO layer, convenient for production, reduce costs.
Further, described compensation drive electrode and complementary induction electrode are paliform, and alternately arrangement between the two.Paliform can ensure in less range of size, effectively increase the capacitance compensated between drive electrode and complementary induction electrode, thus reduces the dimensional requirement to substrate, can not change physical arrangement, meet customer requirement.
Further, described first base material and the second base material adopt PET or PC transparent organic polymer material, and the first conductive film layer and the second conductive film layer adopt ITO, IZO, Nano Silver or CNT.The conventional material taked, can choose any one kind of them.
A kind of capacitive touch screen, comprises a kind of capacitive touch screen functional sheet of above-mentioned arbitrary technical scheme.Such capacitive touch screen, can reach raising fine ratio of product to a great extent, and comparatively conventional capacitance shields long service life, and customer experience is effective, meets very much the demand that high performance-price ratio is pursued in market.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of drive electrode layer of the capacitive touch screen functional sheet in invention;
Accompanying drawing 2 is structural representations of induction electrode layer of the capacitive touch screen functional sheet in invention;
Accompanying drawing 3 is structural representations of the capacitive touch screen in the present invention.
Wherein, the 1, first base material 2, first conductive film layer 3, second base material 4, second conductive film layer 5, compensation drive electrode 6, complementary induction electrode 7, capacitive touch screen functional sheet 8, cover plate 9, flexible circuit board 10, driving chip circuit.
Embodiment
Accompanying drawing, is specifically described the specific embodiment of the present invention;
Embodiment 1 one kinds of capacitive touch screen functional sheets, comprise drive electrode layer and induction electrode layer, be bonded together by glue material by drive electrode layer and induction electrode layer, drive electrode layer comprises the first base material 1 and is arranged on the first conductive film layer 2 on the first base material 1, layout can be etched by strong acid, electric current formed electric signal is exported by drive electrode layer, as drive singal; Induction electrode layer comprises the second base material 3 and is arranged on the second conductive film layer 4 on the second base material 3, and can etch layout by strong acid, electric current formed electric signal is inputted, as induced signal by this electrode layer; More than be prior art, improvement of the present invention is, the same face of the first base material 1 is provided with and compensates drive electrode 5 and complementary induction electrode 6, arbitrary electrode of drawing from the first conductive film layer 2 compensates drive electrode 5 be connected with one, a compensation drive electrode 5 and a complementary induction electrode 6 constitute building-out capacitor, draw output terminal from complementary induction electrode 6.
In order to reduce the io interface on functional sheet, the output terminal of drawing from each complementary induction electrode 6 is connected and forms a public output.
Conveniently produce, reduce costs, described compensation drive electrode 5 and complementary induction electrode 6 adopt ITO, and are formed the shape compensating drive electrode 5 and complementary induction electrode 6 by strong acid etching mode.
More preferably, described compensation drive electrode 5 and complementary induction electrode 6 are in paliform, and alternately arrangement between the two.Paliform can ensure in less range of size, effectively increase the capacitance compensated between drive electrode and complementary induction electrode, thus the dimensional requirement reduced substrate, can not change physical arrangement, meet customer requirement, can certainly be other shapes (supplementing).
In technique scheme, described first base material 1 and the second base material 3 adopt PET or PC transparent organic polymer material, and the first conductive film layer 2 and the second conductive film layer 4 adopt ITO, IZO, Nano Silver or CNT.
Embodiment 2 one kinds of capacitive touch screens, comprise the capacitive touch screen functional sheet 7 in embodiment 1, cover plate 8, flexible circuit board 9 and driving chip circuit 10, cover plate 8 covers on capacitive touch screen functional sheet 7 by glue material, capacitive touch screen functional sheet 7 is connected with driving chip circuit 10 by flexible circuit board 9, described flexible circuit board, it is a kind of circuit board that can bend, this circuit board leads to overetched circuit and each chip and components and parts and coordinates, various specific control circuit can be realized, driving and induced signal are analyzed by control circuit, gather, conversion, carried out communicate (seemingly not having sake of clarity) with client-side interface by certain protocol mode.Described cover plate 8 can be the known various material such as tempered glass, PC, PMMA, its shape is the planar structure of the shaped form be made up of arc, namely need to make which type of shape, any shape just made by cover plate, and the shape of whole screen is determined by cover plate shape.
Principle of work: the drive electrode layer in capacitive touch screen functional sheet and induction electrode stacked adding define stray capacitance, the size of drive singal and induced signal depends on the size of this stray capacitance, based on the capacitance of this stray capacitance, data judge the position of touch-screen, when this capacitance because when defect fails to reach anticipatory data, can occur to touch drift, but compensated by building-out capacitor, anticipatory data can be reached, thus it is bad to improve touch drift, structure of the present invention can be formed and independently compensate capacitance, can be effectively separated by control circuit and special processing, final practical function application.
It is to be understood that above-mentioned embodiment has done more detailed text description to the thinking that relates to of the present invention; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of the restriction to mentality of designing of the present invention; any combination not exceeding mentality of designing of the present invention; increase or amendment, all fall within the scope of protection of the present invention.
Claims (6)
1. a capacitive touch screen functional sheet, comprise drive electrode layer and induction electrode layer, drive electrode layer comprises the first base material and is arranged on the first conductive film layer on the first base material, induction electrode layer comprises the second base material and is arranged on the second conductive film layer on the second base material, it is characterized in that, the same face of the first base material is provided with and compensates drive electrode and complementary induction electrode, arbitrary electrode of drawing from the first conductive film layer compensates drive electrode be connected with one, a compensation drive electrode and a complementary induction electrode constitute building-out capacitor, output terminal is drawn from complementary induction electrode.
2. a kind of capacitive touch screen functional sheet as claimed in claim 1, is characterized in that, the output terminal of drawing from each complementary induction electrode is connected and forms a public output.
3. a kind of capacitive touch screen functional sheet as described in claim 1 or 2, is characterized in that, described compensation drive electrode and complementary induction electrode adopt ITO, and are formed the shape compensating drive electrode and complementary induction electrode by strong acid etching mode.
4. a kind of capacitive touch screen functional sheet as claimed in claim 3, is characterized in that, described compensation drive electrode and complementary induction electrode are paliform, and alternately arrangement between the two.
5. a kind of capacitive touch screen functional sheet as described in claim 1 or 2, it is characterized in that, described first base material and the second base material adopt PET or PC transparent organic polymer material, and the first conductive film layer and the second conductive film layer adopt ITO, IZO, Nano Silver or CNT.
6. a capacitive touch screen, is characterized in that, comprises a kind of capacitive touch screen functional sheet described in claim 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880436.9A CN105353934A (en) | 2015-12-03 | 2015-12-03 | Capacitive touch screen sensor and capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880436.9A CN105353934A (en) | 2015-12-03 | 2015-12-03 | Capacitive touch screen sensor and capacitive touch screen |
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| Publication Number | Publication Date |
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| CN105353934A true CN105353934A (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510880436.9A Pending CN105353934A (en) | 2015-12-03 | 2015-12-03 | Capacitive touch screen sensor and capacitive touch screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049633A1 (en) * | 2016-09-14 | 2018-03-22 | 深圳市汇顶科技股份有限公司 | Pressure detection device, pressure detection method, and electronic terminal |
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| CN102053410A (en) * | 2009-10-30 | 2011-05-11 | 群康科技(深圳)有限公司 | Touch display panel, touch display device and flat display panel |
| CN104216550A (en) * | 2013-06-05 | 2014-12-17 | 晶宏半导体股份有限公司 | Electrode structure capable of reducing series impedance and stray capacitance of touch screen |
| CN104461186A (en) * | 2013-09-18 | 2015-03-25 | 义隆电子股份有限公司 | Scanning method for adjusting sampling frequency and touch device using same |
| CN204331676U (en) * | 2014-12-16 | 2015-05-13 | 深圳市帝晶光电股份有限公司 | A kind of double-deck single-point flexible capacitive touch screen |
| CN205247363U (en) * | 2015-12-03 | 2016-05-18 | 南京华睿川电子科技有限公司 | Capacitive touch screen function piece and capacitive touch screen |
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2015
- 2015-12-03 CN CN201510880436.9A patent/CN105353934A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053410A (en) * | 2009-10-30 | 2011-05-11 | 群康科技(深圳)有限公司 | Touch display panel, touch display device and flat display panel |
| CN104216550A (en) * | 2013-06-05 | 2014-12-17 | 晶宏半导体股份有限公司 | Electrode structure capable of reducing series impedance and stray capacitance of touch screen |
| CN104461186A (en) * | 2013-09-18 | 2015-03-25 | 义隆电子股份有限公司 | Scanning method for adjusting sampling frequency and touch device using same |
| CN204331676U (en) * | 2014-12-16 | 2015-05-13 | 深圳市帝晶光电股份有限公司 | A kind of double-deck single-point flexible capacitive touch screen |
| CN205247363U (en) * | 2015-12-03 | 2016-05-18 | 南京华睿川电子科技有限公司 | Capacitive touch screen function piece and capacitive touch screen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049633A1 (en) * | 2016-09-14 | 2018-03-22 | 深圳市汇顶科技股份有限公司 | Pressure detection device, pressure detection method, and electronic terminal |
| CN108200774A (en) * | 2016-09-14 | 2018-06-22 | 深圳市汇顶科技股份有限公司 | Pressure-detecting device, pressure detection method and electric terminal |
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Application publication date: 20160224 |
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