CN102455832A - Capacitive touch structure - Google Patents
Capacitive touch structure Download PDFInfo
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- CN102455832A CN102455832A CN2010105277991A CN201010527799A CN102455832A CN 102455832 A CN102455832 A CN 102455832A CN 2010105277991 A CN2010105277991 A CN 2010105277991A CN 201010527799 A CN201010527799 A CN 201010527799A CN 102455832 A CN102455832 A CN 102455832A
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Abstract
The invention relates to a capacitive touch structure. The capacitive touch structure orderly comprises a top surface providing a touch region for users, a surface substrate of a bottom surface arranged relative to the top surface, and a transparent conducting layer arranged at the bottom surface of the surface substrate. The transparent conducting layer comprises at least one electrode pattern, and the electrode pattern is formed at an side edge position of the transparent conducting layer, generates a surface capacitance distributed in the touch region and detects the capacitance change of the surface capacitance to determine the touch position of the user. The electrode patterns at each side edge position have a terminal impedance between, and the terminal impedance is 800 omega -2000 omega. The surface substrate is arranged on the surface of the whole capacitive touch structure, so that durability is improved, and production qualified rate is also improved.
Description
Technical field
The present invention relates to a kind of capacitance type touch-control structure, particularly a kind of capacitance type touch-control structure with high durability.
Background technology
Display device is widely used on the various electronic products; For the user reads the important media of information, as LCD (Liquid Crystal Display, LCD); Possess characteristics such as slimming, low power consumption and low radiation because of it, be the display device of present a kind of main flow.
But general display device only possesses the function of display message; If to operate or input instruction in electronic product, like PC or notebook computer, still must rely on other input media; Like keyboard or mouse etc., still have use obstacle to a certain degree for the beginner.For can on electronic product, realizing the instinct type mode of operation, develop the touch-control module that is arranged on the display device, and be integrated into contact panel.Compared to conventional display device, contact panel significantly reduces the user and operates required threshold because of possessing the characteristic of display message and intuition operating of contacts simultaneously, and improves the efficient of input operation.In addition; Manufacturing technology because of contact panel develops gradually again; Except the usefulness and quality that promote product; Also significantly reduce manufacturing cost, and be widely used on the general consumption electronic product, for example device for mobile communication, panel computer, digital camera, digital music player, personal digital aid (PDA) (PDA), satellite navigator (GPS) etc.
Known contact panel can be divided into four kinds of resistance-type, condenser type, acoustic wave and optical profile types etc. according to principle of induction.Wherein industry is comparatively widely used is resistance-type and capacitance type touch-control panel.
Electric resistance touch-control panel is mainly by two groups of superimposed forming of ITO conductive layer up and down; Utilize pressure to make the upper/lower electrode conducting during use; Predict panel voltage via controller and change and calculate contacting points position, to obtain the position signal of input, for example: U.S. Patent No. No.4; 822,957 technology promptly is widely used in 5 wire resistance type contact panels of Elo Touch company.Electric resistance touch-control panel is the cheapest and be widely used at cost in the market, yet, because be to use mechanical pressing method to operate, and make and friction takes place easily and reduction of service life between the element, and can't carry out the operation of complicated order.
And the structure of general capacitance type touch-control panel is on glass substrate, to form a conductive layer (like indium tin oxide layer), forms electrode pattern in its surface again, covers layer protecting film or insulation course at last on the top layer, can accomplish capacitance type touch-control panel.If desire reduces environmental disturbances, also can set up an interference resistant layer in the lower floor of glass substrate.The principle of general capacitance type touch-control panel induction is by four corners of screen voltage to be provided; Relend and help electrode pattern and form an electric field at glass surface; When the finger touches screen can make electric field cause electric current and the generation pressure drop in the contact position; Through the detecting of controller,, can calculate the pressing position of finger according to the difference of four corner ratios of current distance.For example: U.S. Patent No. case No.4,198,539, No.4,293,734, No.4,371,746, No.6,781,579 and U. S. application case No.11/409,425 have disclosed a kind of technology that is used in capacitance type touch-control panel.
Know by above; Though effectively improving electric resistance touch-control panel, capacitance type touch-control panel operates slack problem; And because needn't can reach instruction input, can prolong product serviceable life with the mode of pushing, but its conductive layer of this kind capacitance type touch-control panel around be provided with electrode pattern; Because these electrode patterns are convexly set on the conductive layer; In the time of in being assemblied in electronic product, need other position, therefore can't present the whole plane design in the electronic product integral surface with mechanism's panel shielding electrode pattern.In addition, diaphragm or insulation course in that outermost layer adopts sputtering type to design receive the restriction on materials used and the thickness, and durability can't improve.Though can use thicker diaphragm, surpass the thickness of 50 μ m, the problem that then can cause capacitance type touch-control panel to work.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of capacitance type touch-control structure, with low durability that solves the conventional condenser contact panel and the problem that can't reach the whole plane design.
For reaching above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of capacitance type touch-control structure is characterized in that including in regular turn: a surface substrate includes one and has a top surface and the basal surface with respect to this top surface setting that a confession user touches the zone; An and transparency conducting layer; Be arranged at the basal surface of this surface substrate; This transparency conducting layer includes at least one electrode pattern, and this electrode pattern is formed at the lateral margin position of this transparency conducting layer and produces one and be distributed in the surface capacitance in this touching zone and detect its capacitance change with decision user touch position; Wherein, have an end points impedance between this electrode pattern of each lateral margin position, this end points resistance value is 800 Ω～2000 Ω.
Further, the thickness≤0.55mm of this surface substrate.
Further, the specific inductive capacity of this surface substrate is 2.5～4.
Further, the material of this surface substrate is selected from the group that is made up of glass, polymethylmethacrylate, PVC, nylon, polycarbonate, polyethylene terephthalate, pi, cyclenes copolymer and organic glass.
Further, this transparency conducting layer has the signal transport part that electrically connects with this electrode pattern.
Further, this transparency conducting layer is provided with an insulation course with respect to the another side of this surface substrate.
Further, the material of this insulation course is nonpolar material, and this insulation course is selected from the group that is made up of tygon, polypropylene, polybutadiene and teflon.
Further, the material of this insulation course is the material of low pole, and this insulation course is polystyrene or natural rubber.
Further, this capacitance touching control framework also has a blooming.
Further, this blooming is arranged at the top surface of this surface substrate.
Further, this blooming is arranged at the another side of this transparency conducting layer with respect to this surface substrate.
Further, this capacitance touching control framework also has a blow-out disc.
Further, this blow-out disc is arranged at the top surface of surface substrate.
Further, this blow-out disc is arranged at the another side of this transparency conducting layer with respect to this surface substrate.
Further, this transparency conducting layer sputter is in the basal surface of this surface substrate.
Further, this transparency conducting layer is an independent film body, fits in the basal surface of this surface substrate.
The characteristics of capacitance type touch-control structure of the present invention are:
1. surface substrate is arranged at the top of transparency conducting layer and electrode pattern, through replacing traditional sputter, and reaches better durability in outer field diaphragm or insulation course.
2. skin of the present invention is a surface substrate, and electrode pattern is covered by this surface substrate, therefore can reach the design of whole plane.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION synoptic diagram of the present invention's one preferred embodiment;
Fig. 2 is the STRUCTURE DECOMPOSITION synoptic diagram of another embodiment of the present invention;
Fig. 3 is the STRUCTURE DECOMPOSITION synoptic diagram of further embodiment of this invention.
Embodiment
Relevant detailed description of the present invention and technology contents, existing accompanying drawings is following:
Fig. 1 is the STRUCTURE DECOMPOSITION synoptic diagram of the present invention's one preferred embodiment, and is as shown in the figure: the present invention discloses a kind of capacitance type touch-control structure, from top to bottom includes a surface substrate 11 and a transparency conducting layer 12 in regular turn.This surface substrate 11 includes one and has a top surface 111 and the basal surface 112 with respect to these top surface 111 settings that a confession user touches zone 113; Thickness≤the 0.55mm of this surface substrate, and its specific inductive capacity is 2.5～4.The material of this surface substrate 11 has passing through property of good optical; Can be glass, polymethylmethacrylate (Polymethylmethacrylate, PMMA), PVC (Polyvinylchloride, PVC), nylon, polycarbonate (Polycarbonate; PC), polyethylene terephthalate (Polyethyleneterephthalate; PET), pi (Polyimide, PI), cyclenes copolymer (cyclic olefincopolymer, COC) or organic glass.And this transparency conducting layer 12 is arranged at the basal surface 112 of this surface substrate 11.This transparency conducting layer 12 can be tin indium oxide (Indium Tin Oxide, ITO), antimony tin (Antimony Tin Oxide, ATO), aluminum zinc oxide (Aluminum Zinc Oxide, AZO) or indium zinc oxide (Indium Zinc Oxide, ITO) etc.This transparency conducting layer 12 includes at least one electrode pattern 13; This electrode pattern 13 is formed at the lateral margin position of this transparency conducting layer 12; Conduction produce one be distributed in this touching zone 113 surface capacitance, the variable quantity through the detecting surface capacitance is to determine user's touch position.In addition, in order to carry out the transmission of signal, this transparency conducting layer 12 has the signal transport part 121 that electrically connects with this electrode pattern 13.In this embodiment, this signal transport part 121 is arranged at the below of this transparency conducting layer 12.
In the present embodiment, this capacitance type touch-control structure be with these transparency conducting layer 12 sputters in the basal surface 112 of this surface substrate 11, and be integrated into a single face electrically-conductive backing plate.This transparency conducting layer 12 is an example with a quadrilateral, and the position of each avris edge respectively has an electrode pattern 13, and R1 has an end points impedance between the two-end-point of this electrode pattern 13, and this end points resistance value is 800 Ω～2000 Ω in the present invention.In addition, this transparency conducting layer 12 is provided with an insulation course 14 with respect to the another side of this surface substrate 11, and wherein, the material of this insulation course can be nonpolar or the low pole material; The material of nonpolar (μ=0) can be tygon, polypropylene, polybutadiene, teflon etc.; And the material of low pole (μ≤0.5) can be polystyrene, natural rubber etc.
In addition, capacitance type touch-control structure of the present invention can be set up other subsidiary function films according to different demands, and this subsidiary function film can be a blooming or be a blow-out disc, perhaps other.See also shown in Figure 2ly, can be respectively equipped with a subsidiary function film 15 in the top surface 111 of this surface substrate 11 and in the below of this insulation course 14.And in the present invention, these subsidiary function film 15 set positions are not limited thereto, and this subsidiary function film 15 also can be arranged at the another side of this transparency conducting layer 12 with respect to this surface substrate 11.In addition, this subsidiary function film 15 also can monolaterally be arranged at the top surface 111 of this surface substrate 11 or be arranged at the another side of this transparency conducting layer 12 with respect to this surface substrate 11.Through selectivity subsidiary function film 15 is set, makes capacitance type touch-control structure of the present invention can increase physics or optical characteristics and promote the surcharge of integral product.
Another embodiment of the present invention sees also shown in Figure 3ly, and in the basal surface 112 of this surface substrate 11, in this embodiment, this transparency conducting layer 12a is an independent film body, fits in the basal surface 112 of this surface substrate 11 compared to aforementioned this transparency conducting layer 12a sputter.This transparency conducting layer 12a is a quadrangular membrane body structure, and with the mode that is coated with or print one electrode pattern 13a is set in each lateral dominance, and R2 has an end points impedance between the two-end-point of this electrode pattern 13a, and this end points resistance value is 800 Ω～2000 Ω.Because this transparency conducting layer 12a and electrode pattern 13a thereof are not the basal surface 112 of first sputter in this surface substrate 11, therefore can select crude baseplate material for use, like tempered glass etc.In addition, this transparency conducting layer 12a also is provided with an insulation course 14 with respect to the another side of this surface substrate 11.In addition, in this embodiment, this transparency conducting layer 12a also has the signal transport part 121a of the transmission of carrying out signal, and this signal transport part 121a is arranged between this transparency conducting layer 12a and this surface substrate 11.And use under the situation of independent nesa coating, also can set up the subsidiary function film according to different demands, to increase whole physics or optical characteristics like previous embodiment.
In sum; Capacitance type touch-control structure of the present invention is through being arranged at surface substrate the top of transparency conducting layer and electrode pattern; To replace traditional sputter,, also reach better durability except improving the optical lens property in outer field diaphragm or insulation course.In addition, electrode pattern of the present invention is covered by this surface substrate, therefore can reach the design of whole plane.
Claims (16)
1. capacitance type touch-control structure is characterized in that including in regular turn:
One surface substrate (11) includes one and has a top surface (111) and the basal surface (112) with respect to this top surface (111) setting that a confession user touches zone (113); And
One transparency conducting layer (12,12a); Be arranged at the basal surface (112) of this surface substrate (11); This transparency conducting layer (12,12a) includes at least one electrode pattern (13,13a), and this electrode pattern (13,13a) is formed at the lateral margin position of this transparency conducting layer (12,12a) and produces one and be distributed in the surface capacitance in this touching zone (113) and detect its capacitance change with decision user touch position;
Wherein, this electrode pattern of each lateral margin position has an end points impedance between (13,13a), and this end points resistance value is 800 Ω～2000 Ω.
2. capacitance type touch-control structure according to claim 1 is characterized in that, the thickness≤0.55mm of this surface substrate (11).
3. capacitance type touch-control structure according to claim 1 is characterized in that, the specific inductive capacity of this surface substrate (11) is 2.5～4.
4. capacitance type touch-control structure according to claim 1; It is characterized in that the material of this surface substrate (11) is selected from the group that is made up of glass, polymethylmethacrylate, PVC, nylon, polycarbonate, polyethylene terephthalate, pi, cyclenes copolymer and organic glass.
5. capacitance type touch-control structure according to claim 1 is characterized in that, this transparency conducting layer (12,12a) has the signal transport part (121,121a) that electrically connects with this electrode pattern (13,13a).
6. capacitance type touch-control structure according to claim 1 is characterized in that, this transparency conducting layer (12,12a) is provided with an insulation course (14) with respect to the another side of this surface substrate (11).
7. capacitance type touch-control structure according to claim 6 is characterized in that, the material of this insulation course (14) is nonpolar material, and this insulation course is selected from the group that is made up of tygon, polypropylene, polybutadiene and teflon.
8. capacitance type touch-control structure according to claim 6 is characterized in that, the material of this insulation course (14) is the material of low pole, and this insulation course (14) is polystyrene or natural rubber.
9. capacitance type touch-control structure according to claim 1 is characterized in that, this capacitance touching control framework also has a blooming.
10. capacitance type touch-control structure according to claim 9 is characterized in that, this blooming is arranged at the top surface (111) of this surface substrate (11).
11. capacitance type touch-control structure according to claim 9 is characterized in that, this blooming is arranged at the another side of this transparency conducting layer (12,12a) with respect to this surface substrate (11).
12. capacitance type touch-control structure according to claim 1 is characterized in that, this capacitance touching control framework also has a blow-out disc.
13. capacitance type touch-control structure according to claim 12 is characterized in that, this blow-out disc is arranged at the top surface (111) of surface substrate (11).
14. capacitance type touch-control structure according to claim 12 is characterized in that, this blow-out disc is arranged at the another side of this transparency conducting layer (12,12a) with respect to this surface substrate (11).
15. capacitance type touch-control structure according to claim 1 is characterized in that, this transparency conducting layer (12,12a) sputter is in the basal surface (112) of this surface substrate (11).
16. capacitance type touch-control structure according to claim 1 is characterized in that, this transparency conducting layer (12,12a) is an independent film body, fits in the basal surface (112) of this surface substrate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105277991A CN102455832A (en) | 2010-11-02 | 2010-11-02 | Capacitive touch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105277991A CN102455832A (en) | 2010-11-02 | 2010-11-02 | Capacitive touch structure |
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| CN102455832A true CN102455832A (en) | 2012-05-16 |
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| CN2010105277991A Pending CN102455832A (en) | 2010-11-02 | 2010-11-02 | Capacitive touch structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513831A (en) * | 2012-06-19 | 2014-01-15 | 华宏新技股份有限公司 | Monolithic laminar projected capacitive touch panel structure and manufacturing method thereof |
| CN104346007A (en) * | 2013-08-05 | 2015-02-11 | 百慕来(苏州)电子技术有限公司 | Capacitive touch screen and preparation method for same |
| CN106201074A (en) * | 2016-06-30 | 2016-12-07 | 京东方科技集团股份有限公司 | Touch base plate and preparation method thereof, touch screen |
| CN110428970A (en) * | 2019-08-06 | 2019-11-08 | 深圳市峰泳科技有限公司 | The manufacturing method of face capacitance component, display device and face capacity cell |
Citations (4)
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|---|---|---|---|---|
| US6395863B2 (en) * | 2000-02-02 | 2002-05-28 | Microtouch Systems, Inc. | Touch screen with polarizer and method of making same |
| CN101010263A (en) * | 2004-08-26 | 2007-08-01 | 3M创新有限公司 | Antiglare coating and articles |
| WO2008093975A1 (en) * | 2007-02-02 | 2008-08-07 | Ampnt Inc. | Touch panel having closed loop electrode for equipotential build-up and manufacturing method thereof |
| CN101292362A (en) * | 2005-08-12 | 2008-10-22 | 凯博瑞奥斯技术公司 | Nanowires-based transparent conductors |
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2010
- 2010-11-02 CN CN2010105277991A patent/CN102455832A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6395863B2 (en) * | 2000-02-02 | 2002-05-28 | Microtouch Systems, Inc. | Touch screen with polarizer and method of making same |
| CN101010263A (en) * | 2004-08-26 | 2007-08-01 | 3M创新有限公司 | Antiglare coating and articles |
| CN101292362A (en) * | 2005-08-12 | 2008-10-22 | 凯博瑞奥斯技术公司 | Nanowires-based transparent conductors |
| WO2008093975A1 (en) * | 2007-02-02 | 2008-08-07 | Ampnt Inc. | Touch panel having closed loop electrode for equipotential build-up and manufacturing method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513831A (en) * | 2012-06-19 | 2014-01-15 | 华宏新技股份有限公司 | Monolithic laminar projected capacitive touch panel structure and manufacturing method thereof |
| CN104346007A (en) * | 2013-08-05 | 2015-02-11 | 百慕来(苏州)电子技术有限公司 | Capacitive touch screen and preparation method for same |
| CN106201074A (en) * | 2016-06-30 | 2016-12-07 | 京东方科技集团股份有限公司 | Touch base plate and preparation method thereof, touch screen |
| CN106201074B (en) * | 2016-06-30 | 2019-08-09 | 京东方科技集团股份有限公司 | Touch base plate and preparation method thereof, touch screen |
| CN110428970A (en) * | 2019-08-06 | 2019-11-08 | 深圳市峰泳科技有限公司 | The manufacturing method of face capacitance component, display device and face capacity cell |
| CN110428970B (en) * | 2019-08-06 | 2020-11-13 | 深圳市峰泳科技有限公司 | Surface capacitance module, display device, and method for manufacturing surface capacitance element |
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Application publication date: 20120516 |