CN103246420A - Monolayer multipoint capacitive touch screen - Google Patents
Monolayer multipoint capacitive touch screen Download PDFInfo
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- CN103246420A CN103246420A CN2013101749037A CN201310174903A CN103246420A CN 103246420 A CN103246420 A CN 103246420A CN 2013101749037 A CN2013101749037 A CN 2013101749037A CN 201310174903 A CN201310174903 A CN 201310174903A CN 103246420 A CN103246420 A CN 103246420A
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Abstract
The invention relates to a monolayer multipoint capacitive touch screen which comprises a touch panel with a visible area. A plurality of independent multi-line multi-column electrode units are arranged in the visible area and the visible area comprises a first end visible area, a second end visible area and a middle visible area. The electrode units in the first end visible area are connected to a first end non-visible area through independent first lines; the electrode units in the middle visible area are connected to a side edge non-visible area through independent middle lines; and the electrode units in the second end visible area are connected to a second end non-visible area through independent second lines. In the side edge non-visible area, the middle lines are connected to the first end non-visible area through a second conducting wire; and in the second end non-visible area, the second lines are connected with and penetrate through the side edge non-visible area through a third conducting wire and then are connected to the first end non-visible area. Line lengths of the middle visible area are short, a resistance value of a whole sensing channel is reduced, and medium and large dimensions can be supported.
Description
Technical field
The present invention relates to the touch-control field, particularly relate to a kind of individual layer multiple spot capacitance touch screen.
Background technology
Common touch panel component comprises the electrode of one or more layers emission/sensing signal usually, the substrate of a slice support electrode, shield assemblies and have another plate bases of scratch resistance, anti-dazzle, anti-fingerprint/water, antireflection etc.Make this type of contact panel and need make good component joint to two respectively together.Can make the thickness of contact panel thicker if use the substrate contain multilayer sensing electrode unit to add the manufacture of two-layer substrate that another sheet has shield assemblies and have a substrate of scratch resistance, anti-dazzle, anti-fingerprint/water, antireflection etc., and comprise multilayer sensing electrode cell substrate and need to combine after the layering manufacturing, complex manufacturing increases the cementing agent cost that makes up between substrate and the substrate.Therefore how attenuate material and reduce the number of plies shortens manufacturing process flow, becomes the research topic of vast touchscreen manufacturer.
Join illustrated in figures 1 and 2, a kind of visible area of the touch-screen of supporting the individual layer multiple spot is formed by electrode unit 700 arrays of multiple lines and multiple rows, wherein visible area is divided into two, above A part by ITO lead-in wire 800 electrode unit 700 is connected to the non-visible area of first end, below B part by ITO lead-in wire 800 electrode unit 700 is connected to the non-visible area of the second end, after utilizing the high conductivity conducting medium to connect, the non-visible area of the second end is connected to the non-visible area at top then through the frame of the dual-side of touch-screen, be connected with binding with flexible PCB again after top conducting medium lead-in wire converges, to be communicated with control chip.
The design of above-mentioned support individual layer multiple spot be owing to need use narrow ITO to make lead-in wire at the visible area of touch-screen, but is limited by the square resistance value ratio higher (100-500 Ω) of ITO, can only accomplish that usually below 5 cun and 5 cun, middle large scale structure can't be carried out.
Summary of the invention
Based on this, be necessary to propose large-sized individual layer multiple spot capacitance touch screen in a kind of can the support.
A kind of individual layer multiple spot capacitance touch screen, comprise contact panel, described contact panel is provided with visible area, be positioned at described visible area non-visible area all around, be provided with a plurality of electrode units that the multiple lines and multiple rows array arranges that independently are in the wherein said visible area, described visible area comprises the first end visible area, second visible area and the middle part visible area between first end visible area and the second end visible area, described non-visible area comprises the non-visible area of first end, two non-visible areas of side of the non-visible area of the second end and both sides, electrode unit in the described first end visible area is connected to the non-visible area of described first end by first cabling independently, electrode unit in the visible area of described middle part by independently the middle part cabling be connected to the non-visible area of described side, electrode unit in the described the second end visible area is connected to the non-visible area of described the second end by second cabling independently, wherein said middle part cabling is connected to the non-visible area of described first end at the non-visible area of described side by second conductor wire, and described second cabling is connected to the non-visible area of described first end again after the non-visible area of described the second end connects by the 3rd conductor wire and passes the non-visible area of described side.
Therein among embodiment, described middle part visible area is divided into first and the second portion that is arranged side by side again, and the middle part cabling of the middle part cabling of electrode unit and described second portion electrode unit is connected to the non-visible area of different sides respectively in the wherein said first.
Among embodiment, described middle part visible area has a plurality of therein, the middle part cabling of the electrode unit in the visible area of described a plurality of middle parts from the slit between adjacent two middle part visible areas through and be connected to the non-visible area of described side.
Among embodiment, the non-visible area of described side also is provided with the sidepiece insulation course that covers described middle part cabling therein, and described sidepiece insulation course is provided with the sidepiece via hole, and described second conductor wire is connected with described middle part cabling by described sidepiece via hole.
Among embodiment, the non-visible area of described the second end also is provided with second insulation course that covers described second cabling therein, and described second insulation course is provided with second via hole, and described the 3rd conductor wire is connected with described second cabling by described second via hole.
Therein among embodiment, the non-visible area of described first end also is provided with first insulation course that covers described first cabling, described first insulation course is provided with first via hole, also is provided with first conductor wire that is connected with described first cabling by described first via hole in the non-visible area of described first end.
Therein among embodiment, in the described first end visible area, be connected to same first conductor wire with first cabling of the electrode unit of delegation; In the visible area of described middle part, be connected to same second conductor wire with the middle part cabling of the electrode unit of delegation; In the described the second end visible area, be connected to same article of the 3rd conductor wire with second cabling of the electrode unit of delegation.
Therein among embodiment, described individual layer multiple spot capacitance touch screen also comprises a plurality of electrode blocks that array arranges that are, each electrode block and an electrode unit constitute one and repeat electrode unit, and described repetition electrode unit is row shape repeated arrangement and is formed with a plurality of row.
Therein among embodiment, described electrode block and described electrode unit shape complementarity, the two intersects mutually and is full encirclement shape or half-surrounded.
Among embodiment, the repetition electrode unit of same row is divided into upper and lower two and half districts therein, and wherein the electrode block in the upper half directly links to each other, and the electrode block in the bottom half is also directly connected to each other, but is isolated from each other between the electrode block in upper and lower half district.
Among embodiment, the electrode block in the upper half of the repetition electrode unit of same row is connected to the non-visible area of described first end by contact conductor therein; Electrode block in the bottom half of the repetition electrode unit of same row is connected with the 4th conductor wire after being connected to the non-visible area of the second end by contact conductor, and described the 4th conductor wire is connected to the non-visible area of described first end after passing the non-visible area of described side again.
Above-mentioned individual layer multiple spot capacitance touch screen, the middle part cabling of the electrode unit of middle part visible area causes the non-visible area of side earlier, and then cause the non-visible area of first end by conductor wire, than the conventional art cabling from visible area inside by being connected to first or the way of the non-visible area of the second end then, the track lengths of middle visible area is shorter, the track lengths of whole visible area is shortened, thereby reduced the resistance value of whole piece sense channel, large scale in therefore can realizing supporting.
Description of drawings
Fig. 1 is the structural representation of the capacitance touch screen of conventional art;
Fig. 2 is the array synoptic diagram of the electrode unit of capacitance touch screen shown in Figure 1;
Fig. 3 is the synoptic diagram of Wiring structure of the individual layer multiple spot capacitance touch screen of an embodiment;
Fig. 4 is the enlarged drawing of circle X part among Fig. 3;
Fig. 5 is the structural representation of the individual layer multiple spot capacitance touch screen of an embodiment;
Fig. 6 is the structural drawing of the contact panel of individual layer multiple spot capacitance touch screen shown in Figure 5;
Fig. 7 is the synoptic diagram of the line conductive layer of individual layer multiple spot capacitance touch screen shown in Figure 5;
Fig. 8 is the structural drawing of the insulation course of individual layer multiple spot capacitance touch screen shown in Figure 5;
Fig. 9 is the structural drawing of the transparent conductive film of individual layer multiple spot capacitance touch screen shown in Figure 5.
Embodiment
Please refer to Fig. 3 and Fig. 4, show the schematic diagram of Wiring structure of the individual layer multiple spot capacitance touch screen of an embodiment.This individual layer multiple spot capacitance touch screen is provided with visible area, visible area is outward the non-visible area of touch-screen, it also is the frame of touch-screen, but not visible area generally can be divided into the non-visible area of first end (also being the non-visible area in top usually), the non-visible area of the second end (i.e. the non-visible area in bottom) and the non-visible area of side, this point is well known to those skilled in the art, and repeats no more.As shown in Figure 3, the visible area of this individual layer multiple spot capacitance touch screen is to be formed by a plurality of electrode unit 110 arrays that independently are multiple lines and multiple rows, and wherein a plurality of electrode units 110 lead to cabling separately.
As shown in Figure 3, the visible area of this individual layer multiple spot capacitance touch screen is divided into first end visible area 120, middle part visible area 130 and the second end visible area 140.In the present embodiment, first end visible area 120 is the tops that are positioned at the touch-screen visible area, and the second end visible area 140 then is positioned at the bottom of touch-screen visible area.Need to prove that first end visible area 120 can certainly be the bottom that is positioned at the touch-screen visible area, so-called first end visible area 120 and the second end visible area 140 are just comparatively speaking.
In the present embodiment, the middle part cabling 160 of the electrode unit 110 of middle part visible area 130 is to draw from the visible area side, need be connected to the way of the non-visible area 140 of the second end than conventional art middle part cabling, the Wiring structure of the individual layer multiple spot capacitance touch screen of present embodiment, the length of the cabling of the center section of the visible area of touch-screen is shortened, thereby reduce the length of cabling in the whole visible area, and then reduced the resistance value of whole piece sense channel, thereby reach large scale in the support and realize the purpose of individual layer multipoint configuration.
The quantity that is appreciated that electrode unit 110 in first end visible area 120, middle part visible area 130 and the second end visible area 140 can arrange as required.So-called middle part visible area is not just to arrange between two parties yet, as long as can reach the purpose of the track lengths of the visible area that reduces touch-screen.
Please refer to Fig. 3, middle part visible area 130 can be divided into first and the second portion that is set up in parallel again, wherein the middle part cabling 160 of the electrode unit in the first 110 is connected to the non-visible area of side in left side, and the middle part cabling 160 of the electrode unit 110 in the second portion then is connected to the non-visible area of side on right side.In other words, in the first middle part cabling 160 of the middle part cabling 160 of electrode unit 110 and second portion electrode unit 110 to draw direction opposite.Like this, middle part cabling 160 need not to pass in the horizontal the visible area of touch-screen, and length is less.First and second portion can symmetry or asymmetric settings.
Middle part visible area 140 can have a plurality of, and middle part cabling 160 can and be connected to the non-visible area of side from the slit process between adjacent two middle part visible areas like this.Certainly, so-called a plurality of middle parts visible area 130 can be understood as a big middle part visible area, and 160 of middle part cablings pass and be connected to the non-visible area of side as required between two adjacent column electrode unit 110.
Below in conjunction with a concrete application, illustrate the application can support in the structure of large-sized individual layer multiple spot capacitance touch screen.
Please refer to Fig. 5 to Fig. 9, the individual layer multiple spot capacitance touch screen of an embodiment comprises contact panel 210, is arranged on transparent conductive film 220 on the contact panel 210, is arranged on insulation course 230 and line conductive layer 240 on the transparent conductive film 220.
Transparent conductive film 220 has a plurality of electrode unit 222 and electrode blocks 224 that the multiple lines and multiple rows array arranges that independently are, and electrode unit 222 and electrode block 224 are positioned at the visible area 212 of contact panel 210, have constituted the induction zone of contact panel 210.In the present embodiment, transparent conductive film 220 can adopt indium oxide coating etching (ITO) to make, to obtain induction zone.Need point out that the acquisition of induction zone can also obtain in several ways, for example: can arrange that ito thin film obtains transparent conducting glass at another glass baseplate, then with contact panel 210 combinations; Can also be on another glass baseplate adhesion metal nano thin-film and expose-develop-etching obtain conductive pattern, then with contact panel 210 combinations; Can also be on another glass baseplate, to obtain conductive pattern by the impression mode, then with contact panel 210 combinations.
In the present embodiment, electrode unit 222 and electrode block 224 that transparent conductive film 220 is formed with a plurality of shape complementarities and is isolated from each other, electrode unit 222 and electrode block 224 settings intersected with each other, be semi-surrounding or surround shape entirely, in the present embodiment, be that each electrode block 224 surrounds an electrode unit 222.Each electrode block 224 constitutes one with institute electrode surrounded unit 222 and repeats electrode unit, and as Fig. 5 and shown in Figure 9, this repetition electrode unit is row shape repeated arrangement and is formed with a plurality of row.In the present embodiment, electrode unit 222 roughly is " X " shape, and the shape of electrode unit 222 is not limited thereto certainly, as being rhombus, rectangle, triangle or irregular shape.The electrode block 224 that is arranged in the repetition electrode unit of same row constitutes a row drive electrode, electrode unit 222 with delegation then constitutes induction electrode, and will after walking the non-visible area that line parallel guides to touch-screen, be connected with the flexible PCB binding, to be communicated with control chip.
In the top description, for ease of explanation, be that the row electrode that electrode block 224 constitutes is called drive electrode, the column electrode that electrode unit 222 constitutes then will be called induction electrode.But need to prove that induction electrode and drive electrode itself there is no differentiation, so electrode unit 222 and electrode block 224 using as the electrode of the sort of type specifically, is the control chip that depends on IC manufacturer.
Please refer to Fig. 9 and in conjunction with Fig. 5, after transparent conductive film 220 is arranged on the contact panel 210, the visible area 212 of contact panel 210 is divided into middle part visible area 2124 and the second end visible area 2126 of first end visible area 2122, centre.Be non-visible area around the visible area 212, comprise the non-visible area 2144 of two sides and the non-visible area 2146 of the second end of the non-visible area 2142 of first end, both sides.
Please refer to Fig. 9 and Fig. 5, the electrode unit 222 that is arranged in first end visible area 2122 is connected to the non-visible area 2142 of first end by first cabling 226 independently separately; Be arranged in the middle part visible area 2124 electrode unit 222 then separately by independently the middle part cabling 227 be connected to the non-visible area 2144 of side; The electrode unit 222 that is arranged in the second end visible area 2126 is connected to the non-visible area 2146 of the second end by second cabling 228 independently separately.
Please refer to Fig. 5 to Fig. 7 and Fig. 9, first conductor wire 242 that 226 of first cablings are connected directly in the non-visible area 2142 of first end connects.Middle part cabling 227 is connected to the non-visible area of side 2144 backs and is connected to the non-visible area 2142 of first end by second conductor wire 244, is connected with the flexible PCB binding to converge the back with first cabling 226.Second cabling 228 is connected to the non-visible area of the second end 2146 backs and connects by the 3rd conductor wire 246, and the 3rd conductor wire 246 is connected to the non-visible area 2142 of first end after passing the non-visible area 2144 of side more then.This set connected mode, obviously can reduce the length of middle part cabling 227, and then make the track lengths of whole touch screen visible area 212 less, thus reduce the resistance value of whole piece sense channel, thus reach large scale in the support and realize the purpose of individual layer multipoint configuration.
Concrete connected mode is as follows: in the first end visible area 2122, be connected to same first conductor wire 242 with first cabling 226 of the electrode unit 222 of delegation; In the visible area 2124 of middle part, be connected to same second conductor wire 244 with the middle part cabling 227 of the electrode unit 222 of delegation; In the second end visible area 2126, be connected to same article of the 3rd conductor wire 246 with second cabling 228 of the electrode unit 222 of delegation.In addition, please refer to Fig. 9, the repetition electrode unit of same row is divided into upper and lower two and half districts again, and wherein the electrode block 224 in upper and lower half district directly links to each other respectively, but is isolated from each other between the electrode block in upper and lower half district.Electrode block 224 in the upper half is to be connected directly to the non-visible area 2142 of first end by contact conductor 260; 224 elder generations of electrode block in the bottom half are connected to the non-visible area 2146 of the second end by contact conductor 260, by the 4th conductor wire 248 each contact conductor 260 is connected then, the 4th conductor wire 248 is connected to the non-visible area 2142 of first end after passing the non-visible area 2144 of side more again.Like this, multiple row repeats electrode unit and just forms a plurality of row drive electrodes and a plurality of capable sensing electrode that can be connected with flexible PCB and then be communicated with control chip.
Please refer to Fig. 5 and Fig. 8, insulation course 230 comprises first insulation course 232, middle part insulation course 234, second insulation course 236.First insulation course 232 is arranged in the non-visible area 2142 of first end and covers first cabling 226, first insulation course 232 is provided with first via hole 2322, first conductor wire 242 is connected with first cabling 226 by first via hole 2322, can avoid first cabling of the electrode unit 222 of different rows to communicate with each other like this.Middle part insulation course 234 is arranged in the non-visible area 2144 of side and covers middle part cabling 227, middle part insulation course 234 is provided with middle part via hole 2342, second conductor wire 244 is connected with middle part cabling 227 by middle part via hole 2342, can avoid the middle part cabling of the electrode unit 222 of different rows to communicate with each other like this.Second insulation course 236 is arranged in the non-visible area 2146 of the second end and covers second cabling 228, second insulation course 236 is provided with second via hole 2362, the 3rd conductor wire 246 is connected with second cabling 228 by middle part via hole 2362, can avoid second cabling of the electrode unit 222 of different rows to communicate with each other like this.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (11)
1. individual layer multiple spot capacitance touch screen, comprise contact panel, described contact panel is provided with visible area, be positioned at described visible area non-visible area all around, be provided with a plurality of electrode units that the multiple lines and multiple rows array arranges that independently are in the wherein said visible area, described visible area comprises the first end visible area, second visible area and the middle part visible area between first end visible area and the second end visible area, described non-visible area comprises the non-visible area of first end, two non-visible areas of side of the non-visible area of the second end and both sides, it is characterized in that, electrode unit in the described first end visible area is connected to the non-visible area of described first end by first cabling independently, electrode unit in the visible area of described middle part by independently the middle part cabling be connected to the non-visible area of described side, electrode unit in the described the second end visible area is connected to the non-visible area of described the second end by second cabling independently, wherein said middle part cabling is connected to the non-visible area of described first end at the non-visible area of described side by second conductor wire, and described second cabling is connected to the non-visible area of described first end again after the non-visible area of described the second end connects by the 3rd conductor wire and passes the non-visible area of described side.
2. individual layer multiple spot capacitance touch screen according to claim 1, it is characterized in that, described middle part visible area is divided into first and the second portion that is arranged side by side again, and the middle part cabling of the middle part cabling of electrode unit and described second portion electrode unit is connected to the non-visible area of different sides respectively in the wherein said first.
3. individual layer multiple spot capacitance touch screen according to claim 1, it is characterized in that, described middle part visible area has a plurality of, and the middle part cabling of the electrode unit in the visible area of described a plurality of middle parts is from the slit process between adjacent two middle part visible areas and be connected to the non-visible area of described side.
4. individual layer multiple spot capacitance touch screen according to claim 1, it is characterized in that, the non-visible area of described side also is provided with the sidepiece insulation course that covers described middle part cabling, and described sidepiece insulation course is provided with the sidepiece via hole, and described second conductor wire is connected with described middle part cabling by described sidepiece via hole.
5. individual layer multiple spot capacitance touch screen according to claim 1, it is characterized in that, the non-visible area of described the second end also is provided with second insulation course that covers described second cabling, described second insulation course is provided with second via hole, and described the 3rd conductor wire is connected with described second cabling by described second via hole.
6. individual layer multiple spot capacitance touch screen according to claim 1, it is characterized in that, the non-visible area of described first end also is provided with first insulation course that covers described first cabling, described first insulation course is provided with first via hole, also is provided with first conductor wire that is connected with described first cabling by described first via hole in the non-visible area of described first end.
7. individual layer multiple spot capacitance touch screen according to claim 6 is characterized in that, in the described first end visible area, is connected to same first conductor wire with first cabling of the electrode unit of delegation; In the visible area of described middle part, be connected to same second conductor wire with the middle part cabling of the electrode unit of delegation; In the described the second end visible area, be connected to same article of the 3rd conductor wire with second cabling of the electrode unit of delegation.
8. individual layer multiple spot capacitance touch screen according to claim 1, it is characterized in that, described individual layer multiple spot capacitance touch screen also comprises a plurality of electrode blocks that array arranges that are, each electrode block and an electrode unit constitute one and repeat electrode unit, and described repetition electrode unit is row shape repeated arrangement and is formed with a plurality of row.
9. individual layer multiple spot capacitance touch screen according to claim 8 is characterized in that, described electrode block and described electrode unit shape complementarity, and the two intersects mutually and is full encirclement shape or half-surrounded.
10. individual layer multiple spot capacitance touch screen according to claim 8, it is characterized in that, the repetition electrode unit of same row is divided into upper and lower two and half districts, wherein the electrode block in the upper half directly links to each other, electrode block in the bottom half is also directly connected to each other, but is isolated from each other between the electrode block in upper and lower half district.
11. individual layer multiple spot capacitance touch screen according to claim 10 is characterized in that the electrode block in the upper half of the repetition electrode unit of same row is connected to the non-visible area of described first end by contact conductor; Electrode block in the bottom half of the repetition electrode unit of same row is connected with the 4th conductor wire after being connected to the non-visible area of the second end by contact conductor, and described the 4th conductor wire is connected to the non-visible area of described first end after passing the non-visible area of described side again.
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| US11086460B2 (en) | 2018-07-26 | 2021-08-10 | Chongqing Boe Optoelectronics Technology Co., Ltd. | Touch substrate, method for manufacturing same, and touch device |
| CN111475061A (en) * | 2020-04-10 | 2020-07-31 | 意力(广州)电子科技有限公司 | Preparation method of touch screen and touch screen |
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| CN103246420B (en) | 2016-08-10 |
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Effective date of registration: 20210220 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 233 Kangyang Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Suzhou OFilm Tech. Co.,Ltd. |