CN103412692B - Double-layer single-face wire film capacitive touch screen - Google Patents
Double-layer single-face wire film capacitive touch screen Download PDFInfo
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- CN103412692B CN103412692B CN201310301508.0A CN201310301508A CN103412692B CN 103412692 B CN103412692 B CN 103412692B CN 201310301508 A CN201310301508 A CN 201310301508A CN 103412692 B CN103412692 B CN 103412692B
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Abstract
The invention relates to a double-layer single-face wire film capacitive touch screen. The double-layer single-face wire film capacitive touch screen comprises a transparent substrate and a displaying screen. A transparent wire electrode film is attached to the transparent substrate, and is composed of two transparent base materials attached to each other. A transverse wire electrode unit array is arranged on the surface of one transparent base material on the upper layer, and a longitudinal wire electrode unit array is arranged on the bottom face of the other transparent base material on the lower layer. The transverse wire electrode unit array is composed of more than two parallel transverse electrode units, and the longitudinal wire electrode unit array is composed of more than two parallel longitudinal electrode units. Each transverse electrode unit is composed of more than two transverse wires which are connected in parallel and are arranged in a parallel mode. Each longitudinal electrode unit is composed of more than two longitudinal wires which are connected in parallel and are arranged in a parallel mode. The transverse wires and the longitudinal wires are formed by etching or printing conducting materials. According to the transverse wire electrode film, the wires are etched or printed in an assembly line mode, and the size of the touch screen can be large.
Description
Technical field
The present invention relates to dual-layer, single-sided conductor wire membrane capacitance formula touch-screen.
Background technology
Touch-screen, according to the difference of principle of work and transmission medium, can be divided into resistance-type, condenser type, ultrasonic type, induction and infrared type.Wherein capacitance touch screen is high because of accuracy, easily realizes multi-point touch and is widely used.
Capacitance touch screen is to utilize the induction current of human body to carry out work, and when user's finger touch is during to certain point on screen, touch screen controller need to obtain the horizontal and vertical current information of this point, with the position of accurate Calculation touch point.Conventional capacitance touch screen is generally on transparency carrier, to plate one deck ITO conductive layer, because ito surface resistance is high, generally reaches 30-150 Ω, so must be etched into the electrode wires of wide cut in order to improve sensitivity, reduces resistance and improves capacitance, but can affect resolution.Meanwhile, prior art is subject to the restriction of technique and production equipment, and production efficiency is low, and the size of touch-screen is very restricted.
Summary of the invention
The object of the present invention is to provide and a kind ofly can realize in large size, the highly sensitive dual-layer, single-sided conductor wire membrane capacitance formula touch-screen of touch-screen.
For achieving the above object, the present invention is by the following technical solutions:
Dual-layer, single-sided conductor wire membrane capacitance formula touch-screen, it comprises transparency carrier and display screen, transparency carrier is positioned at the front end of display screen, on described transparency carrier, be pasted with electrically conducting transparent line electrode film, described electrically conducting transparent line electrode film is made up of two transparent bases bonded to each other, the surface of upper strata transparent base is provided with transverse conductance line electrode cell array, the bottom surface of lower floor's transparent base is provided with longitudinal conductor wire electrode unit array, described transverse conductance line electrode cell array is made up of two transverse electrode unit that are parallel to each other above, described longitudinal conductor wire electrode unit array is made up of two longitudinal electrode unit that are parallel to each other above, described transverse electrode unit is made up of two more parallels and the transverse conductance line that is arranged in parallel, and described longitudinal electrode unit is made up of two more parallels and longitudinal conductor wire of being arranged in parallel, described transverse conductance line and longitudinally conductor wire are all by conductive material etch-forming or printing moulding, the lead end of described transverse electrode unit and the lead end of longitudinal electrode unit are all connected to signal processor.
Described conductive material is copper, aluminium, gold, silver or conductive carbon paste, because the electric conductivity of copper, aluminium, gold, silver or conductive carbon paste is better, use touch screen electrode surface resistance that described conductive material makes at 0.15-3 Ω, be significantly less than the electrode surface resistance value that ITO mode is made, therefore, the sensitivity of touch-screen is higher.
Described transverse conductance line and the longitudinally live width of conductor wire are 3-100 μ m, and thickness is 2-10 μ m.The live width of transverse conductance line and longitudinally conductor wire is superfine, human eye is difficult to feel its existence, the transverse conductance line electrode cell array of making like this and longitudinally conductor wire electrode unit array can be realized transparence, electrically conducting transparent line electrode mould is attached on the transparency carrier that is positioned at display screen front end, does not affect the showing transparency property of transparency carrier to display screen completely.
Described transverse conductance line and the longitudinally shape of conductor wire are waveform.Waveform can effectively improve unit of capacity area, thus the sensitivity that has improved touch-screen.
Described transparent base is by PET or TAC forming materials.
The thickness of described transparent base is 20-200 μ m.Therefore, the integral thickness of electrically conducting transparent line electrode mould as thin as a wafer, does not affect the integral thickness of touch-screen.
Darkening process is all passed through on described transverse conductance line and the longitudinally surface of conductor wire.The transverse conductance line of process Darkening process and longitudinally conductor wire can absorb the metallic reflection light on conductor wire surface, increase penetrating rate, improve visual effect.
In described transverse conductance line electrode cell array, the spacing of adjacent two transverse electrode unit is 0.1-8mm, in described longitudinal conductor wire electrode unit array, the spacing of adjacent two longitudinal electrode unit is 0.1-8mm, in described transverse electrode unit, the spacing of adjacent two transverse conductance lines is 0.1-8mm, and in described longitudinal electrode unit, the spacing of adjacent two longitudinal conductor wires is 0.1-8mm.
Described transparency carrier is glass or transparent organic glass, and the thickness of transparency carrier is 0.3-10mm.
The present invention adopts above technical scheme, user is in the time of touch screen, owing to there being electric field in human body, between transverse conductance line electrode cell array on finger and electrically conducting transparent line electrode mould and longitudinal conductor wire electrode unit array, form a coupling capacitance, in the time that finger touch is on electrically conducting transparent line electrode mould, because the electric capacity of contact changes, in transverse conductance line electrode cell array and longitudinal conductor wire electrode unit array, there will be the induction current that flows to contact, thereby calculate faradic power and accurately calculate the position of contact by signal processor.Electrically conducting transparent line electrode film in the present invention be by two transparent bases respectively by after etching or printing conductive line again laminating form, production technology is simple, yield rate is high, and production efficiency is high.Arrange even, intensively due to the longitudinal conductor wire on transverse conductance line and lower floor's transparent base on the transparent base of upper strata, therefore increased the linearity of electrically conducting transparent line electrode mould entirety, the antijamming capability and the sensitivity that have improved touch-screen.In addition, longitudinal conductor wire on transverse conductance line and lower floor's transparent base on the transparent base of upper strata is all by conductive material etching or printing moulding, therefore transverse conductance line and longitudinal conductor wire all can carry out streamline etching or printing, improve production efficiency, and electrically conducting transparent line electrode mould size can do very greatly, therefore the size of touch-screen just can maximize, and touch-screen size minimum of the present invention can be accomplished 3 cun, maximum can be accomplished 130 cun, is widely used.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details;
Fig. 1 is decomposition texture schematic diagram of the present invention;
Fig. 2 is the part schematic diagram of the transverse conductance line electrode cell array on the transparent base of upper strata of the present invention;
Fig. 3 is the part schematic diagram of the longitudinal conductor wire electrode unit array on lower floor of the present invention transparent base.
Embodiment
As Fig. 1, shown in Fig. 2 or Fig. 3, dual-layer, single-sided conductor wire membrane capacitance formula touch-screen of the present invention, it comprises transparency carrier 1 and display screen 2, transparency carrier 1 is positioned at the front end of display screen 2, described electrically conducting transparent line electrode film 3 is by two transparent bases 31 bonded to each other, 32 compositions, the surface of upper strata transparent base 31 is provided with transverse conductance line electrode cell array, the bottom surface of lower floor's transparent base 32 is provided with longitudinal conductor wire electrode unit array, described transverse conductance line electrode cell array is made up of two transverse electrode unit 33 that are parallel to each other above, described longitudinal conductor wire electrode unit array is made up of two longitudinal electrode unit 34 that are parallel to each other above, described transverse electrode unit 33 is made up of two more parallels and the transverse conductance line 331 that is arranged in parallel, and described longitudinal electrode unit 34 is made up of two more parallels and longitudinal conductor wire 341 of being arranged in parallel, described transverse conductance line 331 and longitudinally conductor wire 341 are all by conductive material etch-forming or accurate printing moulding, the lead end 332 of described transverse electrode unit 33 and the lead end 342 of longitudinal electrode unit 34 are all connected to signal processor (not shown).
Adopt above structure, electrically conducting transparent line electrode film 3 be by two transparent bases 31 respectively by after etching or printing conductive line again laminating form, production technology is simple, yield rate is high, and production efficiency is high.Arrange even, intensively due to the longitudinal conductor wire 341 on transverse conductance line 331 and lower floor's transparent base 32 on upper strata transparent base 31, therefore increased the linearity of electrically conducting transparent line electrode mould 3 entirety, the antijamming capability and the sensitivity that have improved touch-screen.Meanwhile, transverse electrode unit 33 and longitudinal electrode unit 34 form by many conductor wires, therefore greatly improved precision, the sensitivity of touch-screen, and maloperation are few.
Described conductive material is copper, aluminium, gold, silver or conductive carbon paste and other metal alloy conductive materials, because the electric conductivity of copper, aluminium, gold, silver or conductive carbon paste is better, use touch screen electrode surface resistance that described conductive material makes at 0.15-3 Ω, be significantly less than the electrode surface resistance value that ITO mode is made, therefore, the sensitivity meeting of touch-screen is higher.
Described transverse conductance line 331 and the longitudinally live width of conductor wire 341 are 3-100 μ m, and thickness is 2-10 μ m.The live width of transverse conductance line 331 and longitudinally conductor wire 341 is superfine, human eye is difficult to feel its existence, the transverse conductance line electrode cell array of making like this and longitudinally conductor wire electrode unit array can be realized transparence, electrically conducting transparent line electrode mould 3 is attached on the transparency carrier 1 that is positioned at display screen 2 front ends, does not affect the showing transparency property of transparency carrier 1 to display screen 2 completely.
Described transverse conductance line 331 and the longitudinally shape of conductor wire 341 are waveform.Corrugated transverse conductance line 331 and longitudinally conductor wire 341 have increased capacity area, have further improved sensitivity.The shape of transverse conductance line 331 and longitudinally conductor wire 341 also can other can increase the figure of contact capacitance area for zigzag etc.
Described transparent base 31,32 is by PET, TAC or other organic transparent material moulding.
The thickness of described transparent base 31,32 is 20-200 μ m.Therefore, the integral thickness of electrically conducting transparent line electrode mould 3 as thin as a wafer, does not affect the integral thickness of touch-screen.
Darkening process is all passed through on described transverse conductance line 331 and the longitudinally surface of conductor wire 341.The transverse conductance line 331 of process Darkening process and longitudinally conductor wire 341 can absorb the metallic reflection light on conductor wire surface, increase penetrating rate, improve visual effect.Transverse conductance line 331 and longitudinally conductor wire 341 also can only carry out Darkening process to the part towards human eye vision face, can reduce costs like this.
In described transverse conductance line electrode cell array, the spacing of adjacent two transverse electrode unit 33 is 0.1-8mm, in described longitudinal conductor wire electrode unit array, the spacing of adjacent two longitudinal electrode unit 34 is 0.1-8mm, in described transverse electrode unit 33, the spacing of adjacent two transverse conductance lines 331 is 0.1-8mm, and in described longitudinal electrode unit 34, the spacing of adjacent two longitudinal conductor wires 341 is 0.1-8mm.
Described transparency carrier 1 is glass or transparent organic glass, and thickness is optional from 0.3-10mm, and transparency carrier 1 processing of can rising in value as requested, increases surperficial various optical functions etc. at for example strengthening, outward appearance printing.
Described electrically conducting transparent line electrode film 3 is attached on described transparency carrier 1, attaching bonding mode can be the general adhesive method such as optics pressure sensitive adhesive, UV glue, after molding bonded through defoaming treatment, access signal processor, by electrically conducting transparent line electrode film 3 towards display screen 2 exiting surfaces, and fit with display screen 2, complete the making of conductor wire membrane capacitance formula touch-screen.
Principle of work of the present invention: user is in the time of touch screen, owing to there being electric field in human body, between transverse conductance line electrode cell array on finger and electrically conducting transparent line electrode mould 3 and longitudinal conductor wire electrode unit array, form a coupling capacitance, in the time that finger touch is on electrically conducting transparent line electrode mould 3, because the electric capacity of contact changes, in transverse conductance line electrode cell array with longitudinally there will be the induction current that flows to contact in conductor wire electrode unit array, thereby calculate faradic power and accurately calculate the position of contact by signal processor.
Claims (1)
1. dual-layer, single-sided conductor wire membrane capacitance formula touch-screen, it comprises transparency carrier and display screen, transparency carrier is positioned at the front end of display screen, it is characterized in that: on described transparency carrier, be pasted with electrically conducting transparent line electrode film, described electrically conducting transparent line electrode film is made up of two transparent bases bonded to each other, the surface of upper strata transparent base is provided with transverse conductance line electrode cell array, the bottom surface of lower floor's transparent base is provided with longitudinal conductor wire electrode unit array, described transverse conductance line electrode cell array is made up of two transverse electrode unit that are parallel to each other above, described longitudinal conductor wire electrode unit array is made up of two longitudinal electrode unit that are parallel to each other above, described transverse electrode unit is made up of two more parallels and the transverse conductance line that is arranged in parallel, and described longitudinal electrode unit is made up of two more parallels and longitudinal conductor wire of being arranged in parallel, described transverse conductance line and longitudinally conductor wire are all by conductive material etch-forming or printing moulding, the lead end of described transverse electrode unit and the lead end of longitudinal electrode unit are all connected to signal processor,
Described conductive material is copper, aluminium, gold, silver or conductive carbon paste; Described transverse conductance line and the longitudinally live width of conductor wire are 3-100 μ m, and thickness is 2-10 μ m; The shape of described transverse conductance line and the longitudinally shape of conductor wire are waveform; Described transparent base is by PET or TAC forming materials; The thickness of described transparent base is 20-200 μ m; Darkening process is all passed through on described transverse conductance line and the longitudinally surface of conductor wire; In described transverse conductance line electrode cell array, the spacing of adjacent two transverse electrode unit is 0.1-8mm, in described longitudinal conductor wire electrode unit array, the spacing of adjacent two longitudinal electrode unit is 0.1-8mm, in described transverse electrode unit, the spacing of adjacent two transverse conductance lines is 0.1-8mm, and in described longitudinal electrode unit, the spacing of adjacent two longitudinal conductor wires is 0.1-8mm; Described transparency carrier is glass or transparent organic glass, and the thickness of transparency carrier is 0.3-10mm.
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| CN201310301508.0A CN103412692B (en) | 2013-07-17 | 2013-07-17 | Double-layer single-face wire film capacitive touch screen |
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| CN201310301508.0A CN103412692B (en) | 2013-07-17 | 2013-07-17 | Double-layer single-face wire film capacitive touch screen |
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| CN103412692B true CN103412692B (en) | 2014-07-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103824379B (en) * | 2014-03-03 | 2016-02-03 | 欧浦登(福建)光学有限公司 | The method of ATM multiple point touching screenshotss is realized based on conductor wire membrane capacitance screen |
| CN103853412A (en) * | 2014-03-14 | 2014-06-11 | 欧浦登（顺昌）光学有限公司 | Capacitive touch screen of post double-layer single-sided metal electrode array |
| CN103914202A (en) * | 2014-04-24 | 2014-07-09 | 深圳秋田微电子有限公司 | Capacitive touch screen structure suitable for two-layer cabling |
| CN105446558B (en) * | 2014-08-27 | 2019-06-28 | 欧浦登（顺昌）光学有限公司 | A kind of capacitive touch screen and manufacturing method of dual-layer, single-sided conductor wire electrode film |
| CN107102774A (en) * | 2017-05-04 | 2017-08-29 | 重庆市大渃科技有限公司 | Novel capacitance type touch screen and its production method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261379A (en) * | 2008-02-01 | 2008-09-10 | 信利半导体有限公司 | Capacitance type touch screen and touch display devices containing the touch screen |
| CN202600671U (en) * | 2012-05-25 | 2012-12-12 | 张仁贵 | Novel projected capacitive touch screen |
| CN203338334U (en) * | 2013-07-17 | 2013-12-11 | 欧浦登（顺昌）光学有限公司 | Double-layer single-face conducting line film capacitive touch screen |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261379A (en) * | 2008-02-01 | 2008-09-10 | 信利半导体有限公司 | Capacitance type touch screen and touch display devices containing the touch screen |
| CN202600671U (en) * | 2012-05-25 | 2012-12-12 | 张仁贵 | Novel projected capacitive touch screen |
| CN203338334U (en) * | 2013-07-17 | 2013-12-11 | 欧浦登（顺昌）光学有限公司 | Double-layer single-face conducting line film capacitive touch screen |
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