CN103176677A - Touch screen conductive structure and manufacturing method - Google Patents
Touch screen conductive structure and manufacturing method Download PDFInfo
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- CN103176677A CN103176677A CN2013100717679A CN201310071767A CN103176677A CN 103176677 A CN103176677 A CN 103176677A CN 2013100717679 A CN2013100717679 A CN 2013100717679A CN 201310071767 A CN201310071767 A CN 201310071767A CN 103176677 A CN103176677 A CN 103176677A
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Abstract
Provided is a touch screen conductive structure. A first direction grid conductive path line and a second direction grid conductive path line are arranged on the same base material, wherein the first direction grid conductive path line and the second direction grid conductive path line are not parallel with each other. The second direction grid conductive path line breaks off at an intersection position of the first direction grid conductive path line and the second direction grid conductive path line, and therefore grid conductive path lines of the two directions are enabled not to be in a breakover mode. A first bridging lead wire and a second bridging lead wire are arranged at side ends of the second direction grid conductive path line; the first direction grid conductive path line is provided with an insulating layer; a conducting layer is arranged on the insulating layer to connect the first bridging lead wire and the second bridging lead wire; and the first bridging lead wire and the second bridging lead wire are enabled to be in a breakover mode. Due to the fact that the first direction grid conductive path line and the second direction grid conductive path line are arranged on the same base material, the production efficiency of a touch screen can be improved. The invention further provides a manufacturing method of the touch screen conductive structure.
Description
Technical field
The present invention relates to the touch screen technology field, particularly relate to a kind of touch-screen conductive structure and method for making.
Background technology
Touch-screen (touch screen) is called again " touch screen ", " contact panel ", it is a kind of induction type liquid crystal display systems that receives the input signals such as contact, can be in order to the push button panel of dessert machine tool formula, and produce lively visual and sound effects by liquid crystal display picture.Touch-screen as a kind of up-to-date computer input apparatus, is simple, convenient, the most natural present a kind of man-machine interaction mode.
The conductive pattern material of capacitive touch screen comprises the metal grill trace that is comprised of two groups of conductive traces.Traditional way is to allow one group of metal grill trace that is parallel to each other wherein arrange along the X-axis of two-dimensional coordinate, and the metal grill trace that another group is parallel to each other is arranged along the Y-axis of two-dimensional coordinate.Two groups of metal grill traces lay respectively at above two-layer different base material, then two-layer base material contraposition are stitched together.This conductive structure can reduce the production efficiency of touch-screen.
Summary of the invention
Based on this, be necessary to provide a kind of touch-screen conductive structure and method for making that improves touch-screen production efficiency.
A kind of touch-screen conductive structure, comprise the first direction grid conductive trace and the second direction grid conductive trace that are arranged at same base material, described first direction grid conductive trace and second direction grid conductive trace are not parallel to each other, and described second direction grid conductive trace is interrupting with described first direction grid conductive trace intersection, make described second direction grid conductive trace not with the conducting of described first direction grid conductive trace; Described touch-screen conductive structure also comprises: the first bridging conductor and the second bridging conductor are positioned at the side of described second direction grid conductive trace, and are distributed in described first direction grid conductive trace both sides; Insulation course is arranged on described first direction grid conductive trace; Conductive layer is arranged on described insulation course, and connects described the first bridging conductor and the second bridging conductor.
In embodiment, the width of described the first bridging conductor and the second bridging conductor is 1 micron to 10 microns therein.
In embodiment, the upper surface of described insulation course is the rounding off curved surface therein.
In embodiment, described insulation course is the transparent insulation enamelled coating therein.
In embodiment, described conductive layer is metal powder layer therein.
In embodiment, the width of described metal powder layer is 10 microns to 20 microns therein.
A kind of touch-screen conductive structure method for making comprises the following steps:
Form first direction grid conductive trace and second direction grid conductive trace on base material; Described first direction grid conductive trace and second direction grid conductive trace are not parallel to each other, and described second direction grid conductive trace is interrupting with described first direction grid conductive trace intersection, make described second direction grid conductive trace not with the conducting of described first direction grid conductive trace;
Form the first bridging conductor and the second bridging conductor at the side of described second direction grid conductive trace, described the first bridging conductor and the second bridging conductor are distributed in described first direction grid conductive trace both sides;
Form insulation course on described first direction grid conductive trace;
Form conductive layer on described insulation course, described conductive layer connects described the first bridging conductor and the second bridging conductor.
In embodiment, described step forming insulation course on described first direction grid conductive trace is specially: the clear insulating varnish inkjet printing on described first direction grid conductive trace, is formed described insulation course therein.
In embodiment, described step forming conductive layer on described insulation course is specially: the metal powder inkjet printing on described insulation course, is formed described conductive layer therein.
In embodiment, described the first bridging conductor, the second bridging conductor and described first direction grid conductive trace and second direction grid conductive trace form simultaneously therein.
Above-mentioned touch-screen conductive structure, at same base material, first direction grid conductive trace and second direction grid conductive trace are set, first direction grid conductive trace and second direction grid conductive trace are not parallel to each other, and second direction grid conductive trace is interrupting with first direction grid conductive trace intersection, make second direction grid conductive trace not with the conducting of first direction grid conductive trace.By the side at second direction grid conductive trace, the first bridging conductor and the second bridging conductor are set, on first direction grid conductive trace, insulation course is set, and conductive layer is set on insulation course connects the first bridging conductor and the second bridging conductor, make the first bridging conductor and the second bridging conductor conducting.By first direction grid conductive trace and second direction grid conductive trace are arranged at same base material, improved touch-screen production efficiency, reduced production cost.
Description of drawings
Fig. 1 is the structural drawing of touch-screen conductive structure in an embodiment;
Fig. 2 is the amplification assumption diagram of touch-screen conductive structure in an embodiment;
Fig. 3 is the process flow diagram of touch-screen conductive structure method for making in an embodiment.
Embodiment
The conductive pattern material of capacitive touch screen comprises the metal grill trace that is comprised of two groups of conductive traces, and the metal grill trace refers to by the thread cancellated wire of metal.Traditional way is to allow one group of metal grill trace that is parallel to each other wherein arrange along the X-axis of two-dimensional coordinate, and the metal grill trace that another group is parallel to each other is arranged along the Y-axis of two-dimensional coordinate.Two groups of metal grill traces lay respectively at above two-layer different base material, then two-layer base material contraposition are stitched together.
The present invention is arranged at same base material with the grid conductive trace of two different directions, has improved touch-screen production efficiency.Because the grid conductive trace is spliced to form by metal wire, and the width of metal wire is generally 1 to 5 micron, and the spacing between metal wire and metal wire is generally 300 to 500 microns.By the side at second direction grid conductive trace, the first bridging conductor and the second bridging conductor are set, on first direction grid conductive trace, insulation course is set, and conductive layer is set on insulation course connects the first bridging conductor and the second bridging conductor, make the first bridging conductor and the second bridging conductor conducting, when avoiding the second direction grid conductive trace with the conductive layer disconnecting, occur that conductive layer can't be connected on metal wire and the situation that is connected to the white space between metal wire.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
The invention provides a kind of touch-screen conductive structure, as shown in Figure 1, comprise first direction grid conductive trace 110 and second direction grid conductive trace 120, the first bridging conductor 122, the second bridging conductor 124, insulation course 130 and the conductive layer 132 that is arranged at same base material.
The first grid conductive trace 110 and second direction grid conductive trace 120 are not parallel to each other, and second direction grid conductive trace 120 is interrupting with first direction grid conductive trace 110 intersections, make second direction grid conductive trace 120 not with 110 conductings of first direction grid conductive trace; The first bridging conductor 122 and the second bridging conductor 124 are positioned at the side of second direction grid conductive trace 120, and are distributed in first direction grid conductive trace 110 both sides; Insulation course 130 is arranged on first direction grid conductive trace 110; Conductive layer 132 is arranged on insulation course 130, and connects the first bridging conductor 122 and the second bridging conductor 124.
Wherein, base material is transparent, can be by glass, PET(Polyethylene terephthalate, polyethylene terephthalate), PC(Polycarbonate, polycarbonate) or PMMA(polymethylmethacrylate, polymethylmethacrylate) etc. material is made, and the material of first direction grid conductive trace 110, second direction grid conductive trace 120, the first bridging conductor 122, the second bridging conductor 124 and conductive layer 132 can be fine silver, silver-bearing copper composition, fine copper, nickel etc.In the present embodiment, first direction is vertical direction, and second direction is horizontal direction, in other embodiments, can be also that first direction is horizontal direction, second direction be vertical direction, in addition, first direction and second direction can be also off plumbs, are not parallel to each other as long as satisfy.
The first bridging conductor 122, the second bridging conductor 124 can be to form simultaneously with first direction grid conductive trace 110 and second direction grid conductive trace 120, can reduce manufacturing procedure, reduce production costs.In the present embodiment, the first bridging conductor 122 and the second bridging conductor 124 are arranged at the same side of second direction grid conductive trace 120 and the interruption position of close second direction grid conductive trace 120, be convenient to conductive layer 132 and the first bridging conductor 122 and be connected bridging conductor 124 and be connected, and shortened the length of conductive layer 132, saved cost.The first bridging conductor 122 and the second bridging conductor 124 can not be positioned at the same side of second direction grid conductive trace 120 in other embodiments, also can keep clear of the interruption position of second direction grid conductive trace 120, just can as long as satisfy to be positioned at the side of second direction grid conductive trace 120 and to be distributed in first direction grid conductive trace 110 both sides.
In the present embodiment insulation course 130 is between the interruption position of second direction grid conductive trace 120, can be convenient to equally conductive layer 132 and the first bridging conductor 122 and be connected bridging conductor 124 and be connected.Insulation course 130 can be the transparent insulation enamelled coating, prevents from affecting the optical property of touch-screen.The transparent insulation enamelled coating can be by inkjet printing on first direction grid conductive trace 110, and is simple to operate, quick.Insulation course 130 also can be for nontransparent in other embodiments, but must be noted that to limit the width of insulation course 130 in case affect the optical property of touch-screen.
Particularly, the width of the first bridging conductor 122 and the second bridging conductor 124 can be 1 micron to 10 microns, and the width of conductive layer 132 can be 10 microns to 20 microns.Can facilitate conductive layer 132 and the first bridging conductor 122 and be connected bridging conductor 124 and be connected, the width that also can avoid the first bridging conductor 122, the second bridging conductor 124 and conductive layer 132 simultaneously is excessive and affect the optical property of touch-screen.
The upper surface of insulation course 130 can be the rounding off curved surface, as shown in Figure 2, in the present embodiment, the upper surface of insulation course 130 is parabola, can make the upper surface of insulation course 130 round and smooth without catastrophe point, on insulation course 130 during the inkjet printing metal powder, make metal powder easily form line, can avoid the situation that causes metal powder layer easily to disconnect due to the difference in height between insulation course 130 surfaces and the first bridging conductor 122 and the second bridging conductor 124.
Above-mentioned touch-screen conductive structure, at same base material, first direction grid conductive trace 110 and second direction grid conductive trace 120 are set, first direction grid conductive trace 110 and second direction grid conductive trace 120 are not parallel to each other, and second direction grid conductive trace 120 is interrupting with first direction grid conductive trace 110 intersections, make second direction grid conductive trace 120 not with 110 conductings of first direction grid conductive trace.By the side at second direction grid conductive trace 120, the first bridging conductor 122 and the second bridging conductor 124 are set, on first direction grid conductive trace 110, insulation course 130 is set, and conductive layer 132 is set on insulation course 130 connects the first bridging conductor 122 and the second bridging conductor 124, make the first bridging conductor 122 and the second bridging conductor 124 conductings, when having avoided using the second direction grid conductive trace 120 of conductive layer 132 disconnectings, conductive layer 132 is connected to the white space between metal wire on second direction grid conductive trace 120.By first direction grid conductive trace 110 and second direction grid conductive trace 120 are arranged at same base material, can improve the production efficiency of touch-screen, reduced production cost.
In addition, the present invention also provides a kind of touch-screen conductive structure method for making, as shown in Figure 3, comprises the following steps:
Step S110: form first direction grid conductive trace and second direction grid conductive trace on base material.
Base material is transparent, can be by glass, PET(Polyethylene terephthalate, polyethylene terephthalate), PC(Polycarbonate, polycarbonate) or PMMA(polymethylmethacrylate, polymethylmethacrylate) etc. material make.
First direction grid conductive trace and second direction grid conductive trace can be formed on same base material simultaneously, and first direction grid conductive trace and second direction grid conductive trace are not parallel to each other, second direction grid conductive trace is interrupting with first direction grid conductive trace intersection, make second direction grid conductive trace not with the conducting of first direction grid conductive trace.
The material of first direction grid conductive trace and second direction grid conductive trace can be fine silver, silver-bearing copper composition, fine copper, nickel etc.In the present embodiment, first direction is vertical direction, and second direction is horizontal direction, in other embodiments, can be also that first direction is horizontal direction, second direction be vertical direction, in addition, first direction and second direction can be also off plumbs, are not parallel to each other as long as satisfy.
Step S120: the side at second direction grid conductive trace forms the first bridging conductor and the second bridging conductor.
The first bridging conductor and the second bridging conductor are positioned at the side of second direction grid conductive trace, and are distributed in first direction grid conductive trace both sides.The material of same the first bridging conductor and the second bridging conductor can be fine silver, silver-bearing copper composition, fine copper, nickel etc.The first bridging conductor, the second bridging conductor can be to form simultaneously with first direction grid conductive trace and second direction grid conductive trace, can reduce manufacturing procedure, reduce production costs.
In the present embodiment, the first bridging conductor and the second bridging conductor are formed at the same side of second direction grid conductive trace and the interruption position of close second direction grid conductive trace, be convenient to conductive layer and the first bridging conductor and be connected bridging conductor and be connected, and shortened the length of conductive layer, saved cost.The first bridging conductor and the second bridging conductor can not be positioned at the same side of second direction grid conductive trace in other embodiments, also can keep clear of the interruption position of second direction grid conductive trace, just can as long as satisfy to be positioned at the side of second direction grid conductive trace and to be distributed in first direction grid conductive trace both sides.
Step S130: form insulation course on first direction grid conductive trace.
In the present embodiment, insulation course is formed between the interruption position of second direction grid conductive trace, can be convenient to equally conductive layer and the first bridging conductor and be connected bridging conductor and be connected.Insulation course can be the transparent insulation enamelled coating, prevents from affecting the optical property of touch-screen.Step S130 specifically can be: the clear insulating varnish inkjet printing on first direction grid conductive trace, is formed insulation course.By inkjet printing, the transparent insulation enamelled coating is printed on first direction grid conductive trace, simple to operate, quick.Insulation course also can be for nontransparent in other embodiments, but must be noted that to limit the width of insulation course in case affect the optical property of touch-screen.
Step S140: form conductive layer on insulation course.
Conductive layer connects the first bridging conductor and the second bridging conductor.The material of conductive layer can be fine silver, silver-bearing copper composition, fine copper, nickel etc.Conductive layer can be connected by laser alignment when bridging conductor is connected with being connected with the first bridging conductor, improve connection speed and accuracy.Conductive layer can be wire, can be also metal powder layer, and in the present embodiment, conductive layer is metal powder layer, and step S140 specifically can be: the metal powder inkjet printing on insulation course, is formed conductive layer.By inkjet printing, metal powder is printed on insulation course equally, simple to operate, quick.
Particularly, the width of the first bridging conductor and the second bridging conductor can be designed to 1 micron to 10 microns, also the width design of conductive layer can be become 10 microns to 20 microns.Can make conductive layer and the first bridging conductor and be connected bridging conductor and be connected more conveniently, the width that also can avoid the first bridging conductor, the second bridging conductor and conductive layer simultaneously is excessive and affect the optical property of touch-screen.
The upper surface of insulation course can also be designed to the rounding off curved surface, as parabola, can make the upper surface of insulation course round and smooth without catastrophe point, on insulation course during the inkjet printing metal powder, make metal powder easily form line, can avoid the situation that causes metal powder layer easily to disconnect due to the difference in height between surface of insulating layer and the first bridging conductor and the second bridging conductor.
Above-mentioned touch-screen conductive structure method for making, form first direction grid conductive trace and second direction grid conductive trace at same base material, first direction grid conductive trace and second direction grid conductive trace are not parallel to each other, and second direction grid conductive trace is interrupting with first direction grid conductive trace intersection, make second direction grid conductive trace not with the conducting of first direction grid conductive trace.By the side at second direction grid conductive trace, the first bridging conductor and the second bridging conductor are set, on first direction grid conductive trace, insulation course is set, and conductive layer is set on insulation course connects the first bridging conductor and the second bridging conductor, make the first bridging conductor and the second bridging conductor conducting, when having avoided using the grid conductive trace of conductive layer disconnecting, conductive layer is connected to the white space between metal wire on the grid conductive trace.By first direction grid conductive trace and second direction grid conductive trace are arranged at same base material, can improve the production efficiency of touch-screen, reduced production cost.
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 the scope of the claims 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 (10)
1. touch-screen conductive structure, it is characterized in that, comprise the first direction grid conductive trace and the second direction grid conductive trace that are arranged at same base material, described first direction grid conductive trace and second direction grid conductive trace are not parallel to each other, and described second direction grid conductive trace is interrupting with described first direction grid conductive trace intersection, make described second direction grid conductive trace not with the conducting of described first direction grid conductive trace; Described touch-screen conductive structure also comprises:
The first bridging conductor and the second bridging conductor are positioned at the side of described second direction grid conductive trace, and are distributed in described first direction grid conductive trace both sides;
Insulation course is arranged on described first direction grid conductive trace;
Conductive layer is arranged on described insulation course, and connects described the first bridging conductor and the second bridging conductor.
2. touch-screen conductive structure according to claim 1, is characterized in that, the width of described the first bridging conductor and the second bridging conductor is 1 micron to 10 microns.
3. touch-screen conductive structure according to claim 1, is characterized in that, the upper surface of described insulation course is the rounding off curved surface.
4. touch-screen conductive structure according to claim 1, is characterized in that, described insulation course is the transparent insulation enamelled coating.
5. touch-screen conductive structure according to claim 1, is characterized in that, described conductive layer is metal powder layer.
6. touch-screen conductive structure according to claim 5, is characterized in that, the width of described metal powder layer is 10 microns to 20 microns.
7. a touch-screen conductive structure method for making, is characterized in that, comprises the following steps:
Form first direction grid conductive trace and second direction grid conductive trace on base material; Described first direction grid conductive trace and second direction grid conductive trace are not parallel to each other, and described second direction grid conductive trace is interrupting with described first direction grid conductive trace intersection, make described second direction grid conductive trace not with the conducting of described first direction grid conductive trace;
Form the first bridging conductor and the second bridging conductor at the side of described second direction grid conductive trace, described the first bridging conductor and the second bridging conductor are distributed in described first direction grid conductive trace both sides;
Form insulation course on described first direction grid conductive trace;
Form conductive layer on described insulation course, described conductive layer connects described the first bridging conductor and the second bridging conductor.
8. touch-screen conductive structure method for making according to claim 7, it is characterized in that, described step forming insulation course on described first direction grid conductive trace is specially: the clear insulating varnish inkjet printing on described first direction grid conductive trace, is formed described insulation course.
9. touch-screen conductive structure method for making according to claim 7, is characterized in that, described step forming conductive layer on described insulation course is specially: the metal powder inkjet printing on described insulation course, is formed described conductive layer.
10. touch-screen conductive structure method for making according to claim 7, is characterized in that, described the first bridging conductor, the second bridging conductor and described first direction grid conductive trace and second direction grid conductive trace form simultaneously.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596800A (en) * | 2020-05-22 | 2020-08-28 | Oppo广东移动通信有限公司 | Touch module, touch display screen, manufacturing method of touch display screen and electronic equipment |
| CN114995683A (en) * | 2022-08-04 | 2022-09-02 | 湖南兴威新材料有限公司 | Single-sided capacitive touch screen and manufacturing method thereof |
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| CN202150102U (en) * | 2011-07-27 | 2012-02-22 | 昆山维信诺显示技术有限公司 | Capacitive touch sensitive device |
| CN102830867A (en) * | 2011-06-14 | 2012-12-19 | 瀚宇彩晶股份有限公司 | Touch control display device |
| CN202748763U (en) * | 2012-07-13 | 2013-02-20 | 宸鸿光电科技股份有限公司 | Conductive pattern structure of capacitance type touch panel |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830867A (en) * | 2011-06-14 | 2012-12-19 | 瀚宇彩晶股份有限公司 | Touch control display device |
| CN202150102U (en) * | 2011-07-27 | 2012-02-22 | 昆山维信诺显示技术有限公司 | Capacitive touch sensitive device |
| CN202748763U (en) * | 2012-07-13 | 2013-02-20 | 宸鸿光电科技股份有限公司 | Conductive pattern structure of capacitance type touch panel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596800A (en) * | 2020-05-22 | 2020-08-28 | Oppo广东移动通信有限公司 | Touch module, touch display screen, manufacturing method of touch display screen and electronic equipment |
| CN111596800B (en) * | 2020-05-22 | 2023-08-18 | Oppo广东移动通信有限公司 | Touch module, touch display screen, manufacturing method of touch module and touch display screen, and electronic equipment |
| CN114995683A (en) * | 2022-08-04 | 2022-09-02 | 湖南兴威新材料有限公司 | Single-sided capacitive touch screen and manufacturing method thereof |
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| CN103176677B (en) | 2014-06-18 |
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Effective date of registration: 20210408 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: 330000 Huang Jia Hu Road, Nanchang economic and Technological Development Zone, Nanchang, Jiangxi Patentee before: Nanchang OFilm Tech. Co.,Ltd. |