CN104637573A - Conductive film structure - Google Patents
Conductive film structure Download PDFInfo
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- CN104637573A CN104637573A CN201310573924.6A CN201310573924A CN104637573A CN 104637573 A CN104637573 A CN 104637573A CN 201310573924 A CN201310573924 A CN 201310573924A CN 104637573 A CN104637573 A CN 104637573A
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- thickness
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- conductive connection
- conductive
- eye pattern
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Abstract
The invention discloses comprising a base board and a conductive mesh pattern disposed on the base board. The conductive mesh pattern is provided with a plurality of wires and a plurality of conductive connective portions; the conductive connective portions connect the wires to form the conductive mesh pattern; the wires are of first thickness; the conductive connective portions are of second thickness; the first thickness is greater than the second thickness.
Description
Technical field
The present invention relates to a kind of conducting membrane structure, and particularly relate to a kind of conducting membrane structure with conductive mesh eye pattern.
Background technology
In touch sensing device main at present, indium tin oxide (ITO) film is mostly used to make electrically conducting transparent sensed layer.But, the manufacture craft temperature of indium and tin oxide film cannot reach too high, therefore its impedance cannot be down to very low, so when large-area indium and tin oxide film is applied to large-sized sensing apparatus, the impedance that large-area indium and tin oxide film produces can cannot be arranged in pairs or groups by the integrated circuit corresponding with it, and high surface resistance can make the sensing sensitivity of sensing apparatus reduce.Moreover indium and tin oxide film enbrittles, easily chipping when bending, not only bad impact is had on its conductivity, be also not suitable for being applied to the soft device with bendability.In addition, indium is exotic material, and price is high, is also unfavorable for the management and control of cost.
Therefore, how providing a kind of conductive film with the touch sensing device of superperformance, is one of problem that relevant dealer makes great efforts.
Summary of the invention
Content of the present invention has about a kind of conducting membrane structure.In the conducting membrane structure of embodiment, the thickness via the wire of conductive mesh eye pattern is different from the design of the thickness of conductive connection part, makes wire and conductive connection part have different light transmittances and reflectivity, and then improves overall visuality.
According to an embodiment of content of the present invention, a kind of conducting membrane structure is proposed.Conducting membrane structure comprises a substrate and a conductive mesh eye pattern (metal mesh).Conductive mesh eye pattern is arranged on substrate.Conductive mesh eye pattern includes many wires and multiple conductive connection part, and wherein these many wires are connected to each other and form this conductive mesh eye pattern by the plurality of conductive connection part.Wire has one first thickness, and conductive connection part has one second thickness, and the first thickness is different from the second thickness.
According to another embodiment of content of the present invention, a kind of contact panel is proposed.Contact panel comprises a substrate and a touch control electrode.Touch control electrode is arranged on substrate.Touch control electrode is formed by a conductive mesh eye pattern, and conductive mesh eye pattern comprises many wires and multiple conductive connection part, and wherein many wires are connected to each other and form conductive mesh eye pattern by multiple conductive connection part.Wire has one first thickness, and conductive connection part has one second thickness, and the first thickness is different from the second thickness.
In order to have better understanding to above-mentioned and other aspect of the present invention, preferred embodiment cited below particularly, and coordinating appended accompanying drawing, being described in detail below:
Accompanying drawing explanation
Fig. 1 is the top view of the conducting membrane structure of content one embodiment of the present invention;
Fig. 2 A is the local top view of the conducting membrane structure of content one embodiment of the present invention;
Fig. 2 B is the generalized section of the hatching 2B-2B ' along Fig. 2 A.
Symbol description
10: conducting membrane structure
100: substrate
200: conductive mesh eye pattern
210: wire
230: conductive connection part
T1: the first thickness
T2: the second thickness
W1: the first width
W2: the second width
2B-2B ': hatching
Embodiment
According to the embodiment of content of the present invention, in conducting membrane structure, thickness via the wire of conductive mesh eye pattern is different from the design of the thickness of conductive connection part, makes wire and conductive connection part have different light transmittances and reflectivity, and then improves overall visuality.The embodiment of content of the present invention is described in detail referring to appended accompanying drawing.Label identical in accompanying drawing is in order to indicate same or similar part.It is noted that accompanying drawing has simplified the content in order to clearly demonstrating embodiment, the thin portion structure that embodiment proposes has been only the use illustrated, not does limit to content of the present invention for the scope of protection.Have usually know the knowledgeable when can according to reality implement aspect need those structures are modified or are changed.
Fig. 1 illustrates the top view of the conducting membrane structure 10 of content one embodiment of the present invention, and Fig. 2 A illustrates the local top view of the conducting membrane structure 10 of content one embodiment of the present invention, and Fig. 2 B illustrates the generalized section of the hatching 2B-2B ' along Fig. 2 A.Please refer to Fig. 1 ~ Fig. 2 B, conducting membrane structure 10 comprises substrate 100 and conductive mesh eye pattern (metal mesh) 200.Conductive mesh eye pattern 200 is arranged on substrate 100, and conductive mesh eye pattern 200 comprises many wires 210 and multiple conductive connection part 230, and wherein many wires 210 are connected to each other and form this conductive mesh eye pattern 200 by multiple conductive connection part 230.Wire 210 has the first thickness T1, and conductive connection part 230 has the second thickness T2, and the first thickness T1 is different from the second thickness T2.Difference of thickness T1 and T2 both this, makes wire 210 and conductive connection part 230 have different light transmittances and reflectivity, and then improves overall visuality.It is noted that the dimension scale of the first thickness T1 in accompanying drawing and the second thickness T2 is not drawn according to actual product equal proportion, only in order to clearly demonstrate the content of embodiment, therefore not as the use of the protection range of limit content of the present invention.
In embodiment, conductive mesh eye pattern 200 can via be such as intaglio printing, the mode of gray-level mask or nano impression is made, and can adopts plane formula manufacture craft or volume to volume manufacture craft.
In one embodiment, as as shown in the top view of Fig. 2 A, probably because the development etching in manufacturing process is incomplete, make the unit are of conductive connection part 230 can be greater than the unit are of wire 210, and the second width W 2 of conductive connection part 230 can be greater than the first width W 1 of plain conductor 210, therefore conductive connection part 230 can amass because have larger light reflection surface and have visual problem.In one embodiment, the width of wire 210 can be 1 ~ 20 micron (μm), is preferably 3 ~ 10 microns (μm).The width of conductive connection part 230 is at least greater than the √ 2 times of the width of wire 210, and the flat shape of conductive connection part 230 is the rectangle of an edge indent haply.Second thickness T2 of conductive connection part 230 is less than the first thickness T1 of plain conductor 210 by the embodiment of content of the present invention, except the light transmittance of the entirety of conductive mesh eye pattern 200 can be improved, also can reduce the reflectivity of conductive mesh eye pattern 200 simultaneously, make the colour developing of conductive mesh eye pattern 200 less obvious, and then improve the problem with the visuality at conductive connection part 200 place of larger width.In other words, comprehensively consistent and have the conductive mesh eye pattern of large area conductive connection part compared to integral thickness (thickness of conductive connection part 230 and the thickness of wire 210), the aperture opening ratio that large area conductive connection part causes declines, light transmittance declines and the problem of high reflectance all can obtain and significantly improves.
It should be noted that and be less than in the embodiment of the first thickness T1 of wire 210 at the second thickness T2 of conductive connection part 230, the second thickness T2 of conductive connection part 230 also should have a minimum value, not can unrestrictedly reduce.When the second thickness T2 of conductive connection part 230 is less than the first thickness T1 of wire 210, conductive connection part 230 still must be possessed certain thickness and make wire netting 200 can have predetermined conductivity.
In one embodiment, the first thickness T1 of wire 210 is such as between the scope of 2:1 ~ 50:1 relative to the ratio of the second thickness T2 of conductive connection part 230.For example, when the first thickness T1 of wire 210 is 200 nanometers (nm), then the second thickness T2 of conductive connection part 230 can be 4 ~ 100 nanometers (nm).During right practical application, the number range of the first thickness T1 and the second thickness T2 is also looked application feature and is done suitably to select, and is not limited with aforementioned number range.
In one embodiment, the second thickness T2 of conductive connection part 230 is such as 5 ~ 150 nanometers (nm).
In one embodiment, the difference of the first thickness T1 of wire 210 and the second thickness T2 of conductive connection part 230 is such as 50 ~ 2000 nanometers (nm).In another embodiment, for the material of conductive mesh eye pattern 200 for silver metal, when the first thickness T1 of wire 210 is 200 nanometers, the second thickness T2 of conductive connection part 230 can be such as 20 ~ 100 nanometers, and the difference both this is then 100 ~ 180 nanometers.During right practical application, the material of conductive mesh eye pattern 200, the number range of the first thickness T1 and the second thickness T2 are also looked application feature and are done suitably to select, and are not limited with aforementioned material and number range.
In embodiment, the material of conductive mesh eye pattern 200 is conductive metal.For example, the material of wire netting 200 can comprise silver, copper, aluminium and molybdenum etc. at least one of them.
In embodiment, substrate 100 is such as flexible substrate or glass substrate.
In one embodiment, the conducting membrane structure described in content of the present invention such as can be applicable to contact panel, and contact panel comprises a substrate and a touch control electrode, and touch control electrode is arranged on substrate.In embodiment, touch control electrode is such as formed by aforesaid conductive mesh eye pattern 200, and the wire of conductive mesh eye pattern 200 has one first thickness, and the conductive connection part of conductive mesh eye pattern 200 has one second thickness, and the first thickness is different from the second thickness.
Be described further with regard to embodiment below.Below list the material of the conductive mesh eye pattern 200 of an embodiment, size and analog result.But following embodiment is only the use illustrated, and should not be interpreted as the restriction of Content Implementation of the present invention.
Table 1 lists the material using silver metal as conductive mesh eye pattern 200, and the second thickness T2 making impedance maintenance definite value obtain is relative to the analog result of reflectivity.In embodiment as shown in table 1, the first width W 1 of wire 210 is 8 microns (μm), and the second width W 2 of cross section 230 is 36 microns, and the first thickness T1 of wire 210 is 200 nanometers.
Table 1
| Second thickness T2 (nanometer) | Reflectivity (%) |
| 200 | 98.17 |
| 150 | 98.17 |
| 120 | 98.15 |
| 100 | 98.07 |
| 80 | 97.74 |
| 60 | 96.29 |
| 50 | 94.23 |
| 40 | 89.91 |
| 30 | 80.89 |
| 20 | 62.64 |
As shown in table 1, when the second thickness T2 of conductive connection part 230 declines, reflectivity also can decline.For example, when the thickness of conductive connection part 230 drops to 20 nanometers by 200 nanometers, reflectivity can decline to a great extent to 62.64% by 98.17%.In other words, according to the analog result described in table 1, in embodiment, the material of conductive mesh eye pattern 200 is silver, and the second thickness T2 is such as 20-100 nanometer, then conductive connection part 230 all has the reflectivity lower than wire 210.In another embodiment, the material of conductive mesh eye pattern 200 is copper, and the first thickness T1 is such as 200 nanometers, and the second thickness T2 is such as 30-80 nanometer, then conductive connection part 230 can have the reflectivity lower than wire 210.During right practical application, the number range of the second thickness T2 is also looked application feature and is done suitably to select, and such as, according to the first thickness T1 that material and the wire 210 of conductive mesh eye pattern 200 adopt, is not limited with aforementioned value.
Moreover make impedance maintain definite value equally, area and the thickness of conducting metal are approximately inversely proportional to.For example, when the material of conductive mesh eye pattern 200 is silver, first width W 1 of wire 210 is 8 microns, second width W 2 of conductive connection part 230 is 36 microns, first thickness T1 of wire 210 is 200 nanometers, according to calculating, area is the second thickness T2 of the conductive connection part 230 of 36x36 square micron when dropping to about 20 nanometer, and can have with area is the impedance that the plain conductor 210 of 8 × 8 square microns mates.
In sum, in the manufacturing process of conductive mesh eye pattern 200, although conductive connection part 230 may be made to have larger area compared to wire 210 because the development etching in manufacture craft is incomplete, but via changing the second thickness T2 of conductive connection part 230, conductive connection part 230 still can be made to have the impedance of mating with wire 210, and reach and there is good light transmittance and antiradar reflectivity, and then there is good visuality.
In sum, although disclose the present invention in conjunction with above preferred embodiment, however itself and be not used to limit the present invention.Be familiar with this operator in the technical field of the invention, without departing from the spirit and scope of the present invention, can be used for a variety of modifications and variations.Therefore, what protection scope of the present invention should define with the claim of enclosing is as the criterion.
Claims (9)
1. a conducting membrane structure, comprising:
Substrate; And
Conductive mesh eye pattern (conductive mesh pattern), be arranged on this substrate, it comprises many wires and multiple conductive connection part, and wherein these many wires are connected to each other and form this conductive mesh eye pattern by the plurality of conductive connection part,
Wherein those wires have the first thickness, and those conductive connection parts have the second thickness, and this first thickness is different from this second thickness.
2. conducting membrane structure as claimed in claim 1, wherein this first thickness is greater than this second thickness.
3. conducting membrane structure as claimed in claim 2, wherein this first thickness is 2:1 ~ 50:1 relative to the ratio of this second thickness and is not equal to 1.
4. conducting membrane structure as claimed in claim 1, wherein the difference of this first thickness and this second thickness is 50 ~ 2000 nanometers (nm).
5. conducting membrane structure as claimed in claim 1, wherein this second thickness is 20 ~ 2000 nanometers (nm).
6. conducting membrane structure as claimed in claim 1, wherein the width of this wire is 1 ~ 20 micron (μm).
7. conducting membrane structure as claimed in claim 1, wherein the width of this conductive connection part is greater than the √ 2 times of the width of this wire.
8. conducting membrane structure as claimed in claim 1, wherein the flat shape of this conductive connection part is the rectangle of an edge indent haply.
9. a contact panel, comprising:
Substrate; And
Touch control electrode, be arranged on this substrate, wherein this touch control electrode is formed by a conductive mesh eye pattern, this conductive mesh eye pattern comprises many wires and multiple conductive connection part, wherein these many wires are connected to each other and form this conductive mesh eye pattern by the plurality of conductive connection part, wherein this wire has one first thickness, and this conductive connection part has one second thickness, and this first thickness is different from this second thickness.
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| CN201310573924.6A CN104637573B (en) | 2013-11-15 | 2013-11-15 | Conducting membrane structure |
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| CN201310573924.6A CN104637573B (en) | 2013-11-15 | 2013-11-15 | Conducting membrane structure |
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| CN104637573A true CN104637573A (en) | 2015-05-20 |
| CN104637573B CN104637573B (en) | 2017-01-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145001A (en) * | 2017-07-06 | 2017-09-08 | 京东方科技集团股份有限公司 | A kind of touch-control display panel and preparation method thereof, display device |
| CN107390965A (en) * | 2017-07-25 | 2017-11-24 | 业成科技（成都）有限公司 | Touch-control film and contact panel |
| WO2024174212A1 (en) * | 2023-02-24 | 2024-08-29 | 京东方科技集团股份有限公司 | Touch control substrate, design structure of touch control electrode layer, display panel, and display apparatus |
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|---|---|---|---|---|
| JP2003213971A (en) * | 2002-01-29 | 2003-07-30 | Asahi Steel Industry | Fence equipped with transparent plate |
| TW201232632A (en) * | 2010-11-19 | 2012-08-01 | Fujifilm Corp | Touch panel, method for manufacturing touch panel and conductive film |
| CN104246676A (en) * | 2012-06-07 | 2014-12-24 | 日东电工株式会社 | Touch panel member and manufacturing method therefor |
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2013
- 2013-11-15 CN CN201310573924.6A patent/CN104637573B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003213971A (en) * | 2002-01-29 | 2003-07-30 | Asahi Steel Industry | Fence equipped with transparent plate |
| TW201232632A (en) * | 2010-11-19 | 2012-08-01 | Fujifilm Corp | Touch panel, method for manufacturing touch panel and conductive film |
| CN104246676A (en) * | 2012-06-07 | 2014-12-24 | 日东电工株式会社 | Touch panel member and manufacturing method therefor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145001A (en) * | 2017-07-06 | 2017-09-08 | 京东方科技集团股份有限公司 | A kind of touch-control display panel and preparation method thereof, display device |
| CN107145001B (en) * | 2017-07-06 | 2020-03-27 | 京东方科技集团股份有限公司 | Touch display panel, manufacturing method thereof and display device |
| CN107390965A (en) * | 2017-07-25 | 2017-11-24 | 业成科技（成都）有限公司 | Touch-control film and contact panel |
| WO2024174212A1 (en) * | 2023-02-24 | 2024-08-29 | 京东方科技集团股份有限公司 | Touch control substrate, design structure of touch control electrode layer, display panel, and display apparatus |
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| CN104637573B (en) | 2017-01-04 |
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