CN101587407B - Capacitance touch screen and method for preparing the same - Google Patents
Capacitance touch screen and method for preparing the same Download PDFInfo
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- CN101587407B CN101587407B CN2009101081433A CN200910108143A CN101587407B CN 101587407 B CN101587407 B CN 101587407B CN 2009101081433 A CN2009101081433 A CN 2009101081433A CN 200910108143 A CN200910108143 A CN 200910108143A CN 101587407 B CN101587407 B CN 101587407B
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Abstract
Capacitance touch screen and method for preparing the same, the touch screen includes a substrate, two sets of wire transparent conductive films, an insulation film, and a low-resistance transparent conductive film, in two sets of wires, a first set of transparent conductive films are disposed continously, a second set of transparent conductive films are disposed sectionally by using the first setof transparent conductive films as intervals; the low-resistance transparent conductive film is attached onto the substrate sectionally corresponding to the second set of transparent conductive fims, the insulation film is covered on middle part of the low-resistance conductive film and adjacent substrate, the first set of transparent conductive films cross the low-resistance transparent conducti ve film and being attached onto the insulation film and substrate, the second set of transparent conductive films are covered on end of the low-resistance and the substrate to form a continous second set of wires. The method is used to produce low-resistance transparent conductive film, the first and second set of transparent conductive films on the substrate for implementing the touch screen structure. The invention avoids chromatic aberration of touch screen, reduces resistance of the second set of wires, improves visual effect of the touch screen, excludes electrical interference, and improves quality and performance of products.
Description
Technical field
The present invention relates to a kind of touch-screen, also relate to the manufacture method of this touch-screen, be specifically related to a kind of capacitive touch screen and manufacture method thereof.
Background technology
Capacitive touch screen comprises two groups of leads that intersect in length and breadth along directions X and Y direction, and there is following defective in existing capacitive touch screen harness wiring structure:
1, two groups of leads of directions X and Y direction are space crossed, in manufacturing process, need to make earlier one group of lead conducting film of bottom, make dielectric film then, make the one group of lead conducting film in upper strata again.Because the nesa coating of two groups of leads must be made respectively, can cause the color distortion of two-layer conducting film, reduce the product quality of touch-screen;
2, because touch-screen lacks shielding construction, touch-screen can't be got rid of the electrical Interference from display device, causes touch screen performance to be affected.
If 3 adopt metals to put up a bridge or the metal tunnel junction structure connects lead, can be because the extraneous reflection of light of metal pair touch-screen and to the blocking of display interior light influences the visual effect of touch-screen.
Summary of the invention
One of the technical problem to be solved in the present invention is, a kind of capacitive touch screen is provided, and overcomes the defective that there is aberration in existing capacitive touch screen.
Two of the technical problem to be solved in the present invention is, a kind of manufacture method of capacitive touch screen is provided, and overcomes the defective that there is aberration in existing capacitive touch screen.
The present invention solves the technical scheme that one of its technical matters adopts: construct a kind of capacitive touch screen, the nesa coating and the dielectric film of two groups of leads that comprise substrate, arrange at substrate upper edge X, Y direction, the nesa coating of first group of lead is provided with continuously in described two groups of leads, the nesa coating of second group of lead is the space segmentation setting with the nesa coating of described first group of lead; Described touch-screen also comprises the low resistance nesa coating that is provided with attached to segmentation on the described substrate corresponding to the nesa coating of described second group of lead, described dielectric film covers on the described substrate of this low resistance nesa coating middle part and vicinity, the nesa coating of described first group of lead across described low resistance nesa coating attached on described dielectric film and the described substrate, it is characterized in that the nesa coating that is positioned at described second group of lead of described first group of lead nesa coating both sides covers second group of continuous lead of formation on described low resistance nesa coating end and the described substrate.
In capacitive touch screen of the present invention, described low resistance nesa coating is one or more layers.
In capacitive touch screen of the present invention, described dielectric film is shaped as rectangle, square, circle or one of oval.
In capacitive touch screen of the present invention, comprise screen layer, described screen layer is for being provided with the nesa coating opposite side lip-deep one or more layers of transparent conductive film layer relative with dielectric film one side of described two groups of leads attached to described substrate, the layout area of the setting area of described screen layer and described first group of lead, second group of lead adapts.
In capacitive touch screen of the present invention, described screen layer is continuous transparent conductive film layer or the transparent conductive film layer that pattern is set.
In capacitive touch screen of the present invention, comprise the insulating protective layer that covers on the described screen layer and expose the local tie point of screen layer.
Two technical schemes that adopted that the present invention solves its technical matters are: a kind of manufacture method of capacitive touch screen comprises the steps:
S1, make the low resistance nesa coating, this low resistance nesa coating corresponding to the nesa coating segmentation of second group of lead attached on the substrate;
S2, making dielectric film, dielectric film cover on the substrate of low resistance nesa coating middle part and vicinity;
S3, while make on substrate along the nesa coating of two groups of leads of X, Y direction layout, the nesa coating of first group of lead is provided with continuously, the nesa coating of second group of lead is the space segmentation setting with the nesa coating of first group of lead, and the nesa coating that is positioned at second group of lead of first group of lead nesa coating both sides covers second group of continuous lead of formation on low resistance nesa coating end and the described substrate.
In the manufacture method of capacitive touch screen of the present invention, being included in described substrate is provided with on the nesa coating of the described two groups of leads opposite side surface relative with dielectric film one side, making is attached to the step of this lip-deep nesa coating screen layer, and the layout area of the setting area of this screen layer and described first group of lead, second group of lead adapts.
In the manufacture method of capacitive touch screen of the present invention, be included in and make the step that covers this screen layer and expose the insulating protective layer of the local tie point of screen layer on the described screen layer.
Implement capacitive touch screen of the present invention and manufacture method thereof, compared with the prior art, its beneficial effect is:
1. the transparent conductive film layer of two groups of leads can be made simultaneously, has avoided making the aberration that causes respectively, has improved the product quality of touch-screen;
2. the line resistance of low resistance transparent conductive film layer has reduced the line resistance of second group of lead much smaller than the line resistance of the transparent conductive film layer of second group of lead, improves the performance of touch-screen;
3. the low resistance nesa coating does not have the light reflex that metal bridging film causes, transmitance is good, does not block phenomenon, has improved the visual effect of touch-screen;
4. the low resistance nesa coating is lower than the cost of manufacture of metal bridging film, helps reducing the production cost of touch-screen;
5. owing to be provided with transparency conducting layer as screen layer, effectively get rid of electrical Interference, guarantee that touch screen performance is immune, improve touch screen performance from display device at substrate back.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural plan figure of the node of a kind of embodiment of capacitive touch screen of the present invention.
Fig. 2 is an A-A sectional view among Fig. 1.
Fig. 3 is the process flow diagram of a kind of embodiment of manufacture method of capacitive touch screen of the present invention.
Embodiment
As shown in Figure 1 and Figure 2, capacitive touch screen of the present invention comprise substrate 1, nesa coating, dielectric film 3 and the low resistance nesa coating 5 of two groups of leads arranging at substrate 1 upper edge X, Y direction.
The nesa coating 4 of first group of lead is provided with continuously in two groups of leads, and the nesa coating 2 of second group of lead is the space segmentation setting with the nesa coating 4 of first group of lead.
Attached on the substrate 1, i.e. metal bridging film 6 is provided with corresponding to every lead segmentation of second group of lead low resistance nesa coating 5 corresponding to nesa coating 2 segmentations of second group of lead.
The nesa coating 4 of first group of lead covers on dielectric film 4 and the substrate 1 across low resistance nesa coating 5.
The nesa coating 2 that is positioned at second group of lead of first group of lead nesa coating 4 both sides covers on the end of low resistance nesa coating 5 and the substrate 1 and constitutes second group of continuous lead.
The shape of dielectric film 3 can adopt and include but not limited to rectangle, square, circle or oval.
Above-mentioned low resistance nesa coating 5 can adopt one or more layers.Low resistance nesa coating and metal bridging film compare, and do not have to cause the light reflex, and transmitance is good, do not block phenomenon, improved the visual effect of touch-screen, the low resistance nesa coating is lower than the cost of manufacture of metal bridging film simultaneously, helps reducing the production cost of touch-screen.
As required, the width of low resistance nesa coating 5 can less than, be equal to or greater than the width of the nesa coating 2 of second group of lead.
In order to get rid of electrical Interference from display device, guarantee that touch screen performance is immune, capacitive touch screen of the present invention can be provided with screen layer 6.
As shown in Figure 2, screen layer 6 is provided with on the nesa coating 2,4 of the two groups of leads opposite side surface relative with dielectric film 3 one sides attached to substrate 1, adopts one or more layers of transparent conductive film layer.The layout area of the setting area of screen layer 6 and first group of lead and second group of lead adapts, and is promptly satisfying under the condition of shielding requirements, the zone of screen layer 6 can equal, less than or greater than the layout area of first group of lead and second group of lead.
For protection mask layer 6, the insulating protective layer (not shown) that covers screen layer 6 can be set, expose the local tie point of screen layer on the insulating protective layer, so that connect the lead-in wire of screen layer 6.
As Fig. 1, shown in Figure 3, the manufacture method of capacitive touch screen of the present invention comprises the steps:
The first step, make low resistance nesa coating 5, this low resistance nesa coating 5 corresponding to nesa coating 2 segmentations of second group of lead attached on the substrate 1.
Second step, make dielectric film 3, dielectric film 3 covers on the middle part and contiguous substrate 1 of low resistance nesa coating 5.
The 3rd step, while make on substrate 1 along the nesa coating 2,4 of two groups of leads of X, Y direction layout, the nesa coating 4 of first group of lead is provided with continuously, the nesa coating 2 of second group of lead is the space segmentation setting with the nesa coating 4 of first group of lead, and the nesa coating 2 that is positioned at second group of lead of first group of lead nesa coating 4 both sides covers on the end of low resistance nesa coating 5 and the substrate 1 and constitutes second group of continuous lead.
In other embodiments, in order to realize the shielding requirements of touch-screen, the manufacture method of capacitive touch screen of the present invention comprises the step of making screen layer, this step is provided with on the nesa coating 2,4 of the two groups of leads opposite side surface relative with dielectric film 3 one sides at substrate 1 and makes attached to this lip-deep nesa coating screen layer 6, and the layout area of the setting area of this screen layer 6 and first group of lead, second group of lead adapts.This step can the above-mentioned first step, second the step, the 3rd the step before, among or carry out afterwards.
In other embodiments; in order to realize protection to the screen layer 6 of touch-screen; the manufacture method of capacitive touch screen of the present invention comprises the step of the insulating protective layer of making screen layer, and this step is made the insulating protective layer that covers this screen layer 6 and expose the local tie point of screen layer on screen layer 6.This step is carried out after the step of above-mentioned making screen layer.
Claims (9)
1. capacitive touch screen, the nesa coating and the dielectric film of two groups of leads that comprise substrate, arrange at substrate upper edge X, Y direction, the nesa coating of first group of lead is provided with continuously in described two groups of leads, the nesa coating of second group of lead is the space segmentation setting with the nesa coating of described first group of lead; Described touch-screen also comprises the low resistance nesa coating that is provided with attached to segmentation on the described substrate corresponding to the nesa coating of described second group of lead, described dielectric film covers on the described substrate of this low resistance nesa coating middle part and vicinity, the nesa coating of described first group of lead across described low resistance nesa coating attached on described dielectric film and the described substrate, it is characterized in that the nesa coating that is positioned at described second group of lead of described first group of lead nesa coating both sides covers second group of continuous lead of formation on described low resistance nesa coating end and the described substrate.
2. capacitive touch screen as claimed in claim 1 is characterized in that, described low resistance nesa coating is one or more layers.
3. capacitive touch screen as claimed in claim 1 is characterized in that, described dielectric film is shaped as rectangle, square, circle or one of oval.
4. as the described capacitive touch screen of one of claim 1 to 3, it is characterized in that, comprise screen layer, described screen layer is for being provided with the nesa coating opposite side lip-deep one or more layers of transparent conductive film layer relative with dielectric film one side of described two groups of leads attached to described substrate, the layout area of the setting area of described screen layer and described first group of lead, second group of lead adapts.
5. capacitive touch screen as claimed in claim 4 is characterized in that, described screen layer is continuous transparent conductive film layer or the transparent conductive film layer that pattern is set.
6. capacitive touch screen as claimed in claim 5 is characterized in that, comprises the insulating protective layer that covers on the described screen layer and expose the local tie point of screen layer.
7. the manufacture method of a capacitive touch screen comprises the steps:
S1, make the low resistance nesa coating, this low resistance nesa coating corresponding to the nesa coating segmentation of second group of lead attached on the substrate;
S2, making dielectric film, dielectric film cover on the substrate of low resistance nesa coating middle part and vicinity;
S3, while make on substrate along the nesa coating of two groups of leads of X, Y direction layout, the nesa coating of first group of lead is provided with continuously, the nesa coating of second group of lead is the space segmentation setting with the nesa coating of first group of lead, and the nesa coating that is positioned at second group of lead of first group of lead nesa coating both sides covers second group of continuous lead of formation on low resistance nesa coating end and the described substrate.
8. the manufacture method of capacitive touch screen as claimed in claim 7, it is characterized in that, being included in described substrate is provided with on the nesa coating of the described two groups of leads opposite side surface relative with dielectric film one side, making is attached to the step of this lip-deep nesa coating screen layer, and the layout area of the setting area of this screen layer and described first group of lead, second group of lead adapts.
9. the manufacture method of capacitive touch screen as claimed in claim 8 is characterized in that, is included in and makes the step that covers this screen layer and expose the insulating protective layer of the local tie point of screen layer on the described screen layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101081433A CN101587407B (en) | 2009-06-29 | 2009-06-29 | Capacitance touch screen and method for preparing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101081433A CN101587407B (en) | 2009-06-29 | 2009-06-29 | Capacitance touch screen and method for preparing the same |
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| Publication Number | Publication Date |
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| CN101587407A CN101587407A (en) | 2009-11-25 |
| CN101587407B true CN101587407B (en) | 2011-06-01 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455831B (en) * | 2010-10-22 | 2016-03-16 | 上海天马微电子有限公司 | Touch-screen, touch LCD display |
| CN102116954A (en) * | 2011-03-17 | 2011-07-06 | 信利半导体有限公司 | Capacitance-type touch screen displayer |
| JP2014052737A (en) * | 2012-09-05 | 2014-03-20 | Nitto Denko Corp | Transparent electrode substrate, method of producing the same, and image display device |
| CN106775139A (en) * | 2015-11-24 | 2017-05-31 | 南昌欧菲光科技有限公司 | Touch-screen and the display device with the touch-screen |
| CN112867379B (en) * | 2021-01-08 | 2022-07-12 | 中国科学院宁波材料技术与工程研究所 | Transparent ultra-wideband electromagnetic shielding device |
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