CN201429836Y - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
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- CN201429836Y CN201429836Y CN2009201331966U CN200920133196U CN201429836Y CN 201429836 Y CN201429836 Y CN 201429836Y CN 2009201331966 U CN2009201331966 U CN 2009201331966U CN 200920133196 U CN200920133196 U CN 200920133196U CN 201429836 Y CN201429836 Y CN 201429836Y
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- lead
- nesa coating
- resistance conductive
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Abstract
The utility model relates to a capacitive touch screen, which comprises a substrate, two groups of transparent conductive films of conducting wires, insulating films and two groups of low-resistance conductive films. The two groups of transparent conductive films are arranged in sections at intervals with all interval positions overlapped in one-to-one correspondence; a first group of the low-resistance conductive films is connected with a part of the transparent conductive films of a first group of the conductive wires along the direction of the first group of the conducting wires so as to form the continuous first group of conducting wires; a second group of the low-resistance conductive films stretches across the first group of the low-resistance conductive films along the direction ofa second group of the conducting wires, and is connected with the transparent conductive films of the second group of the conducting wires so as to form a continuous second group of the conducting wires; the insulating films are positioned between the two groups of low-resistance conductive films and covered on the surface of the substrate at the position close to the first group of the low-resistance conductive films, and the second group of the low-resistance conductive films is covered on the insulating films. The capacitive touch screen has the advantages of having the conducting wires noteasy to break, reducing the resistance of the conducting wires, decreasing color difference and electrical interference and enhancing the quality and performance of products.
Description
Technical field
The utility model relates to a kind of touch-screen, is specifically related to a kind of capacitive touch screen.
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, because the lead conducting membrane material adopts transparent material, and rete is thinner, the phenomenon that breaks appears in bridging rete above the crossing crunode place of two groups of leads is positioned at easily, causes the local broken string of lead;
2, lead conducting film line resistance is higher, reduces touch screen performance;
3, the stray capacitance of X, Y direction is bigger, and anti-acoustic capability is relatively poor, has reduced the sensitivity and the resolution of touch-screen;
4, 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;
5, 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.
Summary of the invention
The technical problems to be solved in the utility model is, a kind of capacitive touch screen is provided, and overcomes defectives such as existing capacitive touch screen exists line resistance height, sensitivity and the resolution of the local broken string of lead, lead conducting film not high, aberration.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of capacitive touch screen, comprise substrate, at substrate upper edge X, the nesa coating and the dielectric film of two groups of leads that the Y direction is arranged, it is characterized in that, the nesa coating space segmentation of first group of lead in described two groups of leads is provided with, the nesa coating of second group of lead in described two groups of leads is the space segmentation setting with described first group of lead, each interval location of this first group of lead nesa coating and the corresponding one by one coincidence of each interval location of this second group of lead nesa coating; Also comprise one or more layers of first group of low-resistance conductive, corresponding to one or more layers of second group of low-resistance conductive of second group of lead nesa coating corresponding to first group of lead nesa coating; Described first group of low-resistance conductive is along on the described substrate of first group of lead direction attached to the interval of the described first group of lead nesa coating part that is provided with at interval and this nesa coating this first group of lead nesa coating being connected into first group of continuous lead; Described second group of low-resistance conductive connects into continuous second group lead attached to the described second group of lead nesa coating part that is provided with at interval with this second group of lead nesa coating across described first group of low-resistance conductive along second group of lead direction; Described dielectric film is between described first group of low-resistance conductive and described second group of low-resistance conductive and cover described first group of low-resistance conductive and the contiguous described substrate surface of locating of this first group of low-resistance conductive, and described second group of low-resistance conductive covers described dielectric film and the described second group of lead nesa coating part that is connected.
In capacitive touch screen of the present utility model, described dielectric film covers the described substrate surface at described first group of lead nesa coating part and this low-resistance conductive and the contiguous place of this nesa coating of all described first group of low-resistance conductive, this low-resistance conductive connection.
In capacitive touch screen of the present utility model, described first group of low-resistance conductive width is less than the width of described first group of lead nesa coating.
In capacitive touch screen of the present utility model, described second group of low-resistance conductive width is less than the width of described second group of lead nesa coating.
In capacitive touch screen of the present utility model, described dielectric film is shaped as rectangle, square, circle or one of oval.
In capacitive touch screen of the present utility model, described first group of low-resistance conductive is metal bridging film or low resistance nesa coating, and described second group of low-resistance conductive is metal bridging film or low resistance nesa coating.
In capacitive touch screen of the present utility model, 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 utility model, 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 utility model, comprise the insulating protective layer that covers on the described screen layer and expose the local tie point of screen layer.
Implement capacitive touch screen of the present utility model, compared with the prior art, its beneficial effect is:
1. the low-resistance conductive layer is thicker, is not prone to the broken string phenomenon, has improved the continuity of two groups of leads;
2. the line resistance of low-resistance conductive layer has reduced the line resistance of two groups of leads much smaller than the line resistance of transparent lead rete, has improved the performance of touch-screen;
3. when contiguous second group of lead nesa coating one lateral edges of dielectric film and do not contact second group of lead nesa coating, perk can not appear in the dielectric film edge, so the low-resistance conductive layer can not break at the edge of dielectric film, has improved yield of products.
4. the transparent conductive film layer of two groups of leads can be made simultaneously, avoided making respectively the aberration that causes, improved the product quality of touch-screen, simultaneously, owing to be provided with transparency conducting layer as screen layer at substrate back, can effectively get rid of electrical Interference, guarantee that touch screen performance is immune from display device;
5. adopt the decussate texture of two groups of low-resistance conductive layers, the line resistance of low-resistance conductive layer is little, low-resistance conductive can be done very narrowly, thereby make the intersection region area of two low-resistance conductive layers become very little, then the stray capacitance of X, Y direction is less, reach noise reduction preferably, and then technical features such as the sensitivity of raising touch-screen and resolution.
Description of drawings
The utility model is described in further detail 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 the utility model capacitive touch screen.
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 the utility model capacitive touch screen.
Embodiment
As shown in Figure 1 and Figure 2, capacitive touch screen of the present utility model comprise substrate 1, nesa coating, dielectric film 3 and two groups of low-resistance conductive of two groups of leads arranging at substrate 1 upper edge X, Y direction.
The nesa coating 2 space segmentation settings of first group of lead in two groups of leads, the nesa coating 4 of second group of lead is the space segmentation setting with first group of lead, each interval location of this first group of lead nesa coating 2 and the corresponding one by one coincidence of each interval location of this second group of lead nesa coating 4.
First group of low-resistance conductive 5 in two groups of low-resistance conductive is provided with corresponding to first group of lead nesa coating 2, and second group of low-resistance conductive 6 is provided with corresponding to second group of lead nesa coating 4.First group of low-resistance conductive 5 is along on the substrate 1 of first group of lead direction attached to the interval of local and this nesa coating of the first group of lead nesa coating 2 that is provided with at interval this first group of lead nesa coating 2 being connected into first group of continuous lead.Second group of low-resistance conductive 6 connects into continuous second group lead attached to the part of the second group of lead nesa coating 2 that is provided with at interval with this second group of lead nesa coating 2 across first group of low-resistance conductive 5 along second group of lead direction.
Above-mentioned low-resistance conductive can adopt and include but not limited to metal bridging film or low resistance nesa coating.First group of low-resistance conductive 5 and second group of low-resistance conductive 6 can adopt following combination:
1, first group of low-resistance conductive 5 and second group of low-resistance conductive 6 all adopt metal bridging film;
2, first group of low-resistance conductive 5 and second group of low-resistance conductive 6 all adopt the low resistance nesa coating;
3, first group of low-resistance conductive 5 adopts metal bridging film, and second group of low-resistance conductive 6 adopts the low resistance nesa coating;
4, first group of low-resistance conductive 5 adopts the low resistance nesa coating, and second group of low-resistance conductive 6 adopts metal bridging film.
In the present embodiment, dielectric film 3 covers whole first group of low-resistance conductive 5, also covers local and this local substrate 1 surface of first group of lead nesa coating, 2 connections of connection of first group of lead nesa coating 2 of first group of low-resistance conductive, 5 connections.In other embodiments, dielectric film 3 can only cover local and substrate 1 surface that should the part of intersecting of first group of low-resistance conductive 5 of intersecting with second group of low-resistance conductive 6.
As required, first group of low-resistance conductive can adopt one deck, two-layer, three layers or multilayer, and second group of low-resistance conductive also can adopt one deck, two-layer, three layers or multilayer.
In the present embodiment, the width of first group of low-resistance conductive 5 is less than the width of first group of lead nesa coating 2.In other embodiments, as required, the width of first group of low-resistance conductive 5 can be equal to or greater than the width of first group of lead nesa coating 2.
Equally, in the present embodiment, the width of second group of low-resistance conductive 6 is less than the width of second group of lead nesa coating 4.In other embodiments, as required, the width of second group of low-resistance conductive 6 can be equal to or greater than the width of second group of lead nesa coating 4.
In the present embodiment, the shape of dielectric film 3 adopts rectangle.In other embodiments, the shape of dielectric film 3 can adopt and include but not limited to square, circle or oval.
In order to get rid of electrical Interference from display device, guarantee that touch screen performance is immune, capacitive touch screen of the present utility model can be provided with screen layer 7.
As shown in Figure 2, screen layer 7 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 7 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 7 can equal, less than or greater than the layout area of first group of lead and second group of lead.
For protection mask layer 7, the insulating protective layer (not shown) that covers screen layer 7 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 7.
As Fig. 1, shown in Figure 3, the manufacture method of capacitive touch screen of the present utility model comprises the steps:
The first step, while are made the nesa coating 2,4 of first group, second group lead on substrate 1, the nesa coating 2 space segmentation settings of first group of lead, the nesa coating 4 of second group of lead is the space segmentation setting with first group of lead, each interval location of this first group of lead nesa coating 2 and the corresponding one by one coincidence of each interval location of this second group of lead nesa coating 4.
Second step, make 5, the first groups of low-resistance conductive 5 of first group of low-resistance conductive corresponding to first group of lead nesa coating 2 along on the substrate 1 of first group of lead direction attached to the interval of local and this nesa coating 2 of the first group of lead nesa coating 2 that is provided with at interval this first group of lead nesa coating 2 being connected into first group of continuous lead.
The 3rd step, making dielectric film 3, on first group of low-resistance conductive 5 of two groups of lead infalls of dielectric film 3 coverings and substrate 1 surface at these first group of low-resistance conductive, 5 contiguous places.
The 4th step, 6, the second groups of low-resistance conductive 6 of second group of low-resistance conductive of making corresponding to second group of lead nesa coating 4 connect into continuous second group lead across the part that first group of low-resistance conductive 5 covers second group of lead nesa coating 4 of dielectric film 3 and interval setting with this second group of lead nesa coating 4 along second group of lead direction.
In the first step, as required, substep is made the nesa coating 4,2 of first group of lead and second group of lead on substrate 1, do not influence the realization of the object of the invention.
In other embodiments, in order to realize the shielding requirements of touch-screen, the manufacture method of capacitive touch screen of the present utility model 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 7, and the layout area of the setting area of this screen layer 7 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, the 4th the step before, among or carry out afterwards.
In other embodiments; in order to realize protection to the screen layer 7 of touch-screen; the manufacture method of capacitive touch screen of the present utility model 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 7 and expose the local tie point of screen layer on screen layer 7.This step is carried out after the step of above-mentioned making screen layer.
Claims (9)
1, 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, it is characterized in that, the nesa coating space segmentation of first group of lead in described two groups of leads is provided with, the nesa coating of second group of lead in described two groups of leads is the space segmentation setting with described first group of lead, each interval location of this first group of lead nesa coating and the corresponding one by one coincidence of each interval location of this second group of lead nesa coating; Also comprise one or more layers of first group of low-resistance conductive, corresponding to one or more layers of second group of low-resistance conductive of second group of lead nesa coating corresponding to first group of lead nesa coating; Described first group of low-resistance conductive is along on the described substrate of first group of lead direction attached to the interval of the described first group of lead nesa coating part that is provided with at interval and this nesa coating this first group of lead nesa coating being connected into first group of continuous lead; Described second group of low-resistance conductive connects into continuous second group lead attached to the described second group of lead nesa coating part that is provided with at interval with this second group of lead nesa coating across described first group of low-resistance conductive along second group of lead direction; Described dielectric film is between described first group of low-resistance conductive and described second group of low-resistance conductive and cover described first group of low-resistance conductive and the contiguous described substrate surface of locating of this first group of low-resistance conductive, and described second group of low-resistance conductive covers described dielectric film and the described second group of lead nesa coating part that is connected.
2, capacitive touch screen as claimed in claim 1, it is characterized in that described dielectric film covers the described substrate surface at described first group of lead nesa coating part and this low-resistance conductive and the contiguous place of this nesa coating of all described first group of low-resistance conductive, this low-resistance conductive connection.
3, capacitive touch screen as claimed in claim 1 is characterized in that, described first group of low-resistance conductive width is less than the width of described first group of lead nesa coating.
4, capacitive touch screen as claimed in claim 1 is characterized in that, described second group of low-resistance conductive width is less than the width of described second group of lead nesa coating.
5, 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.
6, capacitive touch screen as claimed in claim 1 is characterized in that, described first group of low-resistance conductive is metal bridging film or low resistance nesa coating, and described second group of low-resistance conductive is metal bridging film or low resistance nesa coating.
7, as the described capacitive touch screen of one of claim 1 to 6, 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.
8, capacitive touch screen as claimed in claim 7 is characterized in that, described screen layer is continuous transparent conductive film layer or the transparent conductive film layer that pattern is set.
9, capacitive touch screen as claimed in claim 8 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201331966U CN201429836Y (en) | 2009-06-29 | 2009-06-29 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201331966U CN201429836Y (en) | 2009-06-29 | 2009-06-29 | Capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429836Y true CN201429836Y (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201331966U Expired - Fee Related CN201429836Y (en) | 2009-06-29 | 2009-06-29 | Capacitive touch screen |
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| CN (1) | CN201429836Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984454A (en) * | 2013-02-08 | 2014-08-13 | 胜华科技股份有限公司 | Touch panel and manufacturing method thereof |
| TWI467429B (en) * | 2011-12-12 | 2015-01-01 | ||
| CN104461188A (en) * | 2014-05-31 | 2015-03-25 | 福州大学 | Method for preparing capacitive touch screen bridging structure |
-
2009
- 2009-06-29 CN CN2009201331966U patent/CN201429836Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI467429B (en) * | 2011-12-12 | 2015-01-01 | ||
| CN103984454A (en) * | 2013-02-08 | 2014-08-13 | 胜华科技股份有限公司 | Touch panel and manufacturing method thereof |
| CN103984454B (en) * | 2013-02-08 | 2017-04-12 | 胜华科技股份有限公司 | Touch panel |
| CN104461188A (en) * | 2014-05-31 | 2015-03-25 | 福州大学 | Method for preparing capacitive touch screen bridging structure |
| CN104461188B (en) * | 2014-05-31 | 2017-12-05 | 福州大学 | A kind of preparation method of capacitance touch screen bridging structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20100629 |