CN201429834Y - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
- Publication number
- CN201429834Y CN201429834Y CN2009201331947U CN200920133194U CN201429834Y CN 201429834 Y CN201429834 Y CN 201429834Y CN 2009201331947 U CN2009201331947 U CN 2009201331947U CN 200920133194 U CN200920133194 U CN 200920133194U CN 201429834 Y CN201429834 Y CN 201429834Y
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- lead
- touch screen
- nesa coating
- capacitive touch
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Abstract
The utility model relates to a capacitive touch screen, which comprises a substrate, transparent conductive films of two groups of conducting wires, insulating films and metal bridging films. A firstgroup of the transparent conductive films of the two groups of conducting wires is arranged continuously; a second group of the transparent conductive films is arranged in sections at the intervals ofthe first group of the transparent conductive films; the insulating films are covered on the surfaces of the two groups of transparent conductive films and the substrate; the insulating films above each film section of the second group of transparent conductive films include through holes; the metal bridging films adhering to the insulating films stretch across the first group of the transparentconductive films, pass through the through holes on the insulating films and are connected with the second group of the transparent conductive films which are arranged at intervals on two sides of thefirst group of the transparent conductive films so as to form a continuous second group of the conducting wires. By adopting the metal bridging films, the capacitive touch screen improves the continuity of the second group of the conducting wires, reduces the resistance of the second group of the conducting wires and the color difference of the touch screen, and enhances the performance and product quality of the touch screen; by employing transparent conductive layers as shielding layers, the capacitive touch screen can effectively eliminate electrical interference from display devices and guarantee the performance of the touch screen to be unaffected.
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, the line resistance of lead conducting film is higher, reduces touch screen performance;
3, 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;
4, because touch-screen lacks shielding construction, touch-screen can't shield 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 the defective that has capacitive touch screen lead local broken string, lead conducting film line resistance height now, has 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 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 dielectric film covers described two groups of lead nesa coatings and described substrate surface, and the described dielectric film of each film section top of described second group of lead nesa coating comprises through hole; Described touch-screen also comprise attached on the described dielectric film corresponding to the metal bridging film of described second group of lead, described metal bridging film across the nesa coating of described first group of lead, pass through hole on the described dielectric film and connect second group of lead nesa coating that the nesa coating both sides that are positioned at this first group of lead are provided with at interval and make it to become second group of continuous lead.
In capacitive touch screen of the present utility model, the quantity that is arranged on the described through hole on the described dielectric film of each film section top of described second group of lead nesa coating is two or more.
In capacitive touch screen of the present utility model, described through hole be shaped as circle, rectangle, square or one of oval.
In capacitive touch screen of the present utility model, described metal bridging film is one or more layers of metal level or metal alloy layer.
In capacitive touch screen of the present utility model, the width of described metal bridging film is less than the width of the nesa coating of described second group of lead.
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 zone 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. metal bridging rete is thicker, is not prone to the broken string phenomenon, has improved the continuity of second group of lead;
2. the line resistance of metal bridging rete 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, has improved the performance of touch-screen;
3. 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;
4. owing to be provided with transparency conducting layer as screen layer, can effectively get rid of electrical Interference, guarantee that touch screen performance is immune from display device at substrate back.
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, the nesa coating 2,4 and the dielectric film 3 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, the nesa coating 2 of second group of lead is the space segmentation setting with the nesa coating 4 of first group of lead.
On the dielectric film above each film section of the nesa coating 2 of second group of lead, through hole 5 is set, setting attached on the dielectric film 3 corresponding to the metal bridging film 6 (being the every piece lead setting of metal bridging film 6) of second group of lead corresponding to second group of lead, metal bridging film 6 across the nesa coating 4 of first group of lead, pass through hole 5 on the dielectric film 3 and connect second group of lead nesa coating 2 that nesa coating 4 both sides that are positioned at first group of lead are provided with at interval and make it to become second group of continuous lead.
Lead district at the touch-screen edge, dielectric film 3 parts are exposed the nesa coating 4 of first group of lead and the nesa coating 2 of second group of lead, so that connect the lead-in wire of two groups of leads.
As required, the through hole 5 that is provided with on the dielectric film 3 above each film section of above-mentioned nesa coating 2 at second group of lead can for one, two, three or more, the shape of through hole 5 can adopt and include but not limited to circle, rectangle, square or oval.
As required, above-mentioned metal bridging film 6 can be adopted as one or more layers of metal level or metal alloy layer.
In the present embodiment, the width of the width of metal bridging film 6 less than the nesa coating 2 of second group of lead is set.In other embodiments, as required, the width of metal bridging film 6 can 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 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, simultaneously on substrate, make along the nesa coating 4 of 4,2, the first groups of leads of nesa coating of X, first group of lead that the Y direction is arranged and second group of lead be 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;
Second step, make dielectric film 3, dielectric film 3 covers the nesa coating 2,4 of first, second group lead and the surface of substrate 1, and makes through hole 5 on the dielectric film 3 above each film section of the nesa coating 2 of second group of lead;
The 3rd step, make metal bridging film 6, metal bridging film 6 across the nesa coating 4 of first group of lead, pass through hole 5 on the dielectric film 3 and connect second group of lead nesa coating 2 that nesa coating 4 both sides that are positioned at this first group of lead are provided with at interval and make it to become second group of continuous lead.
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, 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 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 (8)
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 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 dielectric film covers described two groups of lead nesa coatings and described substrate surface, and the described dielectric film of each film section top of described second group of lead nesa coating comprises through hole; Described touch-screen also comprise attached on the described dielectric film corresponding to the metal bridging film of described second group of lead, described metal bridging film across the nesa coating of described first group of lead, pass through hole on the described dielectric film and connect second group of lead nesa coating that the nesa coating both sides that are positioned at this first group of lead are provided with at interval and make it to become second group of continuous lead.
2, capacitive touch screen as claimed in claim 1 is characterized in that, the quantity that is arranged on the described through hole on the described dielectric film of each film section top of described second group of lead nesa coating is two or more.
3, capacitive touch screen as claimed in claim 1 is characterized in that, described through hole be shaped as circle, rectangle, square or one of oval.
4, capacitive touch screen as claimed in claim 1 is characterized in that, described metal bridging film is one or more layers of metal level or metal alloy layer.
5, capacitive touch screen as claimed in claim 1 is characterized in that, the width of described metal bridging film is less than the width of the nesa coating of described second group of lead.
6, as the described capacitive touch screen of one of claim 1 to 5, 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.
7, capacitive touch screen as claimed in claim 6 is characterized in that, described screen layer is continuous transparent conductive film layer or the transparent conductive film layer that pattern is set.
8, capacitive touch screen as claimed in claim 7 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 |
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CN2009201331947U CN201429834Y (en) | 2009-06-29 | 2009-06-29 | Capacitive touch screen |
Applications Claiming Priority (1)
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CN2009201331947U CN201429834Y (en) | 2009-06-29 | 2009-06-29 | Capacitive touch screen |
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CN201429834Y true CN201429834Y (en) | 2010-03-24 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102004574A (en) * | 2010-08-13 | 2011-04-06 | 苏州瀚瑞微电子有限公司 | Method for preventing power supply noise of touch screen device |
CN102096515A (en) * | 2010-12-22 | 2011-06-15 | 友达光电股份有限公司 | Touch display panel |
CN102270074A (en) * | 2010-06-02 | 2011-12-07 | 群康科技(深圳)有限公司 | Electrode structure and manufacturing method thereof |
CN103116427A (en) * | 2012-12-10 | 2013-05-22 | 漳州宝发光电科技有限公司 | Bridging and wire-leading sensor of monolayer multi-point touch screen and forming process thereof |
CN103530010A (en) * | 2013-09-27 | 2014-01-22 | 深圳市华星光电技术有限公司 | Mutual capacitance type touch screen |
CN104054139A (en) * | 2012-01-24 | 2014-09-17 | 迪睿合电子材料有限公司 | Transparent conductive element, manufacturing method therefor, input apparatus, electronic device, and thin-film patterning method |
-
2009
- 2009-06-29 CN CN2009201331947U patent/CN201429834Y/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102270074A (en) * | 2010-06-02 | 2011-12-07 | 群康科技(深圳)有限公司 | Electrode structure and manufacturing method thereof |
CN102270074B (en) * | 2010-06-02 | 2016-02-17 | 群康科技(深圳)有限公司 | Electrode structure and manufacture method thereof |
CN102004574A (en) * | 2010-08-13 | 2011-04-06 | 苏州瀚瑞微电子有限公司 | Method for preventing power supply noise of touch screen device |
CN102096515A (en) * | 2010-12-22 | 2011-06-15 | 友达光电股份有限公司 | Touch display panel |
CN102096515B (en) * | 2010-12-22 | 2012-10-17 | 友达光电股份有限公司 | touch display panel |
CN104054139A (en) * | 2012-01-24 | 2014-09-17 | 迪睿合电子材料有限公司 | Transparent conductive element, manufacturing method therefor, input apparatus, electronic device, and thin-film patterning method |
CN103116427A (en) * | 2012-12-10 | 2013-05-22 | 漳州宝发光电科技有限公司 | Bridging and wire-leading sensor of monolayer multi-point touch screen and forming process thereof |
CN103116427B (en) * | 2012-12-10 | 2016-05-18 | 文山嘉鑫科技有限公司 | Bridging lead-in wire sensor and the moulding process thereof of individual layer multi-point touch screen |
CN103530010A (en) * | 2013-09-27 | 2014-01-22 | 深圳市华星光电技术有限公司 | Mutual capacitance type touch screen |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Jinley Coating Co., Ltd. Assignor: Shenzhen Laibao Hi-tech Co., Ltd. Contract record no.: 2012330000015 Denomination of utility model: Capacitance type touch screen and manufacturing method thereof Granted publication date: 20100324 License type: Exclusive License Record date: 20120208 |
|
CX01 | Expiry of patent term |
Granted publication date: 20100324 |
|
CX01 | Expiry of patent term |