CN201429837Y - Capacitive touch screen structure - Google Patents
Capacitive touch screen structure Download PDFInfo
- Publication number
- CN201429837Y CN201429837Y CN 200920133293 CN200920133293U CN201429837Y CN 201429837 Y CN201429837 Y CN 201429837Y CN 200920133293 CN200920133293 CN 200920133293 CN 200920133293 U CN200920133293 U CN 200920133293U CN 201429837 Y CN201429837 Y CN 201429837Y
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- CN
- China
- Prior art keywords
- group
- lead
- transparent conductive
- touch screen
- capacitive touch
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- Expired - Lifetime
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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Abstract
Disclosed is a capacitive touch screen structure, which comprises transparent conductive films of two groups of conductive wires, insulation films, metal bridging film layers and a transparent conductive film shielding layer, wherein the transparent conductive films, the insulation films and the metal bridging film layers are arranged on a substrate, and the transparent conductive shielding layeris arranged on the other side of the substrate. The transparent conductive films of a first group of the conductive wires are continuously arranged; the transparent conductive films of a second groupof the conductive wires are arranged in sections at intervals of the transparent conductive films of the first group of the conductive wires; the insulation films are covered on the transparent conductive films of the first group of the conductive wires at the intersection position of the two groups of the conductive wires, on edges of the transparent conductive films of the second group of the conductive wires and on the surface of the substrate at the intersection position; the metal bridging film layers stretching across the insulation films are connected with the transparent conductive films of the second group of the conductive wires arranged at intervals on two sides of the transparent conductive films of the first group of the conductive wires and lead the second group of the conductive wires to be continuous. The capacitive touch screen structure enables transparent conductive film layers of the two groups of the conductive wires to be simultaneously manufactured, avoids colordifference, improves product quality of a touch screen, shields electric interference, is not easy to generate wire breakage due to the comparatively thick metal bridging film layers and improves theperformance of the touch screen because of small wire resistance of the metal bridging film layers.
Description
Technical field
The utility model relates to a kind of touch screen structure, is specifically related to a kind of capacitive touch screen structure.
Background technology
The wiring of 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 touch screen 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 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;
3, the line resistance of lead conducting film is higher, reduces the sensitive performance of touch-screen;
4, 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.
The utility model content
The technical problems to be solved in the utility model is, a kind of capacitive touch screen structure is provided, solves existing capacitive touch screen structure and have aberration, the local broken string of lead, the line resistance height of lead conducting film and the defective that touch-screen is subjected to the display device electrical Interference.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of capacitive touch screen structure, comprise and be arranged in glass 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, also comprise metal bridging rete and screen layer, 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 the nesa coating of described first group of lead of described two groups of lead infalls, the edge of the nesa coating of second group of lead and the substrate surface of described infall, second group of lead nesa coating that the nesa coating both sides that described metal bridging rete is positioned at described first group of lead across described dielectric film connection are provided with at interval makes it to become second group of continuous lead; Described screen layer is for being provided with the nesa coating opposite side lip-deep transparent conductive film layer relative with dielectric film one side of described two groups of leads attached to described glass substrate.
In capacitive touch screen structure of the present utility model, described screen layer is one or more layers of transparent conductive film layer.
In capacitive touch screen structure of the present utility model, described screen layer is continuous transparent conductive film layer.
In capacitive touch screen structure of the present utility model, described screen layer is the transparent conductive film layer that pattern is set.
In capacitive touch screen structure of the present utility model, described metal bridging rete is one or more layers of metal level or metal alloy layer.
In capacitive touch screen structure of the present utility model, comprise the insulating protective layer that covers on the described screen layer and expose shadow shield layer tie point.
In capacitive touch screen structure of the present utility model, described dielectric film is shaped as rectangle, square or one of oval.
In capacitive touch screen structure of the present utility model, the width of described metal bridging rete is less than the width of the nesa coating of described second group of lead.
Implement capacitive touch screen structure of the present utility model, compared with the prior art, its beneficial effect is:
1. 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;
2. metal bridging rete is thicker, is not prone to the broken string phenomenon, has improved the integrity of second group of lead;
3. the line resistance of metal bridging rete has reduced the line resistance of second group of lead much smaller than the line resistance of transparent lead rete, has improved the performance of touch-screen.
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 structure.
Fig. 2 is an A-A sectional view among Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, capacitive touch screen structure of the present utility model comprises the nesa coating, dielectric film of two groups of leads that the side that is arranged in glass substrate 1 is arranged along X, Y both direction respectively and attached to the screen layer on the opposite side surface of glass substrate 1.
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, dielectric film 3 covers the surface of the substrate 1 of the edge of nesa coating 2 of the nesa coating 4 of first group of lead of two groups of lead infalls, second group of lead and infall, metal bridging rete 5 is set, and this metal bridging rete 5 connects 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 across dielectric film 3 makes it to become second group of continuous lead.Two groups of leads mutually insulated, complete have so promptly been finished.
Screen layer adopts attached to glass substrate 1 lip-deep transparent conductive film layer 6, by transparent conductive film layer 6, removes the electrical Interference from display device, guarantees that touch screen performance is immune.
Transparent conductive film layer 6 can adopt one deck, also adopts the above transparent conductive film layer of one deck as required.Transparent conductive film layer 6 can adopt continuous transparent conductive film layer, also can adopt figuratum transparent conductive film layer is set as required.
For the protection mask layer, the insulating protective layer (not shown) cover on the screen layer is set, insulating protective layer exposes the shadow shield layer, so that as the tie point of screen layer.Insulating protective layer can adopt insulation courses commonly used such as silicon dioxide layer.
Metal bridging rete can be adopted as the metal level or the metal alloy layer of one deck, two-layer, three layers or multilayer.Its thickness is much larger than the thickness of transparent conductive film layer, therefore, adopt metal bridging rete to carry out wire jumper, be not easy to produce the broken string phenomenon, and the line resistance of metallic diaphragm is much smaller than the line resistance of transparent conductive film layer, so bridging jumper wire construction of the present utility model has reduced the line resistance of second group of lead, thereby has improved the performance of touch-screen.
As shown in Figure 2, in the present embodiment, the shape of dielectric film 3 adopts rectangle, and in other embodiments, dielectric film 3 can adopt and include but not limited to square, ellipse.
Metal bridging rete is littler than the line resistance of transparent conductive film layer, conductivity is high, and its width is usually less than the width of the nesa coating of second group of lead.
Claims (9)
1, a kind of capacitive touch screen structure, comprise and be arranged in glass 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, also comprise metal bridging rete and screen layer, 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 the nesa coating of described first group of lead of described two groups of lead infalls, the edge of the nesa coating of second group of lead and the substrate surface of described infall, second group of lead nesa coating that the nesa coating both sides that described metal bridging rete is positioned at described first group of lead across described dielectric film connection are provided with at interval makes it to become second group of continuous lead; Described screen layer is for being provided with the nesa coating opposite side lip-deep transparent conductive film layer relative with dielectric film one side of described two groups of leads attached to described glass substrate.
2, capacitive touch screen as claimed in claim 1 is characterized in that, described screen layer is one or more layers of transparent conductive film layer.
3, capacitive touch screen as claimed in claim 1 is characterized in that, described screen layer is continuous transparent conductive film layer.
4, capacitive touch screen as claimed in claim 1 is characterized in that, described screen layer is the transparent conductive film layer that pattern is set.
5, capacitive touch screen structure as claimed in claim 1 is characterized in that, described metal bridging rete is one or more layers of metal level or metal alloy layer.
6, as the described capacitive touch screen structure of one of claim 1 to 5, it is characterized in that, comprise the insulating protective layer that covers on the described screen layer and expose shadow shield layer tie point.
7, capacitive touch screen structure as claimed in claim 6 is characterized in that, described dielectric film is shaped as rectangle, square or one of oval.
8, capacitive touch screen structure as claimed in claim 6 is characterized in that, the width of described metal bridging rete is less than the width of the nesa coating of described second group of lead.
9, capacitive touch screen structure as claimed in claim 7 is characterized in that, the width of described metal bridging rete is less than the width of the nesa coating of described second group of lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920133293 CN201429837Y (en) | 2009-06-25 | 2009-06-25 | Capacitive touch screen structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920133293 CN201429837Y (en) | 2009-06-25 | 2009-06-25 | Capacitive touch screen structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429837Y true CN201429837Y (en) | 2010-03-24 |
Family
ID=42033577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920133293 Expired - Lifetime CN201429837Y (en) | 2009-06-25 | 2009-06-25 | Capacitive touch screen structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201429837Y (en) |
-
2009
- 2009-06-25 CN CN 200920133293 patent/CN201429837Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100324 |
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| CX01 | Expiry of patent term |