CN202275389U - Capacitive touch screen and electrode connection structure thereof - Google Patents
Capacitive touch screen and electrode connection structure thereof Download PDFInfo
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- CN202275389U CN202275389U CN2011203641555U CN201120364155U CN202275389U CN 202275389 U CN202275389 U CN 202275389U CN 2011203641555 U CN2011203641555 U CN 2011203641555U CN 201120364155 U CN201120364155 U CN 201120364155U CN 202275389 U CN202275389 U CN 202275389U
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- touch screen
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Abstract
The utility model discloses an electrode connection structure. The electrode connection structure comprises multiple first electrodes extending along a first direction and multiple second electrodes extending along a second direction, wherein the first electrodes and the second electrodes are arranged in a stagger mode; each first electrode comprises multiple bridging parts; every two adjacent second electrodes are electrically connected through a first conducting layer and a second conducting layer; and the first conducting layer and the second conducting layer are respectively arranged close to the bridging parts of the first electrodes. The utility model also discloses a capacitive touch screen with the electrode connection structure. The electrode connection structure and the capacitive touch screen with the structure have the advantages of high touch sensitivity, good reliability and the like.
Description
Technical field
The utility model relates to the demonstration field, particularly a kind of capacitive touch screen and electrode connecting structure thereof of being used for.
Background technology
Along with the development of display technique, capacitive touch screen is by on the various equipment that have a Presentation Function of being applied in more and more widely.When the user with finger or conductive body near or during the touch capacitor type touch screen surface, corresponding variation can take place in the capacitance on the capacitive touch screen surface panel.Capacitive touch screen utilizes capacitance variation to carry out location sensitive.
At present, the technology that touches based on capacitor induction type adopts the rhombus conductive pattern usually.Seeing also Fig. 1, is a kind of prior art capacitive touch screen distribution of electrodes floor map, and it comprises a plurality of first electrodes 1 and second electrode 2.Said a plurality of first electrode 1 is arranged along a direction initialization by a plurality of rhombus electrode patterns.Said a plurality of second electrode 2 is arranged along another direction initialization by a plurality of rhombus electrode patterns equally, and is staggered each other.
Seeing also Fig. 2 again, is first electrode 1 and said second electrode, 2 infall enlarged diagrams described in Fig. 1.Be electrically connected through the bridge interface of metal level 4 between every adjacent two second electrodes 2, and insulation course 3 is set between said first electrode 1 and the metal level 4 at said first electrode 1, and insulated from each other with said metal level 4.
In fact, because said first electrode 1 need be accomplished very carefully in the bridge joint port, cause whole channel electrode to become very big easily, and then cause the touch poor effect of capacitive touch screen.Simultaneously, said metal level 4 naked eyes can be seen, therefore also must design very carefully, in order to avoid influence outward appearance.But same, said metal level 4 is thin more, and the resistance of the passage of then said second electrode 2 is just big more, thereby causes the touch sensitivity of said capacitive touch screen to reduce.
In addition; If said metal level 4 is damaged, can causes whole capacitor formula touch-screen to use and be affected, even can't use; And said metal level 4 requires to process very thin; Thereby the risk that makes metal level described in processing procedure and the use 4 damage strengthens greatly, has both influenced the production yield of electrode, influences the dependability of capacitive touch screen again.
The utility model content
In order to overcome the above-mentioned technical matters of prior art, be necessary to provide the capacitive touch screen and the electrode structure thereof of a kind of touch sensitivity height, good reliability.
A kind of electrode connecting structure; Comprise a plurality of first electrode and a plurality of second electrodes that extend along second direction that extend along first direction; Said first electrode and said second electrode are crisscross arranged; Said first electrode has a plurality of bridge parts, is electrically connected through first conductive layer and second conductive layer between per two adjacent second electrodes, and said first conductive layer and second conductive layer close on the bridge part setting of said first electrode respectively.
Further, between said first conductive layer and first electrode first insulation course is set, between said second conductive layer and first electrode second insulation course is set.
Further, said first conductive layer and second conductive layer are metal levels.
Further, on the first electrode bridge part, the 3rd conductive layer is set, said the 3rd conductive layer is along the elongated setting of the first electrode bearing of trend.
Further, said the 3rd conductive layer is a metal level, and said first electrode is that the ITO material is processed.
A kind of capacitive touch screen; Comprise glass substrate and the electrode structure that is arranged on glass baseplate surface; Said electrode structure comprises a plurality of first electrode and a plurality of second electrodes that extend along second direction that extend along first direction; Said first electrode and said second electrode are crisscross arranged; Said first electrode has a plurality of bridge parts, is electrically connected through first conductive layer and second conductive layer between per two adjacent second electrodes, and said first conductive layer and said second conductive layer close on the bridge part setting of said first electrode respectively.
Further, between said first conductive layer and first electrode first insulation course is set, between said second conductive layer and first electrode second insulation course is set.
Further; Said first electrode and second electrode are arranged on the glass substrate and form electrode layer; Said first insulation course and second insulation course are provided with on the electrode layer and form insulation course, and said first conductive layer and second conductive layer are arranged on the insulation course and form conductive layer.
Further; Said first conductive layer and second conductive layer are arranged on the glass substrate and form conductive layer; Said first insulation course and second insulation course are provided with on the conductive layer and form insulation course, and said first electrode and second electrode are arranged on the insulation course and form electrode layer.
Further, on the first electrode bridge part, the 3rd conductive layer is set.
The utility model capacitive touch screen and electrode connecting structure thereof have following advantage: one, carry out doube bridge through the bridge part place at first electrode and connect in succession; Reduce the conductive channel resistance between second electrode greatly, improved the touch sensitivity of corresponding capacitive touch screen; Two, adopt doube bridge access node structure, strengthened the dependability of electrode and corresponding capacitive touch screen greatly; Three, because metallic conduction resistance ratio ITO is much lower,, improved touch sensitivity so the 3rd conductive layer has reduced the conductive channel resistance of first electrode greatly.
Description of drawings
Fig. 1 is a prior art capacitive touch screen electrode structure schematic top plan view;
Fig. 2 is an electrode connecting structure shown in Figure 1 junction enlarged diagram;
Fig. 3 is the utility model electrode connecting structure enlarged diagram;
Fig. 4 is the film layer structure diagrammatic cross-section of an embodiment of the utility model capacitive touch screen;
Fig. 5 is the film layer structure diagrammatic cross-section of another embodiment of the utility model capacitive touch screen.
Embodiment
Seeing also Fig. 3, is the utility model electrode structure enlarged diagram.Said electrode structure is applicable to capacitive touch screen.Said electrode connecting structure comprises a plurality of first electrodes 11 and a plurality of second electrodes 12 that extend along second direction that extend along first direction, and said first electrode 11 is crisscross arranged with said second electrode 12.Said first electrode 11 comprises a plurality of bridge parts 110, is electrically connected through first conductive layer 14 and second conductive layer electricity 17 between adjacent two second electrodes 12.Said first conductive layer 14 and second conductive layer 17 are separately positioned near the first electrode bridge part, 110 two ends.
Wherein in the present embodiment, first direction is a vertical direction, and second direction is a horizontal direction.Between said first conductive layer 14 and said first electrode 11 first insulation course 13 is set; Between said second conductive layer 17 and first electrode 11 second insulation course 16 is set, thus make win insulated from each other between electrode 11 and first conductive layer 14 and second conductive layer 17.As shown in the figure, said first electrode 11 is provided with the 3rd conductive layer 15 on said bridge part 110, is used to reduce the conductive channel resistance of said first electrode 11.
In the present embodiment, said first electrode 11 and second electrode 12 pattern that assumes diamond in shape, and extend along direction initialization and to arrange, in other embodiments, said first electrode 11 and second electrode 12 can adopt other arranged in patterns, like rectangle, and polygon or the like.
Wherein, said the 3rd conductive layer 15 and first conductive layer 14, second conductive layer 17 and second electrode 12 are insulated from each other.Said first electrode 11 and second electrode 12 adopt ITO (Indium Tin Oxides) materials to process, and said first conductive layer 14, second conductive layer 17 and the 3rd conductive layer 15 adopt metal materials to process, and are metal conducting layers.
Seeing also Fig. 4, is the film layer structure diagrammatic cross-section of an embodiment of the utility model capacitive touch screen.Said capacitive touch screen comprises glass substrate 21, electrode layer 22, insulation course 23 and the conductive layer 24 that is cascading.Said electrode layer 22, insulation course 23 and conductive layer 24 structures can adopt electrode connecting structure as shown in Figure 3.
Seeing also Fig. 5, is the film layer structure diagrammatic cross-section of another embodiment of the utility model capacitive touch screen.Said capacitive touch screen comprises glass substrate 31, conductive layer 32, insulation course 33 and the electrode layer 34 that sets gradually.Said electrode layer 32, insulation course 33 and conductive layer 34 structures can adopt electrode connecting structure as shown in Figure 3.
The utility model capacitive touch screen and electrode connecting structure thereof have following advantage: one, carry out doube bridge through bridge part 110 places at first electrode 11 and connect in succession; Reduce the conductive channel resistance between second electrode 12 greatly, improved the touch sensitivity of corresponding capacitive touch screen; Two, adopt doube bridge access node structure, strengthened the dependability of electrode and corresponding capacitive touch screen greatly; Three, because metallic conduction resistance ratio ITO is much lower,, improved touch sensitivity so the 3rd conductive layer 15 has reduced the conductive channel resistance of first electrode 11 greatly.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (10)
1. electrode connecting structure; Comprise a plurality of first electrode and a plurality of second electrodes that extend along second direction that extend along first direction; Said first electrode and said second electrode are crisscross arranged; It is characterized in that: said first electrode comprises a plurality of bridge parts, is electrically connected through first conductive layer and second conductive layer between per two adjacent second electrodes, and the bridge part two ends that said first conductive layer and said second conductive layer close on said first electrode respectively are provided with.
2. electrode connecting structure according to claim 1 is characterized in that, between said first conductive layer and first electrode first insulation course is set, and between said second conductive layer and first electrode second insulation course is set.
3. electrode connecting structure according to claim 2 is characterized in that, said first conductive layer and second conductive layer are metal levels.
4. electrode connecting structure according to claim 3 is characterized in that, the 3rd conductive layer is set on the bridge part of said first electrode, and said the 3rd conductive layer is along the elongated setting of the first electrode bearing of trend.
5. electrode connecting structure according to claim 4 is characterized in that, said the 3rd conductive layer is a metal level, and said first electrode is that the ITO material is processed, said first electrode and second electrode arranged in patterns that assumes diamond in shape.
6. capacitive touch screen; Comprise glass substrate and the electrode structure that is arranged on glass baseplate surface; Said electrode structure comprises a plurality of first electrode and a plurality of second electrodes that extend along second direction that extend along first direction; Said first electrode and said second electrode are crisscross arranged; It is characterized in that: said first electrode has a plurality of bridge parts, is electrically connected through first conductive layer and second conductive layer between per two adjacent second electrodes, and said first conductive layer and said second conductive layer close on the bridge part setting of said first electrode respectively.
7. capacitive touch screen according to claim 6 is characterized in that, between said first conductive layer and first electrode first insulation course is set, and between said second conductive layer and first electrode second insulation course is set.
8. capacitive touch screen according to claim 7 is characterized in that, said first insulation course and second insulation course are provided with on the electrode layer and form insulation course, and said first conductive layer and second conductive layer are arranged on the insulation course and form conductive layer.
9. capacitive touch screen according to claim 8; It is characterized in that; Said first conductive layer and second conductive layer are arranged on the glass substrate and form conductive layer; Said first insulation course and second insulation course are provided with on the conductive layer and form insulation course, and said first electrode and second electrode are arranged on the insulation course and form electrode layer.
10. according to any described capacitive touch screen of claim 6-9, it is characterized in that, the 3rd conductive layer is set on the bridge part of first electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203641555U CN202275389U (en) | 2011-09-26 | 2011-09-26 | Capacitive touch screen and electrode connection structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203641555U CN202275389U (en) | 2011-09-26 | 2011-09-26 | Capacitive touch screen and electrode connection structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275389U true CN202275389U (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203641555U Expired - Lifetime CN202275389U (en) | 2011-09-26 | 2011-09-26 | Capacitive touch screen and electrode connection structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275389U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968234A (en) * | 2012-11-27 | 2013-03-13 | 南昌欧菲光科技有限公司 | Film capacitive touch screen with bridging structure |
| US10599273B2 (en) | 2017-12-27 | 2020-03-24 | Shanghai Tianma AM-OLED Co., Ltd. | Display panel including electrode blocks connected by bridge structure and display device |
-
2011
- 2011-09-26 CN CN2011203641555U patent/CN202275389U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968234A (en) * | 2012-11-27 | 2013-03-13 | 南昌欧菲光科技有限公司 | Film capacitive touch screen with bridging structure |
| US10599273B2 (en) | 2017-12-27 | 2020-03-24 | Shanghai Tianma AM-OLED Co., Ltd. | Display panel including electrode blocks connected by bridge structure and display device |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |