CN202433880U - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
- Publication number
- CN202433880U CN202433880U CN2012200126097U CN201220012609U CN202433880U CN 202433880 U CN202433880 U CN 202433880U CN 2012200126097 U CN2012200126097 U CN 2012200126097U CN 201220012609 U CN201220012609 U CN 201220012609U CN 202433880 U CN202433880 U CN 202433880U
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- CN
- China
- Prior art keywords
- touch screen
- capacitive touch
- photoresists
- electrode layer
- protection piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a capacitive touch screen which comprises a baseplate, an electrode layer on the surface of the baseplate, and a plurality of photosensitive glue protective blocks on the electrode layer, wherein the electrode layer comprises first direction electrodes, second direction electrodes and a plurality of wiring bridges; the first direction electrodes and the second direction electrodes are separated by the wiring brides and are always in insulation; the photosensitive glue protective blocks are arranged on the electrode layer at intervals and cover the wiring bridges. According to the capacitive touch screen, the photosensitive glue protective blocks, which are arranged at intervals, are adopted to protect the vital wiring bridges, the insulation property, compared with a traditional way of whole protection by SIO2, is better.
Description
[technical field]
The utility model relates to the display device field, particularly a kind of capacitive touch screen.
[background technology]
Capacitive touch screen is widely used in various information as a kind of emerging information input mode and shows product, like touch-screen mobile phone, GPS navigation system etc.
The electrode layer of traditional capacitive touch screen adopts SIO
2The justifying protection.Yet, use SIO
2Guard electrode layer insulativity is relatively poor.
[utility model content]
Based on this, be necessary to provide a kind of insulativity capacitive touch screen preferably.
A kind of capacitive touch screen comprises substrate, is arranged on the electrode layer on the said substrate surface and is arranged on a plurality of photoresists protection pieces on the said electrode layer;
Said electrode layer comprises first direction electrode, second direction electrode and a plurality of connecting bridge, and said first direction electrode and said second direction electrode separate and keep insulation through a plurality of said connecting bridges;
Said a plurality of photoresists protections block gap is arranged on the said electrode layer, and covers said connecting bridge.
Preferably, said photoresists protection piece is corresponding one by one with said connecting bridge.
Preferably, each said photoresists protection piece covers at least two said connecting bridges.
Preferably, said photoresists protection piece is rectangle, square, circle or oval.
Preferably, the material of said photoresists protection piece is an organic insulator.
Preferably, the thickness of said photoresists protection piece is 1 μ m～3 μ m.
Preferably, said connecting bridge is MoAlMo electric bridge or ITO electric bridge.
Preferably, the material of said first direction electrode and second direction electrode is ITO.
Preferably, said electrode layer also comprises respectively the lead-in wire zone that is connected with said second direction electrode electricity with said first direction electrode, and said lead-in wire zone is coated with photoresists protection piece.
The photoresists protection block protection that this capacitive touch screen is provided with through employing at interval plays the connecting bridge of key function, with traditional SIO
2The justifying protection is compared, and insulating property are better.
[description of drawings]
Fig. 1 is the diagrammatic cross-section of the capacitive touch screen of an embodiment;
Fig. 2 is the front schematic view of capacitive touch screen as shown in Figure 1;
Fig. 3 is the synoptic diagram that the lead-in wire zone of capacitive touch screen as shown in Figure 2 covers photoresists protection piece;
Front schematic view when Fig. 4 is not provided with photoresists protection piece for capacitive touch screen as shown in Figure 1;
Fig. 5 is the preparation flow figure of the capacitive touch screen of an embodiment.
[embodiment]
For the ease of understanding the utility model, will more comprehensively describe the utility model with reference to relevant drawings below.Provided the preferred embodiment of the utility model in the accompanying drawing.But the utility model can be realized with many different forms, be not limited to embodiment described herein.On the contrary, provide the purpose of these embodiment be make the understanding of the disclosure of the utility model comprehensively thorough more.
Need to prove, when element is called as " being fixed in " another element, it can be directly on another element or also can have element placed in the middle.When an element is considered to " connection " another element, it can be to be directly connected to another element or possibly to have element placed in the middle simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Only if definition is arranged in addition, the employed all technology of this paper are identical with the implication of the those skilled in the art's common sense that belongs to the utility model with scientific terminology.Among this paper in the instructions of the utility model employed term be not intended to be restriction the utility model just in order to describe the purpose of concrete embodiment.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
The employing SIO of traditional capacitive touch screen
2The justifying protection.Yet, use SIO
2Guard electrode layer insulativity is relatively poor.
Based on this, be necessary to provide a kind of insulativity capacitive touch screen preferably.
As shown in Figure 1, the capacitive touch screen of an embodiment comprises substrate 10, is arranged on substrate 10 lip-deep electrode layers 20 and is arranged on a plurality of photoresists protection pieces 30 on the electrode layer 20.
In conjunction with Fig. 2 and Fig. 4, electrode layer 20 comprises first direction electrode 22, second direction electrode 24 and a plurality of connecting bridge 26.First direction electrode 22 and second direction electrode 24 can vertical each other settings, and separate through a plurality of connecting bridges 26 and to keep mutually insulated.
In this embodiment, photoresists protection piece 30 is a rectangle.In other embodiment, photoresists protection piece 30 can also be square, circular or oval.
Through comparison diagram 2 and Fig. 4, can find out clearly that a plurality of photoresists protection pieces 30 are arranged on the electrode layer 20 at interval, and cover connecting bridge 26.
In this embodiment, photoresists protection piece 30 is corresponding one by one with connecting bridge 26.That is, each photoresists protection piece 30 covers and only covers a connecting bridge 26.
In other embodiment, each photoresists protection piece 30 can cover two, three or more a plurality of connecting bridge 26.Each photoresists protection piece 30 covers a plurality of connecting bridges 26 can simplify preparation technology on the one hand, and on the other hand, the tack of photoresists protection piece 30 is also higher.
This capacitive touch screen plays the connecting bridge 26 of key function through adopting photoresists protection piece 30 protections that are provided with at interval, with traditional SIO
2The justifying protection is compared, and insulating property are better.
In addition, adopt the capacitive touch screen of justifying photoresists protection to compare with electrode layer, because justifying photoresists protection cost is higher; Be easy to generate open defects such as bubble, residual, color spot, MURA; Transmitance is lower simultaneously, and adopts photoresists protection piece 30 protections that are provided with at interval to play the connecting bridge 26 of key function, has not only reduced cost; Improved open defect greatly, transmitance is enhanced simultaneously.
The good insulation preformance of this capacitive touch screen, transmitance can surpass 90% simultaneously, greatly improves yield, reduces production costs.
The material of first direction electrode 22 and second direction electrode 24 can be ITO, and connecting bridge 26 can be MoAlMo electric bridge or ITO electric bridge.
The material of photoresists protection piece 30 can be Organic (organic insulator), can select photosensitive type epoxy resin POCA37 glue, POCA36 glue etc.The thickness of photoresists protection piece 30 can be 1 μ m～3 μ m.
Can find out that by Fig. 2 electrode layer 20 also comprises the lead-in wire zone 28 that is electrically connected with first direction electrode 22 and second direction electrode 24 respectively.
In conjunction with Fig. 2 and Fig. 3, can find out that the lead-in wire zone 28 of the capacitive touch screen shown in Fig. 3 is coated with photoresists protection piece 30.Can prevent lead-in wire zone 28 to be exposed to the external world like this and by air corrosion.
The preparation method of above-mentioned capacitive touch screen as shown in Figure 5 comprises the steps:
S10, the substrate 10 that deposits electrode layer 20 is provided.
As shown in Figure 3, electrode layer 20 comprises first direction electrode 22, second direction electrode 24 and a plurality of connecting bridge 26.First direction electrode 22 separates and keeps insulation through a plurality of connecting bridges 26 with second direction electrode 24.
The material of first direction electrode 22 and second direction electrode 24 can be ITO, and connecting bridge 26 can be MoAlMo electric bridge or ITO electric bridge.
S20, photoresists are uniformly coated on the electrode layer 20 of substrate 10.
The material of photoresists can be Organic (organic insulator), and concrete can be photosensitive type epoxy resin POCA37 glue, POCA36 glue etc.
The photoresists of S30, exposure connecting bridge 26 positions, remainder covers, and obtains being provided with and covering at interval the photoresists protection piece 30 on the connecting bridge 26.
Can adopt the mask mask that the photoresists of connecting bridge 26 positions are come out; Remainder covers, and in the time of through exposure machine, exposure light is blocked by part; Only stay the photoresists exposure of connecting bridge 26 positions, only demonstrate the photoresists protection piece 30 that is provided with at interval after the development.
The thickness of photoresists protection piece 30 can be 1 μ m～3 μ m.
In preferred embodiment, the photoresists of regional 28 positions that go between are also made public, and obtain covering the photoresists protection piece 30 (as shown in Figure 3) in lead-in wire zone 28 after the development.
S40, remove unexposed photoresists, obtain capacitive touch screen.
Remove unexposed photoresists, it is as shown in Figure 2 to obtain capacitive touch screen.After can reclaiming, unexposed photoresists utilize again.
The above embodiment has only expressed one or more embodiments of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
Claims (9)
1. a capacitive touch screen is characterized in that, comprises substrate, is arranged on the electrode layer on the said substrate surface and is arranged on a plurality of photoresists protection pieces on the said electrode layer;
Said electrode layer comprises first direction electrode, second direction electrode and a plurality of connecting bridge, and said first direction electrode and said second direction electrode separate and keep insulation through a plurality of said connecting bridges;
Said a plurality of photoresists protections block gap is arranged on the said electrode layer, and covers said connecting bridge.
2. capacitive touch screen as claimed in claim 1 is characterized in that, said photoresists protection piece is corresponding one by one with said connecting bridge.
3. capacitive touch screen as claimed in claim 1 is characterized in that, each said photoresists protection piece covers at least two said connecting bridges.
4. capacitive touch screen as claimed in claim 1 is characterized in that, said photoresists protection piece is rectangle, square, circle or oval.
5. capacitive touch screen as claimed in claim 1 is characterized in that, the material of said photoresists protection piece is an organic insulator.
6. capacitive touch screen as claimed in claim 1 is characterized in that, the thickness of said photoresists protection piece is 1 μ m～3 μ m.
7. capacitive touch screen as claimed in claim 1 is characterized in that, said connecting bridge is MoAlMo electric bridge or ITO electric bridge.
8. capacitive touch screen as claimed in claim 1 is characterized in that, the material of said first direction electrode and second direction electrode is ITO.
9. capacitive touch screen as claimed in claim 1 is characterized in that, said electrode layer also comprises respectively the lead-in wire zone that is connected with said second direction electrode electricity with said first direction electrode, and said lead-in wire zone is coated with photoresists protection piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200126097U CN202433880U (en) | 2012-01-11 | 2012-01-11 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200126097U CN202433880U (en) | 2012-01-11 | 2012-01-11 | Capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433880U true CN202433880U (en) | 2012-09-12 |
Family
ID=46783312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200126097U Expired - Lifetime CN202433880U (en) | 2012-01-11 | 2012-01-11 | Capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207710A (en) * | 2012-01-11 | 2013-07-17 | 深圳新视界光电技术有限公司 | Capacitive touch screen and preparation method thereof |
| CN103309539A (en) * | 2013-06-20 | 2013-09-18 | 深圳南玻伟光导电膜有限公司 | Capacitive touch screen provided with in OGS structure and fabrication method of capacitive touch screen |
-
2012
- 2012-01-11 CN CN2012200126097U patent/CN202433880U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207710A (en) * | 2012-01-11 | 2013-07-17 | 深圳新视界光电技术有限公司 | Capacitive touch screen and preparation method thereof |
| CN103207710B (en) * | 2012-01-11 | 2016-05-04 | 宜昌南玻显示器件有限公司 | Capacitive touch screen and preparation method thereof |
| CN103309539A (en) * | 2013-06-20 | 2013-09-18 | 深圳南玻伟光导电膜有限公司 | Capacitive touch screen provided with in OGS structure and fabrication method of capacitive touch screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN NEW VISION OPTOELECTRONICS TECHNOLOGY CO. Free format text: FORMER OWNER: CSG HOLDING CORPORATION Effective date: 20130521 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518047 SHENZHEN, GUANGDONG PROVINCE TO: 518057 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130521 Address after: 518057 Guangdong Province, Shenzhen high tech Zone of Nanshan District City, North Industrial Zone No. three road, CSG electronics building five floor Patentee after: Shenzhen New Horizons Optoelectronic Technology Co., Ltd. Address before: Six industrial intersection, Shekou Industrial Zone, Shenzhen, Guangdong, Nanshan District 518047, China Patentee before: CSG Holding Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160127 Address after: 443005 No. 38, Dalian Road, Yichang, Hubei Patentee after: YICHANG NANBO DISPLAY DEVICES CO., LTD. Address before: 518057 Guangdong Province, Shenzhen high tech Zone of Nanshan District City, North Industrial Zone No. three road, CSG electronics building five floor Patentee before: Shenzhen New Horizons Optoelectronic Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |