CN203658986U - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
- Publication number
- CN203658986U CN203658986U CN201320874423.7U CN201320874423U CN203658986U CN 203658986 U CN203658986 U CN 203658986U CN 201320874423 U CN201320874423 U CN 201320874423U CN 203658986 U CN203658986 U CN 203658986U
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- CN
- China
- Prior art keywords
- touch screen
- layer
- capacitive touch
- bonding pad
- conductive layer
- 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
Links
- 230000001939 inductive effect Effects 0.000 claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 74
- 238000009413 insulation Methods 0.000 claims description 28
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract 4
- 238000012360 testing method Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
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- Elimination Of Static Electricity (AREA)
Abstract
A capacitive touch screen comprises an inductive layer, an insulating rubber layer, a flexible circuit board, a metal line and a protective panel. The inductive layer comprises a substrate and at least one conductive layer arranged on the surface of the substrate. The insulating rubber layer adheres to the inductive layer. The flexible circuit board comprises a body and a combining sheet. The body comprises a combining sheet area. The combining sheet is arranged on the combining sheet area. The combining sheet adheres to the side surface of the inductive layer, which adheres to the insulating rubber layer. A gap is formed between the combining sheet area and the inductive layer. The conductive layer is connected with the combining sheet through the metal line, so that the inductive layer and the flexible circuit board are electrically connected. The protective panel has a plate-shaped structure. The protective panel adheres to the side surface of the insulating rubber layer, which opposes the inductive layer. The inductive layer, the insulating rubber layer and the protective panel are successively laminated. The insulating rubber layer extends and fills the gap. The capacitive touch screen can effectively protect the metal lead of the combining sheet area, and prevents electrostatic breakdown of the capacitive touch screen.
Description
Technical field
The utility model relates to touch screen technology, particularly relates to a kind of capacitive touch screen.
Background technology
The most important development trend of manufacturing industry post-industrial age that intellectuality being.Touch-screen preferably resolves the man-machine interaction bottleneck problem in Intelligent Process, and taking smart mobile phone as typical case, changes its business model, has promoted whole industrial chain to develop in a healthy way, and therefore has bright prospects.Because touch-screen has the advantages such as directly perceived, simple, quick, it has become the main flow input equipment that improves man machine operation interface, and touch-screen has been widely used in the electronic products such as mobile phone, PDA, multimedia.Press touch sensible principle, existing touch-screen is mainly divided into resistance-type, condenser type, surperficial infrared type touch-screen.Wherein, that capacitive touch screen has is simple in structure, transmittance is high, rub resistance, resistance to ambient humidity temperature variation, long service life, can realize the advantages such as multiple point touching, and day by day becomes market centre and the market focus of touch-screen.
Capacitive touch screen is a kind of new touch screen technology, mainly formed by drive electrode and receiving electrode, drive electrode sends low-voltage high-frequency signal and projects receiving electrode and form stable electric current, in the time that human body touches capacitance plate, due to human body grounding, finger just forms an equivalent capacity with capacitance plate, and high-frequency signal can flow into ground wire by this equivalent capacity, the quantity of electric charge that receiving end receives thus reduces, and in the time pointing the closer to transmitting terminal, electric charge reduces more obvious, and the strength of current finally receiving according to receiving end is determined touched point.
Drive electrode and receiving electrode are led to behind bonding pad (bonding pad) region by peripheral metal cabling, are connected with flexible circuit board.For traditional capacitive touch screen, its land is without any protection.In the time carrying out Electrostatic Discharge test, static easily enters by gap, and then punctures the plain conductor in bonding pad region, causes capacitive touch screen to be scrapped.
Utility model content
Based on this, be necessary to provide a kind of capacitive touch screen that can effectively protect bonding pad regional metal wire.
A kind of capacitive touch screen, comprising:
Inductive layer, comprises substrate and is located at least one deck conductive layer of described substrate surface;
Insulation glue-line, is attached on described inductive layer;
Flexible circuit board, comprise main body and bonding pad, in described main body, comprise bonding pad region, described bonding pad is arranged on described bonding pad region, described bonding pad fits on the side that described inductive layer and described insulation glue-line fit, so that described flexible circuit board and described insulation glue-line are together positioned at the same side of described inductive layer, between described bonding pad region and described inductive layer, form gap;
Metal routing, described conductive layer is connected with described bonding pad by described metal routing, so that described inductive layer is electrically connected with described flexible circuit board; And
Protection panel, is platy structure, described protection panel fit in described insulation glue-line and described inductive layer back to side on, described inductive layer, described insulation glue-line and described protection panel stack gradually, described insulation glue-line extends and is full of described gap.
In an embodiment, be also coated with different side's conducting resinl on described bonding pad therein, described metal routing is connected with described bonding pad by described different side's conducting resinl.
In an embodiment, described insulation glue-line is solid state optics pressure-sensitive adhesive layer therein.
In an embodiment, described protection panel is glass protection panel therein.
In an embodiment, described protection panel is organic plastics protection panel therein.
In an embodiment, described organic plastics protection panel is PC plate or PMMA plate therein.
In an embodiment, described conductive layer is at least one in ITO conductive layer, metal grill conductive layer, graphene conductive layer and carbon nanotube conducting layer therein.
In an embodiment, described metal grill conductive layer is at least one in silver conductive layer, copper conductive layer and aluminium conductive layer therein.
In an embodiment, described substrate is substrate of glass or resin film substrate therein.
In an embodiment, described metal routing is at least one in silver-colored cabling, copper cabling, Mo-Al-Mo cabling and ITO cabling therein.
Above-mentioned capacitive touch screen; compared with traditional capacitive touch screen; its insulation glue-line extends; and be full of between bonding pad region and inductive layer and form gap; in electrostatic test; insulation glue-line has effectively intercepted the static that electrostatic test produces, and effectively protects bonding pad regional metal wire, prevents that capacitive touch screen is by electrostatic breakdown.
Brief description of the drawings
Fig. 1 is the partial sectional view of the capacitive touch screen in the utility model preferred embodiment;
Fig. 2 is the partial sectional view of another angle of capacitive touch screen shown in Fig. 1.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.In accompanying drawing, provide preferred embodiments of the present utility model.But the utility model can be realized in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiments is make the disclosure of the present utility model understand more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, it can be directly on another element or also can have an element placed in the middle.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology that use are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present utility model with scientific terminology.The term using in instructions of the present utility model herein, just in order to describe the object of concrete embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Refer to Fig. 1, the capacitive touch screen 100 in the utility model preferred embodiment, comprises inductive layer 110, insulation glue-line 120, flexible circuit board 130, metal routing (figure does not look) and protection panel 140.
Inductive layer 110 comprises substrate (figure is mark not) and conductive layer (figure does not look).Substrate is layer structure.Substrate is one deck at least.Concrete, substrate can be substrate of glass, also can be film substrate.Conductive layer is distributed in the surface of substrate.Conductive layer comprises drive electrode and receiving electrode.
Specifically in the present embodiment, conductive layer can be at least one in ITO conductive layer, metal grill conductive layer, graphene conductive layer and carbon nanotube conducting layer, wherein, in the time that conductive layer is metal grill conductive layer, its metal grill conductive layer is specially at least one in silver conductive layer, copper conductive layer and aluminium conductive layer.Whether, when work, outside control chip (figure depending on) sends signal to conductive layer, exist and touch and the particular location of existing touch to identify capacitive touch screen 100.
Insulation glue-line 120 is attached on inductive layer 110.Insulation glue-line 120 is solid state optics pressure-sensitive adhesive layer, has good insulating property.Concrete, the principal ingredient of insulation glue-line 120 is esters of acrylic acid.
Flexible circuit board 130 comprises main body 132 and bonding pad 134(bonding pad).In main body 132, comprise bonding pad region 132a.Bonding pad 134 is arranged on the 132a of bonding pad region.Bonding pad region 132a is the region being connected with inductive layer 110, on the side that bonding pad 134 fits in inductive layer 110 and the glue-line 120 that insulate fits, so that flexible circuit board 130 and insulation glue-line 120 1 are located on the same side of inductive layer 110.Because bonding pad 134 has certain thickness, make to form gap between bonding pad region 132a and inductive layer 110.
Conductive layer is connected with bonding pad 134 by metal routing, so that inductive layer 110 is electrically connected with flexible circuit board 130.Specifically in the present embodiment, be also coated with different side's conducting resinl (figure does not look) on the 132a of bonding pad region, metal routing is connected with bonding pad region 132a by different side's conducting resinl.
Metal routing is at least one in silver-colored cabling, copper cabling, Mo-Al-Mo cabling and ITO cabling.Conductive layer is connected with bonding pad 134 by metal routing, so that inductive layer 110 is electrically connected with flexible circuit board 130.Specifically in the present embodiment, be also coated with different side's conducting resinl on the 132a of bonding pad region, metal routing is connected with bonding pad 134 by different side's conducting resinl.
Protection panel 140 is platy structure.Protection panel 140 can be glass protection panel, also can be organic plastics protection panel.Concrete, in the time that protection panel 140 is protected panel for organic plastics, organic plastics protection panel is PC plate or PMMA plate.
Protection panel 140 fit in insulation glue-line 120 and inductive layer 110 back to side on.Inductive layer 110, insulation glue-line 120 and protection panel 140 stack gradually.
Owing to forming gap between the bonding pad region 132a of flexible circuit board 130 and inductive layer 110, in the time carrying out electrostatic discharge testing, static easily enters by this gap, and then punctures the plain conductor on the 132a of bonding pad region.In order to address the above problem, see also Fig. 2, insulation glue-line 120 extends, and is full of between bonding pad region 132a and inductive layer 110 and forms gap.After gap is filled, due to the insulation characterisitic of insulation glue-line 120, make in electrostatic test, the static of generation is insulated glue-line 120 and intercepts, anti-effectively protection in conjunction with the plain conductor on panel region 132a.
Above-mentioned capacitive touch screen 100; compared with traditional capacitive touch screen 100; its insulation glue-line 120 extends; and be full of between bonding pad region 132a and inductive layer 110 and form gap; in electrostatic test; insulation glue-line 120 has effectively intercepted the static that electrostatic test produces, and effectively protects bonding pad region 132a plain conductor, prevents that capacitive touch screen 100 is by electrostatic breakdown.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a capacitive touch screen, is characterized in that, comprising:
Inductive layer, comprises substrate and is located at least one deck conductive layer of described substrate surface;
Insulation glue-line, is attached on described inductive layer;
Flexible circuit board, comprise main body and bonding pad, in described main body, comprise bonding pad region, described bonding pad is arranged on described bonding pad region, described bonding pad fits on the side that described inductive layer and described insulation glue-line fit, so that described flexible circuit board and described insulation glue-line are together positioned at the same side of described inductive layer, between described bonding pad region and described inductive layer, form gap;
Metal routing, described conductive layer is connected with described bonding pad by described metal routing, so that described inductive layer is electrically connected with described flexible circuit board; And
Protection panel, is platy structure, described protection panel fit in described insulation glue-line and described inductive layer back to side on, described inductive layer, described insulation glue-line and described protection panel stack gradually, described insulation glue-line extends and is full of described gap.
2. capacitive touch screen according to claim 1, is characterized in that, is also coated with different side's conducting resinl on described bonding pad, and described metal routing is connected with described bonding pad by described different side's conducting resinl.
3. capacitive touch screen according to claim 1, is characterized in that, described insulation glue-line is solid state optics pressure-sensitive adhesive layer.
4. capacitive touch screen according to claim 1, is characterized in that, described protection panel is glass protection panel.
5. capacitive touch screen according to claim 1, is characterized in that, described protection panel is organic plastics protection panel.
6. capacitive touch screen according to claim 5, is characterized in that, described organic plastics protection panel is PC plate or PMMA plate.
7. capacitive touch screen according to claim 1, is characterized in that, described conductive layer is at least one in ITO conductive layer, metal grill conductive layer, graphene conductive layer and carbon nanotube conducting layer.
8. capacitive touch screen according to claim 7, is characterized in that, described metal grill conductive layer is at least one in silver conductive layer, copper conductive layer and aluminium conductive layer.
9. capacitive touch screen according to claim 1, is characterized in that, described substrate is substrate of glass or resin film substrate.
10. capacitive touch screen according to claim 1, is characterized in that, described metal routing is at least one in silver-colored cabling, copper cabling, Mo-Al-Mo cabling and ITO cabling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874423.7U CN203658986U (en) | 2013-12-27 | 2013-12-27 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874423.7U CN203658986U (en) | 2013-12-27 | 2013-12-27 | Capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658986U true CN203658986U (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320874423.7U Expired - Lifetime CN203658986U (en) | 2013-12-27 | 2013-12-27 | Capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203658986U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117420A1 (en) * | 2014-07-23 | 2015-08-13 | 中兴通讯股份有限公司 | Capacitive touchscreen, terminal, intercommunication method and corresponding program and carrier |
| CN106157581A (en) * | 2015-04-14 | 2016-11-23 | 南昌欧菲光学技术有限公司 | Solar energy type touch-control remote controller |
| CN107562246A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲光科技有限公司 | Touch screen and electronic equipment |
-
2013
- 2013-12-27 CN CN201320874423.7U patent/CN203658986U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117420A1 (en) * | 2014-07-23 | 2015-08-13 | 中兴通讯股份有限公司 | Capacitive touchscreen, terminal, intercommunication method and corresponding program and carrier |
| CN105278767A (en) * | 2014-07-23 | 2016-01-27 | 中兴通讯股份有限公司 | Capacitive touch screen, terminal and inter-terminal interconnection communication method |
| CN106157581A (en) * | 2015-04-14 | 2016-11-23 | 南昌欧菲光学技术有限公司 | Solar energy type touch-control remote controller |
| CN107562246A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲光科技有限公司 | Touch screen and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 330013 HUANGJIAHU Road, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee after: NANCHANG OFILM OPTICAL TECHNOLOGY Co.,Ltd. Patentee after: Nanchang OFilm Tech. Co.,Ltd. Patentee after: Ophiguang Group Co.,Ltd. Patentee after: SUZHOU OFILM TECH Co.,Ltd. Address before: 330013 HUANGJIAHU Road, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee before: NANCHANG OFILM OPTICAL TECHNOLOGY Co.,Ltd. Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: OFilm Tech Co.,Ltd. Patentee before: SUZHOU OFILM TECH Co.,Ltd. Address after: 330013 HUANGJIAHU Road, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee after: NANCHANG OFILM OPTICAL TECHNOLOGY Co.,Ltd. Patentee after: Nanchang OFilm Tech. Co.,Ltd. Patentee after: OFilm Tech Co.,Ltd. Patentee after: SUZHOU OFILM TECH Co.,Ltd. Address before: 330013 HUANGJIAHU Road, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee before: NANCHANG OFILM OPTICAL TECHNOLOGY Co.,Ltd. Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: Shenzhen OFilm Tech Co.,Ltd. Patentee before: SUZHOU OFILM TECH Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210415 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 330013 HUANGJIAHU Road, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee before: NANCHANG OFILM OPTICAL TECHNOLOGY Co.,Ltd. Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: Ophiguang Group Co.,Ltd. Patentee before: SUZHOU OFILM TECH Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
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| CX01 | Expiry of patent term |