CN105005424A - Touch screen with shielding function and manufacturing method of touch screen - Google Patents
Touch screen with shielding function and manufacturing method of touch screen Download PDFInfo
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- CN105005424A CN105005424A CN201510493246.1A CN201510493246A CN105005424A CN 105005424 A CN105005424 A CN 105005424A CN 201510493246 A CN201510493246 A CN 201510493246A CN 105005424 A CN105005424 A CN 105005424A
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Abstract
The invention discloses a touch screen with a shielding function. The touch screen includes a capacitive touch screen, an FPC board and an ITO shielding layer, wherein the ITO shielding layer is adhered to the back of the capacitive touch screen through OCA glue; the FPC board is positioned at the bottom of the capacitive touch screen; the ITO shielding layer positioned on the visual area of the capacitive touch screen includes a low-resistance silk-printing wire layer surrounding the visual area, and the resistance of the silk-printing wire layer is smaller than 100 Ohms; the low-resistance silk-printing wire layer is electrically connected with the ground wire of the FPC board. According to the invention, the low-resistance silk-printing wire layer which has the shielding function is additionally arranged at the periphery of the visual area of the touch screen, and the low-resistance silk-printing wire layer is electrically connected with the ground wire, so that the interference from the interference source at the bottom of the touch screen is shielded; the touch screen is simple in structure and remarkable in shielding effect; the industrial production is facilitated.
Description
Technical field
The present invention relates to a kind of touch-screen with function of shielding and preparation method thereof.
Background technology
At industrial circle, for making display screen more reliable, the cover plate of demand touch-screen is thicker (is generally greater than 2mm, even reach 6mm), but cover plate is blocked up, touch-screen needs the sensitivity of superelevation, but is also more prone to the interference (as TFT display screen, OLED display screen) being subject to interference source bottom touch-screen, to such an extent as to touch-screen cannot work normally, occur that touch-screen is reported a little or the breakneck bad phenomenon such as insensitive automatically.
For reducing the interference of touch-screen, usually need to add a screen layer at the bottom of touch-screen.Traditional settling mode only has ITO layer at screen layer.Adopt this kind of mode, although there is certain effect, but because the resistance of ITO can not be less than 100/mm2, the effect of screen layer is very limited, and ITO is subject to the impact of technique (as high temperature, friction), resistance will increase, and increase several times sometimes, cause the shield effectiveness of screen layer poorer, the requirement of industrial application cannot be met.
Summary of the invention
For overcoming the deficiencies in the prior art, the present invention relates to a kind of touch-screen with function of shielding.
Technical scheme provided by the invention is:
Have a touch-screen for function of shielding, comprise capacitance touch screen, FPC circuit board and ITO screen layer, described ITO screen layer is affixed on the back side of capacitance touch screen by OCA glue, described FPC circuit board is positioned at the bottom of capacitance touch screen, it is characterized in that:
The ITO screen layer be positioned on the visible area of capacitance touch screen comprises one and is less than the low-resistance silk-screen line layer of 100 Ω and described low-resistance silk-screen line layer is electrically connected with the ground wire of FPC circuit board around the resistance of visible area.
Preferably, described ITO screen layer is the ITO screen layer of whole.
Preferably, the resistance of described ITO screen layer is 80 Ω ~ 300 Ω/mm
2.
Preferably, the ground wire of described FPC circuit board is electrically connected with low-resistance silk-screen line layer by ACF adhesive tape.
Preferably, described low-resistance silk-screen silk layer is silver slurry silk-screen line.
Invention also provides a kind of method for making of touch-screen:
(1) on the glass by the mode of silk-screen low-resistance silk-screen filament being printed to face, ITO screen layer place and hot setting low-resistance silk-screen line; Wherein said low-resistance silk-screen line is silver slurry silk-screen line;
(2) under the condition of hundred grades of clean quiet degree, obtained ITO screen layer is fitted by adhesive and touch-screen; Wherein said adhesive is OCA or glue;
(3) by conducting resinl the FPC ground wire of touch-screen is bonded to the low-resistance silk-screen line in ITO shielding; Wherein, conducting resinl is ACF conducting resinl.
Beneficial effect of the present invention:
The present invention adds the low-resistance silk-screen line layer that plays function of shielding around the visible area of touch-screen, and low-resistance silk-screen line layer is electrically connected with ground wire, shields the interference from interference source bottom touch-screen like this, and structure simple effects is remarkable, is convenient to commercial production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, a kind of touch-screen with function of shielding, described capacitance touch screen 1 can be the isostructural touch panel device of DITO, SITO, comprises cover plate and induction SENSOR etc., the preferred DITO of the present invention.The frame place of the visible area surrounding around capacitance touch screen 1 comprises the rectangular shield line layer that a circle is formed by low-resistance silk-screen line layer 2, and its medium or low resistance silk-screen line layer 2 is silver slurry silk-screen line.Low-resistance silk-screen line layer 2 is positioned on the ITO screen layer at capacitance touch screen 1 back side, and low-resistance silk-screen line layer 2 is electrically connected with the ground wire of FPC circuit board 3 by ACF conductive tape or low resistivity conductor 4.The resistance of its medium or low resistance silk-screen line layer is less than 100 Ω, and the resistance of described ITO screen layer is 80 Ω ~ 300 Ω/mm
2, ITO screen layer is the ITO screen layer of whole.
Invention also provides a kind of method for making of touch-screen:
(1) on the glass by the mode of silk-screen low-resistance silk-screen filament being printed to face, ITO screen layer place and hot setting low-resistance silk-screen line; Wherein said low-resistance silk-screen line is silver slurry silk-screen line;
(2) under the condition of hundred grades of clean quiet degree, obtained ITO screen layer is fitted by adhesive and touch-screen; Wherein said adhesive is OCA or glue;
(3) by conducting resinl the FPC ground wire of touch-screen is bonded to the low-resistance silk-screen line in ITO shielding; Wherein, conducting resinl is ACF conducting resinl.
Claims (6)
1. have a touch-screen for function of shielding, comprise capacitance touch screen, FPC circuit board and ITO screen layer, described ITO screen layer is affixed on the back side of capacitance touch screen by OCA glue, described FPC circuit board is positioned at the bottom of capacitance touch screen, it is characterized in that:
The ITO screen layer be positioned on the visible area of capacitance touch screen comprises one and is less than the low-resistance silk-screen line layer of 100 Ω and described low-resistance silk-screen line layer is electrically connected with the ground wire of FPC circuit board around the resistance of visible area.
2. the touch-screen with function of shielding according to claim 1, is characterized in that:
Described ITO screen layer is the ITO screen layer of whole.
3. the touch-screen with function of shielding according to claim 1, is characterized in that:
The resistance of described ITO screen layer is 80 Ω ~ 300 Ω/mm
2.
4. the touch-screen with function of shielding according to claim 1, is characterized in that:
The ground wire of described FPC circuit board is electrically connected with low-resistance silk-screen line layer by ACF adhesive tape.
5. the touch-screen with function of shielding according to claim 1, is characterized in that:
Described low-resistance silk-screen silk layer is silver slurry silk-screen line.
6. there is a method for making for the touch-screen of function of shielding, it is characterized in that:
(1) on the glass by the mode of silk-screen low-resistance silk-screen filament being printed to face, ITO screen layer place and hot setting low-resistance silk-screen line; Wherein said low-resistance silk-screen line is silver slurry silk-screen line;
(2) under the condition of hundred grades of clean quiet degree, obtained ITO screen layer is fitted by adhesive and touch-screen; Wherein said adhesive is OCA or glue;
(3) by conducting resinl the FPC ground wire of touch-screen is bonded to the low-resistance silk-screen line in ITO shielding; Wherein, conducting resinl is ACF conducting resinl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493246.1A CN105005424A (en) | 2015-08-12 | 2015-08-12 | Touch screen with shielding function and manufacturing method of touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493246.1A CN105005424A (en) | 2015-08-12 | 2015-08-12 | Touch screen with shielding function and manufacturing method of touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105005424A true CN105005424A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510493246.1A Pending CN105005424A (en) | 2015-08-12 | 2015-08-12 | Touch screen with shielding function and manufacturing method of touch screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN105005424A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106775169A (en) * | 2017-01-18 | 2017-05-31 | 刘肖俊 | A kind of high sensitivity multiple spot capacitive cell phone touch-screen |
| CN109992160A (en) * | 2019-03-29 | 2019-07-09 | 云谷（固安）科技有限公司 | Touch-control display panel and touch control display apparatus |
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| JP2009086184A (en) * | 2007-09-28 | 2009-04-23 | Casio Comput Co Ltd | Liquid crystal display device with touch panel |
| CN201465086U (en) * | 2009-07-03 | 2010-05-12 | 深圳市汇顶科技有限公司 | Anti-interference capacitive touch screen and electronic device |
| CN102866800A (en) * | 2011-07-07 | 2013-01-09 | 三星电子株式会社 | Touch screen panel liquid crystal display device |
| CN104298413A (en) * | 2014-11-14 | 2015-01-21 | 张家港康得新光电材料有限公司 | Capacitive touch screen |
| CN205091724U (en) * | 2015-08-12 | 2016-03-16 | 深圳晶华显示器材有限公司 | Touch -sensitive screen with blocking function |
-
2015
- 2015-08-12 CN CN201510493246.1A patent/CN105005424A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009086184A (en) * | 2007-09-28 | 2009-04-23 | Casio Comput Co Ltd | Liquid crystal display device with touch panel |
| CN201465086U (en) * | 2009-07-03 | 2010-05-12 | 深圳市汇顶科技有限公司 | Anti-interference capacitive touch screen and electronic device |
| CN102866800A (en) * | 2011-07-07 | 2013-01-09 | 三星电子株式会社 | Touch screen panel liquid crystal display device |
| CN104298413A (en) * | 2014-11-14 | 2015-01-21 | 张家港康得新光电材料有限公司 | Capacitive touch screen |
| CN205091724U (en) * | 2015-08-12 | 2016-03-16 | 深圳晶华显示器材有限公司 | Touch -sensitive screen with blocking function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106775169A (en) * | 2017-01-18 | 2017-05-31 | 刘肖俊 | A kind of high sensitivity multiple spot capacitive cell phone touch-screen |
| CN106775169B (en) * | 2017-01-18 | 2018-04-17 | 深圳唯一科技股份有限公司 | A kind of high sensitivity multiple spot capacitive cell phone touch-screen |
| CN109992160A (en) * | 2019-03-29 | 2019-07-09 | 云谷（固安）科技有限公司 | Touch-control display panel and touch control display apparatus |
| CN109992160B (en) * | 2019-03-29 | 2022-04-15 | 云谷（固安）科技有限公司 | Touch display panel and touch display device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |
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| WD01 | Invention patent application deemed withdrawn after publication |