CN203397331U - Shielded-type capacitive touch screen - Google Patents
Shielded-type capacitive touch screen Download PDFInfo
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- CN203397331U CN203397331U CN201320188822.8U CN201320188822U CN203397331U CN 203397331 U CN203397331 U CN 203397331U CN 201320188822 U CN201320188822 U CN 201320188822U CN 203397331 U CN203397331 U CN 203397331U
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Abstract
The utility model discloses a shielded-type capacitive touch screen. The shielded-type capacitive touch screen comprises a glass substrate layer, a first plastic film layer with an ITO (indium tin oxide) sensing electrode layer and an LCD (liquid crystal display) screen located below the first plastic film layer, wherein the glass substrate layer is bonded with the first plastic film layer by an OCA (optical clear adhesive) layer, an organic silicon pressure-sensitive adhesive layer is bonded on the upper surface of the glass substrate layer, a conductive layer is coated on the surface back to the glass substrate layer, of the organic silicon pressure-sensitive adhesive layer, and a second plastic film layer is bonded on the surface back to the organic silicon pressure-sensitive adhesive layer, of the conductive layer; and the thickness of the organic silicon pressure-sensitive adhesive layer is 10-35 microns, the thickness of the conductive layer is 1-2 microns, and the roughness of the surface contacted with the glass substrate layer, of the organic silicon pressure-sensitive adhesive layer is 2.821-3.894 microns. The shielded-type capacitive touch screen disclosed by the utility model avoids the interference of the outside and realizes the function of shielding interference while keeping a high transmittance, and is provided with an automatic bubble-exhausting bonding function, thus facilitating operation and further improving definition.
Description
Technical field
The utility model relates to a kind of capacitance touch screen, relates in particular to a kind of shield type capacitance touch screen.
Background technology
Along with the high speed development of touch technology, the capacitive touch screen with multi-point touch function and stronger sensitivity is replacing traditional resistive touch screen gradually, obtains more and more application widely.The capacitive touch screen of prior art all adopts between finger and the electrode of inductive layer and realizes capacitive coupling, when finger touch is on metal level, due to people's bulk electric field, user and touch screen surface form with a coupling capacitance, for high-frequency current, electric capacity is direct conductor, so finger siphons away a very little electric current from contact point.This electric current divides in the electrode four jiaos from touch-screen and flows out, and the electric current of these four electrodes of flowing through is directly proportional to the distance at finger Dao Si angle, and controller, by the accurate Calculation to these four current ratios, draws the position of touch point.Higher just because of its sense of touch remolding sensitivity, when being vulnerable to external object at not use state, it disturbs, for example: mobile phone is placed in pocket, encounter because of carelessness touch-screen, may cause faulty operation, to user of service, bring puzzlement, or display do not using state, do not wishing that other people touch arbitrarily situations such as producing interference.
Summary of the invention
The utility model provides a kind of shield type capacitance touch screen, this shield type capacitance touch screen has kept high transmission rate simultaneously, has avoided extraneous its interference, has realized the effect that shielding is disturbed, and there is Automatic-exhausting pickle laminating, both facilitated operation also further to improve sharpness.
For achieving the above object, the technical solution adopted in the utility model is: a kind of shield type capacitance touch screen, comprise glass-based flaggy, there is the first plastic film layers of ITO sensing electrode layer and be positioned at the LCD liquid crystal display of the first plastic film layers below, bonding by OCA optics glue-line between described glass-based flaggy and the first plastic film layers
The bonding organic pressure-sensitive gel layer of upper surface of described glass-based flaggy, the opposing surface of this organic pressure-sensitive gel layer and glass-based flaggy is coated with conductive layer, and the opposing surface of this conductive layer and organic pressure-sensitive gel layer is bonded with the second plastic film layers; Described organic pressure-sensitive gel layer thickness is 10 ~ 35 μ m, and described conductive layer thickness is 1 ~ 2 μ m, and the surperficial surfaceness that described organic pressure-sensitive gel layer contacts with glass-based flaggy is 2.821 ~ 3.894 μ m.
In technique scheme, further improved technical scheme is as follows:
1. in such scheme, described conductive layer is 1:10 ~ 35 with organic pressure-sensitive gel layer thickness ratio.
2. in such scheme, the thickness of described the second plastic film layers is 50 ~ 125 μ m.
3. in such scheme, described the first plastic film layers, the second plastic film layers are PET film, polypropylene film, polyethylene film or polyvinyl chloride film.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utility model shield type capacitance touch screen, it comprises glass-based flaggy, first plastic film layers and the LCD liquid crystal display that is positioned at the first plastic film layers below with ITO sensing electrode layer, bonding by OCA optics glue-line between described glass-based flaggy and the first plastic film layers, the bonding organic pressure-sensitive gel layer of upper surface of described glass-based flaggy, the opposing surface of this organic pressure-sensitive gel layer and glass-based flaggy is coated with conductive layer, the opposing surface of this conductive layer and organic pressure-sensitive gel layer is bonded with the second plastic film layers, thereby having between shielding external object and the electrode of inductive layer, the conductive layer of the capacitive touch screen of said structure can not realize capacitive coupling, therefore external object acts on touch screen and can not have influence on its use, when staff is encountered induction electrode accidentally, laminating due to shielding interference protection film, intercept the capacitance variations between electrode and ground, thereby can not have influence on circuit integral capacitor characteristic, touch-screen can not be used.Thereby avoided the interference of external substance to it, realized the effect that shielding is disturbed; Secondly, the surperficial surfaceness that organic pressure-sensitive gel layer contacts with glass-based flaggy is 2.821 ~ 3.894 μ m, and exhaust bubble effect is good, and attaching process is easy, workable, has also further improved sharpness.
2. the utility model shield type capacitance touch screen, its organic pressure-sensitive gel layer thickness is 10 ~ 35 μ m, conductive layer thickness is 1 ~ 2 μ m, the thickness of the second plastic film layers is 100 ~ 125 μ m, conductive layer is 1:10 ~ 35 with organic pressure-sensitive gel layer thickness ratio, further strengthen high transmission rate, also optimized shielding jamming performance.
Accompanying drawing explanation
In above accompanying drawing: 1, glass-based flaggy; 2, the first plastic film layers; 3, LCD liquid crystal display; 4, OCA optics glue-line; 5, organic pressure-sensitive gel layer; 6, conductive layer; 7, the second plastic film layers.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment 1: a kind of shield type capacitance touch screen, comprise glass-based flaggy 1, there is the first plastic film layers 2 of ITO sensing electrode layer and be positioned at the LCD liquid crystal display 3 of the first plastic film layers 2 belows, bonding by OCA optics glue-line 4 between described glass-based flaggy 1 and the first plastic film layers 2
The bonding organic pressure-sensitive gel layer 5 of upper surface of described glass-based flaggy 1, the opposing surface of this organic pressure-sensitive gel layer 5 and glass-based flaggy 1 is coated with conductive layer 6, and the opposing surface of this conductive layer 6 and organic pressure-sensitive gel layer 5 is bonded with the second plastic film layers 7; Described organic pressure-sensitive gel layer 5 thickness are 10 ~ 35 μ m, and described conductive layer 6 thickness are 1 ~ 2 μ m, and the surperficial surfaceness that described organic pressure-sensitive gel layer 5 contacts with glass-based flaggy 1 is 3.3 ~ 3.5 μ m.
Above-mentioned conductive layer 3 is 1:28 with organic pressure-sensitive gel layer 4 Thickness Ratio.
The thickness of above-mentioned the second plastic film layers 7 is 120 μ m; Above-mentioned the first plastic film layers 2, the second plastic film layers 7 are polyethylene film PE.
Embodiment 2: a kind of shield type capacitance touch screen, comprise glass-based flaggy 1, there is the first plastic film layers 2 of ITO sensing electrode layer and be positioned at the LCD liquid crystal display 3 of the first plastic film layers 2 belows, bonding by OCA optics glue-line 4 between described glass-based flaggy 1 and the first plastic film layers 2
The bonding organic pressure-sensitive gel layer 5 of upper surface of described glass-based flaggy 1, the opposing surface of this organic pressure-sensitive gel layer 5 and glass-based flaggy 1 is coated with conductive layer 6, and the opposing surface of this conductive layer 6 and organic pressure-sensitive gel layer 5 is bonded with the second plastic film layers 7; Described organic pressure-sensitive gel layer 5 thickness are 10 ~ 35 μ m, and described conductive layer 6 thickness are 1 ~ 2 μ m, and the surperficial surfaceness that described organic pressure-sensitive gel layer 5 contacts with glass-based flaggy 1 is 2.89 ~ 2.92 μ m.
Above-mentioned conductive layer 3 is 1:10 ~ 35 with organic pressure-sensitive gel layer 4 Thickness Ratio.
The thickness of above-mentioned the second plastic film layers 7 is 105 μ m; Above-mentioned the first plastic film layers 2 is polyvinyl chloride film PVC, and the second plastic film layers 7 is PET film PET.
While adopting above-mentioned shield type capacitance touch screen, it comprises glass-based flaggy, first plastic film layers and the LCD liquid crystal display that is positioned at the first plastic film layers below with ITO sensing electrode layer, bonding by OCA optics glue-line between described glass-based flaggy and the first plastic film layers, the bonding organic pressure-sensitive gel layer of upper surface of described glass-based flaggy, the opposing surface of this organic pressure-sensitive gel layer and glass-based flaggy is coated with conductive layer, the opposing surface of this conductive layer and organic pressure-sensitive gel layer is bonded with the second plastic film layers, thereby having between shielding external object and the electrode of inductive layer, the conductive layer of the capacitive touch screen of said structure can not realize capacitive coupling, therefore external object acts on touch screen and can not have influence on its use, when staff is encountered induction electrode accidentally, laminating due to shielding interference protection film, intercept the capacitance variations between electrode and ground, thereby can not have influence on circuit integral capacitor characteristic, touch-screen can not be used.Thereby avoided the interference of external substance to it, realized the effect that shielding is disturbed; Secondly, the surperficial surfaceness that organic pressure-sensitive gel layer contacts with separating film layer is 2.821 ~ 3.894 μ m, and exhaust bubble effect is good, and attaching process is easy, workable, has also further improved sharpness; Again, its organic pressure-sensitive gel layer thickness is 10 ~ 35 μ m, and conductive layer thickness is 1 ~ 2 μ m, the thickness of the second plastic film layers is 100 ~ 125 μ m, conductive layer than for 1:10 ~ 35, has further strengthened high transmission rate with organic pressure-sensitive gel layer thickness, has also optimized shielding jamming performance.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (4)
1. a shield type capacitance touch screen, it is characterized in that: comprise glass-based flaggy (1), there is first plastic film layers (2) of ITO sensing electrode layer and be positioned at the LCD liquid crystal display (3) of the first plastic film layers (2) below, bonding by OCA optics glue-line (4) between described glass-based flaggy (1) and the first plastic film layers (2)
The bonding organic pressure-sensitive gel layer (5) of upper surface of described glass-based flaggy (1), the opposing surface of this organic pressure-sensitive gel layer (5) and glass-based flaggy (1) is coated with conductive layer (6), and the opposing surface of this conductive layer (6) and organic pressure-sensitive gel layer (5) is bonded with the second plastic film layers (7); Described organic pressure-sensitive gel layer (5) thickness is 10 ~ 35 μ m, and described conductive layer (6) thickness is 1 ~ 2 μ m, and the surperficial surfaceness that described organic pressure-sensitive gel layer (5) contacts with glass-based flaggy (1) is 2.821 ~ 3.894 μ m.
2. capacitance touch screen according to claim 1, is characterized in that: described conductive layer (3) is 1:10 ~ 35 with organic pressure-sensitive gel layer (4) Thickness Ratio.
3. capacitance touch screen according to claim 1, is characterized in that: the thickness of described the second plastic film layers (7) is 50 ~ 125 μ m.
4. according to the capacitance touch screen described in any one in claim 1 ~ 3, it is characterized in that: described the first plastic film layers (2), the second plastic film layers (7) are PET film, polypropylene film, polyethylene film or polyvinyl chloride film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320188822.8U CN203397331U (en) | 2013-04-15 | 2013-04-15 | Shielded-type capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320188822.8U CN203397331U (en) | 2013-04-15 | 2013-04-15 | Shielded-type capacitive touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN203397331U true CN203397331U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320188822.8U Expired - Lifetime CN203397331U (en) | 2013-04-15 | 2013-04-15 | Shielded-type capacitive touch screen |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796716A (en) * | 2020-06-28 | 2020-10-20 | 上海创功通讯技术有限公司 | Touch display screen, howling elimination method of touch display screen and electronic equipment |
-
2013
- 2013-04-15 CN CN201320188822.8U patent/CN203397331U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796716A (en) * | 2020-06-28 | 2020-10-20 | 上海创功通讯技术有限公司 | Touch display screen, howling elimination method of touch display screen and electronic equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
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| CX01 | Expiry of patent term |