CN101650621A - Electromagnetic shielding surface acoustic wave touch screen - Google Patents
Electromagnetic shielding surface acoustic wave touch screen Download PDFInfo
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- CN101650621A CN101650621A CN200910035119A CN200910035119A CN101650621A CN 101650621 A CN101650621 A CN 101650621A CN 200910035119 A CN200910035119 A CN 200910035119A CN 200910035119 A CN200910035119 A CN 200910035119A CN 101650621 A CN101650621 A CN 101650621A
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- wave touch
- touch screen
- acoustic wave
- surface acoustic
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Abstract
The invention discloses an electromagnetic shielding surface acoustic wave touch screen, comprising a surface acoustic wave touch screen body and a signal energy-conversion device, the signal energy-conversion device is fixed on the surface acoustic wave touch screen body; the electromagnetic shielding surface acoustic wave touch screen is characterized in that: the electromagnetic shielding surface acoustic wave touch screen also comprises an electricity-conduction shielding layer and a shielding electricity-conduction electrode which are conducted, and the electricity-conduction shielding layer is attached on the surface of the surface acoustic wave touch screen body. The electromagnetic compatibility exists between the surface acoustic wave touch screen and electronic and electrical equipment by the electricity-conduction shielding layer and the shielding electricity-conduction electrode, thereby not generating electromagnetic interference and irregular electromagnetic radiation andbeing very suitable for occasions which have higher requirements to the environments with electromagnetic compatibility. In addition, the electricity-conduction shielding layer and the shielding electricity-conduction electrode have wear-resisting property, the service life is prolonged; meanwhile, the electromagnetic shielding surface acoustic wave touch screen is beneficial to body health and is in accordance with environmental-protection requirements.
Description
Technical field
The present invention relates to a kind of touch panel device, especially relate to a kind of surface wave touch-screens with electro-magnetic screen function.
Background technology
Existing common surface wave touch-screens only designs and produces for the touch function of realizing itself, and touch-screen is in installing and using, it physically need be assembled in electronics, on the man-machine interface window of electrical equipment, common surface wave touch-screens has often been ignored electronics, the consideration of the electromagnetic compatible environment of electrical equipment, cause the generation of electromagnetic interference (EMI) and electromagnetic radiation phenomenon lack of standardization, especially to military, medical treatment, the occasion that strict Industry Control etc. are had relatively high expectations to electromagnetic compatible environment, common surface wave touch-screens is difficult to satisfy its requirement, can not meet health simultaneously, the request for utilization of environmental protection.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of be beneficial to health, compliance with environmental protection requirements and realized surface wave touch-screens and the electromagnetic compatibility of electronics, electrical equipment at electromagnetic shielding surface acoustic wave touch screen.
The present invention is achieved through the following technical solutions:
A kind of electromagnetic shielding surface acoustic wave touch screen, comprise surface wave touch-screens body and signal transducing head, the signal transducing head is fixed on the surface wave touch-screens body, it is characterized in that: also comprise conductive shielding layer and screening conductive electrode, screening conductive electrode (4) is connected with conductive shielding layer (3) conducting, and conductive shielding layer is attached on the surface of surface wave touch-screens body.
The material of above-mentioned conductive shielding layer is any electrically conducting transparent material in metallic film, conductive plastics film and the ITO film or is nontransparent conductive material such as aluminium foil.
The material of above-mentioned screening conductive electrode is any in metallic film, conductive plastics film, ITO film, aluminium foil, conductive glue, the conductive rubber.
The attaching mode of above-mentioned conductive shielding layer and surface wave touch-screens body is any in mechanical overlapping assembling, stickup, spraying, the plated film mode.
Above-mentioned conductive shielding layer is attached to the combination of the front of surface wave touch-screens body or the back side or front and back or all on the outside surface.
The invention has the beneficial effects as follows: conductive shielding layer of the present invention and screening conductive electrode make to have Electro Magnetic Compatibility between surface wave touch-screens and electronics, the electrical equipment, thereby can not produce electromagnetic interference (EMI) and electromagnetic radiation phenomenon lack of standardization, be highly suitable for the occasion that electromagnetic compatible environment is had relatively high expectations.In addition, conductive shielding layer of the present invention and screening conductive electrode also have anti-wear performance, have prolonged its serviceable life, and the present invention simultaneously also helps health, and meets environmental protection requirement.
Description of drawings
Fig. 1 is the split structural representation of one embodiment of the invention;
Fig. 2 is the structural representation of the embodiment of the invention one;
Fig. 3 is the structural representation of the embodiment of the invention two;
Fig. 4 is the structural representation of the embodiment of the invention three;
Fig. 5 is the structural representation of the embodiment of the invention four.
Main Reference numeral implication among the figure:
1, surface wave touch-screens body 2, signal transducing head 3, conductive shielding layer
4, screening conductive electrode
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
Fig. 1 is the split structural representation of one embodiment of the invention.
As shown in Figure 1: electromagnetic shielding surface acoustic wave touch screen, comprise surface wave touch-screens body 1, signal transducing head 2, conductive shielding layer 3 and screening conductive electrode 4, signal transducing head 2 is fixed on the surface wave touch-screens body 1, screening conductive electrode (4) is connected with conductive shielding layer (3) conducting, and conductive shielding layer 3 is attached on the surface of surface wave touch-screens body 1.
The material of above-mentioned conductive shielding layer 3 is any electrically conducting transparent material in metallic film, conductive plastics film and the ITO film or is nontransparent conductive material such as aluminium foil.
The material of above-mentioned screening conductive electrode 4 is any in metallic film, conductive plastics film, ITO film, aluminium foil, conductive glue, the conductive rubber.
Further, the attaching mode of above-mentioned conductive shielding layer 3 and surface wave touch-screens body 1 is any in mechanical overlapping assembling, stickup, spraying, the plated film mode.
Fig. 2 is the structural representation of the embodiment of the invention one.
Embodiment 1:
As shown in Figure 2: electromagnetic shielding surface acoustic wave touch screen, comprise surface wave touch-screens body 1, signal transducing head 2, conductive shielding layer 3 and screening conductive electrode 4, signal transducing head 2 is fixed on the surface wave touch-screens body 1, and the conductive shielding layer 3 of subsidiary screening conductive electrode 4 is by on the overlapping front that is assembled in surface wave touch-screens body 1 of machinery, wherein, the material of screening conductive electrode 1 is a metallic film, it is electrically connected with surface wave touch-screens body 1, and the material of conductive shielding layer 3 also is a metallic film.
Fig. 3 is the structural representation of the embodiment of the invention two.
Embodiment 2:
As shown in Figure 3: electromagnetic shielding surface acoustic wave touch screen, comprise surface wave touch-screens body 1, signal transducing head 2, conductive shielding layer 3 and screening conductive electrode 4, signal transducing head 2 is fixed on the surface wave touch-screens body 1, and the conductive shielding layer 3 of subsidiary screening conductive electrode 4 sticks on the back side of surface wave touch-screens body 1, wherein, the material of screening conductive electrode 1 is the conductive plastics film, it is electrically connected with surface wave touch-screens body 1, and the material of conductive shielding layer 3 also is the conductive plastics film.
Fig. 4 is the structural representation of the embodiment of the invention three.
Embodiment 3:
As shown in Figure 4: electromagnetic shielding surface acoustic wave touch screen, comprise surface wave touch-screens body 1, signal transducing head 2, conductive shielding layer 3 and screening conductive electrode 4, signal transducing head 2 is fixed on the surface wave touch-screens body 1, and the conductive shielding layer 3 of subsidiary screening conductive electrode 4 is sprayed on the front and back of surface wave touch-screens body 1, wherein, the material of screening conductive electrode 1 is the ITO film, and it is electrically connected with surface wave touch-screens body 1, and the material of conductive shielding layer 3 also is the ITO film.
Fig. 5 is the structural representation of the embodiment of the invention four.
Embodiment 3:
As shown in Figure 5: electromagnetic shielding surface acoustic wave touch screen, comprise surface wave touch-screens body 1, signal transducing head 2, conductive shielding layer 3 and screening conductive electrode 4, signal transducing head 2 is fixed on the surface wave touch-screens body 1, and the mode of the conductive shielding layer 3 of subsidiary screening conductive electrode 4 by plated film is attached on whole outside surfaces of surface wave touch-screens body 1, wherein, the material of screening conductive electrode 1 is an aluminium foil, it is electrically connected with surface wave touch-screens body 1, and the material of conductive shielding layer 3 also is an aluminium foil.
By conductive shielding layer 3 is set on electromagnetic shielding surface acoustic wave touch screen, make and have Electro Magnetic Compatibility between surface wave touch-screens and electronics, the electrical equipment, thereby can not produce electromagnetic interference (EMI) and electromagnetic radiation phenomenon lack of standardization, be highly suitable for the occasion that electromagnetic compatible environment is had relatively high expectations.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (9)
1, a kind of electromagnetic shielding surface acoustic wave touch screen, comprise surface wave touch-screens body (1) and signal transducing head (2), the signal transducing head is fixed on the surface wave touch-screens body (1), it is characterized in that: also comprise conductive shielding layer (3) and screening conductive electrode (4), screening conductive electrode (4) is connected with conductive shielding layer (3) conducting, and conductive shielding layer (3) is attached on the surface of surface wave touch-screens body (1).
2, electromagnetic shielding surface acoustic wave touch screen according to claim 1 is characterized in that: the material of described conductive shielding layer (3) is any electrically conducting transparent material in metallic film, conductive plastics film and the ITO film.
3, electromagnetic shielding surface acoustic wave touch screen according to claim 1 is characterized in that: the material of described conductive shielding layer (3) is the nontransparent conductive material of aluminium foil.
4, electromagnetic shielding surface acoustic wave touch screen according to claim 1 is characterized in that: the material of described screening conductive electrode (4) is any in metallic film, conductive plastics film, ITO film, aluminium foil, conductive glue, the conductive rubber.
5, electromagnetic shielding surface acoustic wave touch screen according to claim 1 is characterized in that: the attaching mode of described conductive shielding layer (3) and surface wave touch-screens body (1) is any in mechanical overlapping assembling, stickup, spraying, the plated film mode.
6, according to the described electromagnetic shielding surface acoustic wave touch screen of claim 1 to 4, it is characterized in that: described conductive shielding layer (3) is attached to the front of surface wave touch-screens body (1).
7, electromagnetic shielding surface acoustic wave touch screen according to claim 6 is characterized in that: described conductive shielding layer (3) is attached to the back side of surface wave touch-screens body (1).
8, according to the described electromagnetic shielding surface acoustic wave touch screen of claim 1 to 4, it is characterized in that: described conductive shielding layer (3) is attached to the back side of surface wave touch-screens body (1).
9, according to the described electromagnetic shielding surface acoustic wave touch screen of claim 1 to 4, it is characterized in that: described conductive shielding layer (3) is attached on whole outside surfaces of surface wave touch-screens body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035119A CN101650621A (en) | 2009-09-11 | 2009-09-11 | Electromagnetic shielding surface acoustic wave touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035119A CN101650621A (en) | 2009-09-11 | 2009-09-11 | Electromagnetic shielding surface acoustic wave touch screen |
Publications (1)
| Publication Number | Publication Date |
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| CN101650621A true CN101650621A (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200910035119A Pending CN101650621A (en) | 2009-09-11 | 2009-09-11 | Electromagnetic shielding surface acoustic wave touch screen |
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| CN (1) | CN101650621A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103092426A (en) * | 2013-02-06 | 2013-05-08 | 南昌欧菲光科技有限公司 | Touch display screen and electronic device comprising the same |
| CN105068609A (en) * | 2015-08-19 | 2015-11-18 | 山东超越数控电子有限公司 | Electromagnetic shielding method for capacitive touch screen of ruggedized computer |
| CN111245417A (en) * | 2020-01-13 | 2020-06-05 | 深圳市巨烽显示科技有限公司 | Touch key touch vibration feedback structure applied to nuclear magnetic environment |
| CN112652254A (en) * | 2020-09-11 | 2021-04-13 | 和辉(深圳)液晶显示技术有限公司 | Anti-electromagnetic interference low-temperature-resistant liquid crystal display screen |
-
2009
- 2009-09-11 CN CN200910035119A patent/CN101650621A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103092426A (en) * | 2013-02-06 | 2013-05-08 | 南昌欧菲光科技有限公司 | Touch display screen and electronic device comprising the same |
| CN105068609A (en) * | 2015-08-19 | 2015-11-18 | 山东超越数控电子有限公司 | Electromagnetic shielding method for capacitive touch screen of ruggedized computer |
| CN111245417A (en) * | 2020-01-13 | 2020-06-05 | 深圳市巨烽显示科技有限公司 | Touch key touch vibration feedback structure applied to nuclear magnetic environment |
| CN111245417B (en) * | 2020-01-13 | 2023-08-15 | 深圳市巨烽显示科技有限公司 | Touch key touch vibration feedback structure applied to nuclear magnetic environment |
| CN112652254A (en) * | 2020-09-11 | 2021-04-13 | 和辉(深圳)液晶显示技术有限公司 | Anti-electromagnetic interference low-temperature-resistant liquid crystal display screen |
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Application publication date: 20100217 |