CN201741137U - Bevel edge touch screen with low transmission loss of energy - Google Patents
Bevel edge touch screen with low transmission loss of energy Download PDFInfo
- Publication number
- CN201741137U CN201741137U CN2009202352067U CN200920235206U CN201741137U CN 201741137 U CN201741137 U CN 201741137U CN 2009202352067 U CN2009202352067 U CN 2009202352067U CN 200920235206 U CN200920235206 U CN 200920235206U CN 201741137 U CN201741137 U CN 201741137U
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- bevel edge
- screen
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Abstract
The utility model relates to a bevel edge touch screen with low transmission loss of energy, comprising a touch screen body, a controller and a cable, wherein one side of the touch screen body is provided with a bevel edge plane comprising a bevel edge plane a, a bevel edge plane b and a bevel edge plane c, and the bevel edge plane b is positioned between the bevel edge plane a and the bevel edge plane c; and the bevel edge plane a and the bevel edge plane c are the bevel edge planes at an installation site for an energy converter, the bevel edge plane b is the bevel edge plane at a site, at which the energy converter is not installed, and an included angle between the bevel edge plane of the installation site for the energy converter and the backside plane of the touch screen is less than 30 degrees. In the utility model, the included angle between the bevel edge plane of the installation site for the energy converter and the backside plane of the touch screen is less than 30 degrees, therefore, in the structure, energy loss of sound wave transmission is lower, the SNR (Signal to Noise Ratio) of a touch signal is increased, and simultaneously the touch screen is applicable to occasions requiring high reliability of touch recognition and large-sized touch screens as well as to the environment with strong electromagnetic interference, thereby expanding the range of application of the touch screen.
Description
Technical field
The utility model relates to a kind of touch-screen, especially relates to a kind of hypotenuse touch-screen with low-yield loss.
Background technology
Hypotenuse touch screen technology principle is the surface acoustic wave technique of comparative maturity, surface acoustic wave is the mechanical energy ripple of propagating at the surperficial shallow-layer of medium (for example rigid material such as glass or metal), by wedge shape tribrach (according to the strict design of the wavelength of surface wave), can accomplish orientation, the low-angle sound pulse that converts the electrical signal to, form the signal that XY interweaves in touch screen surface, to judge the coordinate that touches; The surface acoustic wave stable performance, be easy to analyze, and in the shear wave transmittance process, has very sharp-pointed frequency characteristic, development is very fast on the application direction of nondestructive examination, radiography and wave filter in recent years, and technology such as the theoretical research that surface acoustic wave is relevant, semiconductor material, acoustic conductance material, detection technique are all quite ripe.
Fig. 1 Fig. 1 is the structural representation of existing screen body of touch screen; Fig. 2 is that the A of Fig. 1 is to view.
As depicted in figs. 1 and 2: the touch screen portion of surface acoustic wave touch screen can be the glass plate of plane, sphere or a cylinder, be installed in the front of CRT, LED, LCD or plasma display screen, this piece glass plate is a pure tempered glass, and being different from other class touch screen technology is without any pad pasting and overlayer.The electric signal that transmitting transducer is sent the touch-screen cable here by controller transmits to the left surface after being converted into acoustic wave energy, be carved with 45 and by after dredging the very accurate reflection strip of close spacing 2 and reflecting through a group of glass plate bottom then, acoustic wave energy is to the even face transmission on top, through the screen surface, gather to become to the right line to propagate receiving transducer 6 to the X-axle by the reflection strip 2 of top again, receiving transducer 6 becomes electric signal with the surface acoustic wave energy that returns.After burst pulse of transmitting transducer emission, acoustic wave energy is gone through different approaches and is arrived receiving transducer 6, walk rightmost arrival the earliest, walk leftmost arrival the latest, these acoustic wave energies with arriving evening that early arrive are superimposed as the waveform signal of a broad, therefore be not difficult to find out, received signal has been gathered all and has been gone through the acoustic wave energy that the different paths of length return in X-direction, the distance that they are passed by in Y-axis is identical, but on X-axis, farthest than the nearest twice X-axis distance of having walked more, so the time shaft of this waveform signal reflects the position before each original waveform stack, just the X-axis coordinate can obtain the Y-axis coordinate with quadrat method.
The first characteristics of surface acoustic wave touch screen are exactly uprising, because being one deck, the workplace of surface acoustic wave touch screen cannot see, beats not bad acoustic wave energy, basic unit's glass of touch-screen is without any interlayer and structural stress (thereby surface acoustic wave touch screen can develop into directly be made in the CRT surface without any " screen "), therefore very uprising, be fit to the public place; The second largest characteristics of surface acoustic wave touch screen are exactly clear attractive in appearance, because structure is few, have only one deck simple glass, and transmittance and sharpness are all much better than capacitance resistance touch-screen; The third-largest characteristics of surface acoustic wave touch screen are that reaction velocity is fast, and reaction velocity is the fastest in its all touch-screens, feel very smooth and easy during use; The fourth-largest characteristics of surface acoustic wave touch screen are stable performances, because the surface acoustic wave technique principle is stable, and the controller of surface acoustic wave touch screen comes calculated touch location by measuring the position of attenuation initiation on time shaft, so surface acoustic wave touch screen is highly stable, precision is also very high, the precision of present surface acoustic wave technique touch-screen is 4096 * 4096 * 256 grades of dynamics normally, can support nearly 10 touch after finishing, and response speed rises to and is lower than 10ms.
And the architectural feature of hypotenuse screen is positioned at the hypotenuse plane area for the touch-screen transducer, hypotenuse plane area and touch-screen front plane area be not or not same plane, the enbrittle function of touch-screen transducer 6 of characteristic of this kind structural defence, it is between 30 °～45 ° (as shown in Figure 1) on the hypotenuse plane of transducer installed position and the angle of touch-screen back side plane for existing hypotenuse screen structure; But being positioned at the touch-screen that touches the front plane area with the touch-screen transducer compares, the energy loss of this kind architectural feature sonic transmissions is bigger, the signal to noise ratio (S/N ratio) of touch signal is descended, thereby the range of application that makes touch-screen is subjected to certain limitation, special application scenario at high touch recognition reliability, large scale touch-screen and strong electromagnetic interference environment etc.
The utility model content
In order to overcome the deficiencies in the prior art; so the purpose of this utility model is under situation about being effectively protected at the touch-screen transducer; reduce the energy loss of sonic transmissions; promote the signal to noise ratio (S/N ratio) of touch signal, make touch-screen be applicable to the application scenario of high touch recognition reliability, large scale touch-screen and strong electromagnetic interference environment etc.
The utility model is achieved through the following technical solutions:
A kind of hypotenuse touch-screen with low-yield loss, comprise the touch-screen body, controller and cable, one side of touch-screen body is the hypotenuse plane, and the hypotenuse plane comprises hypotenuse plane a, hypotenuse plane b and hypotenuse plane c, hypotenuse plane b is positioned at the centre of hypotenuse plane a and hypotenuse plane c, wherein, hypotenuse plane a and hypotenuse plane c are the hypotenuse plane of transducer installed position, hypotenuse plane b then is the hypotenuse plane of non-transducer installed position, it is characterized in that: the hypotenuse plane of described transducer installed position and the angle between the touch-screen back side plane are less than 30 °.
Above-mentioned hypotenuse plane a, hypotenuse plane b and hypotenuse plane c are the plane of mutual coplane or the plane of coplane not.
The hypotenuse plane of above-mentioned transducer installed position and the angle of touch-screen back side plane are more than or equal to 5 °, and less than 30 °, the arbitrary number of degrees in preferred 5 °, 10 °, 15 °, 20 °, 25 °.
The beneficial effects of the utility model are: the hypotenuse plane and angle＜30 at the touch-screen back side ° at the transducer installed position described in the utility model, this kind structure possesses the energy loss of lower sonic transmissions, promoted the signal to noise ratio (S/N ratio) of touch signal, make touch-screen be applicable to the application scenario of high touch recognition reliability, large scale touch-screen, strong electromagnetic interference environment simultaneously, enlarged the range of application of touch-screen.
Description of drawings
Fig. 1 is the structural representation of existing screen body of touch screen;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the structural representation of the utility model one embodiment;
Fig. 4 is that the A of Fig. 3 is to view.
Main Reference numeral implication is among the figure:
1, touch-screen front plane area 2, striate region 3, hypotenuse plane a
4, hypotenuse plane b 5, hypotenuse plane c 6, transducer
β, angle 7, touch-screen back side plane
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail:
Fig. 3 is the structural representation of the utility model one embodiment; Fig. 4 is that the B of Fig. 3 is to view.
As shown in Figure 3 and Figure 4: a kind of hypotenuse touch-screen with low-yield loss, comprise the touch-screen body, controller and cable, the front of touch-screen body is divided into touch-screen front plane area 1 and striate region 2, the striate region is positioned at the both sides up and down of touch-screen front plane area 1, and a side of touch-screen front plane area 1 is the hypotenuse plane, and the hypotenuse plane comprises hypotenuse plane a3, hypotenuse plane b4 and hypotenuse plane c5, hypotenuse plane b4 is positioned at the centre of hypotenuse plane a3 and hypotenuse plane c5, wherein, hypotenuse plane a3 and hypotenuse plane c5 are the hypotenuse plane of transducer 6 installed positions, hypotenuse plane b4 then is the hypotenuse plane of non-transducer 6 installed positions, and the hypotenuse plane of described transducer 6 installed positions and the angle α between the touch-screen back side plane 7 are less than 30 °.
Wherein hypotenuse plane a3, hypotenuse plane b4 and hypotenuse plane c5 are the plane of mutual coplane or the plane of coplane not.
And the angle α of the hypotenuse plane of above-mentioned transducer 6 installed positions and touch-screen back side plane 7 is 5 °≤α＜30 °, all can as 5 °, 8 °, 10 °, 12 °, 15 °, 16 °, 18 °, 20 °, 25 ° or the like, the job operation of hypotenuse can use the method for existing processing hypotenuse to realize, as use processing mode such as edge polisher to realize, but be not limited to the method for existing processing hypotenuse, for example also can utilize modes such as straight forming.
Compare with existing touch screen structure, touch screen structure described in the utility model makes the energy loss of sonic transmissions reduce by 5～10%; The signal to noise ratio (S/N ratio) of touch signal promotes 10～30%.
Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within the protection domain of the present utility model.
Claims (9)
1. hypotenuse touch-screen with low-yield loss, comprise the touch-screen body, controller and cable, one side of touch-screen body is the hypotenuse plane, and the hypotenuse plane comprises hypotenuse plane a, hypotenuse plane b and hypotenuse plane c, hypotenuse plane b is positioned at the centre of hypotenuse plane a and hypotenuse plane c, wherein, hypotenuse plane a and hypotenuse plane c are the hypotenuse plane of transducer installed position, hypotenuse plane b then is the hypotenuse plane of non-transducer installed position, it is characterized in that: the hypotenuse plane of described transducer installed position and the angle between the touch-screen back side plane are less than 30 °.
2. the hypotenuse touch-screen with low-yield loss according to claim 1 is characterized in that: described hypotenuse plane a, hypotenuse plane b and hypotenuse plane c are the plane of mutual coplane.
3. the hypotenuse touch-screen with low-yield loss according to claim 1 is characterized in that: described hypotenuse plane a, hypotenuse plane b and hypotenuse plane c are the mutual not plane of coplane.
4. the hypotenuse touch-screen with low-yield loss according to claim 1 is characterized in that: the hypotenuse plane of described transducer installed position and the angle of touch-screen back side plane are more than or equal to 5 °, and less than 30 °.
5. according to claim 1 or 4 described hypotenuse touch-screens with low-yield loss, it is characterized in that: the hypotenuse plane of described transducer installed position and the angle of touch-screen back side plane are 5 °.
6. according to claim 1 or 4 described hypotenuse touch-screens with low-yield loss, it is characterized in that: the hypotenuse plane of described transducer installed position and the angle of touch-screen back side plane are 10 °.
7. according to claim 1 or 4 described hypotenuse touch-screens with low-yield loss, it is characterized in that: the hypotenuse plane of described transducer installed position and the angle of touch-screen back side plane are 15 °.
8. according to claim 1 or 4 described hypotenuse touch-screens with low-yield loss, it is characterized in that: the hypotenuse plane of described transducer installed position and the angle of touch-screen back side plane are 20 °.
9. according to claim 1 or 4 described hypotenuse touch-screens with low-yield loss, it is characterized in that: the hypotenuse plane of described transducer installed position and the angle of touch-screen back side plane are 25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202352067U CN201741137U (en) | 2009-10-20 | 2009-10-20 | Bevel edge touch screen with low transmission loss of energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202352067U CN201741137U (en) | 2009-10-20 | 2009-10-20 | Bevel edge touch screen with low transmission loss of energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201741137U true CN201741137U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202352067U Expired - Fee Related CN201741137U (en) | 2009-10-20 | 2009-10-20 | Bevel edge touch screen with low transmission loss of energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201741137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160373844A1 (en) * | 2015-06-16 | 2016-12-22 | Crestron Electronics, Inc. | Touch screen control device with speakers |
-
2009
- 2009-10-20 CN CN2009202352067U patent/CN201741137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160373844A1 (en) * | 2015-06-16 | 2016-12-22 | Crestron Electronics, Inc. | Touch screen control device with speakers |
| US10206022B2 (en) * | 2015-06-16 | 2019-02-12 | Crestron Electronics, Inc. | Touch screen control device with speakers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20141020 |
|
| EXPY | Termination of patent right or utility model |