CN202257529U - Unframed surface sound-wave touch screen - Google Patents
Unframed surface sound-wave touch screen Download PDFInfo
- Publication number
- CN202257529U CN202257529U CN2011203740423U CN201120374042U CN202257529U CN 202257529 U CN202257529 U CN 202257529U CN 2011203740423 U CN2011203740423 U CN 2011203740423U CN 201120374042 U CN201120374042 U CN 201120374042U CN 202257529 U CN202257529 U CN 202257529U
- Authority
- CN
- China
- Prior art keywords
- locating device
- touch
- axle locating
- screen body
- axle
- 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
Images
Landscapes
- Position Input By Displaying (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
The utility model discloses an unframed surface sound-wave touch screen, which comprises a controller, an X-axis positioning device and a Y-axis positioning device, wherein only one of the X-axis and the Y-axis positioning devices is arranged on the back surface of a touch screen body; or both the X-axis positioning device and the Y-axis positioning device are arranged on the back surface of the touch screen body, and the working frequency of an X channel is different from that of a Y channel. The working frequency of the X channel corresponding to the X-axis positioning device is 2.5MHz to 12MHz, and the working frequency of the Y channel corresponding to the Y-axis positioning device is 2.5MHz to 12MHz. By utilizing the transmission characteristics of a surface sound wave, partial or all positioning devices are installed on the back surface of the touch screen, so the frame weakness of the surface sound-wave touch screen can be eliminated, and the unframed surface sound-wave touch screen can be realized; and by adopting a working way that the channel corresponding to each positioning device of the surface sound-wave touch screen has different working frequencies, different working frequencies can be optimized to use according to different transmission distances of the screen body surface sound wave.
Description
Technical field
The utility model relates to a kind of surface acoustic wave touch screen, relates in particular to a kind of novel boundless frame table face acoustic wave touching screen.
Background technology
Current touch-screen mainly contains types such as surface acoustic wave, infrared, resistance, electric capacity.Characteristics such as surface acoustic wave touch screen tool resolution is high, the response time is short, fine, the anti-riot property of stability is good, light transmission is good; Infrared screen touch-screen resolution is general, the response time is long, general, the anti-riot property of stability is good, light transmission is good, easily by characteristics such as light interference; Characteristics such as electric resistance touch screen tool resolution height, response time weak point, good stability, poor, the anti-riot property of light transmission difference; Characteristics such as capacitance touch screen tool resolution height, the response time is short, stability is general, better, the easy drift of general, the anti-riot property of light transmission.In sum; Surface acoustic wave touch screen is because it has performance index height, reliable and stable, advantage such as environmental adaptation is strong; And surface acoustic wave touch screen is the highest touch-screen of cost performance in several kinds of touch-screens, is the touch-screen of tool popularizing value in several kinds of main flow touch-screens.
Existing surface acoustic wave touch screen generally is made up of 2 transmitting transducers, 2 receiving transducers, 2 groups of emission striped arrays, 2 group of received striped arrays and is surrounded the zone.Transducer is arranged on the screen body angle by rule, and four circumferential distribution of screen body, 45 degree or 135 degree are by dredging 4 groups of accurate reflection strip arrays of close spacing; Wherein 1 transmitting transducer, 1 receiving transducer, 1 group of emission striped array, 1 group of received striped array are formed X axle locating device, and 1 transmitting transducer, 1 receiving transducer, 1 group of emission striped array, 1 group of received striped array are formed Y axle locating device in addition.The surface acoustic wave touch screen controller sends drive signal through radiating circuit to transmitting transducer; Produce surface acoustic wave; Surface acoustic wave is distributed in the whole touch screen body touch area through reflective array; Receiving circuit obtains to receive signal through receiving transducer, and the control processing circuit analysis receives signal and confirms touch coordinate.
In existing public technology, X axle, Y axle locating device are distributed in around the surface acoustic wave screen screen body touch face, and the screen surface is not attractive in appearance, is unfavorable for being applied to the installation of narrow frame display yet; The Y passage frequency of operation that X passage that the X axle locating device of surface acoustic wave touch screen is corresponding and Y axle locating device are corresponding is identical, is unfavorable for improving and optimizing the performance of surface acoustic wave touch screen.The path that the sound wave of length direction X axle is passed by can be greater than the width Y direction; A little less than causing on the X axle acoustic signals under the situation of same frequency than Y axle acoustic signals many; And controller need that X, two groups of signals of Y are amplified to equality strength when handling could computing, the enlargement factor that causes the X axle is much larger than the Y axle, the noise in the X axis signal also is exaggerated (noise in the Y axis signal) simultaneously; This interference noise can exert an influence to touch signal, therefore is unfavorable for the controller processing.
Summary of the invention
The purpose of the utility model is to overcome the problems referred to above that existing surface acoustic wave touch screen exists; A kind of boundless frame table face acoustic wave touching screen is provided; The utility model utilizes the transport property (along the plane, the ingratiating with property propagated of curved surface) of surface acoustic wave; Part or all of locating shaft device is installed on the touch-screen body back side, thereby eliminates the frame shortcoming of surface acoustic wave touch screen, realize novel boundless frame table face acoustic wave touching screen; And the working method of the corresponding passage different operating frequency of each locating device of surface acoustic wave touch screen is provided, thereby optimizes and use the different working frequency according to the difference of the Y channel surface sonic transmissions distance of shielding the corresponding X passage of body X axle locating device, Y axle locating device correspondence.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is following:
A kind of boundless frame table face acoustic wave touching screen comprises controller, X axle locating device and Y axle locating device, it is characterized in that: in said X axle locating device and the Y axle locating device, only have an axle locating device to be arranged on the touch-screen body back side; Perhaps X axle locating device and Y axle locating device all are arranged on the touch-screen body back side, and the X passage frequency of operation is different with Y passage frequency of operation.
The X passage frequency of operation that said X axle locating device is corresponding is 2.5MHZ-12MHZ, and the Y passage frequency of operation that Y axle locating device is corresponding is 2.5MHZ-12MHZ.
Said controller comprises CPU; The output terminal of CPU is connected with the public combinational circuit of emission; Transmitting transducer X in the X axle locating device is connected with the public combinational circuit of emission through X axle transmitter unit; Transmitting transducer Y in the Y axle locating device is connected with the public combinational circuit of emission through Y axle transmitter unit; The input end of CPU is connected with and receives the signal Processing omnibus circuit, and the receiving transducer X in the X axle locating device is coupling through X and receives the unit and receive the signal Processing omnibus circuit and is connected, and the receiving transducer Y in the Y axle locating device is connected with reception signal Processing omnibus circuit through the Y receipts unit that is coupling.
Said X axle locating device is arranged on the touch-screen body and touches face, and Y axle locating device is arranged on the touch-screen body back side.
Said X axle locating device is arranged on the touch-screen body back side, and Y axle locating device is arranged on the touch-screen body and touches face.
Said X axle locating device is arranged on the touch-screen body back side, and Y axle locating device is arranged on the touch-screen body back side.
Said X axle locating device and Y axle locating device include a transmitting transducer, a receiving transducer, an emission striped array and a reception striped array.
Said screen body side surface is the curve transition face, forms with the back side with touch face to seamlessly transit.
Said screen body side surface is the arc transition face, forms with the back side with touch face to seamlessly transit.
Adopt the advantage of the utility model to be:
One, in the utility model; X axle locating device places the touch-screen body to touch face, Y axle locating device places the touch-screen body back side; Or X axle locating device places the touch-screen body back side, Y axle locating device to place the touch-screen body to touch face; Or X axle locating device places the touch-screen body back side, Y axle locating device to place the touch-screen body back side, utilizes the transport property (along the plane, the ingratiating with property propagated of curved surface) of surface acoustic wave, and part or all of locating shaft device is installed on the touch-screen body back side; Thereby eliminate the frame shortcoming of surface acoustic wave touch screen, realize novel boundless frame table face acoustic wave touching screen.
Two, in the utility model; X axle locating device places the touch-screen body to touch face, Y axle locating device places the touch-screen body back side; Or X axle locating device places the touch-screen body back side, Y axle locating device to place the touch-screen body to touch face; Or X axle locating device places the touch-screen body back side, Y axle locating device to place the touch-screen body back side, the installation that helps shielding body.
Three, in the utility model; X axle locating device places the touch-screen body to touch face, Y axle locating device places the touch-screen body back side; Or X axle locating device places the touch-screen body back side, Y axle locating device to place the touch-screen body to touch face, or X axle locating device places the touch-screen body back side, Y axle locating device to place the touch-screen body back side, and not only shielding body, to touch face more attractive in appearance; Help being applied to narrow frame display, and can not reduce touch resolution.
Four, in the utility model; X axle locating device places the touch-screen body to touch face, Y axle locating device places the touch-screen body back side; Or X axle locating device places the touch-screen body back side, Y axle locating device to place the touch-screen body to touch face; Or X axle locating device places the touch-screen body back side, Y axle locating device to place the touch-screen body back side, can not increase the touch-responsive time.
Five, in the utility model, the difference of the X passage that screen body X axle locating device is corresponding, the Y channel surface sonic transmissions distance that Y axle locating device is corresponding and optimize and use the different working frequency, favourable touch is more reliable and more stable, touch sensitivity is higher.
Six, in the utility model, the difference of the X passage that screen body X axle locating device is corresponding, the Y channel surface sonic transmissions distance that Y axle locating device is corresponding and optimize and use the different working frequency has solved the problem that disalignment is crosstalked to signal each other; The different qualities of surface acoustic wave when passing through the striped array that utilizes different frequency simultaneously also the scalable disalignment to signal intensity; Make disalignment to the strong and weak basically identical of electric signal; The signal Processing that helps controller, different working frequency help shielding the body size and do more.
Seven, in the utility model; Said screen body side surface is the curve transition face, form with the back side with touch face to seamlessly transit, or said screen body side surface is the arc transition face; Seamlessly transit with touch face and back side formation, to reach the purpose that reduces the acoustic wave energy loss to greatest extent.
Eight, in the utility model, the X passage frequency of operation that said X axle locating device is corresponding is 2.5MHZ-12MHZ, and the Y passage frequency of operation that Y axle locating device is corresponding is 2.5MHZ-12MHZ; And the X passage frequency of operation is different with Y passage frequency of operation, has improved the X axle than the energy loss that Y axle path length causes, and makes the energy of X axle and Y axle more consistent; The amplifying circuit enlargement factor is better controlled, and better handles when controller is handled, and X axle transducer can not receive the Y axis signal; In like manner the Y axle can not received the X axis signal yet; The X axis signal is independent of each other with the Y axis signal mutually, and the signal that control is received is purer, reduces and disturbs.
Description of drawings
Fig. 1 is X axle locating device and the Y axle locating device structural representation at the touch-screen body back side
Fig. 2 is that the X axle locating device among Fig. 1 touches face, Y axle locating device at touch-screen body schematic rear view at the touch-screen body
Fig. 3 is that the Y axle locating device among Fig. 1 touches face, X axle locating device at touch-screen body schematic rear view at the touch-screen body
Fig. 4 is the propagation synoptic diagram of locating device sound wave when the touch-screen body back side
Be labeled as among the figure: 1, receiving transducer X, 2, receiving transducer Y, 3, transmitting transducer X, 4, transmitting transducer Y; 5, receive striped array Y, 6, emission striped array X, 7, emission striped array Y, 8, receive striped array X; 9, arc transition face, 10, touch face, 11, the touch-screen body back side, A, touch point; 12, surface acoustic wave, 13, receiving transducer, 14, transmitting transducer.
Embodiment
Embodiment 1
A kind of boundless frame table face acoustic wave touching screen comprises controller, X axle locating device and Y axle locating device, in said X axle locating device and the Y axle locating device; Only there is an axle locating device to be arranged on the touch-screen body back side 11; For example, only X axle locating device is arranged on the touch-screen body back side 11, and perhaps only Y axle locating device is arranged on the touch-screen body back side 11; The frequency of operation of X axle locating device and Y axle locating device can be identical, also can be different.
The X passage frequency of operation that said X axle locating device is corresponding is 2.5MHZ-12MHZ, and the Y passage frequency of operation that Y axle locating device is corresponding is 2.5MHZ-12MHZ.
For example, the X passage frequency of operation that X axle locating device is corresponding can be selected 2.5 MHZ, and the corresponding with it corresponding Y passage frequency of operation of Y axle locating device can be selected 12 MHZ.
For another example, the X passage frequency of operation that X axle locating device is corresponding can be selected 8 MHZ, and the corresponding with it corresponding Y passage frequency of operation of Y axle locating device can be selected 5 MHZ.
For another example, the X passage frequency of operation that X axle locating device is corresponding can be selected 12 MHZ, and the corresponding with it corresponding Y passage frequency of operation of Y axle locating device can be selected 2.5 MHZ.
In the utility model; Said controller comprises CPU; The output terminal of CPU is connected with the public combinational circuit of emission; Transmitting transducer X in the X axle locating device is connected with the public combinational circuit of emission through X axle transmitter unit, and the transmitting transducer Y in the Y axle locating device is connected with the public combinational circuit of emission through Y axle transmitter unit, and the input end of CPU is connected with and receives the signal Processing omnibus circuit; Receiving transducer X in the X axle locating device is coupling through X and receives the unit and receive the signal Processing omnibus circuit and is connected, and the receiving transducer Y in the Y axle locating device is connected with reception signal Processing omnibus circuit through the Y receipts unit that is coupling.Also can adopt existing controller to have and control circuit.
X axle locating device in the utility model and Y axle locating device set-up mode are following: said X axle locating device is arranged on the touch-screen body and touches face 10, and Y axle locating device is arranged on the touch-screen body back side 11.Or said X axle locating device is arranged on the touch-screen body back side 11, and Y axle locating device is arranged on the touch-screen body and touches face 10.Or said X axle locating device is arranged on the touch-screen body back side 11, and Y axle locating device is arranged on the touch-screen body back side 11.
In the utility model, said X axle locating device and Y axle locating device include a transmitting transducer 14, receiving transducer 13, emission striped array and one and receive the striped array.
In the utility model, said screen body side surface is the curve transition face, forms with the touch-screen body back side 11 with touch face 10 to seamlessly transit.Further, said screen body side surface is an arc transition face 9, forms with the touch-screen body back side 11 with touch face 10 to seamlessly transit.
Screen body material in the utility model can adopt unorganic glass, also can adopt organic glass, can also adopt metal material.
In the utility model, the passage that locating device is corresponding mainly is meant reflection projected path and the receiving processing circuit that X axle, Y axle surface acoustic wave signal pass through.The touch-screen body back side is meant that the screen body touches the corresponding reverse side of face.
Embodiment 2
A kind of novel boundless frame table face acoustic wave touching screen comprises controller, X axle locating device and Y axle locating device.Said X axle locating device, Y axle locating device partly or entirely are distributed in around the touch-screen back side.Touch face only has part or does not have hardware unit, to reach the purpose of minimizing or no touch frame.
When all devices are placed in the touch-screen back side; When touch point A touches; The surface acoustic wave 12 that transmitting transducer X, transmitting transducer Y send reflexes to the touch-screen dorsal edge through emission striped array, utilizes the transport property (along the plane, curved surface the ingratiating with property that < contains hemisphere face>and propagate) of sound wave; Surface acoustic wave 12 is transmitted to the screen body along touch-screen body curve transition face and touches face 10; Continue the touch face that is transmitted to 10 subtend edges at touch face 10, be transmitted to the touch-screen body back side 11 along touch-screen body curve transition face again, reflex to receiving transducer X, the receiving transducer Y that is placed in the screen body back side by receiving the striped array.
When being placed in the touch-screen body, X axle locating device touches face, when Y axle locating device is placed in the touch-screen back side, and the sound wave that transmitting transducer X sends, emission striped array reflexes to and receives the striped array through the touch-screen body back side, reflexes to receiving transducer X again.The sound wave that transmitting transducer Y sends; Reflex to the touch-screen dorsal edge through emission striped array; Utilize the defeated characteristic (along the plane, curved surface the ingratiating with property that < contains hemisphere face>and propagate) of sound wave, be transmitted to the screen body along touch-screen body curve transition face and touch face, continue to be transmitted at touch face and touch in the face of to the edge; Be transmitted to the screen body back side along touch-screen body curve transition face again, reflex to the receiving transducer Y that is placed in the screen body back side by receiving the striped array.
Touch face when Y axle locating device is placed in the touch-screen body, the sound wave that transmitting transducer Y sent when X axle locating device was placed in the touch-screen back side reflexes to reception striped array through touch-screen dignity emission striped array, reflexes to receiving transducer Y again.The sound wave that transmitting transducer X sends; Reflex to the touch-screen dorsal edge through emission striped array; Utilize the defeated characteristic (along the plane, curved surface the ingratiating with property that < contains hemisphere face>and propagate) of sound wave, be transmitted to the screen body along touch-screen body curve transition face and touch face, continue to be transmitted at touch face and touch in the face of to the edge; Be transmitted to the screen body back side along touch-screen body curve transition face again, reflex to the receiving transducer X that is placed in the screen body back side by receiving the striped array.
Embodiment 3
A kind of boundless frame table face acoustic wave touching screen comprises controller, X axle locating device and Y axle locating device, and X axle locating device and Y axle locating device all are arranged on the touch-screen body back side, and the X passage frequency of operation is different with Y passage frequency of operation.
In the utility model, the frequency of the transmitting transducer of said X axle locating device, receiving transducer and striped array is 4.5 MHZ-3.5 MHZ; The frequency of the transmitting transducer of Y axle locating device, receiving transducer and striped array is 6Mhz-5Mhz.
Embodiment 4
In the utility model, the frequency of the transmitting transducer of said X axle locating device, receiving transducer and striped array is 3 MHZ-2.5 MHZ; The frequency of the transmitting transducer of Y axle locating device, receiving transducer and striped array is 4.5 MHZ-3.5 MHZ.
Claims (9)
1. a boundless frame table face acoustic wave touching screen comprises controller, X axle locating device and Y axle locating device, it is characterized in that: in said X axle locating device and the Y axle locating device, only have an axle locating device to be arranged on the touch-screen body back side (11); Perhaps X axle locating device and Y axle locating device all are arranged on the touch-screen body back side (11), and the X passage frequency of operation is different with Y passage frequency of operation.
2. boundless frame table face acoustic wave touching screen according to claim 1 is characterized in that: the X passage frequency of operation that said X axle locating device is corresponding is 2.5MHZ-12MHZ, and the Y passage frequency of operation that Y axle locating device is corresponding is 2.5MHZ-12MHZ.
3. boundless frame table face acoustic wave touching screen according to claim 1 and 2; It is characterized in that: said controller comprises CPU; The output terminal of CPU is connected with the public combinational circuit of emission; Transmitting transducer X (3) in the X axle locating device is connected with the public combinational circuit of emission through X axle transmitter unit; Transmitting transducer Y (4) in the Y axle locating device is connected with the public combinational circuit of emission through Y axle transmitter unit; The input end of CPU is connected with and receives the signal Processing omnibus circuit, and the receiving transducer X (1) in the X axle locating device is coupling through X and receives the unit and receive the signal Processing omnibus circuit and is connected, and the receiving transducer Y (2) in the Y axle locating device is connected with reception signal Processing omnibus circuit through the Y receipts unit that is coupling.
4. boundless frame table face acoustic wave touching screen according to claim 1 and 2 is characterized in that: said X axle locating device is arranged on the touch-screen body and touches face (10), and Y axle locating device is arranged on the touch-screen body back side (11).
5. boundless frame table face acoustic wave touching screen according to claim 1 and 2 is characterized in that: said X axle locating device is arranged on the touch-screen body back side (11), and Y axle locating device is arranged on the touch-screen body and touches face (10).
6. boundless frame table face acoustic wave touching screen according to claim 1 and 2 is characterized in that: said X axle locating device is arranged on the touch-screen body back side (11), and Y axle locating device is arranged on the touch-screen body back side (11).
7. boundless frame table face acoustic wave touching screen according to claim 1 and 2 is characterized in that: said X axle locating device and Y axle locating device include a transmitting transducer, a receiving transducer, an emission striped array and a reception striped array.
8. boundless frame table face acoustic wave touching screen according to claim 1 and 2, it is characterized in that: said screen body side surface is the curve transition face, forms with the touch face (10) and the touch-screen body back side (11) to seamlessly transit.
9. boundless frame table face acoustic wave touching screen according to claim 8 is characterized in that: said screen body side surface is arc transition face (9), forms with the touch face (10) and the touch-screen body back side (11) to seamlessly transit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203740423U CN202257529U (en) | 2011-09-30 | 2011-09-30 | Unframed surface sound-wave touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203740423U CN202257529U (en) | 2011-09-30 | 2011-09-30 | Unframed surface sound-wave touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202257529U true CN202257529U (en) | 2012-05-30 |
Family
ID=46118740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203740423U Expired - Lifetime CN202257529U (en) | 2011-09-30 | 2011-09-30 | Unframed surface sound-wave touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202257529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104331194A (en) * | 2014-10-23 | 2015-02-04 | 南车株洲电力机车研究所有限公司 | Haulage motor display |
| CN105045415A (en) * | 2015-08-07 | 2015-11-11 | 成都吉锐时代触摸技术有限公司 | Handwriting positioning method for ultrasonic wave pen |
-
2011
- 2011-09-30 CN CN2011203740423U patent/CN202257529U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104331194A (en) * | 2014-10-23 | 2015-02-04 | 南车株洲电力机车研究所有限公司 | Haulage motor display |
| CN105045415A (en) * | 2015-08-07 | 2015-11-11 | 成都吉锐时代触摸技术有限公司 | Handwriting positioning method for ultrasonic wave pen |
| CN105045415B (en) * | 2015-08-07 | 2018-05-04 | 成都吉锐时代触摸技术有限公司 | A kind of person's handwriting localization method of ultrasonic pen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102141867B (en) | Electromagnetic induction device and touch positioning method thereof | |
| CN104272230A (en) | Acoustic touch apparatus with multi-touch capability | |
| CN102495700B (en) | The method of recognizing touch points by using acoustic wave touch screen | |
| CN1484195A (en) | Double-frequence response type surface acoustic wave touch system | |
| CN104216576A (en) | Surface acoustic wave touch screen and touch display device | |
| CN104272229A (en) | Acoustic touch apparatus with variable thickness substrate | |
| CN105807990A (en) | Display screen, touch pen and display module | |
| CN102622135A (en) | Touch screen with infrared rays transmitted inside screen body and method for identifying touch points | |
| CN102799320B (en) | Spliced ultrasonic touch screen | |
| CN202257529U (en) | Unframed surface sound-wave touch screen | |
| CN105094464A (en) | Infrared touch control device | |
| CN102819357B (en) | Low-power consumption light and thin type small-medium size acoustic wave touching screen | |
| CN104407747A (en) | Infrared touch screen, touch sensing method and display device | |
| CN101719043A (en) | Multi-point surface acoustic wave touch screen | |
| CN1146779C (en) | Display screen touch point position parameter sensing device | |
| CN103930855B (en) | A directional ultrasound transmitting stylus | |
| CN205229311U (en) | Touch -control sound wave screen with reaction type transducer | |
| CN202230464U (en) | Borderless multi-point surface acoustic wave touch screen | |
| WO2016045245A1 (en) | Touch screen and touch point positioning method | |
| WO2012122723A1 (en) | Touch control apparatus, control method thereof and electronic device having touch control apparatus | |
| CN101976158B (en) | Ultrasonic wave/infrared combined locating device and locating method thereof | |
| CN201576267U (en) | Multi-point surface acoustic-wave touch screen | |
| CN101882035B (en) | Signal driving method of surface acoustic wave touch panel and device thereof | |
| CN202916821U (en) | Cascade partition surface acoustic wave touch screen with hidden touch components | |
| CN105955552A (en) | Touch apparatus, touch method and curved surface display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |