CN105045430B - Touch detecting apparatus, touch detecting method and electronic equipment - Google Patents
Touch detecting apparatus, touch detecting method and electronic equipment Download PDFInfo
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- CN105045430B CN105045430B CN201510524759.4A CN201510524759A CN105045430B CN 105045430 B CN105045430 B CN 105045430B CN 201510524759 A CN201510524759 A CN 201510524759A CN 105045430 B CN105045430 B CN 105045430B
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Abstract
Provide a kind of touch detecting apparatus, touch detecting method and electronic equipment, wherein touch detecting apparatus includes: vibration generating layer, generates the first vibration for receiving first voltage signal, and according to first voltage signal；Receiving layer is vibrated, generates touch operation signal for receiving the first vibration and the touch of operating body, and according to the first vibration and the touch of operating body.The present invention not only can carry out accurate detection to the touch operation of general electronic equipment, and be equally applicable to the electronic equipment of metal shell.
Description
Technical Field
The present invention relates to a touch detection device, an electronic apparatus including the touch detection device, and a touch detection method corresponding to the touch detection device.
Background
The sensor is a device for receiving and transmitting sensed information, and it can sense the measured object and convert the sensed information into usable signals according to a certain rule. Such as capacitive sensors, light sensors, etc.
In the prior art, touch operation on an electronic device is generally implemented by a capacitive sensor, and information such as pressure and a touch position of a finger of a user can be sensed by the capacitive sensor. However, for the electronic device with the metal back shell, since the metal shell is an equipotential body, the electric field lines of the capacitor are easily shielded by the metal, so that the touch operation of the electronic device by the user cannot be effectively detected, and the use of the user is seriously affected.
Disclosure of Invention
An embodiment of the present invention provides a touch detection apparatus applied to an electronic device, the electronic device, and a touch detection method, so as to solve the above technical problems.
One embodiment of the present invention provides a touch detection apparatus applied to an electronic device, including: the vibration generation layer is used for receiving the first voltage signal and generating first vibration according to the first voltage signal; and the vibration receiving layer is used for receiving the first vibration and the touch of the operation body and generating a touch operation signal according to the first vibration and the touch of the operation body.
Another embodiment of the present invention provides an electronic device, including: the shell is made of metal or glass material; the touch sensing unit is used for sensing the touch operation of the operation body by penetrating the shell and generating a touch operation signal according to the touch operation; wherein, the touch-sensitive unit includes: a touch detection device; and the display unit is used for displaying corresponding display content according to the touch operation signal.
Another embodiment of the present invention provides a touch detection method applied to an electronic device, including: receiving a first voltage signal and generating first vibration according to the first voltage signal; receiving first vibration and generating a touch operation signal according to the first vibration and touch operation of an operation body; and displaying corresponding display content according to the touch operation signal.
In the above-mentioned solution provided by the embodiment of the present invention, the touch sensor effectively transmits and detects the touch operation of the user by the combination of the piezoelectric material and the electrode, so as to avoid the problem that the capacitive line of the capacitive sensor is shielded by metal, not only can accurately detect the touch operation of general electronic equipment, but also is applicable to electronic equipment with a metal case, thereby solving the problems in the prior art.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. The drawings in the following description are merely exemplary embodiments of the invention.
Fig. 1 shows a schematic configuration diagram of a touch detection device in a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a touch detection device in a second embodiment of the present invention;
FIG. 3 is a diagram illustrating a structural relationship between a touch detection device and an electronic device in an embodiment of the invention;
fig. 4 shows a flow chart of a touch detection method in an embodiment of the invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that in the present specification and the drawings, steps and elements having substantially the same structure are denoted by the same reference numerals, and repeated explanation of the steps and elements will be omitted.
In the following embodiments of the present invention, an electronic device refers to a device capable of communicating with other devices. Specific forms of electronic devices include, but are not limited to, mobile phones, personal computers, digital cameras, personal digital assistants, portable computers, game consoles, and the like.
Fig. 1 depicts a schematic structural diagram of a touch detection device 100 according to an embodiment of the invention. The touch detection apparatus 100 will be described below with reference to fig. 1.
Referring to fig. 1, a touch sensing device 100 according to an example of the present invention is a layered structure, and includes a vibration generation layer 110 for receiving a first voltage signal and generating a first vibration according to the first voltage signal; and a vibration receiving layer 120 for directly or indirectly receiving the first vibration and/or the touch of the operating body and generating a touch operation signal according to the first vibration and/or the touch of the operating body. Optionally, the touch sensing device 100 may further include a vibration transmitting layer 130 between the vibration generating layer 110 and the vibration receiving layer 120 for transmitting the first vibration generated by the vibration generating layer 110 to the vibration receiving layer 120.
The structure and function of the vibration generation layer 110 and the vibration receiving layer 120 in the touch detection apparatus 100 will be described separately below.
Referring to fig. 1, a vibration generation layer 110 in a touch sensing device 100 includes a first dielectric layer 111 and a first electrode 112 according to an example of the present invention. The first dielectric layer 111 has two relatively large surfaces, and the first electrodes 112 are located on both sides of the two relatively large surfaces of the first dielectric layer 111. The vibration receiving layer 120 in the touch detection device 100 includes: a second dielectric layer 121, and a second electrode 122. The second dielectric layer 121 also has two relatively large surfaces, and the second electrodes 122 are respectively located on two sides of the two relatively large surfaces of the second dielectric layer 121. Alternatively, the first electrode 112 and the second electrode 122 may be composed of upper and lower electrode layers, respectively. For example, the first electrode 112 includes a first upper electrode layer 1121 and a first lower electrode layer 1122; the second electrode 122 includes a second upper electrode layer 1221 and a second lower electrode layer 1222. The first upper electrode layer 1121 and the first lower electrode layer 1122 are respectively located at two sides of the first dielectric layer 111; the second upper electrode layer 1221 and the second lower electrode layer 1222 are respectively located at both sides of the second dielectric layer 121.
According to another example of the invention, in an embodiment including the vibration transmission layer 130, the vibration transmission layer 130 is located between the first electrode 112 of the vibration generating layer 110 and the second electrode 122 of the vibration receiving layer 120. For example, the vibration transmission layer 130 may be located between the first upper electrode layer 1121 of the first electrode 112 of the vibration generation layer 110 and the second lower electrode layer of the second electrode 122 of the vibration reception layer 120.
According to the above configuration, the vibration state of the touch detection apparatus 100 differs between when no touch is received and when a touch operation is received. For example, when a user does not perform operations such as touch control or holding on a position in the electronic device where the touch detection device 100 is disposed, the vibration generation layer 110 and the vibration reception layer 120 of the touch detection device 100 are in an initial vibration state. When a user touches a location where the touch detection device is disposed while using the electronic device, the vibration generation layer 110 and the entire receiving layer 120 of the touch detection device 100 are in a touch vibration state. In the touch vibration state, the touch detection device 100 detects a user touch operation.
When the touch detection device 100 does not receive a touch operation, the first electrode 112 in the vibration generation layer 110 receives a first voltage signal to generate a potential difference between the first upper electrode layer 1121 and the first lower electrode layer 1122. At this time, the first dielectric layer 111 (which may be made of a piezoelectric material) between the first upper electrode layer 1121 and the first lower electrode layer 1122 is deformed by the driving of an electric field force and generates a first vibration. Then, the first medium layer 111 transmits the first vibration to a second medium layer 121 (which may be made of a piezoelectric material) of the vibration receiving layer 120, and the second medium layer 121 generates a second vibration after receiving the first vibration, so that the second electrodes 122 on two sides of the second medium layer 121 generate an electric field to generate a first electric signal, which may be used as an original touch detection signal when the electronic device does not receive any touch.
On the other hand, when receiving a touch operation by the user, the touch detection apparatus 100 operates as follows. The first electrode 112 in the vibration generation layer 110 receives a first voltage signal to generate a potential difference between the first upper electrode layer 1121 and the first lower electrode layer 1122. At this time, the first dielectric layer 111 (which may be made of a piezoelectric material) between the first upper electrode layer 1121 and the first lower electrode layer 1122 is deformed by the driving of an electric field force to generate a first vibration. Then, the first medium layer 111 transmits the first vibration to the second medium layer 121 (which may be made of a piezoelectric material) of the vibration receiving layer 120, and the second medium layer 121 generates a second vibration after receiving the first vibration, and the vibration causes the electrodes on both sides of the second medium layer 121 to generate a voltage. For example, the second vibration may cause the second dielectric layer 121 to deform, and the deformation causes a potential difference between the two end electrodes, thereby forming a voltage. Meanwhile, when there is a touch operation, the touch operation may be transmitted to the vibration receiving layer 120 of the touch detection apparatus 100 inside through the metal casing of the electronic device. Therefore, when the vibration receiving layer 120 of the touch detection apparatus 100 receives a touch operation of a user, the touch operation causes the second dielectric layer 121 of the vibration receiving layer 120 to generate touch deformation, and the combination of the second vibration and the touch deformation causes the second electrodes 122 on two sides of the second dielectric layer 121 to generate an electric field so as to generate a second electrical signal, where the second electrical signal is a detected touch operation signal when the electronic device receives the touch operation.
Thus, when the touch detection device 100 of the electronic device detects that the touch detection signal is different from the original touch detection signal in the no-touch state, the information such as the time, the force, the position and the like of the user touch can be determined according to the ratio relationship, the difference relationship, the matching degree and other parameters between the touch detection signal and the original touch detection signal.
According to an example of the present invention, the first electrode 112 in the vibration generation layer 110 receiving the first voltage signal may be generated by a voltage input unit 115 of the touch detection apparatus 100. The first voltage signal transmitted by the voltage input unit 115 may be periodic or aperiodic. For example, it may be a square wave, a sine wave. Of course, it should be understood by those skilled in the art that the voltage input unit 115 may also be a device external to the touch detection device 100 and connected to the touch detection device 100, for example, the voltage input unit 115 may be another component in the electronic device, and the first voltage signal may be periodically or aperiodically transmitted to the touch detection device 100 under the instruction of the electronic device.
According to an example of the present invention, the first medium layer 111 and/or the second medium layer 121 may be made of a piezoelectric material that generates a piezoelectric effect, and when the piezoelectric material dielectric is deformed by an external force in a certain direction, a polarization phenomenon is generated inside the dielectric, and charges of opposite polarities are generated on two opposite outer surfaces of the dielectric. When the external force is removed, it can be restored to its uncharged state, and when the direction of the applied force is changed, the polarity of the charge can be changed. Conversely, when an electric field is applied in the direction of polarization of the dielectrics, these dielectrics also deform, and after the electric field is removed, the deformation of the dielectrics disappears. According to an example of the present invention, the first medium layer 111 and/or the second medium layer 121 generate ultrasonic waves or infrasonic waves when vibrating. The ultrasonic or infrasonic waves may be plane waves or non-plane waves. Optionally, the first electrode 112 and the second electrode 122 are flexible electrodes, and may also deform when the first dielectric layer 111 and/or the second dielectric layer vibrate, and ensure a smaller vibration loss rate while transmitting vibration.
The touch detection device is constructed by using the electrode layer and the dielectric layer, the detection of the touch operation of a user is realized through the corresponding conversion of the electric signal and the pressure value, and the vibration wave is not shielded by the metal shell of the electronic equipment in the detection process, so that the touch operation of various electronic equipment comprising the metal shell can be effectively detected.
The touch detection device 100 is described in detail in the above embodiments, and the present embodiment further improves the electrode structure in the above embodiments on the basis of the above embodiments in order to better detect the touch position of the touch detection device.
Fig. 2 shows a block diagram of a touch sensing device 200 according to an embodiment of the invention. The functions of the components of the touch detection device 200 are similar to those of the touch detection device 100, and for the sake of brevity of the description, only the modified portion of the second electrode portion of the touch detection device 200 will be described in detail below, and other components will be briefly described.
Referring to fig. 2, the touch sensing apparatus 200 according to an embodiment of the present invention includes: a vibration generation layer 210 for receiving the first voltage signal and generating a first vibration according to the first voltage signal; and a vibration receiving layer 220 for receiving the first vibration and/or the touch of the operating body and generating a touch operation signal according to the first vibration and/or the touch of the operating body. Optionally, the touch sensing device 100 may further include a vibration transmission layer 230 between the vibration generation layer 210 and the vibration receiving layer 220 for transmitting the first vibration generated by the vibration generation layer 210 to the vibration receiving layer 220.
Wherein the vibration generation layer 210 includes: a first dielectric layer 211, a first electrode 212. The first dielectric layer 211 includes two relatively large surfaces, and the first electrode 212 is disposed on two sides of the two relatively large surfaces of the first dielectric layer 211. The vibration receiving layer 220 in the touch detection device 200 includes: a second dielectric layer 221, and a second electrode 222. The second dielectric layer 221 also has two relatively large surfaces, and the second electrode 222 is located on both sides of the two relatively large surfaces of the second dielectric layer 221. Alternatively, the first electrode 212 and the second electrode 222 may be composed of upper and lower electrode layers, respectively. For example, the first electrode 212 includes a first upper electrode layer 2121 and a first lower electrode layer 2122; the second electrode 222 includes a second upper electrode layer 2221 and a second lower electrode layer 2222. The first upper electrode layer 2121 and the first lower electrode layer 2122 are respectively located at two sides of the first dielectric layer 211; the second upper electrode layer 2221 and the second lower electrode layer 2222 are respectively located at both sides of the second dielectric layer 221. In addition, the vibration transmitting layer 230 may be located between the first upper electrode layer 2121 of the first electrode 212 of the vibration generating layer 210 and the second lower electrode layer 2122 of the second electrode 222 of the vibration receiving layer 220.
In the embodiment of the present invention, referring to fig. 2, the second upper electrode layer 2221 of the second electrode 222 in the vibration receiving layer 220 includes a plurality of electrode areas 2225, and each electrode area 2225 independently generates a sub-touch operation signal of the electrode area according to the second vibration of the second dielectric layer 221 corresponding to the electrode area.
According to the above configuration, the touch detection apparatus 200 operates as follows when no touch is received. The first electrode 212 in the vibration generation layer 210 receives a first voltage signal to generate a potential difference between the first upper electrode layer 2121 and the first lower electrode layer 2122. At this time, the first dielectric layer 211 (which may be made of a piezoelectric material) between the first upper electrode layer 2121 and the first lower electrode layer 2122 is deformed by the driving of the electric field force to generate a first vibration. Then, the first medium layer 211 continuously transmits the first vibration to the second medium layer 221 (which may be made of a piezoelectric material) of the vibration receiving layer 220, and the second medium layer 221 generates a second vibration after receiving the first vibration, so that each electrode area 2225 of the second electrodes 222 on both sides of the second medium layer 221 generates an electric field according to the vibration of the second medium layer 221, thereby generating sub-touch operation signals, respectively, where the sub-touch operation signals may be used as original sub-touch detection signals of the electrode area when the electronic device does not receive any touch.
On the other hand, the touch detection device 200 operates when receiving a touch operation as follows. The first electrode 212 in the vibration generation layer 210 receives a first voltage signal to generate a potential difference between the first upper electrode layer 2121 and the first lower electrode layer 2122. At this time, the first dielectric layer 211 (which may be made of a piezoelectric material) between the first upper electrode layer 2121 and the first lower electrode layer 2122 is deformed by the driving of the electric field force to generate a first vibration. Thereafter, the first medium layer 211 transmits the first vibration to the second medium layer 221 (which may be made of a piezoelectric material) of the vibration receiving layer 220, and the second medium layer 221 generates a second vibration upon receiving the first vibration. For example, the second vibration may cause second medium layer 221 to deform. Meanwhile, since the vibration receiving layer 220 of the touch detection apparatus 200 receives a touch operation of a user, the second dielectric layer 221 of the vibration receiving layer 220 is deformed by the touch, and thus, the combination of the second vibration and the touch deformation causes the second electrodes 222 on both sides of the second dielectric layer 221 to generate an electric field, thereby generating an electric signal. However, since the positions touched by the users are different, each electrode area 2225 of the second electrode 222 independently detects a sub-touch electric signal according to the touch position of the user, and uses the electric signal as a sub-touch operation signal when the area receives a touch operation. For example, when the user holds the electronic device with the right hand, there may be four fingers or palm portions contacting the second electrode 222, and the electrode area 2225 contacting the four fingers or palm portions will generate the sub-touch detection signal, while the portion not contacting the palm or fingers of the user will not generate the sub-touch operation signal.
In this way, each region of the touch detection apparatus 200 detects the sub-touch operation signal of the region, and if the detected sub-touch detection signal is different from the original touch detection signal, the information such as the time and the force of the user touch can be determined according to the ratio relationship, the difference relationship, the matching degree, and other parameters between the sub-touch detection signal and the original touch detection signal. And determining user touch position information according to the electrode area in which the sub-touch detection signal is detected.
According to the embodiment of the invention, the electrode is divided into a plurality of areas, and each area independently detects the touch detection signal, so that the touch position of the user on the electronic equipment is further accurate, and the detection precision is improved.
The above two embodiments describe the structural features of the touch detection device, and the following embodiments further describe the structure and operation of the electronic device using the touch detection device to detect the touch signal.
Fig. 3 depicts a structural relationship diagram between the electronic device 300 and the touch detection apparatus 100 according to another embodiment of the invention. The positional relationship between the electronic device 300 and the touch detection apparatus in fig. 1 or 2 will be described below with reference to fig. 3.
Referring to fig. 3, the electronic device 300 includes: a housing 310, a touch sensing unit 320, and a display unit 330. The touch sensing unit 320 can penetrate through the housing 310 to sense a touch operation of the operating body, and generates a touch operation signal according to the touch operation. The display unit 330 is configured to display corresponding display content according to the touch operation signal. Alternatively, the housing 310 may be made of a metal or glass material. The touch sensing unit 320 is implemented by the touch detection device in the first embodiment and the second embodiment. Referring to fig. 3, in the electronic device 300, the touch sensing unit 320 includes two touch detection devices 321 and 322. The touch sensing device 321 is located at the left side of the inside of the housing of the electronic device 310, and the touch sensing device 322 is located at the right side of the inside of the housing 310. In order to effectively detect the touch operation of the user operation body, the vibration receiving layers of the touch detection devices 321 and 322 are disposed close to the electronic device case, and the vibration generating layers are disposed close to the internal components of the electronic device. That is, the vibration receiving layer of the touch detection device 321 is located at the left side of the electronic apparatus, closest to the inner wall of the housing 310; the vibration receiving layer of the touch sensing device 322 is located at the right side of the electronic apparatus, closest to the inner wall of the housing 310. In this way, when the user holds the electronic apparatus with one hand, the touch detection device 321 on the left side and the touch detection device 322 on the right side of the electronic apparatus can detect the finger holding state of the user. For example, whether the user holds the electronic apparatus left or right or holds the electronic apparatus right is determined based on the number of fingers detected by the left-side and right-side touch detection means.
According to an example of the present invention, the touch operation of the operation body includes: the touch operations at different positions, for example, the touch operation at the first position and the touch operation at the second position. The vibration receiving layers of the touch sensing devices 321 and 322 may generate different touch operation signals according to the touch operation position of the operation body, and the display unit 330 may display different display contents according to the different touch operation signals. For example, when the user holds the electronic device with the right hand, the touch detection device 321 on the left side may detect 4 finger touch information, and the touch detection device 322 on the right side may detect 1 finger touch information. When the user holds the electronic device with the left hand, the touch detection device 321 on the left side can detect 1 finger touch information, and the touch detection device 322 on the right side can detect 4 finger touch information. That is, since the touch operation positions of the left-hand grip and the right-hand grip are different, the detection signal obtained by the electronic apparatus is different. The electronic device can display different user interfaces according to different obtained detection signals. For example, when a right-hand grip is detected, a keyboard layout or a menu layout suitable for normal operation is displayed; when the left-handed person is detected to hold, the keyboard layout or the menu layout suitable for left-handed operation is displayed, so that the use habits of different users are adapted, the operation function is more flexible, and the use of the user is facilitated.
According to an example of the present invention, the electronic device may include a processor (not shown), and the processor may be configured to receive the touch operation signal or the sub-touch operation signal obtained from the touch detection apparatus and determine whether an object contacts the detection apparatus according to the touch operation signal or the sub-touch operation signal. Of course, those skilled in the art will appreciate that the processor may also be disposed inside the touch detection devices 321 and 322, directly receive the touch operation signals detected by the touch detection devices 321 and 322, determine the contact position of the operating body, and report the position information to the electronic device.
According to another example of the present invention, the electronic device further comprises: an analog-to-digital converter (not shown), a digital-to-analog converter (not shown), for conversion between analog and digital signals. A voltage input unit of the electronic device periodically transmits a digital voltage signal to a digital-to-analog converter, and the digital-to-analog converter converts the digital voltage signal into an analog voltage signal and transmits the analog voltage signal to a first electrode of the vibration generation layer. When the touch detection device obtains the touch operation signal or the sub-touch operation signal, the signal is sent to the analog-to-digital converter, and the analog-to-digital converter converts the touch operation signal or the sub-touch operation signal into a digital voltage signal and sends the digital voltage signal to the processor.
The embodiment of the invention uses the touch detection device for the electronic equipment to detect the touch operation of the user and know the use habit of the user on the electronic equipment according to the detection information, thereby providing the service function in a targeted manner and improving the user experience.
The three embodiments described above describe the touch detection device and the electronic apparatus using the touch detection device to perform touch detection, and further describe a touch detection method corresponding to the touch detection device.
FIG. 4 depicts a flow diagram of a touch detection method 400 according to one embodiment of the invention. The touch detection method 400 will be described below with reference to fig. 4. The touch detection method 400 may be applied to the electronic device described above, which may be configured to detect and process a touch operation. The touch detection method corresponds to the function of the touch detection device, and for the sake of brief introduction of the description, only a brief description will be given below.
Referring to fig. 4, in step S401, a first voltage signal is received and a first vibration is generated according to the first voltage signal. According to one example of the present invention, a first electrode in a vibration generation layer of a touch detection device receives a first voltage signal to generate a potential difference between a first upper electrode layer and a first lower electrode layer of the first electrode. At this time, the first dielectric layer (which may be made of a piezoelectric material) between the first upper electrode layer and the first lower electrode layer is deformed and generates a first vibration by being driven by an electric field force.
In step S402, a first vibration is received, and a touch operation signal is generated according to the first vibration and a touch operation of the operation body. According to one example of the present invention, the first medium layer of the touch sensing device transmits the first vibration to a second medium layer (which may be made of a piezoelectric material) of the vibration receiving layer, and the second medium layer generates a second vibration after receiving the first vibration. The second vibration may cause the second dielectric layer to deform. When an operation body touches, the vibration receiving layer of the touch detection device receives the touch operation of a user at the same time, and the second dielectric layer of the vibration receiving layer is subjected to touch deformation at the same time, so that the second electrodes on two sides of the second dielectric layer generate electric fields to generate second electric signals through the combination of the second vibration and the touch deformation, and the second electric signals can be used as touch detection signals of electronic equipment when the touch operation is received.
Or, when the second electrode of the vibration receiving layer is divided into a plurality of electrode areas, the plurality of electrode areas of the second electrode of the vibration receiving layer independently detect a sub-electric signal of the area according to the touch position of the user, and the sub-electric signal is used as a sub-touch operation signal when the electronic device receives the touch operation.
In step S403, corresponding display content is displayed according to the touch operation signal. According to an example of the present invention, whether an operating body touches the electronic device and a touch position are determined according to a touch detection signal detected by the touch detection device. And comparing the obtained touch detection signal or sub-touch detection signal with an original touch detection signal or an original sub-touch detection signal which is not subjected to touch operation by any operation body, and if the obtained touch detection signal or sub-touch detection signal is different from the original touch detection signal or the original sub-touch detection signal, indicating that the touch operation signal is detected. The information such as time, force, position and the like of the user touch can be determined according to the ratio relation, the difference relation, the matching degree and the like between the two. And providing corresponding display content in a display unit of the electronic device according to the determined information. For example, when the user holds the electronic device with the right hand, the touch detection device on the left side of the electronic device may detect 4 finger touch information, and the touch detection device on the right side of the electronic device may detect 1 finger touch information. When the user holds the electronic device with the left hand, the touch detection device on the left side of the electronic device can detect 1 finger touch information, and the touch detection device on the right side of the electronic device can detect 4 finger touch information. Displaying a keyboard layout or a menu layout suitable for normal operation when it is determined that the user is held by the right hand; when it is determined to be left-handed holding, a keyboard layout or a menu layout suitable for left-handed operation is displayed. Of course, the invention is not limited to this, and the electronic device may provide other functions according to the holding manner and the touch manner of the user.
According to the embodiment of the invention, the electronic equipment is enabled to display different contents according to the detection information of the touch operation, so that the use habits of different users are adapted, the user operation is enabled to be faster and more convenient, and the user experience is improved.
Those of ordinary skill in the art will appreciate that the various illustrative layers and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. And the software modules may be disposed in any form of computer storage media. To clearly illustrate this interchangeability of hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It should be understood by those skilled in the art that various modifications, combinations, partial combinations and substitutions may be made in the present invention depending on design requirements and other factors as long as they are within the scope of the appended claims and their equivalents.
Claims (16)
1. A touch detection device applied to an electronic device, the device comprising:
the vibration generation layer is used for receiving a first voltage signal and generating first vibration according to the first voltage signal;
the vibration receiving layer is used for receiving the first vibration and touch of an operation body and generating a touch operation signal according to the first vibration and the touch of the operation body;
wherein the apparatus further comprises: a vibration transmission layer;
the vibration transmission layer is located between the vibration generation layer and the vibration receiving layer and used for transmitting the first vibration generated by the vibration generation layer to the vibration receiving layer.
2. The apparatus of claim 1, wherein,
the vibration generating layer includes:
a first dielectric layer;
the first electrodes are positioned on two sides of the first medium layer and receive a first voltage signal; wherein,
the first dielectric layer deforms under the action of the first voltage signal to generate a first vibration
Moving;
the vibration receiving layer includes:
the second medium layer receives the first vibration and receives the touch of the operation body;
the second electrodes are positioned on two sides of the second dielectric layer; wherein,
the second medium layer generates second vibration according to the first vibration and the touch of the operation body;
the second electrode generates the touch operation signal according to the second vibration.
3. The apparatus of claim 2, wherein,
the second electrode comprises a plurality of electrode areas, and the touch operation signal comprises a plurality of sub-touch operation signals;
each electrode area of the second electrode independently generates a sub-touch operation signal of the area according to the second vibration of the second medium layer corresponding to the area.
4. The apparatus of claim 1, wherein the apparatus further comprises: a processor;
the processor receives the touch operation signal and determines whether an object contacts the detection device according to the touch operation signal.
5. The apparatus of claim 3, wherein the apparatus further comprises: a processor;
the processor receives the sub-touch operation signal and determines whether an object contacts the detection device according to the sub-touch operation signal.
6. The apparatus of claim 5, the apparatus further comprising: a voltage input unit;
the voltage input unit periodically or non-periodically transmits a voltage signal to the first electrode to cause the vibration generation layer to generate the first vibration.
7. The apparatus of claim 6, the apparatus further comprising: an analog-to-digital converter;
the voltage input unit transmits a digital voltage signal to the digital-to-analog converter;
the digital-to-analog converter converts the digital voltage signal into an analog voltage signal and transmits the analog voltage signal to the first electrode;
and the analog-to-digital converter receives the touch operation signal or the sub-touch operation signal, converts the touch operation signal or the sub-touch operation signal into a digital voltage signal and sends the digital voltage signal to the processor.
8. The apparatus of claim 2, wherein,
the first electrode comprises a first upper electrode layer and a first lower electrode layer;
the second electrode includes a second upper electrode layer and a second lower electrode layer;
the first upper electrode layer and the first lower electrode layer are respectively positioned at two sides of the first medium layer;
the second upper electrode layer and the second lower electrode layer are respectively positioned on two sides of the second dielectric layer.
9. The apparatus of claim 1, wherein,
the vibration receiving layer is arranged close to the electronic equipment shell;
the vibration generating layer is disposed adjacent to an internal device of the electronic apparatus.
10. The apparatus of claim 2, wherein,
the first dielectric layer and the second dielectric layer are made of piezoelectric materials.
11. An electronic device, the electronic device comprising:
a housing made of a metal or glass material;
the touch sensing unit penetrates through the shell to sense the touch operation of the operation body and generates a touch operation signal according to the touch operation;
wherein, the touch sensing unit includes: the touch detection device of any of claims 1-10;
and the display unit is used for displaying corresponding display content according to the touch operation signal.
12. The electronic device of claim 11,
the touch operation of the operation body includes: touch operation at a first position;
the touch operation signal includes: a first touch operation signal;
the vibration receiving layer generates the first touch operation signal according to the first vibration and touch operation of a first position of an operation body;
the display unit displays first display content according to the first touch operation signal.
13. The electronic device of claim 12,
the touch operation of the operation body includes: touch operation at a second position;
the touch operation signal includes: a second touch operation signal;
the vibration receiving layer generates a second touch operation signal according to the first vibration and touch operation of a second position of the operation body;
and the display unit displays second display content according to the second touch operation signal.
14. A touch detection method is applied to an electronic device, and comprises the following steps:
the vibration generation layer receives a first voltage signal and generates first vibration according to the first voltage signal;
the vibration transmission layer receives the first vibration and transmits the first vibration to the vibration receiving layer;
the vibration receiving layer receives the first vibration transmitted by the vibration transmission layer and generates a touch operation signal according to the first vibration and touch operation of an operation body;
and displaying corresponding display content according to the touch operation signal.
15. The method of claim 14, wherein the touch operation of the operation body comprises: touch operation at a first position; the touch operation signal includes: a first touch operation signal;
wherein the generating of the first vibration according to the first voltage signal comprises:
generating the first touch operation signal according to the first vibration and a touch operation of the first position of the operation body;
the step of displaying corresponding display content according to the touch operation signal comprises the following steps:
and displaying first display content according to the first touch operation signal.
16. The method of claim 15, wherein the touch operation of the operation body comprises: touch operation at a second position; the touch operation signal includes: a second touch operation signal;
wherein the generating of the first vibration according to the first voltage signal comprises:
generating the second touch operation signal according to the first vibration and the touch operation of the second position of the operation body;
the step of displaying corresponding display content according to the touch operation signal comprises the following steps:
and displaying second display content according to the second touch operation signal.
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| CN106020540B (en) * | 2016-05-18 | 2019-03-12 | 业成科技（成都）有限公司 | Touch module, touch-control pressure sensing method and electronic device |
| DE102017000441A1 (en) | 2017-01-19 | 2018-07-19 | e.solutions GmbH | Input device and method for detecting an input |
| CN106919285B (en) * | 2017-02-28 | 2021-01-15 | 北京小米移动软件有限公司 | Terminal |
| CN109508112B (en) * | 2018-11-23 | 2022-06-17 | 京东方科技集团股份有限公司 | Touch module, working method thereof and display device |
| CN112639895A (en) * | 2018-12-28 | 2021-04-09 | 深圳市柔宇科技股份有限公司 | People flow monitoring method and device and related equipment |
| CN110138372B (en) * | 2019-04-25 | 2021-04-09 | 华为技术有限公司 | Touch press key assembly, control circuit and electronic equipment |
| CN113760084A (en) * | 2020-06-02 | 2021-12-07 | 北京小米移动软件有限公司 | Vibration module, electronic device, vibration control method, vibration control device, and storage medium |
| WO2024148564A1 (en) * | 2023-01-12 | 2024-07-18 | 深圳市韶音科技有限公司 | Touch sensing apparatus |
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| CN102004573A (en) * | 2010-07-28 | 2011-04-06 | 深圳市汇顶科技有限公司 | Touch detection system and detection method thereof |
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