CN106909244B - Touch key, touch operation detection method, touch IC and electronic equipment - Google Patents
Touch key, touch operation detection method, touch IC and electronic equipment Download PDFInfo
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- CN106909244B CN106909244B CN201511032488.7A CN201511032488A CN106909244B CN 106909244 B CN106909244 B CN 106909244B CN 201511032488 A CN201511032488 A CN 201511032488A CN 106909244 B CN106909244 B CN 106909244B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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Abstract
The disclosure relates to a touch key, a touch operation detection method, a touch IC and an electronic device, and belongs to the technical field of touch. The touch key comprises: the touch control IC comprises a sensor assembly and a touch control IC electrically connected with the sensor assembly; the touch IC is electrically connected with a processor of the electronic equipment; the sensor assembly includes: touch sensors and touch force sensors; the touch force sensor is arranged below the touch sensor; the touch IC is used for sending a touch signal to the processor according to the sensing data respectively collected by the touch sensor and the touch force sensor. The touch force sensor is arranged below the touch sensor of the touch key outside the screen area of the electronic equipment and used for detecting the pressing force degree of a user on the touch key, so that the electronic equipment can make different responses according to the pressing force, the effect of expanding the operation mode of the touch key outside the screen is achieved, and the user experience is improved.
Description
Technical Field
The present disclosure relates to the field of touch technologies, and in particular, to a touch key, a touch operation detection method, a touch IC, and an electronic device.
Background
With the continuous development of touch technology, more and more electronic devices (such as mobile phones, tablet computers, etc.) use touch keys to replace traditional mechanical keys.
One of the most commonly used touch keys at present is a capacitive touch sensor key, which generally includes a capacitive touch sensor and a touch IC (Integrated Circuit) connected to the capacitive touch sensor, wherein the capacitive touch sensor includes a metal sensing sheet and a cover glass covering the metal sensing sheet, when a finger of a person touches the cover glass on the metal sensing sheet, a capacitor is formed between the metal sensing sheet and the finger because a human body is equivalent to a grounded capacitor, the inductive capacity of the capacitor is generally between several pF and several tens pF, when a high-frequency electrical signal is connected to the metal sensing sheet, a current is generated between the finger and the metal sensing sheet, and the touch IC can detect whether the body touches the metal sensing sheet according to whether the current is generated.
Disclosure of Invention
The embodiment of the disclosure provides a touch key, a touch operation detection method, a touch IC and an electronic device, and the technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a touch key, including:
the touch control device comprises a sensor assembly and a touch control IC electrically connected with the sensor assembly; the touch IC is electrically connected with a processor of the electronic equipment;
the sensor assembly includes: touch sensors and touch force sensors;
the touch force sensor is arranged below the touch sensor;
the touch IC is configured to acquire sensing data respectively acquired by the touch sensor and the touch force sensor, and send a touch signal to the processor according to the sensing data respectively acquired by the touch sensor and the touch force sensor, where the touch signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation.
Optionally, in the touch key:
the touch IC is configured to send a first touch signal to the processor when detecting that the upper surface of the touch key receives a touch operation according to the sensing data collected by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data collected by the touch sensor, wherein the first touch signal is used for indicating that the touch key receives a heavy pressing operation;
the touch IC is configured to send a second touch signal to the processor when detecting that the upper surface of the touch key receives a touch operation according to the sensing data collected by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is not greater than the preset threshold value according to the sensing data collected by the touch sensor, wherein the second touch signal is used for indicating that the touch key receives a light touch operation.
Optionally, the touch IC includes a first touch IC and a second touch IC;
the first touch IC is electrically connected with the touch sensor and the processor respectively;
the second touch IC is electrically connected with the touch force sensor and the processor respectively.
Optionally, in the touch key:
the first touch IC is used for sending a third touch signal to the processor when detecting that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor;
the second touch IC is used for sending a fourth touch signal to the processor when detecting that the pressure applied to the upper surface of the touch key is larger than a preset threshold value according to the sensing data collected by the touch force sensor.
Optionally, in the touch key, a gap is formed between the touch sensor and the touch force sensor, and the touch sensor and the touch force sensor form two poles of a capacitor;
the touch IC is configured to calculate a pressure value applied to the upper surface of the touch key according to the capacitance variation of the capacitor collected by the touch sensor.
Optionally, in the touch key, an insulating layer is disposed in a gap between the touch sensor and the touch force sensor, and the insulating layer is made of a high-dielectric-constant material.
Optionally, in the touch key, a gap between the touch sensor and the touch force sensor is filled with a flexible high dielectric constant material.
According to a second aspect of the embodiments of the present disclosure, a touch operation detection method is provided, where the touch operation detection method is used in a touch IC of a touch key, the touch key is disposed outside a screen area of an electronic device, the touch key further includes a sensor component electrically connected to the sensor component, the touch IC is electrically connected to a processor of the electronic device, the sensor component includes a touch sensor and a touch force sensor, the touch force sensor is disposed below the touch sensor, and the method includes:
the touch IC acquires sensing data respectively acquired by the touch sensor and the touch force sensor;
the touch IC sends a touch signal to the processor according to sensing data respectively collected by the touch sensor and the touch force sensor, where the touch signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation.
Optionally, the sending, by the touch IC, a touch signal to the processor according to sensing data respectively collected by the touch sensor and the touch force sensor includes:
when detecting that the upper surface of the touch key receives touch operation according to the sensing data acquired by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data acquired by the touch sensor, the touch IC sends a first touch signal to the processor, wherein the first touch signal is used for indicating that the touch key receives heavy pressure operation;
when the touch IC detects that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor and detects that the pressure applied to the upper surface of the touch key is not greater than the preset threshold value according to the sensing data collected by the touch sensor, the touch IC sends a second touch signal to the processor, wherein the second touch signal is used for indicating that the touch key receives light touch operation.
Optionally, the touch IC includes a first touch IC and a second touch IC, the first touch IC is electrically connected to the touch sensor and the processor, the second touch IC is electrically connected to the touch sensor and the processor, and the touch IC sends a touch signal to the processor according to sensing data collected by the touch sensor and the touch sensor, including:
when the first touch IC detects that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor, a third touch signal is sent to the processor;
and when detecting that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data acquired by the touch force sensor, the second touch IC sends a fourth touch signal to the processor.
According to a third aspect of the embodiments of the present disclosure, a touch IC is provided, where the touch IC is used in a touch key, the touch key is disposed outside a screen area of an electronic device, the touch key further includes a sensor component electrically connected to the sensor component, the touch IC is electrically connected to a processor of the electronic device, the sensor component includes a touch sensor and a touch force sensor, the touch force sensor is disposed below the touch sensor, and the touch IC includes:
the data acquisition module is used for acquiring sensing data respectively acquired by the touch sensor and the touch force sensor;
a signal sending module, configured to send a touch signal to the processor according to sensing data respectively acquired by the touch sensor and the touch force sensor, where the touch signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation.
Optionally, the signal sending module includes:
the first sending submodule is used for sending a first touch signal to the processor when the fact that the upper surface of the touch key receives touch operation is detected according to the sensing data collected by the touch sensor and the fact that the pressure applied to the upper surface of the touch key is larger than a preset threshold value is detected according to the sensing data collected by the touch sensor, and the first touch signal is used for indicating the touch key to receive heavy pressing operation;
and the second sending submodule is used for sending a second touch signal to the processor when detecting that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is not greater than the preset threshold value according to the sensing data collected by the touch sensor, and the second touch signal is used for indicating that the touch key receives light touch operation.
Optionally, the signal sending module includes:
the third sending submodule is used for sending a third touch signal to the processor when the fact that the upper surface of the touch key receives touch operation is detected according to the sensing data collected by the touch sensor;
and the fourth sending submodule is used for sending a fourth touch signal to the processor when the fact that the pressure applied to the upper surface of the touch key is larger than the preset threshold value is detected according to the sensing data collected by the touch force sensor.
According to a fourth aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including: a screen, a processor and a touch key as set forth in the first aspect of the embodiments of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
to sum up, the touch key provided by the embodiment of the present disclosure is disposed outside the screen area of the electronic device, and includes: the touch control device comprises a sensor assembly and a touch control IC electrically connected with the sensor assembly; the touch IC is electrically connected with a processor of the electronic equipment; the sensor assembly includes: touch sensors and touch force sensors; the touch sensor is arranged below the touch sensor, and the touch IC sends a touch signal to the processor according to sensing data respectively acquired by the touch sensor and the touch sensor. The touch force sensor is arranged below the touch sensor of the touch key outside the screen area of the electronic equipment and used for detecting the pressing force of a user on the touch key, so that the touch key outside the screen area can detect whether a human body is in contact or not, the pressure applied to the upper surface of the touch key can be detected, the electronic equipment can make different responses according to the pressure, the effect of expanding the operation mode of the touch key outside the screen is achieved, and the user experience is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of a touch key according to an exemplary embodiment;
FIG. 2A is a schematic diagram illustrating a touch key structure according to an exemplary embodiment;
FIG. 2B is a schematic diagram of a connection of the touch IC shown in FIG. 2A;
FIG. 3 is a flow diagram illustrating a touch operation detection method according to an exemplary embodiment;
FIG. 4 is a block diagram of a touch IC shown in accordance with an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a schematic structural diagram of a touch key according to an exemplary embodiment. The touch keys 110 are provided in an electronic device 10, such as a smartphone, a tablet, an e-book reader, a touch laptop, or a smart wearable device. As shown in fig. 1, the electronic device 10 may further include a screen 120, a cover glass 130 on the screen, and a housing 140 of the electronic device, wherein the touch key 110 is disposed outside the screen area of the screen 120.
In fig. 1, the touch key 110 includes: a sensor element 112 and a touch IC114 electrically connected to the sensor element 112; the touch IC114 is electrically connected to the processor 150 of the electronic device 10.
The sensor assembly 112 includes: a touch sensor 112a and a touch force sensor 112 b.
The touch sensor 112b is disposed below the touch sensor 112 a;
the touch IC114 is configured to acquire sensing data respectively acquired by the touch sensor and the touch sensor, and send a touch signal to the processor according to the sensing data respectively acquired by the touch sensor and the touch sensor, where the touch signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation.
To sum up, the touch key provided by the embodiment of the present disclosure is disposed outside the screen area of the electronic device, and includes: the touch control device comprises a sensor assembly and a touch control IC electrically connected with the sensor assembly; the touch IC is electrically connected with a processor of the electronic equipment; the sensor assembly includes: touch sensors and touch force sensors; the touch sensor is arranged below the touch sensor, and the touch IC sends a touch signal to the processor according to sensing data respectively acquired by the touch sensor and the touch sensor. The touch force sensor is arranged below the touch sensor of the touch key outside the screen area of the electronic equipment and used for detecting the pressing force of a user on the touch key, so that the touch key outside the screen area can detect whether a human body is in contact or not, the pressure applied to the upper surface of the touch key can be detected, the electronic equipment can make different responses according to the pressure, the effect of expanding the operation mode of the touch key outside the screen is achieved, and the user experience is improved.
Fig. 2A is a schematic structural diagram of a touch key according to an exemplary embodiment. The touch key 210 is disposed in an electronic device 20, such as a smartphone, a tablet, an e-book reader, a touch laptop, or a smart wearable device. As shown in fig. 2A, the electronic device 20 further includes a touch key 210, a screen 220, a cover glass 230 on the screen, and a housing 240 of the electronic device, wherein the touch key 210 is disposed outside a screen area of the screen 220.
In fig. 2A, the touch key 210 includes: a sensor element 212 and a touch IC214 electrically connected to the sensor element 212; the touch IC214 is electrically connected to the processor 250 of the electronic device 20.
The sensor assembly 212 includes: a touch sensor 212a and a touch force sensor 212 b.
The touch sensor 212b is disposed below the touch sensor 212 a.
The touch sensor 212b may be made of an ITO (Indium Tin Oxide) thin layer, an FPC (Flexible Printed Circuit), or a PET (polyethylene terephthalate) substrate Printed with silver paste.
Alternatively, the touch sensor 212b can be a capacitive pressure sensor, for example, a gap is formed between the touch sensor 212a and the touch sensor 212b, and the touch sensor 212a and the touch sensor 212b form two poles of capacitance; the touch IC214 can calculate the pressure value applied to the upper surface of the touch key 210 according to the capacitance variation of the capacitor collected by the touch sensor 212 b.
For example, the touch sensor 212b may include a metal sensing sheet, the metal sensing sheet included in the touch sensor 212b and the metal sensing sheet in the touch sensor 212a form a capacitor, a capacitance of the capacitor is proportional to a distance between the two metal sheets, when the surface of the touch key 210 is pressed, the distance between the two metal sheets is decreased, and the touch IC may determine a pressure value applied to the surface of the touch key 210 according to a change of the capacitance value.
In the embodiment of the present disclosure, the touch sensor 212a and the touch sensor 212b may share one touch IC, and specifically, the touch sensor 212a and the touch sensor 212b may be connected to a motherboard through FPC connectors, and connected to the same touch IC through motherboard traces. In general, the number of traces used for the touch sensor 212a and the touch force sensor 212b is relatively small, and only 2 to 3 traces are required.
In the embodiment of the present disclosure, the touch IC214 acquires sensing data respectively acquired by the touch sensor 212a and the touch sensor 212b, and sends a touch signal to the processor according to the sensing data respectively acquired by the touch sensor and the touch sensor, where the touch signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation.
For example, when the touch IC214 detects that the upper surface of the touch key 210 receives a touch operation according to the sensing data collected by the touch sensor 212a, and detects that the pressure applied to the upper surface of the touch key 210 is greater than a preset threshold value according to the sensing data collected by the touch sensor 212b, the touch IC sends a first touch signal to the processor 250, where the first touch signal is used to indicate that the touch key 210 receives a heavy pressing operation; when the touch IC214 detects that the upper surface of the touch key 210 receives a touch operation according to the sensing data collected by the touch sensor 212a, and detects that the pressure applied to the upper surface of the touch key 210 is not greater than the preset threshold value according to the sensing data collected by the touch sensor 212b, the touch IC sends a second touch signal to the processor 250, where the second touch signal is used to indicate that the touch key 210 receives a light touch operation.
Taking the smart phone provided with the touch key as an example, when a user touches the touch key, the touch IC detects that the upper surface of the touch key receives a touch operation according to sensing data collected by the touch sensor, and when it is detected that the pressure applied to the upper surface of the touch key is not greater than a preset threshold value according to the sensing data collected by the touch sensor, sends a first touch signal to the processor, and the processor determines that the user touch operation is a light touch operation according to the first touch signal, and at this time, may execute a first response corresponding to the touch key, such as returning to a higher-level page, returning to a desktop, and the like; if the touch IC detects that the upper surface of the touch key receives touch operation according to sensing data collected by a touch sensor and detects that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data collected by the touch force sensor, a second touch signal is sent to the processor, the processor determines that the user touch operation is a heavy pressing operation according to the second touch signal, and at the moment, a second response corresponding to the touch key can be executed, such as calling a background application management interface and the like; if the touch IC detects that the upper surface of the touch key does not receive the touch operation according to the sensing data collected by the touch sensor, and detects that the pressure applied to the upper surface of the touch key is greater than the preset threshold according to the sensing data collected by the touch sensor, at this time, it may be that the touch sensor fails or that the touch sensor has erroneously detected, the touch IC may not perform any processing, or may send a failure signal to the processor, so as to notify the processor that the touch key has failed.
Optionally, please refer to fig. 2B, which shows a connection diagram of a touch IC, wherein the touch IC214 may include a first touch IC214a and a second touch IC 214B. The first touch IC214a is electrically connected to the touch sensor 212a and the processor 250, respectively. The second touch IC214b is electrically connected to the touch sensor 212b and the processor 250, respectively.
The first touch IC214a and the second touch IC214b function as follows:
the first touch IC214a is capable of receiving sensing data collected by a touch sensor, and sending a third touch signal to the processor when it is detected that a touch operation is received by the upper surface of the touch key according to the sensing data collected by the touch sensor; the second touch IC214b can receive the sensing data collected by the touch sensor, and send a fourth touch signal to the processor when it is detected that the pressure applied to the upper surface of the touch key is greater than the predetermined threshold according to the sensing data collected by the touch sensor.
In this disclosure, an independent touch IC may be further provided for the touch sensor 212a and the touch force sensor 212b, where the touch IC is only responsible for collecting and analyzing sensor data corresponding to each touch IC, and is not connected to the judgment of the operation type, that is, when the touch IC corresponding to the touch sensor detects a touch operation, one touch signal is sent to the processor, when the touch IC corresponding to the touch force sensor detects that a pressure value exceeds a preset threshold value, another touch signal is sent to the processor, and when the processor receives the touch signals sent by the two touch ICs at the same time, it may be determined that the touch operation on the touch key is a re-pressing operation; if the processor only receives the control signal sent by the touch IC corresponding to the touch sensor at a certain moment, the touch operation on the touch key can be determined to be the light touch operation; and if the processor only receives the control signal sent by the touch IC corresponding to the touch force sensor at a certain moment, the touch key is considered to be in fault.
Optionally, since the touch sensor and the touch force sensor form a capacitor and a voltage difference exists between two ends of the capacitor, in the embodiment of the disclosure, an insulating layer may be disposed in a gap between the touch sensor and the touch force sensor, where the insulating layer is made of a high dielectric constant material, so as to avoid breakdown of the capacitor due to an excessively small distance between the touch sensor and the touch force sensor.
The insulating layer can be arranged close to the touch sensor and can also be arranged close to the touch force sensor.
Optionally, in another possible implementation manner, a flexible high-dielectric constant material may be further filled in a gap between the touch sensor and the touch force sensor, where the flexible high-dielectric constant material does not affect a change in a distance between the touch sensor and the touch force sensor when the touch key is subjected to pressure, and at the same time, a support may be formed between the touch sensor and the touch force sensor.
To sum up, the touch key provided by the embodiment of the present disclosure is disposed outside the screen area of the electronic device, and includes: the touch control device comprises a sensor assembly and a touch control IC electrically connected with the sensor assembly; the touch IC is electrically connected with a processor of the electronic equipment; the sensor assembly includes: touch sensors and touch force sensors; the touch sensor is arranged below the touch sensor, and the touch IC sends a touch signal to the processor according to sensing data respectively acquired by the touch sensor and the touch sensor. The touch force sensor is arranged below the touch sensor of the touch key outside the screen area of the electronic equipment and used for detecting the pressing force of a user on the touch key, so that the touch key outside the screen area can detect whether a human body is in contact or not, the pressure applied to the upper surface of the touch key can be detected, the electronic equipment can make different responses according to the pressure, the effect of expanding the operation mode of the touch key outside the screen is achieved, and the user experience is improved.
Fig. 3 is a flowchart illustrating a touch operation detection method according to an exemplary embodiment, where the method is applied to a touch IC of a touch key, the touch key is disposed outside a screen area of an electronic device, the touch key further includes a sensor element electrically connected to the sensor element, the touch IC is electrically connected to a processor of the electronic device, the sensor element includes a touch sensor and a touch force sensor, and the touch force sensor is disposed below the touch sensor. For example, the touch key may be a touch key corresponding to any one of the embodiments shown in fig. 1 or fig. 2A. As shown in fig. 3, the touch operation detection method may include the following steps:
in step 301, the touch IC obtains sensing data respectively collected by the touch sensor and the touch force sensor.
In step 302, the touch IC sends a touch signal to the processor according to the sensing data respectively collected by the touch sensor and the touch force sensor, where the touch signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation.
For example, when the touch IC is not a separate touch IC, the touch IC sends a first touch signal to the processor when detecting that the upper surface of the touch key receives a touch operation according to the sensing data collected by the touch sensor, and detects that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data collected by the touch sensor, where the first touch signal is used to indicate that the touch key receives a heavy pressing operation; the touch IC sends a second touch signal to the processor when detecting that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is not greater than a preset threshold value according to the sensing data collected by the touch force sensor, wherein the second touch signal is used for indicating that the touch key receives light touch operation.
Or, in a possible implementation manner, when the touch IC may include a first touch IC and a second touch IC, and the first touch IC is electrically connected to the touch sensor and the processor, respectively, and the second touch IC is electrically connected to the touch force sensor and the processor, respectively, the first touch IC sends a third touch signal to the processor when detecting that the touch operation is received by the upper surface of the touch key according to the sensing data collected by the touch sensor; and when detecting that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data acquired by the touch force sensor, the second touch IC sends a fourth touch signal to the processor.
To sum up, in the touch operation detection method provided in the embodiment of the present disclosure, by acquiring sensing data respectively acquired by a touch sensor and a touch force sensor, a touch signal is sent to the processor according to the sensing data respectively acquired by the touch sensor and the touch force sensor, where the touch signal is used to indicate a type of an operation received by the touch key, and the type of the operation includes: heavy press operation or light touch operation. When a touch force sensor is arranged below a touch sensor of a touch key outside a screen area of the electronic equipment, the pressing force of a user on the touch key is detected, so that the touch key outside the screen area can detect whether a human body is in contact or not, the pressure applied to the upper surface of the touch key can be detected, the electronic equipment can make different responses according to the pressure, the effect of expanding the operation mode of the touch key outside the screen is achieved, and the user experience is improved.
FIG. 4 is a block diagram of a touch IC shown in accordance with an exemplary embodiment. The touch IC may be implemented as a touch IC in the touch key shown in any one of fig. 1 or fig. 2A by a hardware circuit or a combination of software and hardware, and performs all or part of the steps in the embodiment shown in fig. 3, referring to fig. 4, the touch IC may include: a data acquisition module 501 and a signal transmission module 502.
And a data acquisition module 501 configured to acquire sensing data respectively acquired by the touch sensor and the touch force sensor.
A signal sending module 502 configured to send, to the processor, a touch signal according to sensing data respectively collected by the touch sensor and the touch force sensor, where the touch signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation.
Optionally, the signal sending module includes:
the first sending sub-module 502a is configured to detect that a touch operation is received by the upper surface of the touch key according to the sensing data collected by the touch sensor, and send a first touch signal to the processor when it is detected that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data collected by the touch sensor, where the first touch signal is used to indicate that the touch key receives a heavy-pressing operation.
The second sending submodule 502b is configured to send a second touch signal to the processor when it is detected that the upper surface of the touch key receives a touch operation according to the sensing data collected by the touch sensor and it is detected that the pressure applied to the upper surface of the touch key is not greater than the preset threshold value according to the sensing data collected by the touch sensor, where the second touch signal is used to indicate that the touch key receives a tap operation.
Optionally, the touch IC may also be implemented as the touch IC shown in fig. 2B by a hardware circuit or a combination of software and hardware, and the touch IC may include: a third transmit submodule 502c and a fourth transmit submodule 502 d.
The third sending submodule 502c is configured to send a third touch signal to the processor when it is detected that the touch operation is received on the upper surface of the touch key according to the sensing data collected by the touch sensor;
the third sending sub-module 502c may be implemented as all or part of the first touch IC in the touch ICs shown in fig. 2B.
The fourth sending submodule 502d is configured to send a fourth touch signal to the processor when it is detected that the pressure applied to the upper surface of the touch key is greater than the preset threshold value according to the sensing data collected by the touch sensor.
The fourth sending sub-module 502d may be implemented as all or part of the second touch IC in the touch ICs shown in fig. 2B.
To sum up, the touch IC provided in the embodiment of the present disclosure sends a touch signal to the processor according to the sensing data respectively collected by the touch sensor and the touch force sensor by obtaining the sensing data respectively collected by the touch sensor and the touch force sensor, where the touch signal is used to indicate a type of an operation received by the touch key, and the type of the operation includes: heavy press operation or light touch operation. When a touch force sensor is arranged below a touch sensor of a touch key outside a screen area of the electronic equipment, the pressing force of a user on the touch key is detected, so that the touch key outside the screen area can detect whether a human body is in contact or not, the pressure applied to the upper surface of the touch key can be detected, the electronic equipment can make different responses according to the pressure, the effect of expanding the operation mode of the touch key outside the screen is achieved, and the user experience is improved.
An embodiment of the present disclosure further provides an electronic device, which includes: a screen, a processor, and a touch key, wherein the touch key may be the touch key shown in any one of the embodiments of fig. 1 or fig. 2A.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A touch key is used in an electronic device, the touch key is disposed outside a screen area of the electronic device, the touch key and the screen area are covered by a same cover glass, and the touch key includes:
the touch control device comprises a sensor assembly and a touch control IC electrically connected with the sensor assembly; the touch IC is electrically connected with a processor of the electronic equipment;
the sensor assembly includes: the touch force sensor is a capacitive pressure sensor, a gap is formed between the touch sensor and the touch force sensor, a flexible high-dielectric constant material is filled in the gap, and the touch sensor and the touch force sensor form two poles of a capacitor;
the touch force sensor is arranged below the touch sensor;
the touch control IC is configured to acquire sensing data respectively acquired by the touch sensor and the touch force sensor, and send a touch control signal to the processor according to the sensing data respectively acquired by the touch sensor and the touch force sensor, where the touch control signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation;
the touch IC is used for calculating the pressure value applied to the upper surface of the touch key according to the capacitance variation of the capacitor collected by the touch force sensor.
2. The touch key of claim 1,
the touch IC is used for sending a first touch signal to the processor when detecting that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data collected by the touch sensor, wherein the first touch signal is used for indicating that the touch key receives heavy pressing operation;
the touch IC is used for sending a second touch signal to the processor when detecting that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is not greater than the preset threshold value according to the sensing data collected by the touch force sensor, and the second touch signal is used for indicating that the touch key receives light touch operation.
3. The touch key of claim 1, wherein the touch ICs include a first touch IC and a second touch IC;
the first touch IC is electrically connected with the touch sensor and the processor respectively;
the second touch IC is electrically connected with the touch force sensor and the processor respectively.
4. The touch key of claim 3,
the first touch IC is used for sending a third touch signal to the processor when the fact that the upper surface of the touch key receives touch operation is detected according to the sensing data collected by the touch sensor;
and the second touch IC is used for sending a fourth touch signal to the processor when detecting that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data collected by the touch force sensor.
5. The touch key of claim 1, wherein an insulating layer is disposed in a gap between the touch sensor and the touch force sensor, and the insulating layer is made of a high-k material.
6. A touch operation detection method is used in a touch IC of a touch key, the touch key is arranged outside a screen area of an electronic device, the touch key further comprises a sensor assembly electrically connected with the touch IC, the touch IC is electrically connected with a processor of the electronic device, the sensor assembly comprises a touch sensor and a touch force sensor, the touch force sensor is a capacitive pressure sensor, a gap is formed between the touch sensor and the touch force sensor, the gap is filled with a flexible high-dielectric constant material, the touch sensor and the touch force sensor form two poles of a capacitor, the touch force sensor is arranged below the touch sensor, the touch key and the screen area are covered by the same cover glass, and the method comprises the following steps:
the touch IC acquires sensing data respectively acquired by the touch sensor and the touch force sensor;
the touch IC sends a touch signal to the processor according to sensing data respectively acquired by the touch sensor and the touch force sensor, wherein the touch signal is used for indicating the type of operation received by the touch key, and the type of operation comprises: heavy press operation or light touch operation;
and the touch IC calculates the pressure value applied to the upper surface of the touch key according to the capacitance variation of the capacitor collected by the touch force sensor.
7. The method of claim 6, wherein the sending, by the touch IC, the touch signal to the processor according to the sensing data respectively collected by the touch sensor and the touch force sensor comprises:
when detecting that the upper surface of the touch key receives touch operation according to sensing data collected by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data collected by the touch force sensor, the touch IC sends a first touch signal to the processor, wherein the first touch signal is used for indicating that the touch key receives heavy pressing operation;
and when detecting that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor and detecting that the pressure applied to the upper surface of the touch key is not greater than the preset threshold value according to the sensing data collected by the touch force sensor, the touch IC sends a second touch signal to the processor, wherein the second touch signal is used for indicating that the touch key receives light touch operation.
8. The method of claim 6, wherein the touch ICs comprise a first touch IC and a second touch IC, the first touch IC is electrically connected to the touch sensor and the processor, respectively, the second touch IC is electrically connected to the touch sensor and the processor, respectively, and the touch IC sends a touch signal to the processor according to sensing data collected by the touch sensor and the touch sensor, respectively, comprising:
when the first touch IC detects that the upper surface of the touch key receives touch operation according to the sensing data collected by the touch sensor, the first touch IC sends a third touch signal to the processor;
and when detecting that the pressure applied to the upper surface of the touch key is greater than a preset threshold value according to the sensing data acquired by the touch force sensor, the second touch IC sends a fourth touch signal to the processor.
9. The utility model provides a touch IC which characterized in that for in the touch-control button, the touch-control button sets up outside electronic equipment's screen area, just the touch-control button still include with the sensor package that touch-control IC electrical property links to each other, touch-control IC with electronic equipment's treater electrical property links to each other, sensor package includes touch sensor and touch force sensor, touch force sensor is capacitanc pressure sensor, touch sensor with a clearance has between the touch force sensor, it has flexible high dielectric constant material to fill in the clearance, just touch sensor with touch force sensor constitutes the two poles of the earth of electric capacity, touch force sensor set up in touch sensor's below, the touch-control button with the screen area is covered by same glass cover, touch IC includes:
the data acquisition module is used for acquiring sensing data respectively acquired by the touch sensor and the touch force sensor;
a signal sending module, configured to send a touch signal to the processor according to sensing data respectively acquired by the touch sensor and the touch force sensor, where the touch signal is used to indicate a type of operation received by the touch key, and the type of operation includes: heavy press operation or light touch operation;
and the module is used for calculating the pressure value applied to the upper surface of the touch key according to the capacitance variation of the capacitor collected by the touch force sensor.
10. The touch IC of claim 9, wherein the signaling module comprises:
the first sending submodule is used for sending a first touch signal to the processor when the fact that the upper surface of the touch key receives touch operation is detected according to the sensing data collected by the touch sensor and the fact that the pressure applied to the upper surface of the touch key is larger than a preset threshold value is detected according to the sensing data collected by the touch force sensor, and the first touch signal is used for indicating the touch key to receive repeated pressing operation;
and the second sending submodule is used for sending a second touch signal to the processor when the fact that the upper surface of the touch key receives touch operation is detected according to the sensing data collected by the touch sensor and the fact that the pressure applied to the upper surface of the touch key is not more than the preset threshold value is detected according to the sensing data collected by the touch force sensor, and the second touch signal is used for indicating that the touch key receives light touch operation.
11. The touch IC of claim 9, wherein the signal transmission module comprises:
the third sending submodule is used for sending a third touch signal to the processor when the fact that the upper surface of the touch key receives touch operation is detected according to the sensing data collected by the touch sensor;
and the fourth sending submodule is used for sending a fourth touch signal to the processor when the fact that the pressure applied to the upper surface of the touch key is larger than a preset threshold value is detected according to the sensing data collected by the touch force sensor.
12. An electronic device, characterized in that the electronic device comprises: a screen, a processor and a touch key according to any one of claims 1 to 5.
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| CN107577370B (en) * | 2017-08-31 | 2021-06-15 | 北京小米移动软件有限公司 | Touch device and electronic equipment |
| CN108037851B (en) * | 2017-12-11 | 2022-03-15 | 京东方科技集团股份有限公司 | Touch screen and touch display device |
| CN110687963B (en) * | 2018-07-04 | 2023-03-31 | 青岛海信移动通信技术股份有限公司 | Terminal with earphone touch key, key touch method and application |
| CN110278296B (en) * | 2019-06-05 | 2021-01-08 | 维沃移动通信有限公司 | Mobile terminal |
| CN114168003A (en) * | 2021-11-02 | 2022-03-11 | 北京小米移动软件有限公司 | Touch pad assembly, vibration feedback method, electronic device and storage medium |
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