CN107291280B - Method and device for adjusting sensitivity of touch screen and terminal equipment - Google Patents
Method and device for adjusting sensitivity of touch screen and terminal equipment Download PDFInfo
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- CN107291280B CN107291280B CN201610200054.1A CN201610200054A CN107291280B CN 107291280 B CN107291280 B CN 107291280B CN 201610200054 A CN201610200054 A CN 201610200054A CN 107291280 B CN107291280 B CN 107291280B
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- touch screen
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- G—PHYSICS
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
- G01B17/025—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness for measuring thickness of coating
Abstract
The embodiment of the invention relates to the technical field of electronics, and discloses a method and a device for adjusting the sensitivity of a touch screen and terminal equipment. The method for adjusting the sensitivity of the touch screen comprises the following steps: detecting whether the surface of the touch screen is covered with a film body; if the surface of the touch screen is covered with a film body, acquiring the thickness of the film body; and adjusting the sensitivity of the touch screen to a preset level corresponding to the thickness of the film body according to the thickness of the film body. By implementing the embodiment of the invention, the sensitivity of the touch screen can be automatically adjusted to the level adaptive to the thickness of the film body according to the thickness of the film body covered on the surface of the touch screen, so that the user experience is improved.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a method and a device for adjusting the sensitivity of a touch screen and terminal equipment.
Background
Due to the excellent interactivity of the touch screen, the touch screen is widely applied to various terminal devices, and brings convenience to work and life of people. However, the sensitivity of the touch screen is affected by many factors, such as temperature, humidity, whether a film is attached and the thickness of the film. For example, when the humidity is too high, the palm of the user's hand is relatively close to the touch screen without touching the touch screen, which may cause malfunction of the touch screen.
Some users attach a touch screen protective film to the touch screen in order to protect the touch screen from being scratched, the touch screen protective film is made of PVC (Polyvinyl Chloride), PET (Polyethylene Terephthalate), tempered glass, and the like, the thickness of the touch screen protective film is generally 0.1 mm to 0.5 mm, and the touch screen protective film has a certain thickness, so that the capacitance characteristic of the touch screen or the deformation degree of the touch screen when being touched is affected, and the sensitivity of the touch screen is further affected. In addition, the close degree of the touch screen protective film and the touch screen, and the drift phenomenon caused by static electricity when the film is attached by utilizing the static principle also influence the sensitivity of the touch screen.
Disclosure of Invention
The embodiment of the invention provides a method and a device for adjusting the sensitivity of a touch screen and terminal equipment, which can automatically adjust the sensitivity of the touch screen to a level suitable for influence factors according to the fact whether the surface of the touch screen is covered by a film body, the thickness of the film body, the ambient temperature, the ambient humidity and other factors, and further improve the user experience.
The first aspect of the embodiments of the present invention discloses a method for adjusting the sensitivity of a touch screen, which is applied to a terminal device having a touch screen, and includes:
detecting whether the surface of the touch screen is covered with a film body;
if the surface of the touch screen is covered with a film body, acquiring the thickness of the film body;
and adjusting the sensitivity of the touch screen to a preset grade corresponding to the thickness of the film body according to the thickness of the film body.
As an alternative embodiment, detecting whether the surface of the touch screen is covered with the film body comprises:
sending ultrasonic waves from the lower part of the touch screen to the direction vertical to the surface of the touch screen;
receiving the echo of the ultrasonic wave, and judging whether the surface of the touch screen is covered with a film body according to the echo;
obtaining a thickness of the membrane body, comprising:
and judging the thickness of the membrane body according to the echo.
As an optional implementation, adjusting the touch screen sensitivity to a preset level corresponding to the film thickness according to the film thickness includes:
according to the film thickness, the sensitivity of the touch screen is set to a preset sensitivity level corresponding to the film thickness; wherein, when the thickness of the film body is increased, the sensitivity grade corresponding to the thickness of the film body is increased by at least one grade.
As an alternative embodiment, detecting whether the surface of the touch screen is covered with the film body comprises:
and when the touch screen is started and/or awakened, detecting whether the surface of the touch screen is covered with the film body.
As an optional implementation, the method further comprises:
monitoring the ambient temperature;
according to the environment temperature, the sensitivity of the touch screen is set to a preset sensitivity level corresponding to the environment temperature; wherein the sensitivity level corresponding to the ambient temperature should be lowered by at least one level when the ambient temperature is raised.
As an optional implementation, the method further comprises:
monitoring the environmental humidity;
according to the environment humidity, the sensitivity of the touch screen is set to a preset sensitivity level corresponding to the environment humidity; wherein the sensitivity level corresponding to the ambient humidity should be lowered by at least one level when the ambient humidity is raised.
The second aspect of the embodiment of the present invention discloses a device for adjusting the sensitivity of a touch screen, which is applied to a terminal device having a touch screen, and includes:
the detection unit is used for detecting whether the surface of the touch screen is covered with the film body;
the thickness obtaining unit is used for obtaining the thickness of the film body when the surface of the touch screen is covered with the film body;
and the first adjusting unit is used for adjusting the sensitivity of the touch screen to a preset grade corresponding to the thickness of the film body according to the thickness of the film body.
As an optional implementation, the detection unit includes:
the ultrasonic wave transmitting subunit is used for transmitting ultrasonic waves from the lower part of the touch screen to the direction vertical to the surface of the touch screen;
an ultrasonic receiving subunit, configured to receive an echo of the ultrasonic wave;
the judging subunit is used for judging whether the surface of the touch screen is covered with a film body according to the echo;
the thickness obtaining unit is specifically configured to determine the thickness of the membrane body according to the echo.
As an optional implementation manner, the first adjusting unit is specifically configured to set the sensitivity of the touch screen to a preset sensitivity level corresponding to the thickness of the film body according to the thickness of the film body; wherein, when the thickness of the film body is increased, the sensitivity grade corresponding to the thickness of the film body is increased by at least one grade.
As an optional implementation manner, the detection unit is specifically configured to detect whether a surface of a touch screen of the terminal device is covered with a film body when the terminal device is turned on and/or awakened.
As an optional implementation, the apparatus further comprises:
the temperature monitoring unit is used for monitoring the ambient temperature;
the second adjusting unit is used for setting the sensitivity of the touch screen to a preset sensitivity level corresponding to the ambient temperature according to the ambient temperature; wherein the sensitivity level corresponding to the ambient temperature should be lowered by at least one level when the ambient temperature is raised.
As an optional implementation, the apparatus further comprises:
the humidity monitoring unit is used for monitoring the environment humidity;
the third adjusting unit is used for setting the sensitivity of the touch screen to a preset sensitivity level corresponding to the environmental humidity according to the environmental humidity; wherein the sensitivity level corresponding to the ambient humidity should be lowered by at least one level when the ambient humidity is raised.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment of the invention, whether the surface of the touch screen is covered with the film body is detected; and if the surface of the touch screen is covered with a film body, acquiring the thickness of the film body, and adjusting the sensitivity of the touch screen to a preset grade corresponding to the thickness of the film body according to the thickness of the film body. By implementing the embodiment of the invention, the sensitivity of the touch screen can be automatically adjusted to the level adaptive to the thickness of the film body according to the thickness of the film body covered on the surface of the touch screen, so that the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a touch screen sensitivity adjustment method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating another method for adjusting the sensitivity of a touch screen according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of another method for adjusting the sensitivity of a touch screen according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for adjusting sensitivity of a touch screen according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another apparatus for adjusting sensitivity of a touch screen according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal device disclosed in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a method and a device for adjusting the sensitivity of a touch screen, which can automatically adjust the sensitivity of the touch screen to a level adaptive to the thickness of a covering film body on the surface of the touch screen. The following are detailed below.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for adjusting sensitivity of a touch screen according to an embodiment of the present invention. The method for adjusting the sensitivity of the touch screen shown in fig. 1 may include the following steps:
101. the terminal device detects whether the surface of a touch screen of the terminal device is covered with a film body.
In this embodiment of the present invention, the terminal device may be various devices having a touch screen, including a touch screen mobile phone, a tablet computer, a Personal Digital Assistant (PDA), a Point of Sales (POS), and the like.
In the embodiment of the invention, the touch screen can be a resistance touch screen, a capacitance touch screen, an infrared touch screen and the like. In order to protect the touch screen from being scratched, a user can attach a touch screen protective film to the touch screen, and the touch screen of the types can still realize a touch function under the condition that the surface of the touch screen is covered by a film body. However, the film body material used for the touch screen protective film is PVC (Polyvinyl Chloride), PET (Polyethylene Terephthalate), tempered glass, etc., and since the touch screen protective film has a certain thickness and is different from the touch screen surface material, the touch screen sensitivity felt by the user when the touch screen protective film is used is affected. In general, the thicker the touch screen protective film is, the more obvious the effect of reducing the sensitivity of the touch screen is, and therefore, in order to correct the error caused by the touch screen protective film, the sensitivity of the touch screen needs to be correspondingly increased by at least one level.
As an alternative embodiment, the terminal device detects whether the touch screen surface of the terminal device is covered with the film body by using the ultrasonic principle. The terminal equipment transmits ultrasonic waves to the touch screen from the direction perpendicular to the touch screen below the touch screen, the ultrasonic waves are reflected at the interface of two materials to form echo waves due to the fact that the material of the touch screen protective film is different from the material of the touch screen, the terminal equipment receives the echo waves, whether the surface of the touch screen is covered with a film body or not is known through analyzing the characteristics of the echo waves, and the thickness of the film body can be obtained through calculation according to the parameters of the echo waves.
102. And if the surface of the touch screen is covered with the film body, the terminal equipment acquires the thickness of the film body.
As an alternative embodiment, the terminal device acquires the film thickness covered on the surface of the touch screen by using the ultrasonic principle. The terminal equipment transmits ultrasonic waves to the touch screen from the direction perpendicular to the touch screen below the touch screen, the ultrasonic waves can be reflected to form echo when encountering interfaces of different propagation media, the time difference of the echo generated by the upper surface and the lower surface of the film body is accurately measured, and the thickness of the film body can be calculated according to the propagation speed of the ultrasonic waves in the film body.
As an optional implementation manner, if the terminal device is configured with an ultrasonic fingerprint identification module, in the embodiment of the present invention, the functions of detecting whether the surface of the touch screen is covered by the film body and acquiring the thickness of the film body by using ultrasonic waves may be integrated in the ultrasonic fingerprint identification module, and the process is implemented by using an ultrasonic transceiver of the ultrasonic fingerprint identification module.
103. And the terminal equipment adjusts the sensitivity of the touch screen to a preset level corresponding to the thickness of the film body according to the thickness of the film body.
As an alternative embodiment, the sensitivity of the touch screen can be designed to be 1-10 ten sensitivity levels, and the larger the number is, the higher the sensitivity of the touch screen is. And if the touch screen protection film reduces the sensitivity of the touch screen sensed by the user, correspondingly increasing the sensitivity level. For example, the thickness of the touch screen protective film is generally between 0.1 mm and 0.5 mm, and if the thickness of the touch screen protective film is 0.2 mm and the initial touch screen sensitivity is set to 5, the touch screen sensitivity is increased by a level of 6 to offset the sensitivity reduction caused by the touch screen protective film.
By implementing the method described in fig. 1, the sensitivity of the touch screen can be automatically adjusted to a level corresponding to the thickness of the film body according to whether the surface of the touch screen is covered with the film body and the thickness of the film body. The influence of the screen film on the sensitivity is offset by the adjusted touch screen, and the user experience is better.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating another method for adjusting the sensitivity of a touch screen according to an embodiment of the present invention. As shown in fig. 2, the method may include the steps of:
201. and monitoring whether the terminal equipment is started or awakened.
In the embodiment of the invention, when the terminal device is started or awakened, whether the surface of the touch screen of the terminal device is covered with the film body (namely whether the touch screen protective film is pasted or not) is detected, and if the touch screen protective film is pasted, the sensitivity of the touch screen is adjusted to a corresponding level according to the thickness of the film body.
202. And if the terminal equipment is started or awakened currently, the terminal equipment sends ultrasonic waves to the direction vertical to the surface of the touch screen from the lower part of the touch screen.
203. And the terminal equipment receives the echo of the ultrasonic wave and judges whether the surface of the touch screen is covered with the film body or not according to the echo.
As an alternative embodiment, the terminal device detects whether the touch screen surface of the terminal device is covered with the film body by using the ultrasonic principle. The terminal equipment transmits ultrasonic waves to the touch screen from the direction perpendicular to the touch screen below the touch screen, the ultrasonic waves are reflected at the interface of two materials to form echo waves due to the fact that the material of the touch screen protective film is different from the material of the touch screen, the terminal equipment receives the echo waves, whether the surface of the touch screen is covered with a film body or not is known through analyzing the characteristics of the echo waves, and the thickness of the film body can be obtained through calculation according to the parameters of the echo waves.
204. And if the surface of the touch screen is covered with the membrane body, the terminal equipment judges the thickness of the membrane body according to the echo.
As an alternative embodiment, the terminal device uses the ultrasonic principle to obtain the film thickness of the surface covering. The terminal equipment transmits ultrasonic waves to the touch screen from the direction perpendicular to the touch screen below the touch screen, the ultrasonic waves can be reflected to form echo when encountering interfaces of different propagation media, the time difference of the echo generated by the upper surface and the lower surface of the film body is accurately measured, and the thickness of the film body can be calculated according to the propagation speed of the ultrasonic waves in the film body.
As an optional implementation manner, if the terminal device is configured with an ultrasonic fingerprint identification module, in the embodiment of the present invention, the functions of detecting whether the surface of the touch screen is covered by the film body and acquiring the thickness of the film body by using ultrasonic waves may be integrated in the ultrasonic fingerprint identification module, and the process is implemented by using an ultrasonic transceiver of the ultrasonic fingerprint identification module.
205. And the terminal equipment sets the sensitivity of the touch screen to a preset sensitivity level adaptive to the thickness of the film body according to the thickness of the film body.
As an alternative embodiment, the sensitivity of the touch screen can be designed to be 1-10 ten sensitivity levels, and the larger the number is, the higher the sensitivity of the touch screen is. And if the touch screen protection film reduces the sensitivity of the touch screen sensed by the user, correspondingly increasing the sensitivity level. For example, the thickness of the touch screen protective film is generally between 0.1 mm and 0.5 mm, and if the thickness of the touch screen protective film is 0.2 mm and the initial touch screen sensitivity is set to 5, the touch screen sensitivity is increased by a level of 6 to offset the sensitivity reduction caused by the touch screen protective film.
In the method described in fig. 2, ultrasonic waves are used to detect whether the surface of the touch screen is covered by the film body, the thickness of the film body covered on the surface of the touch screen is measured, and the sensitivity of the touch screen is adjusted to a level suitable for the thickness. The influence of the screen film on the sensitivity is offset by the adjusted touch screen, and the user experience is better.
Referring to fig. 3, fig. 3 is a schematic flow chart illustrating a method for adjusting sensitivity of a touch screen according to another embodiment of the present invention. As shown in fig. 3, the method may include the steps of:
301. and monitoring whether the terminal equipment is started or awakened.
302. And if the terminal equipment is started or awakened currently, the terminal equipment sends ultrasonic waves to the direction vertical to the surface of the touch screen from the lower part of the touch screen.
303. And the terminal equipment receives the echo of the ultrasonic wave and judges whether the surface of the touch screen is covered with the film body or not according to the echo.
304. And if the surface of the touch screen is covered with the membrane body, the terminal equipment judges the thickness of the membrane body according to the echo.
305. And the terminal equipment sets the sensitivity of the touch screen to a preset sensitivity level corresponding to the thickness of the film body according to the thickness of the film body.
306. And the terminal equipment monitors the ambient temperature.
As an alternative embodiment, the terminal device has a temperature sensor, and the ambient temperature is monitored by the temperature sensor for adjusting the reference of the sensitivity of the touch screen.
In the embodiment of the invention, the touch screen is an interactive device and is sensitive to the influence of the external environment temperature. Taking a capacitive touch screen as an example, the working principle of the capacitive touch screen is that a coupling capacitor is formed by a human body and the surface of the touch screen, for high-frequency current, the human body can suck a tiny current from a touch point, the changed current is received by electrodes distributed at four corners of the screen, and the position touched by a user is calculated after the relationship between the current and the distances from the electrodes at the four corners is analyzed. When the ambient temperature is high, the capacitance characteristic of the touch screen is changed, and the magnitude of the current absorbed by a human body from a touch point is changed, so that the phenomenon of 'drifting' of the touch screen is caused.
307. And the terminal equipment sets the sensitivity of the touch screen to a preset sensitivity level corresponding to the ambient temperature according to the ambient temperature.
As an alternative embodiment, the touch screen sensitivity is turned down by at least one level when the ambient temperature increases. For example, when the ambient temperature is 26 degrees celsius, the touch screen sensitivity is 5, and when the ambient temperature is increased to 30 degrees celsius, the touch screen sensitivity is decreased by one level, and is adjusted to 4.
308. And the terminal equipment monitors the environment humidity.
As an alternative embodiment, the terminal device has a humidity sensor, and the humidity sensor is used to monitor the ambient humidity for adjusting the reference of the sensitivity of the touch screen.
Humidity often has a large effect on the normal operation of electronic products. Still taking a capacitive touch screen as an example, the capacitive touch screen realizes its function by using the principle that the touch screen and a human body form a coupling capacitance, and the capacitance value of the capacitor is inversely proportional to the inter-electrode distance, is proportional to the relative area, and is also related to the dielectric insulation coefficient of the medium. When the humidity of the environment exceeds a certain degree, the insulation coefficient of the capacitor can be influenced, and the sensitivity of the touch screen is further changed. In humid weather, the touch screen may malfunction if the edge of the touch screen is held by hand, the palm is within 7 cm of the touch screen, or the body is within 15 cm of the touch screen. Therefore, when the ambient humidity exceeds a certain value, the sensitivity of the touch screen should be reduced accordingly to reduce malfunction and misoperation.
309. And the terminal equipment sets the sensitivity of the touch screen to a preset sensitivity level corresponding to the ambient humidity according to the ambient humidity.
In the embodiment of the invention, in order to reduce the misoperation of the touch screen caused by the increase of the environmental humidity, the sensitivity of the touch screen is reduced by at least one level when the environmental humidity rises.
By implementing the method described in fig. 3, the terminal device may automatically adjust the sensitivity of the touch screen to a level suitable for the influence factors according to whether the surface of the touch screen is covered with the film body, the thickness of the film body, the ambient temperature, the ambient humidity, and the like, thereby improving the user experience.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an apparatus for adjusting sensitivity of a touch screen according to an embodiment of the present invention. As shown in fig. 4, the apparatus may include:
and a detection unit 401 for detecting whether the surface of the touch screen is covered with the film body.
As an alternative embodiment, the detection unit 401 detects whether the touch screen surface of the terminal device is covered with the film body by using the ultrasonic principle. The detection unit 401 transmits ultrasonic waves to the touch screen from the direction perpendicular to the touch screen below the touch screen, the ultrasonic waves are reflected at the interface of two materials to form echo waves due to the fact that the material of the touch screen protective film is different from the material of the touch screen, the detection unit 401 receives the echo waves, whether the surface of the touch screen is covered with a film body or not is known through analyzing the characteristics of the echo waves, and the thickness of the film body can be obtained through calculation according to the parameters of the echo waves.
A thickness obtaining unit 402, configured to obtain a film thickness when the touch screen surface is covered with the film.
As an alternative embodiment, the thickness obtaining unit 402 obtains the thickness of the film covered on the surface of the touch screen by using the ultrasonic principle. The thickness obtaining unit 402 emits ultrasonic waves to the touch screen from the direction perpendicular to the touch screen below the touch screen, the ultrasonic waves are reflected by interfaces of different propagation media to form echoes, the time difference of the echoes generated on the upper surface and the lower surface of the film body is accurately measured, and the thickness of the film body can be calculated according to the propagation speed of the ultrasonic waves in the film body.
The first adjusting unit 403 is configured to adjust the sensitivity of the touch screen to a preset level corresponding to the thickness of the film body according to the thickness of the film body.
As an alternative embodiment, the sensitivity of the touch screen can be designed to be 1-10 ten sensitivity levels, and the larger the number is, the higher the sensitivity of the touch screen is. And if the touch screen protection film reduces the sensitivity of the touch screen sensed by the user, correspondingly increasing the sensitivity level. For example, the thickness of the touch screen protective film is generally between 0.1 mm and 0.5 mm, and if the thickness of the touch screen protective film is 0.2 mm and the initial touch screen sensitivity is set to 5, the first adjusting unit 403 increases the touch screen sensitivity by one level, which is set to 6, to counteract the sensitivity reduction caused by the touch screen protective film.
The apparatus described in fig. 4 can automatically adjust the sensitivity of the touch screen to a level corresponding to the thickness of the film body according to whether the surface of the touch screen is covered with the film body and the thickness of the film body. The influence of the screen film on the sensitivity is offset by the adjusted touch screen, and the user experience is better.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another touch screen sensitivity adjustment apparatus according to an embodiment of the disclosure. The apparatus shown in fig. 5 is optimized from the apparatus shown in fig. 4, and compared with the apparatus shown in fig. 4, the apparatus shown in fig. 5 has the following differences:
the detection unit 401 is specifically configured to detect whether the surface of the touch screen is covered with the film body when the touch screen is turned on and/or awakened.
The detection unit 401 specifically includes:
and an ultrasonic wave transmitting sub-unit 4011 for transmitting ultrasonic waves from below the touch screen to a direction perpendicular to the surface of the touch screen.
An ultrasonic wave receiving sub-unit 4012 is configured to receive an echo of the ultrasonic wave.
And the judging sub-unit 4013 is configured to judge whether the surface of the touch screen is covered with a film body according to the echo.
The thickness obtaining unit 402 is specifically configured to determine the thickness of the membrane body according to the echo.
A first adjusting unit 403, specifically configured to set the sensitivity of the touch screen to a preset sensitivity level corresponding to the film thickness according to the film thickness; wherein, when the thickness of the film body is increased, the sensitivity grade corresponding to the thickness of the film body is increased by at least one grade.
In contrast to the apparatus shown in fig. 4, the apparatus shown in fig. 5 further comprises:
and a temperature monitoring unit 404 for monitoring the ambient temperature.
A second adjusting unit 405, configured to set the sensitivity of the touch screen to a preset sensitivity level corresponding to the ambient temperature according to the ambient temperature; wherein, when the ambient temperature increases, the sensitivity level corresponding to the ambient temperature should be decreased by at least one level.
In the embodiment of the invention, the touch screen is an interactive device and is sensitive to the influence of the external environment temperature. Taking a capacitive touch screen as an example, the working principle of the capacitive touch screen is that a coupling capacitor is formed by a human body and the surface of the touch screen, for high-frequency current, the human body can suck a tiny current from a touch point, the changed current is received by electrodes distributed at four corners of the screen, and the position touched by a user is calculated after the relationship between the current and the distances from the electrodes at the four corners is analyzed. When the ambient temperature is high, the capacitance characteristic of the touch screen is changed, and the magnitude of the current absorbed by a human body from a touch point is changed, so that the phenomenon of 'drifting' of the touch screen is caused.
As an alternative embodiment, the second adjusting unit 405 adjusts the touch screen sensitivity down by at least one level when the ambient temperature increases. For example, when the ambient temperature is 26 degrees celsius, the touch screen sensitivity is 5, and when the ambient temperature is increased to 30 degrees celsius, the second adjusting unit 405 decreases the touch screen sensitivity by one level, and adjusts it to 4.
And a humidity monitoring unit 406 for monitoring the ambient humidity.
Humidity often has a large effect on the normal operation of electronic products. Still taking a capacitive touch screen as an example, the capacitive touch screen realizes its function by using the principle that the touch screen and a human body form a coupling capacitance, and the capacitance value of the capacitor is inversely proportional to the inter-electrode distance, is proportional to the relative area, and is also related to the dielectric insulation coefficient of the medium. When the humidity of the environment exceeds a certain degree, the insulation coefficient of the capacitor can be influenced, and the sensitivity of the touch screen is further changed. In humid weather, the touch screen may malfunction if the edge of the touch screen is held by hand, the palm is within 7 cm of the touch screen, or the body is within 15 cm of the touch screen. Therefore, when the ambient humidity exceeds a certain value, the sensitivity of the touch screen should be reduced accordingly to reduce malfunction and misoperation.
A third adjusting unit 407, configured to set the sensitivity of the touch screen to a preset sensitivity level corresponding to the ambient humidity according to the ambient humidity; wherein, when the ambient humidity increases, the sensitivity level corresponding to the ambient humidity should be decreased by at least one level.
The device shown in fig. 5 can automatically adjust the sensitivity of the touch screen to a level suitable for the influencing factors according to the factors such as whether the surface of the touch screen is covered with the film body, the thickness of the film body, the ambient temperature, the ambient humidity and the like, so as to improve the user experience.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 6, for convenience of illustration, only the portion related to the embodiment of the present invention is shown, and details of the technique are not disclosed, please refer to the method portion of the embodiment of the present invention. The terminal device may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal digital assistant), a POS (Point of Sales), a vehicle-mounted computer, and the like, taking the terminal device as the mobile phone as an example:
fig. 6 is a block diagram illustrating a partial structure of a mobile phone related to a terminal device provided in an embodiment of the present invention. Referring to fig. 6, the handset includes: a Radio Frequency (RF) circuit 601, a memory 602, an input unit 603, a display unit 604, a sensor 605, an audio circuit 606, a wireless fidelity (WiFi) module 607, a processor 608, and a power supply 609. Those skilled in the art will appreciate that the handset configuration shown in fig. 6 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile phone in detail with reference to fig. 6:
the RF circuit 601 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, receives downlink information of a base station and then processes the received downlink information to the processor 608; in addition, the data for designing uplink is transmitted to the base station. In general, the RF circuit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 601 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to global system for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.
The memory 602 may be used to store software programs and modules, and the processor 608 executes various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 602. The memory 602 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 603 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 603 may include a touch panel 6031 and other input devices 6032. The touch panel 6031, also referred to as a touch screen, may collect touch operations of a user on or near the touch panel 6031 (e.g., operations of a user on or near the touch panel 6031 using any suitable object or accessory such as a finger, a stylus, etc.) and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 6031 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 608, and can receive and execute commands sent by the processor 608. In addition, the touch panel 6031 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 603 may include other input devices 6032 in addition to the touch panel 6031. In particular, other input devices 6032 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 604 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The display unit 604 may include a display panel 6041, and the display panel 6041 may be configured by using a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel 6031 can cover the display panel 6041, and when the touch panel 6031 detects a touch operation on or near the touch panel 6031, the touch operation can be transmitted to the processor 608 to determine the type of the touch event, and then the processor 608 can provide a corresponding visual output on the display panel 6041 according to the type of the touch event. Although in fig. 6, the touch panel 6031 and the display panel 6041 are two separate components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 6031 and the display panel 6041 may be integrated to implement the input and output functions of the mobile phone.
The handset may also include at least one sensor 605, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 6041 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 6041 and/or the backlight when the mobile phone is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; in the embodiment of the invention, the mobile phone is provided with the temperature sensor and the humidity sensor, is used for monitoring the temperature and the humidity of the environment and is used for providing reference for adjusting the sensitivity of the touch screen. As for other sensors such as a gyroscope, a barometer, and an infrared sensor, which can be configured on the mobile phone, detailed description is omitted here.
WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 607, and provides wireless broadband internet access for the user. Although fig. 6 shows the WiFi module 607, it is understood that it does not belong to the essential constitution of the handset, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 608 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 602 and calling data stored in the memory 602, thereby performing overall monitoring of the mobile phone. Alternatively, processor 608 may include one or more processing units; preferably, the processor 608 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 608.
The handset also includes a power supply 609 (e.g., a battery) for powering the various components, which may preferably be logically connected to the processor 608 via a power management system, such that the power management system may be used to manage charging, discharging, and power consumption.
The ultrasonic transceiver module 610 may be configured to implement an ultrasonic fingerprint identification function, and in an embodiment of the present invention, the ultrasonic transceiver module is configured to detect whether a surface of the touch screen is covered by a film body, and obtain a thickness of the film body.
Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.
In the terminal device shown in fig. 6, the processor unit 608 may call the program code stored in the memory 602 for performing the following operations:
calling an ultrasonic transceiver module 610, and sending ultrasonic waves to the direction perpendicular to the surface of the touch screen from the lower part of the touch screen to detect whether the surface of the touch screen is covered with a film body;
if the surface of the touch screen is covered by the membrane body, analyzing the echo received by the ultrasonic transceiver module 610 to obtain the thickness of the membrane body;
and adjusting the sensitivity of the touch screen to a preset sensitivity level corresponding to the thickness of the film body according to the thickness of the film body.
As an alternative implementation, the processor unit 608 calls the program code stored in the storage unit 602, and is further configured to perform the following operations:
acquiring the ambient temperature monitored by a temperature sensor in the sensor 605, and setting the sensitivity of the touch screen to a preset sensitivity level corresponding to the ambient temperature according to the ambient temperature;
the ambient humidity monitored by the humidity sensor in the sensor 605 is obtained, and the sensitivity of the touch screen is set to a preset sensitivity level corresponding to the ambient humidity according to the ambient humidity.
The terminal device shown in fig. 6 can automatically adjust the sensitivity of the touch screen to a level suitable for the influence factors according to whether the surface of the touch screen is covered with the film body, the thickness of the film body, the ambient temperature, the ambient humidity and other factors, thereby improving the user experience.
It should be noted that, in the terminal device embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the above method embodiments may be implemented by related hardware, and the corresponding program may be stored in a computer readable storage medium, where the above mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiment of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A method for adjusting the sensitivity of a touch screen is applied to terminal equipment with the touch screen, and is characterized by comprising the following steps:
sending ultrasonic waves from the lower part of the touch screen to the direction vertical to the surface of the touch screen;
receiving the echo of the ultrasonic wave, and judging whether the surface of the touch screen is covered with a film body according to the echo;
if the surface of the touch screen is covered with a film body, judging the thickness of the film body according to the echo;
and adjusting the sensitivity of the touch screen to a preset grade corresponding to the thickness of the film body according to the thickness of the film body.
2. The method of claim 1, wherein the adjusting the touch screen sensitivity to a preset level corresponding to the film thickness according to the film thickness comprises:
and setting the sensitivity of the touch screen to a preset sensitivity level corresponding to the thickness of the film body according to the thickness of the film body, wherein when the thickness of the film body is increased, the sensitivity level corresponding to the thickness of the film body is increased by at least one level.
3. The method of claim 1, wherein the receiving the echo of the ultrasonic wave and determining whether the touch screen surface is covered by the film body according to the echo comprises:
and when the equipment is started and/or awakened, receiving the echo of the ultrasonic wave, and judging whether the surface of the touch screen is covered with the membrane body or not according to the echo.
4. The method according to any one of claims 1 to 3, further comprising:
monitoring the ambient temperature;
and according to the environment temperature, setting the sensitivity of the touch screen to a preset sensitivity level corresponding to the environment temperature, wherein when the environment temperature is increased, the sensitivity level corresponding to the environment temperature is reduced by at least one level.
5. The method according to any one of claims 1 to 3, further comprising:
monitoring the environmental humidity;
and setting the sensitivity of the touch screen to a preset sensitivity level corresponding to the environment humidity according to the environment humidity, wherein when the environment humidity is increased, the sensitivity level corresponding to the environment humidity is reduced by at least one level.
6. The utility model provides an adjusting device of touch-sensitive screen sensitivity, is applied to the terminal equipment who has the touch-sensitive screen, its characterized in that includes:
the detection unit is used for detecting whether the surface of the touch screen is covered with the film body;
the thickness obtaining unit is used for obtaining the thickness of the film body when the surface of the touch screen is covered with the film body;
the first adjusting unit is used for adjusting the sensitivity of the touch screen to a preset level corresponding to the thickness of the film body according to the thickness of the film body;
the detection unit includes:
the ultrasonic wave transmitting subunit is used for transmitting ultrasonic waves from the lower part of the touch screen to the direction vertical to the surface of the touch screen;
an ultrasonic receiving subunit, configured to receive an echo of the ultrasonic wave;
the judging subunit is used for judging whether the surface of the touch screen is covered with a film body according to the echo;
the thickness obtaining unit is specifically configured to determine the thickness of the membrane body according to the echo.
7. The apparatus for adjusting sensitivity of a touch screen according to claim 6,
the first adjusting unit is specifically configured to set the sensitivity of the touch screen to a preset sensitivity level corresponding to the film thickness according to the film thickness, where when the film thickness is increased, the sensitivity level corresponding to the film thickness is increased by at least one level.
8. The apparatus for adjusting sensitivity of a touch screen according to claim 6,
the detection unit is specifically used for detecting whether the surface of the touch screen is covered with the film body or not when the touch screen is started and/or awakened.
9. The device for adjusting the sensitivity of the touch screen according to any one of claims 6 to 8, further comprising:
the temperature monitoring unit is used for monitoring the ambient temperature;
and the second adjusting unit is used for setting the sensitivity of the touch screen to a preset sensitivity level corresponding to the ambient temperature according to the ambient temperature, wherein when the ambient temperature is increased, the sensitivity level corresponding to the ambient temperature is reduced by at least one level.
10. The apparatus for adjusting sensitivity of a touch screen according to any one of claims 9, further comprising:
the humidity monitoring unit is used for monitoring the environment humidity;
and the third adjusting unit is used for setting the sensitivity of the touch screen to a preset sensitivity level corresponding to the environment humidity according to the environment humidity, wherein when the environment humidity is increased, the sensitivity level corresponding to the environment humidity is reduced by at least one level.
11. A terminal device comprising a touch screen, characterized in that the terminal device further comprises means for adjusting the sensitivity of the touch screen according to any one of claims 6 to 10.
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| CN108279805B (en) * | 2018-01-31 | 2022-03-25 | 北京小米移动软件有限公司 | Protective film detection method, device and storage medium |
| WO2020186415A1 (en) * | 2019-03-18 | 2020-09-24 | 深圳市汇顶科技股份有限公司 | Device and method for fingerprint recognition, and electronic apparatus |
| CN110399852B (en) * | 2019-07-30 | 2021-07-20 | Oppo广东移动通信有限公司 | Control method of ultrasonic module and related product |
| CN112346596B (en) * | 2020-11-04 | 2022-04-15 | 业成科技（成都）有限公司 | Ultrasonic touch device and touch calibration method |
| US20230216950A1 (en) * | 2021-12-31 | 2023-07-06 | Midas Touch Global LLC | Scratch resistant corrective smart device overlay |
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