CN107911533B - Method for realizing function keys of comprehensive under-screen mobile terminal - Google Patents

Method for realizing function keys of comprehensive under-screen mobile terminal Download PDF

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Publication number
CN107911533B
CN107911533B CN201710995822.1A CN201710995822A CN107911533B CN 107911533 B CN107911533 B CN 107911533B CN 201710995822 A CN201710995822 A CN 201710995822A CN 107911533 B CN107911533 B CN 107911533B
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pressure
key
mobile terminal
pressing
value
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CN107911533A (en
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张志义
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Chipsea Technologies Shenzhen Co Ltd
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Chipsea Technologies Shenzhen Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72466User interfaces specially adapted for cordless or mobile telephones with selection means, e.g. keys, having functions defined by the mode or the status of the device
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72469User interfaces specially adapted for cordless or mobile telephones for operating the device by selecting functions from two or more displayed items, e.g. menus or icons
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/12Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/22Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a method for realizing function keys of a full-screen mobile terminal, wherein the mobile terminal is provided with a pressure induction sensor which is positioned below a screen and is attached between a front shell and a rear shell, and the pressure induction sensor corresponds to a HOME key pressing area, a BACK key pressing area and a MENU key pressing area; when a user presses the touch screen, the pressure key driving layer of the mobile terminal reads a current touch coordinate, judges whether the coordinate is in the pressure induction key area or not, and obtains a corresponding pressure value. According to the invention, only a few appointed key areas are sensed, and the effect of returning to the desktop can be generated by pressing the HOME key area again by a user, so that the user does not need to be prompted by an upper icon of a UI (user interface), and the use is simple and convenient; only the pressure induction coefficients corresponding to the key areas are obtained during calibration, and then the relatively accurate pressure value can be obtained.

Description

Method for realizing function keys of comprehensive under-screen mobile terminal
Technical Field
The invention belongs to the technical field of mobile terminals, and particularly relates to a key detection method of a mobile terminal.
Background
With the content of the mobile phone becoming richer. Users put higher demands on the size of the mobile phone screen. The peripheral size of the cell phone has grown to 5.5 inches or even 6 inches, and the portability of the cell phone has been severely compromised by larger and larger cell phones. Many cell phone manufacturers have then proposed the concept of a full screen.
The problem with full-screen mobile phones is the lack of function keys necessary for mobile phone systems, such as BACK, HOME, MENU, which are necessary in the analog system. The existing solution is to use a virtual key, and fig. 1 is a schematic diagram of a navigation area of a conventional mobile terminal. In the figure, three icons are provided in the navigation bar, corresponding to three keys, i.e., BACK, HOME, and MENU. And drawing a display area as a navigation area in the screen, and drawing three keys in the area respectively. Although this method can solve the problem of no function key, it will result in a reduction of the effective display area of the screen. Although the navigation area can be hidden by software, the navigation area needs to be called out first when the function keys need to be used. This may increase the complexity of the user operation and seriously affect the user experience.
Patent application 201710087192.8 discloses a mobile terminal housing assembly with keys and a mobile terminal, wherein the mobile terminal housing assembly with keys comprises: a housing; the mobile terminal comprises a shell, a key touch panel and a pressure sensing element, wherein the front surface of the key touch panel is used for being pressed by a user to generate deformation, the back surface of the key touch panel is provided with the pressure sensing element, the pressure sensing element is electrically connected with a circuit board of the mobile terminal and used for detecting pressing force transmitted from the key touch panel and sending a trigger signal when the pressing force is larger than a preset value, and the circuit board is used for receiving the trigger signal and generating a corresponding control signal to control the mobile terminal. This patent application still suffers from the drawbacks described above.
Disclosure of Invention
Therefore, the invention has the primary object of providing a method for realizing the function keys of the comprehensive mobile terminal under the screen, which adopts the pressure sensing sensor to identify the keys, hides the keys below the screen, realizes the functions of the traditional entity keys while occupying no screen display area, and greatly improves the user experience.
Another objective of the present invention is to provide a method for implementing function keys of a mobile terminal under a full screen, which combines a touch screen of the mobile terminal to obtain a user pressing position through accurate coordinates, and has the advantages of simple structure, no need of an auxiliary sensor, simple implementation, and low cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a method for realizing function keys of a mobile terminal under a full screen is characterized in that the mobile terminal is provided with a pressure induction sensor which is positioned below the screen and is attached between a front shell and a rear shell, and the pressure induction sensor corresponds to a HOME key pressing area, a BACK key pressing area and a MENU key pressing area;
when a user does not press the touch screen, the pressure identification chip is in a low-power-consumption self-refreshing mode, the pressure value of the current pressure induction sensor is updated at low frequency in a timing mode, and the pressure value is cached in the chip;
when a user presses the touch screen, the pressure key driving layer of the mobile terminal reads a current touch coordinate, judges whether the coordinate is in the pressure induction key area or not, and obtains a corresponding pressure value.
The pressure induction sensor is a single-sided fit type pressure induction sensor. The front cover 203 is attached to the front cover of the mobile terminal. When the user pressed the glass apron, because the apron pressurized produces deformation, arouse LCM module and preceding shell interlock deformation. The single-sided attaching type pressure sensing sensor can sense the self curvature, convert the self curvature into an electric signal, amplify, filter and analyze the signal, and obtain the pressure value pressed by a user.
Due to the characteristics of the pressure induction sensor, the cover plate can deform when any position on the panel is pressed, so that the sensor outputs an electric signal, and the electric signal is identified as an effective key by the pressure identification chip. It is also necessary to determine whether the location pressed by the user is an active key region.
Further, the method comprises:
when the pressing area is not the effective pressure sensing key area, the pressure key driving layer does not do any operation;
when the pressing area is in the effective pressure sensing key area, the pressure key driving layer sends a pressed mark to the pressure identification chip through I2C;
and the pressure identification chip takes a level value before a certain time as a baseline value when the press mark is received, takes the difference between the current value and the baseline value as basic data, and obtains a corresponding pressure value through smooth filtering and calibration of a calibration coefficient.
Furthermore, the pressure key driving layer reads the corresponding pressure value at regular time, judges whether the pressure value is larger than the specified threshold value, and reports the pressing message of the key value of the corresponding function key through the input subsystem if the pressure value is larger than the specified threshold value. Otherwise, no processing is carried out;
when the user's hand leaves the touch panel, the pressure key driving layer clears the pressing mark to the pressure identification chip through I2C, if the pressing operation once triggers the report of the function key pressing message, the function key releases the message.
And after receiving the clear pressing mark, the pressure sensing chip enters a reduced sampling period and enters a low power consumption mode.
Furthermore, the method comprises the following specific processes:
101. pressing the touch panel with a finger;
102. the sensor module detects deformation and outputs a pressure value;
103. the mobile terminal reads the current coordinate;
104. judging whether the current coordinate is a pressure induction key area; if not, the touch operation is responded normally; if yes, carrying out the next step;
105. reading a sensor pressure value;
106. judging whether the threshold value is larger than a specified threshold value; if yes, carrying out the next step, otherwise, responding to the touch operation normally;
107. driving the linear motor to prompt the user that the function key is triggered;
108. and the driving layer directly reports the corresponding key values of the function keys to the input subsystem.
The invention only uses one pressure sensing sensor, not the whole pressure sensing screen, and is different from the existing 3D TOUCH screen. Meanwhile, only a plurality of appointed key areas are sensed, all responses are fixed by the system, and the effect of returning to the desktop can be generated by pressing the HOME key area again by a user without the need of an upper icon prompt of a UI (user interface), so that the desktop touch screen is simple and convenient to use; because only two force levels of light pressing and heavy pressing are detected, the pressing precision requirement is greatly reduced, a sensor does not need to be attached to each key sensing area, and only the pressure sensing coefficients corresponding to the key sensing areas are obtained during calibration, so that relatively accurate pressure values can be obtained.
Drawings
Fig. 1 is a schematic diagram of a navigation area of a mobile terminal implemented in the prior art.
Fig. 2 is a top view of a function key implementation device of a mobile terminal implemented by the invention.
Fig. 3 is a horizontal view of a full-scale under-screen mobile terminal function key implementation apparatus implemented in the present invention.
Fig. 4 is a flow chart of an implementation of full-scale off-screen mobile terminal function keys implemented by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 2 is a top view of a mobile terminal to which the method for implementing function keys of a full-area under-screen mobile terminal according to the present invention is applied, in which 201 is a glass cover plate of the mobile terminal, 202 is a display area of an LCD module, 203 is a pressure-sensitive sensor, and is located below a screen and is attached between a front case and a rear case, 204 is a HOME key pressing area, 205 is a BACK key pressing area, and 206 is a MENU key pressing area. In the invention, the functions of the three function keys are realized, and the space of the display area is not occupied.
Wherein 203 is a single-sided adhesive pressure-sensitive sensor, and 203 is adhered to the front shell of the mobile terminal. When the user pressed glass apron, because the apron pressurized produces deformation, caused LCD module and preceding shell linkage deformation, single face laminating formula forced induction sensor can respond to self crookedness (deformation) to convert it into the signal of telecommunication, the signal acquisition processing chip who adopts again enlargies the signal, and the filtering is analyzed (signal acquisition processing chip is prior art, no longer gives unnecessary details here), obtains the pressure value that the user pressed.
Referring to fig. 3, fig. 3 is a schematic horizontal cross-sectional view of a mobile terminal under a full screen, in which 301 is a glass cover plate of the mobile terminal, 302 is an LCD display module, 303 is a front case of the mobile terminal, 304 is a rear case of the mobile terminal, 305 is a pressure-sensitive sensor, 306 is a BACK function key pressing region, 307 is a HOME function key pressing region, and 308 is a MENU function key pressing region. The sensor is attached to the front shell of the mobile terminal. And is connected with the special chip through the FPC.
Due to the characteristics of the pressure induction sensor, the cover plate can deform at any position on the pressing panel, so that the sensor outputs an electric signal. And then recognized as a valid key by the pressure recognition chip. It is also necessary to determine whether the location pressed by the user is an active key region.
In order not to increase the number of sensors or increase the complexity of the hardware structure. The invention prevents the false triggering of the key through the touch screen of the mobile phone.
The key judgment and identification process comprises the following steps:
a) when the user does not press the touch screen, the pressure identification chip is in a low-power-consumption self-refresh mode. And updating the pressure value of the current pressure induction sensor at low frequency and caching the pressure value in the chip.
b) When a user presses the touch screen, the pressure key driving layer of the mobile terminal reads a current touch coordinate and judges whether the coordinate is in the pressure induction key area.
c) When the pressing area is not the effective pressure sensing key area, the pressure key driving layer does not do any operation.
d) When the pressing area is in the effective pressure sensing key area, the pressure key driving layer sends the pressed mark to the pressure identification chip through I2C.
e) And the pressure identification chip takes a level value before a certain time as a baseline value when the press mark is received, takes the difference between the current value and the baseline value as basic data, and obtains a corresponding pressure value through smooth filtering and calibration of a calibration coefficient.
f) And the pressure key driving layer reads the corresponding pressure value at regular time, judges whether the pressure value is greater than a specified threshold value, and reports the pressing message of the key value of the corresponding function key through the input subsystem if the pressure value is greater than the specified threshold value. Otherwise, no processing is performed.
g) When the user's hand leaves the touch panel, the pressure key driving layer clears the pressure mark to the pressure recognition chip through I2C. And if the press operation once triggers the report of the press message of the function key, the function key releases the message.
h) And after receiving the clear pressing mark, the pressure sensing chip enters a reduced sampling period and enters a low power consumption mode.
Fig. 4 is a detailed flow description of the implementation of the function keys of the mobile terminal under the full screen, and the detailed flow is as follows:
101. pressing the touch panel with a finger;
102. the sensor module detects deformation and outputs a pressure value;
103. the mobile terminal reads the current coordinate;
104. judging whether the current coordinate is a pressure induction key area; if not, the touch operation is responded normally; if yes, carrying out the next step;
105. reading a sensor pressure value;
106. judging whether the threshold value is larger than a specified threshold value; if yes, carrying out the next step, otherwise, responding to the touch operation normally;
107. driving the linear motor to prompt the user that the function key is triggered;
108. and the driving layer directly reports the corresponding key values of the function keys to the input subsystem.
Therefore, the present invention uses only one pressure-sensitive sensor, not the entire pressure-sensitive screen, unlike the existing 3D TOUCH screen. Meanwhile, when a user presses different icons in the 3D TOUCH screen again, the generated functions are determined by each application. The user does not know which feedback will be generated by a re-press by himself. Only a few designated key areas are sensed in the device, and all responses are fixed by the system. The user pressing the HOME keypad again may create a return to the desktop effect. Without being prompted by the upper icon of the UI. The use is simple and convenient. Because only two force levels of light pressing and heavy pressing are detected, the pressing precision requirement is greatly reduced, a sensor does not need to be attached to each key sensing area, and only the pressure sensing coefficients corresponding to the key sensing areas are obtained during calibration, so that relatively accurate pressure values can be obtained.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. A method for realizing function keys of a mobile terminal under a full screen is characterized in that the mobile terminal is provided with a pressure induction sensor which is positioned below the screen and is attached between a front shell and a rear shell, and the pressure induction sensor corresponds to a HOME key pressing area, a BACK key pressing area and a MENU key pressing area;
the key judgment and identification process based on the method for realizing the function keys of the mobile terminal under the full screen is as follows:
when a user does not press the touch screen, the pressure identification chip is in a low-power-consumption self-refreshing mode, the pressure value of the current pressure induction sensor is updated at low frequency in a timing mode, and the pressure value is cached in the chip;
when a user presses the touch screen, the pressure key driving layer of the mobile terminal reads a current touch coordinate, judges whether the coordinate is in the pressure induction key area or not, and obtains a corresponding pressure value.
2. The method of claim 1, wherein the pressure-sensitive sensor is a single-sided bonded pressure-sensitive sensor.
3. The full on-screen mobile terminal function key implementation method of claim 2, further comprising:
when the pressing area is not the effective pressure sensing key area, the pressure key driving layer does not do any operation;
when the pressing area is in the effective pressure sensing key area, the pressure key driving layer sends a pressed mark to the pressure identification chip through I2C;
and the pressure identification chip takes a level value before a certain time as a baseline value when the press mark is received, takes the difference between the current value and the baseline value as basic data, and obtains a corresponding pressure value through smooth filtering and calibration of a calibration coefficient.
4. The method for implementing the function keys of the full-screen mobile terminal according to claim 3, wherein the pressure key driving layer reads the corresponding pressure value at regular time, judges whether the pressure value is greater than a specified threshold value, if so, the pressing message of the key value of the corresponding function key is reported through the input subsystem, otherwise, the processing is not performed;
when the user's hand leaves the touch panel, the pressure key driving layer clears the pressing mark to the pressure identification chip through I2C, if the pressing operation once triggers the report of the function key pressing message, the function key releases the message;
and after receiving the clear pressing mark, the pressure sensing chip enters a reduced sampling period and enters a low power consumption mode.
5. The method for implementing full-screen function keys of a mobile terminal according to claim 4, wherein the method comprises the following specific steps:
101. pressing the touch panel with a finger;
102. the sensor module detects deformation and outputs a pressure value;
103. the mobile terminal reads the current coordinate;
104. judging whether the current coordinate is a pressure induction key area; if not, the touch operation is responded normally; if yes, carrying out the next step;
105. reading a pressure value of the pressure induction sensor;
106. judging whether the threshold value is larger than a specified threshold value; if yes, carrying out the next step, otherwise, responding to the touch operation normally;
107. driving the linear motor to prompt the user that the function key is triggered;
108. and the driving layer directly reports the corresponding key values of the function keys to the input subsystem.
CN201710995822.1A 2017-10-23 2017-10-23 Method for realizing function keys of comprehensive under-screen mobile terminal Active CN107911533B (en)

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CN109375830A (en) * 2018-12-24 2019-02-22 深圳市中擎创科技有限公司 A kind of electronic product method of toch control
CN111147062B (en) * 2020-01-19 2023-03-14 芯海科技(深圳)股份有限公司 Pressure sensor module, pressure detection device and terminal equipment
CN113542500B (en) * 2021-07-16 2022-05-10 南昌黑鲨科技有限公司 Pressure control system, method and computer readable storage medium
CN113970988A (en) * 2021-09-07 2022-01-25 惠州Tcl移动通信有限公司 Glass cover plate, screen module, mobile terminal and processing method of screen module

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CN102402320B (en) * 2010-09-10 2014-04-09 中国移动通信有限公司 Control method for handheld terminal and handheld terminal
CN102664983B (en) * 2012-04-23 2017-02-08 中兴通讯股份有限公司 Method and device for implementation of one touch dial
CN105404423B (en) * 2015-11-19 2018-08-14 惠州Tcl移动通信有限公司 Touch control display device and its pressure sensitive touch control method
CN106406496A (en) * 2016-09-05 2017-02-15 芯海科技(深圳)股份有限公司 Low power consumption control method for pressure-sensitive key identification device
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