CN111273845A - Screen-off control method and device and touch display device - Google Patents
Screen-off control method and device and touch display device Download PDFInfo
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- CN111273845A CN111273845A CN201910167302.0A CN201910167302A CN111273845A CN 111273845 A CN111273845 A CN 111273845A CN 201910167302 A CN201910167302 A CN 201910167302A CN 111273845 A CN111273845 A CN 111273845A
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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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/048—Indexing scheme relating to G06F3/048
- G06F2203/04808—Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
Abstract
The invention discloses a screen-off control method and device and a touch display device, wherein the screen-off control method is applied to the touch display device and comprises the following steps: step S1: acquiring touch data; step S2: acquiring the number information of the simultaneously touched touch points and the simultaneous touch duration information of the simultaneously touched touch points according to the touch data; step S3: and judging whether the number of the simultaneously touched touch points meets a first preset condition or not and whether the simultaneous touch duration of the simultaneously touched touch points meets a second preset condition or not, and if so, turning off the screen. According to the screen-off control method provided by the invention, the number of the touch points simultaneously touched by the user and the simultaneous touch duration of the touch points simultaneously touched by the user are detected, and whether the screen is off is determined according to the detection result, so that a special entity key or a remote control device is not required, the convenience of user operation and control can be further improved, and the user experience can be improved.
Description
Technical Field
The invention relates to the technical field of intelligent control, in particular to a screen-off control method and device and a touch display device.
Background
With the development of electronic technology, more and more electronic devices are developing towards the trend of intellectualization, for example, in order to give better experience to users, the current interactive display screen also has a single listening function, and when the interactive display screen is switched to the single listening mode, only sound is played and no picture is displayed (i.e. screen is turned off).
However, in the prior art, the user must control the interactive display screen to enter the separate listening mode through the physical keys on the interactive display screen or the remote controller, thereby causing a problem of poor user experience.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for controlling screen blanking and a touch display apparatus, which are beneficial to improving user experience.
In order to achieve the above object, the present invention provides a method for controlling screen-off, which is applied to a touch display device, the method comprising:
step S1: acquiring touch data;
step S2: acquiring the number information of the simultaneously touched touch points and the simultaneous touch duration information of the simultaneously touched touch points according to the touch data;
step S3: and judging whether the number of the simultaneously touched touch points meets a first preset condition or not and whether the simultaneous touch duration of the simultaneously touched touch points meets a second preset condition or not, and if so, turning off the screen.
Further, in step S3, the first preset condition includes: whether the number of simultaneously touched touch points is greater than or equal to a first threshold; and/or the second preset condition comprises: whether a simultaneous touch duration of the simultaneously touched touch points is greater than or equal to a fourth threshold.
Further, step S2 includes obtaining information of the distance between different touch points touched simultaneously and/or information of the position change of each touch point touched simultaneously within the time of the simultaneous touch;
step S3 further includes determining whether the distance information between the different touch points touched simultaneously and/or the position change information of the touch points touched simultaneously within the simultaneous touch time is within a predetermined threshold range, where, when the number of the touch points touched simultaneously is greater than or equal to the first threshold, if the distance between every two touch points touched simultaneously is not greater than the second threshold and/or the position change of the touch points touched simultaneously within the simultaneous touch time is not greater than the third threshold, and the time duration of the simultaneous touch of the touch points touched simultaneously is greater than or equal to the fourth threshold, the screen is turned off.
Further, in step S3, when the number of simultaneously touched touch points is greater than or equal to the first threshold, it is first determined whether the distance between every two simultaneously touched touch points is not greater than the second threshold, if so, it is then determined whether the position change of the simultaneously touched touch points within the simultaneous touch time is not greater than the third threshold, if so, it is then determined whether the simultaneous touch duration of the simultaneously touched touch points is greater than or equal to the fourth threshold, and if so, the screen is turned off.
Further, the first threshold is 3-5, preferably 3; and/or the fourth threshold is 1-3s, preferably 2 s.
Further, the second threshold is 200-400 pixels, preferably 250 pixels; and/or the third threshold is 10-50 pixels, preferably 15 pixels.
In order to achieve the above object, the present invention further provides a touch display device, which includes a touch display screen, a processor, and a memory coupled to the processor, where the processor is configured to execute instructions in the memory, so as to implement the screen-off control method.
Furthermore, the touch display device further comprises a mainboard and a power panel for supplying power to the mainboard and the touch display screen, wherein the processor and the memory are mounted on the mainboard, the mainboard is also provided with a wiring terminal connected with the power panel, and the wiring terminal comprises a screen control pin connected with the processor;
when the screen turn-off condition is met, the processor controls the screen turn-off control pin to be at a first level, so that the power panel closes the backlight of the touch display screen, and the screen turn-off is realized.
Further, the touch display device is an interactive display screen or an interactive smart tablet.
In order to achieve the above object, the present invention further provides a screen-out control device, applied to a touch display device, including:
the acquisition module is used for acquiring touch data;
the processing module is used for acquiring the number information of the simultaneously touched touch points and the simultaneous touch duration information of the simultaneously touched touch points according to the touch data;
the judging module is used for judging whether the number of the simultaneously touched touch points meets a first preset condition or not and whether the simultaneous touch duration of the simultaneously touched touch points meets a second preset condition or not;
and the control module is used for controlling whether to turn off the screen according to the judgment result of the judgment module, and if the first preset condition and the second preset condition are both met, the screen is turned off.
Further, the first preset condition includes: whether the number of simultaneously touched touch points is greater than or equal to a first threshold; and/or the second preset condition comprises: whether a simultaneous touch duration of the simultaneously touched touch points is greater than or equal to a fourth threshold.
Further, the processing module is further configured to obtain distance information between different touch points that are touched simultaneously and/or position change information of each touch point that is touched simultaneously within a simultaneous touch time;
the judging module is further used for judging whether the distance information between different simultaneously touched touch points and/or the position change information of each simultaneously touched touch point in the simultaneous touch time is within a preset threshold range;
and under the condition that the number of the simultaneously touched touch points is greater than or equal to a first threshold, if the distance between every two simultaneously touched touch points is not greater than a second threshold and/or the position change of each simultaneously touched touch point in the simultaneous touch time is not greater than a third threshold, and the simultaneous touch time duration of the simultaneously touched touch points is greater than or equal to a fourth threshold, the control module controls the screen to be turned off.
Further, the judging module is configured to, under the condition that the number of the simultaneously touched touch points is greater than or equal to a first threshold, firstly judge whether a distance between every two simultaneously touched touch points is not greater than a second threshold, if so, judge whether a position change of each simultaneously touched touch point within the simultaneous touch time is not greater than a third threshold, if so, judge whether a simultaneous touch duration of the simultaneously touched touch points is greater than or equal to a fourth threshold, and if so, control the screen to be turned off.
According to the screen-off control method provided by the invention, the number of the touch points simultaneously touched by the user and the simultaneous touch duration of the touch points simultaneously touched by the user are detected, and whether the screen is off is determined according to the detection result, so that a special entity key or a remote control device is not required, the convenience of user operation and control can be further improved, and the user experience can be improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a flowchart of a screen-off control method according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method for controlling turn-off of the screen according to an embodiment of the present invention;
fig. 3 is a flowchart of another screen-off control method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a connection terminal provided by an embodiment of the invention.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the nature of the present invention, well-known methods, procedures, and components have not been described in detail.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1, fig. 1 is a flowchart of a screen turn-off control method provided in an embodiment of the present invention, where the method may be applied to a touch display device, for example, the touch display device may be an interactive display screen, and the method includes:
step S1: acquiring touch data;
for example, the touch display device may include a touch display screen having a multi-touch function, and the touch display screen detects a touch behavior of a user and outputs a coordinate position of each detected touch point when the user touches the touch display screen;
step S2: acquiring the number information of the simultaneously touched touch points and the simultaneous touch duration information of the simultaneously touched touch points according to the touch data;
step S3: and judging whether the number of the simultaneously touched touch points meets a first preset condition or not and whether the simultaneous touch duration of the simultaneously touched touch points meets a second preset condition or not, if so, turning off the screen (namely, entering a screen off state from a screen display state or continuously keeping the screen off state), and if not, keeping or entering the screen display.
According to the screen-off control method provided by the embodiment of the invention, the number of the touch points touched by the user at the same time and the simultaneous touch duration of the touch points touched by the user at the same time are detected, and whether the screen is off is determined according to the detection result, so that a special entity key or a remote control device is not required, the convenience of user operation and control can be further improved, and the user experience can be improved.
For example, in one embodiment, the blanking includes entering a listen-alone mode (i.e., playing only sound without displaying a picture), and the holding or entering a screen display includes exiting the listen-alone mode;
for example, the touch display screen in the touch display device may include a liquid crystal display screen, and the touch display device may be controlled to turn off or display the screen by controlling the backlight of the liquid crystal display screen, so as to enter or exit the listening-alone mode.
For example, if the current touch display device is not in the single listening mode (i.e. the touch display device is in the screen display state), in step S3, if the number of simultaneously touched touch points is determined to meet the first preset condition and the simultaneous touch duration of the simultaneously touched touch points meets the second preset condition, the backlight in the touch display screen of the touch display device is turned off and the touch display device is turned off, so as to control the touch display device to enter the single listening mode, otherwise, the touch display device still maintains the screen display state, if the current touch display device is in the single listening mode (i.e. the touch display device is in the screen off state), in step S3, if the number of simultaneously touched touch points is determined to meet the first preset condition and the simultaneous touch duration of the simultaneously touched touch points meets the second preset condition, the touch display device still maintains the screen off state, otherwise, the backlight in the touch display screen of the touch display device is turned on, so that the touch display device enters a screen display state, and the touch display device is controlled to exit the single listening mode.
In addition, in the embodiment of the present invention, when the touch display device is in the listen-alone mode (i.e., the touch display device is in the off-screen state), the determination of whether to exit the listen-alone mode may also be performed in other manners, for example, when any touch gesture is detected, the listen-alone mode is exited, and in addition, the determination condition for determining whether to exit the listen-alone mode may also be the same as the determination condition for determining whether to enter the listen-alone mode when the touch display device is not in the listen-alone mode.
For example, in one embodiment, the first preset condition includes: whether the number of simultaneously touched touch points is greater than or equal to a first threshold; and/or the second preset condition comprises: whether the simultaneous touch time period of the simultaneously touched touch points is greater than or equal to a fourth threshold, for example, the first threshold may be 3 to 5, preferably 3, and the fourth threshold may be 1 to 3s, preferably 2 s.
Referring to fig. 2, fig. 2 is a flowchart of another screen turn-off control method provided by an embodiment of the present invention, where the method may be applied to a touch display device, for example, the touch display device may be an interactive display screen, and the method includes:
step S101: acquiring touch data;
step S102: acquiring the number information of the simultaneously touched touch points, the simultaneous touch duration information of the simultaneously touched touch points, the distance information between the simultaneously touched different touch points and the position change information of the simultaneously touched touch points in the simultaneous touch time according to the touch data;
step S103: judging whether the number of the simultaneously touched touch points is larger than or equal to a first threshold value, whether the simultaneous touch duration of the simultaneously touched touch points is larger than or equal to a fourth threshold value, and whether the distance information between the simultaneously touched different touch points and the position change information of the simultaneously touched touch points in the simultaneous touch time are in a preset threshold value range;
under the condition that the number of the simultaneously touched touch points is larger than or equal to a first threshold, if the distance between every two simultaneously touched touch points is not larger than a second threshold, the position change of the simultaneously touched touch points in the simultaneous touch time is not larger than a third threshold, and the simultaneous touch time length of the simultaneously touched touch points is larger than or equal to a fourth threshold, turning off the screen, otherwise, keeping or entering the screen display;
specifically, in this step, under the condition that the number of simultaneously touched touch points is greater than or equal to a first threshold, it may be determined first whether a distance between every two simultaneously touched touch points is not greater than a second threshold, if so, it may be determined whether a change in position of each simultaneously touched touch point within a simultaneous touch time is not greater than a third threshold, if so, it may be determined whether a simultaneous touch duration of the simultaneously touched touch points is greater than or equal to a fourth threshold, if so, the screen may be turned off, otherwise, the screen display may be maintained or entered;
for example, in the present embodiment, the first threshold may be 3 to 5, preferably 3; the fourth threshold may be 1-3s, preferably 2 s; the second threshold may be 200-400 pixels, preferably 250 pixels; the third threshold may be 10-50 pixels, preferably 15 pixels.
In the embodiment of the present invention, the turning off the screen includes entering a single listening mode (i.e., only playing sound without displaying a picture), and the maintaining or entering the screen display includes exiting the single listening mode;
for example, when the touch display device plays an audio file or a video file, and when the user does not need to view the picture displayed by the touch display device, the user can turn off the backlight in the touch display screen of the touch display device through gestures, and the touch display device turns off the screen and still plays sound, so that the touch display device is controlled to enter a separate listening mode to save energy consumption;
specifically, in this embodiment, when the touch display device plays an audio file or a video file, if the touch display device is not in the single listening mode (that is, the touch display device is in the screen display state), in step S103, if it is determined that the number of simultaneously touched touch points is greater than or equal to the first threshold, and the distance between every two simultaneously touched touch points is not greater than the second threshold, and the change in the position of each simultaneously touched touch point within the simultaneous touch time is not greater than the third threshold, and the simultaneous touch duration of the simultaneously touched touch points is greater than or equal to the fourth threshold, the backlight in the touch display screen of the touch display device is turned off, but still plays sound, so as to control the touch display device to enter the single listening mode, otherwise, the touch display device still maintains the screen display state;
if the current touch display device is in the single listening mode (i.e., the touch display device is in the screen-off state), in step S103, if it is determined that the number of simultaneously touched touch points is greater than or equal to the first threshold, and the distance between every two simultaneously touched touch points is not greater than the second threshold, and the change of the position of each simultaneously touched touch point within the simultaneous touch time is not greater than the third threshold, and the simultaneous touch duration of the simultaneously touched touch points is greater than or equal to the fourth threshold, the touch display device still maintains the screen-off state, and plays sound, otherwise, the backlight in the touch display screen of the touch display device is turned on, so that the touch display device enters the screen display state, and the touch display device is controlled to exit the single listening mode.
For example, referring to fig. 3, the screen-off control method in the embodiment of the present invention may specifically include:
step A: when the touch display device is in a screen display state, the touch display device acquires touch data;
for example, the touch display screen in the touch display device may include an infrared touch screen supporting multi-point touch, and the touch position of the user is scanned in an infrared manner, the coordinate position of each touch point is determined, and then the determined coordinate position is output in a USB manner;
for example, a touch display screen in the touch display device may also adopt a capacitive touch screen supporting multi-point touch, detect a touch position of a user through capacitance change on the capacitive touch screen, determine a coordinate position of each touch point, and output the determined coordinate position in a USB manner;
and B: judging whether the number of touch points touched simultaneously (namely the number of touch points in multi-point touch) is 3 (namely whether the number of touch points is 3) or not according to the touch data, if so, executing the step C, and if not, executing the step A;
and C: judging whether the distance between every two touch points in the 3-point touch is not greater than 250 pixels in the touch display screen, if so, executing the step D, and if not, executing the step A;
step D: judging whether the position change of each touch point in the 3-point touch within the simultaneous touch time is not more than 15 pixels in the touch display screen, if so, executing the step E, and if not, executing the step A;
step E: judging whether the simultaneous touch time of the 3-point touch (namely the simultaneous touch staying time of the 3 touch points) is not less than 2 seconds, if so, executing the step F, and if not, executing the step A;
step F: if the gesture recognition is successful, the touch display device enters an independent listening mode;
for example, in the embodiment of the present invention, the touch display device may adopt an android operating system, and after the gesture recognition is determined to be successful, the touch display device executes an individual listening function through a corresponding android application program, for example, when the control chip determines that the gesture recognition is successful, the control chip outputs a corresponding control signal to a power panel of the electronic device, so that the power panel stops outputting the working voltage to the backlight, thereby turning off the backlight output of the touch display device.
According to the screen-off control method provided by the embodiment of the invention, a user can more conveniently and quickly enable the touch display device to enter or exit the independent listening function, so that unnecessary electric loss of a display screen of the electronic equipment can be effectively saved, and the energy-saving function is realized.
The embodiment of the invention also provides a touch display device, which comprises a touch display screen, a processor and a memory coupled with the processor, wherein the processor is used for executing instructions in the memory to realize the method.
In an embodiment, the touch display device further includes a motherboard and a power board for supplying power to the motherboard and the touch display screen, wherein the processor and the memory are mounted on the motherboard, the motherboard is further provided with a connection terminal connected to the power board, and the connection terminal includes a screen control pin connected to the processor;
the processor controls the information screen control pin to be a first level, so that the power panel closes the backlight of the touch display screen, and the screen is turned off;
for example, the connection terminal can be as shown in fig. 4, wherein the connection terminal J1 includes 14 pins, wherein the 13 th pin is used as a rest screen control pin, the 13 th pin is grounded via a resistor R3 (e.g., 10K Ω in size), and is connected to the power board via a resistor R4 (e.g., 100 Ω in size) to output a rest screen control signal (VBL _ CTRL) to the power board, when the processor (i.e., the main chip) performs the listen-alone function, the 13 th pin is pulled down to a low level (i.e., VBL _ CTRL is a low level signal), the power board recognizes that the pin is a low level, the power supply to the backlight of the touch display screen is stopped, the touch display screen has no backlight output, the listen-alone function is implemented, when the processor (i.e., the main chip) performs the listen-alone function, the 13 th pin is pulled up to a high level (i.e., VBL _ CTRL is a high level signal), the power board recognizes that the pin is a high, starting to supply power to the backlight of the touch display screen, and enabling the touch display screen to enter a screen display to quit the independent listening function;
in addition, the 1 st pin, the 2 nd pin, the 7 th pin, the 8 th pin and the 11 th pin of the connection terminal J1 are grounded, the 3 rd pin and the 4 th pin of the connection terminal J1 are grounded through the filter capacitor CT1(100UF/16V), the 5 th pin of the connection terminal J1 is connected with one end of a resistor R2 (e.g., 100 Ω), the other end of a resistor R2 is connected with one end of a resistor R1 (e.g., 4.7K Ω), and outputs a power-ON or standby signal (i.e., PWR-ON/OFF) of the touch display device to the power panel, and the 14 th pin is connected with the power panel through a resistor R5 (e.g., 1K Ω) to output a screen brightness adjustment signal (BRI _ ADJ) to the power panel;
when the touch display device is started, the power panel provides 5V voltage (5V _ Nomal) to the mainboard through the 3 rd pin and the 4 th pin, 12V voltage (12V _ Nomal) is provided for the mainboard through a 9 th pin and a 10 th pin, 18V voltage (used for power amplification) is provided for the mainboard through a 12 th pin, when the touch display device is in Standby state, the power supply board stops supplying power to the pins, no matter the touch display device is started or in Standby state, the power supply board provides 5V voltage (5V- _ Standby) to the mainboard through the 6 th pin, the mainboard outputs a starting or Standby signal to the power supply board through the 5 th pin of the connection terminal J1, therefore, the touch display device is controlled to be started or standby, the mainboard outputs a brightness adjusting signal to the power panel through the 14 th pin of the connecting terminal J1, and the power panel adjusts the brightness of the touch display screen according to the brightness adjusting signal.
Optionally, the 6 th pin of the connection terminal J1 is grounded through a filter capacitor CT21(100UF/16V), the 9 th pin and the 10 th pin are grounded through a filter capacitor CT19(100UF/16V), the 9 th pin and the 10 th pin are grounded through a filter capacitor CT20, the 14 th pin is grounded through a filter capacitor C7, the 14 th pin is further connected to an ESD device (electrostatic discharge device) D1, the 13 th pin is further connected to an ESD device (electrostatic discharge device) D2, and the 5 th pin is further connected to an ESD device (electrostatic discharge device) D3.
In one embodiment, the touch display device is an interactive display screen or an interactive smart tablet.
The embodiment of the invention also provides a screen turn-off control device, which is applied to a touch display device and comprises:
the acquisition module is used for acquiring touch data;
the processing module is used for acquiring the number information of the simultaneously touched touch points and the simultaneous touch duration information of the simultaneously touched touch points according to the touch data;
the judging module is used for judging whether the number of the simultaneously touched touch points meets a first preset condition or not and whether the simultaneous touch duration of the simultaneously touched touch points meets a second preset condition or not;
and the control module is used for controlling the screen to be turned off according to the judgment result of the judgment module, if the first preset condition and the second preset condition are both met, the screen is turned off, and if not, the screen display is kept or entered.
In one embodiment, the first preset condition includes: whether the number of simultaneously touched touch points is greater than or equal to a first threshold; and/or the second preset condition comprises: whether a simultaneous touch duration of the simultaneously touched touch points is greater than or equal to a fourth threshold.
In an embodiment, the processing module is further configured to obtain distance information between different touch points that are touched simultaneously and/or position change information of each touch point that is touched simultaneously within a simultaneous touch time;
the judging module is further used for judging whether the distance information between different simultaneously touched touch points and/or the position change information of each simultaneously touched touch point in the simultaneous touch time is within a preset threshold range;
and under the condition that the number of the simultaneously touched touch points is greater than or equal to a first threshold, if the distance between every two simultaneously touched touch points is not greater than a second threshold and/or the position change of each simultaneously touched touch point in the simultaneous touch time is not greater than a third threshold, and the simultaneous touch time length of the simultaneously touched touch points is greater than or equal to a fourth threshold, the control module controls the screen to be turned off, otherwise, the screen display is kept or entered.
In an embodiment, the determining module is configured to, when the number of simultaneously touched touch points is greater than or equal to a first threshold, first determine whether a distance between every two simultaneously touched touch points is not greater than a second threshold, if so, determine whether a position change of each simultaneously touched touch point within a simultaneous touch time is not greater than a third threshold, if so, determine whether a simultaneous touch duration of the simultaneously touched touch points is greater than or equal to a fourth threshold, if so, the control module controls to turn off the screen, otherwise, the control module keeps or enters the screen display.
Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.
Claims (13)
1. A screen-off control method is applied to a touch display device and is characterized by comprising the following steps:
step S1: acquiring touch data;
step S2: acquiring the number information of the simultaneously touched touch points and the simultaneous touch duration information of the simultaneously touched touch points according to the touch data;
step S3: and judging whether the number of the simultaneously touched touch points meets a first preset condition or not and whether the simultaneous touch duration of the simultaneously touched touch points meets a second preset condition or not, and if so, turning off the screen.
2. The method according to claim 1, wherein in step S3, the first preset condition comprises: whether the number of simultaneously touched touch points is greater than or equal to a first threshold; and/or the second preset condition comprises: whether a simultaneous touch duration of the simultaneously touched touch points is greater than or equal to a fourth threshold.
3. The method according to claim 2, wherein step S2 further comprises obtaining information of the distance between different touch points touched simultaneously and/or information of the position change of each touch point touched simultaneously within the time of the simultaneous touch;
step S3 further includes determining whether the distance information between the different touch points touched simultaneously and/or the position change information of the touch points touched simultaneously within the simultaneous touch time is within a predetermined threshold range, where, when the number of the touch points touched simultaneously is greater than or equal to the first threshold, if the distance between every two touch points touched simultaneously is not greater than the second threshold and/or the position change of the touch points touched simultaneously within the simultaneous touch time is not greater than the third threshold, and the time duration of the simultaneous touch of the touch points touched simultaneously is greater than or equal to the fourth threshold, the screen is turned off.
4. The method according to claim 3, wherein in step S3, in case that the number of touch points touched simultaneously is greater than or equal to a first threshold, it is first determined whether the distance between every two touch points touched simultaneously is not greater than a second threshold, if yes, it is then determined whether the position change of each touch point touched simultaneously within the simultaneous touch time is not greater than a third threshold, if yes, it is then determined whether the duration of the simultaneous touch of the touch points touched simultaneously is greater than or equal to a fourth threshold, and if yes, the screen is turned off.
5. The method according to any of claims 2-4, wherein the first threshold value is 3-5, preferably 3; and/or the fourth threshold is 1-3s, preferably 2 s.
6. The method according to claim 3 or 4, wherein the second threshold is 200-400 pixels, preferably 250 pixels; and/or the third threshold is 10-50 pixels, preferably 15 pixels.
7. A touch display device comprising a touch display screen, a processor and a memory coupled to the processor, wherein the processor is configured to execute instructions in the memory to implement the method of any of claims 1-6.
8. The touch display device of claim 7, further comprising a motherboard and a power board for supplying power to the motherboard and the touch display screen, wherein the processor and the memory are mounted on the motherboard, the motherboard is further provided with a connection terminal connected to the power board, and the connection terminal comprises a screen control pin connected to the processor;
when the screen turn-off condition is met, the processor controls the screen turn-off control pin to be at a first level, so that the power panel closes the backlight of the touch display screen, and the screen turn-off is realized.
9. The touch display device of claim 7 or 8, wherein the touch display device is an interactive display screen or an interactive smart tablet.
10. A screen-off control device applied to a touch display device, comprising:
the acquisition module is used for acquiring touch data;
the processing module is used for acquiring the number information of the simultaneously touched touch points and the simultaneous touch duration information of the simultaneously touched touch points according to the touch data;
the judging module is used for judging whether the number of the simultaneously touched touch points meets a first preset condition or not and whether the simultaneous touch duration of the simultaneously touched touch points meets a second preset condition or not;
and the control module is used for controlling whether to turn off the screen according to the judgment result of the judgment module, and if the first preset condition and the second preset condition are both met, the screen is turned off.
11. The apparatus of claim 10, wherein the first preset condition comprises: whether the number of simultaneously touched touch points is greater than or equal to a first threshold; and/or the second preset condition comprises: whether a simultaneous touch duration of the simultaneously touched touch points is greater than or equal to a fourth threshold.
12. The device according to claim 11, wherein the processing module is further configured to obtain information about a distance between different touch points touched simultaneously and/or information about a change in position of each touch point touched simultaneously within a time of the simultaneous touch;
the judging module is further used for judging whether the distance information between different simultaneously touched touch points and/or the position change information of each simultaneously touched touch point in the simultaneous touch time is within a preset threshold range;
and under the condition that the number of the simultaneously touched touch points is greater than or equal to a first threshold, if the distance between every two simultaneously touched touch points is not greater than a second threshold and/or the position change of each simultaneously touched touch point in the simultaneous touch time is not greater than a third threshold, and the simultaneous touch time duration of the simultaneously touched touch points is greater than or equal to a fourth threshold, the control module controls the screen to be turned off.
13. The apparatus according to claim 12, wherein the determining module is configured to, in a case that the number of the touch points touched at the same time is greater than or equal to a first threshold, first determine whether a distance between every two touch points touched at the same time is not greater than a second threshold, if so, determine whether a position change of each touch point touched at the same time within the time of the touch is not greater than a third threshold, if so, determine whether a time duration of the touch at the same time of the touch points touched at the same time is greater than or equal to a fourth threshold, and if so, the control module controls to turn off the screen.
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| CN201910167302.0A CN111273845A (en) | 2019-03-06 | 2019-03-06 | Screen-off control method and device and touch display device |
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| CN201910167302.0A CN111273845A (en) | 2019-03-06 | 2019-03-06 | Screen-off control method and device and touch display device |
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