CN114995741A - Multi-point touch method, device and system for multi-screen display - Google Patents
Multi-point touch method, device and system for multi-screen display Download PDFInfo
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- 238000004364 calculation method Methods 0.000 claims description 3
- 238000004590 computer program Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
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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
- G06F3/04886—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 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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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
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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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
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
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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 multi-point touch method, a device and a system for multi-screen display, wherein the method comprises the following steps: after a user divides a plurality of display sub-screens on a screen, calculating a boundary coordinate corresponding to each display sub-screen; when a plurality of touch coordinates of a user are obtained, determining a target display split screen corresponding to each touch coordinate respectively to obtain a plurality of target display split screens; and controlling the target display sub-screens to carry out synchronous operation according to the touch coordinates corresponding to the target display sub-screens. According to the invention, after the screen division is finished, the touch coordinates of the user on the screen can be determined, and then the multiple screen division is synchronously controlled to operate according to the touch coordinates of the user, so that the effect of multi-point touch is realized, and the utilization rate of resources is improved.
Description
Technical Field
The invention relates to the technical field of screen signal processing, in particular to a multi-point touch method, device and system for multi-screen display.
Background
The multi-screen display refers to displaying a plurality of different pictures in one display screen or displaying a plurality of different pictures in a plurality of different display screens, and displaying a spliced combined large picture so that a user can perform different operations such as development, design, editing, control and multimedia of various operation parameters.
When a user performs control operation on an individual screen, a currently common control mode is to determine a screen area clicked by the user, determine a target screen to be controlled according to the screen area, and lock the target screen for the user to perform corresponding application control.
However, the conventional control method has the following technical problems: after the target screen is locked, the user can only control the locked target screen each time, and then a plurality of non-locked screens are left vacant, which causes resource waste.
Disclosure of Invention
The invention provides a multi-point touch method, a multi-point touch device and a multi-point touch system for multi-screen display.
A first aspect of an embodiment of the present invention provides a multi-touch method for multi-screen display, where the method includes:
after a user divides a plurality of display sub-screens on a screen, calculating a boundary coordinate corresponding to each display sub-screen;
when a plurality of touch coordinates of a user are obtained, determining a target display split screen corresponding to each touch coordinate respectively to obtain a plurality of target display split screens;
and controlling the target display sub-screens to carry out synchronous operation according to the touch coordinates corresponding to the target display sub-screens.
In a possible implementation manner of the first aspect, the calculating boundary coordinates of each of the display sub-screens includes:
when a user divides a plurality of display sub-screens on a screen, acquiring the capacitance variation of a coupling capacitor clicked by the user on the screen and the electrode current values of channels at two ends of the coupling capacitor;
determining an active area touched by a user as a display split screen by using the capacitance variation;
and calculating coordinates of four vertex angles of the display sub-screen based on the electrode current value to obtain boundary coordinates corresponding to each display sub-screen.
In a possible implementation manner of the first aspect, the determining target display sub-screens corresponding to the touch coordinates respectively to obtain a plurality of target display sub-screens includes:
determining and recording a split screen area corresponding to each display split screen based on each boundary coordinate;
and determining a split screen area corresponding to each touch coordinate, and displaying the split screen by taking the display split screen corresponding to the split screen area as a target, wherein each split screen area comprises at least one touch coordinate.
A second aspect of the embodiments of the present invention provides a multi-touch device for multi-screen display, including:
the calculation module is used for calculating the boundary coordinate corresponding to each display split screen after a user divides the display split screens on the screen;
the determining module is used for determining a target display sub-screen corresponding to each touch coordinate when a plurality of touch coordinates of a user are acquired, so as to obtain a plurality of target display sub-screens;
and the control module is used for controlling the target display sub-screens to carry out synchronous operation according to the touch coordinates corresponding to each target display sub-screen.
In a possible implementation manner of the second aspect, the computing module is further configured to:
when a user divides a plurality of display sub-screens on a screen, acquiring the capacitance variation of a coupling capacitor clicked by the user on the screen and the electrode current values of channels at two ends of the coupling capacitor;
determining an active area touched by a user as a display split screen by using the capacitance variation;
and calculating coordinates of four vertex angles of the display sub-screen based on the electrode current value to obtain boundary coordinates corresponding to each display sub-screen.
In a possible implementation manner of the second aspect, the determining module is further configured to:
determining and recording a split screen area corresponding to each display split screen based on each boundary coordinate;
and determining a split screen area corresponding to each touch coordinate, and displaying the split screen by taking the display split screen corresponding to the split screen area as a target, wherein each split screen area comprises at least one touch coordinate.
A third aspect of an embodiment of the present invention provides a multi-touch system for multi-screen display, where the system includes:
the system is suitable for the multi-touch method for multi-screen display, and the system comprises: the touch screen comprises a main processor, a sensor unit and a touch screen which are sequentially connected.
In one possible implementation manner of the third aspect, the touch screen includes: a dielectric front panel, a driving electrode, a receiving electrode, and a driving buffer;
the driving electrode and the receiving electrode are arranged on the bottom surface of the dielectric front panel, the driving buffer is connected with the driving electrode, and the receiving electrode is connected with the main processor.
Compared with the prior art, the multi-point touch method, the multi-point touch device and the multi-point touch system for multi-screen display provided by the embodiment of the invention have the beneficial effects that: according to the invention, after the screen division is finished, the touch coordinates of the user on the screen can be determined, and then the multiple screen division is synchronously controlled to operate according to the touch coordinates of the user, so that the effect of multi-point touch is realized, and the utilization rate of resources is improved.
Drawings
Fig. 1 is a flowchart illustrating a multi-touch method for multi-screen display according to an embodiment of the invention;
FIG. 2 is a flowchart illustrating an operation of a multi-touch method for multi-screen display according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a multi-touch device for multi-display according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a multi-touch system for multi-display according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a touch screen according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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 multi-screen display refers to displaying a plurality of different pictures in one display screen or displaying a plurality of different pictures in a plurality of different display screens, and displaying a spliced combined large picture so that a user can perform different operations such as development, design, editing, control and multimedia of various operation parameters.
When a user performs control operation on an individual screen, a currently common control method is to determine a screen area clicked by the user, determine a target screen to be controlled according to the screen area, and lock the target screen for the user to perform corresponding application control.
However, the conventional control method has the following technical problems: after the target screen is locked, the user can only control the locked target screen each time, and then a plurality of non-locked screens are left vacant, which causes resource waste.
In order to solve the above problem, a multi-touch method for multi-screen display according to an embodiment of the present application will be described and explained in detail with reference to the following specific embodiments.
Referring to fig. 1, a flowchart of a multi-touch method for multi-screen display according to an embodiment of the present invention is shown.
As an example, the multi-touch method for multi-screen display may include:
and S11, after the user divides a plurality of display split screens on the screen, calculating the boundary coordinate corresponding to each display split screen.
In an embodiment, a user may perform a screen splitting operation on a screen, so that the screen may be divided into a plurality of split screens, determine a vertex of each split screen after the split screen, and then obtain coordinates of each vertex to obtain boundary coordinates.
In this embodiment, the screen may be a capacitive screen, wherein, as an example, step S11 may include the following sub-steps:
s111, when a user divides a plurality of display split screens on a screen, acquiring the capacitance variation of the coupling capacitor clicked by the user on the screen and the electrode current value of the channel at the two ends of the coupling capacitor.
In an embodiment, the mutual capacitance type capacitive screen is provided with a capacitor, and when a user presses or touches the screen, the capacitance of the coupling capacitor of the screen is changed, and the capacitance change value of the coupling capacitor at the moment can be obtained to obtain the capacitance change amount. Meanwhile, the current values of the channels on the two sides of the coupling capacitor can be obtained, and the current values of the electrodes are obtained by subtracting the two current values.
And S112, determining the active area touched by the user as a display split screen by using the capacitance variation.
In an embodiment, an area where the capacitance variation is located may be determined, the area is taken as an area of split screen, and the area is taken as a display split screen.
For example, a user clicks three positions of the screen to obtain three capacitance variations, and may use the capacitance as a center, predict the length (e.g., 3 cm or 50 pixels) as a boundary, divide an area, use the area as an active area, and use the area as a display split screen.
S113, calculating coordinates of four vertex angles of the display sub-screen based on the electrode current values to obtain boundary coordinates corresponding to each display sub-screen.
Specifically, the electrodes required by the implementation mode are rectangular frames and are distributed on 4 frames of the screen, the current is led out from 4 right-angle positions, and the coordinate positioning algorithm of the click shape is as follows:
therefore, four corner positions of the split screen position are obtained, so that the split screen is arranged in a single area, and each area is provided with a unique group of mutual capacitance modules.
S12, when multiple touch coordinates of the user are obtained, determining target display sub-screens corresponding to the touch coordinates respectively, and obtaining multiple target display sub-screens.
In one embodiment, after the split screen is completed, a user may operate one or more split screens, and multiple touch coordinates of the user acting on the screen may be acquired simultaneously. The touch coordinates are screen coordinates when the user touches the screen.
The multiple touch coordinates can be all on the same display split screen, and can be respectively touched on different display split screens, so that the display split screen corresponding to each touch coordinate can be determined, and a plurality of target display split screens can be determined.
For example, there are 4 display sub-screens, three of which are touched by the user at the same time, resulting in three target display sub-screens.
In order to accurately determine the target display split screen touched by the user, in an alternative embodiment, the step S12 may include the following sub-steps:
and S121, determining and recording a split screen area corresponding to each display split screen based on each boundary coordinate.
S122, determining a split screen area corresponding to each touch coordinate, and displaying the split screen by taking the display split screen corresponding to the split screen area as a target, wherein each split screen area comprises at least one touch coordinate.
Specifically, the area surrounded by the coordinates of the four vertex angles may be used as a split screen area, and the split screen area corresponding to the touch coordinate is determined to obtain the target display split screen corresponding to the touch coordinate.
In one embodiment, the touch coordinates may correspond to one or more touch locations.
And S13, controlling the multiple target display sub-screens to perform synchronous operation according to the touch coordinates corresponding to each target display sub-screen.
In an embodiment, after the multiple target display sub-screens are determined, each target display sub-screen can be controlled to perform synchronous operation according to options of touch coordinates or user clicks, so that a user can simultaneously control multiple screens to perform different operations, the effect of multi-screen multi-point control is achieved, and then a single screen is prevented from being locked to perform single operation.
Referring to fig. 2, an operation flowchart of a multi-touch method for multi-screen display according to an embodiment of the present invention is shown.
In a specific implementation, a user can directly perform screen splitting operation in the terminal, and after screen splitting is completed, boundary coordinates of displayed split screens can be acquired and stored in a database. And then acquiring touch coordinates of a user on the screen in real time, determining corresponding target sub-screens based on the touch coordinates, and finally synchronously controlling a plurality of target sub-screens to execute corresponding operations according to the target sub-screens corresponding to the touch coordinates, so that the effect of multi-point touch is realized.
In this embodiment, an embodiment of the present invention provides a multi-touch method for multi-screen display, which has the following beneficial effects: according to the invention, after the screen division is finished, the touch coordinates of the user on the screen can be determined, and then the multiple screen division is synchronously controlled to operate according to the touch coordinates of the user, so that the effect of multi-point touch is realized, and the utilization rate of resources is improved.
An embodiment of the invention further provides a multi-touch device for multi-screen display, and referring to fig. 3, a schematic structural diagram of the multi-touch device for multi-screen display according to the embodiment of the invention is shown.
As an example, the multi-touch device for multi-screen display may include:
the calculation module 301 is configured to calculate a boundary coordinate corresponding to each display split screen after a user divides a plurality of display split screens on a screen;
the determining module 302 is configured to determine, when multiple touch coordinates of a user are obtained, a target display split screen corresponding to each touch coordinate, so as to obtain multiple target display split screens;
and the control module 303 is configured to control the multiple target display sub-screens to perform synchronous operation according to the touch coordinate corresponding to each target display sub-screen.
Optionally, the computing module is further configured to:
when a user divides a plurality of display sub-screens on a screen, acquiring the capacitance variation of a coupling capacitor clicked by the user on the screen and the electrode current values of channels at two ends of the coupling capacitor;
determining an active area touched by a user as a display split screen by using the capacitance variation;
and calculating coordinates of four vertex angles of the display sub-screen based on the electrode current value to obtain boundary coordinates corresponding to each display sub-screen.
Optionally, the determining module is further configured to:
determining and recording a split screen area corresponding to each display split screen based on each boundary coordinate;
and determining a split screen area corresponding to each touch coordinate, and displaying the split screen by taking the display split screen corresponding to the split screen area as a target, wherein each split screen area comprises at least one touch coordinate.
An embodiment of the present invention further provides a multi-touch system for multi-screen display, and referring to fig. 4, a schematic structural diagram of the multi-touch system for multi-screen display according to the embodiment of the present invention is shown.
As an example, the multi-touch system for multi-screen display may include:
the system is suitable for the multi-touch method for multi-screen display, and the system comprises: the touch screen comprises a main processor, a sensor unit and a touch screen which are sequentially connected.
Referring to fig. 5, a schematic structural diagram of a touch screen provided in an embodiment of the present invention is shown.
In one embodiment, the touch screen includes: a dielectric front panel, a driving electrode, a receiving electrode, and a driving buffer;
the driving electrode and the receiving electrode are arranged on the bottom surface of the dielectric front panel, the driving buffer is connected with the driving electrode, and the receiving electrode is connected with the main processor.
Specifically, when a user performs a screen splitting operation, the mutual capacitance capacitive screen determines a position touched by a finger by detecting a variation of the coupling capacitance, so as to acquire four-corner coordinates of the screen splitting.
After the split screen, each split screen is an independent event, the screen remembers the boundary position of each split screen, and then the touch IC analyzes the boundary position to a specific boundary position, so that a split screen area is established, the split screen position can be determined, and the split screen is arranged in an area.
A group of mutual capacitance modules are arranged in each area, the split screen is touched at the same time, the mutual capacitance modules in each area act independently, and when a finger touches the capacitive screen, the coupling between two electrodes near a touch point is influenced, so that the capacitance between the two electrodes is changed. When the mutual capacitance is detected, the transverse electrodes sequentially send out excitation signals, and the longitudinal electrodes simultaneously receive signals, so that the capacitance value of the intersection point of the transverse electrodes and the longitudinal electrodes, namely the capacitance value of the two-dimensional plane of the whole touch screen can be obtained.
The user can touch the sub-screen simultaneously, mutual capacitance modules in each area independently act, when a human finger approaches, local capacitance is reduced, and the coordinate of each touch point can be calculated according to two-dimensional capacitance variation data of the touch screen. Therefore, even if there are a plurality of touch points on the screen, the real coordinates of each touch point can be calculated.
And determining the screen selected by the user based on the touched coordinates, and further controlling the selected screen to perform corresponding operation.
Referring to fig. 5, after the user touches the screen, a coupling capacitor is formed between the finger of the user and the working surface, because the working surface is connected with a high-frequency signal, the current respectively flows out from the points on the four corners of each module in a concentrated manner due to the electric field of the human body, so that a very small current is absorbed by the finger, and the touch IC can acquire two-bit capacitance variation data of the touch screen according to the capacitance of each contact of the X-channel electrode and the Y-channel electrode.
According to the two-dimensional capacitance variation data of the touch screen, ghost points and effective contacts are judged in real time according to the capacitance sensing quantity of each contact in the touch data, and the position of a touch point is obtained by the controller through the proportion of the distance from the current to a dead angle through the current flowing out of the X channel electrode and the Y channel electrode.
It can be clearly understood by those skilled in the art that, for convenience and brevity, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
Further, an embodiment of the present application further provides an electronic device, including: the multi-touch display device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the multi-touch method for multi-screen display according to the embodiment.
Further, an embodiment of the present application further provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions are configured to enable a computer to execute the multi-touch method for multi-screen display according to the foregoing embodiment.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A multi-touch method for multi-screen display, the method comprising:
after a user divides a plurality of display sub-screens on a screen, calculating a boundary coordinate corresponding to each display sub-screen;
when a plurality of touch coordinates of a user are obtained, determining a target display split screen corresponding to each touch coordinate respectively to obtain a plurality of target display split screens;
and controlling the target display sub-screens to carry out synchronous operation according to the touch coordinates corresponding to the target display sub-screens.
2. A multi-touch method for multi-screen display according to claim 1, wherein the calculating boundary coordinates of each of the display sub-screens includes:
when a user divides a plurality of display sub-screens on a screen, acquiring the capacitance variation of a coupling capacitor clicked by the user on the screen and the electrode current values of channels at two ends of the coupling capacitor;
determining an active area touched by a user as a display split screen by using the capacitance variation;
and calculating coordinates of four vertex angles of the display sub-screen based on the electrode current value to obtain a boundary coordinate corresponding to each display sub-screen.
3. A multi-touch method for multi-screen display according to claim 1, wherein the determining a target display split screen corresponding to each of the touch coordinates to obtain a plurality of target display split screens comprises:
determining and recording a split screen area corresponding to each display split screen based on each boundary coordinate;
and determining a split screen area corresponding to each touch coordinate, and displaying the split screen by taking the display split screen corresponding to the split screen area as a target, wherein each split screen area comprises at least one touch coordinate.
4. A multi-touch device for multi-screen display, the device comprising:
the calculation module is used for calculating the boundary coordinate corresponding to each display split screen after a user divides the display split screens on the screen;
the determining module is used for determining a target display sub-screen corresponding to each touch coordinate when a plurality of touch coordinates of a user are obtained, so as to obtain a plurality of target display sub-screens;
and the control module is used for controlling the target display sub-screens to carry out synchronous operation according to the touch coordinates corresponding to each target display sub-screen.
5. A multi-touch device for multi-screen display according to claim 4, wherein the computing module is further configured to:
when a user divides a plurality of display sub-screens on a screen, acquiring the capacitance variation of a coupling capacitor clicked by the user on the screen and the electrode current values of channels at two ends of the coupling capacitor;
determining an active area touched by a user as a display split screen by using the capacitance variation;
and calculating coordinates of four vertex angles of the display sub-screen based on the electrode current value to obtain boundary coordinates corresponding to each display sub-screen.
6. A multi-touch screen display device as recited in claim 4, wherein the determining module is further configured to:
determining and recording a split screen area corresponding to each display split screen based on each boundary coordinate;
and determining a split screen area corresponding to each touch coordinate, and displaying the split screen by taking the display split screen corresponding to the split screen area as a target, wherein each split screen area comprises at least one touch coordinate.
7. A multi-touch system for multi-screen display, the system being suitable for the multi-touch method for multi-screen display according to any one of claims 1 to 3, the system comprising: the touch screen comprises a main processor, a sensor unit and a touch screen which are sequentially connected.
8. A multi-touch system for a multi-display according to claim 7, wherein the touch screen comprises: a dielectric front panel, a driving electrode, a receiving electrode, and a driving buffer;
the driving electrode and the receiving electrode are arranged on the bottom surface of the dielectric front panel, the driving buffer is connected with the driving electrode, and the receiving electrode is connected with the main processor.
9. An electronic device, comprising: the multi-touch display system comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor executes the program to realize the multi-touch method for multi-screen display according to any one of claims 1 to 3.
10. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the multi-touch method for multi-screen display according to any one of claims 1-3.
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| CN115937861A (en) * | 2022-11-30 | 2023-04-07 | 广州市保伦电子有限公司 | Multi-person synchronous writing recognition method and system based on touch screen |
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| CN115937861B (en) * | 2022-11-30 | 2023-09-08 | 广东保伦电子股份有限公司 | Multi-user synchronous writing identification method and system based on touch screen |
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