CN107390949B - Method and device for acquiring reference data of touch screen, storage medium and touch display system - Google Patents
Method and device for acquiring reference data of touch screen, storage medium and touch display system Download PDFInfo
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- CN107390949B CN107390949B CN201710825972.8A CN201710825972A CN107390949B CN 107390949 B CN107390949 B CN 107390949B CN 201710825972 A CN201710825972 A CN 201710825972A CN 107390949 B CN107390949 B CN 107390949B
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
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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
- G06F3/01—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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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Abstract
The invention discloses a method and a device for acquiring reference data of a touch screen, a storage medium and a touch display system, wherein the method is executed by the display system comprising the display screen and the touch screen, and specifically comprises the following steps: responding to the received power-on request, controlling the display screen to start working and starting timing; when the timing value reaches a timing threshold value, controlling the touch screen to start working; and acquiring reference data from the touch screen so as to calibrate the touch signal received from the touch screen according to the reference data. By adopting the embodiment of the invention, the calibration of the touch screen signal is optimized, the interference of the starting work of the display screen in the starting process is avoided, and the working stability of the touch screen system is improved.
Description
Technical Field
The invention relates to the technical field of touch screens, in particular to a method and a device for acquiring reference data of a touch screen, a storage medium and a touch display system.
Background
Currently, a commonly used smart tablet can be roughly classified into an infrared screen smart tablet and a capacitive screen smart tablet according to a touch type. An Infrared Screen (Infrared Touch Screen Technology) is composed of a Touch Screen and Infrared emitting and receiving sensing elements mounted on the outer frame of the Touch Screen, the Infrared emitting and receiving sensing elements form an Infrared detection network on the Screen surface, and any Touch object can change the Infrared on the Touch points to realize the operation of the Touch Screen. The capacitive screen works by using the current induction of a human body. The infrared touch screen has the advantages of low price, no current, voltage and static interference, suitability for severe environmental conditions, low resolution and increase of the thickness of the whole machine due to the addition of the outer frame. The capacitive screen has the advantages that writing experience is smooth, resolution ratio is high, and the whole capacitive screen is light and thin, but the capacitive screen has the defect that drifting is easily generated due to interference of an external environment, and therefore inaccurate touch or incapability of touch writing is caused. For example, when the ambient temperature and humidity change, the capacitive screen may drift, resulting in inaccurate touch control. The drift reason of the capacitive screen belongs to inherent defects in the technology, and the environmental potential surface (including the body of a user) is far away from the capacitive touch screen but is much larger than the area of the finger, and the factors directly influence the determination of the touch position.
Disclosure of Invention
The inventor finds that in the field of capacitive interactive intelligent panels and conference panels, a common touch screen can be connected to a complete machine through a USB (universal serial bus), and a complete machine system controls the touch screen to perform normal display work, but after the USB of the touch screen is connected with the complete machine, the complete machine system can immediately perform a normal working state, and cannot correct signals once after the complete machine is started, so that in the subsequent working process of the complete machine, interference is caused to signals sent by the touch screen in the starting processes of backlight switch control, L CD starting, backlight lighting and the like, so that reference signals acquired by the touch screen are unstable, the working of the touch screen is abnormal after the complete machine is started, for example, touch failure and performance degradation are caused, and disordered reporting points are easy to occur, for example, the touch function is disordered, and the problems of automatically executing touch instructions of abnormal operation are caused.
Therefore, the method and the device for acquiring the reference data of the touch screen, the storage medium and the touch display system provided by the embodiment of the invention can avoid the interference of the start-up work of the display screen in the starting-up process, so that the reference data acquired from the touch screen is more stable, and the working stability of the touch screen system is further improved.
In a first aspect, an embodiment of the present invention provides a method for obtaining reference data of a touch screen, where the method is executed by a display system including a display screen and the touch screen, and specifically includes:
responding to the received power-on request, controlling the display screen to start working and starting timing; wherein, the display screen starting operation process comprises a backlight starting process;
when the timing value reaches a timing threshold value, controlling the touch screen to start working;
and acquiring reference data from the touch screen so as to calibrate the touch signal received from the touch screen according to the reference data.
Further, when the timing value reaches the timing threshold, the touch screen is controlled to start working, specifically:
and when the timing value reaches the timing threshold value, controlling a power supply switch unit to supply power to a control unit of the touch screen so as to start the touch screen to work.
Further, the touch screen includes a first touch screen and a second touch screen, and reference data is acquired from the touch screen to calibrate a touch signal received from the touch screen according to the reference data, specifically:
judging whether the first touch screen and the second touch screen are started completely;
if so, controlling the control unit of the first touch screen to acquire reference data from the first touch screen so that the control unit of the first touch screen calibrates the touch signal received from the first touch screen according to the reference data acquired from the first touch screen; and controlling the control unit of the second touch screen to acquire reference data from the second touch screen so that the control unit of the second touch screen calibrates the touch signal received by the second touch screen according to the reference data acquired from the second touch screen.
Preferably, the first touch screen is a capacitive screen, and the second touch screen is an electromagnetic screen.
Preferably, the timing threshold is 30 seconds.
In a second aspect, an embodiment of the present invention provides an apparatus for obtaining reference data of a touch screen, which is disposed inside a main control unit of a display system including the touch screen and the display screen, and specifically includes:
the display starting control module is used for responding to the received starting power-on request, controlling the display screen to start working and starting timing; wherein, the display screen starting operation process comprises a backlight starting process;
the touch start control module is used for controlling the power supply start work of the touch screen when the timing value reaches a timing threshold value;
and the reference data acquisition module is used for acquiring reference data from the touch screen so as to calibrate the touch signal received from the touch screen according to the reference data.
Further, the touch start control module is specifically configured to control the power supply switch unit to supply power to the control unit of the touch screen when the timing value reaches the timing threshold value, so as to start the touch screen to work.
Further, the touch screen includes a first touch screen and a second touch screen, and the reference data acquisition module specifically includes:
the work judging unit is used for judging whether the first touch screen and the second touch screen are started to finish work or not;
the acquisition control unit is used for controlling the control unit of the first touch screen to acquire reference data from the first touch screen if the touch signal is received, so that the control unit of the first touch screen calibrates the touch signal received from the first touch screen according to the reference data acquired from the first touch screen; and controlling the control unit of the second touch screen to acquire reference data from the second touch screen so that the control unit of the second touch screen calibrates the touch signal received by the second touch screen according to the reference data acquired from the second touch screen.
Preferably, the first touch screen is a capacitive screen, and the second touch screen is an electromagnetic screen.
Preferably, the timing threshold is 30 seconds.
In a third aspect, an embodiment of the present invention provides a storage medium, where a plurality of instructions are stored, and when executed by a processor, the method for acquiring reference data of a touch screen according to the first aspect is implemented.
In a fourth aspect, an embodiment of the present invention provides a touch screen system, which includes a touch screen, a display screen, a storage device, and a processor, where the processor implements the method for obtaining reference data of the touch screen provided in the first aspect when executing a plurality of instructions in the storage device.
The embodiment of the invention has the following beneficial effects:
according to the method and the device for acquiring the reference data of the touch screen, the storage medium and the touch display system provided by the embodiment of the invention, when a power-on request for starting is received, the display screen is firstly controlled to start working and start timing, and when a timing value reaches a timing threshold value, the touch screen is controlled to start working; therefore, the delayed power-on starting of the touch screen is achieved, interference in the starting process is avoided, reference data obtained by starting work of the touch screen is not interfered by the starting process, the stability of the reference data is improved, calibration on signals received from the touch screen is more accurate according to the reference data, and the working stability of the touch display system is improved.
Drawings
FIG. 1 is a schematic flow chart diagram illustrating an embodiment of a method for obtaining reference data of a touch screen according to the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of an apparatus for obtaining reference data of a touch screen according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a touch display system according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of one embodiment of a power switch unit of the touch display system provided by the present invention;
fig. 5 is a schematic structural diagram of another embodiment of a power supply switch unit of a touch display system provided in 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.
Referring to fig. 1, which is a schematic flowchart of an embodiment of a method for obtaining touch screen reference data provided by the present invention, the method for obtaining touch screen reference data provided by the embodiment of the present invention is executed by a host control unit of a display system including a display screen and a touch screen, and specifically includes steps S1 to S3:
and S1, responding to the received power-on request, controlling the display screen to start working and starting timing.
It should be noted that the power-on request should be that the user presses a button for starting the power supply to the system to supply power to the system, and then the system starts normally, including entering the operation of the operating system and starting the hardware device (starting the operation of the display screen and the touch screen), but when receiving the power supply, the host control unit controls the start operation of the display screen, for example, L CD start operation, that is, backlight start, and the delay of the start operation of the touch screen is realized by controlling the power-on delay of the touch screen by the host control unit.
And S2, when the timing value reaches the timing threshold value, controlling the touch screen to start working. In the embodiment of the present invention, the time period from the system being turned on to the display screen displaying that the operating system completely enters the main interface is 38 seconds, while the time period occupied by the inventor through the multiple time period measurement and the display screen starting operation processes of backlight switch control, backlight lighting and the like is 30 seconds, so the timing threshold is preferably set to be 30 seconds.
If the system implementing the embodiment of the present invention further includes a power supply switch unit, the specific implementation of step S2 may be: and when the timing value reaches the timing threshold value, controlling a power supply switch unit to supply power to a control unit of the touch screen so as to start the touch screen to work.
And S3, acquiring reference data from the touch screen, and calibrating the touch signal received from the touch screen according to the reference data.
As a further improvement of the embodiment of the present invention, the touch screen includes a first touch screen and a second touch screen, preferably, the first touch screen is a capacitive screen, and an electromagnetic screen of the second touch screen can simultaneously implement the operation of the electromagnetic pen on the touch screen and the operation on the touch screen without the electromagnetic pen, and as the control unit of the first touch screen and the control unit of the second touch screen are further included in the system of the embodiment of the present invention, the specific implementation process of the step S3 is as follows:
judging whether the first touch screen and the second touch screen are started completely;
if so, controlling the control unit of the first touch screen to acquire reference data from the first touch screen so that the control unit of the first touch screen calibrates the touch signal received from the first touch screen according to the reference data acquired from the first touch screen; and controlling the control unit of the second touch screen to acquire reference data from the second touch screen so that the control unit of the second touch screen calibrates the touch signal received by the second touch screen according to the reference data acquired from the second touch screen.
It should be noted that, the signal calibrated by the control unit of the first touch screen and the signal calibrated by the control unit of the second touch screen are both transmitted to the host control unit of the system to be controlled and displayed on the display screen.
According to the method for acquiring the reference data of the touch screen, provided by the embodiment of the invention, when a starting-up power-on request is received, the display screen is controlled to start working and start timing, and when a timing value reaches a timing threshold value, the touch screen is controlled to start working; therefore, the delayed power-on starting of the touch screen is achieved, interference in the starting process is avoided, reference data obtained by starting work of the touch screen is not interfered by the starting process, the stability of the reference data is improved, calibration on signals received from the touch screen is more accurate according to the reference data, and the working stability of the touch display system is improved.
Fig. 2 is a schematic structural diagram of an embodiment of an apparatus for acquiring reference data of a touch screen according to an embodiment of the present invention; the embodiment of the invention provides a device for acquiring reference data of a touch screen, which is arranged in a main control unit of a display system comprising the display screen and the touch screen, is a soft system and specifically comprises the following components:
the display starting control module 10 is used for responding to the received starting power-on request, controlling the display screen to start working and starting timing;
the touch start control module 20 is used for controlling the power supply start work of the touch screen when the timing value reaches the timing threshold;
and the reference data acquisition module 30 is configured to acquire reference data from the touch screen, so as to calibrate the touch signal received from the touch screen according to the reference data.
Further, the touch start control module 10 is specifically configured to, when the timing value reaches the timing threshold, control the power supply switch unit to supply power to the control unit of the touch screen, so as to start the touch screen to work.
Further, the touch screen includes a first touch screen and a second touch screen, and the reference data obtaining module 30 specifically includes:
the work judging unit is used for judging whether the first touch screen and the second touch screen are started to finish work or not;
the acquisition control unit is used for controlling the control unit of the first touch screen to acquire reference data from the first touch screen if the touch signal is received, so that the control unit of the first touch screen calibrates the touch signal received from the first touch screen according to the reference data acquired from the first touch screen; and controlling the control unit of the second touch screen to acquire reference data from the second touch screen so that the control unit of the second touch screen calibrates the touch signal received by the second touch screen according to the reference data acquired from the second touch screen.
Preferably, the first touch screen is a capacitive screen, and the second touch screen is an electromagnetic screen.
Preferably, the timing threshold is 30 seconds.
Further, an embodiment of the present invention provides a storage medium, where a plurality of instructions are stored, and the instructions, when executed by a processor, implement the method for acquiring reference data of a touch screen according to the first aspect.
Further, an embodiment of the present invention provides a touch screen system, which includes a touch screen, a display screen, a storage device, and a processor, where the processor implements the method for obtaining reference data of the touch screen provided in the first aspect when executing a plurality of instructions in the storage device.
The embodiment of the invention has the following beneficial effects:
according to the device, the storage medium and the touch display system for acquiring the reference data of the touch screen, provided by the embodiment of the invention, when a power-on request of starting is received, the display screen is controlled to start working and start timing, and when a timing value reaches a timing threshold value, the touch screen is controlled to start working; therefore, the delayed power-on starting of the touch screen is achieved, interference in the starting process is avoided, reference data obtained by starting work of the touch screen is not interfered by the starting process, the stability of the reference data is improved, calibration on signals received from the touch screen is more accurate according to the reference data, and the working stability of the touch display system is improved.
Fig. 3 is a schematic structural diagram of an embodiment of a touch display system provided by the present invention; the invention provides a touch display system, which comprises: a host control unit 100, a power supply switch unit 102, and a touch screen control unit 103.
The host control unit 100 is configured to control the display screen 104 to start working and start timing when it is detected that power is supplied to the host control unit 100 from the power source 101, generate a power supply switch signal when a timing value reaches a timing threshold value, and output the power supply switch signal to the power supply switch unit 102, where when power is supplied to the host control unit 100, an operator of a system presses a power key to power on the entire system at this time, then the host control unit 100 controls the display screen 104, such as L CD, to start working, that is, backlight starting at this time.
The power supply switch unit 102 is configured to output, to the touch screen control unit 103, a current that is input to the host control unit 100 for power supply when receiving the power supply switch signal. As can be seen from the foregoing, the power supply switch unit 102 will turn on the switch after about 30 seconds of starting up, so that the system power supply supplies power to the touch screen control unit 103, and the whole touch screen 105 starts to operate.
The touch screen control unit 103 is configured to start the operation of the touch screen 105 when receiving a power supply input, and establish a communication connection with the host control unit 100. Since the touch screen control unit 103 needs to be controlled by the main control unit to transmit signals with the main control unit, the touch screen control unit 103 needs to establish a communication connection with the host control unit 100, wherein the communication connection is preferably a USB (Universal Serial Bus) connection. In the embodiment of the present invention, the touch screen 105 is preferably a capacitive touch screen 105.
The host control unit 100 is further configured to generate a calibration signal after detecting that the touch screen control unit 103 establishes a communication connection with the host control unit 100, and output the calibration signal to the touch screen control unit 103 through the communication connection.
The touch screen control unit 103 is configured to obtain reference data from the touch screen 105 when receiving the calibration signal, so as to calibrate the signal received from the touch screen 105 according to the reference data.
Further, when the touch screen 105 includes a first touch screen and a second touch screen, the touch screen control unit includes a first touch screen control unit and a second touch screen control unit, and the first touch screen control unit is configured to obtain reference data from the first touch screen when receiving the calibration signal, so that the control unit of the first touch screen calibrates the touch signal received from the first touch screen according to the reference data obtained from the first touch screen; and the second touch screen control unit is used for acquiring reference data from the second touch screen when receiving the calibration signal, so that the control unit of the second touch screen calibrates the touch signal received by the second touch screen according to the reference data acquired from the second touch screen.
It should be noted that after the touch screen control unit 103 establishes a communication connection with the host control unit 100, the subsequent reference data acquisition and calibration operations do not need to be changed, and only the time difference between the power-on of the host control unit 100 and the power-on of the capacitive screen needs to be separated, so as to adjust the time difference between the operation of the display screen 104 and the operation of the capacitive screen, and avoid the interference of the power-on of the display screen 104 on the reference data acquisition.
Fig. 4 is a schematic structural diagram of an embodiment of a power supply switch unit of a touch display system provided by the present invention;
the power supply switch unit 102 includes a first switch tube Q1, a first resistor R1 and a second switch tube Q2, it should be noted that a port for power supply input to the host control unit 100 is a first power input terminal 5V-M, the host control unit 100 outputs the power supply switch signal to the port of the power supply switch unit 102 is a power supply switch control terminal CT L1, a port provided by the power supply switch unit and butted with the power supply switch control terminal CT L1 is a power supply switch controlled terminal CT L2, and the power supply switch unit 102 further includes a power output terminal 5V-TOUCH and a second power input terminal, and then the connection relationship of the power supply switch unit 102 is as follows:
the control end of the first switch tube Q1 is connected with the power supply switch controlled end CT L, the input end of the first switch tube Q1 is connected with the first power supply input end 5V-M through the first resistor R1, the output end of the first switch tube Q1 is grounded, the input end of the first switch tube Q1 is further connected with the control end of the second switch tube Q2, the input end of the second switch tube Q2 is connected with the first power supply input end 5V-M of the power supply switch unit, the first power supply input end 5V-M is connected with the first power supply input end 5V-M, the output end of the second switch tube Q2 is connected with the power supply output end of the power supply switch unit, and therefore connection with the third power supply input end 5V-TOUCH of the TOUCH screen control unit 103 is achieved.
Preferably, the first switch tube Q1 is an NPN type triode, the control terminal of the first switch tube Q1 is a base of the NPN type triode, the input terminal of the first switch tube Q1 is a collector of the NPN type triode, and the output terminal of the first switch tube Q1 is an emitter of the NPN type triode. And the second switch tube Q2 is a P-type MOS transistor, the control end of the second switch tube Q2 is the gate of the P-type MOS transistor, the input end of the second switch tube Q2 is the source of the P-type MOS transistor, and the output end of the second switch tube Q2 is the drain of the P-type MOS transistor.
The signal transmission process of the power supply switch unit 102 is as follows:
the control end of the first switch tube Q1 receives the power supply switch signal, and turns on the first switch tube Q1 when receiving the power supply switch signal; the input end of the first switch tube Q1 receives the current supplied to the host control unit 100 by the first resistor R1 when the first switch tube Q1 is turned on, and the output end of the first switch tube Q1 is grounded; the input end of the first switch transistor Q1 is connected to the control end of the second switch transistor Q2, and when the first switch transistor Q1 is turned on, a low level is provided to the control end of the second switch transistor Q2, so that the second switch transistor Q2 is turned on; the input end of the second switch tube Q2 receives the current supplied to the host control unit 100, and the output end of the second switch tube Q2 outputs the current supplied to the host control unit 100 when the second switch tube Q2 is turned on; thereby providing current to the touch screen control unit 103 to power up and cause the touch screen 105 to start operating.
Fig. 5 is a schematic structural diagram of another embodiment of the power supply switch unit 102 of the touch display system provided in the present invention; the power supply switch unit 102 provided in this embodiment further includes a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first capacitor C1, and a second capacitor C2 on the basis of the previous power supply switch unit 102;
the second resistor R2 is connected between the control end of the first switch tube Q1 and the power supply switch signal output end CT L, the third resistor R3 is connected between the control end of the first switch tube Q1 and the ground, the fourth resistor R4 is connected between the input end of the first switch tube Q1 and the control end of the second switch tube Q2, the fifth resistor R5 is connected between the power supply switch controlled end CT L2 and the first power supply input end 5V-M, the first capacitor C1 is connected between the control end of the second switch tube Q2 and the input end of the second switch tube Q2, and the second capacitor C2 is connected between the control end of the second switch tube Q2 and the output end of the second switch tube Q2.
It should be noted that the second resistor R2 and the fourth resistor R4 are provided for current limiting, the third resistor R3 is provided for providing a bias voltage to the first switch tube Q1, and the first capacitor C1 and the second capacitor C2 are provided for eliminating capacitive interference.
The embodiment of the invention has the following beneficial effects:
according to the touch display system provided by the embodiment of the invention, firstly, the main control unit normally controls the display screen to enter a starting state and start timing, when the timing threshold is reached, a power supply switch signal is provided for the power supply switch unit to be conducted, so that the touch screen control unit can be electrified to control the touch screen to start working, and therefore, the interference in the starting process is avoided by controlling the working time difference between the display screen and the touch screen, the reference data obtained by the starting work of the touch screen is not interfered by the starting process, the stability of the reference data is improved, the calibration of the signal received from the touch screen is more accurate according to the reference data, and the working stability of the touch display system is improved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a write-and-Read Memory, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
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 method for acquiring reference data of a touch screen is characterized in that the method is executed by a display system comprising the display screen and the touch screen, and specifically comprises the following steps:
responding to the received power-on request, controlling the display screen to start working and starting timing; wherein, the display screen starting operation process comprises a backlight starting process;
when the timing value reaches a timing threshold value, controlling the touch screen to start working;
and acquiring reference data from the touch screen so as to calibrate the touch signal received from the touch screen according to the reference data.
2. The method for obtaining reference data of a touch screen according to claim 1, wherein when the timing value reaches the timing threshold, the touch screen is controlled to start working, specifically:
and when the timing value reaches the timing threshold value, controlling a power supply switch unit to supply power to a control unit of the touch screen so as to start the touch screen to work.
3. The method of claim 1, wherein the touch screen comprises a first touch screen and a second touch screen, and the method further comprises obtaining reference data from the touch screen to calibrate the touch signal received from the touch screen according to the reference data, specifically:
judging whether the first touch screen and the second touch screen are started completely;
if so, controlling the control unit of the first touch screen to acquire reference data from the first touch screen so that the control unit of the first touch screen calibrates the touch signal received from the first touch screen according to the reference data acquired from the first touch screen; and controlling the control unit of the second touch screen to acquire reference data from the second touch screen so that the control unit of the second touch screen calibrates the touch signal received by the second touch screen according to the reference data acquired from the second touch screen.
4. The method of claim 3, wherein the first touch screen is a capacitive screen and the second touch screen is an electromagnetic screen.
5. The method of obtaining touch screen reference material of claim 1, wherein the timing threshold is 30 seconds.
6. The utility model provides an acquire device of touch-sensitive screen reference data which characterized in that sets up inside the main control unit who contains the display system of display screen and touch-sensitive screen, specifically includes:
the display starting control module is used for responding to the received starting power-on request, controlling the display screen to start working and starting timing; wherein, the display screen starting operation process comprises a backlight starting process;
the touch start control module is used for controlling the power supply start work of the touch screen when the timing value reaches a timing threshold value;
and the reference data acquisition module is used for acquiring reference data from the touch screen so as to calibrate the touch signal received from the touch screen according to the reference data.
7. The apparatus for obtaining reference data of a touch screen according to claim 6, wherein the touch start control module is specifically configured to control the power supply switch unit to supply power to the control unit of the touch screen when the timing value reaches the timing threshold value, so as to start the touch screen to operate.
8. The apparatus for obtaining touch screen reference data according to claim 6, wherein the touch screen includes a first touch screen and a second touch screen, and the reference data obtaining module specifically includes:
the work judging unit is used for judging whether the first touch screen and the second touch screen are started to finish work or not;
the acquisition control unit is used for controlling the control unit of the first touch screen to acquire reference data from the first touch screen if the touch signal is received, so that the control unit of the first touch screen calibrates the touch signal received from the first touch screen according to the reference data acquired from the first touch screen; the control unit for controlling the second touch screen acquires reference data from the second touch screen so that the control unit for the second touch screen calibrates the touch signal received by the second touch screen according to the reference data acquired from the second touch screen;
the first touch screen is a capacitive screen, and the second touch screen is an electromagnetic screen;
the timing threshold is 30 seconds.
9. A storage medium having stored thereon a plurality of instructions, wherein said instructions when executed by a processor implement a method of obtaining touch screen reference material according to any one of claims 1 to 5.
10. A touch display system, comprising a touch screen, a display screen, a storage device and a processor, wherein the processor implements the method for obtaining touch screen reference data according to any one of claims 1 to 5 when executing a plurality of instructions in the storage device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825972.8A CN107390949B (en) | 2017-09-13 | 2017-09-13 | Method and device for acquiring reference data of touch screen, storage medium and touch display system |
| PCT/CN2017/116308 WO2019052052A1 (en) | 2017-09-13 | 2017-12-15 | Method and device for obtaining touch screen reference data, storage medium and touch display system |
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| CN201710825972.8A CN107390949B (en) | 2017-09-13 | 2017-09-13 | Method and device for acquiring reference data of touch screen, storage medium and touch display system |
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| CN107390949B true CN107390949B (en) | 2020-08-07 |
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| CN207249643U (en) * | 2017-09-13 | 2018-04-17 | 广州视源电子科技股份有限公司 | Touch display system |
| CN107390949B (en) * | 2017-09-13 | 2020-08-07 | 广州视源电子科技股份有限公司 | Method and device for acquiring reference data of touch screen, storage medium and touch display system |
| CN108549497A (en) * | 2018-02-23 | 2018-09-18 | 广州视源电子科技股份有限公司 | Intelligent interaction device and control method thereof |
| CN109002207A (en) * | 2018-07-04 | 2018-12-14 | 深圳市文鼎创数据科技有限公司 | A kind of touch chip calibration method, electronic equipment and storage medium |
| US11334671B2 (en) * | 2019-10-14 | 2022-05-17 | International Business Machines Corporation | Adding adversarial robustness to trained machine learning models |
| CN111596802B (en) * | 2020-05-26 | 2022-12-02 | Oppo（重庆）智能科技有限公司 | Touch screen calibration method and device and computer readable storage medium |
| CN116390293B (en) * | 2023-02-09 | 2024-03-19 | 浙江柒和环境艺术设计有限公司 | Indoor illumination control system and method for building |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541382A (en) * | 2012-01-18 | 2012-07-04 | 华为终端有限公司 | Method and terminal for calibrating capacitive touch screen |
| JP2014126899A (en) * | 2012-12-25 | 2014-07-07 | Lg Display Co Ltd | Touch panel device and touch detection method for touch panel |
| CN105892629A (en) * | 2015-10-20 | 2016-08-24 | 乐视移动智能信息技术（北京）有限公司 | Multicore-based screen awakening method and device as well as mobile terminal |
| CN106293218A (en) * | 2016-08-03 | 2017-01-04 | 北京集创北方科技股份有限公司 | The awakening method of touch control display device and device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI457796B (en) * | 2011-03-31 | 2014-10-21 | Novatek Microelectronics Corp | Driving method for touch-sensing display device and touch-sensing device thereof |
| CN102591525A (en) * | 2012-01-13 | 2012-07-18 | 广州视源电子科技有限公司 | Calibration method for touch screen, touch screen system and calibration device |
| CN105302371A (en) * | 2015-11-02 | 2016-02-03 | Tcl移动通信科技（宁波）有限公司 | Method and system for controlling driver loading of touch screen of mobile terminal |
| CN207249643U (en) * | 2017-09-13 | 2018-04-17 | 广州视源电子科技股份有限公司 | Touch display system |
| CN107390949B (en) * | 2017-09-13 | 2020-08-07 | 广州视源电子科技股份有限公司 | Method and device for acquiring reference data of touch screen, storage medium and touch display system |
-
2017
- 2017-09-13 CN CN201710825972.8A patent/CN107390949B/en active Active
- 2017-12-15 WO PCT/CN2017/116308 patent/WO2019052052A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541382A (en) * | 2012-01-18 | 2012-07-04 | 华为终端有限公司 | Method and terminal for calibrating capacitive touch screen |
| JP2014126899A (en) * | 2012-12-25 | 2014-07-07 | Lg Display Co Ltd | Touch panel device and touch detection method for touch panel |
| CN105892629A (en) * | 2015-10-20 | 2016-08-24 | 乐视移动智能信息技术（北京）有限公司 | Multicore-based screen awakening method and device as well as mobile terminal |
| CN106293218A (en) * | 2016-08-03 | 2017-01-04 | 北京集创北方科技股份有限公司 | The awakening method of touch control display device and device |
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