CN105739757B - The scan method and system of touch screen, touch screen and touch panel device - Google Patents
The scan method and system of touch screen, touch screen and touch panel device Download PDFInfo
- Publication number
- CN105739757B CN105739757B CN201610037278.5A CN201610037278A CN105739757B CN 105739757 B CN105739757 B CN 105739757B CN 201610037278 A CN201610037278 A CN 201610037278A CN 105739757 B CN105739757 B CN 105739757B
- Authority
- CN
- China
- Prior art keywords
- touch
- signal
- touch screen
- scanning
- scanning signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3262—Power saving in digitizer or tablet
Abstract
This application discloses a kind of scan methods of touch screen, which comprises receives standby command in response to touch screen, each touch electrode of the touch screen is shorted, and scan the touch electrode with the first scanning signal；If detecting touch signal, the electrical connection between each touch electrode is disconnected, and each touch electrode is scanned with the second scanning signal, wherein the scan frequency of second scanning signal is greater than the scan frequency of first scanning signal.The scan method of the touch screen reduces the power consumption of touch screen.
Description
Technical field
This application involves the scan method and system of luminescence display field more particularly to a kind of touch screen, touch screen and
Touch panel device.
Background technique
Currently, touch screen technology has gradually replaced the mainstream technology for becoming mobile terminal etc. by key technology.Touch screen skill
Art is when being mounted on the touch screen of display front end according to contacts such as finger, pens, and the position (with coordinate form) touched is tested
CPU is measured and is sent to, so that it is determined that a kind of technology for the information being entered.Currently, the application range of touch screen is very wide,
Main product includes man-machine display circle of the mobile terminals such as touch-control class mobile phone, laptop and industrial automation industry
Face etc..
Existing touch screen is accurately located touch location in the state of standby, only enters partial touch electrode
Dormant state, and remainder touch electrode is scanned there is still a need for the higher scan frequency of use always, in order to detect
It whether there is touch signal on touch screen.This method causes biggish power consumption, the hair of this and the super long standby time of display equipment
Exhibition trend runs in the opposite direction.
Summary of the invention
The purpose of the application is to propose the scan method and system, touch screen and touch panel device of a kind of touch screen,
To solve the technical issues of background section above is mentioned.
In a first aspect, the embodiment of the present application provides a kind of scan method of touch screen, which comprises in response to touching
It touches screen and receives standby command, each touch electrode of the touch screen is shorted, and the touch is scanned with the first scanning signal
Electrode；If detecting touch signal, the electrical connection between each touch electrode is disconnected, and each with the scanning of the second scanning signal
The touch electrode, wherein the scan frequency of second scanning signal is greater than the scan frequency of first scanning signal.
In some embodiments, the method also includes: whether each touch electrode of detection receives touches with default
The touch signal of path matching；If detect with the default matched touch signal of touch track, with third scanning signal
Scan the touch screen；Wherein, the scan frequency of the third scanning signal is greater than the scan frequency of first scanning signal
With the scan frequency of second scanning signal.
In some embodiments, the method also includes: if being not detected and the default matched touch of touch track
Signal then scans the touch screen with first scanning signal.
In some embodiments, polarity of first scanning signal within the adjacent scan period is on the contrary, described second
Polarity of the scanning signal within the adjacent scan period is opposite.
Second aspect, the embodiment of the present application provide a kind of touch screen, including multiple touch electrodes and each touch electrode pair
Signal output line, control chip and the multiple switch answered, wherein the switch includes first end, second end and control terminal；Respectively
The touch electrode is electrically connected by the signal output line with the control chip；The first end of each switch and right therewith
The touch electrode electrical connection answered；The second end of each switch is connected with each other, and by any one signal output line with
The control chip electrical connection；The control chip to the control terminal of each switch exports control signal to control each described open
What is closed is turned on or off.
In some embodiments, the switch is metal-oxide-semiconductor, and the control terminal is the grid of the metal-oxide-semiconductor, the first end
For the first pole of the metal-oxide-semiconductor, the second end is the second pole of the metal-oxide-semiconductor；First pole of each metal-oxide-semiconductor and right therewith
The touch electrode electrical connection answered；Second pole of each metal-oxide-semiconductor is connected with each other, and by any one signal output line with
The control chip electrical connection；The grid of each metal-oxide-semiconductor is electrically connected with the control chip.
In some embodiments, the control chip is used to export control signal control to the grid of each metal-oxide-semiconductor each
Metal-oxide-semiconductor conducting so that each touch electrode by each MOS second it is extremely short connect after and any one bars
Output line electrical connection；And each metal-oxide-semiconductor shutdown of control signal control is exported to the grid of each metal-oxide-semiconductor, so that each institute
Touch electrode is stated to be electrically connected by the signal output line with the control chip.
The third aspect, the embodiment of the present application also provides a kind of scanning system of touch screen, the system comprises: first sweeps
Module is retouched, for receiving standby command in response to touch screen, each touch electrode of the touch screen is shorted, and is swept with first
Retouch touch electrode described in signal scanning；Second scan module, if disconnecting each touch electrode for detecting touch signal
Between electrical connection, and each touch electrode is scanned with the second scanning signal, wherein the scanning frequency of second scanning signal
Rate is greater than the scan frequency of first scanning signal.
In some embodiments, the system also includes detection modules, for detecting whether each touch electrode receives
To with the matched touch signal of default touch track；If detect with the default matched touch signal of touch track, with
Third scanning signal scans the touch screen；Wherein, the frequency of the third scanning signal is greater than first scanning signal
The scan frequency of scan frequency and second scanning signal.
In some embodiments, if be not detected with the default matched touch signal of touch track, with described
Scan signal scans the touch screen.
In some embodiments, polarity of first scanning signal within the adjacent scan period is on the contrary, described second
Polarity of the scanning signal within the adjacent scan period is opposite.
Fourth aspect, the embodiment of the present application also provides a kind of touch panel devices, including above-mentioned touch screen.
The scan method and system of touch screen provided by the present application, touch screen and touch panel device, touch screen are receiving
When to standby signal, each touch electrode of touch screen is shorted, and the touch electricity after being shorted with the scanning of the first scanning signal
Pole disconnects the touch electrode of short circuit if touch screen detects touch signal later, and is greater than the first scanning with scan frequency
Second scanning signal of signal scans each touch electrode, realizes and turns to the touch screen scanning signal frequency under standby mode
It changes, so as to reduce the power consumption of touch screen in the standby state.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 shows the schematic flow chart of one embodiment of the scan method of the touch screen according to the application；
Fig. 2 shows the schematic flow charts according to another embodiment of the scan method of the touch screen of the application；
Fig. 3 shows the schematic diagram of the default touch track of the touch screen according to the application；
Fig. 4 shows the structural schematic diagram of one embodiment of the touch screen according to the application；
Fig. 5 shows the structural schematic diagram for the touch screen being shorted according to the touch electrode of the application；
Fig. 6 shows the waveform diagram of the first scanning signal and the second scanning signal according to the application；
Fig. 7 shows the structural schematic diagram of one embodiment of the scanning system of the touch screen according to the application.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 shows a kind of schematic flow Figure 100 of the scan method of the touch screen according to the application.The touch
The scan method of screen, includes the following steps:
Step 101, standby command is received in response to touch screen, each touch electrode of touch screen is shorted, and with first
Scanning signal scans touch electrode.
It in the present embodiment, will be each in touch screen when above-mentioned touch screen is received into the standby command of standby mode
Touch electrode is shorted, and can realize the switching that each touch electrode is shorted and is disconnected by modes such as switches here.
Further, the touch electrode after above-mentioned short circuit is scanned with the first scanning signal.
It should be noted that a touch electrode can be considered as after each touch electrode is shorted in above-mentioned touch screen, and
Any one signal output line as the touch electrode after being shorted is chosen in the corresponding signal output line of each touch electrode of original, it will
Touch electrode is electrically connected with control chip after short circuit.Here, the first scanning signal be generally only used for judging be on above-mentioned touch screen
Not no to have touch signal, rather than judge the touch track of touch signal, therefore, the scan frequency of first scanning signal can be with
What is be arranged is extremely low, this can not only reduce the power consumption of touch screen, also further reduces the burden of control chip.
Step 102, if detecting touch signal, the electrical connection between each touch electrode is disconnected, and with the second scanning letter
Number each touch electrode of scanning.
In the present embodiment, when scanning the touch electrode after being shorted in above-mentioned touch screen with the first scanning signal, if inspection
Touch signal is measured, then shows that touch screen has received touch operation.At this time, it may be necessary to further judge touch location.Therefore,
In this step, it is disconnected by the electrical connection between each touch electrode by above-mentioned short circuit, allows each touch electrode independent
Ground receives touch signal.Further, since the scan frequency of the second scanning signal is greater than the scan frequency of above-mentioned first scanning signal,
By replacing the first scanning signal to scan each touch electrode after above-mentioned disconnection with the second scanning signal, can promptly determine
Touch location.
In some optional implementations of the present embodiment, it is shorted when being scanned in above-mentioned touch screen with the first scanning signal
When rear touch electrode, if touch signal is not detected, continue to scan the touch electricity after above-mentioned short circuit with the first scanning signal
Pole.
The scan method of touch screen provided by above-described embodiment of the application, touch screen when receiving standby signal,
Each touch electrode of touch screen is shorted, and with the touch electrode after the first scanning signal scanning short circuit, if touching later
Screen detects touch signal, then disconnects the touch electrode of short circuit, and is greater than the second of the first scanning signal with scan frequency and sweeps
Each touch electrode of signal scanning is retouched, the conversion to the touch screen scanning signal frequency under standby mode is realized, to reduce
The power consumption of touch screen in the standby state.
With continued reference to Fig. 2, it illustrates schematic flow Figure 200 of another embodiment of the scan method of touch screen.
The flow chart 200 of the scan method of the touch screen, includes the following steps:
Step 201, standby command is received in response to touch screen, each touch electrode of touch screen is shorted, and with first
Scanning signal scans touch electrode.
It in the present embodiment, will be each in touch screen when above-mentioned touch screen is received into the standby command of standby mode
Touch electrode is shorted, and can realize the switching that each touch electrode is shorted and is disconnected by modes such as switches here.
Further, the touch electrode after above-mentioned short circuit is scanned with the first scanning signal.
Step 202, if detecting touch signal, the electrical connection between each touch electrode is disconnected, and with the second scanning letter
Number each touch electrode of scanning.
In the present embodiment, when scanning the touch electrode after being shorted in above-mentioned touch screen with the first scanning signal, if inspection
Touch signal is measured, then is disconnected the electrical connection between each touch electrode of above-mentioned short circuit.Further, with the second scanning signal
Each touch electrode after scanning above-mentioned disconnection instead of the first scanning signal.Wherein, the scan frequency of the second scanning signal is greater than upper
State the scan frequency of the first scanning signal.
In some optional implementations of the present embodiment, it is shorted when being scanned in above-mentioned touch screen with the first scanning signal
When rear touch electrode, if touch signal is not detected, continue to scan the touch electricity after above-mentioned short circuit with the first scanning signal
Pole.
Step 203, detect whether each touch electrode receives and the matched touch signal of default touch track.
In the present embodiment, touch track can be preset, the matching result based on touch signal and touch track will
Above-mentioned touch screen is in working condition from standby mode transformation.When with the second scanning signal touch screen scanning, each touch electricity is detected
Whether pole receives the touch signal to match with the default touch track, matches if detecting with above-mentioned default touch track
Touch signal, then step 204 is gone to, with third scanning signal touch screen scanning, if being not detected and above-mentioned default touch rail
The matched touch signal of mark, then go to step 205, with the first scanning signal touch screen scanning.
In some optional implementations of the present embodiment, when with the second scanning signal touch screen scanning, in order to anti-
It is that user wants its switching to working condition from standby mode that only display screen, which thinks into maloperation, it can be determined that preset
With the presence or absence of the touch signal of default touch track is met in period, meet if detecting to exist within a preset time period
The touch signal of default touch track, then go to step 204, with third scanning signal touch screen scanning, if when preset
Between fail to detect to meet the touch signal of default touch track in section, or have exceeded the preset period and whether detect
It to the touch signal for meeting default touch track, then requires to go to step 205, with the first scanning signal touch screen scanning.
In some optional implementations of the present embodiment, the above-mentioned touch signal for meeting default touch track is at least wrapped
Include touch coordinate, each touch coordinate composition sequencing during touch of touch figure and each touch coordinate all with
Default touch track matches.Here, preset touch track can be flexibly arranged, for example, above-mentioned preset touch track
It can be as shown in figure 3, detect the presence of touch signal when with the first scanning signal touch screen scanning, to be then switched to second and sweep
The above-mentioned touch screen of signal scanning is retouched, disconnects the electrical connection between touch electrode, and detection is whether above-mentioned touch signal is with such as
The point 301 specified in Fig. 3 is that starting point reaches home 302 in the direction of the arrow, if it is, indicating to detect and preset touch rail
The touch signal that mark matches, if it is not, then indicating that the touch signal to match with preset touch track is not detected.
In some optional implementations of the present embodiment, the frequency of above-mentioned third scanning signal is greater than above-mentioned first and sweeps
Retouch the scan frequency of signal and the scan frequency of above-mentioned second scanning signal.Here, third scanning signal can exist for touch screen
Scanning signal under normal operating conditions.
Step 204, with third scanning signal touch screen scanning.
In the present embodiment, each touch electrode detected based on step 203 is received and the matched touching of default touch track
Signal is touched, above-mentioned touch screen is scanned with third scanning signal, so that above-mentioned touch screen enters working condition by standby mode.
Step 205, with the first scanning signal touch screen scanning.
In the present embodiment, each touch electrode detected based on step 203 does not receive matched with default touch track
Touch signal scans above-mentioned touch screen with the first scanning signal, so that above-mentioned touch screen continues to keep standby mode.
In some optional implementations of embodiment, when user is not intended to touch touch screen and make touch screen from
When scan signal is switched to the second scanning signal, can not usually it detect and the matched touch signal of default touch track
, at this moment touch screen still will scan above-mentioned touch screen with the first extremely low scanning signal of scan frequency, to reach reduction power consumption
Purpose.
The scan method of touch screen provided by above-described embodiment of the application, by being swept to the first scanning signal, second
It retouches signal and different scan frequencies is arranged in third scanning signal, then by the first scanning signal, the second scanning signal and third
Different from touch screen states are corresponding respectively for scanning signal, can farthest reduce the function of touch screen in the standby state
Consumption.
With further reference to Fig. 4, it illustrates the structural schematic diagrams 400 of one embodiment of the application touch screen.The touch
Screen 400 includes multiple touch electrodes 401, signal output line 402 corresponding with each touch electrode, controls chip 403 and multiple
Switch 404.
In the present embodiment, above-mentioned each touch electrode 401 is electrically connected by signal output line 402 with above-mentioned control chip 403
It connects.Wherein, above-mentioned switch 404 includes first end, second end and control terminal.It the first end of above-mentioned each switch 404 and is corresponding to it
Touch electrode 402 be electrically connected, the second end of above-mentioned each switch 404 is connected with each other, and by any one bars output line and
Chip 403 is controlled to be electrically connected.
In the present embodiment, above-mentioned control chip 403 exports control signal to the control terminal of each switch 404 and is respectively opened with controlling
Pass 404 is turned on or off.
In some optional implementations of the present embodiment, when above-mentioned control chip 403 receives standby command,
Sending control signal to the control terminal of above-mentioned switch 404 is connected above-mentioned each switch 404, each touch electrode on touch screen
401 are connected with each other, and are shorted into a touch electrode as shown in 501 in Fig. 5, and here, the dotted line frame in Fig. 5 indicates each touch
Electrode 401, and solid box indicates that the touch electrode 501 after being shorted, touch electrode 501 pass through any one bars output line 502
It is electrically connected with control chip 503, the electrode 501 after being then shorted with the scanning of the first scanning signal, although touch electrode 501 at this time
The coordinate of touch signal cannot be detected, but can detecte with the presence or absence of touch signal.If detecting touch signal, control
Chip 403 sends control signal to the control terminal of above-mentioned switch 404 and above-mentioned each switch 404 is disconnected, i.e., is shorted in touch screen
Touch electrode disconnect, and with the second scanning signal scanning disconnect after each touch electrode, with detect whether exist and default touching
Touch the touch signal of path matching.
It should be noted that above-mentioned control chip 403 controls the conducting and disconnection of above-mentioned switch 404 by controlling signal,
Whether each touch electrode 401 controlled in touch screen is shorted, and touches so as to be scanned when touch electrode is shorted with the first scanning signal
Screen is touched, with the second scanning signal touch screen scanning when touch electrode disconnects, above-mentioned touch screen can effectively reduce power consumption, simultaneously
The touch screen can also further reduce the burden of touch chip 403.
In some optional implementations of the present embodiment, above-mentioned switch 404 can be metal-oxide-semiconductor, and wherein control terminal can
Think the grid of above-mentioned metal-oxide-semiconductor, first end can be the first pole of above-mentioned metal-oxide-semiconductor, and second end can be the second of above-mentioned metal-oxide-semiconductor
Pole, the first pole here can be the source electrode of above-mentioned metal-oxide-semiconductor, and the second pole is that the drain electrode of the metal-oxide-semiconductor or the first pole can be
The drain electrode of above-mentioned metal-oxide-semiconductor, and the second pole is the source electrode of the metal-oxide-semiconductor；And the first pole of each metal-oxide-semiconductor and corresponding touch electricity
Pole 401 is electrically connected, and the second pole of each metal-oxide-semiconductor is connected with each other, and passes through any one bars output line 402 and control chip 403
Electrical connection, the grid of each metal-oxide-semiconductor are electrically connected with above-mentioned control chip 404.Here, above-mentioned the opening using metal-oxide-semiconductor of control chip 403
Feature is closed, the current potential by controlling the grid that signal controls each MOS makes metal-oxide-semiconductor on or off, and it is short to reach each touch electrode
The purpose for connecing or disconnecting.
In some optional implementations of the present embodiment, above-mentioned control chip 404 can be used for the grid to each metal-oxide-semiconductor
Pole output control signal controls the conducting of each metal-oxide-semiconductor so that each touch electrode 401 by each MOS second it is extremely short connect after with it is any
The electrical connection of one bars output line 402；And export control signal to the grid of each metal-oxide-semiconductor and control each metal-oxide-semiconductor shutdown, so that respectively
Touch electrode 401 is electrically connected by signal output line 402 with above-mentioned control chip 403.
In some optional implementations of the present embodiment, above-mentioned metal-oxide-semiconductor can be PMOS tube or NMOS tube, above-mentioned control
The grid that coremaking piece 403 can control metal-oxide-semiconductor is in different current potentials, so that metal-oxide-semiconductor on or off.For example, above-mentioned ought open
When pass 404 is PMOS tube, when touch screen receives standby command, the grid that above-mentioned control chip 404 controls each PMOS tube is
Low potential, so that each PMOS tube is connected, i.e., each touch electrode 401 is shorted, and with the touch after the first scanning signal scanning short circuit
Electrode；If detecting touch signal, the grid that above-mentioned control chip 403 can control each PMOS tube again is high potential, so that respectively
PMOS tube shutdown, that is, the disconnection for the touch electrode being shorted, and with each touch electrode after the scanning disconnection of the second scanning signal, with inspection
Surveying whether there is and the matched touch signal of default touch track.
In above-described embodiment of the application, control chip 403 leads on-off by control switch such as metal-oxide-semiconductor
It opens, so that each touch electrode 401 is shorted or disconnects accordingly, then uses corresponding first scanning signal or the second scanning signal
Touch screen scanning reduces the burden of control chip 403 to reduce the power consumption of touch screen.
With further reference to Fig. 6, it illustrates the waveform diagrams of the first scanning signal and the second scanning signal in above-described embodiment.
As shown, the pulse signal polarity of 602 adjacent periods of the first scanning signal 601 and the second scanning signal is opposite.
In this implementation, polarity of above-mentioned first scanning signal 601 within the adjacent scan period is on the contrary, above-mentioned
Polarity of two scanning signals 602 within the adjacent scan period is opposite.Here, any one of the first scanning signal 601 is chosen
Scan period was the first scan period, and the next cycle of first scan period was the second scan period, as shown, above-mentioned
The polarity of the scanning signal of first scan period and the second scan period is opposite；Similarly, adjacent in the second scanning signal 602
The polarity of the scanning signal of first scan period and the second scan period is also opposite.Here, by controlling the first scanning signal 601
Pulse polarity with touch electrode in the adjacent scan period of the second scanning signal 602 is on the contrary, prevent touch screen in the standby state
There is the phenomenon that liquid crystal polarization.
Above-described embodiment of the application can be adjacent by changing the first scanning signal 601 and the second scanning signal 602
Polarity in scan period solves the problems, such as to cause display screen to flash because of liquid crystal polarization.
With continued reference to Fig. 7, as the realization of the scan method to touch screen shown in above-mentioned each figure, this application provides one kind
One embodiment of the scanning system of touch screen, the system embodiment is corresponding with the embodiment of the method for above-mentioned Fig. 2, in the system
All or part of module can be applied to control chip software in.
In the present embodiment, the scanning system 700 of touch screen includes the first scan module 701 and the second scan module 702.
Wherein, the first scan module 701 is used to receive standby command in response to touch screen, and each touch electrode of touch screen is shorted,
And above-mentioned touch electrode is scanned with the first scanning signal；If the second scan module 702 disconnects each for detecting touch signal
Electrical connection between above-mentioned touch electrode, and each touch electrode is scanned with the second scanning signal, wherein the second scanning signal is swept
Retouch the scan frequency that frequency is greater than above-mentioned first scanning signal.
In some optional implementations of the present embodiment, above system 700 further includes that detection module (not shown) is used
Whether received and the matched touch signal of default touch track in each touch electrode of detection；If detecting and above-mentioned default touch
The touch signal of path matching then scans above-mentioned touch screen with third scanning signal；Wherein, the frequency of third scanning signal is greater than
The scan frequency of the scan frequency of above-mentioned first scanning signal and above-mentioned second scanning signal.
In some optional implementations of the present embodiment, if being not detected and the above-mentioned default matched touching of touch track
Signal is touched, then above-mentioned touch screen is scanned with above-mentioned first scanning signal.
In some optional implementations of the present embodiment, above-mentioned first scanning signal is within the adjacent scan period
Polarity is on the contrary, polarity of above-mentioned second scanning signal within the adjacent scan period is opposite.
It should be noted that the scanning system 700 of above-mentioned touch screen can be applied to various types of touch screen terminals, such as
Smart phone, tablet computer, electronic reader with touch function etc..The touch screen provided by the above embodiment of the application
Scanning system for different touch situations, is respectively adopted the first scanning signal or the second scanning signal is swept in the standby state
Touch screen is retouched, the power consumption of touch screen can be effectively reduced, extends the stand-by time of touch screen terminal.
It should be noted that those skilled in the art can carry out various changes and deformation without departing from this hair to the present invention
Bright range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
In addition, the embodiment of the present application also provides a kind of touch panel device, including the touch screen in above-described embodiment.The touch
The scan method touch screen of the specific structure of touch screen and touch screen is same as the previously described embodiments in screen device, no longer superfluous here
It states.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (12)
1. a kind of scan method of touch screen, which is characterized in that the described method includes:
Standby command is received in response to touch screen, each touch electrode of the touch screen is shorted, and with the first scanning signal
Scan the touch electrode；
If detecting touch signal, the electrical connection between each touch electrode is disconnected, and each with the scanning of the second scanning signal
The touch electrode, wherein the scan frequency of second scanning signal is greater than the scan frequency of first scanning signal.
2. the scan method of touch screen according to claim 1, which is characterized in that the method also includes:
Detect whether each touch electrode receives and the matched touch signal of default touch track；
If detect with the default matched touch signal of touch track, the touch screen is scanned with third scanning signal；
Wherein, the scan frequency and described second that the scan frequency of the third scanning signal is greater than first scanning signal is swept
Retouch the scan frequency of signal.
3. the scan method of touch screen according to claim 2, which is characterized in that the method also includes:
If be not detected with the default matched touch signal of touch track, the touching is scanned with first scanning signal
Touch screen.
4. the scan method of touch screen described in one of -3 according to claim 1, which is characterized in that first scanning signal exists
Polarity in the adjacent scan period is on the contrary, polarity of second scanning signal within the adjacent scan period is opposite.
5. a kind of touch screen, which is characterized in that including multiple touch electrodes, signal output line corresponding with each touch electrode, control
Coremaking piece and multiple switch, wherein the switch includes first end, second end and control terminal；
Each touch electrode is electrically connected by the signal output line with the control chip；
The first end of each switch and the electrical connection of corresponding touch electrode；
The second end of each switch is connected with each other, and is electrically connected by any one signal output line and the control chip
It connects；
The control chip exports control signal to the control terminal of each switch to control being turned on or off for each switch；
Wherein, when the control chip receives standby command, make to the control terminal of each switch transmission control signal each described
Switch conduction, each touch electrode on the touch screen are shorted；If detecting touch signal, the control chip is to each institute
The control terminal for stating switch sends control signal and each switch is disconnected, and the touch electrode being shorted in the touch screen disconnects electricity
Connection.
6. touch screen according to claim 5, which is characterized in that the switch is metal-oxide-semiconductor, and the control terminal is described
The grid of metal-oxide-semiconductor, the first end are the first pole of the metal-oxide-semiconductor, and the second end is the second pole of the metal-oxide-semiconductor；
First pole of each metal-oxide-semiconductor and the electrical connection of corresponding touch electrode；
Second pole of each metal-oxide-semiconductor is connected with each other, and passes through any one signal output line and control chip electricity
Connection；
The grid of each metal-oxide-semiconductor is electrically connected with the control chip.
7. touch screen according to claim 6, which is characterized in that the control chip is used for the grid to each metal-oxide-semiconductor
Each metal-oxide-semiconductor conducting of pole output control signal control, so that each touch electrode passes through the second pole of each metal-oxide-semiconductor
It is electrically connected after short circuit with any one bars output line；And
Each metal-oxide-semiconductor shutdown of control signal control is exported to the grid of each metal-oxide-semiconductor, so that each touch electrode passes through
The signal output line is electrically connected with the control chip.
8. a kind of scanning system of touch screen, which is characterized in that the system comprises:
Each touch electrode of the touch screen is shorted by the first scan module for receiving standby command in response to touch screen,
And the touch electrode is scanned with the first scanning signal；
Second scan module, if disconnecting the electrical connection between each touch electrode, and for detecting touch signal with
Two scanning signals scan each touch electrode, wherein the scan frequency of second scanning signal is greater than first scanning
The scan frequency of signal.
9. the scanning system of touch screen according to claim 8, which is characterized in that the system also includes:
Detection module, for detecting whether each touch electrode receives and the matched touch signal of default touch track；
If detect with the default matched touch signal of touch track, the touch screen is scanned with third scanning signal；
Wherein, the frequency of the third scanning signal is greater than the scan frequency of first scanning signal and second scanning is believed
Number scan frequency.
10. the scanning system of touch screen according to claim 9, which is characterized in that if being not detected and the default touching
The touch signal of path matching is touched, then the touch screen is scanned with first scanning signal.
11. the scanning system of the touch screen according to one of claim 8-10, which is characterized in that first scanning signal
In the polarity in the adjacent scan period on the contrary, polarity of second scanning signal within the adjacent scan period is opposite.
12. a kind of touch panel device, which is characterized in that including the touch screen as described in one of claim 5-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610037278.5A CN105739757B (en) | 2016-01-20 | 2016-01-20 | The scan method and system of touch screen, touch screen and touch panel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610037278.5A CN105739757B (en) | 2016-01-20 | 2016-01-20 | The scan method and system of touch screen, touch screen and touch panel device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105739757A CN105739757A (en) | 2016-07-06 |
| CN105739757B true CN105739757B (en) | 2019-03-22 |
Family
ID=56246377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610037278.5A Active CN105739757B (en) | 2016-01-20 | 2016-01-20 | The scan method and system of touch screen, touch screen and touch panel device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105739757B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390934B (en) * | 2017-07-28 | 2021-04-02 | 武汉天马微电子有限公司 | Display panel and display device |
| CN108227997A (en) * | 2018-01-31 | 2018-06-29 | 北京集创北方科技股份有限公司 | Gesture identification method, device and electronic equipment |
| CN108510953B (en) * | 2018-04-17 | 2021-11-26 | 厦门天马微电子有限公司 | Display panel and display device |
| CN108664163A (en) | 2018-04-26 | 2018-10-16 | 北京集创北方科技股份有限公司 | Control method and touch display system |
| CN108595063B (en) * | 2018-05-03 | 2021-06-01 | 业成科技（成都）有限公司 | Touch screen scanning method, computer device and storage medium |
| CA3113132A1 (en) | 2018-09-30 | 2020-04-02 | Huawei Technologies Co., Ltd. | Stylus detection method, system, and related apparatus |
| CN111610872B (en) * | 2019-02-26 | 2023-07-07 | 敦泰电子有限公司 | Touch control method, circuit system and touch device |
| CN109960440B (en) * | 2019-03-29 | 2023-03-07 | 京东方科技集团股份有限公司 | Touch display panel, driving method thereof and display device |
| CN112445373A (en) | 2019-09-01 | 2021-03-05 | 联咏科技股份有限公司 | Touch display driving device and operation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516596A (en) * | 2013-09-30 | 2015-04-15 | 深圳市汇顶科技股份有限公司 | Method and system for touch control device to communicate with outside device |
| CN104795042A (en) * | 2015-05-08 | 2015-07-22 | 厦门天马微电子有限公司 | Touch control driving method, system, driving module and display device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866210B (en) * | 2009-04-16 | 2012-03-21 | 群康科技(深圳)有限公司 | Power saving device and method for capacitive touch pad and capacitive touch pad |
| CN101702106B (en) * | 2009-11-04 | 2011-11-23 | 深圳市汇顶科技有限公司 | Awakening method and system for touch screen terminal |
| CN102779082B (en) * | 2012-06-18 | 2014-12-10 | 北京京东方光电科技有限公司 | Touch control detection method, touch control panel and liquid crystal display |
-
2016
- 2016-01-20 CN CN201610037278.5A patent/CN105739757B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516596A (en) * | 2013-09-30 | 2015-04-15 | 深圳市汇顶科技股份有限公司 | Method and system for touch control device to communicate with outside device |
| CN104795042A (en) * | 2015-05-08 | 2015-07-22 | 厦门天马微电子有限公司 | Touch control driving method, system, driving module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105739757A (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105739757B (en) | The scan method and system of touch screen, touch screen and touch panel device | |
| CN102281458B (en) | HDMI cable connecting arrangement and method | |
| CN105044952A (en) | Optical sensor and driving method thereof | |
| US20150015268A1 (en) | Electromagnetic input device and coil detection circuit thereof | |
| CN103092388B (en) | Touch display device | |
| CN105955524B (en) | Touch screen and its detection method, touch display unit | |
| CN104503627A (en) | Touch structure, touch display panel and touch display device | |
| CN101140366B (en) | Sensing-objects touching pixel unit, method and display apparatus thereof | |
| CN110045855A (en) | Display equipment including touch sensor | |
| CN105137783A (en) | Intelligent socket and smart home system | |
| CN105955532B (en) | Touch-control display panel and its driving circuit, electronic equipment | |
| TWI526944B (en) | Fingerprint Sensing Device and Method of Detecting Finger Touch Thereof | |
| CN108833625A (en) | sensor control circuit and electronic device | |
| CN108229395A (en) | Fingerprint recognition detection circuit and touch panel | |
| CN101900904B (en) | Panel display with touch function and touch panel | |
| CN109088961A (en) | sensor control circuit and electronic device | |
| CN103543892A (en) | Sensing circuit, touch module, electronic device and control method | |
| CN105929994B (en) | A kind of display panel and its gesture awakening method and display device | |
| CN105336273B (en) | A kind of mosaic screen | |
| CN108922471B (en) | Level conversion circuit, working method thereof and display device | |
| CN206133507U (en) | Display panel | |
| CN106371677A (en) | Method and apparatus for enhancing touch sensing in a display panel | |
| CN101149657B (en) | Systems for displaying and capturing images | |
| CN108762560A (en) | Touch panel and its control method, display device | |
| CN105045421A (en) | Touch screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |