CN109254678A - Embedded touch device and its aqueous mode detection method - Google Patents
Embedded touch device and its aqueous mode detection method Download PDFInfo
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- CN109254678A CN109254678A CN201710573137.XA CN201710573137A CN109254678A CN 109254678 A CN109254678 A CN 109254678A CN 201710573137 A CN201710573137 A CN 201710573137A CN 109254678 A CN109254678 A CN 109254678A
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- touch control
- control detection
- touch
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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
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Electronic Switches (AREA)
Abstract
A kind of aqueous mode detection method includes: each standard scan period in multiple standard scan periods, executes standard touch control detection to each touch control detection cell group in multiple touch control detection cell groups and operates to obtain the first testing result.In the illusory scan period, illusory touch control detection is executed to the first touch control detection group in touch control detection cell group to operate to obtain the second testing result, and in the operation of illusory touch control detection, the common voltages of the second touch control detection groups in multiple not scanned touch control detection cell groups is set to referring to ground voltage.According to the first testing result and the second testing result to generate aqueous mode testing result.
Description
Technical field
The present invention relates to a kind of embedded touch device, and in particular to a kind of water mould suitable for embedded touch device
Formula detection method.
Background technique
In order to provide convenient man-machine interface, the consumer electronic product for having the touch panel of combining display panel is wide
General application.In this regard, proposing embedded touch control panel and external hanging touch panel in the prior art.
In existing technical field, under the operation of standard touch control detection, if only water contacts embedded touch control panel,
The embedded touch control panel can ignore the influence of water, still, if touch medium (such as: the finger of user) by water come
When contacting in-building type touch panel, touch panel can sense biggish touch area.It note that and led in existing technology
In domain, embedded touch control panel provides the anti-palm and touches (palm rejection) function, and by anti-palm touch function so that above-mentioned
The touch-control state of large area is blocked.Also that is, being unable to satisfy makes if the version operation of embedded touch face is in water detection pattern
The demand of user.
Summary of the invention
The present invention provides a kind of for the embedded touch device of detection touch point in aqueous mode and its aqueous mode detection
Method.
Aqueous mode detection method of the invention, comprising: each standard scan period in multiple standard scan periods, right
Each touch control detection cell group in multiple touch control detection cell groups executes standard touch control detection and operates to obtain the first inspection
Survey result.In the illusory scan period, illusory touch-control is executed to the first touch control detection group in touch control detection cell group and is examined
Operation is surveyed to obtain the second testing result.In the operation of illusory touch control detection, multiple not scanned touch control detection one-element groups are set
The common voltage of the second touch control detection group in group is to referring to ground voltage.According to the first testing result and the second testing result
To generate aqueous mode testing result.
Embedded touch device of the invention, comprising: touch panel, touch control detection device, common voltage power supply unit and control
Device processed.Touch panel has multiple touch control detection cell groups.Touch control detection device is coupled to touch control detection cell group, touch-control inspection
Device is surveyed to each standard scan period in multiple standard scan periods, to each touch-control in touch control detection cell group
Detection unit group executes the operation of standard touch control detection to obtain the first testing result.In the illusory scan period, touch-control is examined
The the first touch control detection group surveyed in cell group executes illusory touch control detection and operates to obtain the second testing result.Common voltage
Power supply unit is coupled to touch control detection cell group, and in the operation of illusory touch control detection, sets multiple not scanned touch control detections
The common voltage of second touch control detection group of cell group is to referring to ground voltage.Controller is coupled to touch control detection device and public affairs
Common voltage power supply unit to receive the first testing result and the second testing result, and is tied according to the first testing result and the second detection
Fruit is to generate aqueous mode testing result.
Based on above-mentioned, the present invention executes standard touching in multiple standard scan periods, to multiple touch control detection cell groups
Control detection operation is to obtain the first testing result, and in the illusory scan period, executes illusory touch control detection operation to obtain the
Two testing results.The invention also includes tied by the first testing result and the second testing result is compared with generating aqueous mode detection
Fruit.In this way, if touch action can be detected when touch medium contacts the water area to embedded touch control panel,
Accordingly, system belonging to embedded touch control panel can also be executed normally.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and make in detail in conjunction with attached drawing
Carefully it is described as follows.
Detailed description of the invention
Fig. 1 is painted the flow chart of the aqueous mode detection method of one embodiment of the invention；
Fig. 2A is painted the schematic diagram of touch control capacitance of the one embodiment of the invention in the operation of standard touch control detection；
Fig. 2 B is painted the schematic diagram of touch control capacitance of the one embodiment of the invention in the operation of illusory touch control detection；
Fig. 3 is painted the waveform diagram of the aqueous mode detection method of one embodiment of the invention；
Fig. 4 A and Fig. 4 B are painted the first and second touch control detection of the aqueous mode detection method of one embodiment of the invention
As a result schematic diagram；
Fig. 5 A, Fig. 5 B, Fig. 6 A and Fig. 6 B are painted the testing result of the aqueous mode detection method of one embodiment of the invention
Two kinds of possible situations；And
Fig. 7 is painted the block diagram of the embedded touch device of one embodiment of the invention.
Specific embodiment
Fig. 1 is please referred to, Fig. 1 is painted the flow chart of the aqueous mode detection method of one embodiment of the invention.In embedded touch
In panel, all touch pads (touch pad) of embedded touch control panel can be divided into multiple touch control detection cell groups.Step
In rapid S110, the operation of standard touch control detection is performed, and each standard scan period in multiple standard scan periods, to touching
It controls each touch control detection cell group in detection unit group and executes the operation of standard touch control detection.Such as: if embedded touch
Panel includes ten touch control detection cell groups, then step S110 can execute standard touch-control in ten standard scan periods
Detection operation, and in ten standard scan periods, ten detection unit groups are scanned respectively.In addition, being examined in ten touch-controls
After survey cell group is scanned, the first testing result can be obtained.
A referring to figure 2., Fig. 2A are painted the signal of touch control capacitance of the one embodiment of the invention in the operation of standard touch control detection
Figure.In first scan period in standard scan period, synchronization signal SYNC can be sent to first detection unit group, and
The common voltage VCOM1 of first touch control detection cell group is set as with reference to ground voltage GND.In addition, synchronization signal SYNC
Not scanned touch control detection cell group (e.g. second to the tenth touch control detection cell group) can also be transferred into
Common voltage VCOM2.If water WAT is covered in the touch pad of the first touch control detection cell group and is not scanned touch control detection list
Between the touch pad of first group, then capacitor CC can the first touch control detection cell group capacitor CA and do not scan touch-control inspection
It surveys between the capacitor CB of cell group and is formed.Since the common voltage VCOM2 of not scanned touch control detection cell group is same
Signal SYNC is walked, therefore, in the first sense period, the capacitance change of capacitor CC and CB will not be reacted.
No water information can be obtained if having scanned all touch control detection cell groups according to above description
First touch control detection result.
Referring once again to Fig. 1, in step S120, in the illusory scan period, to first in touch control detection cell group
Touch control detection group executes illusory touch control detection operation.In step S120, in the operation of illusory touch control detection, by touch control detection list
The common voltage of scanned second touch control detection group is not set as with reference to ground voltage GND in first group, and uses acquisition
Second touch control detection result.
B referring to figure 2., Fig. 2 B are painted the signal of touch control capacitance of the one embodiment of the invention in the operation of illusory touch control detection
Figure.Specifically, in the illusory scan period, the touch pad of the first touch control detection group is made to receive synchronizing information SYNC, and will
The common voltage VCOM2 of the touch pad of second touch control detection group is set as with reference to ground voltage GND.In this way, which water WAT connects
It touches to the information of the touch pad of the first and second touch control detection group, can react and be produced in the operation of illusory touch control detection
In the second raw touch control detection result.
It note that the touch pad due to a touch control detection group can be interspersed in the multiple regions of embedded touch control panel
In, that is to say, that the only illusory scan period with a scan period can be used to determine whether there is water to contact to embedded
On formula touch panel.
In addition, in another embodiment of the invention, the quantity of the second touch control detection group can be 2 or more.
Referring once again to Fig. 1, in step S130 then by comparing the first touch control detection result and the second touch control detection knot
Fruit, to obtain aqueous mode testing result.
Referring to figure 3., Fig. 3 is painted the waveform diagram of the aqueous mode detection method of one embodiment of the invention.Aqueous mode detection side
Method includes standard touch control detection operation 310 and illusory touch control detection operation 320.Standard touch control detection operation 310 includes standard
Scan period NP1-NP10, and illusory touch control detection operation 320 mainly includes an illusory scan period DP1.Such as: in standard
In touch control detection operation 310, selector can select one by one embedded touch control panel with establishing criteria scan period NP1-NP10
Touch control detection cell group.In each standard scan period NP1-NP10, selection makes the multiple of a touch control detection cell group
Touch pad is to be respectively coupled in multiple analogue-to-digital converters.Analogue-to-digital converters can be by the electricity of detection touch pad
Hold variable quantity and carrys out output test result.All touch control detections after standard scan period NP10, in embedded touch control panel
Cell group is complete scanning, and can get the first touch control detection result.
During illusory touch control detection operation 320, and in illusory scan period DP1, in touch control detection cell group
One of them will be selected and be scanned.Meanwhile by the public of not scanned one or more touch control detection cell groups
Voltage is set as with reference to ground voltage GND, and judges whether have water to contact to embedded touch by illusory scanning motion
Panel.
It should also be noted that during standard touch control detection operation 310, on embedded touch control panel and not in contact with to touch-control
The state of the water of medium can be ignored.But during standard touch control detection operation 310, due to having anti-palm touch function, because
This, touch medium can be also ignored by the state that water is touched to embedded touch control panel.In the present embodiment when sense compared with
When big touch area, if the second testing result indicates that there are water to contact to embedded touch control panel, anti-palm touching can be forbidden
Function, also, touch area is touched by water and touch medium and can produce effective report point.On the other hand, if the second inspection
It surveys in result, indicates to contact there is no water to embedded touch control panel, then the biggish touch area detected at this time may be
Caused by palm contacts, therefore, this touch area can be made to be ignored by anti-palm touch function.
Fig. 4 A and Fig. 4 B are painted the first and second touch control detection of the aqueous mode detection method of one embodiment of the invention
As a result schematic diagram.Fig. 4 A and Fig. 4 B respectively represent as the first testing result and the second testing result.In Fig. 4 A, in standard
During touch control detection operates, the region 410 with capacitance change can be sensed.Referring concurrently to shown in Fig. 4 B, in illusory inspection
During surveying operation, the region 420 with capacitance change can be sensed, and may determine that there are water to contact to embedded touch
Panel.Furthermore under the conditions of similar in the position in the position based on region 410 and region 420, it can determine whether that region 410 is effective
Touch point, and aqueous mode testing result can be obtained.
Fig. 5 A, Fig. 5 B, Fig. 6 A and Fig. 6 B are painted the testing result of the aqueous mode detection method of one embodiment of the invention
Two kinds of possible situations.In Fig. 5 A, during the operation of standard touch control detection, the first testing result is expressed as not sensing touch-control
Region.And in figure 5B, during the operation of illusory touch control detection, the second testing result is expressed as being contacted with water to embedded touching
Control panel.Referring to the first testing result and the second testing result, it can be determined that the first situation gone out be expressed as water not with
Contact touch medium is contacted to embedded touch control panel.In this first situation, touch point should not be reflected.
On the other hand, in Fig. 6 A, during the operation of standard touch control detection, touch area 610 is sensed.In Fig. 6 B, in void
If the second testing result is expressed as contacting with water to embedded touch control panel during touch control detection operates.It is detected referring to first
As a result and the second testing result, it can be determined that the second situation gone out is expressed as touch medium by water to contact to embedded
Touch panel.In this second situation, the touch point of touch area 610 can be reflected, and will not be by anti-palm touch function
And it blocks.
Fig. 7 is painted the block diagram of the embedded touch device of one embodiment of the invention.Embedded touch device 700 includes touch-control
Panel 710, touch control detection device 720, common voltage power supply unit 730 and controller 740.Control panel 710 is coupled to touch-control inspection
Survey device 720 and common voltage power supply unit 730.Controller 740 is coupled to touch control detection device 720 and common voltage power supply unit
730.Touch panel 710 has multiple touch pads, and touch pad is segmented into multiple detection unit groups.Touch control detection device 720
Held to each touch control detection cell group in touch control detection cell group each normal period of multiple normal periods
The quasi- touch control detection of rower is operated to obtain the first testing result, and in the illusory scan period, in touch control detection cell group
The first touch control detection group execute illusory touch control detection and operate to obtain the second testing result.Common voltage power supply unit 730 is used
To set multiple the second touch control detection groups for not being scanned touch control detection cell groups during the operation of illusory touch control detection
Common voltage is to referring to ground voltage GND.Common voltage power supply unit 730 is in the operation of standard touch control detection, the synchronous letter of more transmission
Number SYNC is not scanned touch control detection cell groups to multiple, with the common electrical as not scanned touch control detection cell group
Pressure.Controller 740 receives the first testing result and the second testing result, and according to the first testing result and the second detection knot
Fruit is to generate aqueous mode testing result.
About the details of operation of embedded touch device 700, all have specifically in embodiment above-mentioned and embodiment
It is bright, not described here any more.
In conclusion the present invention proposes illusory touch control detection operation, to detect whether water contacts to embedded touch face
Plate.By the touch control detection result and standard detection operation of illusory detection operation, it can identify that water outlet is contacted with touch medium
The case where to embedded touch control panel.Also that is, user can execute embedded touch control panel under water detection pattern.
Although the present invention has been disclosed by way of example above, it is not intended to limit the present invention., any those skilled in the art
Member, without departing from the spirit and scope of the present invention, when can make some changes and embellishment, therefore protection scope of the present invention is when view
Subject to appended claims range institute defender.
Symbol description
S110-S130: the step of aqueous mode detection method
SYNC: synchronization signal
CA-CC: capacitor
WAT: water
VCOM1, VCOM2: common voltage
GND: ground voltage is referred to
310: the operation of standard touch control detection
320: illusory touch control detection operation
NP1-NP10: standard scan period
DP1: illusory scan period
410,420: region
700: embedded touch device
610: touch area
710: touch panel
720: touch control detection device
730: common voltage power supply unit
740: controller
Claims (10)
1. a kind of aqueous mode detection method suitable for embedded touch control panel, comprising:
Each standard scan period in multiple standard scan periods, to each touch-control in multiple touch control detection cell groups
Detection unit group executes the operation of standard touch control detection, to obtain the first testing result；
In the illusory scan period, illusory touching is executed to the first touch control detection group in the multiple touch control detection cell group
To obtain the second testing result, and in the illusory touch control detection operation, setting is multiple not to be scanned touch-control for control detection operation
The common voltage of the second touch control detection group in detection unit group is to referring to ground voltage；And
According to first testing result and second testing result to generate aqueous mode testing result.
2. aqueous mode detection method as described in claim 1, wherein each standard in the multiple standard scan period
Scan period executes the standard touch-control to each touch control detection cell group in the multiple touch control detection cell group and examines
Surveying the step of operation is to obtain first testing result includes:
Synchronization signal is provided to scanned touch control detection cell group；
The common voltage for setting the scanned touch control detection cell group refers to ground voltage to described；And
The synchronization signal is transmitted with the common voltage as the multiple not scanned touch control detection cell group.
3. aqueous mode detection method as described in claim 1, wherein first touch control detection group is adjacent to described second
Touch control detection group.
4. aqueous mode detection method as described in claim 1, wherein according to first testing result and second detection
As a result include: the step of the aqueous mode testing result to generate
Water, which is judged whether there is, according to second testing result contacts the embedded touch control panel.
5. aqueous mode detection method as claimed in claim 4, wherein according to first testing result and second detection
As a result to generate aqueous mode testing result the step of further include:
Judge whether touch medium passes through water and contact described embed with second testing result according to first testing result
Formula touch panel..
6. a kind of embedded touch device, comprising:
Touch panel has multiple touch control detection cell groups；
Touch control detection device is coupled to the multiple touch control detection cell group, and the touch control detection device in multiple standards to sweep
Each standard scan period in the period is retouched, to each touch control detection cell group in the multiple touch control detection cell group
The operation of execution standard touch control detection is to obtain the first testing result and in the illusory scan period, to the multiple touch control detection list
The first touch control detection group in first group executes illusory touch control detection and operates to obtain the second testing result；
Common voltage power supply unit is coupled to the multiple touch control detection cell group, in the illusory touch control detection operation, if
The common voltage of second touch control detection groups of fixed multiple not scanned touch control detection cell groups is to referring to ground voltage；And
Controller is coupled to the touch control detection device and the common voltage power supply unit, receives first testing result and institute
The second testing result is stated, and according to first testing result and second testing result to generate aqueous mode testing result.
7. embedded touch device as claimed in claim 6, wherein each standard in the multiple standard scan period
Scan period,
The touch control detection device is to provide synchronization signal to scanned touch control detection cell group；
The common voltage power supply unit is to set the common voltage of the scanned touch control detection cell group as the reference
Ground voltage；And
The synchronization signal is transmitted with the common voltage as the multiple not scanned touch control detection cell group.
8. embedded touch device as claimed in claim 6, wherein first touch control detection group is adjacent to described second
Touch control detection group.
9. embedded touch device as claimed in claim 6, wherein the controller is to according to second testing result
It judges whether there is water and contacts the embedded touch device.
10. embedded touch device as claimed in claim 6, wherein the controller is also to according to the first detection knot
Fruit judges whether touch medium passes through water and contact the embedded touch control panel with second testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710573137.XA CN109254678B (en) | 2017-07-14 | 2017-07-14 | Embedded touch device and water mode detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710573137.XA CN109254678B (en) | 2017-07-14 | 2017-07-14 | Embedded touch device and water mode detection method thereof |
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| CN109254678A true CN109254678A (en) | 2019-01-22 |
| CN109254678B CN109254678B (en) | 2021-07-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8462135B1 (en) * | 2009-01-08 | 2013-06-11 | Cypress Semiconductor Corporation | Multi-touch disambiguation |
| CN104423736A (en) * | 2013-08-29 | 2015-03-18 | 天津富纳源创科技有限公司 | Touch identification method for touch screen |
| CN105094490A (en) * | 2015-08-24 | 2015-11-25 | 上海天马微电子有限公司 | Touch display panel, touch display device and touch method of touch display device |
| CN105549773A (en) * | 2014-10-29 | 2016-05-04 | 业鑫科技顾问股份有限公司 | Underwater touch detection system and underwater touch detection method |
| CN106155409A (en) * | 2015-03-27 | 2016-11-23 | 辛纳普蒂克斯公司 | Capacitive character tolerance for patterns of change processes |
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2017
- 2017-07-14 CN CN201710573137.XA patent/CN109254678B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8462135B1 (en) * | 2009-01-08 | 2013-06-11 | Cypress Semiconductor Corporation | Multi-touch disambiguation |
| CN104423736A (en) * | 2013-08-29 | 2015-03-18 | 天津富纳源创科技有限公司 | Touch identification method for touch screen |
| CN105549773A (en) * | 2014-10-29 | 2016-05-04 | 业鑫科技顾问股份有限公司 | Underwater touch detection system and underwater touch detection method |
| CN106155409A (en) * | 2015-03-27 | 2016-11-23 | 辛纳普蒂克斯公司 | Capacitive character tolerance for patterns of change processes |
| CN105094490A (en) * | 2015-08-24 | 2015-11-25 | 上海天马微电子有限公司 | Touch display panel, touch display device and touch method of touch display device |
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| CN109254678B (en) | 2021-07-20 |
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