CN106371679B - Method for detecting active stylus on touch device and touch device - Google Patents
Method for detecting active stylus on touch device and touch device Download PDFInfo
- Publication number
- CN106371679B CN106371679B CN201510678687.9A CN201510678687A CN106371679B CN 106371679 B CN106371679 B CN 106371679B CN 201510678687 A CN201510678687 A CN 201510678687A CN 106371679 B CN106371679 B CN 106371679B
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- touch device
- induction electrode
- row
- total amount
- column
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- 238000000034 method Methods 0.000 title abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 21
- 230000006698 induction Effects 0.000 claims description 69
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
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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)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a method for detecting an active stylus on a touch device and the touch device. The touch device is provided with a plurality of independent sensing electrodes which are arranged in a staggered way in rows and columns, wherein when the touch device executes an active pen detection mode, the electrodes in the same row are connected together at a first time phase so as to read the total row capacitance of each row of sensing electrodes; connecting the electrodes of the same column together at a second time phase to read the total column capacitance of each column of sensing electrodes; determining the position of an active stylus on the touch device according to the total amount of the row capacitors and the total amount of the column capacitors; according to the invention, the touch position of the active stylus can be quickly judged only by two times of reading operation.
Description
Technical field
The present invention is espespecially a kind of that active touch-control is detected on touch device about a kind of touch device and its method for detecting
The method of pen.
Background technique
Common touch-control input mode includes to touch a touch panel with finger or stylus (stylus), stylus
Working principle is to judge the touch position of stylus using the capacitance between sensing stylus and touch panel.
The type of stylus is broadly divided into active stylus and passive type stylus.Active stylus, which has to issue, drives
The ability of dynamic signal, inside have a transmit circuit, when active stylus is close to capacitance type touch-control panel, by transmit circuit
Sending out driving signal makes capacitance type touch-control panel generate capacitance variations, can calculate the active stylus according to the capacitance variations
Position of touch.
Capacitance type touch-control panel as shown in Figure 5, having multiple is in the staggered independent induction electrode 90 of row, column, respectively
The induction electrode 90 couples an independent conducting wire.When active stylus applications are in the capacitance type touch-control panel in this type
When, traditional scanning mode is to read the capacitance of each induction electrode 90 one by one, further according to the capacitor meter of each induction electrode 90
Calculate the position of active stylus.But such scanning mode needs to spend more time.When the larger of touch panel, sense
Answering the quantity of electrode will increase, and existing scan method can also take more time, it is therefore necessary to for the above method into
Row improves.
Summary of the invention
The main object of the present invention is to provide a kind of method that active stylus is detected on touch device, can quickly sentence
The operating position of disconnected active stylus out.
To achieve the aforementioned purpose, touch device applied by method of the invention has multiple staggered in row, column
Independent induction electrode, this method include:
An active sense mode is executed, is carried out under the active sense mode:
In a first phase, the electrode of same a line is linked together, obtains the row electricity of every a line induction electrode respectively
Hold total amount；
In one second phase, the electrode of same row is linked together, obtains each column electricity for arranging the induction electrode respectively
Hold total amount；And
According to the equal rows capacitor total amount and column capacitance total amount, position of the active stylus on the touch device is judged
It sets.
Using the above method, the present invention only needs respectively to execute a reading operation in first phase, the second phase respectively,
The row capacitor total amount of every a line induction electrode and the column capacitance total amount of each column induction electrode are obtained, according to these row capacitor total amounts
It can determine whether position of the active stylus on touch device with column capacitance total amount.Even large touch device, this is used
The method of invention remains on the position that only need to can determine whether active stylus by secondary reading operation, therefore, energy of the present invention
Sweep time effectively is saved, is improved efficiency.
It is a further object of the present invention to provide the touch devices that one kind can detect active stylus, which can be fast
Speed judges the operating position of an active stylus.
To achieve the aforementioned purpose, which includes:
Multiple is in the staggered induction electrode of row, column；
A plurality of conducting wire is respectively coupled to each induction electrode, each induction electrode couples the conducting wire；
One controller couples a plurality of conducting wire, which includes:
One first selecting unit couples a plurality of conducting wire, and the induction electrode of same a line is connected to one in a first phase
It rises；
One second selecting unit couples a plurality of conducting wire, and the induction electrode of same row is connected to one in one second phase
It rises；And
One sensing circuit, couples the first selecting unit and second selecting unit, the sensing circuit connect in first phase
The row capacitor total amount for receiving every a line induction electrode, each column capacitance total amount for arranging the induction electrode of Phase Receiver at second；With
And
One arithmetic element couples the sensing circuit, which sentences according to the equal rows capacitor total amount and column capacitance total amount
Disconnected position of the active stylus on the touch device.
The first selecting unit, the second selecting unit respectively first phase, the second phase will with a line induction electrode with
After the connection of same row induction electrode, which can receive the row capacitor total amount of every a line and the column capacitance of each column is total
Amount, the position of active stylus is judged for arithmetic element.Touch device of the invention only needs secondary reading operation that can sentence
Break active stylus operating position, and scan efficiency can be improved.
Detailed description of the invention
Fig. 1: the connection line figure of touch device of the present invention.
Fig. 2A: figure is run in the circuit that first phase receives row capacitor total amount under present invention active sense mode.
Fig. 2 B: at second, the circuit of Phase Receiver column capacitance total amount runs figure under present invention active sense mode.
Fig. 3: active sense mode flow chart of the invention.
Fig. 4: general sense mode flow chart of the invention.
Fig. 5: the induction electrode of existing capacitance type touch-control panel arranges schematic diagram.
Symbol description:
11 induction electrode, 12 conducting wire
20 first selecting unit, 21 first multiplexer
30 second selecting unit, 31 second multiplexer
40 third selecting unit, 41 third multiplexer
50 sensing circuit, 60 arithmetic element
70 selection signal generator, 80 driving circuit
90 induction electrode, 100 controller.
Specific embodiment
Referring to FIG. 1, providing a touch device according to the present invention, it is in row, column staggered row which, which has multiple,
Independent induction electrode 11, a plurality of conducting wire 12 and a controller 100 for column, the controller 100 include a first selecting unit 20, one
Second selecting unit 30, a third selecting unit 40, a sensing circuit 50, an arithmetic element 60 and a selection signal generator
70。
It is with the induction electrode 11 of 6 rows (X1~X6) × 6 column (Y1~Y6) in figure is that embodiment illustrates, each induction electrode
11 one independent conducting wire 12 of coupling, these conducting wires 12 are connected to first selecting unit 20 and the second selecting unit 30.In this reality
It applies in example, includes multiple first multiplexers 21, the corresponding induction of the quantity of these the first multiplexers 21 in the first selecting unit 20
The line number of electrode 11.Respectively first multiplexer 21 couples multiple induction electrodes 11 of corresponding a line, to select one of them
All electrodes 11 of induction electrode 11 or full line.6 first multiplexers 21 of the present embodiment are separately connected X1~X6 this 6 row
Induction electrode 11.It include multiple second multiplexers 31 in second selecting unit 30, the quantity of these the second multiplexers 31 is corresponding
The columns of the induction electrode 11, each induction electrode 11 of the corresponding column of second multiplexer 31 coupling, to select wherein one
All electrodes 11 of a induction electrode 11 or full line.6 second multiplexers 31 of the present embodiment are separately connected the column of Y1~Y6 etc. 6
Induction electrode 11.Therefore, each induction electrode 11 connects first multiplexer 21 and second multiplexer 31.
The third selecting unit 40 has multiple third multiplexers 41, respectively the third multiplexer 41 couple one it is corresponding this
One multiplexer 21, second multiplexer 31 corresponding with one, each multiplexer 41 are determined according to a selection signal (S1~S6)
Connect one first multiplexer 21 or one second multiplexer 31.In the present embodiment, which includes 6 thirds
Multiplexer 41.
The sensing circuit 50 couples the first selecting unit 20 and second selecting unit through the third selecting unit 40
30, which includes multiple A/D converters, the sensing signal received is converted to numerical data.
The arithmetic element 60 couples the sensing circuit 50, to judge a contact subject (such as finger or stylus) at this
Position on touch device.
The executable active sense mode of touch device of the invention.Fig. 2A shows touch device of the invention actively
The operation when first phase of sense mode.In first phase, the first multiplexer 21 is gone to select the more of same a line by control
A induction electrode 11, that is to say, that first multiplexer 21 links together multiple induction electrodes 11 of same a line, and at this time
The output of one multiplexer 21 is the summation of the capacitive sensing amount of all multiple induction electrodes 11 with a line, hereinafter referred to as row electricity
Hold total amount.The selection signal generator 70 exports first selection signal S1X~S6X to each third multiplexer 41, enable these the
The selection of three multiplexers 41 receives the output of these the first multiplexers 21.The sensing circuit 50 connects simultaneously via third selecting unit 40
All row capacitor total amount SUM_X1~SUM_X6 are received, and are converted into numerical data transmission to arithmetic element 60.
Fig. 2 B shows the operation of touch device of the invention in actively the second phase of sense mode.In the second phase
When, the second multiplexer 31 is removed multiple induction electrodes 11 of selection same row by control, that is to say, that second multiplexer 31 will be same
Multiple induction electrodes 11 of one column link together, and the output of the second multiplexer 31 at this time is all multiple induced electricities of same row
The summation of the capacitive sensing amount of pole 11, hereinafter referred to as column capacitance total amount.The selection signal generator 70 output the second selection letter
Number S1Y~S6Y gives each third multiplexer 41, and the selection of these third multiplexers 41 is enabled to receive the defeated of these the second multiplexers 31
Out.The sensing circuit 50 receives all column capacitance total amount SUM_Y1~SUM_Y6 simultaneously via third selecting unit 40, and
Numerical data transmission is converted into arithmetic element 60.
After first phase and the second phase, the arithmetic element 60 according to row capacitor total amount SUM_X1~SUM_X6 with
Column capacitance total amount SUM_Y1~SUM_Y6 judges position of the active stylus on the touch device.When active touch-control
When issuing a driving signal on the touch device, the capacitance summation of each row electrode and each column electrode can change pen.Example
If Fig. 2A provides the schematic diagram of row capacitor total amount SUM_X1~SUM_X6 of each row electrode in the top of induction electrode 11, Fig. 2 B exists
11 left of induction electrode provides the schematic diagram of column capacitance total amount SUM_Y1~SUM_Y6 of each column electrode, in the two schematic diagrames,
One axis is the position of row (or column), and another axis then indicates influence value.According to the position of each row electrode and row capacitor total amount SUM_X1
~SUM_X6, arithmetic element 60 can calculate the position of active pen in the X direction.According to the position of each column electrode and column capacitance
Total amount SUM_Y1~SUM_Y6, arithmetic element 60 can calculate the position of active pen in the Y direction.About according to X or Y-direction
Capacitance is well known to those skilled in the art with calculating contact position, and details are not described herein.
It please refers to shown in Fig. 3, is run and illustrated according to circuit above-mentioned, the present invention can be summarized and detect active stylus
Method comprising the steps of:
An active sense mode is executed, is carried out under the active sense mode:
S31: in a first phase, the induction electrode 11 of same a line is linked together, obtains the induction of every a line respectively
The row capacitor total amount of electrode 11；
S32: in one second phase, the induction electrode 11 of same row being linked together, and obtains each arrange the induction respectively
The column capacitance total amount of electrode 11；And
S33: according to the row capacitor total amount and column capacitance total amount, judge an active stylus on the touch device
Position.
Touch device also can further include a general detecting mould other than aforementioned active sense mode can be performed
Formula, to judge position of the object on touch device, which can be other objects except active stylus.Its
In, which further includes the one drive circuit 80 for issuing driving signal.Under general sense mode, it is only necessary to make
One of the first selecting unit 20 or the second selecting unit 30 are used, another selecting unit attonity below will be to use
The first selecting unit 20 illustrates general sense mode.It please refers to shown in Fig. 4, the process of the general sense mode includes:
S41: driving each induction electrode 11, and receives the capacitive sensing amount of each induction electrode 11.In this step, the selection
Signal generator 70 exports first selection signal S1X~S6X to these third multiplexers 41 of third selecting unit 40, enables these
Third multiplexer 41 connects these first multiplexers 21, which generates driving signal and pass through these third multiplexers
41 are sent to each first multiplexer 21, and respectively first multiplexer 21 is then switched in inside driving signal to be transmitted to wherein
One induction electrode 11, and receive the capacitive sensing amount of driven induction electrode 11.So it is sequentially driven each induction electrode
11 and obtain the capacitive sensing amount of each induction electrode 11.In one embodiment, which passes through these first multiplexers
21 inside switches selection, and the induction electrode 11 for issuing driving signal to each column by column can be exported 6 times for the present embodiment
Driving signal sequentially respectively to the 1st, 2 ... institute's thoughts can be obtained in the induction electrodes 11 of 6 column after 6 reception operations
Answer the capacitance of electrode 11.
S42: position of the object on the touch device is judged according to the capacitive sensing amount of each induction electrode 11.The sensing
Circuit 50 exports the capacitive sensing amount of each induction electrode 11 to arithmetic element 60, by the arithmetic element 60 according to each induction electrode
11 capacitive sensing amounts and its position calculate position of the contact subject on touch device.
By described above it is found that the present invention provides a kind of method that can quickly scan active pointer location.The present invention
Only a reading operation need to be executed respectively in first phase, the second phase, just can obtain each row induction electrode and each column induced electricity
The summation of the capacitive sensing amount of pole judges an active stylus in touch device according to the row capacitor total amount and column capacitance total amount
On position.For large touch device, the present invention still can need to only be judged rapidly active by secondary reading operation
The position of stylus.
The present invention is equally applicable for the touch control screen of embedded (In cell).Induction electrode 11 can be one piece of common electrode
(common electrode), the combination of a pixel electrode or multiple pixel electrodes.
Although the present invention has utilized above-mentioned preferred embodiment to disclose, however, it is not to limit the invention, any this field
Technical staff is not departing from the spirit and scope of the present invention, and opposite above-described embodiment carries out various changes and still belongs to this with modification
Protected technology scope is invented, therefore protection scope of the present invention is subject to view appended claims institute defender.
Claims (5)
1. one kind can detect the touch device of active stylus, include:
Multiple is in the staggered induction electrode of row, column；
A plurality of conducting wire is respectively coupled to each induction electrode, each described induction electrode couples a conducting wire；
One controller couples a plurality of conducting wire, and the controller includes:
One first selecting unit includes multiple first multiplexers, respectively corresponds coupling with the institute of a line by a plurality of conducting wire
Induction electrode is stated, each first multiplexer links together the induction electrode of same a line in a first phase；
One second selecting unit includes multiple second multiplexers, the institute of coupling same row is respectively corresponded by a plurality of conducting wire
Induction electrode is stated, each second multiplexer links together the induction electrode of same row in one second phase；
One sensing circuit couples the first selecting unit and second selecting unit, and the sensing circuit is described first
When each row of Phase Receiver described in induction electrode row capacitor total amount, Phase Receiver each column induction electrode at described second
Column capacitance total amount；And
One arithmetic element, couples the sensing circuit, and the arithmetic element is total according to the row capacitor total amount and the column capacitance
Amount, judges position of the active stylus on the touch device.
2. the touch device of active stylus can be detected as described in claim 1, includes also a third selecting unit, include
There are multiple third multiplexers, each third multiplexer couples corresponding first multiplexer institute corresponding with one
The second multiplexer is stated, and the row capacitor total amount is exported according to a first selection signal or is exported according to one second selection signal
The column capacitance total amount is to the sensing circuit.
3. the touch device of active stylus can be detected as claimed in claim 1 or 2, comprising multiple in the sensing circuit
A/D converter, each row capacitor total amount and each column capacitance total amount are converted to a numerical data.
4. can detect the touch device of active stylus as claimed in claim 2, the controller includes a selection signal
Generator, to export the first selection signal or second selection signal.
5. the touch device of active stylus can be detected as described in claim 1, wherein the touch device further wraps
Containing a general sense mode, to judge position of the object on the touch device, under the general sense mode, institute
State controller progress:
Each induction electrode is driven, and receives the capacitive sensing amount of each induction electrode；And
Position of the object on the touch device is judged according to the capacitive sensing amount of each induction electrode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104123991 | 2015-07-24 | ||
| TW104123991A TWI552030B (en) | 2015-07-24 | 2015-07-24 | Method for detecting an active pen on a touch device and the touch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106371679A CN106371679A (en) | 2017-02-01 |
| CN106371679B true CN106371679B (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510678687.9A Expired - Fee Related CN106371679B (en) | 2015-07-24 | 2015-10-19 | Method for detecting active stylus on touch device and touch device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106371679B (en) |
| TW (1) | TWI552030B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10684724B1 (en) * | 2019-01-30 | 2020-06-16 | Himax Technologies Limited | In-cell touch panel sensing system and sensing method for the in-cell touch panel sensing system |
| TWI766437B (en) * | 2020-11-16 | 2022-06-01 | 義隆電子股份有限公司 | Touch module and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391600A (en) * | 2014-11-06 | 2015-03-04 | 京东方科技集团股份有限公司 | Embedded touch screen and display device |
| CN104699322A (en) * | 2015-04-01 | 2015-06-10 | 上海天马微电子有限公司 | Array substrate, touch display panel, touch display device and detection method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6160539A (en) * | 1998-06-08 | 2000-12-12 | Wacom Co., Ltd. | Digitizer system with cursor shape changing as a function of pointer location on menu strip |
| KR100519371B1 (en) * | 2002-12-24 | 2005-10-07 | 엘지.필립스 엘시디 주식회사 | liquid crystal display device with touch panel |
| TWI522872B (en) * | 2009-01-10 | 2016-02-21 | Elan Microelectronics Corp | Contact detection method for touch pen and capacitive touch panel for capacitive touch panel |
| US9268416B2 (en) * | 2011-08-05 | 2016-02-23 | Htc Corporation | Touch control pen, touching control apparatus and touching detection method with image delete function thereof |
| CN102566800B (en) * | 2011-12-29 | 2015-08-12 | 敦泰科技有限公司 | A kind of felt pen, touch detecting method and touch detecting system |
| TWI472979B (en) * | 2012-10-22 | 2015-02-11 | Superc Touch Coporation | Touch panel device with reconfigurable sensing points and its sensing method |
| KR101489813B1 (en) * | 2013-06-28 | 2015-02-04 | 삼성전기주식회사 | Touch panel including Active stylus pen and controlling method thereof |
| TWI514212B (en) * | 2013-08-23 | 2015-12-21 | Himax Tech Ltd | Touch panel capable of detecting a stylus and a method of using the same |
| WO2015096007A1 (en) * | 2013-12-23 | 2015-07-02 | 艾攀科技有限公司 | Active capacitive pen, and touch detection and feedback driving methods therefor |
-
2015
- 2015-07-24 TW TW104123991A patent/TWI552030B/en not_active IP Right Cessation
- 2015-10-19 CN CN201510678687.9A patent/CN106371679B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391600A (en) * | 2014-11-06 | 2015-03-04 | 京东方科技集团股份有限公司 | Embedded touch screen and display device |
| CN104699322A (en) * | 2015-04-01 | 2015-06-10 | 上海天马微电子有限公司 | Array substrate, touch display panel, touch display device and detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201704939A (en) | 2017-02-01 |
| CN106371679A (en) | 2017-02-01 |
| TWI552030B (en) | 2016-10-01 |
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