CN102043498B - Touch device - Google Patents
Touch device Download PDFInfo
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- CN102043498B CN102043498B CN 200910179845 CN200910179845A CN102043498B CN 102043498 B CN102043498 B CN 102043498B CN 200910179845 CN200910179845 CN 200910179845 CN 200910179845 A CN200910179845 A CN 200910179845A CN 102043498 B CN102043498 B CN 102043498B
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- China
- Prior art keywords
- electrode
- column
- row
- control device
- contactor control
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Abstract
The invention relates to a touch device comprising a plurality of row electrodes, a plurality of column electrodes and a plurality of sensing elements, wherein the sensing elements are used for detecting the touch positions according to the potentials of the row electrodes and the column electrodes; the sensing elements at least comprise a first sensing element and a second sensing element; the first sensing element is respectively coupled with the row electrodes in a first part of the row electrodes and the column electrodes in a first part of the column electrodes; and the second sensing element is respectively coupled with the row electrodes in a second part different from the first part of the row electrodes and the column electrodes in a second part different from the first part of the column electrodes. The touch device provided by the invention can effectively shorten the scanning time without increasing the manufacturing cost.
Description
Technical field
The present invention relates to a kind of contactor control device, particularly a kind of contactor control device that can shorten sweep time.
Background technology
The most of user's interfaces such as button, keyboard or mouse that use of general computerized information product are imported data.Yet along with the appearance of contact panel, the user can use another kind of mode easily to carry out the work of data input.Contact panel and relevant control device thereof are common in general portable product, are used for making things convenient for function or other objects on user's taps screen.Contactor control device comprises projecting type capacitor touch-control (Projected Capacitive Touch) device and resistance matrix formula touch-control (Matrix Resistive Touch) device, and wherein the projecting type capacitor contactor control device is widely used on the portable apparatus such as mobile phone, Vehicular navigation device because having characteristics such as support multi-point touch (multi touch), higher transmittance and power saving.Along with the demand of mobile computer touch-control, the projecting type capacitor contactor control device also is used on the panel of large-size gradually.Yet the size of panel is more big, realize the needed electrode number of projecting type capacitor, also can increase thereupon; Cause and to use a plurality of sensor chips to realize the function of accurate touch-control.Yet sensing electrode is more many, the needed time of sensing finger, and also will be more long.Contactor control device reacts the speed to main system (as: mobile phone, computing machine) contact point, will descend.
Please refer to Fig. 1, Fig. 1 is the synoptic diagram of projecting type capacitor contactor control device 100 in the prior art.Projecting type capacitor contactor control device 100 comprises a plurality of row (Row) electrode R
1～R
n, perpendicular to column electrode R
1～R
nA plurality of row (Column) electrode C
1～C
m, first sensing element 110 and second sensing element 120, be used to provide the user and carry out the touch-control action.First sensing element 110 comprises multiplexer (Multiplexer) 112 and analog-digital converter (Analog-to-Digital Converter, ADC) 114.Second sensing element 120 also comprises multiplexer 122 and analog-digital converter 124.Column electrode R
1～R
nAnd row electrode C
1～C
mBe used for inductance capacitance, thereby and the analog-digital converter in sensing element 114,124 produce digital output voltage as the output signal of projecting type capacitor contactor control device 100.And, any strip electrode in these electrodes, according to its physical characteristics, separately corresponding to an environment capacitance parameter, therefore, when projecting type capacitor contactor control device 100 during by touch-control, the analog output voltage of certain several special electrodes will correspondingly change.First sensing element 110 is respectively coupled to column electrode R
1～R
n, be used for according to column electrode R
1～R
nPotential change produce digital output voltage and judge position of touch; In addition, second sensing element 120 is respectively coupled to row electrode C
1～C
m, be used for according to row electrode C
1～C
mPotential change produce digital output voltage and judge position of touch.
Projecting type capacitor contactor control device 100 is judged position of touch by the mode of scanning, when scanning with by column electrode R
1～R
nProvide current potential and row electrode C
1～C
mCarry out sensing scanning, perhaps by row electrode C
1～C
mProvide current potential and column electrode R
1～R
nThe mode of carrying out sensing scanning operates.That is to say, as column electrode R
1～R
nWhen current potential was provided, only the multiplexer 122 of second sensing element 120 can be with row electrode C
1～C
mOn voltage signal transfer to follow-up analog-digital converter 124 and carry out sensing scanning.And as row electrode C
1～C
mWhen current potential was provided, only the multiplexer 112 of first sensing element 110 was with column electrode R
1～R
nOn voltage signal transfer to follow-up analog-digital converter 114 and carry out sensing scanning.Under traditional arrangements of components mode, in the same time of carrying out sensing scanning, only one of them reality in the analog-digital converter 114,124 is being carried out the sensing scanning motion, makes whole sensing can not reach optimization sweep time.Therefore, how effectively to reduce the sweep time of contactor control device and do not increase the manufacturing cost of contactor control device, become the problem that industry is needed solution badly.
Summary of the invention
Therefore, one of purpose of the present invention is to provide a kind of contactor control device that can shorten sweep time, to address the above problem.
According to one embodiment of the present of invention, it discloses a kind of contactor control device.This contactor control device comprises: a plurality of column electrodes, a plurality of row electrode and a plurality of sensing element.These sensing elements are used for detecting position of touch according to the current potential of these column electrodes and these row electrodes, and these sensing elements comprise first sensing element and second sensing element at least.This first sensing element is respectively coupled to the row electrode of first in the column electrode of first in these column electrodes and these row electrodes.And this second sensing element is respectively coupled to the row electrode that is different from the second portion of this first in the column electrode of the second portion that is different from this first in these column electrodes and these row electrodes.
According to contactor control device of the present invention, in one embodiment, also comprise a column electrode, be coupled to first sensing element and second sensing element.
According to contactor control device of the present invention, in one embodiment, also comprise a row electrode, be coupled to first sensing element and second sensing element.
According to contactor control device of the present invention, in one embodiment, the number of poles of the column electrode of first equals the number of poles of the column electrode of second portion.
According to contactor control device of the present invention, in one embodiment, the number of poles of the row electrode of first equals the number of poles of the row electrode of second portion.
According to contactor control device of the present invention, in one embodiment, the number of poles that the number of poles of the column electrode of first equals the row electrode of the number of poles of column electrode of second portion and first equals the number of poles of the row electrode of second portion.
According to contactor control device of the present invention, in one embodiment, the column electrode of first comprises a plurality of column electrodes continuous in a plurality of column electrodes.
According to contactor control device of the present invention, in one embodiment, the row electrode of first comprises a plurality of column electrodes continuous in a plurality of row electrodes.
According to contactor control device of the present invention, in one embodiment, the column electrode of second portion comprises a plurality of column electrodes continuous in a plurality of column electrodes.
According to contactor control device of the present invention, in one embodiment, the row electrode of second portion comprises a plurality of row electrodes continuous in a plurality of row electrodes.
According to contactor control device of the present invention, in one embodiment, a plurality of column electrodes and a plurality of row electrode are driving/sensing electrode.
According to contactor control device of the present invention, in one embodiment, it is capacitance type touch-control panel.
Description of drawings
Fig. 1 is the synoptic diagram of existing projecting type capacitor contactor control device.
Fig. 2 is the synoptic diagram of an embodiment of contactor control device of the present invention.
Fig. 3 is the synoptic diagram of another embodiment of contactor control device of the present invention.
Embodiment
In instructions and claims, used some vocabulary to refer to specific element.Those of ordinary skill should be understood in the affiliated field, and hardware manufacturer may be called same element with different nouns.This instructions and claims are not used as distinguishing the mode of element with the difference of title, but the criterion that is used as distinguishing with the difference of element on function.Be open language mentioned " comprising " in instructions and the claims in the whole text, therefore should be construed to " including but not limited to ".In addition, " couple " word and comprise any indirect means that are electrically connected that directly reach at this.Therefore, be coupled to second device if describe first device in the literary composition, then represent this first device and can directly be electrically connected in this second device, or be electrically connected to this second device indirectly by other devices or connection means.
Please refer to Fig. 2, Fig. 2 is the synoptic diagram of an embodiment of contactor control device of the present invention.Contactor control device 200 includes, but is not limited to a plurality of column electrode Ro
1～Ro
n, perpendicular to column electrode Ro
1～Ro
nA plurality of row electrode Co
1～Co
m, first sensing element 210 and second sensing element 220, be used to provide the user and carry out touch-control action, wherein column electrode Ro
1～Ro
nWith row electrode Co
1～Co
mBe driving/sensing (Drive/Sensor) electrode.First sensing element 210 comprises multiplexer 212 and analog-digital converter 214, and similarly, second sensing element 220 also comprises multiplexer 222 and analog-digital converter 224.Column electrode Ro
1～Ro
nAnd row electrode Co
1～Co
mBe used for the voltage quasi position (or position accurate) of inductance capacitance, and the analog-digital converter in sensing element 214,224 is to produce digital output voltage as the output signal of contactor control device 200.First sensing element 210 is respectively coupled to column electrode Ro
1～Ro
nThe column electrode Ro of middle first
1～Ro
N/2And row electrode Co
1-Co
mThe row electrode Co of middle first
1～Co
M/2, be used for according to column electrode Ro
1～Ro
N/2And row electrode Co
1～Co
M/2Potential change produce digital output voltage and judge position of touch.Second sensing element 220 is respectively coupled to column electrode Ro
1～Ro
nThe column electrode Ro of middle second portion
N/2+1～Ro
nAnd row electrode Co
1～Co
mThe row electrode Co of middle second portion
M/2+1～Co
m, be used for according to column electrode Ro
N/2+1～Ro
nAnd row electrode Co
M/2+1～Co
mPotential change produce digital output voltage and judge position of touch.
When carrying out sensing scanning, if with column electrode Ro
1～Ro
nCurrent potential is provided, and then the multiplexer 222 of the multiplexer 212 of first sensing element 210 and second sensing element 220 is respectively with row electrode Co
1～Co
M/2, Co
M/2+1～Co
mOn voltage signal transfer to follow-up analog-digital converter 214,224 and carry out sensing scanning; If with row electrode Co
1～Co
mCurrent potential is provided, and the multiplexer 212 of first sensing element 210 and the multiplexer 222 of second sensing element 220 are also respectively with column electrode Ro
1～Ro
N/2, Ro
N/2+1～Ro
nOn voltage signal transfer to follow-up analog-digital converter 214,224 and carry out sensing scanning.
Therefore, in the sensing scanning process, no matter be with column electrode Ro
1～Ro
nOr row electrode Co
1～Co
mCurrent potential is provided, and analog-digital converter 214,224 all can carry out the sensing scanning motion simultaneously, therefore can shorten the time of sensing scanning effectively.
Note that in above-described embodiment the row electrode Co of first
1～Co
M/2Number of poles equal the row electrode Co of second portion
M/2+1～Co
mNumber of poles, the column electrode Ro of first
1～Ro
N/2Number of poles equal the column electrode Ro of second portion
1～n/2+1～Ro
nNumber of poles, the column electrode Ro of first
1～Ro
N/2Column electrode Ro with second portion
N/2+1～Ro
nComprise continuous a plurality of column electrodes respectively, and the row electrode Co of first
1～Co
M/2Row electrode Co with second portion
M/2+1～Co
mComprise continuous a plurality of row electrodes respectively, yet, above line electrode Ro
1～Ro
nWith row electrode Co
1～Co
mAllocation scheme only as the usefulness of example explanation, also, fifty-fifty with column electrode Ro
1～Ro
nWith row electrode Co
1～Co
mBe dispensed to a plurality of sensing elements and only be the preferred embodiments of the present invention, under the condition of spirit of the present invention, (also be that same sensing element is coupled to different types of electrode, but not only be coupled to the electrode of single kind), other column electrodes Ro
1～Ro
nWith row electrode Co
1～Co
mAllocation scheme also belong to scope of the present invention, for example as long as the number of poles of the column electrode of first equals the number of poles of the column electrode of second portion, as long as the number of poles of the row electrode of first equals the number of poles of the row electrode of second portion, as long as the column electrode of first comprises continuous a plurality of column electrodes, as long as the column electrode of second portion comprises continuous a plurality of column electrodes, as long as the row electrode of first comprises continuous a plurality of column electrodes or as long as the row electrode of second portion comprises continuous a plurality of column electrodes, all should be considered as belonging to scope of the present invention.
Please refer to Fig. 3, Fig. 3 is the synoptic diagram of another embodiment of contactor control device of the present invention.Contactor control device 300 includes, but is not limited to a plurality of column electrode Re
1～Re
n, perpendicular to column electrode Re
1～Re
nA plurality of row electrode Ce
1～Ce
m, first sensing element 310 and second sensing element 320, be used to provide the user and carry out touch-control action, wherein column electrode Re
1～Re
nWith row electrode Ce
1～Ce
mBe driving/sensing (or driving/sensing, Drive/Sensor) electrode.First sensing element 310 comprises multiplexer 312 and analog-digital converter 314, and similarly, second sensing element 320 also comprises multiplexer 322 and analog-digital converter 324.Column electrode Re
1～Re
nAnd row electrode Ce
1～Ce
mBe used for the voltage quasi position of inductance capacitance, and the analog-digital converter in sensing element 314,324 is to produce digital output voltage as the output signal of contactor control device 300.First sensing element 310 is respectively coupled to column electrode Re
1～Re
nThe column electrode Re of middle first
1～Re
N/2And row electrode Ce
1-Ce
mThe row electrode Ce of middle first
1～Ce
M/2, be used for according to column electrode Re
1～Re
N/2And row electrode Ce
1～Ce
M/2Potential change produce digital output voltage and judge position of touch.Second sensing element 320 is respectively coupled to column electrode Re
1～Re
nThe column electrode Re of middle second portion
N/2～Re
nAnd row electrode Ce
1～Ce
mThe row electrode Ce of middle second portion
M/2～Ce
m, be used for according to column electrode Re
N/2～Re
nAnd row electrode Ce
M/2～Ce
mPotential change produce digital output voltage and judge position of touch.Contactor control device 200 differences are that first sensing element 310 and second sensing element 320 are coupled to column electrode Re simultaneously among contactor control device 300 and Fig. 2
N/2And row electrode Ce
M/2Like this, contactor control device 300 can carry out sensing more accurately and scans to judge position of touch.
The above embodiments only are used for technical characterictic of the present invention is described, are not to limit the scope of the invention.In sum, the invention provides a kind of contactor control device that can shorten sweep time, by with column electrode and row electrode suitable be dispensed to a plurality of sensing elements, in the sensing scanning process, no matter be to provide current potential with column electrode or row electrode, analog-digital converter in a plurality of sensing elements all can carry out the sensing scanning motion simultaneously, thereby can shorten the time of sensing scanning effectively.
The above only is the preferred embodiments of the present invention, and all equal variation and modifications of making according to claim of the present invention all should belong to covering scope of the present invention.
The main element symbol description
100,200,300 contactor control devices
110,210,310 first sensing elements
112,122,212,222,312,322 multiplexers
114,124,214,224,314,324 analog-digital converters
120,220,320 second sensing elements.
Claims (10)
1. contactor control device comprises:
A plurality of column electrodes;
A plurality of row electrodes; And
A plurality of sensing elements are used for detecting position of touch according to the current potential of described a plurality of column electrodes and described a plurality of row electrodes, and described a plurality of sensing elements comprise at least:
First sensing element, it is respectively coupled to the row electrode of first in the column electrode of first in described a plurality of column electrode and the described a plurality of row electrode; And
Second sensing element, it is respectively coupled to the row electrode that is different from the second portion of described first in the column electrode of the second portion that is different from described first in described a plurality of column electrode and the described a plurality of row electrode,
Wherein, the column electrode sum of the column electrode of described first and described second portion is described a plurality of column electrode; And the row electrode sum of the row electrode of described first and described second portion is described a plurality of row electrode.
2. contactor control device according to claim 1, wherein, the number of poles of the column electrode of described first equals the number of poles of the column electrode of described second portion.
3. contactor control device according to claim 2, wherein, the number of poles of the row electrode of described first equals the number of poles of the row electrode of described second portion.
4. contactor control device according to claim 1, wherein, the number of poles of the row electrode of described first equals the number of poles of the row electrode of described second portion.
5. contactor control device according to claim 1, wherein, the column electrode of described first comprises a plurality of column electrodes continuous in described a plurality of column electrode.
6. contactor control device according to claim 1, wherein, the row electrode of described first comprises a plurality of row electrodes continuous in described a plurality of row electrode.
7. contactor control device according to claim 1, wherein, the column electrode of described second portion comprises a plurality of column electrodes continuous in described a plurality of column electrode.
8. contactor control device according to claim 1, wherein, the row electrode of described second portion comprises a plurality of row electrodes continuous in described a plurality of row electrode.
9. contactor control device according to claim 1, wherein, described a plurality of column electrodes and described a plurality of row electrode are driving/sensing electrode.
10. contactor control device according to claim 1, it is capacitance type touch-control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910179845 CN102043498B (en) | 2009-10-15 | 2009-10-15 | Touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910179845 CN102043498B (en) | 2009-10-15 | 2009-10-15 | Touch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102043498A CN102043498A (en) | 2011-05-04 |
| CN102043498B true CN102043498B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910179845 Expired - Fee Related CN102043498B (en) | 2009-10-15 | 2009-10-15 | Touch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102043498B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609100B (en) * | 2012-01-17 | 2015-05-06 | 苏州达方电子有限公司 | Touch keyboard |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932117A2 (en) * | 1998-01-22 | 1999-07-28 | STMicroelectronics, Inc. | Touchpad providing screen cursor/pointer movement control |
| CN1963736A (en) * | 2005-11-12 | 2007-05-16 | 深圳市联思精密机器有限公司 | Digifax touch panel display |
| CN101008727A (en) * | 2006-01-27 | 2007-08-01 | 三星电子株式会社 | Display device and sensing signal processing apparatus |
-
2009
- 2009-10-15 CN CN 200910179845 patent/CN102043498B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932117A2 (en) * | 1998-01-22 | 1999-07-28 | STMicroelectronics, Inc. | Touchpad providing screen cursor/pointer movement control |
| CN1963736A (en) * | 2005-11-12 | 2007-05-16 | 深圳市联思精密机器有限公司 | Digifax touch panel display |
| CN101008727A (en) * | 2006-01-27 | 2007-08-01 | 三星电子株式会社 | Display device and sensing signal processing apparatus |
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| Publication number | Publication date |
|---|---|
| CN102043498A (en) | 2011-05-04 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130814 Termination date: 20191015 |