CN102789330B - It is applicable to the drive system of matrix scanning device - Google Patents
It is applicable to the drive system of matrix scanning device Download PDFInfo
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- CN102789330B CN102789330B CN201110127993.5A CN201110127993A CN102789330B CN 102789330 B CN102789330 B CN 102789330B CN 201110127993 A CN201110127993 A CN 201110127993A CN 102789330 B CN102789330 B CN 102789330B
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- drive circuit
- scanning device
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- matrix scanning
- bus
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- 239000011159 matrix material Substances 0.000 title claims abstract description 43
- 239000004020 conductor Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000004088 simulation Methods 0.000 claims description 6
- 230000001808 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
A kind of drive system being applicable to matrix scanning device.Substrate the first periphery is in the first direction located at by multiple first drive circuits, and each this first drive circuit couples at least one row conductor of matrix scanning device.Substrate the second periphery is in a second direction located at by multiple second drive circuits, and each this second drive circuit couples at least one column wire of matrix scanning device.Main controller controls the first drive circuit and the second drive circuit.Bus is electrically coupled to master controller, the first drive circuit and the second drive circuit.
Description
Technical field
The present invention relates to a kind of matrix scanning device, be applicable to matrix-scanning dress particularly to one
The drive system put.
Background technology
Contact panel belongs to a kind of matrix scanning device, and its row conductor and column wire are configured as matrix
Pattern.The detecting of touch-control can be by sequentially scan columns wire and from row conductor reception response.When touching
When the resolution of control panel increases, more wire need to be used to reach touch detection.But,
Wire count increases, and need to reserve more boundary space to accommodate these from contact panel institute fan-out
Wire, hence in so that contact panel is the hugest or makes the miniaturization of contact panel become more
Difficulty.
Additionally, be connected to the controller of row conductor and column wire in the middle of conventional touch panel, typically
It is to design for specific contact panel and manufacture.In other words, each contact panel
Size has corresponding controller, therefore, it is impossible to allow controller standardization, and waste of manpower is also
Add Time To Market.
Therefore the drive system proposing a kind of novelty is needed badly, empty in order to solve ever-increasing border
Between problem so that it is be common to various contact panel.
Summary of the invention
In view of above-mentioned, an object of the present invention is that proposing one is applicable to matrix scanning device
Drive system, in order to the wire count of a large amount of boundary spaces reducing matrix scanning devices, and
Various sizes of matrix scanning device can be compatible with.
According to embodiments of the present invention, it is adaptable to the drive system of matrix scanning device includes multiple
One drive circuit, multiple second drive circuit, master controller and bus.First drive circuit sets
In substrate the first periphery in the first direction, each this first drive circuit couples matrix and sweeps
At least one row conductor of imaging apparatus.Substrate second week is in a second direction located at by second drive circuit
Limit, each this second drive circuit couples at least one column wire of matrix scanning device.Main
Controller controls the first drive circuit and the second drive circuit.Bus be electrically coupled to master controller,
First drive circuit and the second drive circuit.
Accompanying drawing explanation
Fig. 1 shows the side of the drive system being applicable to matrix scanning device of the embodiment of the present invention
Block figure.
Fig. 2 shows the detailed block diagram of the drive circuit of the embodiment of the present invention.
Fig. 3 is connected to exemplified with the matrix multiplexer of the first drive circuit in matrix scanning device
Between bus and row conductor.
Fig. 4 shows the detailed block diagram of the analog/digital multiplexer of the embodiment of the present invention.
Fig. 5 is exemplified with the connection between bus and drive circuit.
Fig. 6 shows the sequential chart that the replacement of drive circuit sets with identification code.
Primary clustering symbol description
10 substrates
11 drive circuits
110 matrix multiplexers
110A the first control signal
112 analog/digital multiplexers
112A the second control signal
114 keep in controller
116 first logic circuits
118 second logic circuits
12 wires
13 master controllers
14 buses
X0-Xm the first drive circuit
Y0-Yn the second drive circuit
AXD0 analog/digital switching signal
AXD1 analog/digital switching signal
FBK0 feedback signal
FBK1 feedback signal
VCC power supply
GND ground connection
D [7:0] signal
G [7:0] signal
SW switchs
EN enable signal
spi_miso、spi_mosi、spi_clk、smartIO0、smartIO1、smartIO2
Serial circumference interface (SPI) signal
Detailed description of the invention
Fig. 1 shows the side of the drive system being applicable to matrix scanning device of the embodiment of the present invention
Block figure, this matrix scanning device can be contact panel or display panels, but be not limited to this.
In the present embodiment, drive system includes two groups of drive circuit 11: the first drive circuit (examples
Such as scan drive circuit) X0-Xm, is located at the of substrate 10 (such as X-axis) in the first direction
One periphery；And second drive circuit (such as data drive circuit) Y0-Yn, it is located at substrate 10
Second periphery of (such as Y-axis) in a second direction.Each drive circuit 11 is coupled to square
One or more row/column wire 12 of battle array scanning means.In an example, substrate 10 is touch-control
The glass substrate of panel (as matrix scanning device).
Drive system also includes master controller 13, in order to control the first drive circuit X0-Xm and
Second drive circuit Y0-Yn.It is outside that master controller 13 can be located at substrate 10, but is not limited to
This.Bus 14 is electrically coupled to master controller the 13, first drive circuit X0-Xm and second and drives
Between the Y0-Yn of galvanic electricity road, in order to transmit mutually signal.One or more bus of bus 14 is led
Line may be set to analog channel (in simulation model) or digital channel (in figure pattern).?
In one embodiment, bus 14 can use timesharing or/and batch (batch) mode, in order to transmit
Signal is between substrate 10 and master controller 13.Thereby, the output and input pins of master controller 13
Number can reduce in a large number, and can reduce the boundary space of substrate 10.
Fig. 2 shows the detailed block diagram of the drive circuit 11 of the embodiment of the present invention.In this enforcement
In example, drive circuit 11 mainly includes matrix multiplexer 110, analog/digital multiplexer 112
And temporary controller 114.Temporary controller 114 is electrically coupled to bus 14.Matrix multitask
Device 110 electric property coupling at least string/row conductor 12, it is controlled by temporary controller 114, (source
Autonomous controller 13) analog/digital switching signal AXD0/AXD1 by matrix multitask
Device 110 and connect with the bus conductor of bus 14.Analog/digital switching signal AXD0 is in order to control
Make the first drive circuit X0-Xm, and analog/digital switching signal AXD1 is driven in order to control second
Galvanic electricity road Y0-Yn.For example, matrix multiplexer 110 is controlled by the first control signal
110A, it is to be controlled by temporary controller 114, analog/digital by the first logic circuit 116
Switching signal AXD0/AXD1 is produced.In the present embodiment, when analog/digital switching signal
When AXD0/AXD1 is " 1 ", bus 14 switches to simulation model；Otherwise, work as analog/digital
When switching signal AXD0/AXD1 is " 0 ", bus 14 switches to figure pattern.Fig. 3 exemplified with
In matrix scanning device, the matrix multiplexer 110 of the first drive circuit X0-Xm is connected to bus
Between 14 and row conductor 12.It is according to master control that connection between bus 14 and row conductor 12 sets
The temporary content that device 13 processed is loaded.
Referring again to Fig. 2, analog/digital multiplexer 112 is transmitted in the mould of bus 14 in order to regulate
Plan/digital signal, it is controlled by temporary controller 114 and analog/digital switching signal
AXD0/AXD1.For example, analog/digital multiplexer 112 is controlled by the second control signal
112A, it is to be controlled by temporary controller 114, analog/digital by the second logic circuit 118
Switching signal AXD0/AXD1 is produced.
Fig. 4 shows the detailed square of the analog/digital multiplexer 112 of the embodiment of the present invention
Figure.In the present embodiment, reserved bus conductor D0 is in order to automatically obtain set drive circuit (example
X0-Xm such as Fig. 1) number.Such as, after setting drive circuit 11, its simulation/
The switch SW of digital multiplexer 112 is closed by the control of the second control signal 112A,
Therefore, a preset signals (such as " 0 ") is able to lead to bus from bus conductor node D0 transmission
Line node D0 '.Last drive circuit of the drive circuit interconnected be (such as Fig. 1's
Xm) understand this preset signals of bus conductor node D0 ' as feedback signal FBK0 or FBK1,
And it is fed back to master controller 13.Such as, feedback signal FBK0 is returned from the first drive circuit Xm
Award, and feedback signal FBK1 is feedback from the second drive circuit Yn.When master controller 13 is detected
During to this feedback signal FBK0/FBK1, the number of set drive circuit can be learnt.
In the present embodiment, the wire of some buses 14 comes according to certain operational modes with being suitable for
Use.Fig. 5 is exemplified with the connection between bus 14 and the first drive circuit X0-Xm.Such as,
The bus conductor indicating spi_miso, spi_mosi and spi_clk is as serial circumference interface
The bus signals of (serial peripheral interface, SPI) institute's specification, and indicate smartIO0,
The bus conductor of smartIO1 and smartIO2 is then that the various operator schemes as drive system set
Surely it is used.
Before and matrix scanning device start real in drive system operates, drive circuit 11 is required
Reset and set corresponding identification code (ID) in advance.Fig. 6 shows the replacement of drive circuit 11
The sequential chart set with identification code.Temporary controller 114 according to drive circuit 11 stores up individually
The identification code deposited, each drive circuit 11 thus be able to addressed with perform data/signal reading
Take or write.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention；
Other equivalences completed under without departing from spirit disclosed in this invention all change or modify, all
Should be included in claim limited range.
Claims (10)
1. it is applicable to a drive system for matrix scanning device, including:
Multiple first drive circuits, are located at a substrate the first periphery in the first direction, each
This first drive circuit all couples at least one row conductor of described matrix scanning device；
Multiple second drive circuits, are located at described substrate the second periphery in a second direction, each
This second drive circuit individual all couples at least one column wire of described matrix scanning device；
One master controller, in order to control described first drive circuit and described second drive circuit；
And
One bus, is electrically coupled to described master controller, described first drive circuit and described
Two drive circuits, and wherein said first drive circuit and described second drive circuit pass through institute
State bus to be connected with each other；
Wherein, the described first or described second drive circuit includes:
One keeps in controller, is electrically coupled to described bus；
One matrix multiplexer, the described column wire of electric property coupling at least or described row conductor,
This matrix multiplexer be controlled by described temporary controller and an analog/digital switching signal and with institute
State the bus conductor connection of bus；And
One analog/digital multiplexer, in order to regulate the signal being transmitted in described bus, this simulation
/ digital multiplexer is controlled by described temporary controller and described analog/digital switching signal,
And the connection between wherein said column wire or described row conductor and described bus sets
According to the temporary content stored by described temporary controller,
And wherein said master controller includes a feedback signal node, in order to receive last
The preset signals that described first drive circuit and described second drive circuit are feedback, to obtain
Described first drive circuit and the number of described second drive circuit.
It is applicable to the drive system of matrix scanning device, Qi Zhongsuo the most as claimed in claim 1
Stating matrix scanning device is a contact panel.
It is applicable to the drive system of matrix scanning device, Qi Zhongsuo the most as claimed in claim 1
State master controller to be located at outside described substrate.
It is applicable to the drive system of matrix scanning device, Qi Zhongsuo the most as claimed in claim 1
At least one bus conductor stating bus is set to an analog channel when a simulation model, or
Person is set to a digital channel when a figure pattern.
It is applicable to the drive system of matrix scanning device, Qi Zhongsuo the most as claimed in claim 4
State master controller and export described analog/digital switching signal, in order in described simulation model or described
Switch between figure pattern.
It is applicable to the drive system of matrix scanning device, Qi Zhongsuo the most as claimed in claim 1
State temporary content to be loaded by described master controller.
It is applicable to the drive system of matrix scanning device, Qi Zhongsuo the most as claimed in claim 1
State the first or described second drive circuit and also include one first logic circuit, be controlled by described temporary
Controller and described analog/digital switching signal, in order to produce one first control signal.
It is applicable to the drive system of matrix scanning device, Qi Zhongsuo the most as claimed in claim 1
State the first or described second drive circuit and also include one second logic circuit, be controlled by described temporary
Controller and described analog/digital switching signal, in order to produce one second control signal.
It is applicable to the drive system of matrix scanning device, Qi Zhongsuo the most as claimed in claim 8
State analog/digital multiplexer and include a switch, when the most described first or described second drives
After circuit is set, this switch is controlled by described second control signal and cuts out, so that
Described preset signals can pass through described analog/digital multiplexer.
It is applicable to the drive system of matrix scanning device the most as claimed in claim 1, wherein
Described master controller exports identification code keeping in the described first or described second drive circuit respectively
Controller.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110127993.5A CN102789330B (en) | 2011-05-17 | It is applicable to the drive system of matrix scanning device | |
| US13/299,360 US9423906B2 (en) | 2011-05-17 | 2011-11-18 | Drive system adaptable to a matrix scanning device |
| KR1020110128847A KR101406928B1 (en) | 2011-05-17 | 2011-12-05 | Drive system adaptable to a matrix scanning device |
| JP2011267101A JP5670870B2 (en) | 2011-05-17 | 2011-12-06 | Drive system adaptable to matrix scanning device |
| EP11194175.3A EP2525276B1 (en) | 2011-05-17 | 2011-12-19 | Drive system adaptable to a matrix scanning device |
| TW101106133A TWI467433B (en) | 2011-05-17 | 2012-02-24 | Drive system adaptable to a matrix scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110127993.5A CN102789330B (en) | 2011-05-17 | It is applicable to the drive system of matrix scanning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102789330A CN102789330A (en) | 2012-11-21 |
| CN102789330B true CN102789330B (en) | 2016-12-14 |
Family
ID=
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458673C (en) * | 2006-05-31 | 2009-02-04 | 北京汇冠新技术有限公司 | Infrared touch screen for realizing scan driving by bus organized structure |
| CN101937662A (en) * | 2008-10-30 | 2011-01-05 | 三星电子株式会社 | Touch controller, and display driving circuit and display device and system having the touch controller |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458673C (en) * | 2006-05-31 | 2009-02-04 | 北京汇冠新技术有限公司 | Infrared touch screen for realizing scan driving by bus organized structure |
| CN101937662A (en) * | 2008-10-30 | 2011-01-05 | 三星电子株式会社 | Touch controller, and display driving circuit and display device and system having the touch controller |
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