CN102033636B - Control system of touch module - Google Patents
Control system of touch module Download PDFInfo
- Publication number
- CN102033636B CN102033636B CN200910179202A CN200910179202A CN102033636B CN 102033636 B CN102033636 B CN 102033636B CN 200910179202 A CN200910179202 A CN 200910179202A CN 200910179202 A CN200910179202 A CN 200910179202A CN 102033636 B CN102033636 B CN 102033636B
- Authority
- CN
- China
- Prior art keywords
- control
- module
- touch
- signal
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Electronic Switches (AREA)
Abstract
The invention discloses a control system of a touch module, which is electrically coupled between the touch module and a host system, and used for transmitting a comprehensive touch signal to the host system by receiving a plurality of first touch induction signals emitted by the touch module. The control system comprises a line selection module, a control processing module and an analog-digital converter, wherein the line selection module is used for receiving a plurality of first touch induction signals from the touch module by a plurality of electrical transmission paths, and selecting an analog touch signal from the first touch induction signals according to line selection signals sent by the control processing module, then transmitting the analog touch signal to the analog-digital converter; the analog-digital converter is used for accepting the control of the control processing module, receiving the analog touch signal, and converting the analog touch signal into a digital touch signal; and the control processing module is used for receiving the digital touch signal, and sending a comprehensive touch signal to the host system according to the digital touch signal.
Description
Technical field
The invention relates to a kind of control system, refer to a kind of control system of touch-control module especially.
Background technology
Along with scientific-technical progress; It is also more and more universal that PDA(Personal Digital Assistant), mobile phone, dull and stereotyped mobile computer etc. have the electronic installation of touch panel; Touch panel on the market can be divided into big type of number according to its design concept, and wherein the most representative contact panel is electric resistance touch-control panel and capacitance type touch-control panel.
Electric resistance touch-control panel be utilize finger or arbitrarily object push panel surface, make the inner conductive layer of panel produce voltage, and then the position that is pressed of detecting panel surface; Another is a capacitance type touch-control panel then, is that utilization is pointed or the conductive body contact surface plate is surperficial arbitrarily, and produces capacitive coupling with the formed electric field of panel conductive layer, with the Weak current of absorption panel surface, and then detects the position that panel surface is touched.
And mostly the electric resistance touch-control panel of prior art is the panel of single-point touch formula; Its panel is a double-decker; Wherein one deck is a bias layer; Normally be electrically connected to four corners or four edges of bias layer, and four bias voltage electric wires imposed bias voltage, so as to the uniform electric field of two orthogonal directionss of formation staggered on bias layer by the touch-control module control system by four bias voltage electric wires.
Other one deck of panel then is a conductive layer; Conductive layer is to be electrically connected to the touch-control module control system by an induction electric wire; When the panel surface receives the user when pushing; Conductive layer will touch bias layer and produce induction power, and is sent to the touch-control module control system by the induction electric wire, judges the position of touch points for the touch-control module control system.
And because induction power that conductive layer produced is a simulating signal, send before induction power arrives host computer system when the tendency to develop of touch-control module control system, just must utilize analogue-to-digital converters that analog signal conversion is digital numerical value earlier.
See also Fig. 1, Fig. 1 is the functional block diagram of control system of the touch-control module of prior art.The control system 300 of the touch-control module of prior art; Be to be electrically coupled between touch-control module 100 and the host computer system 200; Through receiving the analogue inductive signal S1 that is sent by touch-control module 100; Transmit touch-control integrated signal S4 to host computer system 200, this control system 300 comprises analogue-to-digital converters 31, control treatment module 32, bias voltage driver module 33 and interrupt request control module 34.
Analogue-to-digital converters 31 are electrically connected at touch-control module 100, through receiving analogue inductive signal S1, convert analogue inductive signal S1 into digital induced signal S1 ', and send digital induced signal S1 ' to control treatment module 32.
Bias voltage driver module 33 is electrically connected at control treatment module 32 and touch-control module 100, through receiving the bias voltage control signal S2 that control treatment module 32 is sent, and according to bias voltage control signal S2 transmission substrate bias electric power BV to touch-control module 100.
Interrupt request control module 34 is to be electrically connected at touch-control module 100, control treatment module 32 and host computer system 200, through receiving interrupt request (the Interrupt Request that analogue inductive signal S1 and control treatment module 32 are sent; IRQ) control signal S3, and send interrupt request singal IRQ according to this to host computer system 200.
Wherein, control system 300 more comprises interface module 35, and interface module 35 is electrically connected between control module 32 and the host computer system 200, through converting touch-control integrated signal S4 into meet host system interface signal format.
But; Along with the consumer for the increase in demand of contact panel and manufacturer research and development progress to contact panel; The contact panel that several multiple spot input types are arranged has successively been asked the city; And the electric resistance touch-control panel of multiple spot input type mainly is that conductive layer is divided into a plurality of independent conductive pieces, and utilizes induction to be wired to control system separately each conductive area, through in the same time, a plurality of conductive area being done the position judgment of induction power detecting and touch point.
The control system 300 of reviewing the touch-control module of prior art is that the contact panel that is directed against the single-point input type designs; Because control system 300 is to utilize analogue-to-digital converters 31 directly to receive the analogue inductive signal S1 that touch-control module 100 is produced; When being applied to the contact panel of multiple spot input type; Must prepare a plurality of analogue-to-digital converters and electrically connect each induction electric wire, so as to receiving the induction power of each conductive area.
And the digital output end of analogue-to-digital converters often has not only output connecting pin; In other words; When the contact panel of multiple spot input type has N bar induction electric wire; The control system of prior art just must prepare N analogue-to-digital converters, and this N analogue-to-digital converters just have the multiple output connecting pin of N, and then a multiple pin that causes control treatment module also must have N electrically connects all analogue-to-digital converters.
In sum; Because existing control system is to utilize analogue-to-digital converters directly to receive the analogue inductive signal that touch-control module produced; When being applied to the contact panel of multiple spot input type; Just must prepare a plurality of analogue-to-digital converters and electrically connect each induction electric wire, pin number and area when also therefore causing The whole control system to be made significantly increase, and then cause the difficulty of equipment miniaturization.
Summary of the invention
The control system that the purpose of this invention is to provide a kind of touch-control module; Before a plurality of touch-control sensing signals that touch-control module sent get into analogue-to-digital converters; Earlier these touch-control sensing signals are made a choice, to reduce the number of analogue-to-digital converters in the control system.
For realizing that the object of the invention provides a kind of control system of touch-control module; Be to be electrically coupled between a touch-control module and the host computer system; Through according to by a plurality of first touch-control sensing signals that this touch-control module sent; Transmit a touch-control integrated signal to this host computer system, this control system comprises:
One circuit is selected module, is to be electrically connected at this touch-control module by many first electrical transmission paths, and each first electrical transmission path is to transmit one first touch-control sensing signal to this circuit respectively to select module;
One control treatment module; Be to be electrically connected at this circuit to select module; Select module through sending a line selecting signal to this circuit, make this circuit select module after receiving those first touch-control sensing signals, according to this line selecting signal; Select wherein one from those first touch-control sensing signals, send a simulation touching signals according to this; And
One analogue-to-digital converters; Be to be electrically connected at this circuit to select module and this control treatment module; Should simulate touching signals through receiving, should simulate touching signals and convert a digital touch controlled signal into, and should be sent to this control treatment module by digital touch controlled signal; Supply this control treatment module according to this digital touch controlled signal, send this touch-control integrated signal to this host computer system.
This touch-control module is an electric resistance touch-control module.
This touch-control module is a multiple spot input type touch-control module.
It is a multiplexer that this circuit is selected module.
In a preferred embodiment of the present invention; Control system has more comprised the interrupt request control module; This interrupt request control module is to be electrically connected at control treatment module and host computer system; And be electrically connected at circuit by many second electrical transmission paths and select module, wherein, each above-mentioned many second electrical transmission path is one in first corresponding above-mentioned electrical transmission paths of difference.
Hold continuous above-mentioned technological means; In a preferred embodiment of the present invention; It is to receive a plurality of first touch-control sensing signals according to line selecting signal that circuit is selected module; And transmit at least one second touch-control sensing signal to interrupt request control module by many second electrical transmission paths, and the interrupt request control module more receives the interrupt request control signal that control treatment module is sent, and sends interrupt request singal according to this to host computer system.
This interrupt request control module is to send one according to this second induced signal that is received to receive the touch-control tracer signal to this control treatment module.
The control system of described touch-control module; More comprise a bias voltage driver module; This bias voltage driver module is to be electrically connected at this touch-control module and this control treatment module; Through receiving the bias voltage control signal that this control treatment module is sent, and provide this touch-control module at least one driving voltage according to this.
The control system of described touch-control module more comprises an interface module, and this interface module is to be electrically connected at this control treatment module and this host computer system, and wherein, this control treatment module is to transmit this touch-control integrated signal to this host computer system by this interface module.
The control system of described touch-control module, this control treatment module more comprise a sequential generator, and this clock generator is in order to producing a clock signal, and this control treatment module is to produce this line selecting signal according to this clock signal.
Beneficial effect of the present invention is:
Control system compared to the touch-control module of prior art; The present invention is before a plurality of first touch-control sensing signals that touch-control module sent get into analogue-to-digital converters; Utilize circuit to select module earlier these a plurality of first touch-control sensing signals to be made a choice; With the number of analogue-to-digital converters in the minimizing control system, and then make the miniaturization of multiple spot input type contact panel.
Describe the present invention below in conjunction with accompanying drawing and specific embodiment, but not as to qualification of the present invention.
Description of drawings
Fig. 1 is the functional block diagram of the control system of existing touch-control module;
Fig. 2 is the functional block diagram of a preferred embodiment of the present invention.
Wherein, Reference numeral
Touch-control module 100
Analogue-to-digital converters 31
Bias voltage driver module 33
Analogue inductive signal S1
Numeral induced signal S1 '
Bias voltage control signal S2
Interrupt request control signal S3
Touch-control integrated signal S4
Interrupt request singal IRQ
Substrate bias electric power BV
Touch-control module 400
Circuit is selected module 51
Analogue-to-digital converters 53
Bias voltage driver module 54
Interrupt request control module 55
The first touch-control sensing signal S5
The second touch-control sensing signal S5 '
Simulation touching signals S6
Digital touch controlled signal S6 '
Bias voltage control signal S7
Line selecting signal S8
Interrupt request control signal S9
Touch-control integrated signal S10
Substrate bias electric power BV '
Interrupt request singal IRQ '
Embodiment
The invention relates to a kind of control system, refer to a kind of control system of touch-control module especially.Below enumerate a preferred embodiment now with explanation the present invention, so be familiar with this art and know that all this is merely one for example, and be not in order to limit invention itself.The detailed description of relevant this preferred embodiment is following.
See also Fig. 2, Fig. 2 is the functional block diagram of a preferred embodiment of the present invention.Control system 500 of the present invention is electrically coupled between touch-control module 400 and the host computer system 200, through receiving a plurality of first touch-control sensing signal S5 that sent by touch-control module 400, transmits touch-control integrated signal S10 to host computer system 200.Wherein, touch-control module 400 is a kind of touch-control module of multiple spot input type, and the preferably in present embodiment is a kind of touch-control module of resistance-type.
It is to be electrically connected at touch-control module 400 by many first electrical transmission paths that circuit is selected module 51, and each bar first electrical transmission path is to be used for transmitting respectively one first touch-control sensing signal S5 to circuit selection module 51.Wherein, circuit selects module 51 to be made up of at least one multiplexer.
Wherein, control treatment module 52 more can comprise clock generator (figure does not show), and clock generator is in order to the generation clock signal, and control treatment module 52 can produce line selecting signal S8 according to clock signal.
Analogue-to-digital converters 53 are to be electrically connected at circuit to select module 51 and control treatment module 52; Through receiving simulation touching signals S6; To simulate touching signals S6 and convert digital touch controlled signal S6 ' into; And digital touch controlled signal S6 ' is sent to control treatment module 52, and supply control treatment module 52 according to digital touch controlled signal S6 ', send touch-control integrated signal S10 to host computer system 200.
In the middle of this preferred embodiment; Control system 500 more can comprise bias voltage driver module 54; Bias voltage driver module 54 is to be electrically connected at touch-control module 400 and control treatment module 52; Through receiving the bias voltage control signal S7 that control treatment module 52 is sent, and provide touch-control module 400 at least one substrate bias electric power BV ' according to this
Further; Control system 500 more can comprise interrupt request control module 55 in the middle of this preferred embodiment; Interrupt request control module 55 is to be electrically connected at control treatment module 52 and host computer system 200, and interrupt request control module 55 is to be electrically connected at circuit by many second electrical transmission paths to select module 51.Wherein, each above-mentioned many second electrical transmission path is one in respectively corresponding above-mentioned many first electrical transmission paths.
And; It is to receive a plurality of first touch-control sensing signal S5 according to line selecting signal S8 that circuit is selected module 51; And transmit at least one second induced signal S5 ' to interrupt request control module 55 by many second electrical transmission paths; And interrupt request control module 55 more receives the interrupt request control signal S9 that control treatment module 52 is sent, and sends an interrupt request singal IRQ ' according to this to host computer system 200.
Further; Interrupt request control module 55 more can receive touch-control tracer signal (figure does not show) according at least one one of the second induced signal S5 ' passback that is received, and to control treatment module 52, this content that receives the touch-control tracer signal is the second induced signal S5 ' status transmission about each bar second electrical transmission path.
In addition; Control system 500 more can comprise interface module 56 in the middle of this preferred embodiment; Interface module 56 is to be electrically connected between control treatment module 52 and the host computer system 200, and control treatment module 52 is to transmit touch-control integrated signal S10 to host computer system 200 by interface module 56.
In sum; The control system 500 of touch-control module of the present invention is before a plurality of first touch-control sensing signal S5 that touch-control module 400 is sent get into analogue-to-digital converters 53; Utilize circuit to select module 51 earlier these first touch-control sensing signals S5 to be made a choice, therefore be able to reduce the number of analogue-to-digital converters 53 in the control system 500 compared to the control system 300 of the touch-control module of prior art.
In other words; When the contact panel of multiple spot input type has N bar induction electric wire; The control system 500 of touch-control module of the present invention only need prepare analogue-to-digital converters 53; And utilize circuit to select module 51 to come the N bar induction induced signal that electric wire transmitted is done selection, more current selected induced signal is sent to control treatment module 52 by analogue-to-digital converters 53.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (7)
1. the control system of a touch-control module is characterized in that, is to be electrically coupled between a touch-control module and the host computer system; Through according to by a plurality of first touch-control sensing signals that this touch-control module sent; Transmit a touch-control integrated signal to this host computer system, this control system comprises:
One circuit is selected module, is to be electrically connected at this touch-control module by many first electrical transmission paths, and each first electrical transmission path is to transmit one first touch-control sensing signal to this circuit respectively to select module;
One control treatment module; Be to be electrically connected at this circuit to select module; Select module through sending a line selecting signal to this circuit, make this circuit select module after receiving those first touch-control sensing signals, according to this line selecting signal; Select wherein one from those first touch-control sensing signals, send a simulation touching signals according to this;
One analogue-to-digital converters; Be to be electrically connected at this circuit to select module and this control treatment module; Should simulate touching signals through receiving, should simulate touching signals and convert a digital touch controlled signal into, and should be sent to this control treatment module by digital touch controlled signal; Supply this control treatment module according to this digital touch controlled signal, send this touch-control integrated signal to this host computer system; And
One interrupt request control module; This interrupt request control module is to be electrically connected at this control treatment module and this host computer system; And this interrupt request control module is to be electrically connected at this circuit by many second electrical transmission paths to select module; Wherein, every second electrical transmission path is respectively to should many first one of in the electrical transmission path;
Wherein, It is to receive those first touch-control sensing signals according to this line selecting signal that this circuit is selected module; And transmit at least one second induced signal to this interrupt request control module by those second electrical transmission paths; And this interrupt request control module receives the interrupt request control signal that this control treatment module is sent; Send an interrupt request singal according to this to this host computer system, this interrupt request control module is to send one according to this second induced signal that is received to receive the touch-control tracer signal to this control treatment module.
2. the control system of touch-control module according to claim 1 is characterized in that, this touch-control module is an electric resistance touch-control module.
3. the control system of touch-control module according to claim 1 is characterized in that, this touch-control module is a multiple spot input type touch-control module.
4. the control system of touch-control module according to claim 1 is characterized in that, it is a multiplexer that this circuit is selected module.
5. the control system of touch-control module according to claim 1; It is characterized in that; More comprise a bias voltage driver module; This bias voltage driver module is to be electrically connected at this touch-control module and this control treatment module, through receiving the bias voltage control signal that this control treatment module is sent, and provides this touch-control module at least one driving voltage according to this.
6. the control system of touch-control module according to claim 1; It is characterized in that; More comprise an interface module; This interface module is to be electrically connected at this control treatment module and this host computer system, and wherein, this control treatment module is to transmit this touch-control integrated signal to this host computer system by this interface module.
7. the control system of touch-control module according to claim 1; It is characterized in that; This control treatment module more comprises a sequential generator, and this clock generator is in order to producing a clock signal, and this control treatment module is to produce this line selecting signal according to this clock signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910179202A CN102033636B (en) | 2009-09-29 | 2009-09-29 | Control system of touch module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910179202A CN102033636B (en) | 2009-09-29 | 2009-09-29 | Control system of touch module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102033636A CN102033636A (en) | 2011-04-27 |
| CN102033636B true CN102033636B (en) | 2012-08-29 |
Family
ID=43886615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910179202A Expired - Fee Related CN102033636B (en) | 2009-09-29 | 2009-09-29 | Control system of touch module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102033636B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207703B (en) * | 2013-04-03 | 2016-08-03 | 苏州佳世达光电有限公司 | Touching signals sends system, display device, multimedia system and correlation technique |
| CN105021913B (en) * | 2014-04-30 | 2017-10-13 | 晶宏半导体股份有限公司 | The detection method of touch-control display panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034332A (en) * | 2007-04-30 | 2007-09-12 | 友达光电股份有限公司 | Display device having touch-control input function |
| CN101101527A (en) * | 2007-07-31 | 2008-01-09 | 启攀微电子（上海）有限公司 | Electric resistance type touch screen control circuit |
| CN101286103A (en) * | 2008-06-13 | 2008-10-15 | 华硕电脑股份有限公司 | Touch control panel system and its control method and computer system |
-
2009
- 2009-09-29 CN CN200910179202A patent/CN102033636B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034332A (en) * | 2007-04-30 | 2007-09-12 | 友达光电股份有限公司 | Display device having touch-control input function |
| CN101101527A (en) * | 2007-07-31 | 2008-01-09 | 启攀微电子（上海）有限公司 | Electric resistance type touch screen control circuit |
| CN101286103A (en) * | 2008-06-13 | 2008-10-15 | 华硕电脑股份有限公司 | Touch control panel system and its control method and computer system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102033636A (en) | 2011-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10671196B2 (en) | Touch substrate, method for forming the same, and touch display device | |
| CN102214026B (en) | Touch control sensing system, electronic touch control device and touch control sensing method | |
| CN106095174A (en) | Electronic whiteboard actively pen and touch input system and driving method | |
| US20090211817A1 (en) | Touch panel device operable by multiple users and a method for controlling the touch panel | |
| CN102185613A (en) | Membrane keyboard scanning circuit, scanning method thereof and keyboard | |
| CN100435168C (en) | Touch pad with single-layer printed circuit board structure | |
| CN102033636B (en) | Control system of touch module | |
| CN102109916A (en) | Touch system, double-input touch system and touch sensing method | |
| CN102193704B (en) | Electromagnetic touch display | |
| CN102147685A (en) | Device and method for detecting capacitive touch panel | |
| CN101551722B (en) | Touch-control panel structure with signal processing chips | |
| CN101286103A (en) | Touch control panel system and its control method and computer system | |
| CN201072534Y (en) | Wireless keyboard with touch panel function | |
| CN201251769Y (en) | Device capable of locking keystroke | |
| US20110227837A1 (en) | Electromagnetic touch displayer | |
| CN103713782A (en) | Capacitive touch panel | |
| CN201440240U (en) | Multi-functional wireless keyboard | |
| CN202003338U (en) | Double-screen pressure sensitive electronic whiteboard | |
| CN202998073U (en) | Keyboard scanning circuit | |
| CN201845446U (en) | Electronic book reader | |
| CN103092383B (en) | Contactor control device and driving method thereof | |
| US20140362041A1 (en) | Touch apparatus and driving method thereof | |
| CN201364568Y (en) | Electronic whiteboard system adopting multifunctional digital keyboard | |
| CN217821536U (en) | KVM switching device supporting 4K resolution output | |
| CN205230008U (en) | Capacitive touch panel's independent button and connection structure of touch -control chip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20190929 |