CN105389070A - Touch IC (Integrated Circuit), touch device and method for automatically detecting touch screen channel - Google Patents
Touch IC (Integrated Circuit), touch device and method for automatically detecting touch screen channel Download PDFInfo
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- CN105389070A CN105389070A CN201511017693.6A CN201511017693A CN105389070A CN 105389070 A CN105389070 A CN 105389070A CN 201511017693 A CN201511017693 A CN 201511017693A CN 105389070 A CN105389070 A CN 105389070A
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- touch
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- 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)
Abstract
The invention provides a touch IC (Integrated Circuit), a touch device and a method for automatically detecting a touch screen channel. The touch IC comprises a microprogram control unit, a channel control unit and a data storage unit, wherein the channel port of the control unit emits a signal to the touch screen and receives a returned signal, so that the number of driving channels practically used by the touch screen, the number of induction channels practically used by the touch screen and the corresponding channel ports in the touch IC are judged and are set in the touch IC, the touch IC automatically scans the states of the driving channels and the induction channels of the touch screen, the number of the channels is automatically configured, accuracy is high, and a function of automatically configuring the channels is realized so as to simplify a configuration process.
Description
Technical field
The present invention relates to flat panel display technology field, be specifically related to a kind of touch-control IC, contactor control device and automatically detect the method that touch-screen drives passage and induction channels.
Background technology
Touch-screen is as a kind of special computer peripheral equipment, human-computer interaction interface between electronic system and user can be provided, and in widespread use in a lot of fields, such as, at mobile phone, personal digital assistant (PersonalDigitalAssistant, PDA), game machine, liquid crystal display (LiquidCrystalDisplay, LCD), plasma display (PlasmaDisplayPanel, PDP) etc.
At present, touch-screen mainly contains a few class: electromagnetical type touch screen, capacitive touch screen, resistive touch screen and infrared touch panel.Capacitive touch screen, compared with other touch-screen, has multipoint-touch-technology, and its location is more precisely reliable, has been widely used in the application such as mobile phone, notebook.
Drive electrode and induction electrode that transparent conductive material makes is provided with, mutually insulated between described drive electrode and induction electrode in capacitive touch screen.When touch screen, because human body exists electric field, the drive electrode in finger and touch-screen, form coupling capacitance between induction electrode; Due to the capacitance variations of touch point, in described drive electrode and induction electrode, there is the induction current flowing to touch point, just accurately can be calculated the position of touch point by correlation computations.
The capacitive touch screen of usual different size is for reaching same touch sensitivity, its port number (drive electrode Tx port number and induction electrode Rx port number) is often variant, therefore for same touch-control IC, the touch-screen of different size, port number needs configuration separately.
In prior art, the general the following two kinds method that adopts carrys out collocation channel number:
Method one: the port number of known touch screens, controls touch-control IC respective channel configuration register by main frame through serial ports, arranges respective channel attribute (Tx/Rx) and port number;
Method two: touch-control IC inside is provided with Tx, Rx port select register, arranged by Tx, Rx port select register allocation list option and realize limited kind of Tx, Rx collocation mode, its Tx, Rx port number used according to touch-screen in practical application, sets register value to realize the configuration of passage in touch-control IC internal processes.
But these two kinds of methods all have shortcoming.Method one needs to carry out manual configuration according to different size touch-screen or actual Tx, Rx number of channels used.In method two, touch-control IC selectable channel configuration mode Tx, Rx quantity collocation mode is limited, and it needs first to determine that actual touch screen uses port number to carry out channel selecting setting more equally.
Summary of the invention
The object of the present invention is to provide a kind of touch-control IC, contactor control device and the automatic method detecting touch-screen passage, by driving passage and the induction channels of touch-control IC autoscan touch-screen, the passage that configuration driven electrode, induction electrode are corresponding and quantity, to realize the function of automatic collocation channel, thus simplify layoutprocedure.
For achieving the above object, the invention provides a kind of touch-control IC, comprise mini program controlling unit, channel control unit and data storage cell; Wherein, described mini program controlling unit is for the treatment of signal; Described channel control unit is for sending with the signal receiving the touch-screen be connected with described touch-control IC and sending described mini program controlling unit to and process; The information of the passage of touch-screen of described data storage cell for storing described touch-control IC Auto-Sensing and arriving.
Optionally, described touch-control IC also comprises interface unit, for being connected with external unit and carrying out Signal transmissions.
Optionally, in described channel control unit, be provided with several access ports, for sending and Received signal strength to described touch-screen.
Optionally, described access port on described touch-screen driving passage send and Received signal strength and on described touch-screen induction channels transmission and Received signal strength.
The present invention also provides a kind of touching device, comprises interconnective touch-screen and touch-control IC, and described touch-control IC adopts above-mentioned touch-control IC.
Optionally, the passage in described touch-control IC in access port and touch-screen all by tandem arrangement, in described touch-control IC first access port with in touch-screen first drive passage or first induction channels to be connected.
Accordingly, the present invention also provides a kind of method of automatic detection touch-screen passage, and adopt above-mentioned touching device, its detecting step comprises:
Step S01: touch-control IC initialization;
Step S02: arranging described first access port is drive end, and remaining access port is receiving end;
Step S03: described drive end outputs signal to touch-screen, described receiving end acknowledge(ment) signal, and according to sequencing by channel control unit read signal;
Step S04: remove the access port having received signal, first access port is set to drive end by remaining access port in order, and rest channels port is receiving end;
Step S05: described drive end outputs signal to touch-screen, described receiving end Received signal strength, and read signal according to sequencing by channel control unit;
Step S06: repeat step S04 and step S05, until remaining access port all cannot receive signal, determine the access port that the driving port number of the actual use of touch-screen is corresponding with induction channels number and touch-control IC;
Step S07: the access port in setting touch IC and quantity.
Optionally, described interface unit receives the initializing signal of external unit and transfers to described mini program controlling unit, completes the initialization of touch-control IC.
Optionally, the signal that described drive end exports is square-wave signal.
Optionally, first the signal that described drive end exports transfers to described first and drives passage or described first induction channels.
Compared with prior art, touch-control IC provided by the invention, the method of contactor control device and automatically detection touch-screen passage, by arranging mini program controlling unit in touch-control IC, channel control unit and data storage cell, the access port of control module sends signal to touch-screen and also receives the signal returned, judge the access port that the driving port number of the actual use of touch-screen is corresponding with induction channels number and touch-control IC thus, and be set in touch-control IC, by the driving passage of touch-control IC autoscan touch-screen, the state of induction channels, number of channels is configured automatically, accuracy is high, achieve the function of automatic collocation channel, thus simplification layoutprocedure.
Accompanying drawing explanation
The schematic diagram of the touch-control IC that Fig. 1 provides for the embodiment of the present invention one
The structural representation of the touching device that Fig. 2 provides for the embodiment of the present invention two;
The process flow diagram of the method for the automatic detection touch-screen passage that Fig. 3 provides for the embodiment of the present invention three.
Embodiment
For making content of the present invention clearly understandable, below in conjunction with Figure of description, content of the present invention is described further.Certain the present invention is not limited to this specific embodiment, and the general replacement known by those skilled in the art is also encompassed in protection scope of the present invention.
Secondly, the present invention's detailed statement that utilized schematic diagram to carry out, when describing example of the present invention in detail, for convenience of explanation, schematic diagram, should to this as restriction of the present invention not according to general ratio partial enlargement.
Core concept of the present invention is, by arranging mini program controlling unit in touch-control IC, channel control unit and data storage cell, the access port of control module sends signal to touch-screen and also receives the signal returned, judge the access port that the driving port number of the actual use of touch-screen is corresponding with induction channels number and touch-control IC thus, and be set in touch-control IC, by the driving passage of touch-control IC autoscan touch-screen, the state of induction channels, number of channels is configured automatically, accuracy is high, achieve the function of automatic collocation channel, thus simplify the object that layoutprocedure reaches flexible Application.
[embodiment one]
The schematic diagram of the touch-control IC that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, touch-control IC comprises: mini program controlling unit (MCU) 1, channel control unit 2, data storage cell 3 and interface unit 4; Wherein, described mini program controlling unit 1 is for the treatment of signal; Described channel control unit 2 is for sending with the signal receiving the touch-screen be connected with touch-control IC and sending described mini program controlling unit to and process; The information of the passage of touch-screen of described data storage cell 3 for storing described touch-control IC Auto-Sensing and arriving; Described interface unit 4 is for being connected with external unit and carrying out Signal transmissions.
In the present embodiment, in described channel control unit 2, be provided with several access ports TR1, TR2 ... TRm, for sending and Received signal strength to described touch-screen.Described access port has difunctional, both may be used for sending and Received signal strength to the driving passage on described touch-screen, also may be used for sending and Received signal strength to the induction channels on described touch-screen.
Described channel control unit 2 sends signal by access port to described touch-screen, then through driving passage and the induction channels of described touch-screen, the signal of the passage detected is transferred to again remaining access port of channel control unit 2, the Signal transmissions extremely described mini program controlling unit 1 that described channel control unit 2 will receive, processed by described mini program controlling unit 1, and by Signal transmissions to described data storage cell 3, stored by it, by the driving passage of touch-control IC autoscan touch-screen, the state of induction channels, number of channels is configured automatically, accuracy is high, achieve the function of automatic collocation channel, thus simplification layoutprocedure.
[embodiment two]
The present embodiment provides a kind of touching device, comprises interconnective touch-screen and touch-control IC, and described touch-control IC adopts the touch-control IC described in embodiment one.
Please refer to shown in Fig. 2, described touching device comprises interconnective touch-screen 10 and touch-control IC20, described touch-screen 10 has and drives passage Tx and induction channels Rx, the exit of passage Tx and the exit of induction channels Rx is driven to be connected with the access port TRx of described channel control unit 2, passage in access port in described touch-control IC20 and described touch-screen is all arranged by tandem, as shown in Figure 2, in described touch-control IC20, access port is respectively TR1 to TRm from top to bottom, passage is driven to be respectively T1 to T4 from top to bottom in described touch-screen, induction channels is respectively R1 to R6 from right to left.It should be noted that, this puts in order not is unique, yet can arrange from top to bottom or arrange from left to right, but need certain order.Preferably, in described touch-control IC20 first access port TR1 with in touch-screen 10 first drive a passage T1 or first induction channels R1 to be connected.In the present embodiment, first access port TR1 of described touch-control IC drives passage T1 to be connected with first.
There is in the contactor control device of the present embodiment the touch-control IC in embodiment one, therefore by the driving passage of touch-control IC autoscan touch-screen, the state of induction channels, automatically configure number of channels, accuracy is high, achieve the function of automatic collocation channel, thus simplify layoutprocedure.
[embodiment three]
The present embodiment provides a kind of method of automatic detection touch-screen passage, and adopt the contactor control device described in embodiment two, please refer to shown in Fig. 3, its detecting step comprises:
Step S01: touch-control IC initialization;
Step S02: arranging described first access port is drive end, and remaining access port is receiving end;
Step S03: described drive end outputs signal to touch-screen, described receiving end Received signal strength, and read signal according to sequencing by channel control unit;
Step S04: remove the access port having received signal, first passage port is set to drive end by remaining access port in order, and rest channels port is receiving end;
Step S05: described drive end outputs signal to touch-screen, described receiving end Received signal strength, and read signal according to sequencing by channel control unit;
Step S06: repeat step S04 and step S05, until remaining access port all cannot receive signal, determine the access port that the driving port number of the actual use of touch-screen is corresponding with induction channels number and touch-control IC;
Step S07: the access port in setting touch IC and quantity.
Concrete, in step S01, described interface unit 4 receives the initializing signal of external unit and transfers to described mini program controlling unit 1, completes the initialization of touch-control IC.
In step S02, arranging described first access port T1 is drive end, and remaining access port is receiving end.
In step S03, in described touch-control IC first access port TR1 with in touch-screen first drive passage T1 to be connected, therefore, first the square-wave signal that described drive end T1 exports transfers to first and drives passage T1, and namely autoscan is from T1, until R6.Described receiving end receives the signal passed back from touch-screen, and the sequencing according to described receiving end reads signal by channel control unit 2.Be understandable that to only have and drive passage and the overlapping place of induction channels just voltage data can be sensed, just have Signal transmissions to receiving end.
In step S04, remove the access port having received signal, first access port is set to drive end (such as TRx) by remaining access port in order, and rest channels port is receiving end.
Step S05 and step S03 is similar, and first the square-wave signal that described drive end Tx exports transfers to the first driving passage T1, and autoscan is from T1, until R6.Described receiving end receives the signal passed back from touch-screen, and the sequencing according to described receiving end reads signal by channel control unit 2.
In step S06, repeat step S04 and step S05, until remaining access port all cannot receive signal, determine the access port that the driving port number of the actual use of touch-screen is corresponding with induction channels number and touch-control IC thus.
In step S07, touch-control IC is by the access port in described channel control unit 2 setting touch IC and quantity, and described channel control unit 2 is by this Signal transmissions extremely described mini program controlling unit 1, undertaken processing by described mini program controlling unit 1 and transfer to described data storage cell 3, described data storage cell 3 stores relevant information, thus completes autoscan.
In sum, touch-control IC provided by the invention, the method of contactor control device and automatically detection touch-screen passage, by arranging mini program controlling unit in touch-control IC, channel control unit and data storage cell, the access port of control module sends signal to touch-screen and also receives the signal returned, judge the access port that the driving port number of the actual use of touch-screen is corresponding with induction channels number and touch-control IC thus, and be set in touch-control IC, by the driving passage of touch-control IC autoscan touch-screen, the state of induction channels, number of channels is configured automatically, accuracy is high, achieve the function of automatic collocation channel, thus simplification layoutprocedure.
Foregoing description is only the description to present pre-ferred embodiments, any restriction not to the scope of the invention, and any change that the those of ordinary skill in field of the present invention does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.
Claims (10)
1. a touch-control IC, is characterized in that, comprises mini program controlling unit, channel control unit and data storage cell; Wherein, described mini program controlling unit is for the treatment of signal; Described channel control unit is for sending with the signal receiving the touch-screen be connected with described touch-control IC and sending described mini program controlling unit to and process; The signal of the passage of touch-screen of described data storage cell for storing described touch-control IC Auto-Sensing and arriving.
2. touch-control IC as claimed in claim 1, it is characterized in that, described touch-control IC also comprises interface unit, for being connected with external unit and carrying out Signal transmissions.
3. touch-control IC as claimed in claim 1, is characterized in that, be provided with several access ports in described channel control unit, for sending and Received signal strength to described touch-screen.
4. touch-control IC as claimed in claim 3, is characterized in that, described access port is used for sending and Received signal strength and to the induction channels transmission on described touch-screen and Received signal strength to the driving passage on described touch-screen.
5. a touching device, comprises interconnective touch-screen and touch-control IC, it is characterized in that, described touch-control IC adopts the touch-control IC according to any one of Claims 1 to 4.
6. touching device as claimed in claim 5, it is characterized in that, passage in described touch-control IC in access port and touch-screen all by tandem arrangement, in described touch-control IC first access port with in touch-screen first drive passage or first induction channels to be connected.
7. automatically detect a method for touch-screen passage, it is characterized in that, adopt the touching device described in claim 5 or 6, its detecting step comprises:
Step S01: touch-control IC initialization;
Step S02: arranging described first access port is drive end, and remaining access port is receiving end;
Step S03: described drive end outputs signal to touch-screen, described receiving end acknowledge(ment) signal, and read signal according to sequencing by channel control unit;
Step S04: remove the access port having received signal, first access port is set to drive end by remaining access port in order, and rest channels port is receiving end;
Step S05: described drive end outputs signal to touch-screen, described receiving end Received signal strength, and read signal according to sequencing by channel control unit;
Step S06: repeat step S04 and step S05, until remaining access port all cannot receive signal, determine the access port that the driving port number of the actual use of touch-screen is corresponding with induction channels number and touch-control IC;
Step S07: the access port in setting touch IC and quantity.
8. the method automatically detecting touch-screen passage as claimed in claim 7, is characterized in that, described interface unit receives the initializing signal of external unit and transfers to described mini program controlling unit, completes the initialization of touch-control IC.
9. the method automatically detecting touch-screen passage as claimed in claim 7, is characterized in that, the signal that described drive end exports is square-wave signal.
10. the method automatically detecting touch-screen passage as claimed in claim 7, is characterized in that, first the signal that described drive end exports transfers to described first and drive passage or described first induction channels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511017693.6A CN105389070B (en) | 2015-12-29 | 2015-12-29 | The method of touch-control IC, touch device and automatic detection touch screen channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511017693.6A CN105389070B (en) | 2015-12-29 | 2015-12-29 | The method of touch-control IC, touch device and automatic detection touch screen channel |
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| CN105389070A true CN105389070A (en) | 2016-03-09 |
| CN105389070B CN105389070B (en) | 2019-02-22 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673155A (en) * | 2008-09-10 | 2010-03-17 | 苹果公司 | single-chip multi-stimulus sensor controller |
| CN101930314A (en) * | 2009-06-24 | 2010-12-29 | 奇景光电股份有限公司 | Touch control system in order to the control contact panel |
| CN102750038A (en) * | 2012-06-29 | 2012-10-24 | 苏州瀚瑞微电子有限公司 | Scanning method of touch control chip |
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2015
- 2015-12-29 CN CN201511017693.6A patent/CN105389070B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673155A (en) * | 2008-09-10 | 2010-03-17 | 苹果公司 | single-chip multi-stimulus sensor controller |
| CN101930314A (en) * | 2009-06-24 | 2010-12-29 | 奇景光电股份有限公司 | Touch control system in order to the control contact panel |
| CN102750038A (en) * | 2012-06-29 | 2012-10-24 | 苏州瀚瑞微电子有限公司 | Scanning method of touch control chip |
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| CN105389070B (en) | 2019-02-22 |
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