CN105389070B - The method of touch-control IC, touch device and automatic detection touch screen channel - Google Patents
The method of touch-control IC, touch device and automatic detection touch screen channel Download PDFInfo
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- CN105389070B CN105389070B CN201511017693.6A CN201511017693A CN105389070B CN 105389070 B CN105389070 B CN 105389070B CN 201511017693 A CN201511017693 A CN 201511017693A CN 105389070 B CN105389070 B CN 105389070B
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- Prior art keywords
- touch
- control
- channel
- touch screen
- signal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Abstract
The present invention provides a kind of touch-control IC, the method in touch device and automatic detection touch screen channel, the touch-control IC includes mini program controlling unit, channel control unit and data storage cell, the access port of control unit issues signal to touch screen and receives the signal of return, thus judge driving port number and the corresponding access port in induction channels number and touch-control IC of touch screen actual use, and it is set in touch-control IC, pass through the driving channel of touch-control IC automatically scanning touch screen, the state of induction channels, number of channels is automatically configured, accuracy is high, realize the function of automatically configuring channel, to simplify configuration process.
Description
Technical field
The present invention relates to flat panel display technology fields, and in particular to a kind of touch-control IC, touch device and automatic detection touch
The method in screen driving channel and induction channels.
Background technique
Touch screen is capable of providing human-computer interaction circle between electronic system and user as a kind of special computer peripheral equipment
Face, and be widely applied in many fields, for example, in mobile phone, personal digital assistant (Personal Digital
Assistant, PDA), game machine, liquid crystal display (Liquid Crystal Display, LCD), plasma display
(Plasma Display Panel, PDP) etc..
Currently, touch screen mainly has several classes: electromagnetical type touch screen, capacitive touch screen, resistive touch screen and infrared
Line touch screen.Capacitive touch screen has multipoint-touch-technology compared with other touch screens, and positioning is more accurate reliable,
Have been widely used for the application fields such as mobile phone, notebook.
Driving electrodes and induction electrode made of transparent conductive material, the driving electrodes are provided in capacitive touch screen
The mutually insulated between induction electrode.When touching screen, since there are electric field, finger and the driving electricity in touch screen for human body
Coupled capacitor is formed between pole, induction electrode；Due to the capacitance variations of touch point, go out in the driving electrodes and induction electrode
The induced current for now flowing to touch point can accurately calculate the position of touch point by relevant calculation.
The capacitive touch screen for being typically different size is to reach same touch sensitivity, and (driving electrodes Tx is logical for port number
Road number and induction electrode Rx port number) it is often variant, therefore for same touch-control IC, various sizes of touch screen,
Port number needs are separately configured.
In the prior art generally using the following two kinds method come collocation channel number:
Method one: the port number of known touch screens controls touch-control IC respective channel configuration register through serial ports by host,
Corresponding channel attribute (Tx/Rx) and port number are set；
Method two: touch-control IC is internally provided with Tx, Rx port select register, is matched by Tx, Rx port select register
Set table options setting realize limited kind of Tx, Rx collocation mode, Tx, Rx port number used according to touch screen in practical application,
Register value is set in touch-control IC internal processes to realize the configuration in channel.
But all there are disadvantages for both methods.Method one is needed according to different size touch screens or actual use
Tx, Rx number of channels carry out manual configuration.There is optional channel configuration mode Tx, Rx quantity collocation mode of touch-control IC in method two
Limit, and it also needs first to determine that practical touch screen carries out channel selecting setting using port number again.
Summary of the invention
The purpose of the present invention is to provide the methods of a kind of touch-control IC, touch device and automatic detection touch screen channel, lead to
Cross driving channel and the induction channels of touch-control IC automatically scanning touch screen, the corresponding channel of configuration driven electrode, induction electrode and
Quantity, to realize the function of automatically configuring channel, to simplify configuration process.
To achieve the above object, the present invention provide a kind of touch-control IC, including mini program controlling unit, channel control unit with
And data storage cell；Wherein, the mini program controlling unit is for handling signal；The channel control unit for send and
It receives and the signal of the touch-control IC touch screen being connected and sends the mini program controlling unit to and handled；The number
It is used to store the information in the channel for the touch screen that the touch-control IC Auto-Sensing arrives according to storage unit.
Optionally, the touch-control IC further includes interface unit, for being connected with external equipment and carrying out signal transmission.
Optionally, several access ports are provided in the channel control unit, for the touch screen send and
Receive signal.
Optionally, the access port sends and receives signal for driving channel on the touch screen and to institute
The induction channels stated on touch screen send and receive signal.
The present invention also provides a kind of touching device, including touch screen interconnected and touch-control IC, the touch-control IC is used
Above-mentioned touch-control IC.
Optionally, tandem arrangement, the touch-control are pressed in the channel in the touch-control IC in access port and touch screen
First access port is connected with first driving channel or first induction channels in touch screen in IC.
Correspondingly, the present invention also provides a kind of automatic method in detection touch screen channel, using above-mentioned touching device,
Detecting step includes:
Step S01: touch-control IC initialization；
Step S02: setting first access port is driving end, remaining access port is receiving end；
Step S03: the driving end outputs signal to touch screen, and the receiving end receives signal, and logical according to sequencing
Cross channel control unit read signal；
Step S04: the access port of signal has been received in removal, and remaining access port is in order by first channel
Port is set as driving end, and rest channels port is receiving end；
Step S05: the driving end outputs signal to touch screen, and the receiving end receives signal, and logical according to sequencing
It crosses channel control unit and reads signal；
Step S06: repeating step S04 and step S05, until remaining access port can not receive signal, determines
Driving port number and the corresponding access port in induction channels number and touch-control IC of touch screen actual use；
Step S07: access port and quantity in setting touch-control IC.
Optionally, the interface unit receives the initializing signal of external equipment and is transmitted to the selective laser sintering list
Member completes the initialization of touch-control IC.
Optionally, the signal of driving end output is square-wave signal.
Optionally, the signal of driving end output is first transmitted to first driving channel or first sense
Answer channel.
Compared with prior art, the method for touch-control IC provided by the invention, touch device and automatic detection touch screen channel,
By the way that mini program controlling unit, channel control unit and data storage cell, the channel of control unit are arranged in touch-control IC
Port issues signal to touch screen and receives the signal of return, thus judges driving port number and the induction of touch screen actual use
Corresponding access port in port number and touch-control IC, and be set in touch-control IC, pass through touch-control IC automatically scanning touch screen
The state for driving channel, induction channels, automatically configures number of channels, and accuracy is high, realizes and automatically configures channel
Function, to simplify configuration process.
Detailed description of the invention
Fig. 1 is the schematic diagram of touch-control IC provided by the embodiment of the present invention one
Fig. 2 is the structural schematic diagram of touching device provided by the embodiment of the present invention two；
Fig. 3 is the flow chart for detecting the method in touch screen channel provided by the embodiment of the present invention three automatically.
Specific embodiment
To keep the contents of the present invention more clear and easy to understand, below in conjunction with Figure of description, the contents of the present invention are done into one
Walk explanation.Certainly the invention is not limited to the specific embodiment, and general replacement well known to those skilled in the art is also contained
Lid is within the scope of the present invention.
Secondly, the present invention has carried out detailed statement using schematic diagram, in detail that example of the present invention, for the ease of saying
Bright, schematic diagram is not partially enlarged in proportion to the general scale, should not be to this as restriction of the invention.
Core of the invention thought is, by be arranged in touch-control IC mini program controlling unit, channel control unit with
And data storage cell, the access port of control unit issue signal to touch screen and receive the signal of return, thus judgement touching
Driving port number and the corresponding access port in induction channels number and touch-control IC of screen actual use are touched, and is set in touch-control IC
In, by the driving channel of touch-control IC automatically scanning touch screen, the state of induction channels, number of channels is automatically configured,
Accuracy is high, realizes the function of automatically configuring channel, so that simplifying configuration process achievees the purpose that flexible Application.
[embodiment one]
Fig. 1 is the schematic diagram of touch-control IC provided by the embodiment of the present invention one, as shown in Figure 1, touch-control IC includes: microprogram
Control unit (MCU) 1, channel control unit 2, data storage cell 3 and interface unit 4；Wherein, the selective laser sintering list
Member 1 is for handling signal；The channel control unit 2 for send and receive with the signal of the touch-control IC touch screen being connected simultaneously
The mini program controlling unit is sent to be handled；The data storage cell 3 is for storing the touch-control IC Auto-Sensing
The information in the channel of the touch screen arrived；The interface unit 4 with external equipment for being connected and carrying out signal transmission.
In the present embodiment, it is provided with several access ports TR1, TR2 ... TRm in the channel control unit 2, is used for
It is sent and received signal to the touch screen.The access port have it is difunctional, both can be used on the touch screen
Driving channel sends and receives signal, and the induction channels that can be used on the touch screen send and receive signal.
The channel control unit 2 issues signal to the touch screen by access port, then passes through the touch
The signal in the channel detected is transmitted to remaining channel of channel control unit 2 by the driving channel of screen and induction channels again
The signal received is transmitted to the mini program controlling unit 1 by port, the channel control unit 2, by the microprogram control
Unit 1 processed is handled, and transmits a signal to the data storage cell 3, by its storage, is touched by touch-control IC automatically scanning
The driving channel of screen, the state of induction channels are touched, number of channels is automatically configured, accuracy is high, realizes and automatically configures
The function in channel, to simplify configuration process.
[embodiment two]
The present embodiment provides a kind of touching device, including touch screen interconnected and touch-control IC, the touch-control IC is used
Touch-control IC described in embodiment one.
Shown in referring to figure 2., the touching device includes touch screen 10 and touch-control IC20 interconnected, the touch screen
There is driving channel Tx and induction channels Rx on 10, drive channel Tx exit and induction channels Rx exit with it is described
The access port TRx of channel control unit 2 is connected, by access port in the touch-control IC20 and the channel in the touch screen
Arranged by tandem, as shown in Fig. 2, access port is respectively TR1 to TRm from top to bottom in the touch-control IC20,
It is respectively T1 to T4 that channel is driven in the touch screen from top to bottom, and induction channels are respectively R1 to R6 from right to left.It needs
Bright, it not is that uniquely, can also arrange or arrange from top to bottom from left to right, but be the need for one that this, which puts in order,
Fixed sequence.Preferably, in the touch-control IC20 in first access port TR1 and touch screen 10 first driving channel T1 or
First induction channels R1 is connected.In the present embodiment, first access port TR1 of the touch-control IC and first driving are logical
Road T1 is connected.
With the touch-control IC in embodiment one in the touch device of the present embodiment, therefore pass through touch-control IC automatically scanning touch screen
Driving channel, induction channels state, number of channels is automatically configured, accuracy is high, realizes and automatically configures channel
Function, thus simplify configuration process.
[embodiment three]
The present embodiment provides a kind of methods in automatic detection touch screen channel, are filled using touch-control described in embodiment two
It sets, shown referring to figure 3., detecting step includes:
Step S01: touch-control IC initialization；
Step S02: setting first access port is driving end, remaining access port is receiving end；
Step S03: the driving end outputs signal to touch screen, and the receiving end receives signal, and logical according to sequencing
It crosses channel control unit and reads signal；
Step S04: the access port of signal has been received in removal, and remaining access port is in order by first passage end
Mouth is set as driving end, and rest channels port is receiving end；
Step S05: the driving end outputs signal to touch screen, and the receiving end receives signal, and logical according to sequencing
It crosses channel control unit and reads signal；
Step S06: repeating step S04 and step S05, until remaining access port can not receive signal, determines
Driving port number and the corresponding access port in induction channels number and touch-control IC of touch screen actual use；
Step S07: access port and quantity in setting touch-control IC.
Specifically, the interface unit 4 receives the initializing signal of external equipment and is transmitted to described in step S01
Mini program controlling unit 1 completes the initialization of touch-control IC.
In step S02, it is driving end that first access port T1, which is arranged, remaining access port is receiving end.
In step S03, first access port TR1 and first driving channel T1 phase in touch screen in the touch-control IC
Connection, therefore, the square-wave signal of the driving end T1 output are first transmitted to first driving channel T1, i.e. automatically scanning is from T1
Start, until R6.The receiving end receives the signal passed back from touch screen, is controlled according to the sequencing of the receiving end by channel
Unit 2 processed reads signal.It is understood that only the overlapping place in driving channel and induction channels can just sense voltage data,
Just there is signal to be transmitted to receiving end.
In step S04, the access port of signal is had been received in removal, and remaining access port is in order by first
Access port is set as driving end (such as TRx), and rest channels port is receiving end.
Step S05 is similar with step S03, and the square-wave signal of the driving end Tx output is first transmitted to the first driving channel
T1, automatically scanning is since T1, until R6.The receiving end receives the signal passed back from touch screen, according to the elder generation of the receiving end
Sequence reads signal by channel control unit 2 afterwards.
In step S06, step S04 and step S05 is repeated, until remaining access port can not receive signal,
Thereby determine that driving port number and the corresponding access port in induction channels number and touch-control IC of touch screen actual use.
In step S07, touch-control IC sets access port and quantity in touch-control IC by the channel control unit 2,
And this signal is transmitted to the mini program controlling unit 1 by the channel control unit 2, by the mini program controlling unit 1
It carries out being processed and transmitted to the data storage cell 3, the data storage cell 3 stores relevant information, to complete automatic
Scanning.
In conclusion the method for touch-control IC provided by the invention, touch device and automatic detection touch screen channel, by
Mini program controlling unit, channel control unit and data storage cell be set in touch-control IC, the access port of control unit to
Touch screen issues signal and receives the signal of return, thus judges the driving port number and induction channels number of touch screen actual use
And corresponding access port in touch-control IC, and be set in touch-control IC, it is logical by the driving of touch-control IC automatically scanning touch screen
The state in road, induction channels, automatically configures number of channels, and accuracy is high, realizes the function of automatically configuring channel, from
And simplify configuration process.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (8)
1. a kind of touch-control IC, which is characterized in that including mini program controlling unit, channel control unit and data storage cell；
Wherein, the mini program controlling unit is for handling signal；Several access ports, institute are provided in the channel control unit
It states channel control unit and signal is issued to touch screen by the access port, driving channel and induction by the touch screen
The signal in the channel detected, is transmitted to remaining access port of the channel control unit by channel, and is sent to described
Mini program controlling unit is handled, and the driving port number and induction channels number of the touch screen actual use are judged with this；Institute
State the signal in channel of the data storage cell for storing the touch screen that the touch-control IC Auto-Sensing arrives.
2. touch-control IC as described in claim 1, which is characterized in that the touch-control IC further includes interface unit, is used for and outside
Equipment is connected and carries out signal transmission.
3. a kind of touching device, including touch screen interconnected and touch-control IC, which is characterized in that the touch-control IC uses right
It is required that touch-control IC described in any one of 1~2.
4. touching device as claimed in claim 3, which is characterized in that logical in access port and touch screen in the touch-control IC
Tandem arrangement is pressed in road, first access port and first driving channel in touch screen or first in the touch-control IC
Induction channels are connected.
5. a kind of automatic method in detection touch screen channel, which is characterized in that using touching device described in claim 3 or 4,
Its detecting step includes:
Step S01: touch-control IC initialization；
Step S02: first access port of setting is driving end, remaining access port is receiving end；
Step S03: the driving end outputs signal to touch screen, and the receiving end receives signal, and according to sequencing by leading to
Road control unit reads signal；
Step S04: the access port of signal has been received in removal, and remaining access port is in order by first access port
It is set as driving end, rest channels port is receiving end；
Step S05: the driving end outputs signal to touch screen, and the receiving end receives signal, and according to sequencing by leading to
Road control unit reads signal；
Step S06: repeating step S04 and step S05, until remaining access port can not receive signal, determines and touches
Shield driving port number and the corresponding access port in induction channels number and touch-control IC of actual use；
Step S07: access port and quantity in setting touch-control IC.
6. the method in automatic detection touch screen channel as claimed in claim 5, which is characterized in that interface unit receives external set
Standby initializing signal is simultaneously transmitted to the mini program controlling unit, completes the initialization of touch-control IC.
7. the method in automatic detection touch screen channel as claimed in claim 5, which is characterized in that the letter of driving end output
Number be square-wave signal.
8. the method in automatic detection touch screen channel as claimed in claim 5, which is characterized in that the letter of driving end output
Number it is first transmitted to first driving channel or first induction channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017693.6A CN105389070B (en) | 2015-12-29 | 2015-12-29 | The method of touch-control IC, touch device and automatic detection touch screen channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
|---|---|
| CN105389070A CN105389070A (en) | 2016-03-09 |
| CN105389070B true CN105389070B (en) | 2019-02-22 |
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| CN201511017693.6A Active 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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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 |
-
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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| Publication number | Publication date |
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| CN105389070A (en) | 2016-03-09 |
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