CN103135874B - Scan method, device, processor and electronic equipment towards projection-type touch screen - Google Patents

Scan method, device, processor and electronic equipment towards projection-type touch screen Download PDF

Info

Publication number
CN103135874B
CN103135874B CN201310025282.6A CN201310025282A CN103135874B CN 103135874 B CN103135874 B CN 103135874B CN 201310025282 A CN201310025282 A CN 201310025282A CN 103135874 B CN103135874 B CN 103135874B
Authority
CN
China
Prior art keywords
signal
pumping signal
touch screen
sending
type touch
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.)
Active
Application number
CN201310025282.6A
Other languages
Chinese (zh)
Other versions
CN103135874A (en
Inventor
李立华
卢冰峰
李琛
吕连国
徐怀懿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dun Tai Electronics Co., Ltd.
Original Assignee
Dun Tai Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dun Tai Electronics Co Ltd filed Critical Dun Tai Electronics Co Ltd
Priority to CN201310025282.6A priority Critical patent/CN103135874B/en
Publication of CN103135874A publication Critical patent/CN103135874A/en
Application granted granted Critical
Publication of CN103135874B publication Critical patent/CN103135874B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Position Input By Displaying (AREA)

Abstract

The embodiment of the invention discloses a kind of scan method towards projection-type touch screen, device, processor and electronic equipment, wherein scan method includes: in the touch panel scanning moment set, sending pumping signal at least two-way transmitting terminal TX, each pumping signal is different orthogonal signalling；All receiving terminal RX receive simultaneously described at least two-way TX send signal；Each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, obtain the information that each TX carries and obtain scanning result.The embodiment of the present invention is chosen for different orthogonal signalling in TX passage at least two-way and the pumping signal of sending side participation transmitted in parallel, reception side signal is carried out relevant to received each road signal, utilizing correlation between orthogonality signal is the principle of zero, filter out the signal of each road TX, and obtain the information that each road TX carries and judge to touch the position occurred, it is achieved thereby that shorten the technique effect of sweep time.

Description

Scan method, device, processor and electronic equipment towards projection-type touch screen
Technical field
The present invention relates to mobile communication technology field, more particularly, it relates to a kind of scanning towards projection-type touch screen Method, device, processor and electronic equipment.
Background technology
In-cell refers to the technology being embedded in liquid crystal pixel by touch panel function, uses in-cell technology to realize The slimming of panel and lightweight.
Existing in-cell technology needs touch panel and LCD are carried out Time share scanning, prevents LCD scanning from bringing The identification to touch signal of the influence of noise touch panel.As it is shown in figure 1, a kind of sweep time in existing in-cell technology Allocation example, the time for LCD scanning is 10ms, and the time for touch panel scanning is 6ms.
But, along with LCD resolution and the raising of refresh rate, the time of touch panel scanning is compressed, and is touched The size of panel incrementally increases, and needs longer sweep time, so the screen scanning technology in existing in-cell technology Exist and need the technical need improving touch panel scanning speed badly.
Summary of the invention
In view of this, the present invention provides a kind of scan method towards projection-type touch screen, device, processor and electronics to set Standby, to realize improving the technical purpose of touch panel scanning speed.
On the one hand, the embodiment of the invention discloses:
A kind of scan method towards projection-type touch screen, including:
In the touch panel scanning moment set, sending pumping signal at least two-way transmitting terminal TX, each pumping signal is Different orthogonal signalling；
All receiving terminal RX receive simultaneously described at least two-way TX send signal；
Each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, obtain the information that each TX carries and obtain To scanning result.
Alternatively, send pumping signal at least two-way transmitting terminal TX to include:
Pumping signal is sent to all transmitting terminal TX.
On the other hand, the embodiment of the invention discloses:
A kind of scanning means towards projection-type touch screen, including:
Pumping signal sending module, in the touch panel scanning moment set, sending at least two-way transmitting terminal TX Pumping signal, each pumping signal is different orthogonal signalling；
Receive control module, for control all receiving terminal RX receive simultaneously described at least two-way TX send signal；
Correlation computations module, for each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, acquisition The information that each TX carries obtains scanning result.
Another aspect, the embodiment of the invention discloses:
A kind of controller towards projection-type touch screen, including: processor and memorizer, described processor reads and performs Instruction in described memorizer, the instruction in described memorizer includes:
Pumping signal sending module, in the touch panel scanning moment set, sending at least two-way transmitting terminal TX Pumping signal, each pumping signal is different orthogonal signalling；
Receive control module, for control all receiving terminal RX receive simultaneously described at least two-way TX send signal；
Correlation computations module, for each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, acquisition The information that each TX carries obtains scanning result.
Another further aspect, the embodiment of the invention discloses:
A kind of electronic equipment towards projection-type touch screen, including:
The above-mentioned controller towards projection-type touch screen.
From above-mentioned technical scheme it can be seen that the embodiment of the present invention is under the scene towards projection-type touch screen, for In the scanning process of touch panel, the TX passage participating in transmitted in parallel in sending side is at least two-way, or optional whole TX passage Being transmitted, pumping signal is chosen for different orthogonal signalling simultaneously, and with received each road signal, reception side signal is carried out phase Closing, utilizing correlation between orthogonality signal is the principle of zero, filters out the signal of each road TX, and obtains the letter that each road TX carries Breath judges to touch the position occurred, it is achieved thereby that shorten the technique effect of sweep time.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is to distribute schematic diagram a kind of existing sweep time towards projection-type touch screen disclosed by the invention；
Fig. 2 is a kind of scan method flow chart towards projection-type touch screen disclosed in the embodiment of the present invention；
Fig. 3 is a kind of scanning means structural representation towards projection-type touch screen disclosed in the embodiment of the present invention；
Fig. 4 is a kind of scanning monitor structural representation towards projection-type touch screen disclosed in the embodiment of the present invention；
Fig. 5 is a kind of electronic equipment towards projection-type touch screen disclosed in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
Before the explanation carrying out embodiment, it should be explicitly made clear at this point, the embodiment in the present invention can be used for shortening projection-type In the technical scheme of the sweep time of capacitance plate, i.e. can be used for mutual tolerance type capacitance plate and from appearance type capacitance plate.
In conjunction with the content in background technology in this specification, the embodiment in the present invention is particularly well-suited to shorten in-cell For touch panel sweep time in technology, in the following example, mainly for the scanning side applying in-cell technology Method.
In existing in-cell technology, the scan method for touch panel is to scan transmitting terminal TX one by one, scans one Time used by TX is t, then the time of n TX of scanning is n*t, i.e. sweep time linearly increases along with the increase of TX number of channels Add；
When there being a transmitting terminal TX to send signal, the signal that receiving terminal receives is represented by: RX=K*TX, when there being multiple TX Send, then the signal that receiving terminal receives is represented by simultaneously:It is the number of the TX of transmitted in parallel, Ki It is the weight in in-cell technology corresponding to each TXi, but now, it is at which to send out that receiving terminal can not directly be told The position penetrated on end TX correspondence screen touches.
Thus, the embodiment of the invention discloses a kind of scan method towards projection-type touch screen, device, processor and electricity Subset, is having simultaneously in the case of scanning multichannel TX, and can be in the information entrained by the TX of receiving terminal identification each road, it is achieved carry The technical purpose of high touch panel scanning speed.
Fig. 2 shows a kind of scan method towards projection-type touch screen, including:
S21: in the touch panel scanning moment set, send pumping signal at least two-way transmitting terminal TX, respectively encourage letter Number it is different orthogonal signalling；
In the present embodiment, use the signal collection that orthogonal signal set sends as TX, participate in the TX of transmitted in parallel in sending side Obtaining different orthogonal signalling from orthogonal signalling concentration to be transmitted, the signal of transmission is transferred to receive side by Incell/TP.
Send TX at least two-way and send the implementation of pumping signal, be chosen as sending excitation letter to all transmitting terminal TX Number, all transmitting terminal TX transmitted in parallel, its required sweep time is identical for sweep time with a TX, it is only necessary to the t time is i.e. The TX scanning that n road is concurrent can be completed.
Described orthogonal signalling include time domain orthogonal signal and frequency domain orthogonal signalling, but are not limited thereto.
S22: all receiving terminal RX receive simultaneously described at least two-way TX send signal；
S23: each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after；
S24: obtain the information that each TX carries and obtain scanning result.
Utilize orthogonal signal set to send as sending while signal collection completes multichannel TX signal, examine respectively receiving side Go out:
As a example by discrete signal,RXi to TXj is carried out relevant, it may be assumed that
Σ N RXi * TXj = Σ N TXj * Σ n Ki * TXi = Σ n Σ N TXj * Ki * TXi ;
Utilize as i ≠ j, be zero owing to having the correlated results between orthogonality signal,May determine that, Correlated results be the TX passage of zero be not Current Scan passage, and as i=j, Understanding, whether this passage is Current Scan passage, by obtaining the signal entrained by this passage, it is judged that touch on this passage Touch.
It should be noted that can make the same derivation of equation for continuous signal, here is omitted.
Above example shows:
Each TX sends and meets orthogonality relation between signal, utilizes the orthogonality between signal that signal is filtrated to get each TX Signal, the most i.e. utilizeOrI ≠ j, utilizes RXi with TXi to carry out phase receiving side Close operation, i.e.OrThe most exactly, and not by it The TXi signal of correspondence, and the information carried in Acquisition channel is detected in the case of his passage interference.
Fig. 3 shows the scanning means towards projection-type touch screen, including:
Pumping signal sending module 31, in the touch panel scanning moment set, sending out at least two-way transmitting terminal TX Sending pumping signal, each pumping signal is different orthogonal signalling；
Alternatively, pumping signal sending module can be used for sending pumping signal to all transmitting terminal TX.
Receive control module 32, for control all receiving terminal RX receive simultaneously described at least two-way TX send signal；
Correlation computations module 33, for each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, obtain Take the information that each TX carries and obtain scanning result.
Said apparatus, for illustrating and the corresponding consistent functional module of each step of method in embodiment with Fig. 2, by such The device that functional module limits is as the functional module construction realizing technical solution of the present invention.Device embodiment described above is only Being only illustrative, the wherein said unit illustrated as separating component can be or may not be physically separate, Above-mentioned functions module can be or may not be physical location, i.e. may be located at a place, or can also be distributed to On multiple NEs.Those of ordinary skill in the art, in the case of not paying creative work, are i.e. appreciated that and implement.
Fig. 4 shows a kind of controller towards projection-type touch screen, including:
Processor 41 and memorizer 42, described processor reads and performs the instruction in described memorizer, described memorizer In instruction include:
Pumping signal sending module, in the touch panel scanning moment set, sending at least two-way transmitting terminal TX Pumping signal, each pumping signal is different orthogonal signalling；
Receive control module, for control all receiving terminal RX receive simultaneously described at least two-way TX send signal；
Correlation computations module, for each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, acquisition The information that each TX carries obtains scanning result.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, be permissible Instructing relevant hardware by computer program to complete, described program can be stored in computer read/write memory medium In, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic Dish, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc..
Fig. 5 shows a kind of electronic equipment towards projection-type touch screen, including: the controller in Fig. 4 correspondence embodiment.
Described electronic equipment is the touch-screen mobile phone towards projection-type touch screen, flat board, the notebook of integrated panel function Computer, and other electronic equipments of integrated panel function.
Described controller can be to control or indicate the control core that described electronic equipment carries out touch recognition and LCD shows Sheet, this chip includes processor and on-chip memory.
In sum:
The embodiment of the present invention, under the scene towards projection-type touch screen, in the scanning process of touch panel, is being sent out The TX passage sending side to participate in transmitted in parallel is at least two-way, or optional whole TX passage is transmitted simultaneously, and pumping signal is chosen For different orthogonal signalling, reception side signal is carried out relevant to received each road signal, utilize between orthogonality signal relevant Value is the principle of zero, filters out the signal of each road TX, and obtains the information that each road TX carries and judge to touch the position occurred, thus Achieve the technique effect shortening sweep time.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other The difference of embodiment, between each embodiment, identical similar portion sees mutually.

Claims (7)

1. the scan method towards projection-type touch screen, it is characterised in that including:
In the touch panel scanning moment set, sending pumping signal at least two-way transmitting terminal TX, each pumping signal is different Orthogonal signalling；
All receiving terminal RX receive simultaneously described at least two-way TX send signal；
Each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, obtain the information that each TX carries and swept Retouch result, to judge to touch the position occurred.
2. as claimed in claim 1 towards the scan method of projection-type touch screen, it is characterised in that at least two-way transmitting terminal TX sends pumping signal and includes:
Pumping signal is sent to all transmitting terminal TX.
3. the scanning means towards projection-type touch screen, it is characterised in that including:
Pumping signal sending module, in the touch panel scanning moment set, sending excitation at least two-way transmitting terminal TX Signal, each pumping signal is different orthogonal signalling；
Receive control module, for control all receiving terminal RX receive simultaneously described at least two-way TX send signal；
Correlation computations module, for each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, obtain each The information that TX carries obtains scanning result, to judge to touch the position occurred.
4. as claimed in claim 3 towards the scanning means of projection-type touch screen, it is characterised in that pumping signal sending module Include for sending pumping signal at least two-way transmitting terminal TX:
Pumping signal sending module is for sending pumping signal to all transmitting terminal TX.
5. the controller towards projection-type touch screen, it is characterised in that including: processor and memorizer, described processor Reading and perform the instruction in described memorizer, the instruction in described memorizer includes:
Pumping signal sending module, in the touch panel scanning moment set, sending excitation at least two-way transmitting terminal TX Signal, each pumping signal is different orthogonal signalling；
Receive control module, for control all receiving terminal RX receive simultaneously described at least two-way TX send signal；
Correlation computations module, for each receiving terminal RX is carried out to the signal that each TX sends respectively relevant after, obtain each The information that TX carries obtains scanning result, to judge to touch the position occurred.
6. as claimed in claim 5 towards the controller of projection-type touch screen, it is characterised in that the instruction in described memorizer In, pumping signal sending module is for sending pumping signal to all transmitting terminal TX.
7. the electronic equipment towards projection-type touch screen, it is characterised in that including:
The controller towards projection-type touch screen described in any one of claim 5-6.
CN201310025282.6A 2013-01-23 2013-01-23 Scan method, device, processor and electronic equipment towards projection-type touch screen Active CN103135874B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310025282.6A CN103135874B (en) 2013-01-23 2013-01-23 Scan method, device, processor and electronic equipment towards projection-type touch screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310025282.6A CN103135874B (en) 2013-01-23 2013-01-23 Scan method, device, processor and electronic equipment towards projection-type touch screen

Publications (2)

Publication Number Publication Date
CN103135874A CN103135874A (en) 2013-06-05
CN103135874B true CN103135874B (en) 2016-12-28

Family

ID=48495778

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310025282.6A Active CN103135874B (en) 2013-01-23 2013-01-23 Scan method, device, processor and electronic equipment towards projection-type touch screen

Country Status (1)

Country Link
CN (1) CN103135874B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104298383B (en) * 2013-07-15 2017-07-28 奇景光电股份有限公司 Touch-control system
CN109697402B (en) 2017-10-20 2020-10-16 华为技术有限公司 Fingerprint information acquisition method and fingerprint identification device
CN109144335B (en) * 2018-08-29 2019-09-20 基合半导体（宁波）有限公司 A kind of touch screen, detection method and mobile terminal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101840293A (en) * 2010-01-21 2010-09-22 宸鸿科技(厦门)有限公司 Scanning method for projected capacitive touch panels
CN102177493A (en) * 2008-08-07 2011-09-07 O·德拉姆 Optical control systems with modulated emitters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102177493A (en) * 2008-08-07 2011-09-07 O·德拉姆 Optical control systems with modulated emitters
CN101840293A (en) * 2010-01-21 2010-09-22 宸鸿科技(厦门)有限公司 Scanning method for projected capacitive touch panels

Also Published As

Publication number Publication date
CN103135874A (en) 2013-06-05

Similar Documents

Publication Publication Date Title
US20140368460A1 (en) Touch detection method and apparatus, and touch screen system
US20140028607A1 (en) Device for Digital Communication Through Capacitive Coupling
CN103941940A (en) Concurrent driving capacitive touch sensing device and transmission system
CN105898678B (en) A kind of matching method and electronic equipment
DE102014113800A1 (en) Touch detection system, method of driving the same and user interface with the system
CN103365505A (en) Sensing method and device for improving noise interference of capacitive touch device
CN104656973A (en) Coordinate input device and mobile terminal
CN103294258A (en) Hybrid touch screen device and method for operating the same
CN106951767A (en) Solve lock control method and Related product
CN107180179A (en) Solve lock control method and Related product
CN103135874B (en) Scan method, device, processor and electronic equipment towards projection-type touch screen
CN104536576B (en) Same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave
CN109388301A (en) Screenshot method and relevant apparatus
CN101957683A (en) Dual-mode input device and dual-mode input method
CN107003762A (en) position detecting device
CN105677064B (en) capacitance pen
DE112018006174T5 (en) Active stylus device and method
KR101830739B1 (en) Touch panel, mobile terminal and wireless input apparatus
CN104516697A (en) Information processing method and electronic device
CN103455232A (en) Electromagnetic signal control method, electromagnetic induction detecting device and electromagnetic handwriting system
TWI671662B (en) Stylus pen and mobile system using the same
CN104079024A (en) Active type touch pen and charging method thereof
CN106598328B (en) A kind of touch control method and device of the terminal with pressure sensitive layer
CN102799286A (en) Input method and device for handwriting pen
CN105700756A (en) Information input apparatus and information input method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: FOCAL TECH ELECTRONICS TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: FOCALTECH SYSTEMS CO., LTD.

Effective date: 20150821

C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20150821

Address after: Mailbox No. 2804 Cayman Islands cricket square Dakaiman KY1-1112, green willow four storey building

Applicant after: Dun Tai Electronics Co., Ltd.

Address before: Grand Cayman George County South Church Street agrand Mansion

Applicant before: FocalTech Systems Co., Ltd.

C14 Grant of patent or utility model
GR01 Patent grant