CN107831944A - Touch display system - Google Patents
Touch display system Download PDFInfo
- Publication number
- CN107831944A CN107831944A CN201711220369.3A CN201711220369A CN107831944A CN 107831944 A CN107831944 A CN 107831944A CN 201711220369 A CN201711220369 A CN 201711220369A CN 107831944 A CN107831944 A CN 107831944A
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- CN
- China
- Prior art keywords
- signal
- gain
- temperature
- electromagnetic screen
- 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.)
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Classifications
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
-
- 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
- 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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
Abstract
The invention discloses a kind of touch display system, including：Electromagnetic screen, capacitance plate, display screen, host computer control module, temperature detecting module and electromagnetic screen control module；Electromagnetic screen is arranged under capacitance plate, and display screen is arranged under electromagnetic screen；Temperature detecting module, the temperature to be worked for detecting touch display system under current operating environment, and export the temperature corresponding temperature data and give electromagnetic screen control module；Electromagnetic screen control module, for according to the temperature data received, the gain factor of the writing signal received from electromagnetic screen is adjusted, the signal amplitude gain of the writing signal received to gain factor is corresponded into signal amplitude, and the writing signal after output gain is to host computer control module；Host computer control module, for receiving the writing signal after the gain, and send the writing signal received to display and carry out display written handwriting.Using the embodiment of the present invention, the situation for writing broken string under low temperature can be avoided to occur, improve writing sensitivity.
Description
Technical field
The present invention relates to multimedia technology field, more particularly to a kind of touch display system.
Background technology
In electric capacity+electromagnetic type interactive intelligent tablet computer, meeting flat board field, capacitance plate can be provided with simultaneously and electromagnetic screen is used for
The touch signal that touch control, wherein capacitance plate are used under without time writer receives, and electromagnetic screen is used under using time writer
The reception of touch signal.Capacitance plate under existing nano-silver thread technique can make electromagnetic wave in normal state through erosion
Nano-silver thread grid after quarter, the coil of the antenna plate of electromagnetic screen is set to receive the electromagnetic wave signal that time writer is sent, this
When electromagnetic screen do not influenceed normally to write by capacitance plate.
But when Intelligent flat is operated in sub-zero working environment, the correlation of nano-silver thread technique capacitance plate is special
Property is changed, and when the electromagnetic wave that time writer is sent passes through capacitance plate, the signal of subregion electromagnetic wave can be by capacitance plate
Decay weakens, and the signal weaker for causing the antenna plate of electromagnetic screen to receive, now shows as electromagnetic screen in the subregion of complete machine
Writing broken string.
The content of the invention
A kind of touch display system that the embodiment of the present invention proposes, the situation for writing broken string under low temperature can be avoided to occur,
Improve writing sensitivity.
The embodiment of the present invention provides a kind of touch display system, including：Electromagnetic screen, capacitance plate, display screen, host computer control mould
Block, temperature detecting module and electromagnetic screen control module；
The temperature detecting module, the temperature to be worked for detecting the touch display system under current operating environment,
And the temperature corresponding temperature data are exported to the electromagnetic screen control module；
The electromagnetic screen control module, for according to the temperature data received, adjusting the book received from electromagnetic screen
The gain factor of write signal, by the signal amplitude gain of the writing signal received to the gain factor to induction signal width
Degree, and the writing signal after output gain gives the host computer control module；
The host computer control module, passed for receiving the writing signal after the gain, and by the writing signal received
Give display and carry out display written handwriting.
Preferably, the temperature detecting module is temperature sensor.
Further, the electromagnetic screen control module includes signal conversion unit and micro-control unit；
The micro-control unit, for receiving the temperature data of the temperature detecting module output, according to the temperature received
Degrees of data, the gain factor that the signal conversion unit will be set is determined, export the gain factor and changed to the signal
Unit；
The signal conversion unit, for receiving the gain factor of the micro-control unit output, the increasing that will currently set
Beneficial multiple is adjusted to the gain factor received, and receives writing signal from the electromagnetic screen, according to currently set gain times
Signal amplitude corresponding to several signal amplitude gains to the currently set gain multiple to the writing signal, and export increasing
Writing signal after benefit gives the micro-control unit；
The micro-control unit, for giving the writing signal output after the gain received to the master machine control unit.
Further, the temperature data that the basis receives, the gain factor that the signal conversion unit is set is determined,
Specially：
According to the temperature data received, judge whether Temperature numerical corresponding to current time is more than preset temperature threshold value；
Preferably, the preset temperature threshold value is zero degrees celsius.
If, it is determined that the gain factor that the signal conversion unit will be set is the first gain factor；
If not, it is determined that the gain factor that the signal conversion unit will be set is the second gain factor；Wherein, it is described
Second gain factor is more than first gain factor.
Further, the touch display system also includes capacitance plate control module；
The capacitance plate control module, passed for receiving writing signal from the capacitance plate, and by the writing signal
The master machine control unit is given, so that the master machine control unit, which sends the writing signal to display, carries out display book
Write person's handwriting.
Further, the communication connection between the micro-control unit and the master machine control unit is USB connections, then institute
State micro-control unit to connect by the USB, give the writing signal output after the gain received to the master machine control unit.
Further, the writing signal includes the coordinate data of electromagnetic screen described in time writer touch-control.
Implement the embodiment of the present invention, have the advantages that：
A kind of touch display system provided in an embodiment of the present invention, mould is controlled in the electromagnetic screen of original touch display system
Increase a temperature detecting module in block, electromagnetic screen control module is adjusted to being received from electromagnetic screen by the temperature detected
The gain factor for the writing signal gain amplification arrived, and then, even if because temperature change causes the electricity made of nano-silver thread technique
Rong Ping changes characteristic so that and capacitance plate weakens through capacitance plate and reaches the electromagnetic wave signal of electromagnetic screen, but because of electromagnetic screen
Electromagnetic screen control module multiplication factor can be increased by the electromagnetic wave signal that capacitance plate weakens to receiving, can avoid
The situation that electromagnetic screen occurs writing broken string in subregion because of temperature change occurs.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of touch display system provided by the invention；
Fig. 2 is the structural representation of one embodiment of the electromagnetic screen control module of touch display system provided by the invention
Figure；
Fig. 3 is the structural representation of another embodiment of touch display system provided by the invention.
Embodiment
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
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
It is the structural representation of one embodiment of touch display system provided by the invention referring to Fig. 1；
The embodiment of the present invention provides a kind of touch display system, including：Electromagnetic screen 101, capacitance plate 102, display screen 103,
Host computer control module 104, temperature detecting module 105 and electromagnetic screen control module 106；The electromagnetic screen 101 is arranged on the electricity
Hold under screen 102, the display screen 103 is arranged under the electromagnetic screen 101；
The temperature detecting module 105, the temperature to be worked for detecting the touch display system under current operating environment
Degree, and the temperature corresponding temperature data are exported to the electromagnetic screen control module 106；Preferably, the temperature detecting module
105 be temperature sensor.
The electromagnetic screen control module 106, for according to the temperature data received, adjusting and being received from electromagnetic screen 101
The gain factor of the writing signal arrived, the signal amplitude gain of the writing signal received is believed to the gain factor is corresponding
Number amplitude, and the writing signal after output gain gives the host computer control module 104；
The host computer control module 104, for receiving the writing signal after the gain, and the writing signal that will be received
Send display to and carry out display written handwriting.
The embodiment of the present invention increases a temperature detecting module 105, preferably described temperature in electromagnetic screen control module 106
Detection module 105 is temperature sensor, the temperature that detection complete machine works under current operating environment, and the temperature number that will be detected
According to electromagnetic screen control module 106 is supplied to, electromagnetic screen control module 106 is according to the current operating temperature adjustment detected to receiving
The gain factor of the writing signal arrived so that different gain factors is performed under different temperature conditionss to amplify writing letter
Number, so as to even if because temperature change causes the capacitance plate 102 made of nano-silver thread technique to change characteristic so that capacitance plate
102 weaken through capacitance plate 102 and reach the electromagnetic wave signal of electromagnetic screen 101, but because the electromagnetic screen of electromagnetic screen 101 controls
Module 106 can increase multiplication factor to the electromagnetic wave signal weakened by capacitance plate 102 received, and can avoid electricity
The situation that magnetic cup 101 occurs writing broken string in subregion because of temperature change occurs.
Specifically, as shown in Fig. 2 the electromagnetic screen control module 106 includes signal conversion unit and micro-control unit；Letter
Number converting unit includes the function to signal amplification, is provided with fixed amplifier and adjustable amplifier or only sets adjustable amplifier.
Wherein,
The micro-control unit 11, the temperature data exported for receiving the temperature detecting module 105, according to receiving
Temperature data, determine the gain factor that the signal conversion unit will be set, export the gain factor to the signal
Converting unit；
The signal conversion unit 12, the gain factor exported for receiving the micro-control unit 11, will currently set
Gain factor be adjusted to the gain factor received, and writing signal is received from the electromagnetic screen 101, according to what is currently set
Gain factor to it is described writing signal signal amplitude gain to the currently set gain multiple corresponding to signal amplitude, and
Writing signal after output gain gives the micro-control unit 11；
The micro-control unit 11, for giving the writing signal output after the gain received to the host computer control list
Member.
Further, the micro-control unit 11 determines the signal conversion unit 12 according to the temperature data received
The gain factor of setting, it is specially：
According to the temperature data received, judge whether Temperature numerical corresponding to current time is more than preset temperature threshold value；
Preferably, the preset temperature threshold value is zero degrees celsius.
If, it is determined that the gain factor that the signal conversion unit 12 will be set is the first gain factor；
If not, it is determined that the gain factor that the signal conversion unit 12 will be set is the second gain factor；Wherein, institute
State the second gain factor and be more than first gain factor.
For example, when temperature sensor detects that temperature is less than zero degree, the micro-control unit 11 is according to temperature sensor
The temperature of offer, the gain factor that determining the signal conversion unit 12 high will put is heightened, so that signal conversion unit 12 exists
Increase the output amplitude of signal during conversion writing signal, so as to offset the electromagnetic wave letter that capacitance plate 102 is sent to time writer
Number decay, it is not in the situation of broken string to realize normal electromagnetic screen 101 writing under low temperature.
Further, the touch display system also includes the control module of capacitance plate 102；
The control module of capacitance plate 102, for receiving writing signal from the capacitance plate 102, and by the writing
Signal sends the master machine control unit to, is carried out so that the master machine control unit sends the writing signal to display
Show written handwriting.
It should be noted that the complete machine of touch display system includes electromagnetic screen 101, capacitance plate 102, display screen 103, master
Machine control module 104 and electromagnetic screen control module 106, and the control module of capacitance plate 102, host computer control module 104 are controlled respectively
Electromagnetic screen control module 106 processed and the work of the control module of capacitance plate 102, and electromagnetic screen control module 106 controls the work of electromagnetic screen 101
Make, the control module of capacitance plate 102 control capacitance plate 102 works.When writer is being write using time writer on screen, electromagnetism
The electromagnetic wave signal that pen is sent is sent to electromagnetic screen 101 through capacitance plate 102, and electromagnetic screen 101 is electric by the electromagnetic wave signal of reception
The electromagnetic wave signal received from electromagnetic screen 101 is changed into writing signal and sends host computer control module to by magnetic control module
104.When writer is useless to be write using time writer on screen, capacitance plate 102 generates capacitance signal, and capacitance plate 102 is controlled
The capacitance signal is converted into writing signal and sends host computer control module 104 to by molding block.And then host computer control module 104, will
Writing signal sends display to and carries out display written handwriting.No matter touch display system namely provided by the invention realizes have
Situation about can be write in the case of without time writer.
Preferably, the communication connection between the micro-control unit 11 and the master machine control unit is USB connections, then
The micro-control unit 11 is connected by the USB, gives the writing signal output after the gain received to the host computer control
Unit.
Further, the writing signal includes the coordinate data of electromagnetic screen 101 described in time writer touch-control.Display is
The coordinate data of touch-control is shown on screen according to writer.
It is the structural representation of another embodiment of touch display system provided by the invention referring to Fig. 3.It is of the invention real
Applying the electromagnetic screen control module of the touch display system of example offer includes signal conversion unit 12, micro-control unit 11, amplifier list
Member 13, and temperature detecting module is temperature sensor.
The workflow write below with reference to Fig. 3 descriptions writing using touch display system provided by the invention
Journey：
Step 1：Writer receives power supply to complete machine powering, then electromagnetic screen control module 106, starts working.
Step 2：The micro-control unit 11 of electromagnetic screen control module 106 initializes, temperature sensor work；
Step 3：The micro-control unit 11 of electromagnetic screen control module 106 receives the complete machine of the real-time sensing of temperature sensor
The operating temperature of working environment, when the operating temperature numerical value received is more than zero degree, the conversion of the control signal of micro-control unit 11
The gain factor of unit 12 is arranged to A, when the operating temperature numerical value received is less than zero degree, the control signal of micro-control unit 11
The gain factor of converting unit 12 is arranged to B, and B gain values are more than A.
Step 4：Signal conversion unit 12 will connect according to the gain factor A or B that have currently set from electromagnetic screen 101
The range value of the writing signal received is amplified to range value corresponding to gain factor A or B, and will change the writing signal after amplifying
Send fixed running unit to and carry out amplifier.There is provided fixed amplifier unit 13 so that the adjustable increasing of amplification of signal conversion unit 12
Benefit is more reliable.
Step 5, the writing signal after the amplifier of amplifier unit 13 are transmitted to micro-control unit 11, and micro-control unit 11 will connect
The writing signal packing received is converted into usb signal, is connected by usb communication, sends the USB signals to host computer control list
Member；
Step 6：The usb signal of reception is demodulated to writing signal by master machine control unit, wherein the letter number includes
Writer uses the coordinate data of time writer touch-control on electromagnetic screen 101；Master machine control unit sends the writing signal to aobvious
Show device, display shows written trace in coordinate corresponding to the coordinate data, so as to complete writing process.
A kind of touch display system provided in an embodiment of the present invention, mould is controlled in the electromagnetic screen of original touch display system
Increase a temperature detecting module in block, electromagnetic screen control module is adjusted to being received from electromagnetic screen by the temperature detected
The gain factor for the writing signal gain amplification arrived, and then, even if because temperature change causes the electricity made of nano-silver thread technique
Rong Ping changes characteristic so that and capacitance plate weakens through capacitance plate and reaches the electromagnetic wave signal of electromagnetic screen, but because of electromagnetic screen
Electromagnetic screen control module multiplication factor can be increased by the electromagnetic wave signal that capacitance plate weakens to receiving, can avoid
The situation that electromagnetic screen occurs writing broken string in subregion because of temperature change occurs.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
- A kind of 1. touch display system, it is characterised in that including：Electromagnetic screen, capacitance plate, display screen, host computer control module, temperature Detection module and electromagnetic screen control module；The temperature detecting module, the temperature to be worked for detecting the touch display system under current operating environment, and it is defeated Go out the temperature corresponding temperature data to the electromagnetic screen control module；The electromagnetic screen control module, for according to the temperature data received, adjusting the writing letter received from electromagnetic screen Number gain factor, the signal amplitude gain of the writing signal received is corresponded into signal amplitude to the gain factor, and Writing signal after output gain gives the host computer control module；The host computer control module, for receiving the writing signal after the gain, and the writing signal received is sent to Display carries out display written handwriting.
- 2. touch display system as claimed in claim 1, it is characterised in that the electromagnetic screen control module is changed including signal Unit and micro-control unit；The micro-control unit, for receiving the temperature data of the temperature detecting module output, according to the temperature number received According to determining the gain factor that the signal conversion unit will be set, export the gain factor to the signal conversion unit；The signal conversion unit, for receiving the gain factor of the micro-control unit output, by currently set gain times Number is adjusted to the gain factor received, and receives writing signal from the electromagnetic screen, according to currently set gain multiple pair Signal amplitude corresponding to the signal amplitude gain to the currently set gain multiple of the writing signal, and after output gain Writing signal give the micro-control unit；The micro-control unit, for giving the writing signal output after the gain received to the master machine control unit.
- 3. touch display system as claimed in claim 2, it is characterised in that the temperature data that the basis receives, it is determined that The gain factor that the signal conversion unit is set, it is specially：According to the temperature data received, judge whether Temperature numerical corresponding to current time is more than preset temperature threshold value；If, it is determined that the gain factor that the signal conversion unit will be set is the first gain factor；If not, it is determined that the gain factor that the signal conversion unit will be set is the second gain factor；Wherein, described second Gain factor is more than first gain factor.
- 4. touch display system as claimed in claim 1, it is characterised in that the touch display system also includes capacitance plate control Molding block；The capacitance plate control module, sent to for receiving writing signal from the capacitance plate, and by the writing signal The master machine control unit, so that the master machine control unit, which sends the writing signal to display, carries out display lettering pen Mark.
- 5. touch display system as claimed in claim 2, it is characterised in that the micro-control unit and the host computer control list Communication connection between member is USB connections, then the micro-control unit is connected by the USB, after the gain received Writing signal output gives the master machine control unit.
- 6. touch display system as claimed in claim 1, it is characterised in that the writing signal is included described in time writer touch-control The coordinate data of electromagnetic screen.
- 7. touch display system as claimed in claim 1, it is characterised in that the temperature detecting module is temperature sensor.
- 8. touch display system as claimed in claim 3, it is characterised in that the preset temperature threshold value is zero degrees celsius.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711220369.3A CN107831944B (en) | 2017-11-28 | 2017-11-28 | Touch display system |
| PCT/CN2018/113627 WO2019105178A1 (en) | 2017-11-28 | 2018-11-02 | Touch display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711220369.3A CN107831944B (en) | 2017-11-28 | 2017-11-28 | Touch display system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107831944A true CN107831944A (en) | 2018-03-23 |
| CN107831944B CN107831944B (en) | 2020-06-26 |
Family
ID=61646247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711220369.3A Active CN107831944B (en) | 2017-11-28 | 2017-11-28 | Touch display system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107831944B (en) |
| WO (1) | WO2019105178A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105178A1 (en) * | 2017-11-28 | 2019-06-06 | 广州视源电子科技股份有限公司 | Touch display system |
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| CN107831944B (en) * | 2017-11-28 | 2020-06-26 | 广州视源电子科技股份有限公司 | Touch display system |
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| CN103975292A (en) * | 2011-09-28 | 2014-08-06 | 亚马逊技术股份有限公司 | Magnetic stylus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107831944B (en) | 2020-06-26 |
| WO2019105178A1 (en) | 2019-06-06 |
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