CN106293220B - A kind of touch screen, active pen, actively touch-control system and drive method thereof - Google Patents
A kind of touch screen, active pen, actively touch-control system and drive method thereof Download PDFInfo
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- CN106293220B CN106293220B CN201610631561.0A CN201610631561A CN106293220B CN 106293220 B CN106293220 B CN 106293220B CN 201610631561 A CN201610631561 A CN 201610631561A CN 106293220 B CN106293220 B CN 106293220B
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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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
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
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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
- G06F3/0412—Digitisers structurally integrated in a display
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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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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of touch screen, active pen, actively touch-control system and drive method thereof, touch screen include touch control electrode, the auxiliary electrode and driving chip between touch control electrode；Driving chip in the active style of writing control stage according to the capacitance variation of touch control electrode received touch drive signal detection touch control electrode to judge position of touch, and determining pressure size is decoded to the received encoded signal of auxiliary electrode simultaneously.Active pen includes active ontology, for detecting pressure size and generating the pressure sensor of encoded signal, the encoded signal transmission unit that encoded signal is sent for the pen hoop by ontology sends the coordinate driving transmission unit of touch drive signal for the pen tip by ontology and drives transmission unit and encoded signal transmission unit while the Phase-Locked Synchronous unit for sending signal for controlling coordinate.Since encoded signal and touch drive signal are to send and receive simultaneously, the time in active style of writing control stage can be reduced.
Description
Technical field
The present invention relates to field of display technology, espespecially a kind of touch screen, active pen, actively touch-control system and associated drives
Method.
Background technique
With the development of touch technology, more and more mobile terminals carry out human-computer interaction using touch control manner.It touches aobvious
Display screen can also use felt pen to carry out touch operation in addition to finger touch operation can be used.
Felt pen includes being started writing and active pen.Wherein, that is started writing functions as the finger of people, when contact of being started writing
When touch display screen, touch display screen has sub-fraction electric current to flow into from touch point to be started writing, this is equivalent at touch point electric
The change of electrode capacitance, the control chip of touch display screen can determine the position of touch point by the variation of detecting electrode capacitor
It sets.The nib started writing is commonly designed larger.Active pen can then launch pumping signal, to change the electricity at touch point
, to change the electrode capacitance at touch point, the control chip of touch display screen can be with by the variation of detecting electrode capacitor
Determine the position of touch point.The nib of active pen can design smaller.
In the prior art, the capacitance electrode of several mutually insulateds is provided in touch screen, in the active style of writing control stage, actively
Pen had needed to send touch drive signal to touch screen not only to determine position of touch, but also needed to send encoded signal to touch screen with true
Constant-pressure size.But since capacitance electrode can only receive a kind of signal simultaneously, in the prior art, in active style of writing control
Stage, active pen send touch drive signal and encoded signal by way of timesharing, so as to cause active style of writing control
The time in stage is longer, and then the display time of touch screen is caused to shorten, this and higher and higher display resolution trend at present
It runs in the opposite direction.
Summary of the invention
The embodiment of the invention provides a kind of touch screen, active pen, actively touch-control system and drive method thereof, to
It solves the problems, such as the time in active style of writing control stage exists in the prior art longer.
A kind of active pen for touch screen provided in an embodiment of the present invention, including actively ontology further include：Setting exists
Pressure sensor on ontology, encoded signal transmission unit, Phase-Locked Synchronous unit and coordinate drive transmission unit；Wherein,
The pressure sensor is used to detect the size of the pressure when the Stylus contact touch screen of the ontology, and according to pressure
The size of power generates encoded signal；
The coordinate driving transmission unit is used under the control of the Phase-Locked Synchronous unit, passes through the pen tip of the ontology
Touch drive signal is sent with the first predeterminated frequency to the touch screen；
The encoded signal transmission unit is used under the control of the Phase-Locked Synchronous unit, passes through the pen hoop of the ontology
The encoded signal that the pressure sensor generates is sent with the second predeterminated frequency to the touch screen；Wherein the described first default frequency
Rate and second predeterminated frequency be not identical；
The Phase-Locked Synchronous unit exists for controlling the coordinate driving transmission unit and the encoded signal transmission unit
The active style of writing control stage sends signal to the touch screen simultaneously；
The pen tip and pen hoop of the ontology are conductive material, and the pen tip of the ontology and the pen hoop of the ontology are mutual
Insulation.
Preferably, the Phase-Locked Synchronous unit is specifically used in above-mentioned active pen provided in an embodiment of the present invention：
The synchronously control letter that the touch screen is sent is received by the pen tip of the ontology and/or the pen hoop of the ontology
Number, and the coordinate driving transmission unit and the encoded signal transmission unit are controlled actively according to the synchronous control signal
The style of writing control stage sends signal to the touch screen simultaneously.
Correspondingly, the embodiment of the invention also provides a kind of driving methods of above-mentioned active pen, including：
The Phase-Locked Synchronous unit receives the synchronous control signal that the touch screen is sent；
The Phase-Locked Synchronous unit controls the coordinate driving transmission unit in active pen according to the synchronous control signal
The touch-control stage sends touch drive signal to the touch screen, and controls the encoded signal transmission unit in the active style of writing
The control stage sends encoded signal to the touch screen.
Correspondingly, the embodiment of the invention also provides a kind of touch screen, including the upper substrate and lower substrate being oppositely arranged, with
And the touch control electrode of multiple mutually insulateds between the upper substrate and the lower substrate, it is corresponding with each touch control electrode
First conducting wire of connection；Further include：
Between adjacent rows or/and the adjacent two column touch control electrode and with the touch control electrode mutually insulated
Auxiliary electrode, the second conducting wire being correspondingly connected with each auxiliary electrode, and with each first conducting wire and each described second
The connected driving chip of conducting wire；Wherein,
The driving chip is used for the touching in the active style of writing control stage, sent according to the received active pen of the touch control electrode
Control driving signal detects the capacitance variation of the touch control electrode to judge position of touch, and to the received institute of the auxiliary electrode
The encoded signal for stating the transmission of active pen is decoded to determine pressure size；Wherein the active pen provides for the embodiment of the present invention
Any of the above-described kind of active pen.
Preferably, the auxiliary electrode is to surround the touch-control electricity in above-mentioned touch screen provided in an embodiment of the present invention
The annular electrode of pole；Or
The auxiliary electrode is strip shaped electric poles.
Preferably, in above-mentioned touch screen provided in an embodiment of the present invention, the second conducting wire described in each it is corresponding one or
Multiple auxiliary electrodes.
Preferably, the driving chip is also used in the active in above-mentioned touch screen provided in an embodiment of the present invention
Touch control electrode described in the forward direction in style of writing control stage and/or the auxiliary electrode send synchronous control signal.
Preferably, the driving chip is also used in finger touch in above-mentioned touch screen provided in an embodiment of the present invention
Stage applies touch control detection signal to each touch control electrode, and detects the capacitance variation of each touch control electrode to judge to touch
Control position.
Preferably, the touch control electrode and the auxiliary electrode are same in above-mentioned touch screen provided in an embodiment of the present invention
Layer setting.
Preferably, in above-mentioned touch screen provided in an embodiment of the present invention, each touch control electrode and each auxiliary electricity
Pole is multiplexed common electrode layer；
The driving chip is also used to apply in the display stage to each touch control electrode and each auxiliary electrode public
Electrode signal.
Correspondingly, the embodiment of the invention also provides the driving method of above-mentioned touch screen, the touch screen is driven using timesharing
Dynamic method, wherein：
In the display stage, the driving chip applies public electrode letter to each touch control electrode and each auxiliary electrode
Number；
In the finger touch stage, the driving chip applies touch control detection signal to each touch control electrode, and detects each
The capacitance variation of the touch control electrode is to judge position of touch；
In the active style of writing control stage, touch-control that the driving chip is sent according to the received active pen of each touch control electrode
Driving signal detects the capacitance variation of each touch control electrode to judge position of touch, and to the received master of the auxiliary electrode
The encoded signal of transmission of starting writing is decoded to determine pressure size.
Preferably, further including before the active style of writing control stage in above-mentioned driving method provided in an embodiment of the present invention
Synchronous control phase, and the synchronous control phase and the finger touch stage and the display stage be not be overlapped；
In the synchronous control phase, the driving chip sends same to the touch control electrode and/or the auxiliary electrode
Step control signal exports touch-control driving to control the active pen contacted with the touch screen in the active style of writing control stage simultaneously
Signal and encoded signal.
Correspondingly, the embodiment of the invention also provides a kind of active touch-control system, including it is provided in an embodiment of the present invention
Above-mentioned any of the above-described kind of touch screen and any of the above-described kind of active pen.
The present invention has the beneficial effect that：
Above-mentioned touch screen, active pen, active touch-control system and drive method thereof provided in an embodiment of the present invention, actively
Pen includes active ontology, and pressure sensor on the body, encoded signal transmission unit, Phase-Locked Synchronous unit and coordinate is arranged
Drive transmission unit；Wherein, pressure sensor is used to detect the size of the pressure when body contacts touch screen, and according to pressure
Size generates encoded signal；Coordinate drives transmission unit to be used to send touch drive signal to touch screen by the pen tip of ontology；
Encoded signal transmission unit, which is used to bind round by the pen of ontology to touch screen, sends the encoded signal that pressure sensor generates；Locking phase is same
Step unit is for controlling coordinate driving transmission unit and encoded signal transmission unit in the active style of writing control stage simultaneously to touch screen
Send signal.Touch screen mainly includes the touch control electrode of multiple mutually insulateds, is located at adjacent rows or/and adjacent two column touch-control electricity
Auxiliary electrode and driving chip between pole and with touch control electrode mutually insulated；Driving chip was used in the active style of writing control stage,
According to the capacitance variation of the received touch drive signal detection touch control electrode of touch control electrode to judge position of touch, and to auxiliary
The received encoded signal of electrode is decoded to determine pressure size.Due in active style of writing control stage, encoded signal and touch-control
Driving signal sends and receives simultaneously, therefore can shorten the duration in active style of writing control stage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of active pen provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the driving method of active pen provided in an embodiment of the present invention；
Fig. 3 a and Fig. 3 b are respectively the overlooking structure diagram of touch screen provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the driving method of touch screen provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
The shapes and sizes of each component do not reflect actual proportions in attached drawing, and purpose is schematically illustrate the content of present invention.
A kind of active pen for above-mentioned touch screen provided in an embodiment of the present invention, as shown in Figure 1, including active ontology
10, further include：Pressure sensor 20 on ontology 10, encoded signal transmission unit 30, Phase-Locked Synchronous unit 40 and seat are set
Mark driving transmission unit 50；Wherein,
Pressure sensor 20 is used to detect the size of the pressure when the pen tip 101 of ontology 10 contacts touch screen, and according to pressure
The size of power generates encoded signal；
Coordinate drives transmission unit 50 to be used under the control of Phase-Locked Synchronous unit 40, by the pen tip 101 of ontology 10 to
Touch screen sends touch drive signal with the first predeterminated frequency；
Encoded signal transmission unit 30 is used under the control of Phase-Locked Synchronous unit 40, by the pen hoop 102 of ontology 10 to
Touch screen sends the encoded signal that pressure sensor 20 generates with the second predeterminated frequency；Wherein the first predeterminated frequency and second is preset
Frequency is not identical；
Phase-Locked Synchronous unit 40 is for controlling coordinate driving transmission unit 50 and encoded signal transmission unit 30 in active pen
The touch-control stage sends signal to touch screen simultaneously；
The pen tip 101 of ontology 10 and pen hoop 102 are conductive material, and the pen hoop of the pen tip 101 of ontology 10 and ontology 10
102 mutually insulateds.
Above-mentioned active pen provided in an embodiment of the present invention, since pen tip and pen hoop are conductive material, and pen tip and pen hoop
Mutually insulated, therefore pass through pen tip to touching in the active style of writing control stage using Phase-Locked Synchronous unit control coordinate driving transmission unit
It touches screen and touch drive signal is sent with the first predeterminated frequency, control encoded signal transmission unit in the active style of writing control stage and pass through pen
It binds round to touch screen and sends encoded signal, therefore the duration in active style of writing control stage can be shortened.
Preferably, Phase-Locked Synchronous unit is specifically used in above-mentioned active pen provided in an embodiment of the present invention：
The synchronous control signal that touch screen is sent is received by the pen tip of ontology and/or the pen hoop of ontology, and according to synchronization
It controls signal control coordinate driving transmission unit and encoded signal transmission unit is sent out to touch screen simultaneously in the active style of writing control stage
The number of delivering letters.
Based on the same inventive concept, the embodiment of the invention also provides the driving methods of above-mentioned active pen, as shown in Fig. 2,
Including：
S201, Phase-Locked Synchronous unit receive the synchronous control signal that touch screen is sent；
S202, Phase-Locked Synchronous unit control coordinate driving transmission unit in the active style of writing control stage according to synchronous control signal
Touch drive signal is sent to touch screen, and controls encoded signal transmission unit and sends volume to touch screen in the active style of writing control stage
Code signal.
The driving method of above-mentioned active pen provided in an embodiment of the present invention, due to Phase-Locked Synchronous unit control coordinate driving hair
It send unit and encoded signal transmission unit to send signal to touch screen simultaneously in the active style of writing control stage, therefore can shorten actively
The duration in style of writing control stage.
Based on the same inventive concept, the embodiment of the invention also provides a kind of touch screens, as shown in Figure 3a and Figure 3b shows, including
The upper substrate and lower substrate (not shown) being oppositely arranged, and multiple mutually insulateds between upper substrate and lower substrate
Touch control electrode 1, the first conducting wire 2 being correspondingly connected with each touch control electrode 1；Further include：
It is between adjacent rows or/and adjacent two column touch control electrode 1 and electric with the auxiliary of 1 mutually insulated of touch control electrode
Pole 3, the second conducting wire 4 being correspondingly connected with each auxiliary electrode 3, and the driving being connected with each first conducting wire 2 and each second conducting wire 4
Chip (not shown)；Wherein,
Driving chip was used in the active style of writing control stage, drove letter according to the touch-control that the received active pen of touch control electrode is sent
The capacitance variation of number detection touch control electrode believes the coding that the received active pen of auxiliary electrode is sent with judging position of touch
It number is decoded to determine pressure size；
Wherein active pen is any of the above-described kind of active pen provided in an embodiment of the present invention.
Above-mentioned touch screen provided in an embodiment of the present invention, due to not being provided only with touch control electrode between upper substrate and lower substrate
With the first conducting wire, compared with existing touch screen, also add between adjacent rows or/and adjacent two column touch control electrode,
And with the auxiliary electrode of touch control electrode mutually insulated and the second conducting wire being connected with auxiliary electrode, can use touch control electrode in this way
The touch drive signal that active pen is sent is received, the encoded signal that active pen is sent is received using auxiliary electrode, to drive core
Piece can detect the capacitance variation of touch control electrode according to the received touch drive signal of touch control electrode to judge position of touch, and
Determining pressure size is decoded to the received encoded signal of auxiliary electrode.Therefore above-mentioned touch provided in an embodiment of the present invention
Screen can receive touch drive signal by touch control electrode and auxiliary electrode in the active style of writing control stage simultaneously respectively and coding is believed
Number, so as to shorten the duration in active style of writing control stage.
In the specific implementation, in above-mentioned touch screen provided in an embodiment of the present invention, as shown in Figure 3a, auxiliary electrode 3 can
Think the annular electrode for surrounding touch control electrode 1.Such as when the shape of touch control electrode 1 is rectangle, the shape of auxiliary electrode 3 is back
Font.
Alternatively, in the specific implementation, in above-mentioned touch screen provided in an embodiment of the present invention, as shown in Figure 3b, auxiliary electricity
Pole 3 is strip shaped electric poles, is not limited thereto.
Further, in the specific implementation, the reception of encoded signal needs not distinguish between coordinate, therefore theoretically all auxiliary
Electrode can only correspond to second conducting wire, it is contemplated that loading problem, therefore can be multiple auxiliary electrodes corresponding one
The second conducting wire of item.Therefore in above-mentioned touch screen provided in an embodiment of the present invention, the second conducting wire of each is corresponding one or more
Auxiliary electrode.
Preferably, driving chip is also used in active style of writing control rank in above-mentioned touch screen provided in an embodiment of the present invention
The forward direction touch control electrode and/or auxiliary electrode of section send synchronous control signal.Pass through the locking phase of touch screen control active pen in this way
Synchronization unit.In the specific implementation, touch screen generally needs not only to realize the control of active style of writing, but also needs to be able to achieve finger
Touch function, it is thus preferable to, in above-mentioned touch screen provided in an embodiment of the present invention, driving chip is also used to touch in finger
The control stage applies touch control detection signal to each touch control electrode, and detects the capacitance variation of each touch control electrode to judge touch-control position
It sets, i.e., realizes the function of finger touch by self-capacitance principle.
In the specific implementation, in above-mentioned touch screen provided in an embodiment of the present invention, touch control electrode and auxiliary electrode same layer
Setting, only needs to change composition pattern in this way, does not need individually to increase the patterning processes for forming auxiliary electrode, to simplify production
Technique reduces production cost.
Further, in above-mentioned touch screen provided in an embodiment of the present invention, each touch control electrode and the multiplexing of each auxiliary electrode
Common electrode layer；
Driving chip is also used to apply common electrode signal to each touch control electrode and each auxiliary electrode in the display stage.
Based on the same inventive concept, the embodiment of the invention also provides a kind of above-mentioned touch screens provided in an embodiment of the present invention
Driving method, the touch screen use timesharing driving method, as shown in figure 4, wherein：
S401, in the display stage, driving chip applies common electrode signal to each touch control electrode and each auxiliary electrode；
S402, in the finger touch stage, driving chip applies touch control detection signal to each touch control electrode, and detects each touch-control
The capacitance variation of electrode is to judge position of touch；
S403, the touch-control drive sent in active style of writing control stage, driving chip according to the received active pen of each touch control electrode
The capacitance variation of each touch control electrode of signal detection is moved to judge position of touch, and the received active pen of auxiliary electrode is sent
Encoded signal is decoded to determine pressure size.
Above-mentioned driving method provided in an embodiment of the present invention, since in the active style of writing control stage, driving chip root can evidence
Each received touch drive signal of touch control electrode detects the capacitance variation of each touch control electrode to judge position of touch, and to auxiliary
The received encoded signal of electrode is decoded determining pressure size, with reception touch drive signal and reception in existing driving method
Encoded signal is that timesharing is compared, so as to shorten the duration in active style of writing control stage.
It should be noted that in above-mentioned driving method provided in an embodiment of the present invention, step S401, step S402 and step
The execution sequencing of rapid S403 can be arbitrary, and be not limited thereto.
Further, it in above-mentioned driving method provided in an embodiment of the present invention, is also wrapped before the active style of writing control stage
Synchronous control phase is included, and synchronous control phase and finger touch stage and display stage be not be overlapped；
In synchronous control phase, driving chip sends synchronous control signal to touch control electrode and/or auxiliary electrode.
Based on the same inventive concept, the embodiment of the invention also provides a kind of active touch-control system, including the present invention are real
Any of the above-described kind of touch screen for applying example offer, further includes any of the above-described kind of active pen provided in an embodiment of the present invention.Specific active
The implementation of touch-control system is referring to the implementation of above-mentioned touch screen and the implementation of above-mentioned active pen.
Above-mentioned active touch-control system provided in an embodiment of the present invention, touch screen includes touch control electrode, is located at touch control electrode
Between auxiliary electrode and driving chip；Driving chip is in the active style of writing control stage according to the received touch-control driving letter of touch control electrode
The capacitance variation of number detection touch control electrode and simultaneously solves the received encoded signal of auxiliary electrode with judging position of touch
Code determines pressure size.Active pen includes actively ontology, for detecting pressure size and generating the pressure sensing of encoded signal
Device sends the encoded signal transmission unit of encoded signal for the pen hoop by ontology, for sending touching by the pen tip of ontology
The coordinate of control driving signal drives transmission unit and for controlling coordinate driving transmission unit and encoded signal transmission unit simultaneously
Send the Phase-Locked Synchronous unit of signal.Since encoded signal and touch drive signal are to send and receive simultaneously, can subtract
The time in few active style of writing control stage.
In the specific implementation, it in above-mentioned active touch-control system provided in an embodiment of the present invention, is touched when active pen contacts
When screen, the electrode in pen tip and touch screen forms coupled capacitor, and the electrode in pen hoop and touch screen forms coupled capacitor, therefore drives
Dynamic chip can detect the signal on pen tip or pen hoop by the principle that mutual capacitance detects.Since the touch-control on pen tip drives letter
It is number not identical as the frequency of encoded signal on pen hoop, therefore it is directed to auxiliary electrode, it is second default that driving chip, which only detects frequency,
The signal of frequency, for touch control electrode, driving chip only detects the signal that frequency is the first predeterminated frequency, therefore driving chip can
To detect encoded signal and touch drive signal respectively simultaneously.
In the specific implementation, driving chip detects the capacitor of touch control electrode according to the received touch drive signal of touch control electrode
Specific implementation principle of the value variation to judge position of touch is not described in detail here referring to the touch screen of existing active style of writing control.
Further, in the specific implementation, the touch screen of existing active style of writing control is to receive coding using touch control electrode
Signal, and the embodiment of the present invention be using auxiliary electrode received encoded signal, therefore in the embodiment of the present invention driving chip to auxiliary
The received encoded signal of electrode is helped to be decoded the specific implementation principle of determining pressure size referring to the touching of existing active style of writing control
Screen is touched, is not described in detail here.
In the specific implementation, in above-mentioned active touch-control system provided in an embodiment of the present invention, touch screen is not known generally
It is active pen in touch-control or finger in touch-control, therefore touch screen can generally be determined with polling mode.
Specifically, touch screen at work can be there are three types of operating mode, respectively detection operating mode, actively Working mould
Formula and finger operating mode.When touch screen is opened, touch screen executes detection operating mode, has detected finger touch until working as
When, touch screen is switched to finger operating mode, or touch screen is switched to actively operating mode when having detected active touch-control.It is main
It starts writing after being switched to finger operating mode, repeats finger operating mode always until touch screen finds no finger touch
When, touch screen return continues to execute detection operating mode.After touch screen is switched to actively operating mode, master is repeated always
Operating mode start writing when touch screen discovery does not have finger touch, touch screen return continues to execute detection operating mode.Three kinds
The concrete principle of the switching of operating mode is identical as existing active touch-control system, is not described in detail here
In the specific implementation, detection operating mode generally comprises display stage, actively detection-phase and finger detection rank
Section；Actively an operating mode generally comprises display stage, synchronous control phase and active style of writing control stage；Finger operating mode one
As include display stage and finger touch stage.Wherein, in actively detection-phase, driving chip is for detecting whether have actively
Pen contact touch screen, in finger detection-phase, driving chip is for detecting whether there is finger to contact touch screen.Specifically, it detects
The concrete operating principle of operating mode and finger operating mode is similar to existing active touch-control system, is not described in detail here
The above-mentioned active touch-control system provided below by a specific embodiment the present invention will be described in detail embodiment.
In the specific implementation, each frame time is divided into multiple periods, to each time of closing since touch screen
One of which in the corresponding above-mentioned three kinds of operating modes of section, the operating mode of specific each period are：
The operating mode of 1st period to n-th (n >=1) a period are detection operating mode, and are from the 1st
A period started when n-th of period, had just detected that active pen (or finger) contacts touch screen；Wherein detect work
Operation mode includes display stage, actively detection-phase and finger detection-phase.
The operating mode of (n+1)th period to m (m >=n+1) a period are active pen (or finger) work
Mode, and be just to detect since (n+1)th period when m-th of period without active pen (or finger)
Contact touch screen；Wherein actively an operating mode generally comprises display stage, synchronous control phase and active style of writing control stage；Hand
Refer to that operating mode generally comprises display stage and finger touch stage.
The operating mode of the m+1 period to kth (k >=m+1) a period are detection operating mode, and be from
The m+1 period started when k-th of period, had just detected that active pen (or finger) contacts touch screen.
Later, and so on, until touch screen is closed.
In the specific implementation, above-mentioned active touch-control system provided in an embodiment of the present invention, in actively operating mode：
In the display stage, the driving chip of touch screen applies common electrode signal to touch control electrode and auxiliary electrode；In synchronously control rank
The driving chip of section, touch screen sends synchronous control signal, the pen that active pen passes through ontology to touch control electrode and/or auxiliary electrode
The pen hoop of point and/or ontology receives the synchronous control signal that touch screen is sent；In the active style of writing control stage, active pen is controlled synchronous
Under the control of signal processed, touch drive signal is sent to touch screen with the first predeterminated frequency by the pen tip of ontology, is passed through simultaneously
The pen of ontology binds round to touch screen and sends the encoded signal that pressure sensor generates with the second predeterminated frequency；The driving chip of touch screen
The capacitance variation of each touch control electrode is detected according to the touch drive signal that the received active pen of each touch control electrode is sent to judge
Position of touch, and the encoded signal sent simultaneously to the received active pen of auxiliary electrode is decoded determining pressure size.
Above-mentioned touch screen, active pen, active touch-control system and drive method thereof provided in an embodiment of the present invention,
Active pen includes actively ontology, is arranged pressure sensor on the body, encoded signal transmission unit, and locking phase is same
It walks unit and coordinate drives transmission unit；Wherein, pressure sensor is used to detect the size of the pressure when body contacts touch screen,
And encoded signal is generated according to the size of pressure；Coordinate drives transmission unit to be used to send touching to touch screen by the pen tip of ontology
Control driving signal；Encoded signal transmission unit, which is used to bind round by the pen of ontology to touch screen, sends the coding that pressure sensor generates
Signal；Phase-Locked Synchronous unit is same in the active style of writing control stage for controlling coordinate driving transmission unit and encoded signal transmission unit
When to touch screen send signal.Touch screen mainly includes the touch control electrode of multiple mutually insulateds, is located at adjacent rows or/and adjacent
Auxiliary electrode and driving chip between two column touch control electrodes and with touch control electrode mutually insulated；Driving chip is used for actively
The style of writing control stage, according to the capacitance variation of the received touch drive signal detection touch control electrode of touch control electrode to judge touch-control position
It sets, and the received encoded signal of auxiliary electrode is decoded to determine pressure size.Due in active style of writing control stage, coding
Signal and touch drive signal send and receive simultaneously, therefore can shorten the duration in active style of writing control stage.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (13)
1. a kind of active pen for touch screen, including actively ontology, which is characterized in that further include：It is arranged on the body
Pressure sensor, encoded signal transmission unit, Phase-Locked Synchronous unit and coordinate drive transmission unit；Wherein,
The pressure sensor is used to detect the size of the pressure when the Stylus contact touch screen of the ontology, and according to pressure
Size generates encoded signal；
Coordinate driving transmission unit is used under the control of the Phase-Locked Synchronous unit, by the pen tip of the ontology to institute
It states touch screen and touch drive signal is sent with the first predeterminated frequency；
The encoded signal transmission unit is used under the control of the Phase-Locked Synchronous unit, is bound round by the pen of the ontology to institute
It states touch screen and the encoded signal that the pressure sensor generates is sent with the second predeterminated frequency；Wherein first predeterminated frequency with
Second predeterminated frequency is not identical；
The Phase-Locked Synchronous unit is for controlling the coordinate driving transmission unit and the encoded signal transmission unit actively
The style of writing control stage sends signal to the touch screen simultaneously；
The pen tip and pen hoop of the ontology are conductive material, and the pen tip of the ontology and the pen hoop of the ontology are mutually exhausted
Edge.
2. active pen as described in claim 1, which is characterized in that the Phase-Locked Synchronous unit is specifically used for：
The synchronous control signal that the touch screen is sent is received by the pen tip of the ontology and/or the pen hoop of the ontology, and
The coordinate driving transmission unit and the encoded signal transmission unit are controlled in active style of writing according to the synchronous control signal
The control stage sends signal to the touch screen simultaneously.
3. a kind of driving method of active pen as claimed in claim 2, which is characterized in that including：
The Phase-Locked Synchronous unit receives the synchronous control signal that the touch screen is sent；
The Phase-Locked Synchronous unit controls the coordinate driving transmission unit in active style of writing control according to the synchronous control signal
Stage sends touch drive signal to the touch screen, and controls the encoded signal transmission unit in the active style of writing control rank
Section sends encoded signal to the touch screen.
4. a kind of touch screen including the upper substrate and lower substrate being oppositely arranged, and is located at the upper substrate and the lower substrate
Between multiple mutually insulateds touch control electrode, the first conducting wire being correspondingly connected with each touch control electrode；It is characterized in that, also
Including：
Auxiliary between adjacent rows or/and the adjacent two column touch control electrode and with the touch control electrode mutually insulated
Electrode, the second conducting wire being correspondingly connected with each auxiliary electrode, and with each first conducting wire and each second conducting wire
Connected driving chip；Wherein,
The driving chip is used to be driven in the active style of writing control stage according to the touch-control that the received active pen of the touch control electrode is sent
The capacitance variation of touch control electrode described in signal detection is moved to judge position of touch, and to the received master of the auxiliary electrode
The encoded signal of transmission of starting writing is decoded to determine pressure size；Wherein the active pen is as claimed in claim 1 or 2
Active pen.
5. touch screen as claimed in claim 4, which is characterized in that the auxiliary electrode is the annular for surrounding the touch control electrode
Electrode；Or
The auxiliary electrode is strip shaped electric poles.
6. touch screen as claimed in claim 4, which is characterized in that described in the corresponding one or more of the second conducting wire described in each
Auxiliary electrode.
7. such as the described in any item touch screens of claim 4-6, which is characterized in that the driving chip is also used in the active
Touch control electrode described in the forward direction in style of writing control stage and/or the auxiliary electrode send synchronous control signal.
8. touch screen as claimed in claim 7, which is characterized in that the driving chip is also used in the finger touch stage to each
The touch control electrode applies touch control detection signal, and detects the capacitance variation of each touch control electrode to judge position of touch.
9. touch screen as claimed in claim 8, which is characterized in that the touch control electrode and the auxiliary electrode same layer are arranged.
10. touch screen as claimed in claim 9, which is characterized in that each touch control electrode and each auxiliary electrode multiplexing are public
Common electrode layer；
The driving chip is also used to apply public electrode to each touch control electrode and each auxiliary electrode in the display stage
Signal.
11. a kind of driving method of touch screen as claimed in claim 10, which is characterized in that the touch screen is driven using timesharing
Dynamic method, wherein：
In the display stage, the driving chip applies common electrode signal to each touch control electrode and each auxiliary electrode；
In the finger touch stage, the driving chip applies touch control detection signal to each touch control electrode, and detects each described
The capacitance variation of touch control electrode is to judge position of touch；
In the active style of writing control stage, the driving chip drives according to the touch-control that each received active pen of touch control electrode is sent
The capacitance variation of each touch control electrode of signal detection is to judge position of touch, and to the received active pen of the auxiliary electrode
The encoded signal of transmission is decoded to determine pressure size.
12. driving method as claimed in claim 11, which is characterized in that before the active style of writing control stage further include synchronous control
Stage processed, and the synchronous control phase and the finger touch stage and the display stage be not be overlapped；
In the synchronous control phase, the driving chip sends synchronous control to the touch control electrode and/or the auxiliary electrode
Signal processed.
13. a kind of active touch-control system, which is characterized in that including active pen as claimed in claim 1 or 2 and as right is wanted
Seek the described in any item touch screens of 4-10.
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| CN201610631561.0A CN106293220B (en) | 2016-08-04 | 2016-08-04 | A kind of touch screen, active pen, actively touch-control system and drive method thereof |
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| CN108733233A (en) * | 2017-04-13 | 2018-11-02 | 瑞鼎科技股份有限公司 | Active signal recognition method applied to capacitance type touch-control panel |
| TWI652605B (en) | 2017-05-08 | 2019-03-01 | 義隆電子股份有限公司 | In-cell touch display device and communicating method thereof with an active stylus thereof |
| JP6585862B1 (en) * | 2017-12-27 | 2019-10-02 | シェンチェン グディックス テクノロジー カンパニー，リミテッド | Signal transmission method, active stylus pen, signal reception method, and touch panel |
| CN110431517B (en) * | 2018-01-05 | 2023-05-30 | 深圳市汇顶科技股份有限公司 | Pressure detection method and device of active pen and active pen |
| WO2021062642A1 (en) | 2019-09-30 | 2021-04-08 | 深圳市汇顶科技股份有限公司 | Signal emission and receiving methods, processor chip, active pen and touch screen |
| CN110688022B (en) * | 2019-09-30 | 2023-07-28 | 京东方科技集团股份有限公司 | Active pen, control method and device thereof, and handwriting display method and device |
| WO2021062641A1 (en) * | 2019-09-30 | 2021-04-08 | 深圳市汇顶科技股份有限公司 | Signal transmitting and receiving methods, processor chip, active pen, and touch screen |
| CN111095173B (en) * | 2019-11-22 | 2023-11-17 | 深圳市汇顶科技股份有限公司 | Pressure detection method, device and system, touch chip and electronic equipment |
| CN111367432B (en) * | 2020-02-28 | 2023-09-22 | 北京硬壳科技有限公司 | Method and system for supporting active pen, touch control adapter plate and system chip |
| WO2022052113A1 (en) * | 2020-09-14 | 2022-03-17 | 深圳市汇顶科技股份有限公司 | Wireless communication method, active pen, touch screen, electronic device and communication system |
| CN112558798A (en) * | 2021-02-19 | 2021-03-26 | 深圳市千分一智能技术有限公司 | Communication method and device of active pen, terminal and storage medium |
| CN113419662A (en) * | 2021-06-30 | 2021-09-21 | 北京科加触控技术有限公司 | Method, device, accessory and terminal for assisting touch equipment to present writing track |
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