CN106843584A - A kind of contact panel - Google Patents

A kind of contact panel Download PDF

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Publication number
CN106843584A
CN106843584A CN201710050772.XA CN201710050772A CN106843584A CN 106843584 A CN106843584 A CN 106843584A CN 201710050772 A CN201710050772 A CN 201710050772A CN 106843584 A CN106843584 A CN 106843584A
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CN
China
Prior art keywords
touch
control
input
phase inverter
signal
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.)
Pending
Application number
CN201710050772.XA
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Chinese (zh)
Inventor
龚强
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.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology 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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to CN201710050772.XA priority Critical patent/CN106843584A/en
Publication of CN106843584A publication Critical patent/CN106843584A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Hardware Design (AREA)
  • Electronic Switches (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention provides a kind of contact panel, including:Scan drive cell, for exporting touch scanning signals or display scanning signal;Touch control electrode, it is connected with the scan drive cell, for carrying out receiving the touch scanning signals when touch-control is scanned, or display scanning signal is received when display scanning is carried out, wherein, one scan drive cell exports touch scanning signals simultaneously to the adjacent touch control electrode of at least two rows, is used to reduce touch-control sweep time.The present invention can reduce touch-control sweep time.

Description

A kind of contact panel
Technical field
The invention belongs to display control technology field, specifically, more particularly to a kind of contact panel.
Background technology
Hybrid Incell Touch (mixing embedded touch) technology refers to be utilized in Array (array base palte) side COM-ITO (public indium zinc oxide film) forms scan line TX figures, in CF (color membrane substrates) side using back of the body plating ITO (indium oxides Zinc film) formed sense wire RX figures a kind of touch technology.
The Hybrid Incell Touch frameworks for using at present are used similar to GOA (Gate On in Array sides Araay, the line sweep technique being integrated on array base palte) drive circuit drive TX to progressively scan, can effectively reduce core The quantity of piece output pin.The COM-ITO in Array sides one whole face of script is divided into TX figures one by one.
Current Hybrid Incell Touch panels have two kinds of mode of operations:Display drive pattern and touch-control scanning mould Formula.In order to meet the scan frequency of display and the scan frequency of touch-control, in a frame in order to ensure touch-control effect, it is necessary to tactile The control scanning distribution sufficient time, it is accomplished by compressing the time charged to pixel when display picture is scanned for this.So work as panel When resolution ratio is higher, the charging interval of distribution to every one-row pixels can be too short, it is possible that the situation of pixel undercharge, shadow Ring the quality of display picture.
The content of the invention
To solve problem above, the invention provides a kind of contact panel, it is possible to reduce touch-control sweep time.
According to one embodiment of present invention, there is provided a kind of contact panel, including:
Scan drive cell, for exporting touch scanning signals or display scanning signal;
Touch control electrode, is connected with the scan drive cell, for carrying out receiving the touch-control scanning when touch-control is scanned Signal, or display scanning signal is received when display scanning is carried out,
Wherein, a scan drive cell exports touch-control to the adjacent touch control electrode of at least two rows and scans simultaneously Signal, is used to reduce touch-control sweep time.
According to one embodiment of present invention, the touch-control that a scan drive cell is exported to touch control electrode of not going together The frequency or phase of scanning signal are different.
According to one embodiment of present invention, the scan drive cell includes:
Displacement select unit, for exporting selection control signal;
Level biography phase inverter, is connected with the displacement select unit, for carrying out anti-phase treatment to the selection control signal;
At least two output units, corresponding with the touch control electrode line number, its input passes phase inverter with the level respectively Output end connection, for it is described selection control signal control under export touch scanning signals or display scanning signal.
According to one embodiment of present invention, the displacement select unit includes:
First phase inverter, its input is used to introduce the first clock signal;
First CMOS inverter, its input is used to introduce input signal, and the first control end connects first phase inverter Input, the second control end connects the output end of first phase inverter;
Second CMOS inverter, its first control end connects the output end of first phase inverter, the connection of the second control end The input of first phase inverter, output end connects the output end of first CMOS inverter;
Second phase inverter, its input connects the output end of first CMOS inverter, output end connection described second The input of CMOS inverter;
NAND gate, its first input end connects the input of second CMOS inverter and connects subordinate's displacement selection list The input of the first phase inverter of unit, the second input is used to introduce the second clock signal;
Reset transistor, its grid is used to introduce reset signal, and source electrode is used to introducing control signal, drain electrode connection described the The input of two phase inverters.
According to one embodiment of present invention, each output unit includes:
3rd phase inverter, its input connects the output end that the level passes phase inverter;
First transmission gate, its first control end connects the input of the 3rd phase inverter, and the connection of the second control end is described The output end of the 3rd phase inverter, input is used to introduce touch scanning signals;
Second transmission gate, its first control end connects the output end of the 3rd phase inverter, and the connection of the second control end is described The input of the 3rd phase inverter, input is used to introduce common electrode signal, and output end connects the output of first transmission gate End.
According to one embodiment of present invention, the touch control electrode is vertically arranged by scanning cabling and with the scanning cabling Sensing cabling overlapping formed.
According to one embodiment of present invention, the scanning cabling and the sensing cabling are disposed as row independent blocks.
According to one embodiment of present invention, the scanning cabling is arranged at the array base palte side of the contact panel.
According to one embodiment of present invention, the sensing cabling is arranged at the color membrane substrates side of the contact panel.
Beneficial effects of the present invention:
The present invention is scanned by exporting touch-control simultaneously to the adjacent touch control electrode of at least two rows from a scan drive cell Signal, it is possible to reduce touch-control sweep time.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights Specifically noted structure is realized and obtained in claim and accompanying drawing.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below embodiment will be described needed for want Accompanying drawing does simple introduction:
Fig. 1 is touch panel structure provided schematic diagrames of a kind of Hybrid Incell Touch in the prior art;
Fig. 2 is a kind of electrical block diagram of scan drive cell in the prior art;
Fig. 3 is the touch panel structure provided schematic diagrames of Hybrid Incell Touch according to an embodiment of the invention;
Fig. 4 is the electrical block diagram of scan drive cell according to an embodiment of the invention;
Fig. 5 is touch scanning signals timing diagram according to an embodiment of the invention.
Specific embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the present invention is applied whereby Technological means solves technical problem, and reaches the implementation process of technique effect and can fully understand and implement according to this.Need explanation As long as not constituting conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, The technical scheme for being formed is within protection scope of the present invention.
It is as shown in Figure 1 a kind of Organization Chart of Hybrid Incell Touch contact panels in the prior art.It is mutual with conventional The mode of operation of electric capacity embedded touch control panel is similar, and the crossover position of every scan line TX and sense wire RX forms a touch-control electricity Pole.TX and RX mutually correspond to determine the lateral coordinates X of touch point and the position of longitudinal coordinate Y, i.e. touch point.Wherein, TX drives The mode of operation of moving cell 11 is similar to GOA circuits, and TX signals (touch scanning signals) are exported line by line by TX driver elements.TX Cabling 12 is that TX driver elements are drawn.In array base palte side using COM-ITO layers of formation TX signal lead.RX cablings 13 are CF The RX signal leads that side back of the body plating ITO is formed.When TX signals are progressively scanned, by detecting the every signal intensity of RX cablings 13, Confirm touch-control current potential.Touch control electrode 14 overlaps position and is formed by TX cablings 12 and RX cablings 13.
It is as shown in Figure 2 a kind of electrical block diagram of TX driver elements 11 in the prior art, this circuit is selected by displacement Unit 111 and the two parts of output unit 112 composition are selected, TX scanning signals or common electrode signal can be sent into for TX cablings 12 (COM signals).Displacement select unit 111 is responsible for the transmission that level passes signal, so that circuit is under the control of timing control signal CK Trigger step by step.Output unit 112 according to displacement select unit 111 generate selection signal control circuit output TX signals or COM signals.Current Hybrid Incell Touch panels, by SECO, drive all of TX when box group is tested Unit 11 all exports an identical COM signal;When touch-control is scanned, all of TX driver elements 11 are made to export different touch-controls Scanning signal.
Displacement select unit 111 includes phase inverter 1111 and 1112, CMOS inverter 1113 and 1114, the He of NAND gate 1115 Transistor 1116.Output unit 112 includes phase inverter 1121 and 1122, transmission gate 1123 and 1124.Wherein, CK1, CK2 are represented Clock signal, VGH represents high level signal, and IN represents input signal, and NEXT represents input to next stage displacement select unit Input end signal, TX represents touch scanning signals, and COM represents common electrode signal, and RESET represents reset signal, and TXOUT is represented The scanning signal of output, the annexation of each several part is as shown in Figure 2.
Corresponding to two kinds of mode of operations of existing Hybrid Incell Touch display panels, in order to meet display scanning Frequency and the requirement of touch-control scan frequency, in a frame in order to ensure touch-control effect, it is necessary to touch-control scanning distribution it is sufficient when Between, complete the progressive scan of TX signals.It is accomplished by compressing the time charged to pixel when display picture is scanned for this.So face to face When plate resolution ratio is higher, the charging interval of distribution to every one-row pixels can be too short, it is possible that the situation of undercharge, influence The quality of display picture.
Therefore, the invention provides a kind of contact panel, by adjusting TX driver elements and type of drive to shorten touch-control The time of pixel charging is left in sweep time, increase for, it is to avoid because the picture that pixel undercharge causes shows abnormal.Such as Fig. 3 institutes Toutch control panel structure figure according to an embodiment of the invention is shown as, the present invention is described in detail below with reference to Fig. 3.
The contact panel includes scan drive cell 21 and touch control electrode 24.Scan drive cell 21 is swept for exporting touch-control Retouch signal or display scanning signal;Touch control electrode 24 is connected with scan drive cell 21, for received when touch-control is scanned Touch scanning signals, or display scanning signal is received when display scanning is carried out, wherein, a scan drive cell 21 is at least Adjacent rows touch control electrode 24 exports touch scanning signals simultaneously, is used to reduce touch-control sweep time.
From the figure 3, it may be seen that contact panel of the invention is on the basis of the touch-control framework shown in Fig. 1, one-level TX is allowed to drive Unit 21 drives 2 row TX cablings simultaneously.Touch scanning signals so are exported to adjacent 2 row touch control electrode 22 simultaneously, can be made TX sweep times halve, and such that it is able to increase the pixel charging time of a frame in, prevent because being shown caused by pixel undercharge It is abnormal.
In order to ensure that touch-control scan function is normal, the adjacent touch control electrode 24 of at least two rows needs the different TX of feeding to believe Number, when such as multirow adjacent touch electrode 24 is driven by same TX driver elements, different touching need to be input into each row touch control electrode 24 Control scanning signal.According to one embodiment of present invention, a scan drive cell 21 is to the output of touch control electrode 24 of not going together Touch scanning signals frequency is different.Specifically, distinguishing each touch scanning signals by different signal frequencies.Or, according to An alternative embodiment of the invention, the touch scanning signals phase that a scan drive cell 21 is exported to touch control electrode 24 of not going together Position is different.Specifically, distinguishing each touch scanning signals by different signal phases.As shown in figure 5, TX1 signals and TX2 letters Number phase it is different, such adjacent rows touch control electrode 24 is scanned simultaneously when, by the RX signals and TX1 signals, the TX2 that receive The contrast of signal, still can tell specific touch point position.
According to one embodiment of present invention, the scan drive cell 21 includes that displacement select unit 211, level passes phase inverter 212 and at least two output units, as shown in Figure 4.Displacement select unit 211 is used to export selection control signal;Level passes anti-phase Device 212 is connected with displacement select unit 211, for carrying out anti-phase treatment to selection control signal;At least two output units, with Touch control electrode line number correspondence, the output end that its input passes phase inverter 212 with level is connected, under selection control signal control Output touch scanning signals or display scanning signal.In the present invention, set multiple defeated by a TX driver element 21 Go out unit, and export scanning signal simultaneously, it is possible to reduce touch-control sweep time.
According to one embodiment of present invention, the displacement select unit includes the first phase inverter 2111, and its input is used for Introduce the first clock signal CK1;First CMOS inverter 2113, its input is used to introduce input signal IN, its first control The input of the first phase inverter 2111 of end connection, its second control end connects the output end of the first phase inverter 2111;2nd CMOS Phase inverter 2114, its first control end connects the output end of the first phase inverter 2111, and its second control end connects the first phase inverter 2111 input, its output end connects the output end of the first CMOS inverter 2113;Second phase inverter 2112, its input connects The output end of the first CMOS inverter 2113 is connect, its output end connects the input of the second CMOS inverter 2114;NAND gate 2115, its first input end connects the input of the second CMOS inverter 2114 and connects the first anti-of subordinate's displacement select unit The input of phase device, its second input is used to introduce the second clock signal;Reset transistor 2116, its grid is used to introduce multiple Position signal RESET, its source electrode is used to introduce control signal VGH, the input of its drain electrode the second phase inverter 2112 of connection.
According to one embodiment of present invention, as shown in figure 4, the output unit 213 includes the 3rd phase inverter 2131, its is defeated Enter the output end that end connection level passes phase inverter 213;First transmission gate 2132, its first control end connects the 3rd phase inverter 2131 Input, its second control end connects the output end of the 3rd phase inverter 2131, and its input is used to introduce touch scanning signals;The Two transmission gates 2132, its first control end connects the output end of the 3rd phase inverter 2131, and the second control end connects the 3rd phase inverter 2131 input, input is used to introduce common electrode signal, and its output end connects the output end of the first transmission gate 2132.It is defeated Go out unit 214 with identical attachment structure, be not added with repeating herein.
As shown in figure 4, the present invention is on the basis of original one-level TX drive circuits, increase an output unit, two defeated Go out unit to export simultaneously, two output units export different TX1 and TX2 signals respectively, TX1 and TX2 frequencies are made by adjustment Or phase is different, just touch-control performance can not be influenceed when two row TX are scanned simultaneously.
According to one embodiment of present invention, touch control electrode 24 is by scanning cabling 22 and vertically disposed with cabling 22 is scanned Sensing cabling 23 is overlapping to be formed, as shown in Figure 3.
According to one embodiment of present invention, scanning cabling 22 and sensing cabling 23 are disposed as row independent blocks, such as Fig. 3 It is shown.
According to one embodiment of present invention, scanning cabling 22 is arranged at the array base palte side of contact panel.
According to one embodiment of present invention, sensing cabling 23 is arranged at the color membrane substrates side of contact panel.
While it is disclosed that implementation method as above, but described content is only to facilitate understanding the present invention and adopting Implementation method, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the formal and details implemented, But scope of patent protection of the invention, must be still defined by the scope of which is defined in the appended claims.

Claims (9)

1. a kind of contact panel, including:
Scan drive cell, for exporting touch scanning signals or display scanning signal;
Touch control electrode, is connected with the scan drive cell, for receiving the touch scanning signals when touch-control scanning is carried out, Or reception shows scanning signal when display scanning is carried out,
Wherein, a scan drive cell exports touch-control scanning letter to the adjacent touch control electrode of at least two rows simultaneously Number, it is used to reduce touch-control sweep time.
2. contact panel according to claim 1 a, it is characterised in that scan drive cell is to touch-control of not going together The frequency or phase of the touch scanning signals of electrode output are different.
3. contact panel according to claim 1, it is characterised in that the scan drive cell includes:
Displacement select unit, for exporting selection control signal;
Level biography phase inverter, is connected with the displacement select unit, for carrying out anti-phase treatment to the selection control signal;
At least two output units, corresponding with the touch control electrode line number, its input passes the defeated of phase inverter with the level respectively Go out end connection, for exporting touch scanning signals or display scanning signal under the control of the selection control signal.
4. contact panel according to claim 3, it is characterised in that the displacement select unit includes:
First phase inverter, its input is used to introduce the first clock signal;
First CMOS inverter, its input is used to introduce input signal, and the first control end connects the defeated of first phase inverter Enter end, the second control end connects the output end of first phase inverter;
Second CMOS inverter, its first control end connects the output end of first phase inverter, and the connection of the second control end is described The input of the first phase inverter, output end connects the output end of first CMOS inverter;
Second phase inverter, its input connects the output end of first CMOS inverter, and output end connects the 2nd CMOS The input of phase inverter;
NAND gate, its first input end connects the input of second CMOS inverter and connects subordinate's displacement select unit The input of the first phase inverter, the second input is used to introduce the second clock signal;
Reset transistor, its grid is used to introduce reset signal, and source electrode is used to introduce control signal, and drain electrode connection described second is anti- The input of phase device.
5. contact panel according to claim 4, it is characterised in that each output unit includes:
3rd phase inverter, its input connects the output end that the level passes phase inverter;
First transmission gate, its first control end connects the input of the 3rd phase inverter, the second control end connection the described 3rd The output end of phase inverter, input is used to introduce touch scanning signals;
Second transmission gate, its first control end connects the output end of the 3rd phase inverter, the second control end connection the described 3rd The input of phase inverter, input is used to introduce common electrode signal, and output end connects the output end of first transmission gate.
6. contact panel according to claim 1, it is characterised in that the touch control electrode is swept by scanning cabling and with described Retouch that the vertically disposed sensing cabling of cabling is overlapping to be formed.
7. contact panel according to claim 6, it is characterised in that the scanning cabling and the sensing cabling are respectively provided with It is row independent blocks.
8. contact panel according to claim 7, it is characterised in that the scanning cabling is arranged at the contact panel Array base palte side.
9. contact panel according to claim 7, it is characterised in that the sensing cabling is arranged at the contact panel Color membrane substrates side.
CN201710050772.XA 2017-01-23 2017-01-23 A kind of contact panel Pending CN106843584A (en)

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Application Number Priority Date Filing Date Title
CN201710050772.XA CN106843584A (en) 2017-01-23 2017-01-23 A kind of contact panel

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Application Number Priority Date Filing Date Title
CN201710050772.XA CN106843584A (en) 2017-01-23 2017-01-23 A kind of contact panel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116700519A (en) * 2021-11-30 2023-09-05 荣耀终端有限公司 Touch display panel, driving method and touch display device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204166519U (en) * 2014-11-12 2015-02-18 京东方科技集团股份有限公司 The driver element of touch control electrode, driving circuit and contact panel
CN104392687A (en) * 2014-12-04 2015-03-04 厦门天马微电子有限公司 Drive unit as well as drive method thereof, drive circuit, array substrate and display panel
CN104898891A (en) * 2015-06-30 2015-09-09 厦门天马微电子有限公司 Touch control drive circuit and method and touch control screen
CN105355186A (en) * 2015-12-21 2016-02-24 厦门天马微电子有限公司 Drive circuit, touch display panel, driving method of touch display panel and touch display device
CN106293206A (en) * 2016-07-29 2017-01-04 厦门天马微电子有限公司 A kind of integrated touch-control display panel and touch control display device thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204166519U (en) * 2014-11-12 2015-02-18 京东方科技集团股份有限公司 The driver element of touch control electrode, driving circuit and contact panel
CN104392687A (en) * 2014-12-04 2015-03-04 厦门天马微电子有限公司 Drive unit as well as drive method thereof, drive circuit, array substrate and display panel
CN104898891A (en) * 2015-06-30 2015-09-09 厦门天马微电子有限公司 Touch control drive circuit and method and touch control screen
CN105355186A (en) * 2015-12-21 2016-02-24 厦门天马微电子有限公司 Drive circuit, touch display panel, driving method of touch display panel and touch display device
CN106293206A (en) * 2016-07-29 2017-01-04 厦门天马微电子有限公司 A kind of integrated touch-control display panel and touch control display device thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116700519A (en) * 2021-11-30 2023-09-05 荣耀终端有限公司 Touch display panel, driving method and touch display device
CN116700519B (en) * 2021-11-30 2024-04-12 荣耀终端有限公司 Touch display panel, driving method and touch display device

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