CN105741772B - O L ED display device and driving method and driving circuit thereof - Google Patents
O L ED display device and driving method and driving circuit thereof Download PDFInfo
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- CN105741772B CN105741772B CN201610322722.8A CN201610322722A CN105741772B CN 105741772 B CN105741772 B CN 105741772B CN 201610322722 A CN201610322722 A CN 201610322722A CN 105741772 B CN105741772 B CN 105741772B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 230000006698 induction Effects 0.000 claims description 7
- 238000003491 array Methods 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 230000001808 coupling effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 21
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control 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
- G09G3/22—Control 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 using controlled light sources
- G09G3/30—Control 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 using controlled light sources using electroluminescent panels
- G09G3/32—Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the invention discloses an O L ED display device, a driving method and a driving circuit thereof, wherein the O L ED display device comprises a display module and a touch module positioned on the surface of the display module, the driving method comprises the steps of providing a display driving signal for an anode in the display module and providing a display constant signal for a cathode in the display module in a display stage, and controlling a light-emitting device in the display module to display, and providing a touch driving signal for a touch electrode in the touch module in a touch stage to realize touch detection, and simultaneously stopping providing the display driving signal for the anode in the display module and the display constant signal for the cathode in the display module so as to weaken the coupling effect of the anode and the cathode in the display module on the touch electrode and improve the detection precision of the touch signal.
Description
Technical field
The present invention relates to the driving methods and driving electricity of OLED display technology fields more particularly to a kind of OLED display
Road and a kind of OLED display including the driving circuit.
Background technology
OLED display generally includes display module and the touch-control module positioned at the display module surface at present,
In, the display module includes the cathode and anode being oppositely arranged, and the luminescent device between the cathode and anode,
There is touch control electrode in the touch-control module.Wherein, the display module and the touch-control module time-sharing work, in display rank
Section, the anode in the display module inputs display drive signals, and cathode inputs constant drive signal, realizes display；In touch-control
Stage, the cathode in the display module maintain constant drive signal, and the touch control electrode input touch-control in the touch-control module drives
Dynamic signal, realizes touch control detection.
But the continuous improvement of the maturation and integrated technology with thin film encapsulation processes, in display module cathode with
The distance between touch control electrode is increasingly closer in the touch-control module, so as to cause cathode in the display module described in the touch-control stage
And the parasitic capacitance in touch-control module between touch control electrode is increasing so that the cathode is to the touch-control in the touch-control module
The coupling of electrode is also increasing, has seriously affected the detection of touching signals in touch-control module.
Invention content
In order to solve the above technical problems, an embodiment of the present invention provides a kind of driving method of OLED display and drivings
Circuit and a kind of OLED display including the driving circuit, to reduce in display module cathode to being touched in touch-control module
The coupling for controlling electrode, improves the accuracy of detection of touching signals.
To solve the above problems, an embodiment of the present invention provides following technical solutions：
A kind of driving method of OLED display, the OLED display include display module and be located at the display
The touch-control module of Modular surface, the driving method include：
In the display stage, display drive signals are provided to the anode in the display module, in the display module
Cathode, which provides, shows that constant signal, the luminescent device controlled in the display module are shown；
In the touch-control stage, stops providing display drive signals to the anode in the display module, stop to the display
Mould cathode in the block, which provides, shows constant signal, while providing touch-control drive signal to the touch control electrode in the touch-control module,
Realize touch control detection.
A kind of driving circuit of OLED display, is applied to above-mentioned driving method, and the OLED display includes aobvious
Show module and the touch-control module positioned at the display module surface, wherein the display module includes arranged in arrays multiple
Pixel unit, the driving circuit include：
Display driver circuit, the display driver circuit include N number of cascade display driver element, and each display is driven
Moving cell includes first input end, the first output end and second output terminal, wherein first of display driver element described in the first order
The external display drive signals of input terminal, the first input end of M grades of display driver elements and the M-1 grades of displays drive
The second output terminal of unit is electrically connected, for providing display drive signals for the anode of each pixel unit, wherein the M is big
In 1 and the positive integer less than N, the N be positive integer more than 1；
Control circuit, the control circuit include multiple and the one-to-one control unit of the display driver element, institute
It includes first input end, the second input terminal and output end to state control unit, wherein the first input end of described control unit is electrically connected
The first output end of the display driver element is connect, the second input terminal is electrically connected default control signal, and output end is corresponding
The anode of at least one pixel unit is electrically connected, and the display for exporting the display driver element in the display stage drives letter
Number output stops the display for exporting the display driver element and drives in the touch-control stage to the anode of its corresponding pixel unit
Dynamic signal is exported to the anode of its corresponding pixel unit；
Cathode driving circuit shows constant letter for persistently giving the cathode of the pixel unit to provide in the display stage
Number, stop providing display constant signal to the cathode of the pixel unit in the touch-control stage；
Touch drive circuit, in the touch-control stage, providing touch-control to the touch control electrode in the touch-control module and driving
Dynamic signal, realizes touch control detection.
A kind of OLED display, including：
Display module, the display module include：The cathode and anode being oppositely arranged, and positioned at the cathode and described
Luminescent device between anode；
Touch-control module, the touch-control module include multiple touch control electrodes；
Above-mentioned driving circuit.
Compared with prior art, above-mentioned technical proposal has the following advantages：
In the driving method for the OLED display that the embodiment of the present invention is provided, the OLED display includes display
Module and touch-control module positioned at the display module surface, the driving method include：In the display stage, the display mould is given
Anode in the block provides display drive signals, is provided to the cathode in the display module and shows constant signal, controls described aobvious
Show that mould luminescent device in the block is shown；In the touch-control stage, touch-control driving is provided to the touch control electrode in the touch-control module
Signal realizes touch control detection, is simultaneously stopped and provides display drive signals to the anode in the display module and stop to described
Cathode in display module, which provides, shows constant signal, to weaken the display module Anodic and cathode to the touch control electrode
Coupling, to improve the accuracy of detection of touching signals.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
The structural schematic diagram for the OLED display that Fig. 1 is provided by one embodiment of the invention；
The flow diagram of the driving method for the OLED display that Fig. 2 is provided by one embodiment of the invention；
The flow diagram of the driving method for the OLED display that Fig. 3 is provided by another embodiment of the present invention；
The overlooking structure diagram for the OLED display that Fig. 4 is provided by one embodiment of the invention；
The structural schematic diagram of the driving circuit for the OLED display that Fig. 5 is provided by one embodiment of the invention；
The structural schematic diagram of the driving circuit for the OLED display that Fig. 6 is provided by another embodiment of the present invention；
The structural schematic diagram of the driving circuit for the OLED display that Fig. 7 is provided for another embodiment of the invention；
The structural schematic diagram of the driving circuit for the OLED display that Fig. 8 is provided for another embodiment of the invention；
The partial structurtes signal of the driving circuit for the OLED display that Fig. 9 is provided for a specific embodiment of the invention
Figure；
Figure 10 is the drive circuit works sequence diagram of OLED display shown in Fig. 9；
The partial structurtes of the driving circuit for the OLED display that Figure 11 is provided for another specific embodiment of the invention
Schematic diagram；
The structural schematic diagram for the OLED display that Figure 12 is provided by another embodiment of the present invention；
The structural schematic diagram for the OLED display that Figure 13 is provided for another embodiment of the invention；
The structural schematic diagram for the OLED display that Figure 14 is provided for further embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented different from other manner described here using other, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
An embodiment of the present invention provides a kind of driving methods of OLED display.First, driving side for ease of description
Method, the embodiment of the present invention first introduces the structure of the OLED display of driving method application, as shown in Figure 1, the display
Device includes display module 10 and the touch-control module 20 positioned at 10 surface of display module, specifically, the display module 10 includes：Battle array
Row substrate 11；Anode 12 positioned at 11 surface of array substrate；Luminescent device 13 positioned at 12 surface of anode；Positioned at luminescent device 13
The cathode 14 on surface；The touch-control module 20 includes：The first insulation system 21 positioned at 14 surface of cathode；Positioned at the first insulation system
The touch control electrode 22 on 21 surfaces；The second insulation system 23 positioned at 22 surface of touch control electrode.It should be noted that in array substrate
Further include other elements layer, such as grid layer, data line layer, semiconductor layer etc., since it has been ability between 11 and anode 12
Known to field technique personnel, the present invention repeats no more this.
Specifically, as shown in Fig. 2, the driving method of the OLED display includes：
S101：In the display stage, display drive signals are provided to the anode 12 in display module 10, in display module 10
Cathode 14 provide show constant signal, control display module 10 in luminescent device 13 shown, realize display；
S102：In the touch-control stage, stops providing display drive signals to the anode 12 in display module 10, stop to display
Cathode 14 in module 10, which provides, shows constant signal, while providing touch-control driving letter to the touch control electrode 22 in touch-control module 20
Number, realize touch control detection.
It should be noted that the driving method for the OLED display that the embodiment of the present invention is provided, stops in the touch-control stage
Display drive signals only are provided to the anode 12 in display module 10, are simultaneously stopped aobvious to the offer of cathode 14 in display module 10
Show constant signal.Show constant signal and stopping in display module 10 by stopping providing to the cathode 14 in display module 10
Anode 12 provide display drive signals so that anode 12 and cathode 14 in display module 10 are in floating state, to subtract
The coupling of weak anode 12 and cathode 14 to touch control electrode 22 improves the touch control detection precision in touch-control stage.
Further, the present invention also provides another driving methods, as shown in figure 3, this method includes：
S101：In the display stage, display drive signals are provided to the anode 12 in display module 10, in display module 10
Cathode 14 provide show constant signal, control display module 10 in luminescent device 13 shown, realize display；
S102：In the touch-control stage, stops providing display drive signals to the anode 12 in display module 10, stop to display
Cathode 14 in module 10, which provides, shows constant signal, while providing touch-control driving letter to the touch control electrode 22 in touch-control module 20
Number, realize touch control detection；
S103：In the touch-control stage, preset signals are provided to the cathode 14 in display module 10, preset signals correspond to frequency spectrum
Difference between crest frequency crest frequency corresponding with touch-control drive signal is not more than preset value, so that the touch-control stage shows
Signal in module 10 on cathode 14 and the basic same frequency of signal in touch control electrode 22 in touch-control module 20, to further subtract
Coupling of the cathode 14 to touch control electrode 22 in weak display module 10 improves the touch control detection precision in touch-control stage.
On the basis of the above embodiments, in an alternate embodiment of the present invention where, preset value 10%, to ensure to touch
The error of accuracy of detection is controlled in permissible error range；In other embodiments of the invention, preset value can also be other
Value, such as 5%, 8% or 3%, the present invention does not limit this, specifically depends on the circumstances.It should be noted that preset value is got over
Small, the crest frequency crest frequency corresponding with touch-control drive signal that preset signals correspond to frequency spectrum is closer, in display module 10
Signal on cathode 14 is smaller to the signal coupling in touch control electrode 22 in touch-control module 20, and touch control detection precision is higher.
On the basis of the above embodiments, in a preferred embodiment of the invention, preset signals are believed with touch-control driving
Number synchronization improves the touch-control stage to weaken coupling of the cathode 14 to touch control electrode 22 in display module 10 to the greatest extent
Touch control detection precision.
Correspondingly, the embodiment of the present invention additionally provides a kind of driving method provided using any of the above-described embodiment
The driving circuit of OLED display.First, the embodiment of the present invention first introduces the specific location of driving circuit in a display device.
In conjunction with Fig. 1 and Fig. 4, the structural schematic diagram for the OLED display that Fig. 1 is provided by one embodiment of the invention, Fig. 4 is this hair
The overlooking structure diagram for the OLED display that bright one embodiment is provided.Specifically, OLED display includes display
Module 10 and touch-control module 20 positioned at 10 surface of display module, display module 10 include multiple pixel units arranged in arrays
15, driving circuit 30 is used to provide display drive signals to the anode 12 in display module 10 in the display stage, gives display module
Cathode 14 in 10, which provides, shows constant signal, and the luminescent device 13 controlled in display module 10 is shown；And in touch-control rank
Section stops providing display drive signals to the anode 12 in display module 10, stop to display module 10 by controlling switch 16
In cathode 14 provide and show constant signal, while providing touch-control drive signal to the touch control electrode 22 in touch-control module 20, it is real
Existing touch control detection.
Specifically, as shown in figure 5, the driving circuit for the OLED display that Fig. 5 is provided by one embodiment of the invention
Structural schematic diagram.For ease of description, embodiment will be described in conjunction with Fig. 1, Fig. 4 and Fig. 5.One in the present invention is optional
In embodiment, driving circuit 30 includes：
Display driver circuit 31, which includes N number of cascade display driver element 310, each to show
Driving unit 310 includes first input end IN, the first output end OUT1 and second output terminal OUT2；
Control circuit 32, the control circuit 32 include multiple and 310 one-to-one control unit of display driver element
320, which includes first input end IN1, the second input terminal IN2 and output end OUT, wherein control unit 320
First input end IN1 electrical connection display driver element 310 the first output end OUT1, the second input terminal IN2 electrical connections are default
Signal is controlled, the anode 12 of at least one pixel unit 15 corresponding output end OUT is electrically connected, and being used for will in the display stage
The display drive signals that display driver element 310 exports are exported to the anode 12 of its corresponding pixel unit 15, in the touch-control stage,
Stopping exports the display drive signals that display driver element 310 exports to the anode 12 of its corresponding pixel unit 15；
Cathode driving circuit (not shown), it is aobvious for persistently giving the cathode 14 of pixel unit 15 to provide in the display stage
Show constant signal, stops providing display constant signal to the cathode 14 of pixel unit 15 in the touch-control stage；
Touch drive circuit (not shown), in the touch-control stage, being carried to the touch control electrode 22 in touch-control module 20
For touch-control drive signal, touch control detection is realized.
Specifically, the realization method of driving circuit 30 can be with reference chart 6, and Fig. 6 is provided by another embodiment of the present invention
OLED display driving circuit structural schematic diagram.As shown in fig. 6, in an alternate embodiment of the present invention where, the
The external display drive signals of first input end IN of level-one display driver element 3101, the of M grades of display driver element 310M
One input terminal IN is electrically connected with the second output terminal OUT2 of M-1 grades of display driver elements, for the sun for each pixel unit 15
Pole 12 provides display drive signals, wherein M is the positive integer more than 1 and less than N, and N is the positive integer more than 1；It needs to illustrate
It is that in other embodiments of the invention, can be driven with the external displays of the first input end IN of N grades of display driver element 310N
Dynamic signal, the first input end of the second output terminal OUT2 and M-1 grades of display driver elements of M grades of display driver element 310M
IN is electrically connected, and for providing display drive signals for the anode 12 of each pixel unit 15, the present invention does not limit this, specifically
It depends on the circumstances.
It should be noted that in the above-described embodiments, the second output terminal of N grades of display driver elements can be with floating, such as
Shown in Fig. 6；Can also be electrically connected with the first input end of first order display driver element, as shown in fig. 7, the present invention to this not
It limits, specifically depends on the circumstances.
It should also be noted that, in embodiments of the present invention, default control signal is a constant signal, can be by signal source
There is provided, can also be converted by other signals in the driving circuit, the present invention does not limit this, specifically optionally and
It is fixed.
It should be noted that as shown in figure 4, in above-described embodiment, multiple pixel units 15 arranged in arrays are divided into X
A pixel column, each pixel column correspond to a display driver element 310 and a control unit 320, and each pixel unit 15
Corresponding control switch 16, control unit 320 are used to, according to display drive signals and default control signal, it is corresponding to control its
The conducting and cut-off of the control switch 16 of each pixel unit 15 in pixel column, to control whether to provide display driving to anode 12
Signal.Wherein, Fig. 4 illustrates only a kind of connection type of driving circuit 30 and pixel column, i.e., all driving circuits 30
In the side of pixel column.In other realization methods, driving circuit 30 can be located at the both sides of pixel column, i.e. one part of pixel
Row is connect with the driving circuit 30 of side, and another part pixel column is electrically connected with the driving circuit 30 of the other side.
Wherein, for control unit 320 when display drive signals and default control signal are the first level, control unit is defeated
Outlet OUT output control switch Continuity signals, control control switch 16 are connected, display drive signals are exported and give its corresponding picture
Plain unit 15, when at least one signal is second electrical level in display drive signals and default control signal, output end OUT outputs
Control switch ends by signal, control control switch 16, and stopping, which exports display drive signals, gives its corresponding pixel unit
15, the first level and second electrical level are different.
It should be noted that in embodiments of the present invention, each pixel unit 15 can in 320 corresponding pixel column of control unit
To be respectively positioned on same a line, it can also be located at and not go together, can also partly be located at same a line, partly be located at and do not go together, this hair
It is bright that this is not limited, as long as ensureing that control unit 320 is electrically connected a pixel unit 15 in each pixel column.
Based on any of the above embodiments, the embodiment of the present invention additionally provides another driving circuit, such as Fig. 8 institutes
Show, the structural schematic diagram of the driving circuit for the OLED display that Fig. 8 is provided for another of the invention embodiment, the OLED is aobvious
The driving circuit of showing device and the driving circuit of above-mentioned OLED display are not both that driving circuit 30 further includes：
Amplifying circuit 33, amplifying circuit 33 include and 320 one-to-one amplifying unit 330 of control unit, amplifying unit
330 input terminal IN3 is electrically connected with the output end OUT of control unit 320, and output end OUT3 and the control of amplifying unit 330 are opened
The control terminal electrical connection for closing 16, is amplified for the output signal to control unit 320, in order to which control unit 320 exports
Signal can with normal driving control switch 16.
On the basis of the above embodiments, in some specific embodiments of the present invention, amplifying unit is NOT gate.Specifically
Ground, in an alternate embodiment of the present invention where, as shown in figure 9, the OLED that Fig. 9 is provided for a specific embodiment of the invention
The partial structural diagram of the driving circuit of display device, amplifying unit 330 be NOT gate, control unit 320 be with door, in this reality
It applies in example, control switch 16 is P-type TFT, and the first level is high level, and second electrical level is low level.
Specifically, as shown in Figure 10, Figure 10 is the drive circuit works sequence diagram of OLED display shown in Fig. 9, at this
In inventive embodiments, in the display stage：Default control signal is high level signal, the output end OUT1 of display driver element 310
High level signal is exported, the output end OUT2 of display driver element 310 exports low level signal, the output end of control unit 320
OUT exports high level signal, and 330 output end OUT3 of amplifying unit exports low level signal, and control switch 16 is connected.But when
The output end OUT1 of display driver element 310 gives pixel unit 15 input low level signal, the output end of display driver element 310
OUT2 to 15 input high level signal of pixel unit with open in pixel unit 15 other switch when, control unit 320 it is defeated
Outlet OUT exports low level signal, and 330 output end OUT3 of amplifying unit exports high level signal, and control switch 16 ends, prevents
Pixel unit 15 shows abnormal in signal input process.
In the touch-control stage：Default control signal is low level signal, the output end OUT1/OUT2 of display driver element 310
Low level signal is exported, the output end OUT of control unit 320 exports low level signal, 330 output end OUT3 outputs of amplifying unit
High level signal, control switch 16 end, display drive signals are not exported to organic hair in its corresponding pixel unit 15
The anode of optical diode.
In another embodiment of the present invention, as shown in figure 11, Figure 11 is carried by another specific embodiment of the invention
The partial structural diagram of the driving circuit of the OLED display of confession, amplifying unit 330 be NOT gate, control unit 320 be or
Door, control switch 16 are N-type TFT, and the first level is low level, and second electrical level is high level, the present invention to this not
It limits, specifically depends on the circumstances.It should be noted that in embodiments of the present invention, display driver element 310 preferably shifts
Register, but the present invention does not limit this, specifically depends on the circumstances.
In conclusion the driving method and driving circuit of the display device that the embodiment of the present invention is provided, in the display stage,
Display drive signals are provided to the anode 12 in display module 10, is provided to the cathode 14 in display module 10 and shows constant letter
Number, the luminescent device 13 controlled in display module 10 is shown；In the touch-control stage, to the touch control electrode 22 in touch-control module 20
Touch-control drive signal is provided, realizes touch control detection, is simultaneously stopped and provides display drive signals to the anode 12 in display module 10
Constant signal is shown with stopping providing to the cathode 14 in display module 10, to reduce 10 Anodic 12 of display module and cathode 14
Coupling to touch control electrode 22, to improve the accuracy of detection of touching signals.
In addition, the embodiment of the present invention additionally provides a kind of OLED display, as shown in figure 12, which includes：
Display module 10, the display module 10 include：The cathode 14 and anode 12 being oppositely arranged, and it is located at 14 He of cathode
Luminescent device 13 between anode 12；
Touch-control module 20, the touch-control module 20 include multiple touch control electrodes 22, wherein touch control electrode 22 and the display mould
There is the first insulation system 21, touch control electrode 22 to have the second insulation system away from 10 side of the display module between block 10
23；
The driving circuit 30 that any of the above-described embodiment of the present invention is provided.
It should be noted that in embodiments of the present invention, which is used for：In the display stage, display module is given
Anode 12 in 10 provides display drive signals, is provided to the cathode 14 in display module 10 and shows constant signal, control display
Luminescent device 13 in module 10 is shown；In the touch-control stage, stop providing display drive to the anode 12 in display module 10
Dynamic signal stops providing display constant signal to the cathode 14 in display module 10, while to the touch-control electricity in touch-control module 20
Pole 22 provides touch-control drive signal, realizes touch control detection.
On the basis of the above embodiments, in one embodiment of the invention, driving circuit 30 is additionally operable in touch-control rank
Section provides preset signals to the cathode 14 in display module 10, and preset signals correspond to the crest frequency of frequency spectrum and touch-control driving is believed
Difference between number corresponding crest frequency is not more than preset value.Optionally, preset value 10%, to ensure touch control detection precision
Error in permissible error range.More optional, preset signals are synchronous with touch-control drive signal.
It should be noted that due to the drive in the synchronization difference touch control electrode 22 in the touch-control stage, touch-control module 20
Dynamic signal is different, and therefore, when cathode 14 is a monoblock electrode, the drive signal of different location is same signal on cathode 14,
Influence so as to cause the drive signal on cathode 14 to the touch control electrode 22 of different location is different, therefore in any of the above-described embodiment
On the basis of, in one embodiment of the invention, as shown in figure 13, cathode includes multiple cathode electrode units 140, multiple cathode lists
Member 140 is electrically connected, in touch-control rank in the viewing area mutually insulated of OLED display in the non-display area of OLED display
Section, provide different drive signals to cathode electrode unit 140 different in multiple cathode electrode units 140 so that cathode electrode unit 140 and its
22 drive signal of touch control electrode of corresponding position synchronizes, and weakens coupling of the cathode electrode unit 140 to touch control electrode 22, improves
Touch control detection precision.
On the basis of the above embodiments, in one embodiment of the invention, multiple touch control electrodes 22 include multiple drives
Moving electrode and multiple induction electrodes, driving electrodes are arranged in a crossed manner with induction electrode.It should be noted that in the present embodiment, driving
Moving electrode and induction electrode are located at different layers, and in other embodiments of the invention, multiple touch control electrodes 22 may be located on together
One layer, the present invention does not limit this, specifically depends on the circumstances.
On the basis of the above embodiments, in an alternate embodiment of the present invention where, as shown in figure 14, driving electrodes
221 between induction electrode 222 and cathode electrode unit 140, and in other embodiments of the invention, driving electrodes 221 can be with
Deviate from 140 side of cathode electrode unit positioned at induction electrode 222, the present invention does not limit this, specifically depends on the circumstances.
On the basis of the above embodiments, in one embodiment of the invention, multiple cathode electrode units 140 and multiple drivings
Electrode 221 corresponds, and on the direction perpendicular to display device surface, and cathode electrode unit 140 projects corresponding drive
The projection of moving electrode 221 is overlapped mutually and the projection of driving electrodes corresponding with other cathode electrode units 140 221 does not overlap, to ensure
Each driving electrodes 221 correspondences, one cathode electrode unit 140, in the touch-control stage, each driving electrodes 221 be given to correspond to
Cathode electrode unit 140 corresponding with the driving electrodes 221 drive signal is provided, so that it is right both to reduce each cathode electrode unit 140
The influence of its corresponding driving electrodes 221, and each cathode electrode unit 140 is reduced in addition to corresponding driving electrodes 221
Other driving electrodes 221 influence, and then improve the touch control detection precision in touch-control stage to greatest extent.
It should be noted that on the basis of above-mentioned, it is a in one embodiment of the invention, perpendicular to display device
On the direction on surface, the projection of cathode electrode unit 140 can be more than the projection of its corresponding driving electrodes 221, might be less that it
The projection of corresponding driving electrodes 221 can be completely superposed with the projection of corresponding driving electrodes 221, and the present invention is to this
It does not limit, as long as ensureing on the direction perpendicular to display device surface, cathode electrode unit 140 projects corresponding drive
The projection of moving electrode 221 is overlapped mutually and the projection of driving electrodes corresponding with other cathode electrode units 140 221 is not overlapping.
In conclusion the display device that the embodiment of the present invention is provided, including display module 10, touch-control module 20 and driving
Circuit 30, wherein driving circuit 30 provides display drive signals in the display stage, to the anode 12 in display module 10, to aobvious
Show that the cathode 14 in module 10 provides and show constant signal, the luminescent device 13 controlled in display module 10 is shown；And
The touch-control stage provides touch-control drive signal to the touch control electrode 22 in touch-control module 20, realizes touch control detection, is simultaneously stopped to aobvious
Show that the anode 12 in module 10 provides display drive signals and stops providing to the cathode 14 in display module 10 and shows constant letter
Number, to weaken the coupling in 10 Anodic 12 of display module and cathode 14 to touch control electrode 22, to improve touching signals
Accuracy of detection.
Various pieces are described by the way of progressive in this specification, and what each some importance illustrated is and other parts
Difference, just to refer each other for identical similar portion between various pieces.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to embodiment illustrated herein, and is to fit to consistent with the principles and novel features disclosed in this article
Widest range.
Claims (14)
1. a kind of driving method of OLED display, which is characterized in that the OLED display includes display module and position
In the touch-control module of the display module surface, the driving method includes：
In the display stage, display drive signals are provided to the anode in the display module, to the cathode in the display module
It provides and shows that constant signal, the luminescent device controlled in the display module are shown；
In the touch-control stage, stops providing display drive signals to the anode in the display module, stop to the display module
In cathode provide and show constant signal, while providing touch-control drive signal to the touch control electrode in the touch-control module, realize
Touch control detection；
In the touch-control stage, preset signals are provided to the cathode in the display module, the preset signals correspond to the peak value of frequency spectrum
Difference between frequency crest frequency corresponding with the touch-control drive signal is not more than preset value.
2. driving method according to claim 1, which is characterized in that the preset value is 10%.
3. driving method according to claim 2, which is characterized in that the preset signals and the touch-control drive signal are same
Step.
4. a kind of driving circuit of OLED display is applied to claim 1-3 any one of them driving methods, feature
It is, the OLED display includes display module and the touch-control module positioned at the display module surface, wherein described aobvious
Show that multiple pixel units that module includes arranged in arrays, the driving circuit include：
Display driver circuit, the display driver circuit include N number of cascade display driver element, and each display driving is single
Member includes first input end, the first output end and second output terminal, wherein the first input of display driver element described in the first order
Hold external display drive signals, the first input end and the M-1 grades of display driver elements of the M grades of display driver elements
Second output terminal electrical connection, for providing display drive signals for the anode of each pixel unit, wherein the M be more than 1 and
Positive integer less than N, the N are the positive integer more than 1；
Control circuit, the control circuit include multiple and the one-to-one control unit of the display driver element, the control
Unit processed includes first input end, the second input terminal and output end, wherein the first input end of described control unit is electrically connected institute
The first output end of display driver element is stated, the second input terminal is electrically connected default control signal, and output end is corresponding at least
The anode electrical connection of one pixel unit, the display drive signals for exporting the display driver element in the display stage are defeated
Go out to the anode of its corresponding pixel unit, in the touch-control stage, stops the display for exporting the display driver element and drive letter
Number output to its corresponding pixel unit anode；
Cathode driving circuit shows constant signal for persistently giving the cathode of the pixel unit to provide in the display stage,
Stop providing to the cathode of the pixel unit in the touch-control stage and show constant signal, to the cathode in the display module
There is provided preset signals, the preset signals correspond to frequency spectrum crest frequency crest frequency corresponding with the touch-control drive signal it
Between difference be not more than preset value；
Touch drive circuit, in the touch-control stage, touch-control driving letter to be provided to the touch control electrode in the touch-control module
Number, realize touch control detection.
5. driving circuit according to claim 4, which is characterized in that multiple pixel units arranged in arrays divide
At X pixel column, each pixel column corresponds to a display driver element and a described control unit, and each institute
It states pixel unit and corresponds to a control switch, described control unit is used for according to the display drive signals and the default control
Signal controls the conducting and cut-off of the control switch of each pixel unit in its corresponding pixel column；
Wherein, described control unit is when the display drive signals and the default control signal are the first level, control
The display drive signals are exported and give its corresponding described pixel unit by the control switch conduction, are driven in the display
When at least one signal is second electrical level in signal and the default control signal, the control switch cut-off is controlled, stopping will
The display drive signals, which export, gives its corresponding described pixel unit, first level and second electrical level difference.
6. driving circuit according to claim 5, which is characterized in that the driving circuit further includes：
Amplifying circuit, the amplifying circuit include with the one-to-one amplifying unit of described control unit, the amplifying unit
Input terminal is electrically connected with the output end of described control unit, output end with it is described control switch control terminal be electrically connected, be used for pair
The output signal of described control unit is amplified.
7. driving circuit according to claim 6, which is characterized in that the amplifying unit is NOT gate.
8. driving circuit according to claim 7, which is characterized in that described control unit be with door, and it is described control open
When pass is P-type TFT, first level is high level, and the second electrical level is low level.
9. driving circuit according to claim 7, which is characterized in that described control unit is or door, and the control is opened
When pass is N-type TFT, first level is low level, and the second electrical level is high level.
10. a kind of OLED display, which is characterized in that including：
Display module, the display module include：The cathode and anode being oppositely arranged, and it is located at the cathode and the anode
Between luminescent device；
Touch-control module, the touch-control module include multiple touch control electrodes；
Driving circuit described in claim 4-9 any one.
11. OLED display according to claim 10, which is characterized in that the cathode includes multiple cathode electrode units,
The multiple cathode electrode unit the OLED display viewing area mutually insulated, in the non-display of the OLED display
Area is electrically connected.
12. OLED display according to claim 11, which is characterized in that the multiple touch control electrode includes multiple drives
Moving electrode and multiple induction electrodes, the driving electrodes and the induction electrode are arranged in a crossed manner.
13. OLED display according to claim 12, which is characterized in that the driving electrodes are located at the induced electricity
Between pole and the cathode.
14. OLED display according to claim 12, which is characterized in that the multiple cathode electrode unit with it is the multiple
Driving electrodes correspond, and on the direction perpendicular to the display device surface, the projection of a cathode electrode unit with
The projection for projecting the driving electrodes overlapping and corresponding with cathode electrode unit described in other of its corresponding driving electrodes is not
It is overlapping.
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| CN106842660B (en) * | 2017-04-19 | 2020-01-21 | 厦门天马微电子有限公司 | Display panel, driving method and display device |
| CN107424558B (en) * | 2017-06-22 | 2020-04-03 | 上海中航光电子有限公司 | A light-emitting drive circuit and an organic light-emitting display panel |
| CN107272965B (en) * | 2017-07-11 | 2021-09-14 | 京东方科技集团股份有限公司 | Control method and control device of touch display panel and touch display device |
| CN111665980A (en) * | 2020-05-19 | 2020-09-15 | 武汉华星光电半导体显示技术有限公司 | OLED touch display device and driving method thereof |
| CN112130698B (en) | 2020-09-30 | 2022-09-23 | 厦门天马微电子有限公司 | Display panel and display device |
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| CN203288221U (en) * | 2013-06-26 | 2013-11-13 | 京东方科技集团股份有限公司 | AMOLED pixel circuit and display device |
| KR102117342B1 (en) * | 2013-12-19 | 2020-06-01 | 엘지디스플레이 주식회사 | Display device with integrated touch screen and method for driviing thereof |
| CN103680410B (en) * | 2013-12-23 | 2016-01-06 | 京东方科技集团股份有限公司 | Based on the touch-control display drive method of AMOLED |
| CN104503612B (en) * | 2014-12-12 | 2017-11-10 | 上海天马微电子有限公司 | Touch display panel and electronic equipment |
| CN204257176U (en) * | 2014-12-15 | 2015-04-08 | 合肥鑫晟光电科技有限公司 | Image element circuit, display panel and display device |
| CN104485081B (en) * | 2014-12-26 | 2017-07-14 | 上海天马微电子有限公司 | Touch display panel, array substrate and scanning line driving method thereof |
| CN104850270B (en) * | 2015-06-11 | 2017-10-03 | 京东方科技集团股份有限公司 | Driving method, drive circuit, touch module, panel and the device of touch module |
| CN105139804B (en) * | 2015-09-28 | 2018-12-21 | 京东方科技集团股份有限公司 | A kind of pixel-driving circuit, display panel and its driving method and display device |
| CN205121521U (en) * | 2015-11-19 | 2016-03-30 | 京东方科技集团股份有限公司 | Touch screen and display device |
| CN105335033A (en) * | 2015-12-03 | 2016-02-17 | 深圳磨石科技有限公司 | Touch display device and electronic device |
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