CN107170408B - Pixel circuit, driving method, organic electroluminescent display panel and display device - Google Patents
Pixel circuit, driving method, organic electroluminescent display panel and display device Download PDFInfo
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- CN107170408B CN107170408B CN201710498982.5A CN201710498982A CN107170408B CN 107170408 B CN107170408 B CN 107170408B CN 201710498982 A CN201710498982 A CN 201710498982A CN 107170408 B CN107170408 B CN 107170408B
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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]
- G09G3/3225—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] using an active matrix
- G09G3/3233—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] using an active matrix with pixel circuitry controlling the current through the light-emitting element
Abstract
The invention discloses a kind of pixel circuit, its driving method, organic electroluminescent display panel and display devices, in such a way that multiple pixels share identical shared compensating module and common drive module, so as to reduce the average crystalline pipe number of each pixel, in favor of realizing that high-resolution is shown, and then it is advantageously implemented the high PPI that virtual reality display requires.Specifically, pixel circuit includes sharing compensating module, common drive module and at least two light emitting modules；Wherein, compensating module is shared for driving common drive module, and common drive module includes driving transistor；Organic Light Emitting Diode in each light emitting module is connected to the drain electrode of driving transistor by first switch transistor, is carried out with driving current of the timesharing reception after threshold voltage compensation luminous；Organic Light Emitting Diode in each light emitting module is connected to the first reference signal end by second switch transistor, to be resetted when this light emitting module does not shine.
Description
Technical field
The present invention relates to field of computer technology, espespecially a kind of pixel circuit, its driving method, ORGANIC ELECTROLUMINESCENCE DISPLAYS
Panel and display device.
Background technique
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) is current display panel research neck
One of the hot spot in domain is compared with liquid crystal display panel (Liquid Crystal Display, LCD), and OLED display panel has
Low energy consumption, production cost be low, self-luminous, wide viewing angle and the advantages that fast response time.Currently, OLED is aobvious in mobile phone display field
Show that panel has begun and replaces traditional LCD display panel.
Different using stable voltage control brightness from LCD, OLED belongs to electric current driving, and stable electric current is needed to control
It shines.OLED is generally driven to shine by the driving transistor of pixel-driving circuit in OLED display.Wherein, driving is brilliant
When body pipe works, since driving transistor internal existing defects state and driving transistor most of the time are in running order,
Therefore when the source electrode for driving transistor is under same bias for a long time, threshold voltage shift and mobility change can be by
It gradually aggravates, leads to the characteristic drift for driving transistor, it is abnormal so as to cause display, and then influence the stability of display.
Therefore, generally using the threshold voltage V having to driving transistor in OLED display panelthThe picture compensated
Plain circuit come drive OLED shine.To realize threshold voltage compensation function, as shown in FIG. 1, FIG. 1 is pixel electricity in the prior art
The concrete structure schematic diagram on road, pixel circuit mostly use the structure (including 7 switching transistors and 1 capacitor) of 7T1C,
Circuit structure is complex, and transistor size is more.It is multiple in the case where nowadays display resolution (PPI) is increased to 600 or more
Miscellaneous pixel circuit has begun the limit of challenge array (Array) technique.It is required particularly with virtual reality (VR) display etc.
The product of high PPI, current pixel circuit can be excessively complicated, will no longer be applicable in.
Summary of the invention
A kind of pixel circuit, its driving method, organic electroluminescent display panel and display provided in an embodiment of the present invention
Device, to solve the problems, such as that pixel circuit transistor size existing in the prior art is more.
The embodiment of the invention provides a kind of pixel circuits, comprising: shares compensating module, common drive module, Yi Jizhi
Few two light emitting modules；Wherein,
The shared compensating module respectively with the first reference signal end, the first scanning signal end, the second scanning signal end,
One light emitting control end and data signal end electrical connection, for driving the common drive module；
The common drive module includes: driving transistor；The source electrode and first voltage signal end of the driving transistor
Electrical connection, grid are electrically connected with the shared compensating module, and drain electrode is electrically connected with first node；
Each light emitting module includes: first switch transistor, second switch transistor and Organic Light Emitting Diode；It is described
The drain electrode of first switch transistor and the one end with the Organic Light Emitting Diode respectively that drains of the second switch transistor
Electrical connection；The other end of the Organic Light Emitting Diode is electrically connected with second voltage signal end；The first switch transistor
Source electrode is electrically connected with the first node；The source electrode of the second switch transistor is electrically connected with first reference signal end；
The grid of the first switch transistor is electrically connected with the second light emitting control end；The grid and third of the second switch transistor
The electrical connection of light emitting control end；
Second light emitting control end in each light emitting module is different control terminal.
On the other hand, the embodiment of the invention also provides a kind of driving methods of above-mentioned pixel circuit, comprising:
Each frame is shown that the time is divided into and shows the time with the one-to-one subframe of light emitting module in the pixel circuit；
It is shown in the time in every subframe, in initialization and data write phase, it is brilliant to control shared compensating module driving driving
Body pipe, in light emitting phase, the control light emitting module corresponding with the current subframe display time shines, and it is described luminous to control other
Module does not shine.
On the other hand, the embodiment of the invention also provides a kind of organic electroluminescent display panels, comprising: multiple present invention
The above-mentioned pixel circuit that embodiment provides.
On the other hand, the embodiment of the invention also provides a kind of display device, including it is provided in an embodiment of the present invention above-mentioned
Organic electroluminescent display panel.
The present invention has the beneficial effect that:
A kind of pixel circuit, its driving method, organic electroluminescent display panel and display provided in an embodiment of the present invention
Device, it is each so as to reduce in such a way that multiple pixels share identical shared compensating module and common drive module
The average crystalline pipe number of pixel in favor of realizing that high-resolution is shown, and then is advantageously implemented what virtual reality display required
High PPI.Specifically, pixel circuit includes sharing compensating module, common drive module and at least two light emitting modules；Wherein,
Compensating module is shared for driving common drive module, common drive module includes driving transistor；Having in each light emitting module
Machine light emitting diode is connected to the drain electrode of driving transistor by first switch transistor, is received with timesharing and is mended by threshold voltage
Driving current after repaying carries out luminous；Organic Light Emitting Diode in each light emitting module is connected to by second switch transistor
One reference signal end, to be resetted when this light emitting module does not shine.
Detailed description of the invention
Fig. 1 is the concrete structure schematic diagram of pixel circuit in the prior art；
Fig. 2 is a kind of structural schematic diagram of pixel circuit provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another pixel circuit provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another pixel circuit provided in an embodiment of the present invention；
Fig. 5 a is another image element circuit structure schematic diagram provided in an embodiment of the present invention；
Fig. 5 b is another image element circuit structure schematic diagram provided in an embodiment of the present invention；
Fig. 6 a is the corresponding timing diagram of structure shown in Fig. 5 a；
Fig. 6 b is the corresponding timing diagram of structure shown in Fig. 5 b；
Fig. 7 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The pixel circuit of offer, its driving method, organic electroluminescent display panel and display device specific embodiment carry out it is detailed
Carefully illustrate.It should be appreciated that preferred embodiment disclosed below is merely to illustrate and explain the present invention, it is not used to limit this
Invention.And in the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.
Specifically, the embodiment of the invention provides a kind of pixel circuits, as shown in Fig. 2, Fig. 2 provides for the embodiment of the present invention
A kind of pixel circuit structural schematic diagram, specifically include: share compensating module 1, common drive module 2 and at least two
Light emitting module 3；Wherein,
Compensating module 1 is shared to believe with the first reference signal end Vref1, the first scanning signal end Scan1, the second scanning respectively
Number end Scan2, the first light emitting control end E1 and data signal end Data electrical connection, for driving common drive module 2；
Common drive module 2 includes: driving transistor DTFT；Drive the source electrode and first voltage signal end of transistor DTFT
PVDD electrical connection, grid are electrically connected with shared compensating module 1, and drain electrode is electrically connected with first node N1；
Each light emitting module 3 includes: first switch transistor T1, second switch transistor T2 and Organic Light Emitting Diode
OLED；The drain electrode of first switch transistor T1 and the drain electrode of second switch transistor T2 are respectively with Organic Light Emitting Diode OLED's
One end electrical connection；The other end of Organic Light Emitting Diode OLED is electrically connected with second voltage signal end PVEE；First switch crystal
The source electrode of pipe T1 is electrically connected with first node N1；The source electrode of second switch transistor T2 is electrically connected with the first reference signal end Vref1
It connects；The grid of first switch transistor T1 is electrically connected with the second light emitting control end E21 and E22；The grid of second switch transistor T2
Pole is electrically connected with third light emitting control end E3；
The second light emitting control end E21 and E22 in each light emitting module 3 is different control terminal.
Specifically, in above-mentioned pixel circuit provided in an embodiment of the present invention, the corresponding pixel of each light emitting module 3,
In such a way that multiple light emitting modules 3 share identical shared compensating module 1 and common drive module 2, each picture can be reduced
The average crystalline pipe number of element in favor of realizing that high-resolution is shown, and then is advantageously implemented the height that virtual reality display requires
PPI。
It is identical total due to being shared with each light emitting module 3 also, in above-mentioned pixel circuit provided in an embodiment of the present invention
With compensating module 1 and common drive module 2, therefore, it is necessary to drive to each 3 timesharing of light emitting module.Specifically, each hair can be passed through
The conducting of the first switch transistor T1 connected between Organic Light Emitting Diode OLED in optical module 3 and driving transistor DTFT
With the switching time of off state, to switch the luminance of each light emitting module 3.And by being connected to Organic Light Emitting Diode
The second switch transistor T2 connected between OLED and the first reference signal end Vref1 carries out Organic Light Emitting Diode OLED
It resets.
Based on this, in above-mentioned pixel circuit provided in an embodiment of the present invention, needs to control first in each light emitting module 3 and open
The the second light emitting control end E21 and E22 for closing the on and off state of transistor T1 is different control terminal.It is passed through different
LED control signal, to guarantee when the first switch transistor T1 of a light emitting module 3 is in the conductive state, other moulds that shine
First switch transistor T1 in block 3 is in off state.
In this way, making when 3 timesharing of each light emitting module driving in above-mentioned pixel circuit provided in an embodiment of the present invention shines
The fluorescent lifetime for obtaining each light emitting module 3 accounts for N/mono- of original frame fluorescent lifetime, and N is to share identical shared compensating module 1
With the number of the light emitting module 3 of common drive module 2.And in VR is shown, only 10% time is fluorescent lifetime in every frame.Cause
This, in above-mentioned pixel circuit provided in an embodiment of the present invention, by sharing identical shared compensating module 1 and common drive mould
The mode of block 2 realizes that high PPI is shown to reduce transistor size, and bring shortens the Working mould of the fluorescent lifetime of each pixel
Formula variation, will not show VR and impact.Certainly, the embodiment of the present invention is not limited to VR and shows, as long as passing through multiple luminous moulds
Block 3 shares the mode of identical shared compensating module 1 and common drive module 2, is within the scope of the invention.
Also, since the fluorescent lifetime of each light emitting module 3 in above-mentioned pixel circuit provided in an embodiment of the present invention is
N/mono- of the fluorescent lifetime of traditional pixel circuit needs the bright of each light emitting module 3 to guarantee that picture brightness is constant
Degree improves N times.
It is worth noting that, restriction shares identical total in above-mentioned pixel circuit provided in an embodiment of the present invention
With the quantity of compensating module 1 and each light emitting module 3 of common drive module 2, i.e. can have in a pixel circuit such as Fig. 2 and
Two light emitting modules 3 shown in Fig. 3, it is possible to have four light emitting modules 3 as shown in Figure 4, it is not limited here.Although
3 quantity of light emitting module having in one pixel circuit is more, and the average crystalline pipe number of each pixel is fewer, is more advantageously implemented
High PPI shows that still, the fluorescent lifetime of each pixel is shorter, and it is also higher that the brightness of each pixel improves multiple.Therefore, it needs
The quantity of light emitting module 3 in pixel circuit is rationally set according to actual needs.
In the specific implementation, in above-mentioned pixel circuit provided in an embodiment of the present invention, due in each light emitting module 3
One switching transistor T1 and second switch transistor T2 are not simultaneously on state, and therefore, it is necessary to in each light emitting module 3
The the second light emitting control end E21 and E22 and third light emitting control end E3 of control first switch transistor T1 on state are set
It sets.
Specifically, in above-mentioned pixel circuit provided in an embodiment of the present invention, when first switch transistor T1 is N-type crystal
Pipe, second switch transistor T2 are P-type transistor；Alternatively, as shown in figure 3, Fig. 3 is another picture provided in an embodiment of the present invention
The structural schematic diagram of plain circuit, first switch transistor T1 is P-type transistor, when second switch transistor T2 is N-type transistor；
As shown in figure 3, second light emitting control end E21 and E22 and third light emitting control end E3 can be connected in same light emitting module 3
Same control terminal E21 and E22 is met, the number of wires for the control line connecting with control terminal can be saved in this way, to reduce pixel electricity
The circuit layout complexity for the display panel that road is constituted, is advantageously implemented high PPI and shows.
Alternatively, specifically, in above-mentioned pixel circuit provided in an embodiment of the present invention, as shown in Fig. 2, when first switch is brilliant
When body pipe T1 and second switch transistor T2 are P-type transistor；Alternatively, as shown in figure 4, Fig. 4 provides for the embodiment of the present invention
Another pixel circuit structural schematic diagram, when first switch transistor T1 and second switch transistor T2 are N-type crystal
Guan Shi；To save the number of wires of control line connecting with control terminal, to reduce the circuit for the display panel that pixel circuit is constituted
Domain complexity, in favor of realizing that high PPI shows that each third light emitting control end E3 can connect with the first scanning signal end Scan1
Same signal end is connect, this is because the first scanning signal end Scan1 only second is opened when initial phase loads initializing signal
It is in the conductive state simultaneously to close transistor T2, to reset to Organic Light Emitting Diode OLED, and in the hair of each light emitting module 3
The first scanning signal of photophase end Scan1 will not load initializing signal, and thus second switch transistor T2 is in off state；
Alternatively, each third light emitting control end E3 can also connect same signal end with the second scanning signal end Scan2, this is because second
Only when data write phase loads scanning signal, second switch transistor T2 is on shape to scanning signal end Scan2 simultaneously
State, to be resetted to Organic Light Emitting Diode OLED, and at the second scanning signal of light emitting phase end of each light emitting module 3
Scan2 will not load scanning signal, and thus second switch transistor T2 is in off state；Alternatively, each third light emitting control end E3
Same signal end can also be connected with the second light emitting control end E21 or E22 in other light emitting modules 3, this is because at other
The second light emitting control end E21 or E22 in light emitting module 3 is while light emitting phase loads LED control signal, this luminous mould
The second light emitting control end E22 or E21 in block 3 will not load LED control signal, therefore the second switch in this light emitting module 3
Transistor T2 may be on state, and to be resetted to Organic Light Emitting Diode OLED, and in this light emitting module 3
Second hair of the two light emitting control end E21 or E22 while light emitting phase loads LED control signal, in other light emitting modules 3
Photocontrol end E22 or E21 will not load LED control signal, thus the second switch transistor T2 in this light emitting module 3 is in
Off state.
In the specific implementation, it in above-mentioned pixel circuit provided in an embodiment of the present invention, is connect for saving with control terminal
The number of wires of control line, to reduce the circuit layout complexity for the display panel that pixel circuit is constituted, in favor of realizing high PPI
It shows, the same signal end of second voltage signal end PVEE connection in each light emitting module 3, i.e., it is each organic in each light emitting module 3
The same second voltage signal end PVEE of light emitting diode OLED connection.
In the specific implementation, the realization of the shared compensating module 1 in above-mentioned pixel circuit provided in an embodiment of the present invention
There are many structures.For example, as shown in Figure 5 a, Fig. 5 a is another image element circuit structure schematic diagram provided in an embodiment of the present invention,
Share compensating module 1 can specifically include: third switching transistor T3, the 4th switching transistor T4, the 5th switching transistor T5,
6th switching transistor T6 and first capacitor C1；Wherein,
The grid of third switching transistor T3 is electrically connected with the first scanning signal end Scan1, source electrode and the first reference signal
Vref1 electrical connection is held, drain electrode is electrically connected with second node N2；
The grid of 4th switching transistor T4 is electrically connected with the second scanning signal end Scan2, source electrode and data signal end
Data electrical connection, drain electrode are electrically connected with third node N3；
The grid of 5th switching transistor T5 is electrically connected with the second scanning signal end Scan2, source electrode and first node N1 electricity
Connection, drain electrode are electrically connected with second node N2；
The grid of 6th switching transistor T6 is electrically connected with the first light emitting control end E1, source electrode and first voltage signal end
PVDD electrical connection, drain electrode are electrically connected with third node N3；
First capacitor C1 is connected between second node N2 and first voltage signal end PVDD；
The grid of driving transistor DTFT is electrically connected with second node N2, and source electrode is electrically connected with third node N3.
Specifically, it in above-mentioned pixel circuit provided in an embodiment of the present invention, is opened by third switching transistor T3, the 4th
It closes transistor T4, the 5th switching transistor T5, the 6th switching transistor T6 and first capacitor C1 and drives transistor DTFT's
It cooperates, the compensation function to threshold voltage may be implemented, make that transistor DTFT is driven to export to the work of each light emitting module 3
Electric current is unrelated with the threshold voltage of the driving transistor, so as to realize that compensation drives the effect of the threshold voltage shift of transistor
Fruit, and then further avoid the adverse effect due to the drift for driving the threshold voltage of transistor to display.Also, with Fig. 5 a institute
For the pixel circuit shown, when pixel circuit includes two light emitting modules 3, the average crystalline pipe number of each pixel is from existing
Seven become 4.5, be advantageously implemented high PPI and show.
In the specific implementation, the shared compensating module 1 in above-mentioned pixel circuit provided in an embodiment of the present invention is another
Kind structure can be as shown in Figure 5 b, and Fig. 5 b is another image element circuit structure schematic diagram provided in an embodiment of the present invention, comprising: the
Seven switching transistor T7, the 8th switching transistor T8, the 9th switching transistor T9, the tenth switching transistor T10 and the second capacitor
C2；Wherein,
The grid of 7th switching transistor T7 is electrically connected with the first scanning signal end Scan1, source electrode and the first reference signal
Vref1 electrical connection is held, drain electrode is electrically connected with fourth node N4；
The grid of 8th switching transistor T8 is electrically connected with the second scanning signal end Scan2, source electrode and data signal end
Data electrical connection, drain electrode are electrically connected with the 5th node N5；
The grid of 9th switching transistor T9 is electrically connected with the second scanning signal end Scan2, source electrode and first node N1 electricity
Connection, drain electrode are electrically connected with fourth node N4；
The grid of tenth switching transistor T10 is electrically connected with the first light emitting control end E1, source electrode and the second reference signal end
Vref2 electrical connection, drain electrode are electrically connected with the 5th node N5；
Second capacitor C2 is connected between fourth node N4 and the 5th node N5；
The grid of driving transistor DTFT is electrically connected with fourth node N4.
Specifically, it in above-mentioned pixel circuit provided in an embodiment of the present invention, is opened by the 7th switching transistor T7, the 8th
It closes transistor T8, the 9th switching transistor T9, the tenth switching transistor T10 and the second capacitor C2 and drives transistor DTFT's
It cooperates, the compensation function to threshold voltage may be implemented, make that transistor DTFT is driven to export to the work of each light emitting module 3
Electric current is unrelated with the threshold voltage of the driving transistor, so as to realize that compensation drives the effect of the threshold voltage shift of transistor
Fruit, and then further avoid the adverse effect due to the drift for driving the threshold voltage of transistor to display.Also, with Fig. 5 b institute
For the pixel circuit shown, when pixel circuit includes two light emitting modules 3, the average crystalline pipe number of each pixel is from existing
Seven become 4.5, be advantageously implemented high PPI and show.
The above is only illustrate the present invention embodiment offer pixel circuit in share compensating module 1 specific structure,
In the specific implementation, the specific structure for sharing compensating module 1 is not limited to above structure provided in an embodiment of the present invention, can also be
Skilled person will appreciate that other structures, be not limited thereto.
Alternatively, in the specific implementation, the driving crystal mentioned in above-mentioned pixel circuit provided in an embodiment of the present invention
Pipe DTFT and each switching transistor can be designed all using N-type transistor, alternatively, driving transistor DTFT and each switch crystal
Pipe can be designed all using P-type transistor, can simplify the fabrication processing of pixel circuit in this way.
In the specific implementation, in above-mentioned pixel circuit provided in an embodiment of the present invention, N-type transistor is acted in high potential
Lower conducting ends under low potential effect；P-type transistor ends under high potential effect, is connected under low potential effect.
It should be noted that in above-mentioned array substrate provided in an embodiment of the present invention, above-mentioned each driving transistor and each
Switching transistor can be thin film transistor (TFT) (TFT, Thin Film Transistor), be also possible to metal-oxide semiconductor (MOS)
Field-effect tube (MOS, Metal Oxide Scmiconductor), is not limited thereto.In specific implementation, these transistors
Source electrode and drain electrode can be interchanged, do not do specific differentiation.It is to be to drive transistor and transistor all in description specific embodiment
It is illustrated for thin film transistor (TFT).
Separately below for the structure of the pixel circuit shown in Fig. 5 a and Fig. 5 b, combined circuit timing diagram is to of the invention real
The course of work for applying the above-mentioned pixel circuit of example offer is described.High potential is indicated with 1 in described below, and 0 indicates low potential.
It should be noted that 1 and 0 is logic level, merely to preferably explain the specific work process of the embodiment of the present invention, and
It is not the voltage being applied on the grid of each switching transistor in the specific implementation.
Optionally, it is illustrated for the structure of the pixel circuit shown in Fig. 5 a, the electricity of first voltage signal end PVDD
Position is high potential, and the current potential of second voltage signal end PVEE is low potential, and corresponding input and output sequential chart is as shown in Figure 6 a, figure
6a is the corresponding timing diagram of structure shown in Fig. 5 a, and the frame mainly chosen in input and output sequential chart as shown in Figure 6 a is shown
Time.One frame shows that the time is divided into the first subframe and shows that time and the second subframe show the time, and the first subframe shows time and the
Two subframes show that the time is subdivided into initial phase a, data write phase b and light emitting phase c three phases.
The initial phase a, E1=1, Scan1=0, Scan2=1, E21=1, E22=of time are shown in the first subframe
1, E3=Scan1.
Due to Scan1=0, third switching transistor T3 conducting by the first of the first reference signal end Vref1 to join
It examines signal and is supplied to second node N2, make the first reference signal voltage of grid potential for driving transistor DTFT.Due to E3=
0, therefore the second switch transistor T2 conducting in each light emitting module 3 is to believe the first reference of the first reference signal end Vref1
Number it is supplied to each Organic Light Emitting Diode OLED, resets Organic Light Emitting Diode OLED.Due to E1=1, Scan2=1, E21
=1, E22=1, therefore, the 4th switching transistor T4, the 5th switching transistor T5, the 6th switching transistor T6 and each luminous mould
The first switch transistor T1 of block 3 ends.
Data the write phase b, E1=1, Scan1=1, Scan2=0, E21=1, E22 of time are shown in the first subframe
=1, E3=Scan1.
Due to Scan1=1, the second switch transistor T2 in third switching transistor T3 and each light emitting module 3 is cut
Only.Due to Scan2=0, the 4th switching transistor T4 conducting is to be supplied to for the data-signal of data signal end Data
The current potential of three node N3, the 5th switching transistor T5 conductings, second node N2 and first node N1 become Vdata- | Vth |.By
In E1=1, E21=1, E22=1, therefore the first switch transistor T1 of the 6th switching transistor T6 and each light emitting module 3 is cut
Only.
Light emitting phase c, E1=0, Scan1=1, Scan2=1, E21=0, the E22=1 of time are shown in the first subframe,
E3=Scan1.
Due to Scan1=1, the second switch transistor T2 in third switching transistor T3 and each light emitting module 3 is cut
Only.Since Scan2=1, the 4th switching transistor T4 and the 5th switching transistor T5 end.E22=1, therefore the right
The first switch transistor T1 of light emitting module 3 ends, and the light emitting module 3 on the right does not work.Due to E1=0, the 6th switch
Transistor T6 is connected so that the first voltage signal of first voltage signal end PVDD is supplied to third node N3, drives crystal at this time
The Vsg=N3-N2=PVDD-Vdata+ of pipe | Vth |, I=K (Vsg- | Vth |)2=K (PVDD-Vdata)2.Due to E21=0,
Therefore, the first switch transistor T1 conducting of the light emitting module 3 on the left side, so that the operating current of driving transistor DTFT drives a left side
Organic Light Emitting Diode OLED work in the light emitting module 3 on side shines.
The initial phase a, E1=1, Scan1=0, Scan2=1, E21=1, E22=of time are shown in the second subframe
1, E3=Scan1.
Due to Scan1=0, third switching transistor T3 conducting by the first of the first reference signal end Vref1 to join
It examines signal and is supplied to second node N2, make the first reference signal voltage of grid potential for driving transistor DTFT.Due to E3=
0, therefore the second switch transistor T2 conducting in each light emitting module 3 is to believe the first reference of the first reference signal end Vref1
Number it is supplied to each Organic Light Emitting Diode OLED, resets Organic Light Emitting Diode OLED.Due to E1=1, Scan2=1, E21
=1, E22=1, therefore, the 4th switching transistor T4, the 5th switching transistor T5, the 6th switching transistor T6 and each luminous mould
The first switch transistor T1 of block 3 ends.
Data the write phase b, E1=1, Scan1=1, Scan2=0, E21=1, E22 of time are shown in the second subframe
=1, E3=Scan1.
Due to Scan1=1, the second switch transistor T2 in third switching transistor T3 and each light emitting module 3 is cut
Only.Due to Scan2=0, the 4th switching transistor T4 conducting is to be supplied to for the data-signal of data signal end Data
The current potential of three node N3, the 5th switching transistor T5 conductings, second node N2 and first node N1 become Vdata- | Vth |.By
In E1=1, E21=1, E22=1, therefore the first switch transistor T1 of the 6th switching transistor T6 and each light emitting module 3 is cut
Only.
Light emitting phase c, E1=0, Scan1=1, Scan2=1, E21=1, the E22=0 of time are shown in the second subframe,
E3=Scan1.
Due to Scan1=1, the second switch transistor T2 in third switching transistor T3 and each light emitting module 3 is cut
Only.Since Scan2=1, the 4th switching transistor T4 and the 5th switching transistor T5 end.E21=1, therefore the left side
The first switch transistor T1 of light emitting module 3 ends, and the light emitting module 3 on the left side does not work.Due to E1=0, the 6th switch
Transistor T6 is connected so that the first voltage signal of first voltage signal end PVDD is supplied to third node N3, drives crystal at this time
The Vsg=N3-N2=PVDD-Vdata+ of pipe | Vth |, I=K (Vsg- | Vth |)2=K (PVDD-Vdata)2.Due to E22=0,
Therefore, the first switch transistor T1 conducting of the light emitting module 3 on the right, so that the operating current of driving transistor DTFT drives the right side
Organic Light Emitting Diode OLED work in the light emitting module 3 on side shines.
Optionally, it is illustrated for the structure of the pixel circuit shown in Fig. 5 b, the electricity of first voltage signal end PVDD
Position is high potential, and the current potential of second voltage signal end PVEE is low potential, and corresponding input and output sequential chart is as shown in Figure 6 b, figure
6b is the corresponding timing diagram of structure shown in Fig. 5 b, and the frame mainly chosen in input and output sequential chart as shown in Figure 6 b is shown
Time.One frame shows that the time is divided into the first subframe and shows that time and the second subframe show the time, and the first subframe shows time and the
Two subframes show that the time is subdivided into initial phase a, data write phase b and light emitting phase c three phases.
The initial phase a, E1=0, Scan1=0, Scan2=1, E21=1, E22=of time are shown in the first subframe
1, E3=Scan1.
Due to Scan1=0, the 7th switching transistor T7 conducting by the first of the first reference signal end Vref1 to join
It examines signal and is supplied to fourth node N4, make the first reference signal voltage of grid potential for driving transistor DTFT.Due to E3=
0, therefore the second switch transistor T2 conducting in each light emitting module 3 is to believe the first reference of the first reference signal end Vref1
Number it is supplied to each Organic Light Emitting Diode OLED, resets Organic Light Emitting Diode OLED.Due to E1=0, the tenth switch
Transistor T10 is connected so that the second reference signal of the second reference signal end Vref2 is supplied to the 5th node N5.Due to Scan2
=1, E21=1, E22=1, therefore the first of the 8th switching transistor T8, the 9th switching transistor T9 and each light emitting module 3 opens
Close transistor T1 cut-off.
Data the write phase b, E1=1, Scan1=1, Scan2=0, E21=1, E22 of time are shown in the first subframe
=1, E3=Scan1.
Due to Scan1=1, the second switch transistor T2 in the 7th switching transistor T7 and each light emitting module 3 is cut
Only.Due to Scan2=0, the 8th switching transistor T8 conducting is to be supplied to for the data-signal of data signal end Data
Five node N5, the 9th switching transistor T9 conductings, make fourth node N4 and the current potential of first node N1 become PVDD- | Vth |.By
In E1=1, E21=1, E22=1, therefore the first switch transistor T1 of the tenth switching transistor T10 and each light emitting module 3 is cut
Only.
Light emitting phase c, E1=0, Scan1=1, Scan2=1, E21=0, the E22=1 of time are shown in the first subframe,
E3=Scan1.
Due to Scan1=1, the second switch transistor T2 in the 7th switching transistor T7 and each light emitting module 3 is cut
Only.Since Scan2=1, the 8th switching transistor T8 and the 9th switching transistor T9 end.E22=1, therefore the right
The first switch transistor T1 of light emitting module 3 ends, and the light emitting module 3 on the right does not work.Due to E1=0, the tenth switch
Transistor T10 is connected so that the second reference signal of the second reference signal end Vref2 is supplied to the 5th node N5, due to the second electricity
Hold the boot strap of C2, the current potential of fourth node becomes PVDD- | Vth |-Vdata+Vref2 drives the Vsg=of transistor at this time
PVDD-N4=| Vth |+Vdata-Vref2, I=K (Vsg- | Vth |)2=K (Vdata-Vref2)2.Due to E21=0,
The first switch transistor T1 of the light emitting module 3 on the left side is connected, so that the operating current driving left side of driving transistor DTFT
Organic Light Emitting Diode OLED work in light emitting module 3 shines.
The initial phase a, E1=0, Scan1=0, Scan2=1, E21=1, E22=of time are shown in the second subframe
1, E3=Scan1.
Due to Scan1=0, the 7th switching transistor T7 conducting by the first of the first reference signal end Vref1 to join
It examines signal and is supplied to fourth node N4, make the first reference signal voltage of grid potential for driving transistor DTFT.Due to E3=
0, therefore the second switch transistor T2 conducting in each light emitting module 3 is to believe the first reference of the first reference signal end Vref1
Number it is supplied to each Organic Light Emitting Diode OLED, resets Organic Light Emitting Diode OLED.Due to E1=0, the tenth switch
Transistor T10 is connected so that the second reference signal of the second reference signal end Vref2 is supplied to the 5th node N5.Due to Scan2
=1, E21=1, E22=1, therefore the first of the 8th switching transistor T8, the 9th switching transistor T9 and each light emitting module 3 opens
Close transistor T1 cut-off.
Data the write phase b, E1=1, Scan1=1, Scan2=0, E21=1, E22 of time are shown in the second subframe
=1, E3=Scan1.
Due to Scan1=1, the second switch transistor T2 in the 7th switching transistor T7 and each light emitting module 3 is cut
Only.Due to Scan2=0, the 8th switching transistor T8 conducting is to be supplied to for the data-signal of data signal end Data
Five node N5, the 9th switching transistor T9 conductings, make fourth node N4 and the current potential of first node N1 become PVDD- | Vth |.By
In E1=1, E21=1, E22=1, therefore the first switch transistor T1 of the tenth switching transistor T10 and each light emitting module 3 is cut
Only.
Light emitting phase c, E1=0, Scan1=1, Scan2=1, E21=1, the E22=0 of time are shown in the second subframe,
E3=Scan1.
Due to Scan1=1, the second switch transistor T2 in the 7th switching transistor T7 and each light emitting module 3 is cut
Only.Since Scan2=1, the 8th switching transistor T8 and the 9th switching transistor T9 end.E21=1, therefore the left side
The first switch transistor T1 of light emitting module 3 ends, and the light emitting module 3 on the left side does not work.Due to E1=0, the tenth switch
Transistor T10 is connected so that the second reference signal of the second reference signal end Vref2 is supplied to the 5th node N5, due to the second electricity
Hold the boot strap of C2, the current potential of fourth node becomes PVDD- | Vth |-Vdata+Vref2 drives the Vsg=of transistor at this time
PVDD-N4=| Vth |+Vdata-Vref2, I=K (Vsg- | Vth |)2=K (Vdata-Vref2)2.Due to E22=0,
The first switch transistor T1 of the light emitting module 3 on the right is connected, so that operating current driving the right of driving transistor DTFT
Organic Light Emitting Diode OLED work in light emitting module 3 shines.
Based on the same inventive concept, the embodiment of the invention also provides a kind of driving methods of pixel circuit, comprising:
Each frame is shown that the time is divided into and shows the time with the one-to-one subframe of light emitting module in pixel circuit；Such as
Shown in Fig. 6 a and Fig. 6 b, when the light emitting module in corresponding pixel circuit is two, each frame is shown that the time is divided into first
Subframe shows that time and the second subframe show the time；
It is shown in the time in every subframe, in initialization and data write phase, it is brilliant to control shared compensating module driving driving
Body pipe, in light emitting phase, control light emitting module corresponding with the current subframe display time shines, controls other light emitting modules and do not send out
Light.
In the specific implementation, in the driving method of above-mentioned pixel circuit provided in an embodiment of the present invention, work as pixel circuit
Shared compensating module 1 include: as shown in Figure 5 a third switching transistor T3, the 4th switching transistor T4, the 5th switch crystal
When pipe T5, the 6th switching transistor T6 and first capacitor C1, driving method specifically includes as shown in Figure 6 a:
Every subframe shows the initial phase a of time, provides the first level signal to the first scanning signal end Scan1, to
Second scanning signal end Scan2 provides second electrical level signal, provides second electrical level signal, Xiang Ge to the first light emitting control end E1
Two light emitting control end E21 and E22 provide second electrical level signal；
Every subframe shows the data write phase b of time, provides second electrical level signal to the first scanning signal end Scan1,
The first level signal is provided to the second scanning signal end Scan2, second electrical level signal is provided to the first light emitting control end E1, to each
Second light emitting control end E21 and E22 provides second electrical level signal；
Every subframe shows the light emitting phase c of time, provides second electrical level signal to the first scanning signal end Scan1, to the
Two scanning signal end Scan2 provide second electrical level signal, to the first light emitting control end E1 provide the first level signal, to it is current
Subframe shows that the second light emitting control end E21 or E22 in time corresponding light emitting module 3 provide the first level signal, to other
The second light emitting control end E22 or E21 in light emitting module provide second electrical level signal.
In the specific implementation, in the driving method of above-mentioned pixel circuit provided in an embodiment of the present invention, work as pixel circuit
Shared compensating module 1 as shown in Figure 5 b include: the 7th switching transistor T7, the 8th switching transistor T8, the 9th switch crystal
When pipe T9, the tenth switching transistor T10 and the second capacitor C2, driving method specifically includes as shown in Figure 6 b:
Every subframe shows the initial phase a of time, provides the first level signal to the first scanning signal end Scan1, to
Second scanning signal end Scan2 provides second electrical level signal, provides the first level signal, Xiang Ge to the first light emitting control end E1
Two light emitting control end E21 and E22 provide second electrical level signal；
Every subframe shows the data write phase b of time, provides second electrical level signal to the first scanning signal end Scan1,
The first level signal is provided to the second scanning signal end Scan2, second electrical level signal is provided to the first light emitting control end E1, to each
Second light emitting control end E21 and E22 provides second electrical level signal；
Every subframe shows the light emitting phase c of time, provides second electrical level signal to the first scanning signal end Scan1, to the
Two scanning signal end Scan2 provide second electrical level signal, to the first light emitting control end E1 provide the first level signal, to it is current
Subframe shows that the second light emitting control end E21 or E22 in time corresponding light emitting module 3 provide the first level signal, to other
The second light emitting control end E22 or E21 in light emitting module 3 provide second electrical level signal.
Optionally, the first level signal in the driving method of above-mentioned pixel circuit can be high potential signal, corresponding
Ground, second electrical level signal are low-potential signal；Or conversely, as shown in figures 6 a and 6b, the first level signal can be low electricity
Position signal, accordingly, second electrical level signal are high potential signal, specific to need according to switching transistor to be N-type transistor or P
Depending on transistor npn npn.
Optionally, in the driving method of above-mentioned pixel circuit provided in an embodiment of the present invention, in order to guarantee each luminous mould
Block fluorescent lifetime having the same, preferably, every subframe shows that the duration of time is set as identical.
Based on the same inventive concept, the embodiment of the invention also provides a kind of organic electroluminescent display panels, comprising: more
A above-mentioned pixel circuit provided in an embodiment of the present invention.The principle and aforementioned pixel electricity that the organic light emitting display panel solves the problems, such as
Road is similar, therefore the implementation of the organic light emitting display panel may refer to the implementation of aforementioned pixel circuit, repeats place herein not
It repeats again.
In the specific implementation, in above-mentioned organic electroluminescent display panel provided in an embodiment of the present invention, for the ease of
Practical structures Butut, each light emitting module in pixel circuit may belong to go adjacent multiple pixels, such as wrap in pixel circuit
Two light emitting modules contained may belong to two pixels adjacent in same a line, then shows the first subframe in the time in each frame
Display time and the second subframe show that the number of lines of pixels to shine in the time becomes the half of original screen line number, if keeping every row
Sweep time is constant, then every frame shows that the time is constant in entire screen.Alternatively, each light emitting module in pixel circuit can also belong to
It may belong to adjacent in same row two in the adjacent multiple pixels of column, such as two light emitting modules for including in pixel circuit
Pixel then shows that the first subframe in the time shows that time and the second subframe show the number of lines of pixels to shine in the time in each frame
It is constant, but every subframe shows that the pixel columns to shine in the time becomes the half of original screen columns, it is possible to reduce the number of half
According to line number amount, if being kept for per horizontal-scanning interval constant, every frame shows that the time becomes original twice in entire screen.Or
Person, each light emitting module in pixel circuit can also belong to simultaneously arranges multiple pixels adjacent and that row is adjacent, such as pixel circuit
In include four light emitting modules may belong to two pixels adjacent in adjacent rows, then show the in the time in each frame
One subframe shows that time to the 4th subframe shows that the number of lines of pixels to shine in the time becomes the half of original screen line number, and every son
Frame shows that the pixel columns to shine in the time becomes the half of original screen columns, it is possible to reduce the data line quantity of half, such as
Fruit is kept for per horizontal-scanning interval constant, then every frame shows that the time is constant in entire screen.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, as shown in fig. 7, Fig. 7 is this hair
A kind of structural schematic diagram for display device that bright embodiment provides, including ORGANIC ELECTROLUMINESCENCE DISPLAYS provided in an embodiment of the present invention
Panel.The display device can be with are as follows: mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator
Etc. any products or components having a display function.Other essential component parts for the display device are ability
The those of ordinary skill in domain should be understood that have, and this will not be repeated here, also should not be taken as limiting the invention.Display dress
The implementation set may refer to the embodiment of above-mentioned array substrate, and overlaps will not be repeated.
Above-mentioned pixel circuit, its driving method, organic electroluminescent display panel and display provided in an embodiment of the present invention
Device, it is each so as to reduce in such a way that multiple pixels share identical shared compensating module and common drive module
The average crystalline pipe number of pixel in favor of realizing that high-resolution is shown, and then is advantageously implemented what virtual reality display required
High PPI.Specifically, pixel circuit includes sharing compensating module, common drive module and at least two light emitting modules；Wherein,
Compensating module is shared for driving common drive module, common drive module includes driving transistor；Having in each light emitting module
Machine light emitting diode is connected to the drain electrode of driving transistor by first switch transistor, is received with timesharing and is mended by threshold voltage
Driving current after repaying carries out luminous；Organic Light Emitting Diode in each light emitting module is connected to by second switch transistor
One reference signal end, to be resetted when this light emitting module does not shine.
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 pixel circuit characterized by comprising share compensating module, common drive module and at least two shine
Module；Wherein,
The shared compensating module is sent out with the first reference signal end, the first scanning signal end, the second scanning signal end, first respectively
Photocontrol end and data signal end electrical connection, for driving the common drive module；
The common drive module includes: driving transistor；The source electrode of the driving transistor is electrically connected with first voltage signal end
Connect, grid is electrically connected with the shared compensating module, drain electrode be electrically connected with first node；
Each light emitting module includes: first switch transistor, second switch transistor and Organic Light Emitting Diode；Described first
The one end of the drain electrode of switching transistor and the drain electrode of the second switch transistor respectively with the Organic Light Emitting Diode is electrically connected
It connects；The other end of the Organic Light Emitting Diode is electrically connected with second voltage signal end；The source electrode of the first switch transistor
It is electrically connected with the first node；The source electrode of the second switch transistor is electrically connected with first reference signal end；It is described
The grid of first switch transistor is electrically connected with the second light emitting control end；The grid and third of the second switch transistor shine
Control terminal electrical connection；
Second light emitting control end in each light emitting module is different control terminal.
2. pixel circuit as described in claim 1, which is characterized in that the first switch transistor is N-type transistor, described
Second switch transistor is P-type transistor；Or, the first switch transistor is P-type transistor, the second switch transistor
For N-type transistor；
Second light emitting control end in the same light emitting module connect same control with third light emitting control end
End.
3. pixel circuit as described in claim 1, which is characterized in that the first switch transistor and the second switch are brilliant
Body pipe is P-type transistor；Or, the first switch transistor and the second switch transistor are N-type transistor；
Each third light emitting control end connects same signal end with first scanning signal end；Or, each third shines
Control terminal connects same signal end with second scanning signal end；Or, each third light emitting control end and other described hairs
Second light emitting control end in optical module connects same signal end.
4. pixel circuit as described in claim 1, which is characterized in that the second voltage signal end in each light emitting module connects
Connect same signal end.
5. pixel circuit according to any one of claims 1-4, which is characterized in that the shared compensating module, comprising: third
Switching transistor, the 4th switching transistor, the 5th switching transistor, the 6th switching transistor and first capacitor；Wherein,
The grid of the third switching transistor is electrically connected with first scanning signal end, source electrode and first reference signal
End electrical connection, drain electrode are electrically connected with second node；
The grid of 4th switching transistor is electrically connected with second scanning signal end, source electrode and data signal end electricity
Connection, drain electrode are electrically connected with third node；
The grid of 5th switching transistor is electrically connected with second scanning signal end, and source electrode is electrically connected with the first node
It connects, drain electrode is electrically connected with the second node；
The grid of 6th switching transistor is electrically connected with first light emitting control end, source electrode and the first voltage signal
End electrical connection, drain electrode are electrically connected with the third node；
The first capacitor is connected between the second node and the first voltage signal end；
The grid of the driving transistor is electrically connected with the second node, and source electrode is electrically connected with the third node.
6. pixel circuit according to any one of claims 1-4, which is characterized in that the shared compensating module, comprising: the 7th
Switching transistor, the 8th switching transistor, the 9th switching transistor, the tenth switching transistor and the second capacitor；Wherein,
The grid of 7th switching transistor is electrically connected with first scanning signal end, source electrode and first reference signal
End electrical connection, drain electrode are electrically connected with fourth node；
The grid of 8th switching transistor is electrically connected with second scanning signal end, source electrode and data signal end electricity
Connection, drain electrode are electrically connected with the 5th node；
The grid of 9th switching transistor is electrically connected with second scanning signal end, and source electrode is electrically connected with the first node
It connects, drain electrode is electrically connected with the fourth node；
The grid of tenth switching transistor is electrically connected with first light emitting control end, source electrode and the second reference signal end electricity
Connection, drain electrode are electrically connected with the 5th node；
Second capacitance connection is between the fourth node and the 5th node；
The grid of the driving transistor is electrically connected with the fourth node.
7. a kind of driving method of pixel circuit as claimed in any one of claims 1 to 6 characterized by comprising
Each frame is shown that the time is divided into and shows the time with the one-to-one subframe of light emitting module in the pixel circuit；
It is shown in the time in every subframe, in initialization and data write phase, controls and share compensating module driving driving transistor,
In light emitting phase, the control light emitting module corresponding with the current subframe display time shines, and controls other light emitting modules
It does not shine.
8. driving method as claimed in claim 7, which is characterized in that when the shared compensating module of the pixel circuit includes:
It is described when third switching transistor, the 4th switching transistor, the 5th switching transistor, the 6th switching transistor and first capacitor
Driving method specifically includes:
Every subframe shows the initial phase of time, and the first scanning signal end Xiang Suoshu provides the first level signal, Xiang Suoshu the
Two scanning signal ends provide second electrical level signal, and the first light emitting control end Xiang Suoshu provides second electrical level signal, to each described the
Two light emitting control ends provide second electrical level signal；
Every subframe shows the data write phase of time, and the first scanning signal end Xiang Suoshu provides second electrical level signal, Xiang Suoshu
Second scanning signal end provides the first level signal, and the first light emitting control end Xiang Suoshu provides second electrical level signal, to each described
Second light emitting control end provides second electrical level signal；
Every subframe shows the light emitting phase of time, and the first scanning signal end Xiang Suoshu provides second electrical level signal, Xiang Suoshu second
Scanning signal end provide second electrical level signal, the first light emitting control end Xiang Suoshu provide the first level signal, to current subframe
Show that second light emitting control end in the time corresponding light emitting module provides the first level signal, to hair described in other
Second light emitting control end in optical module provides second electrical level signal.
9. driving method as claimed in claim 7, which is characterized in that when the shared compensating module of the pixel circuit includes:
It is described when the 7th switching transistor, the 8th switching transistor, the 9th switching transistor, the tenth switching transistor and the second capacitor
Driving method specifically includes:
Every subframe shows the initial phase of time, and the first scanning signal end Xiang Suoshu provides the first level signal, Xiang Suoshu the
Two scanning signal ends provide second electrical level signal, and the first light emitting control end Xiang Suoshu provides the first level signal, to each described the
Two light emitting control ends provide second electrical level signal；
Every subframe shows the data write phase of time, and the first scanning signal end Xiang Suoshu provides second electrical level signal, Xiang Suoshu
Second scanning signal end provides the first level signal, and the first light emitting control end Xiang Suoshu provides second electrical level signal, to each described
Second light emitting control end provides second electrical level signal；
Every subframe shows the light emitting phase of time, and the first scanning signal end Xiang Suoshu provides second electrical level signal, Xiang Suoshu second
Scanning signal end provide second electrical level signal, the first light emitting control end Xiang Suoshu provide the first level signal, to current subframe
Show that second light emitting control end in the time corresponding light emitting module provides the first level signal, to hair described in other
Second light emitting control end in optical module provides second electrical level signal.
10. such as the described in any item driving methods of claim 7-9, which is characterized in that every subframe shows that the duration of time is identical.
11. a kind of organic electroluminescent display panel characterized by comprising multiple as claimed in any one of claims 1 to 6
Pixel circuit.
12. organic electroluminescent display panel as claimed in claim 11, which is characterized in that each hair in the pixel circuit
Optical module belongs to the adjacent multiple pixels of row；Or, each light emitting module in the pixel circuit, which belongs to, arranges adjacent multiple pixels；
Or, each light emitting module in the pixel circuit, which belongs to, arranges multiple pixels adjacent and that row is adjacent.
13. a kind of display device, which is characterized in that including the ORGANIC ELECTROLUMINESCENCE DISPLAYS face as described in claim 11 or 12
Plate.
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| CN203941676U (en) * | 2014-06-27 | 2014-11-12 | 京东方科技集团股份有限公司 | Image element circuit, display panel and display device |
| CN104167177A (en) * | 2014-08-15 | 2014-11-26 | 合肥鑫晟光电科技有限公司 | Pixel circuit, organic electroluminescence display panel and display device |
| CN104505020A (en) * | 2014-12-16 | 2015-04-08 | 南京中电熊猫液晶显示科技有限公司 | Pixel compensation structure of AM-OLED (active matrix organic light emitting diode) display and driving method for pixel compensation structure |
| CN105405395B (en) * | 2016-01-04 | 2017-11-17 | 京东方科技集团股份有限公司 | A kind of dot structure, its driving method and related display apparatus |
| CN106409225B (en) * | 2016-12-09 | 2019-03-01 | 上海天马有机发光显示技术有限公司 | Organic light emissive pixels compensation circuit, organic light emitting display panel and driving method |
| CN106847187B (en) * | 2017-03-01 | 2019-04-05 | 上海天马有机发光显示技术有限公司 | A kind of electric current detecting method of pixel circuit, display panel and display device |
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