CN106952613B - The driving method of OLED pixel circuit, display device and OLED pixel circuit - Google Patents
The driving method of OLED pixel circuit, display device and OLED pixel circuit Download PDFInfo
- Publication number
- CN106952613B CN106952613B CN201710387719.9A CN201710387719A CN106952613B CN 106952613 B CN106952613 B CN 106952613B CN 201710387719 A CN201710387719 A CN 201710387719A CN 106952613 B CN106952613 B CN 106952613B
- Authority
- CN
- China
- Prior art keywords
- transistor
- pole
- voltage
- electrically connected
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 25
- 239000013078 crystal Substances 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 6
- 230000003760 hair shine Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 23
- 238000005516 engineering process Methods 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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]
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The present invention describes a kind of OLED pixel circuit, include: the first transistor, second transistor, third transistor, the 4th transistor, the 5th transistor, the 6th transistor, storage capacitance and luminescent device, wherein, second pole of the first transistor and the second pole of the second transistor are electrically connected to first node, second pole of the third transistor and the storage capacitance are electrically connected to second node, and the first pole of the 4th transistor and the second pole of the 5th transistor are electrically connected to third node；The grid of 6th transistor is electrically connected fourth signal end, and the first pole of the 6th transistor is electrically connected low level signal, and the second pole of the 6th transistor is electrically connected the grid of the 5th transistor；The storage capacitance is electrically connected between the second node and the third node；The cathode of the organic luminescent device is electrically connected second source voltage.Improve the suspension joint of driving transistor, improves organic luminescent device stability and contrast.
Description
Technical field
The present invention relates to OLED pixel circuit, the display device comprising the OLED pixel circuit and this is driven to have
The driving method of machine light emitting pixel circuit.
Background technique
With rapidly improving for display technology, the semiconductor component technology as display device core is also flown therewith
The progress of jump property.For existing display device, Organic Light Emitting Diode (Organic Light Emitting
Diode, OLED) it is used as a kind of current mode luminescent device, because of its self-luminous, quick response, wide viewing angle and can make
On flexible substrates the features such as and be applied in high-performance display field more and more.Then as the urgency of display technology
Speed progress, people are also higher and higher to the effect requirements of display device, such as high contrast, high stability, low-power consumption etc..
Referring to Fig.1 and 2, Fig. 1 is a kind of existing OLED pixel circuit driving principle figure, Fig. 2 is that Fig. 1 is organic
The timing diagram of light emitting pixel circuit drive method.It include the first transistor M1, second transistor M2, third transistor in Fig. 1
M3, the 4th transistor M4 and the 5th transistor M5 and storage capacitance Cst.
In light emitting phase, second transistor M2, the 4th transistor M4, the 5th transistor M5 conducting, organic luminescent device hair
Light；
In the P1 stage: the first transistor M1, second transistor M2, third transistor M3, the 5th transistor M5 are closed, and the 4th
Transistor M4 conducting, storage capacitance Cst are disconnected, and shine cut-off；
In the P2 stage: the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M5 are closed, and the 4th
Transistor M4 is opened, and the voltage of data signal end Vdata becomes high voltage；
In the P3 stage: the first transistor M1, third transistor M3, the 4th transistor M4 conducting, second transistor M2 are closed,
N1 node voltage becomes V0, and N2 node voltage becomes Vdata high voltage；
In the P4 stage: the first transistor M1, third transistor M3 conducting, second transistor M2, the 4th transistor M4, the 5th
Transistor M5 is closed, and carries out the compensation of threshold voltage and the write-in of data-signal at this time, and N3 node voltage becomes V0-Vth；
In the P5 stage: the first transistor to the 5th transistor contract fully, N1 node voltage become V0, and N2 node becomes
Vdata high voltage, N3 node become V0-Vth；
In the P6 stage: the first transistor to the 5th transistor contract fully, Vdata voltage become low level；
In the P7 stage: second transistor M2 and the 5th transistor M5 conducting, the first transistor M1, third transistor M3, the
Five transistor M5 are closed, and N1 node voltage becomes Vdata high level；Repeat light emitting phase later, carries out luminous.
Inventor carries out analog simulation to above-mentioned organic light emissive pixels driving circuit, it is found that existing organic light emissive pixels drive
Dynamic circuit and working sequence have a problem in that
1. giving data-signal high level, reset compensated stage is being carried out, organic luminescent device anode tap has voltage, and this
A voltage has fluctuation, this has seriously affected the stability of display effect, is also easy to produce scintillation.
2. carrying out reset compensated stage to low level to data-signal.The anode tap of organic luminescent device has voltage, this
The dark-state that will affect display panel, the phenomenon for be easy to causeing dark-state not dark enough, to reduce the contrast of display panel.
3. second transistor M2 is closed in the P3 stage, other transistors are all connected, and carry out the compensation and data of threshold voltage
The write-in of signal, but access is formd in this stage organic luminescent device, cause organic luminescent device to shine.
4. in P1, P2, P5 and P6 stage, since the first transistor M1 and second transistor M2 are turned off, first node N1
Voltage it is unknown, the grid of the 5th transistor M5 will appear suspension joint, this seriously affected the working performance of the 5th transistor M5 with
And stability.It should be noted that so-called suspension joint problem refer to transistor grid electrical connection between the two nodes, when this two
When the voltage of a node is unknown, cause the grid voltage unknown.
Summary of the invention
In view of this, the present invention provides a kind of OLED pixel circuit, display device and OLED pixel circuit
Driving method.
In a first aspect, the embodiment of the present invention provides a kind of OLED pixel circuit, include:
The first transistor, third transistor, the 4th transistor, the 5th transistor, the 6th transistor, is deposited second transistor
Storage holds and luminescent device, wherein the second pole of the first transistor and the second pole electrical connection of the second transistor
In first node, the second pole of the third transistor and the storage capacitance are electrically connected to second node, the 4th crystal
First pole of pipe and the second pole of the 5th transistor are electrically connected to third node；
The grid of the first transistor is electrically connected the first signal end, the first pole electrical connection first of the first transistor
Voltage, the second pole of the second pole electrical connection second transistor of the first transistor；
The grid of the second transistor is electrically connected second signal end, described in the first pole electrical connection of the second transistor
Second pole of third transistor；
The grid of the third transistor is electrically connected the first signal end, and the first pole of the third transistor is electrically connected data
Signal end；
The grid of 4th transistor is electrically connected third signal end, the first pole electrical connection the 5th of the 4th transistor
Second pole of the second pole of transistor, the 4th transistor is electrically connected the anode of the organic luminescent device；
5th transistor is driving transistor, and the grid of the 5th transistor is electrically connected the first node, institute
The first pole for stating the 5th transistor is electrically connected the first supply voltage；
The grid of 6th transistor is electrically connected fourth signal end, and the first pole of the 6th transistor is electrically connected low electricity
Second pole of ordinary mail number, the 6th transistor is electrically connected the grid of the 5th transistor；
The storage capacitance is electrically connected between the second node and the third node；
The cathode of the organic luminescent device is electrically connected second source voltage.
Second aspect, the embodiment of the present invention also provide a kind of display device, include organic light emission picture described in first aspect
Plain circuit.
The third aspect, the embodiment of the present invention are also provided with the driving method of machine light emitting pixel circuit, driving appeal first party
OLED pixel circuit described in face.
Detailed description of the invention
Fig. 1 is a kind of existing OLED pixel circuit schematic diagram；
Fig. 2 is existing a kind of driving method timing diagram of OLED pixel circuit in Fig. 1；
Fig. 3 is a kind of OLED pixel circuit schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another OLED pixel circuit schematic diagram provided in an embodiment of the present invention；
Fig. 5 is another OLED pixel circuit schematic diagram provided in an embodiment of the present invention；
Fig. 6 is another OLED pixel circuit schematic diagram provided in an embodiment of the present invention；
Fig. 7 is another OLED pixel circuit schematic diagram provided in an embodiment of the present invention；
Fig. 8 is a kind of driving method timing diagram of OLED pixel circuit provided in an embodiment of the present invention；
Fig. 9 is the driving method timing diagram of another OLED pixel circuit provided in an embodiment of the present invention；
Figure 10 is the driving method timing diagram of another OLED pixel circuit provided in an embodiment of the present invention；
Figure 11 is a kind of organic light-emitting display device schematic diagram provided in an embodiment of the present invention.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with attached drawing and implementation
The present invention will be further described for example.However, example embodiment can be implemented in a variety of forms, and it is not understood as limited to
Embodiment set forth herein；On the contrary, these embodiments are provided so that the present invention more comprehensively and completely, and by example embodiment party
The design of formula is comprehensively communicated to those skilled in the art.Identical appended drawing reference indicates same or similar knot in figure
Structure, thus repetition thereof will be omitted.The word of expression position and direction described in the present invention, is to be with attached drawing
The explanation that example carries out, but can also make a change as needed, done change is all contained in the scope of the present invention.The present invention
Attached drawing be only used for signal relative positional relationship, the thickness at certain positions uses the plotting mode lavished praise on oneself in order to understand, attached
Thickness in figure does not represent the proportionate relationship of practical thickness.
It should be noted that elaborating detail in the following description to fully understand the present invention.But this hair
Bright to be different from other way described herein with a variety of and be implemented, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case where culvert.Therefore the present invention is not limited by following public specific embodiment.Such as in specification and
Some vocabulary has been used in claim to censure specific components.Those skilled in the art should understand that hardware manufacturer can
The same component can be called with different nouns.This specification and claims are not with the difference of title as differentiation group
The mode of part, but with the difference of component functionally as the criterion of differentiation.Such as in the whole text, specification and claim are worked as
Mentioned in "comprising" be an open language, therefore should be construed to " including but not limited to ".Specification subsequent descriptions are real
The better embodiment of the application is applied, so the description is being not limited to for the purpose of the rule for illustrating the application
Scope of the present application.The protection scope of the application is as defined by the appended claims.
It should be noted that elaborating detail in the following description to fully understand the present invention.But this hair
Bright to be different from other way described herein with a variety of and be implemented, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case where culvert.Therefore the present invention is not limited by following public specific embodiment.
Referring to FIG. 3, Fig. 3 is a kind of OLED pixel circuit schematic diagram provided in an embodiment of the present invention, organic hair
Light pixel circuit includes the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, the 5th transistor
M5, the 6th transistor M6, storage capacitance Cst and luminescent device oled, wherein the second pole of the first transistor M1 and the second crystalline substance
The second pole of body pipe M2 is electrically connected to first node N1, and the second pole of third transistor M3 and storage capacitance Cst are electrically connected to
Two node N2, the first pole of the 4th transistor M4 and the second pole of the 5th transistor M5 are electrically connected to third node N3；
The grid of the first transistor M1 is electrically connected the first signal end G1, the first electricity of the first pole electrical connection of the first transistor M1
Press V0, the second pole of the second pole electrical connection second transistor M2 of the first transistor M1；
The grid of second transistor M2 is electrically connected second signal end G2, and the first pole electrical connection third of second transistor M2 is brilliant
The second pole of body pipe M3；
The grid of third transistor M3 is electrically connected the first signal end G1, the first pole electrical connection data letter of third transistor M3
Number end Vdata；
The grid of 4th transistor M4 is electrically connected third signal end G3, and the first pole electrical connection the 5th of the 4th transistor M4 is brilliant
The second pole of body pipe M5, the anode of the second pole electrical connection organic luminescent device oled of the 4th transistor M4；
5th transistor M5 is driving transistor, and the grid of the 5th transistor M5 is electrically connected first node N1, the 5th crystal
The first pole of pipe M5 is electrically connected the first supply voltage PVDD；
The grid of 6th transistor M6 is electrically connected fourth signal end G4, and the first pole of the 6th transistor M6 is electrically connected low level
Signal, the second pole of the 6th transistor M6 are electrically connected the grid of the 5th transistor M5；
Storage capacitance Cst is electrically connected between second node N2 and third node N3；
The cathode of the organic luminescent device is electrically connected second source voltage PVEE.
The embodiment of the present invention between the second pole of the first transistor M1 and the grid of the 5th transistor M5 by being arranged
Six transistors, and the 6th transistor M6 the first pole connect low level signal, the first transistor M1 and second transistor M2 all
When closing, the 6th transistor M6 conducting, low level signal is transferred to the grid of the 5th transistor M5 by the 6th transistor M6
Pole, the 5th transistor are closed, and make the grid of the 5th transistor not suspension joint, to ensure that the current potential shape of the grid of the 5th transistor
State is stablized, and ensure that the working performance and stability of the 5th transistor.
Optionally, referring to figure 4., Fig. 4 is another OLED pixel circuit schematic diagram provided in an embodiment of the present invention,
Details are not described herein again for the something in common of embodiment illustrated in fig. 4 and previous embodiment, only description difference place, specifically, first
The 7th transistor M7 can also be set between the second pole of transistor M1 and the second pole of the 6th transistor M6, wherein the 7th is brilliant
Second pole of the first pole electrical connection the first transistor of grid electrical connection the 5th signal end G5, the 7th crystal M7 of body M7, the 7th
The second pole of crystal M7 is electrically connected the second pole of the 6th transistor M6.The embodiment of the present invention passes through the second of the first transistor M1
7th transistor M7 is set between pole and the second pole of the 6th transistor M6, in data-signal write-in, second transistor M2, the
Seven transistor M7 are closed, the first transistor M1, third transistor M3, the 4th transistor M4, the 6th transistor M6 conducting, the first electricity
Pressure V0 is transmitted to first node N1, and data signal end Vdata high voltage signal is transmitted to second node N2.With prior art phase
Than, at this stage, the 7th transistor M7 is closed, and the current potential of first node N1 will not be transferred to the 5th transistor M5, meanwhile, the 6th
Transistor M6 conducting, low level signal are transferred to the grid of the 5th transistor M5, the 5th transistor M5 by the 6th transistor M6
It is not turned on, leakage current will not be generated, so that the stability that will not influence display device is not dark enough with dark-state, contrast is not high enough
Situation.And the problem of grid of the 5th transistor M5 is not in suspension joint.
In the embodiment of the present invention, the first pole of the 6th transistor M6 is electrically connected second voltage VGL, and the low level signal is by the
Two voltage VGL are provided.Optionally, referring to figure 5., Fig. 5 is another OLED pixel circuit provided in an embodiment of the present invention
Schematic diagram.Details are not described herein again for the something in common of embodiment illustrated in fig. 5 and previous embodiment, only description difference place, specifically,
In embodiments of the present invention, the first of the 6th transistor M6 can also extremely be electrically connected second signal end G2, the low level signal by
Second signal end G2 is provided.
Optionally, Fig. 6 is please referred to, Fig. 6 is another OLED pixel circuit schematic diagram provided in an embodiment of the present invention,
Details are not described herein again for the something in common of embodiment illustrated in fig. 6 and previous embodiment, only description difference place, specifically, of the invention
Embodiment can also include the 8th transistor M8, and the grid of the 8th transistor M8 is electrically connected the 6th signal end G6, the 8th transistor
The first pole of M8 is electrically connected reference voltage Vref, and the second pole of the 8th transistor M8 is electrically connected the first pole of the 4th transistor M4.
When the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4 and the 5th transistor M5 are closed, the
Six transistor M6 and the 8th transistor M8 conducting, low level signal are transmitted to the grid of the 5th transistor, and reference voltage is logical
It crosses the 8th transistor and is transmitted to third node, reset anode potential.Also, when second transistor M2, the 4th transistor M4, the
When six transistor M6 are closed, the first transistor M1, third transistor M3, the 5th transistor M5 and the 8th transistor M8 conducting, number
It is transmitted to first node N1 to second node N2, first voltage V0 according to the data signal transmission of signal end Vdata, carries out data letter
Number pre-write, compared with prior art, in data-signal pre-write, the 4th transistor is closed, to will not make organic light emission
Device causes access, will not influence the stability of display panel and the problem that dark-state is not dark enough.
Optionally, Fig. 7 is please referred to, Fig. 7 is another OLED pixel circuit schematic diagram provided in an embodiment of the present invention.
Details are not described herein again for the something in common of embodiment illustrated in fig. 7 and previous embodiment, only description difference place, specifically, of the invention
It can also include the 9th transistor M9 in embodiment, the grid of the 9th transistor M9 is electrically connected the 6th signal end G6, the 9th crystal
The first pole of pipe M9 is electrically connected reference voltage Vref, and the second pole of the 9th transistor M9 is electrically connected the second of the 4th transistor M4
Pole.The embodiment of the present invention is given by the way that the 9th transistor M9 is arranged between the anode and reference voltage Vref of organic luminescent device
One resetting voltage of anode guarantees not working completely in reset compensated stage organic luminescent device oled, reduces organic luminescent device
The dark-state of oled improves the contrast of display panel.
It should be noted that in the embodiment of the present invention, the first transistor M1, second transistor M2, third transistor M3,
Four transistor M4, the 5th transistor M5 and the 6th transistor M6 are all P-type transistor or are all N-type transistor.
The embodiment of the present invention also provides a kind of driving method of OLED pixel circuit.Optionally, referring to figure 3. and figure
8, Fig. 3 be a kind of OLED pixel circuit schematic diagram provided in an embodiment of the present invention, and Fig. 8 is provided in an embodiment of the present invention one
The driving method timing diagram of kind OLED pixel circuit.The driving method includes:
First stage P1, the first transistor M1, second transistor M2, third transistor M3, the 5th transistor M5 are closed, the
Four transistor M4 and the 6th transistor M6 conducting, storage capacitance Cst are floating state, and low level signal passes through the 6th transistor M6
It is transferred to the grid of the 5th transistor M5, the 5th transistor M5 is closed, and the current potential of anode is discharged by the 4th transistor M4,
Organic luminescent device stops shining, and anode resets；
Second stage P2, the first transistor M1, second transistor M2, third transistor M3, the 5th transistor M5 are closed, the
Four transistor M4 and the 6th transistor M6 conducting, gives data signal end Vdata high voltage signal, does standard for data-signal write-in
It is standby；
Phase III P3, second transistor M2, the 6th transistor M6 are closed, the first transistor M1, third transistor M3, the
Four transistor M4 conducting, first voltage V0 are transmitted to first node N1, data signal end Vdata data signal transmission to the second section
Point N2, carries out the pre-write of data-signal；
Fourth stage P4: second transistor M2, the 4th transistor M4, the 5th transistor M5, the 6th transistor M6 are closed, the
One transistor M1, third transistor M3 conducting, third node N3 voltage are that first voltage V0 subtracts threshold voltage vt h, carry out threshold
Value complement repays the write-in with data-signal；
5th stage P5: the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, the 5th crystalline substance
Body pipe M5 is closed, the 6th transistor M6 is connected, and third node N3 voltage is that first voltage V0 subtracts threshold voltage vt h；
6th stage P6: the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, the 5th crystalline substance
Body pipe M5 is closed, the 6th transistor M6 is connected, and gives data signal end low voltage signal, resets data signal end Vdata current potential；
7th stage P7: the first transistor M1, third transistor M3, the 4th transistor M4, the 6th transistor M6 are closed, the
Two-transistor M2 and the 5th transistor M5 conducting, storage capacitance Cst electric discharge, data-signal are transmitted to institute by second transistor M2
State first node N1.
Light emitting phase Emit: the first transistor M1, third transistor M3, the 6th transistor M6 are closed, second transistor M2,
The data-signal of 4th transistor M4, the 5th transistor M5 conducting, storage capacitance Cst storage is transferred to by second transistor M2
The electric current driving organic luminescent device oled of the grid of 5th transistor M5, the 5th transistor M5 shines.The embodiment of the present invention is logical
Cross the 6th transistor of setting between the second pole in the first transistor M1 and the grid of the 5th transistor M5, and the 6th transistor M6
The first pole connect low level signal, in the first stage, second stage, the 5th stage, the 6th stage, the first transistor M1 and the
Two-transistor M2 is closed, and the 6th transistor M6 conducting, low level signal is transferred to the 5th transistor by the 6th transistor M6
The grid of M5, the 5th transistor are closed, and the grid of the 5th transistor not suspension joint is made, thus ensure that the grid of the 5th transistor
Potential state is stablized, and ensure that the working performance and stability of the 5th transistor.
Optionally, in the embodiment of the present invention, the first pole of the 6th transistor M6 is electrically connected second voltage VGL, the low level
Signal is provided by second voltage VGL.In other embodiments, the first of the 6th transistor M6 can also extremely be electrically connected second signal
G2 is held, which is provided by second signal end G2.
Optionally, in the embodiment of the present invention, the first transistor M1, second transistor M2, third transistor M3, the 4th crystal
Pipe M4, the 5th transistor M5, the 6th transistor M6 are all P-type transistor or are all N-type transistor；
When the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, the 5th transistor M5,
When six transistor M6 are all N-type transistor, when giving the first signal end G1 high level voltage, the first transistor M1, third transistor
M3 conducting, when giving the first signal end G1 low level voltage, the first transistor M1, third transistor M3 are closed；
When to second signal end G2 high level voltage, second signal end G2 low level voltage is given in second transistor M2 conducting
When, second transistor M2 is closed；
When to third signal end G3 high level voltage, the 4th transistor is led M4 and is led to, and gives third signal end G3 low level voltage
When, the 4th transistor M4 is closed；
When to fourth signal end G4 high level voltage, fourth signal end G4 low level voltage is given in the 6th transistor M6 conducting
When, the 6th transistor M6 is closed.
Fig. 4 and Fig. 9 are please referred to, Fig. 4 is another OLED pixel circuit schematic diagram provided in an embodiment of the present invention, figure
9 be the driving method timing diagram of another OLED pixel circuit provided in an embodiment of the present invention.The driving method include with
Next stage:
First stage P1: the first transistor M1, second transistor M2, third transistor M3, the 5th transistor M5, the 7th crystalline substance
Body pipe M7 is closed, and the 4th transistor M4 and the 6th transistor M6 conducting, storage capacitance Cst is floating state, and low level signal is logical
The grid that the 6th transistor M6 is transferred to the 5th transistor M5 is crossed, the 5th transistor M5 is closed, and the current potential of third node N3 passes through
4th transistor M4 is discharged, and organic luminescent device oled stops shining, and anode resets；
Second stage P2: the first transistor M1, second transistor M2, third transistor M3, the 5th transistor M5, the 7th crystalline substance
Body pipe M7 is closed, and the 4th transistor M4 and the 6th transistor M6 conducting give data signal end Vdata high voltage signal, be data
Signal write-in is prepared；
Phase III P3: second transistor M2, the 7th transistor M7 is closed, the first transistor M1, third transistor M3, the
Four transistor M4, the 6th transistor M6 conducting, first voltage V0 are transmitted to first node N1, data signal end Vdata data letter
Number it is transmitted to second node N2, carries out the pre-write of data-signal；
Fourth stage P4: second transistor M2, the 4th transistor M4, the 6th transistor M6 are closed, the first transistor M1, the
Three transistor M3, the 5th transistor M5, the 7th transistor M7 conducting, carry out the compensation of threshold voltage and the write-in of data-signal,
The voltage of third node N3 is that first voltage V0 subtracts threshold voltage vt h；
5th stage P5: the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, the 5th crystalline substance
Body pipe M5 is closed, and the 6th transistor M6 and the 7th transistor M7 conducting, first voltage V0 are transmitted to first node N1, storage capacitance
The voltage at the both ends Cst is transferred to second node N2 and third node N3 respectively, makes the voltage data voltage of second node N2, the
The voltage of three node N3 is that first voltage V0 subtracts threshold voltage vt h；
6th stage P6: the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, the 5th crystalline substance
Body pipe M5 is closed, and the 6th transistor M6 and the 7th transistor M7 conducting give data signal end low voltage signal, make data signal end
Current potential resets.
7th stage P7: the first transistor M1, third transistor M3, the 4th transistor M4, the 6th transistor M6 are closed, the
Two-transistor M2, the 5th transistor M5, the 7th transistor M7 conducting, storage capacitance Cst electric discharge, data-signal pass through the second crystal
Pipe M2 is transmitted to first node；
Light emitting phase Emit: the first transistor M1, third transistor M3, the 6th transistor M6 are closed, second transistor M2,
4th transistor M4, the 5th transistor M5, the 7th transistor M7 conducting, the data-signal of storage capacitance Cst storage pass through second
Transistor M2 is transferred to the grid of the 5th transistor M5, and the electric current driving organic luminescent device oled of the 5th transistor M5 shines.
The embodiment of the present invention between the second pole of the first transistor M1 and the second pole of the 6th transistor M6 by being arranged the 7th crystal
Pipe M7, in the phase III, second transistor M2, the 7th transistor M7 are closed, the first transistor M1, third transistor M3, the 4th
Transistor M4, the 6th transistor M6 conducting, first voltage V0 are transmitted to first node N1, data signal end Vdata high voltage letter
Number it is transmitted to second node N2.Compared with prior art, at this stage, the 7th transistor M7 is closed, the current potential of first node N1
It will not be transferred to the 5th transistor M5, meanwhile, the 6th transistor M6 conducting, low level signal is transferred to by the 6th transistor M6
The grid of 5th transistor M5, the 5th transistor M5 are not turned on, and will not generate leakage current, to will not influence the steady of display device
It is qualitative not dark enough with dark-state, the not high enough situation of contrast.And the problem of grid of the 5th transistor M5 is not in suspension joint.
In the embodiment of the present invention, the first pole of the 6th transistor M6 is electrically connected second voltage VGL, and the low level signal is by second voltage
VGL is provided.In other embodiments, the first of the 6th transistor M6 can also extremely be electrically connected second signal end G2, the low level
Signal is provided by second signal end G2.
Optionally, Fig. 6 and Figure 10 are please referred to, Fig. 4 is another OLED pixel circuit provided in an embodiment of the present invention
Schematic diagram, Figure 10 are the driving method timing diagrams of another OLED pixel circuit provided in an embodiment of the present invention.The driving
Method includes with the next stage:
First stage: the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4 and the 5th are brilliant
Body pipe M5 is closed, and the 6th transistor M6 and the 8th transistor M8 conducting, low level signal are transmitted to the grid of the 5th transistor M5,
Reference voltage Vref is transmitted to third node N3 by the 8th transistor M8, and anode resets；
Second stage: M1 the first transistor, second transistor M2, third transistor M3, the 4th transistor M4 and the 5th are brilliant
Body pipe M5 is closed, and the 6th transistor M6 and the 8th transistor M8 conducting, low level signal are transmitted to the grid of the 5th transistor M5,
Reference voltage Vref is transmitted to third node N3 by the 8th transistor M8, and anode resets, and data signal end Vdata is to high electricity
Pressure is prepared for the write-in of data-signal.
Phase III: second transistor M2, the 4th transistor M4, the 6th transistor M6 are closed, the first transistor M1, third
Transistor M3, the 5th transistor M5 and the 8th transistor M8 conducting, the data signal transmission of data signal end to second node N2,
First voltage V0 is transmitted to first node N1, carries out data-signal pre-write；
Fourth stage: second transistor M2, the 4th transistor M4, the 5th transistor M5, the 6th transistor M6 and the 8th are brilliant
Body pipe M8 is closed, the first transistor M1 and third transistor M3 conducting, the data signal transmission of data signal end to second node
N2, first voltage V0 are transmitted to first node N1, carry out the write-in and threshold compensation of data-signal；
5th stage: the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, the 5th crystal
Pipe M5 and the 8th transistor M8 is closed, the 6th transistor M6 conducting, and third node N3 voltage is that first voltage V0 subtracts threshold value electricity
Press Vth；
6th stage: the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, the 5th crystal
Pipe M5 and the 8th transistor M8 is closed, and the 6th transistor M6 conducting gives data signal end low voltage signal, makes data signal end
Vdata current potential resets；
7th stage: the first transistor M1, third transistor M3, the 4th transistor M4, the 6th transistor M6 and the 8th are brilliant
Body M8 is closed, second transistor M2 and the 5th transistor M5 conducting, storage capacitance Cst electric discharge, and data-signal passes through the second crystal
Pipe M2 is transmitted to first node N1, and the 5th transistor M5 is connected.
Light emitting phase: the first transistor M1, third transistor M3, the 6th transistor M6 and the 8th transistor M8 are closed, the
Two-transistor M2, the 4th transistor M4, the 5th transistor M5 conducting, the data-signal of storage capacitance Cst storage are brilliant by second
Body pipe M2 is transferred to the grid of the 5th transistor M5, and the electric current driving organic luminescent device oled of the 5th transistor M5 shines.This
In inventive embodiments, the 8th transistor M8 is set, so that in the first stage and second stage, the first transistor M1, the second crystal
When pipe M2, third transistor M3, the 4th transistor M4 and the 5th transistor M5 are closed, the 6th transistor M6 and the 8th transistor M8
Conducting, low level signal are transmitted to the grid of the 5th transistor, and reference voltage is transmitted to third section by the 8th transistor
Point, resets anode potential.Also, in the phase III, when second transistor M2, the 4th transistor M4, the 6th transistor M6 are closed
When closing, the first transistor M1, third transistor M3, the 5th transistor M5 and the 8th transistor M8 conducting, data signal end Vdata
Data signal transmission be transmitted to first node N1 to second node N2, first voltage V0, carry out data-signal pre-write, and it is existing
There is technology to compare, in data-signal pre-write, the 4th transistor is closed, thus organic luminescent device will not be made to cause access,
It will not influence the stability of display panel and the problem that dark-state is not dark enough.
It optionally, can also include the 9th transistor M9, the grid of the 9th transistor M9 is electrically connected the 6th signal end M6, the
The first pole of nine transistor M9 is electrically connected reference voltage Vref, and the second pole of the 9th transistor M9 is electrically connected the 4th transistor M4's
Second pole, wherein the 9th transistor M9 is N-type transistor or is P-type transistor, when the 9th transistor M9 is N-type transistor
When, driving method can also include:
In the first stage, second stage, phase III, give the 6th signal end G6 high level signal, and the 9th transistor M9 is led
It is logical, in fourth stage, the 5th stage, the 6th stage, the 7th stage and light emitting phase, believe to the 6th signal end G6 low level
Number, the 9th transistor M9 is closed, and in the first stage, second stage and phase III, the 9th transistor give anode resetting voltage, make
Organic luminescent device does not shine in reset compensated stage.
The embodiment of the present invention also provides a kind of display device, the organic light emissive pixels electricity comprising above-mentioned any one embodiment
Road.Figure 11 is please referred to, Figure 11 is a kind of display device provided in an embodiment of the present invention.The display device includes organic light emitting display
Device, the organic light-emitting display device may include cell phone, tablet computer or wrist-watch.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (9)
1. a kind of OLED pixel circuit, characterized by comprising:
The first transistor, second transistor, third transistor, the 4th transistor, the 5th transistor, the 6th transistor, storage electricity
Hold and luminescent device, wherein the second pole of the first transistor and the second pole of the second transistor are electrically connected to the
One node, the second pole of the third transistor and the storage capacitance are electrically connected to second node, the 4th transistor
First pole and the second pole of the 5th transistor are electrically connected to third node；
The grid of the first transistor is electrically connected the first signal end, the first electricity of the first pole electrical connection of the first transistor
Pressure, the second pole of the second pole electrical connection second transistor of the first transistor；
The grid of the second transistor is electrically connected second signal end, and the first pole of the second transistor is electrically connected the third
Second pole of transistor；
The grid of the third transistor is electrically connected the first signal end, and the first pole of the third transistor is electrically connected data-signal
End；
The grid of 4th transistor is electrically connected third signal end, and the first pole of the 4th transistor is electrically connected the 5th crystal
Second pole of the second pole of pipe, the 4th transistor is electrically connected the anode of the organic luminescent device；
5th transistor is driving transistor, and the grid of the 5th transistor is electrically connected the first node, described the
First pole of five transistors is electrically connected the first supply voltage；
The grid of 6th transistor is electrically connected fourth signal end, the first pole electrical connection low level letter of the 6th transistor
Number, the second pole of the 6th transistor is electrically connected the grid of the 5th transistor；
The storage capacitance is electrically connected between the second node and the third node；
The cathode of the organic luminescent device is electrically connected second source voltage；
It is also electrically connected with the 7th transistor between the second pole of the first transistor and the second pole of the 6th transistor,
Wherein, the grid of the 7th crystal is electrically connected the 5th signal end, the first pole electrical connection described first of the 7th transistor
Second pole of the second pole of transistor, the 7th transistor is electrically connected the second pole of the 6th transistor；
The pre-write stage of data-signal: the second transistor, the 7th transistor are closed, the first transistor, institute
Third transistor, the 4th transistor, the 6th transistor turns are stated, the first voltage is transmitted to the first segment
Point, the data signal end data signal transmission to the second node, carries out the pre-write of data-signal.
2. OLED pixel circuit according to claim 1, which is characterized in that institute
The first pole electrical connection second voltage of the 6th transistor is stated, the low level signal is provided by the second voltage.
3. OLED pixel circuit according to claim 1, which is characterized in that institute
The first pole electrical connection second signal end of the 6th transistor is stated, the low level signal is provided by the second signal end.
4. OLED pixel circuit according to claim 1, which is characterized in that described first is brilliant
Body pipe, the second transistor, the third transistor, the 4th transistor, the 5th transistor and described
Six transistors are all P-type transistor or are all N-type transistor.
5. a kind of display device, which is characterized in that comprising organic described in claim 1-4 any one
Light emitting pixel circuit.
6. a kind of driving method of OLED pixel circuit, which is characterized in that driving right is wanted
The method of OLED pixel circuit described in asking 1, the driving method includes:
First stage: the first transistor, the second transistor, the third transistor, the 5th transistor, described
7th transistor is closed, the 4th transistor and the 6th transistor turns, and the storage capacitance is floating state, described
Low level signal is transferred to the grid of the 5th transistor by the 6th transistor, and the 5th transistor is closed, institute
The current potential for stating third node is discharged by the 4th transistor, and organic luminescent device stops shining, and the anode resets；
Second stage: the first transistor, the second transistor, the third transistor, the 5th transistor, described
7th transistor is closed, and the 4th transistor and the 6th transistor turns give the data signal end high voltage signal,
It prepares for data-signal write-in；
Phase III: the second transistor, the 7th transistor close, the first transistor, the third transistor,
4th transistor, the 6th transistor turns, the first voltage are transmitted to the first node, the data-signal
End data signal is transmitted to the second node, carries out the pre-write of data-signal；
Fourth stage: the second transistor, the 4th transistor, the 6th transistor are closed, the first transistor,
The third transistor, the 5th transistor, the 7th transistor turns, carry out compensation and the data-signal of threshold voltage
Write-in, the voltage of the third node is that the first voltage subtracts the threshold voltage；
5th stage: the first transistor, the second transistor, the third transistor, the 4th transistor, described
5th transistor is closed, and first voltage described in the 6th transistor and the 7th transistor turns is transmitted to the first segment
Point, the voltage at the storage capacitance both ends are transferred to the second node and the third node respectively, make the second node
Voltage is voltage data signal, and the third node voltage is that the first voltage subtracts the threshold voltage；
6th stage: the first transistor, the second transistor, the third transistor, the 4th transistor, described
5th transistor is closed, and the 6th transistor and the 7th transistor turns give the data signal end low voltage signal,
Reset data-signal terminal potential；
7th stage: the first transistor, the third transistor, the 4th transistor, the 6th transistor are closed,
The second transistor, the 5th transistor, the 7th transistor turns, the storage capacitance electric discharge, the data letter
Number the first node is transmitted to by the second transistor；
Light emitting phase: the first transistor, the third transistor, the 6th transistor are closed, the second transistor,
The data-signal of 4th transistor, the 5th transistor, the 7th transistor turns, the storage capacitance storage is logical
The grid that the second transistor is transferred to the 5th transistor is crossed, the electric current of the 5th transistor drives organic hair
Optical device shines.
7. the driving method of OLED pixel circuit according to claim 6, feature
It is, the first transistor, the second transistor, the third transistor, the 4th transistor, the described 5th
Transistor, the 6th transistor and the 7th transistor are all P-type transistor or are all N-type transistor；
When the first transistor, the second transistor, the third transistor, the 4th transistor, the 5th crystalline substance
When body pipe, the 6th transistor and the 7th transistor are all N-type transistor,
When to the first signal end high level voltage, the first transistor, the third transistor
Conducting, when giving the first signal end low level voltage, the first transistor, the third transistor are closed；
When to the second signal end high level voltage, the second transistor conducting gives described second
When signal end low level voltage, the second transistor is closed；
When to the third signal end high level voltage, the 4th crystal conducting is believed to the third
When number end low level voltage, the 4th crystal is closed；
When to the fourth signal end high level voltage, the 6th crystal conducting, to the 4th letter
When number end low level voltage, the 6th crystal is closed；
When to the 5th signal end high level, the 7th transistor turns, when giving the 5th signal low level signal, institute
State the closing of the 7th transistor.
8. the driving side of OLED pixel circuit according to claim 6 or 7
Method, which is characterized in that the first pole of the 6th transistor is electrically connected the second signal end, the low level signal by
The second signal end provides.
9. the driving side of OLED pixel circuit according to claim 6 or 7
Method, which is characterized in that the first pole of the 6th transistor is electrically connected second voltage, and the low level signal is by described the
Two voltages provide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710387719.9A CN106952613B (en) | 2017-05-27 | 2017-05-27 | The driving method of OLED pixel circuit, display device and OLED pixel circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710387719.9A CN106952613B (en) | 2017-05-27 | 2017-05-27 | The driving method of OLED pixel circuit, display device and OLED pixel circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106952613A CN106952613A (en) | 2017-07-14 |
| CN106952613B true CN106952613B (en) | 2019-05-07 |
Family
ID=59479934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710387719.9A Active CN106952613B (en) | 2017-05-27 | 2017-05-27 | The driving method of OLED pixel circuit, display device and OLED pixel circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106952613B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111951715B (en) * | 2019-04-30 | 2024-03-29 | 上海和辉光电股份有限公司 | Pixel circuit, driving method and display |
| CN111445850A (en) * | 2020-04-30 | 2020-07-24 | 京东方科技集团股份有限公司 | Pixel circuit and driving method thereof, display device and driving method thereof |
| TWI802215B (en) | 2022-01-11 | 2023-05-11 | 友達光電股份有限公司 | Driving circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8810485B2 (en) * | 2008-12-05 | 2014-08-19 | Samsung Display Co., Ltd. | Display device and method of driving the same |
| CN104318894A (en) * | 2014-09-30 | 2015-01-28 | 京东方科技集团股份有限公司 | Pixel circuit and driving method thereof, and display apparatus |
| CN104616621A (en) * | 2015-02-05 | 2015-05-13 | 京东方科技集团股份有限公司 | Pixel circuit, and drive method and display device thereof |
| CN102930821B (en) * | 2012-11-09 | 2015-08-26 | 京东方科技集团股份有限公司 | A kind of image element circuit and driving method, display device |
| CN105225636A (en) * | 2014-06-13 | 2016-01-06 | 京东方科技集团股份有限公司 | Pixel-driving circuit, driving method, array base palte and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010145578A (en) * | 2008-12-17 | 2010-07-01 | Sony Corp | Display device, method of driving display device, and electronic apparatus |
-
2017
- 2017-05-27 CN CN201710387719.9A patent/CN106952613B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8810485B2 (en) * | 2008-12-05 | 2014-08-19 | Samsung Display Co., Ltd. | Display device and method of driving the same |
| CN102930821B (en) * | 2012-11-09 | 2015-08-26 | 京东方科技集团股份有限公司 | A kind of image element circuit and driving method, display device |
| CN105225636A (en) * | 2014-06-13 | 2016-01-06 | 京东方科技集团股份有限公司 | Pixel-driving circuit, driving method, array base palte and display device |
| CN104318894A (en) * | 2014-09-30 | 2015-01-28 | 京东方科技集团股份有限公司 | Pixel circuit and driving method thereof, and display apparatus |
| CN104616621A (en) * | 2015-02-05 | 2015-05-13 | 京东方科技集团股份有限公司 | Pixel circuit, and drive method and display device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106952613A (en) | 2017-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11227550B2 (en) | Electronic panel, display device, and driving method | |
| WO2021175017A1 (en) | Pixel circuit and driving method therefor, and display device | |
| CN105575320B (en) | Image element circuit and its driving method and OLED | |
| CN106023898B (en) | Pixel circuit, display panel and driving method | |
| TWI425472B (en) | Pixel circuit and driving method thereof | |
| CN106297667B (en) | Image element circuit and its driving method, array base palte and display device | |
| CN105789250B (en) | Pixel circuit and its driving method and organic light emitting display | |
| CN106887210B (en) | Display panel, pixel-driving circuit and its driving method | |
| CN107274825A (en) | Display panel, display device, pixel driving circuit and control method thereof | |
| CN116597777A (en) | Display panel and display device | |
| CN107068066A (en) | Pixel compensation circuit and display device, driving method | |
| CN105448234B (en) | Pixel circuit and its driving method and active matrix/organic light emitting display | |
| CN111179820A (en) | Pixel circuit and display panel | |
| CN111243498B (en) | Pixel circuit, driving method thereof and display device | |
| CN111341267B (en) | Pixel circuit and driving method thereof | |
| CN107464526A (en) | A kind of pixel compensation circuit, its driving method and display device | |
| CN109817165A (en) | Pixel-driving circuit, image element driving method, display panel and display device | |
| CN108428434A (en) | Pixel circuit, organic light emitting display panel and display device | |
| CN106952613B (en) | The driving method of OLED pixel circuit, display device and OLED pixel circuit | |
| CN106409229A (en) | Pixel circuit and driving method thereof, and active matrix organic light emitting display | |
| CN109817163A (en) | Pixel-driving circuit and display panel and its driving method, display device | |
| CN104464624A (en) | Pixel compensating circuit of active matrix organic light emitting diode displayer | |
| CN105355170A (en) | Pixel compensating circuit for active matrix organic light-emitting diode display | |
| CN109473063A (en) | Pixel compensation circuit and pixel compensation method | |
| CN106128365A (en) | Pixel-driving circuit and driving method thereof and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211027 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 201201 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |
|
| TR01 | Transfer of patent right |