CN104167168B - Image element circuit and driving method thereof and display device - Google Patents
Image element circuit and driving method thereof and display device Download PDFInfo
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- CN104167168B CN104167168B CN201410283800.9A CN201410283800A CN104167168B CN 104167168 B CN104167168 B CN 104167168B CN 201410283800 A CN201410283800 A CN 201410283800A CN 104167168 B CN104167168 B CN 104167168B
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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
-
- 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]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
Abstract
The invention provides a kind of image element circuit and driving method thereof and display device, including: the first switch element, second switch unit, the 3rd switch element, the 4th switch element, the 5th switch element, driver element, energy-storage units and electroluminescence cell, described first switch element, the control end of the 5th switch element are all connected to the second scan signal line；Described second switch unit, the 3rd switch element, the control end of the 4th switch element are all connected to the first scan signal line.The image element circuit that the present invention provides can thoroughly solve the problem owing to driving the threshold voltage shift of transistor to cause display brightness inequality.Simultaneously in the present invention, switching signal incoming line only has two, the most not only saves energy consumption, also reduces the interference between circuit.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of image element circuit and driving method thereof
And display device.
Background technology
OLED (OLED) be current flat faced display research field focus it
One, compared with liquid crystal display, OLED has that low energy consumption, production cost be low, self-luminous,
The advantage such as wide viewing angle and fast response time.At present, aobvious at mobile phone, PDA, digital camera etc.
Show that field OLED has begun to replace traditional liquid crystal (LCD) display screen.Pixel driver
Circuit design is OLED display core technology content, has important Research Significance.
Stable Control of Voltage brightness is utilized not with TFT (TFT)-LCD
With, OLED belongs to electric current and drives, and needs stable electric current to control luminescence.
Due to the reason such as manufacturing process and device aging, at original 2T1C drive circuit (bag
Include two TFTs and an electric capacity) in, the driving TFT's of each pixel
There is inhomogeneities in threshold voltage, which results in the electricity flowing through each pixel OLED
Stream changes so that display brightness is uneven, thus affects the display effect of whole image.
Summary of the invention
Present invention aim to address the problem that display device display brightness is uneven, and reduce aobvious
For the signal line number of image element circuit in showing device, reduce integrated circuit cost, simultaneously
Improve the picture element density of display device.
To achieve these goals, the invention provides a kind of image element circuit, including the first switch
Unit, second switch unit, the 3rd switch element, the 4th switch element, the 5th switch element,
Driver element, energy-storage units and electroluminescence cell；
First end of energy-storage units connects the control end of driver element, is used for drawing high driver element control
The voltage of end processed makes described driver element work；The input of driver element and electroluminescence cell
Anode be connected, be used for driving described electroluminescence cell to carry out luminescence display；
First switch element is connected between the input of driver element and running voltage line, controls
End connects the second scan signal line, is used under the control of the second scan signal line to described driving
Unit provides driving voltage；
Second switch unit be connected to the input of driver element and energy-storage units the first end it
Between, control end and connect the first scan signal line, for making under the control of the first scan signal line
Described energy-storage units carries out discharge and recharge；
3rd switch element is connected between the second end and the data signal line of energy-storage units, controls
End connects the first scan signal line, is used for data signal under the control of the first scan signal line
Voltage in line is written to the second end of energy-storage units；
First end of the 4th switch element is connected to outfan and the electroluminescent list of driver element
Between the anode of unit, the second end ground connection, control end and connect the first scan signal line, in institute
State the short circuit of described electroluminescence cell under the control of the first scan signal line；
5th switch element is connected to the anode of electroluminescence cell and the second end of energy-storage units
Between, control end and connect the second scan signal line, under the control of the second scan signal line
Make electroluminescence cell electric discharge described in described energy-storage units.
Preferably, each switch element and described driver element are TFT, respectively
The control end of individual switch element is grid, and other two ends correspond to source electrode and drain electrode；Described driving
The input of unit is drain electrode, and control end is grid, and outfan is source electrode.
Preferably, each TFT is N-channel type.
Preferably, described energy-storage units is electric capacity.
Preferably, described electroluminescence cell is Organic Light Emitting Diode.
Present invention also offers the driving method of a kind of image element circuit, be used for driving any of the above-described item
Described image element circuit, it is characterised in that each frame working hour all includes the charging stage, puts
Electricity stage and glow phase, wherein,
In the charging stage, apply voltage at scan signal line and make all switch elements all turn on, make
First end charging of running voltage alignment energy-storage units；
At discharge regime, apply voltage at scan signal line and make second switch unit, the 3rd switch
Unit, the 4th switching means conductive, and apply data voltage at data signal line, make energy storage list
First end electric discharge of unit；
In glow phase, apply voltage at scan signal line and make the first switch element and the 5th switch
Unit turns on, and makes electroluminescence cell luminous.
Preferably, when each switch element in described image element circuit be N-channel type thin film field effect
When answering transistor, described method includes:
In the charging stage, all apply high level at the first scan signal line and the second scan signal line
Signal；
At discharge regime, apply high level signal at the first scan signal line；
In glow phase, apply high level signal at the second scan signal line.
Preferably, after discharge regime, before glow phase, also include the voltage stabilizing stage,
In the voltage stabilizing stage, apply voltage at scan signal line and make all switch elements be both off.
Present invention also offers a kind of display device, including the pixel electricity as described in above-mentioned any one
Road.
In the image element circuit that the present invention provides, flow through the operating current of electroluminescence cell not by right
The impact of the threshold voltage driving transistor answered, thoroughly solves the threshold owing to driving transistor
Threshold voltage drift causes the problem that display brightness is uneven.Simultaneously in the present invention, switching signal inputs
Circuit only has two, the most not only saves energy consumption, also reduces the interference between circuit.
Accompanying drawing explanation
The structural representation of the image element circuit that Fig. 1 provides for the embodiment of the present invention；
The sequential chart of key signal in the image element circuit that Fig. 2 provides for the embodiment of the present invention；
Fig. 3 is the current direction under different sequential of the image element circuit in the embodiment of the present invention and electricity
The schematic diagram of pressure value.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is retouched further
State.Following example are only used for clearly illustrating technical scheme, and can not be with
This limits the scope of the invention.
Embodiments provide a kind of image element circuit, as shown in Fig. 1 or Fig. 3, including:
Five switch elements T1, T2, T3, T4, T5, a driver element DT, a storage
Can unit C, an electroluminescence cell L；
The control end of T1, T5 is all connected to second and sweeps holding wire Scan [2]；First end of T1 is even
Receive running voltage line Vdd, its second end is connected to the input of driver element DT；The of T5
One end is connected to the outfan of DT, and its second end is connected to the second end B end of energy-storage units C；
The control end of T2, T3, T4 is all connected to the first scan signal line Scan [1]；The of T2
One end is connected to the input of DT, and its second end is connected to the first end A end of energy-storage units C；
First end of T3 is connected to data signal line Data, and its second end is connected to the of energy-storage units C
Two end B ends；First end of T4 is connected to the outfan of DT, its second end ground connection；
The outfan of DT also anode with electroluminescence cell L is connected, and it controls end and energy storage list
The A end of unit is connected.
It is understood that in the present invention, control end and be connected to the multiple of same scan signal line
Switch element (is connected to two switch elements T2, T3, T4 of Scan [1], is connected to Scan [2]
Two switch elements T1, T5) should be the switch of same channel type, be i.e. all high level
Turn on or be all low level conducting, thus ensure two that are connected to same scan signal line and open
The on or off state closing unit is identical.
In the image element circuit that the present invention provides, flow through the operating current of electroluminescence cell not by right
The impact of the threshold voltage driving transistor answered, thoroughly solves the threshold owing to driving transistor
Threshold voltage drift causes the problem that display brightness is uneven.Simultaneously in the present invention, switching signal inputs
Circuit only has two, the most not only saves energy consumption, also reduces the interference between circuit.
Preferably, each switch element and driver element are TFT TFT, respectively
The control end of individual switch element is grid, the drain electrode that the first end is TFT of each switch element,
The source electrode that second end is TFT of each switch element；The input of described driver element is TFT
Drain electrode, control end be the grid of TFT, outfan is the source electrode of TFT.Certainly switch element
Can also be other suitable device or combination of devices with driver element.
It can be appreciated that the driver element here transistor corresponding with switch element can be source and drain
The transistor that extremely can exchange, or the difference according to conductivity type, each switch element and driving
First end of moving cell may be the source electrode of transistor for the drain electrode of transistor, the second end, ability
Field technique personnel are not on the premise of paying performing creative labour, and the pixel providing the present invention is electric
Obtained by road, each transistor carries out the reversal connection of source-drain electrode, can obtain and the present invention provide
The same or analogous circuit structure of technique effect that can reach of technical scheme should fall into equally
Protection scope of the present invention.
Further, in the embodiment of the present invention, each TFTs all are N
Channel-type.Use same type of transistor, it is possible to realize the unification of technological process, thus carry
The yields of high product.It will be appreciated by persons skilled in the art that in actual applications, respectively
The type of individual transistor can also be incomplete same, and such as T2, T3 and T4 can be N-channel type
Transistor, and T1 and T5 can be P-channel transistor npn npn, as long as control end can be made to be connected to
The ON/OFF state of two switch elements of same scan signal line is identical, can realize this
The technical scheme that application provides, the preferred embodiment of the present invention should not be construed as protecting the present invention
Protect the restriction of scope.
Preferably, described energy-storage units C is electric capacity.In actual application, according to design need
Want to use other to have the element of energy-storage function.
Preferably, described electroluminescence cell L can be Organic Light Emitting Diode (OLED).
In actual application, need to use other to have electroluminescent function according to design
Element.
Below in conjunction with Fig. 2 and Fig. 3 driving the image element circuit that the preferred embodiment of the invention provides
Dynamic method is described in detail, and the image element circuit that being illustrated in figure 2 the present invention provides is defeated when working
The sequential chart of the scanning signal entered in each scan signal line, can be divided into four-stage, at figure
Reset phase W1, discharge regime W2, voltage stabilizing stage W3, glow phase it is expressed as in 2
W4, in each stage, the current direction of image element circuit and magnitude of voltage respectively as Fig. 3 a, Fig. 3 b,
Shown in Fig. 3 c.For convenience of explanation, it is assumed that each switch element is N-channel type TFT.
At reset phase W1, as in figure 2 it is shown, Scan [1] and Scan [2] is high level, counting
V is applied according on pressure-wire Datadata(VdataThe data electricity required for OLED luminescence is made for this
Pressure), the most all TFT are both turned on, as shown in Figure 3 a, VddCharge along through T1 and T2 to A point,
Until A point voltage reaches Vdd；Owing to T3 turns on, B point meets data voltage line Data, and current potential is
Vdata。
The purpose in this stage is, resets the voltage of A point, and makes the electricity of A point
Pressure keeps a high potential, thus by suitably controlling during permission is follow-up, makes
The voltage of A point becomes a relatively low reasonable current potential.Due to this process primarily to A
The voltage of point resets, and what requirement the voltage of B point is not had, therefore data voltage line
Voltage in Data can also be other voltages (such as no-voltages).
At discharge regime W2, as in figure 2 it is shown, Scan [1] is high level, Scan [2] is low level,
And continue to apply V on data signal line Datadata, now, now T2, T3, T4 conducting,
T1, T5 disconnect, and as shown in Figure 3 b, electric capacity C discharges along T2-DT-T4, discharges into voltage always
Reduce to VthTill, i.e. electric discharge terminates rear A point current potential and reduces to Vth, B point current potential remains as Vdata,
Wherein VthThreshold voltage for DT.The purpose in this stage is that the voltage making A point becomes one
The individual threshold voltage V with DTthThe voltage being associated, thus can be with in follow-up glow phase
The threshold voltage V of DTthOffset, eliminate threshold voltage VthDrift is to flowing through electroluminescence cell
The impact of electric current.It addition, in this stage, the voltage of B point is set to data voltage Vdata,
And produce impact at the final glow phase electric current on flowing through electroluminescent cell L, make electroluminescent
The luminescence that light-emitting component L is corresponding, therefore this stage is the most also the write rank of data voltage
Section.
At voltage stabilizing stage W3, as in figure 2 it is shown, Scan [1] and Scan [2] is low level, now
All TFT are turned off, and this process time is relatively short, primarily at discharge regime
Pressure reduction (the V between stable A point and B point is played after the electric discharge fully of W2th-Vdata) effect.
It will be understood by those skilled in the art that this process is to preferably make between A point and B point
Pressure reduction stabilize to Vth-VdataEven if lacking this stage, the technical scheme that the present invention provides
Equally implementing, the preferred embodiment of the present invention should not be construed protects model to the present invention
The restriction enclosed.
In glow phase W4, Scan [1] is low level, and Scan [2] is high level, now, and this
Time T1, T5 conducting, T2, T3, T4 disconnect.See Fig. 3 c, now B point potential change Vdata
→Voled_in(Voled_inFor the conducting voltage of electroluminescence cell L, after T5 turns on, electric capacity C
B terminal voltage and the anode voltage of L keep consistent, be Voled_in), due to A end suspension joint,
VAAnd VBRealize voltage equivalent saltus step and (keep original pressure reduction Vth-Vdata), after saltus step, A point
Electromotive force VA=Vth-Vdata+Voled_in, this process is transient process, and isobaric saltus step moment is carried out
Complete, meanwhile enter glow phase.Vdd charges along T1 → DT to electroluminescence cell L.
In actual application, in order to make the voltage of A point raise the (voltage of glow phase A point
Need higher than Vth), at discharge regime, it is applied to the voltage on Data line and should be less than Voled_in。
In this stage, on the one hand, the conducting of T5 result in the voltage jump of A point (in order to tie up
Hold the pressure reduction at electric capacity C two ends) so that the voltage of A point raises, so that DT turns on and utilizes
Running voltage line VddThe running voltage provided supplies induced current to OLED so that OLED is luminous.
On the other hand, the voltage after A point saltus step becomes a voltage relevant to data voltage, thus
Ensure that electroluminescent cell L can be correctly luminous.
Can be obtained by TFT saturation current formula:
IL=K (VGS-Vth)2=K (Vth-Vdata+Voled_in-Vth)2
=K (Voled_in-Vdata)2
By in above formula it can be seen that the operating current now flowing through electroluminescence cell is not driven
The impact of transistor threshold voltage, only with data voltage V nowdataRelevant.Thoroughly solve
TFT is driven to cause threshold voltage (V due to manufacturing process and long operationth) asking of drifting about
Topic, eliminates the impact of its electric current on flowing through electroluminescence cell, it is ensured that electroluminescence cell
Normal work.
Based on identical design, present invention also offers a kind of display device, including any of the above-described
Image element circuit shown in Xiang.
Here display device can be: Electronic Paper, mobile phone, panel computer, television set, aobvious
Show any products with display function such as device, notebook computer, DPF, navigator or
Parts.
The above is only the preferred embodiment of the present invention, it is noted that lead for this technology
For the those of ordinary skill in territory, on the premise of without departing from the technology of the present invention principle, it is also possible to
Making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (9)
1. an image element circuit, it is characterised in that including: the first switch element, second open
Close unit, the 3rd switch element, the 4th switch element, the 5th switch element, driver element,
Energy-storage units and electroluminescence cell；
First end of energy-storage units connects the control end of driver element, is used for drawing high driver element control
The voltage of end processed makes described driver element work；The outfan of driver element and electroluminescence cell
Anode be connected, be used for driving described electroluminescence cell to carry out luminescence display；
First switch element is connected between the input of driver element and running voltage line, controls
End connects the second scan signal line, is used under the control of the second scan signal line to described driving
Unit provides driving voltage；
Second switch unit be connected to the input of driver element and energy-storage units the first end it
Between, control end and connect the first scan signal line, for making under the control of the first scan signal line
Described energy-storage units carries out discharge and recharge；
3rd switch element is connected between the second end and the data signal line of energy-storage units, controls
End connects the first scan signal line, is used for data signal under the control of the first scan signal line
Voltage in line is written to the second end of energy-storage units；
First end of the 4th switch element is connected to outfan and the electroluminescent list of driver element
Between the anode of unit, the second end ground connection, control end and connect the first scan signal line, in institute
State the short circuit of described electroluminescence cell under the control of the first scan signal line；
5th switch element is connected to the anode of electroluminescence cell and the second end of energy-storage units
Between, control end and connect the second scan signal line, under the control of the second scan signal line
Described energy-storage units is made to discharge to described electroluminescence cell.
2. image element circuit as claimed in claim 1, it is characterised in that each switch element and
Described driver element is TFT, and the control end of each switch element is thin film field
The grid of effect transistor, other two ends correspond respectively to TFT source electrode and
Drain electrode；The input of described driver element is the drain electrode of TFT, controls end and is
The grid of TFT, outfan is the source electrode of TFT.
3. image element circuit as claimed in claim 2, it is characterised in that each thin film field-effect
Transistor is N-channel type.
4. image element circuit as claimed in claim 1, it is characterised in that described energy-storage units is
Electric capacity.
5. the image element circuit as described in claim 1-4 any of which item, it is characterised in that institute
Stating electroluminescence cell is Organic Light Emitting Diode.
6. the driving method of an image element circuit, it is characterised in that for driving right such as to want
Seek the image element circuit described in any one of 1-5, it is characterised in that each frame working hour all includes
Charging stage, discharge regime and glow phase, wherein,
In the charging stage, apply voltage at scan signal line and make all switch elements all turn on, make
First end charging of running voltage alignment energy-storage units；
At discharge regime, apply voltage at scan signal line and make second switch unit, the 3rd switch
Unit, the 4th switching means conductive, and apply data voltage at data signal line, make energy storage list
First end electric discharge of unit；
In glow phase, apply voltage at scan signal line and make the first switch element and the 5th switch
Unit turns on, and makes electroluminescence cell luminous.
7. method as claimed in claim 6, it is characterised in that when in described image element circuit
When each switch element is N-channel type TFT, described method includes:
In the charging stage, all apply high level at the first scan signal line and the second scan signal line
Signal；
At discharge regime, apply high level signal at the first scan signal line；
In glow phase, apply high level signal at the second scan signal line.
8. method as claimed in claim 6, it is characterised in that after discharge regime, send out
The voltage stabilizing stage is also included before photophase,
In the voltage stabilizing stage, apply voltage at scan signal line and make all switch elements be both off.
9. a display device, it is characterised in that include as described in any one of claim 1-5
Image element circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283800.9A CN104167168B (en) | 2014-06-23 | 2014-06-23 | Image element circuit and driving method thereof and display device |
| PCT/CN2014/092536 WO2015196730A1 (en) | 2014-06-23 | 2014-11-28 | Pixel circuit, driving method therefor and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283800.9A CN104167168B (en) | 2014-06-23 | 2014-06-23 | Image element circuit and driving method thereof and display device |
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| Publication Number | Publication Date |
|---|---|
| CN104167168A CN104167168A (en) | 2014-11-26 |
| CN104167168B true CN104167168B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410283800.9A Active CN104167168B (en) | 2014-06-23 | 2014-06-23 | Image element circuit and driving method thereof and display device |
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| WO (1) | WO2015196730A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167168B (en) * | 2014-06-23 | 2016-09-07 | 京东方科技集团股份有限公司 | Image element circuit and driving method thereof and display device |
| KR102334265B1 (en) * | 2014-12-02 | 2021-12-01 | 삼성디스플레이 주식회사 | Organic light emitting display and driving method of the same |
| CN104882099B (en) * | 2015-06-10 | 2017-08-25 | 京东方科技集团股份有限公司 | A kind of pixel-driving circuit, array base palte and display device |
| KR102389343B1 (en) * | 2015-08-27 | 2022-04-25 | 삼성디스플레이 주식회사 | Pixel, organic light emitting display device including the pixel and driving method of the pixel |
| CN105070250A (en) | 2015-09-23 | 2015-11-18 | 京东方科技集团股份有限公司 | Pixel driving circuit and driving method thereof, and display device |
| CN105427795A (en) * | 2016-01-11 | 2016-03-23 | 京东方科技集团股份有限公司 | Pixel driving circuit and method, pixel structure, and display device |
| KR102547871B1 (en) * | 2016-12-01 | 2023-06-28 | 삼성디스플레이 주식회사 | Pixel and organic light emitting display device having the pixel |
| CN108399894A (en) * | 2018-03-28 | 2018-08-14 | 京东方科技集团股份有限公司 | A kind of pixel circuit and its driving method, display device |
| CN109308878B (en) * | 2018-09-30 | 2020-11-27 | 京东方科技集团股份有限公司 | Pixel circuit, driving method thereof and display device |
| KR20210114389A (en) * | 2019-01-16 | 2021-09-23 | 소니 세미컨덕터 솔루션즈 가부시키가이샤 | Electro-optical devices and electronic devices |
| CN112669774A (en) * | 2019-10-16 | 2021-04-16 | 苏州超锐微电子有限公司 | AMOLED pixel driving circuit and method for compensating material abnormity |
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| WO2015196730A1 (en) | 2015-12-30 |
| CN104167168A (en) | 2014-11-26 |
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