CN106328060A - AMOLED panel and drift compensation method for panel pixel driving circuit - Google Patents
AMOLED panel and drift compensation method for panel pixel driving circuit Download PDFInfo
- Publication number
- CN106328060A CN106328060A CN201610810654.XA CN201610810654A CN106328060A CN 106328060 A CN106328060 A CN 106328060A CN 201610810654 A CN201610810654 A CN 201610810654A CN 106328060 A CN106328060 A CN 106328060A
- Authority
- CN
- China
- Prior art keywords
- oled
- voltage
- panel
- transistor
- compensation
- 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.)
- Granted
Links
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]
- 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
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)
Abstract
The invention provides an AMOLED panel and a drift compensation method for a panel pixel driving circuit, which relate to the AMOLED panel brightness adjustment technology. The AMOLED panel comprises a pixel driving circuit and a drift compensation circuit. The drift compensation circuit comprises an OLED current monitoring unit and a compensation voltage calculation unit, wherein the OLED current monitoring unit is used for monitoring the magnitude of current passing through the inner OLED of the panel; and the compensation voltage calculation unit is connected with the OLED current monitoring unit for calculating the compensation voltage according to the magnitude of current of the OLED acquired by the OLED current monitoring unit and providing the compensation voltage to a driving transistor in the pixel driving circuit to compensate the voltage drift of the driving transistor. The method of the invention has the beneficial effects that the structure is simple; the compensation signal voltage drift is small; and the compensation signals are more stable.
Description
Technical field
The present invention relates to the brightness regulation technology of a kind of active matrix organic light-emitting diode.
Background technology
AMOLED is as the Display Technique of a new generation, and it has low-power consumption, high colour gamut, high brightness, high-resolution, wide viewing angle
With the advantage of high response speed, therefore, AMOLED panel enjoys the favor in market.
In Thin Film Transistor-LCD, brightness is by voltage-controlled, as long as by the precision controlling of pixel voltage
To several millivolts, it is possible to limit the inhomogeneities of brightness required ± 1% in the range of, this is easy to reach because
In Thin Film Transistor-LCD, pixel thin film transistor need not carry out voltage signal transmitting conversion, it is only necessary to will
The switch that voltage signal is directly sent to pixel from data wire.And in AMOLED, brightness is by flowing through OLED current
Control, remain that the inhomogeneities of brightness required ± 1% in the range of, this means that requirement is by AMOLED panel
Electric current control in the range of ± 1%.Owing to most of existing semiconductor element product circuit all transmits voltage signal, and not
It is current signal, so after the voltage signal of AMOLED panel must being converted into current signal, current signal being stored in
In one frame pixel period of AMOLED panel, but this process has been difficult to.Owing to the low temperature polycrystalline silicon of AMOLED panel is thin
The threshold voltage of film transistor and channel mobility are uneven in spatial distribution, cause the amorphous silicon membrane of AMOLED panel
The threshold voltage of transistor and channel mobility can offset in time, and these shortcomings all can cause the inhomogeneities of brightness of display screen
And unstability.
Existing AMOLED panel drive circuit is 2T1C AMOLED panel drive circuit, is illustrated in figure 1 existing
AMOLED panel drive circuit；The grid of the first film transistor 1 is connected with line n gated sweep holding wire, and the first film is brilliant
The source electrode of body pipe 1 and the n-th row communication signal line are connected, the drain electrode of the first film transistor 1 simultaneously with one end of storage electric capacity 3 and
The grid of the second thin film transistor (TFT) 2 is connected；The other end ground connection of storage electric capacity 3；The source electrode of the second thin film transistor (TFT) 2 drives with OLED
Moving-wire is connected, and the drain electrode of the second thin film transistor (TFT) 2 is connected with the anode of OLED4, the minus earth of OLED4；Wherein, the first film
Transistor 1 is the switch for controlling to store electric capacity 3 charging, and the second thin film transistor (TFT) 2 is for driving transistor, the second film crystal
Pipe 2 is used for driving OLED4, and storage electric capacity 3 is thin for signal gray scale voltage and then the control second of storage the n-th row communication signal line
The film transistor 2 driving electric current to OLED4；2T1CAMOLED panel drive circuit drives process to include two stages, the first rank
Section is the charging stage of storage electric capacity 3, as in figure 2 it is shown, the charging voltage at first stage storage electric capacity 3 is Vdt；Second stage
For the glow phase of OLED4, as it is shown on figure 3, flowing through the electric current of OLED4 in second stage is I；Described flow through in second stage
The electric current I=K*Vdd-Vth/2 of OLED4；Wherein, K is constant, and the value of K depends on the channel dimensions of the second thin film transistor (TFT) 2,
I.e. depending on dielectric constant and the semiconductor mobility of the second thin film transistor (TFT) 2 gate insulator, Vdd is that OLED drives line
Magnitude of voltage, Vth is the threshold voltage of the second thin film transistor (TFT) 2；Owing to the threshold voltage Vth of the second thin film transistor (TFT) 2 exists drift
Move, cause driving weak effect.
Summary of the invention
For above-mentioned the problems of the prior art, present applicant proposes a kind of AMOLED panel and this panel pixel drives electricity
The drift compensation method on road.
A kind of AMOLED panel of the present invention, pixel-driving circuit；
Drift compensating circuit, comprising:
OLED current monitoring means, it flows through the size of current of panel itself OLED for monitoring；
Compensating voltage computation unit, it connects described OLED current monitoring means, for monitoring according to described OLED current
The size of current of the OLED that unit obtains calculates and compensates voltage, and is supplied to driving in described pixel-driving circuit by compensating voltage
Dynamic transistor, to compensate the voltage drift of described driving transistor.
According to one embodiment of present invention, described OLED current monitoring means flows through the outside dummy of panel by measurement
The size of current of OLED determines the size of current of panel itself OLED.
According to one embodiment of present invention, in described pixel-driving circuit, for driving OLED's that line n m arranges
Driver element includes:
Switching transistor, its grid is connected with the outfan of line n gated sweep holding wire, its source electrode and m row communication
The outfan of holding wire is connected；
Storage electric capacity, its one end connects the drain electrode of described switching transistor, its other end electrical ground；
Driving transistor, its grid connects the drain electrode of described switching transistor, and its source electrode drives line to be connected with OLED, its leakage
Pole connects the anode of OLED, the negative electrode electrical ground of described OLED；
Compensating transistor, the outfan of its grid and the (n+1)th row gated sweep holding wire is connected, its source electrode and described drift
The outfan compensating voltage computation unit compensating circuit is connected, and is used for receiving compensation voltage；
Coupling electric capacity, its one end connects the drain electrode of described compensation transistor, and its other end connects described driving transistor
Grid.
According to one embodiment of present invention, the built-in following formula of described compensation voltage computation unit, in order to calculate compensation
Voltage:
Wherein, Δ VthIt it is the threshold voltage drift of the described driving transistor that the curent change according to panel itself OLED calculates
Shifting amount, Δ V be compensate voltage amplitude, C1 and C2 be respectively described storage electric capacity and coupling electric capacity size, Cgd1, Cgd2,
Cgd3 is described switching transistor respectively, drives transistor and compensate the parasitic capacitance of transistor.
According to one embodiment of present invention, described drift compensating circuit compensation voltage computation unit will compensate voltage with
The form of pulse-period signal is supplied to the driver element in described pixel-driving circuit, the pulsewidth etc. of described pulse-period signal
Width in gated sweep signal.
The drift compensation method of a kind of AMOLED panel pixel-driving circuit of the present invention, comprises the following steps:
S100, monitoring flow through the size of current of panel itself OLED；
S200, basis flow through the size of current of panel itself OLED and calculate compensation voltage；
S300, the driving transistor being supplied in pixel-driving circuit by compensation voltage, with the electricity of compensation for drive transistor
Pressure drift.
According to one embodiment of present invention, in described step S100, flow through the outside dummyOLED's of panel by measurement
Size of current determines the size of current of panel itself OLED.
According to one embodiment of present invention, in described step S300, in the driver element of the OLED of line n m row,
When compensating transistor and turning under the effect of the (n+1)th row scanning drive signal, compensate voltage by coupling capacitive load to driving
The grid of dynamic transistor.
According to one embodiment of present invention, in described step S300, compensation voltage is pulse-period signal, its pulsewidth etc.
Width in gated sweep signal.
The invention has the beneficial effects as follows drift compensating circuit simple in construction of the present invention；Drift compensating circuit output
The size of current that the size compensating signal voltage flows to compensate semiconductor element by OLED current monitoring unit is adjusted, and mends
The size repaying signal voltage is easier to control；A coupling electric capacity and a compensation film crystalline substance is added in pixel-driving circuit
Body pipe, reduces the drift value driving thin film transistor (TFT), and the voltage making compensation signal is more stable, drives effect more preferable.
Above-mentioned technical characteristic can combine in any suitable manner or be substituted, as long as can reach by the technical characteristic of equivalence
To the purpose of the present invention.
Accompanying drawing explanation
Hereinafter based on embodiment reference accompanying drawing, the present invention will be described in more detail.Wherein:
Fig. 1 shows existing AMOLED panel pixel-driving circuit in background technology；
Fig. 2 shows in background technology the drive circuit of first stage during existing AMOLED panel pixel driver；
Fig. 3 shows in background technology the drive circuit of second stage during existing AMOLED panel pixel driver；
Fig. 4 shows the structural representation of a kind of AMOLED panel pixel-driving circuit described in detailed description of the invention one；
Fig. 5 shows the structural representation of AMOLED panel in detailed description of the invention one；
Fig. 6 shows the sequential chart of the voltage amplitude compensating signal in detailed description of the invention one.
In the accompanying drawings, identical parts use identical reference.Accompanying drawing is not according to actual ratio.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Detailed description of the invention one: combine Fig. 4 to Fig. 6 and present embodiment is described, a kind of AMOLED described in present embodiment
Panel includes pixel-driving circuit and drift compensating circuit 7；
The OLED4 that described pixel-driving circuit arranges for driving line n m；Described pixel-driving circuit includes switch crystalline substance
Body pipe 1, driving transistor 2, storage electric capacity 3, compensation transistor 5 and coupling electric capacity 6；
Described drift compensating circuit circuit 7 includes OLED current monitoring means 15 and compensates voltage computation unit 14；OLED
Current monitoring unit 15 flows through the size of current of panel itself OLED for monitoring；Compensate voltage computation unit 14 and described OLED
Current monitoring unit 15 is connected；Compensate voltage computation unit 14 for according to the acquisition of described OLED current monitoring means 15
The size of current of OLED4 calculates and compensates voltage, and will compensate the driving transistor that voltage is supplied in described pixel-driving circuit
2, to compensate the voltage drift of described driving transistor.
The grid of described switching transistor 1 is connected with the outfan of line n gated sweep holding wire, switching transistor 1
The outfan of source electrode and m row communication signal line is connected, the drain electrode of switching transistor 1 simultaneously with one end of storage electric capacity 3 and the
The grid of two thin film transistor (TFT)s 2 is connected；
The other end electrical ground of described storage electric capacity 3；
The source electrode of described driving transistor 2 drives line to be connected with OLED, and the drain electrode of the second thin film transistor (TFT) 2 is with OLED4's
Anode is connected；
The minus earth of described OLED4；
The grid of described compensation transistor 5 and the outfan of the (n+1)th row gated sweep holding wire are connected, and compensate transistor 5
Drain electrode with coupling electric capacity 6 one end be connected；Compensate the source electrode of transistor 5 and the outfan phase compensating voltage computation unit 14
Even；
The other end of described coupling electric capacity 6 is connected with the grid driving transistor 2；
A kind of AMOLED panel pixel-driving circuit composition AMOLED panel described in multiple present embodiments, AMOLED
Panel also includes power module 13, signaling interface 8, time schedule controller 9, source integrated circuit 10, gray scale module 11 and Men Ji
Become circuit 12；
Described signaling interface 8 accesses signal with outside and is connected, and the outside signal that accesses includes power supply signal and low-voltage differential letter
Number, Low Voltage Differential Signal is display signal；
The power supply signal outfan of described signaling interface 8 is connected with the power supply signal input of power module 13；Signal connects
The power supply signal of external signal is distributed to power module 13 by mouth 8；
The Low Voltage Differential Signal input phase of the Low Voltage Differential Signal outfan of described signaling interface 8 and time schedule controller 9
Even；The Low Voltage Differential Signal of external signal is distributed to time schedule controller 9 by signaling interface 8；
The outfan of the voltage signal of described power module 13 simultaneously with time schedule controller 9, source integrated circuit 10, gray scale mould
Block 11 is connected with the voltage signal inputs of door integrated circuit 12；Described power module 13 according to power supply signal respectively to sequential control
Device 9 processed, source integrated circuit 10, gray scale module 11 and door integrated circuit 12 provide different voltage signals.
The source integrated circuit control signal outfan of described time schedule controller 9 and the source integrated circuit control of source integrated circuit 10
Signal input part processed is connected；The door integrated circuit control signal outfan of time schedule controller 9 is integrated with the door of door integrated circuit 12
Circuit control signal input is connected；Time schedule controller 9 produces source integrated circuit 10 and the integrated electricity of door according to Low Voltage Differential Signal
The control signal that road 12 is capable of identify that.
The reference voltage signal outfan of described gray scale module 11 and the reference voltage signal input of source integrated circuit 10
It is connected；Gray scale module 11 provides reference voltage for source integrated circuit 10.
The outfan that outfan is communication signal of described source integrated circuit 10；Communication signal is with multiple row communication signal line
Form exports.
The outfan that outfan is gated sweep signal of described door integrated circuit 12；Gated sweep signal is with multirow grid
The mode of scan signal line exports.
The voltage computation unit that compensates of described drift compensating circuit provides compensating voltage with the form of pulse-period signal
To the driver element in described pixel-driving circuit, the pulsewidth of described pulse-period signal is equal to the width of gated sweep signal.
The size of current that described OLED current monitoring means 15 flows through the outside dummy OLED of panel by measurement determines
The size of current of panel itself OLED4
In the present embodiment, the built-in following formula of described compensation voltage computation unit, in order to calculate compensation voltage:
Wherein, Δ VthIt it is the threshold voltage drift of the described driving transistor that the curent change according to panel itself OLED calculates
Shifting amount, Δ V be compensate voltage amplitude, C1 and C2 be respectively described storage electric capacity and coupling electric capacity size, Cgd1, Cgd2,
Cgd3 is described switching transistor respectively, drives transistor and compensate the parasitic capacitance of transistor.
Compensating the sequential chart of voltage amplitude of signal as shown in Figure 6, in figure 6, Δ V is the voltage amplitude compensating signal, T
For compensating the pulse period of signal.
Detailed description of the invention two: present embodiment is based on the AMOLED panel pixel driver described in detailed description of the invention one
The drift compensation method of circuit, in the present embodiment, comprises the following steps:
S100, monitoring flow through the size of current of panel itself OLED；The electricity of the outside dummyOLED of panel is flowed through by measurement
Stream size determines the size of current of panel itself OLED.
S200, basis flow through the size of current of panel itself OLED and calculate compensation voltage；
S300, the driving transistor being supplied in pixel-driving circuit by compensation voltage, with the electricity of compensation for drive transistor
Pressure drift；In the driver element of the OLED of line n m row, when compensating the transistor effect in the (n+1)th row scanning drive signal
During lower conducting, compensate voltage by coupling capacitive load to the grid driving transistor.Compensation voltage is pulse-period signal, its
Pulsewidth is equal to the width of gated sweep signal.
Although herein with reference to specific embodiment, the present invention is described it should be understood that, these are real
Execute the example that example is only principles and applications.It should therefore be understood that exemplary embodiment can be carried out
Many amendments, and can be designed that other layout, without departing from the spirit of the present invention that claims are limited
And scope.It should be understood that and can combine different appurtenances by being different from original claim manner described
Profit requires and feature specifically described herein.Will also be appreciated that combining the feature described by independent embodiment can use
In other described embodiments.
Claims (9)
1. an AMOLED panel, it is characterised in that including:
Pixel-driving circuit；
Drift compensating circuit, comprising:
OLED current monitoring means, it flows through the size of current of panel itself OLED for monitoring；
Compensating voltage computation unit, it connects described OLED current monitoring means, for according to described OLED current monitoring means
The size of current of the OLED obtained calculates and compensates voltage, and will compensate the driving crystalline substance that voltage is supplied in described pixel-driving circuit
Body pipe, to compensate the voltage drift of described driving transistor.
AMOLED panel the most according to claim 1, it is characterised in that:
Described OLED current monitoring means flows through in the size of current of the outside dummy OLED of panel determines panel by measurement
The size of current of portion OLED.
AMOLED panel the most according to claim 1, it is characterised in that in described pixel-driving circuit, for driving n-th
The driver element of the OLED of row m row includes:
Switching transistor, its grid is connected with the outfan of line n gated sweep holding wire, its source electrode and m row communication signal
The outfan of line is connected；
Storage electric capacity, its one end connects the drain electrode of described switching transistor, its other end electrical ground；
Driving transistor, its grid connects the drain electrode of described switching transistor, and its source electrode drives line to be connected with OLED, its company of drain electrode
Connect the anode of OLED, the negative electrode electrical ground of described OLED；
Compensating transistor, the outfan of its grid and the (n+1)th row gated sweep holding wire is connected, its source electrode and described drift compensation
The outfan compensating voltage computation unit of circuit is connected, and is used for receiving compensation voltage；
Coupling electric capacity, its one end connects the drain electrode of described compensation transistor, and its other end connects the grid of described driving transistor.
AMOLED panel the most according to claim 3, it is characterised in that the built-in following calculation of described compensation voltage computation unit
Formula, in order to calculate compensation voltage:
Wherein, Δ VthIt it is the threshold voltage shift of the described driving transistor that the curent change according to panel itself OLED calculates
Amount, Δ V be compensate voltage amplitude, C1 and C2 be respectively described storage electric capacity and coupling electric capacity size, Cgd1, Cgd2,
Cgd3 is described switching transistor respectively, drives transistor and compensate the parasitic capacitance of transistor.
AMOLED panel the most according to claim 3, it is characterised in that:
The voltage computation unit that compensates of described drift compensating circuit is supplied to institute by compensating voltage with the form of pulse-period signal
Stating the driver element in pixel-driving circuit, the pulsewidth of described pulse-period signal is equal to the width of gated sweep signal.
6. the drift compensation side of the pixel-driving circuit of the AMOLED panel as described in any one in claim 1 to 5
Method, comprises the following steps:
S100, monitoring flow through the size of current of panel itself OLED；
S200, basis flow through the size of current of panel itself OLED and calculate compensation voltage；
S300, the driving transistor that is supplied in pixel-driving circuit of voltage will be compensated, float with the voltage of compensation for drive transistor
Move.
Drift compensation method the most according to claim 6, it is characterised in that:
In described step S100, the size of current being flowed through the outside dummy OLED of panel by measurement determines panel itself OLED
Size of current.
Drift compensation method the most according to claim 6, it is characterised in that:
In described step S300, in the driver element of the OLED of line n m row, drive in the (n+1)th row scanning when compensating transistor
When turning under the effect of dynamic signal, compensate voltage by coupling capacitive load to the grid driving transistor.
Drift compensation method the most according to claim 8, it is characterised in that in described step S300, compensation voltage is arteries and veins
Rushing periodic signal, its pulsewidth is equal to the width of gated sweep signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610810654.XA CN106328060B (en) | 2016-09-07 | 2016-09-07 | A kind of drift compensation method of AMOLED panel and the panel pixel driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610810654.XA CN106328060B (en) | 2016-09-07 | 2016-09-07 | A kind of drift compensation method of AMOLED panel and the panel pixel driving circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106328060A true CN106328060A (en) | 2017-01-11 |
| CN106328060B CN106328060B (en) | 2019-02-12 |
Family
ID=57788129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610810654.XA Active CN106328060B (en) | 2016-09-07 | 2016-09-07 | A kind of drift compensation method of AMOLED panel and the panel pixel driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106328060B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945764A (en) * | 2018-01-08 | 2018-04-20 | 惠科股份有限公司 | The driving method of the drive circuit of display panel, display device and display panel |
| CN108628496A (en) * | 2018-04-28 | 2018-10-09 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, touch control display apparatus |
| CN109727585A (en) * | 2018-12-24 | 2019-05-07 | 惠科股份有限公司 | Show driving assembly and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355833A (en) * | 2007-07-27 | 2009-01-28 | 三星Sdi株式会社 | Organic light emitting display and driving method thereof |
| CN104240639A (en) * | 2014-08-22 | 2014-12-24 | 京东方科技集团股份有限公司 | Pixel circuit, organic electroluminescence display panel and display device |
| CN104751786A (en) * | 2013-12-31 | 2015-07-01 | 乐金显示有限公司 | Organic Light Emitting Display Device And Method For Driving The Same |
| CN105702209A (en) * | 2014-12-09 | 2016-06-22 | 乐金显示有限公司 | Current sensing circuit and organic light emitting diode display including the same |
-
2016
- 2016-09-07 CN CN201610810654.XA patent/CN106328060B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355833A (en) * | 2007-07-27 | 2009-01-28 | 三星Sdi株式会社 | Organic light emitting display and driving method thereof |
| CN104751786A (en) * | 2013-12-31 | 2015-07-01 | 乐金显示有限公司 | Organic Light Emitting Display Device And Method For Driving The Same |
| CN104240639A (en) * | 2014-08-22 | 2014-12-24 | 京东方科技集团股份有限公司 | Pixel circuit, organic electroluminescence display panel and display device |
| CN105702209A (en) * | 2014-12-09 | 2016-06-22 | 乐金显示有限公司 | Current sensing circuit and organic light emitting diode display including the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945764A (en) * | 2018-01-08 | 2018-04-20 | 惠科股份有限公司 | The driving method of the drive circuit of display panel, display device and display panel |
| CN107945764B (en) * | 2018-01-08 | 2020-06-09 | 惠科股份有限公司 | Driving circuit of display panel, display device and driving method of display panel |
| US11100879B2 (en) | 2018-01-08 | 2021-08-24 | HKC Corporation Limited | Driving circuit of display panel, display apparatus, driving method, and computer storage medium |
| CN108628496A (en) * | 2018-04-28 | 2018-10-09 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, touch control display apparatus |
| CN108628496B (en) * | 2018-04-28 | 2020-11-27 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and touch display device |
| CN109727585A (en) * | 2018-12-24 | 2019-05-07 | 惠科股份有限公司 | Show driving assembly and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106328060B (en) | 2019-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105513536B (en) | A kind of pixel driver chip, method and dot structure | |
| CN104520918B (en) | Display device and its driving method | |
| CN102646386B (en) | Pixel unit circuit, pixel array, panel and panel driving method | |
| EP3649635B1 (en) | Oled pixel circuit, and driving method thereof, and display apparatus | |
| CN102708785B (en) | Pixel unit circuit, working method therefore and organic light emitting diode (OLED) display device | |
| CN105931600A (en) | AMOLED (active-matrix organic light emitting diode) display device and compensation method thereof | |
| CN102651195B (en) | OLED (Organic Light Emitting Diode) pixel structure for compensating light emitting nonuniformity and driving method | |
| CN103400548B (en) | Pixel-driving circuit and driving method, display device | |
| CN104318900B (en) | A kind of organic electroluminescence display device and method of manufacturing same and method | |
| CN102881257B (en) | Active organic light-emitting diode displayer and driving method thereof | |
| CN104715724B (en) | Pixel circuit, drive method thereof and display device | |
| CN103035201B (en) | Organic light-emitting diode pixel circuit, driving method and display panel thereof | |
| CN102708786B (en) | Active matrix organic light emitting diode (AMOLED) pixel unit driving circuit and method, pixel unit and display device | |
| CN103514834B (en) | Pixel for display | |
| CN205004016U (en) | Organic light -emitting diode's drive circuit | |
| CN102651194A (en) | Voltage driving pixel circuit, driving method thereof and display panel | |
| CN104658481B (en) | Pixel compensating circuit, display device and driving method | |
| CN103198793A (en) | Pixel circuit, drive method and display device thereof | |
| CN104575378A (en) | Pixel circuit, display device and display driving method | |
| CN106023892A (en) | Method for driving organic light-emitting display device | |
| CN107093404A (en) | Pixel compensation circuit and display device | |
| CN104637446A (en) | Pixel circuit and driving method thereof and display device | |
| CN106328060A (en) | AMOLED panel and drift compensation method for panel pixel driving circuit | |
| CN203192370U (en) | Pixel circuit and display device | |
| CN109949759A (en) | Scanning signal compensation method, scanning signal compensation circuit and display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |