CN105931600A - AMOLED (active-matrix organic light emitting diode) display device and compensation method thereof - Google Patents

AMOLED (active-matrix organic light emitting diode) display device and compensation method thereof Download PDF

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Publication number
CN105931600A
CN105931600A CN201610539213.0A CN201610539213A CN105931600A CN 105931600 A CN105931600 A CN 105931600A CN 201610539213 A CN201610539213 A CN 201610539213A CN 105931600 A CN105931600 A CN 105931600A
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China
Prior art keywords
voltage
displayer
pixel cell
power supply
pole
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CN201610539213.0A
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Chinese (zh)
Inventor
盖翠丽
林奕呈
张保侠
王龙彦
李全虎
王玲
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京东方科技集团股份有限公司
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Priority to CN201610539213.0A priority Critical patent/CN105931600A/en
Publication of CN105931600A publication Critical patent/CN105931600A/en

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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
    • G09G3/3233Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

Abstract

The invention provides an AMOLED (active-matrix organic light emitting diode) display device and a compensation method thereof. The display device comprises a pixel unit and a voltage drop compensation unit. The voltage drop compensation unit comprises a control subunit and a detection subunit, wherein the detection subunit is used for acquiring voltage of a power supply node of the pixel unit and sending the voltage to the control subunit; and the control subunit is used for determining voltage variation of the power supply node according to the voltage and standard voltage and modifying data signals of the corresponding pixel unit based on the voltage variation so as to compensate the voltage variation. The AMOLED display device and the compensation method thereof provided by the invention can compensate voltage drop (IR Drop) generated by power supply voltage on a wire, so that the brightness uniformity of an AMOLED display panel can be improved, and a problem of brightness nonuniformity caused by the IR Drop is also solved.

Description

Displayer part and compensation method thereof

Technical field

The invention belongs to technical field of liquid crystal display, be specifically related to a kind of displayer part And compensation method.

Background technology

In recent years, Organic Light Emitting Diode (organic light emitting diode, OLED) becomes For emerging flat-panel screens product the most popular both at home and abroad, this is because OLED display tool Have self-luminous, wide viewing angle, the short reaction time, high-luminous-efficiency, wide colour gamut, low-work voltage, Panel is thin, can make large scale and the characteristic such as the panel of deflection and processing procedure are simple, and it is also There are the potentiality of low cost.

Along with epoch and the progress of technology, large scale, high-resolution displayer part Gradually growing up, accordingly, large scale displayer part is also required to large-size Panel and greater number of pixel, panel conductor length is more and more longer, and conductor resistance is the biggest, Therefore, supply voltage inevitably produces voltage drop (IR Drop) on wire, and, The voltage drop of each image element circuit is different, thus results in the supply voltage that each image element circuit obtains Difference, thus under identical voltage data signal input, different image element circuits has difference Electric current, brightness output, and then cause the display brightness of whole panel uneven, and picture Difference, the IR Drop of pixel also can follow difference.

Fig. 1 is an image element circuit figure of displayer part, for modal 2T1C Structure, it by two N-type TFT with one storage electric capacity form, this 2T1C structure Image element circuit, be only capable of playing and voltage transformation is electric current thus drives Organic Light Emitting Diode to send out The effect of light, does not have any compensation function.

Summary of the invention

It is contemplated that at least solve one of technical problem present in prior art, it is proposed that one Plant displayer part and compensation method thereof.

For solving one of the problems referred to above, the invention provides a kind of displayer part, bag Include: pixel cell and voltage-drop compensation unit, described voltage-drop compensation unit include control subelement and Detection sub-unit, wherein, described detection sub-unit, for gathering the power supply of described pixel cell The voltage of node, and this voltage is sent to described control subelement;Described control subelement, For determining the voltage variety of power supply node according to described voltage and normal voltage, and based on this The data signal of the pixel cell that voltage variety amendment is corresponding compensates this voltage variety.

Preferably, described detection sub-unit includes: the 4th transistor, and it controls end and the first control Holding wire processed is connected, and the first pole is connected with described power supply node, and the second pole controls son list with described Unit is connected, and makes described 4th crystalline substance during for loading useful signal on described first control signal wire First pole of body pipe connects with the second pole.

Preferably, each described pixel cell includes: input subelement, itself and scan signal line It is connected with data signal line, for opening when scan signal line loads useful signal, exports number Signal according to holding wire input;Exporting subelement, it is connected with power supply by power supply node, and It is connected with the Organic Light Emitting Diode in described pixel cell, for according to described input subelement The signal of output controls described Organic Light Emitting Diode and is turned on and off.

Preferably, described displayer part also includes: threshold compensation unit, is used for mending Repay the threshold voltage of described Organic Light Emitting Diode;And/or, described output subelement includes driving Transistor, its control end is connected with the outfan of described input subelement, and the first pole has with described The anode of machine light emitting diode is connected, and the second pole is connected with described power supply node;Described AMOLED Display device also includes: threshold compensation unit, for compensating the driving in described output subelement The threshold voltage of transistor.

Preferably, described input subelement includes: the first transistor, and it controls end and sweeps with described Retouching holding wire to be connected, its first pole is connected with described data signal line, and the second pole is as outfan; Described output subelement includes: drive transistor, and its control end is defeated with described input subelement Going out end to be connected, the first pole is connected with the anode of described Organic Light Emitting Diode, and the second pole is with described Power supply node is connected;Storage electric capacity, its two ends respectively with the control end of described driving transistor and First is the most connected.

Preferably, described threshold compensation unit includes: third transistor, and it controls end and second Control signal wire is connected, the first pole and described driving transistor and described Organic Light Emitting Diode Connecting node to be connected, the second pole is as outfan, in order to add on described second control signal wire The first pole of described third transistor is made to connect with the second pole when carrying useful signal.

Preferably, described detection sub-unit, for described displayer part open and / or when closing, gather the voltage of the power supply node of described pixel cell, and this voltage is sent extremely Described control subelement.

Preferably, described control subelement, for determining correspondence according to described voltage variety Glow current variable quantity, according to the relation between described glow current and described data signal with true Fixed glow current variable quantity, determines data signal variable quantity;Come based on described data semaphore Compensate the data signal of corresponding pixel cell.

Preferably, described detection sub-unit, brilliant for the driving in compensating described pixel cell After the threshold voltage of body pipe and/or Organic Light Emitting Diode, gather the power supply node of pixel cell Voltage.

The present invention also provides for the compensation method of a kind of displayer part, including: gather picture The voltage of the power supply node of element unit;Power supply node is determined according to described voltage and normal voltage Voltage variety, and the data signal of pixel cell based on this voltage variety amendment correspondence is next Compensate this voltage variety.

Preferably, the data signal of the described pixel cell corresponding based on the amendment of this voltage variety Compensate this voltage variety, including: the luminous electricity of correspondence is determined according to described voltage variety Stream variable quantity;Electric according to the relation between described glow current and data signal and the luminescence determined Stream variable quantity, determines data signal variable quantity;It is the most right to compensate based on described data semaphore The data signal of the pixel cell answered.

Preferably, the described glow current variable quantity determining correspondence according to described voltage variety, Including: obtain described voltage variety and the relation of described glow current variable quantity by experiment; Relation and described voltage variety according to obtaining determine glow current variable quantity.

Preferably, before the voltage of the power supply node of described collection pixel cell, also include; Compensate the driving transistor in described pixel cell and/or the threshold voltage of Organic Light Emitting Diode.

Preferably, the voltage of the power supply node of described collection pixel cell, including: described When displayer part is opened and/or closed, gather the electricity of the power supply node of pixel cell Pressure.

The method have the advantages that

The displayer part of present invention offer and compensation method thereof, pass through detection sub-unit Gather the voltage of the power supply node of described pixel cell and this voltage sent to described control single Unit;Determine the voltage of power supply node again according to described voltage and normal voltage by controlling subelement Variable quantity, and data signal based on pixel cell corresponding to this voltage variety amendment compensates This voltage variety, can compensate supply voltage and produce voltage drop (IR Drop) on wire, It is thus able to improve the brightness uniformity of AMOLED display floater, namely solves due to IR The brightness disproportionation problem that Drop causes.

Accompanying drawing explanation

A kind of structural representation of the display floater local that Fig. 1 provides for the embodiment of the present invention;

The theory diagram of the displayer part that Fig. 2 provides for the embodiment of the present invention;

The displayer with a pixel cell that Fig. 3 provides for the embodiment of the present invention The physical circuit figure of part;

Fig. 4 is the graph of relation of multi-group power node voltage and glow current;

Fig. 5 is multi-group power node voltage variable quantity and the graph of relation of glow current variable quantity;

The work of the compensation method of the displayer part that Fig. 6 provides for the embodiment of the present invention Flow chart.

Detailed description of the invention

For making those skilled in the art be more fully understood that technical scheme, below in conjunction with Displayer part and compensation method thereof that the present invention is provided by accompanying drawing are retouched in detail State.

Embodiment 1

The theory diagram of the displayer part that Fig. 2 provides for the embodiment of the present invention, please join Readding Fig. 2, the displayer part that the embodiment of the present invention provides includes pixel cell 10 He Voltage-drop compensation unit 11, voltage-drop compensation unit 11 includes controlling subelement 111 and detection sub-unit 112, wherein, state detection sub-unit for gathering the voltage of the power supply node of described pixel cell, And this voltage is sent to described control subelement, wherein, so-called power supply node refers to preset For the node being connected with power supply;Described control subelement is for according to described voltage and standard electric Pressure determines the voltage variety of power supply node, and pixel based on this voltage variety amendment correspondence The data signal of unit compensates this voltage variety.

In the present embodiment, each pixel cell 10 includes inputting subelement 101 and output is single Unit 102.Wherein, input subelement 101 and scan signal line GATE and data signal line DATA It is connected, for opening when scan signal line GATE loads useful signal, outputting data signals The signal of line DATA input.

Output subelement 102 is connected with power vd D by power supply node A, and with pixel list Organic Light Emitting Diode OLED in unit 10 is connected, for according to described input subelement 101 The signal of output controls described Organic Light Emitting Diode OLED and is turned on and off.

In the present embodiment, described displayer part also includes: threshold compensation unit 12, for compensating the threshold voltage of described Organic Light Emitting Diode OLED.

Above-mentioned output subelement 102 includes driving transistor, and it is single with described input that it controls end The outfan of unit 101 is connected, the anode phase of the first pole and described Organic Light Emitting Diode OLED Even, the second pole is connected with described power supply node A;In the case, threshold compensation unit 12 is also Compensate for the threshold voltage driving transistor in described output subelement 102.

The displayer with a pixel cell that Fig. 3 provides for the embodiment of the present invention The physical circuit figure of part.Referring to Fig. 3, described detection sub-unit 112 includes the 4th transistor T4.The control end of the 4th transistor T4 and the first control signal wire C1 are connected, the first pole and institute Stating power supply node A to be connected, the second pole is connected with described control subelement 111, for described First pole of described 4th transistor T4 is made when loading useful signal on the first control signal wire C1 Connect with the second pole.

Described input subelement 101 includes the first transistor T1, the control of the first transistor T1 End is connected with described scan signal line GATE, its first pole and described data signal line DATA Being connected, the second pole is as outfan.

Described output subelement includes: drive transistor T2 and storage electric capacity Cst.Wherein, drive The end that controls of dynamic transistor T2 is connected with the outfan of described input subelement 101, the first pole and The anode of described Organic Light Emitting Diode OLED is connected, the second pole and described power supply node A phase Even;Storage electric capacity Cst two ends respectively with control end and the first pole phase of described driving transistor T2 Even.

Described threshold compensation unit 12 includes third transistor T3.Wherein, third transistor T3 Control end and the second control signal wire C2 be connected, the first pole and described driving transistor T2 and The connection node B of described Organic Light Emitting Diode OLED be connected, the second pole as outfan, Described third transistor is made during in order to load useful signal on described second control signal wire C2 First pole of T3 connects with the second pole.

Pixel cell based on this voltage variety Δ Vdd amendment correspondence is described below in detail Data signal compensate this voltage variety.Specifically, this voltage variety Δ Vdd is detection The voltage of the power supply node of subelement 112 detection and the difference of normal voltage, this normal voltage is The supply voltage that actual displayed needs;First, subelement 112 is controlled according to voltage variety Δ Vdd Determine glow current variation delta Id of correspondence, believe according to described glow current Id and described data Relation between number Vdata and the glow current variable quantity determined, determine data signal variable quantity ΔVdata;The number of corresponding pixel cell is compensated based on described data semaphore Δ Vdata The number of it is believed that Vdata.

Wherein, the relation between described glow current Id and described data signal Vdata is as follows:

I d = 1 2 μc o x W L ( V g s - V t h ) 2 = 1 2 μc o x W L ( V d a t a - V S S - V o l e d 0 - V t h ) 2

It is derived from below equation, can be directly according to glow current variable quantity based on below equation Δ Id calculates data signal variation delta Vdata:

ΔV d a t a = 2 ΔI d μc o x W L + V S S + V o l e d 0 + V t h

In above-mentioned formula, μ is carrier mobility, CoxFor driving transistor gate oxide electric capacity, W/L is the breadth length ratio driving transistor conductivity raceway groove;VSS is and Organic Light Emitting Diode OLED Negative electrode be connected voltage, VthFor the threshold voltage driving transistor in pixel cell, Voled0 Running voltage for Organic Light Emitting Diode OLED.

It addition, control how subelement 112 determines sending out of correspondence according to voltage variety Δ Vdd Photocurrent variations amount Δ Id, specifically, is possible not only at one group of the most stored voltage variety In the data base of Δ Vdd and glow current variation delta Id, inquiry is determined;Can also by with Under type draws the curve of the two, then is determined by this curve: in displayer In the preparation process of the array base palte of part, draw power supply node voltage Vdd's and glow current Id Curve, as shown in Figure 4, Fig. 4 includes organizing this curve more, the method for drafting of this many suites line For: the voltage of scan control line GATE is changed to mono-step of 14V, every 2V from 0V;Electricity Source node voltage Vdd from 0V to 30V, mono-step of every 0.2V;Again based on above-mentioned multiple songs Line, draws voltage variety Δ Vdd and the curve of glow current variation delta Id, as it is shown in figure 5, Find out under a grid voltage used by this curve of (in other words, scan signal), obtain and send out Photocurrent variations amount Δ Id.

Preferably, detection sub-unit 112 is brilliant for the driving in compensating described pixel cell 10 After the threshold voltage of body pipe T2 and/or Organic Light Emitting Diode OLED, gather pixel cell The voltage of the power supply node of 10, that is, carry out voltage-drop compensation after threshold voltage compensation again, So, to prevent first voltage-drop compensation threshold voltage compensation again from reducing valve value compensation precision, thus The entire compensation precision of AMOLED can be improved.

Additionally preferably, described detection sub-unit 112 is at described displayer part When opening and/or close, gather the voltage of the power supply node A of described pixel cell 10, and will This voltage sends to described control subelement 111, so, by displayer part Carry out voltage-drop compensation when opening and/or close, be possible not only to ensure actual displayed quality, it is also possible to Guarantee will not carry out voltage-drop compensation in real time, and power consumption is big.

From the foregoing, it will be observed that the displayer part that the embodiment of the present invention provides, by detection Unit 112 gathers the voltage of the power supply node of described pixel cell 10 and sends this voltage to institute State control subelement 111;True with normal voltage according to described voltage by controlling subelement 111 again Determine the voltage variety of power supply node, and pixel cell based on this voltage variety amendment correspondence The data signal of 10 compensates this voltage variety, can compensate supply voltage and produce on wire Voltage drop (IR Drop), it is thus possible to improve the brightness uniformity of AMOLED display floater, Namely solve the brightness disproportionation problem caused due to IR Drop.

Embodiment 2

The work of the compensation method of the displayer part that Fig. 6 provides for the embodiment of the present invention Flow chart, refers to Fig. 6, the compensation of the displayer part that the embodiment of the present invention provides Method, including:

S1, gathers the voltage of the power supply node of pixel cell.

S2, determines the voltage variety of power supply node, and base according to described voltage and normal voltage Data signal in the pixel cell of this voltage variety amendment correspondence compensates this voltage variety.

Preferably, the described picture corresponding based on the amendment of this voltage variety in above-mentioned steps S2 The data signal of element unit compensates this voltage variety, including: according to described voltage variety Determine the glow current variable quantity of correspondence;According to the pass between described glow current and data signal System's (seeing above-described embodiment 1) and the glow current variable quantity determined, determine that data signal becomes Change amount;The data signal of corresponding pixel cell is compensated based on described data semaphore.

It is further preferred that the described glow current variable quantity determining correspondence according to described voltage variety, Including: obtain described voltage variety and the relation of described glow current variable quantity by experiment; Relation and described voltage variety according to obtaining determine that glow current variable quantity is (referring specifically to upper State the two ways in embodiment 1)

Preferably, before the voltage of the power supply node of described collection pixel cell, also include; Driving transistor in compensation pixel unit and/or the threshold voltage of Organic Light Emitting Diode.

Furthermore it is preferred that step S1, open at described displayer part and/or During closedown, gather the voltage of the power supply node of pixel cell.

It is understood that the principle that is intended to be merely illustrative of the present of embodiment of above and adopt Illustrative embodiments, but the invention is not limited in this.General in this area For logical technical staff, without departing from the spirit and substance in the present invention, can make Various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.

Claims (14)

1. a displayer part, it is characterised in that including: pixel cell and pressure Fall compensating unit, described voltage-drop compensation unit includes controlling subelement and detection sub-unit, wherein,
Described detection sub-unit, for gathering the voltage of the power supply node of described pixel cell, and This voltage is sent to described control subelement;
Described control subelement, for determining power supply node according to described voltage and normal voltage Voltage variety, and the data signal of pixel cell based on this voltage variety amendment correspondence is next Compensate this voltage variety.
Displayer part the most according to claim 1, it is characterised in that institute State detection sub-unit to include:
4th transistor, it controls end and the first control signal wire is connected, the first pole and described electricity Source node is connected, and the second pole is connected with described control subelement, for controlling letter described first The first pole of described 4th transistor is made to connect with the second pole when loading useful signal on number line.
Displayer part the most according to claim 1, it is characterised in that every Individual described pixel cell includes:
Input subelement, it is connected with scan signal line and data signal line, at scanning letter Number line is opened when loading useful signal, the signal of outputting data signals line input;
Output subelement, it is connected with power supply by power supply node, and with in described pixel cell Organic Light Emitting Diode be connected, for according to described input subelement output signal control institute State Organic Light Emitting Diode to be turned on and off.
Displayer part the most according to claim 3, it is characterised in that institute State displayer part also to include: threshold compensation unit, be used for compensating described organic light emission The threshold voltage of diode;And/or
Described output subelement includes driving transistor, and it controls end and described input subelement Outfan is connected, and the first pole is connected with the anode of described Organic Light Emitting Diode, the second pole and institute State power supply node to be connected;Described displayer part also includes: threshold compensation unit, uses In the threshold voltage driving transistor compensated in described output subelement.
Displayer part the most according to claim 3, it is characterised in that institute State input subelement to include:
The first transistor, its control end is connected with described scan signal line, and its first pole is with described Data signal line is connected, and the second pole is as outfan;
Described output subelement includes:
Driving transistor, it controls end and is connected with the outfan of described input subelement, the first pole Being connected with the anode of described Organic Light Emitting Diode, the second pole is connected with described power supply node;
Storage electric capacity, its two ends control end and first with described driving transistor respectively is extremely connected.
6. the displayer part stated according to claim 4, it is characterised in that described Threshold compensation unit includes:
Third transistor, it controls end and the second control signal wire is connected, and the first pole is driven with described Dynamic transistor is connected with the connection node of described Organic Light Emitting Diode, the second pole as outfan, The of described third transistor is made during in order to load useful signal on described second control signal wire One pole connects with the second pole.
Displayer part the most according to claim 1, it is characterised in that institute State detection sub-unit, for when described displayer part is opened and/or closes, adopting Collect the voltage of the power supply node of described pixel cell, and this voltage is sent to described control single Unit.
Displayer part the most according to claim 1, it is characterised in that institute State control subelement, for determining the glow current variable quantity of correspondence according to described voltage variety, Change according to the relation between described glow current and described data signal and the glow current determined Amount, determines data signal variable quantity;Corresponding picture is compensated based on described data semaphore The data signal of element unit.
Displayer part the most according to claim 4, it is characterised in that institute State detection sub-unit, for the driving transistor compensated in described pixel cell and/or organic After the threshold voltage of optical diode, gather the voltage of the power supply node of pixel cell.
10. the compensation method of a displayer part, it is characterised in that including:
Gather the voltage of the power supply node of pixel cell;
The voltage variety of power supply node is determined according to described voltage and normal voltage, and based on this The data signal of the pixel cell that voltage variety amendment is corresponding compensates this voltage variety.
The compensation method of 11. displayer parts according to claim 10, its Being characterised by, the data signal of the described pixel cell corresponding based on the amendment of this voltage variety is come Compensate this voltage variety, including:
The glow current variable quantity of correspondence is determined according to described voltage variety;
Become according to the relation between described glow current and data signal and the glow current determined Change amount, determines data signal variable quantity;
The data signal of corresponding pixel cell is compensated based on described data semaphore.
The compensation method of 12. displayer parts according to claim 11, It is characterized in that, the described glow current variable quantity determining correspondence according to described voltage variety, Including:
Described voltage variety and the relation of described glow current variable quantity is obtained by experiment;
Relation and described voltage variety according to obtaining determine glow current variable quantity.
The compensation method of 13. displayer parts according to claim 10, It is characterized in that, before the voltage of the power supply node of described collection pixel cell, also include;
Compensate the driving transistor in described pixel cell and/or the threshold value of Organic Light Emitting Diode Voltage.
The compensation method of 14. displayer parts according to claim 10, It is characterized in that, the voltage of the power supply node of described collection pixel cell, including:
When described displayer part is opened and/or closes, gather pixel cell The voltage of power supply node.
CN201610539213.0A 2016-07-08 2016-07-08 AMOLED (active-matrix organic light emitting diode) display device and compensation method thereof CN105931600A (en)

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CN106782326A (en) * 2017-03-06 2017-05-31 京东方科技集团股份有限公司 Image element circuit and its driving method, display device
CN107230454A (en) * 2017-07-11 2017-10-03 深圳市华星光电技术有限公司 Display device and its driving method
CN107301843A (en) * 2017-08-28 2017-10-27 深圳市华星光电半导体显示技术有限公司 The power configuration structure and collocation method of top emitting AMOLED panel
CN108269521A (en) * 2018-01-19 2018-07-10 昆山国显光电有限公司 Compensate the method, apparatus of supply voltage and display equipment in display panel
CN108269534A (en) * 2017-01-03 2018-07-10 昆山国显光电有限公司 AMOLED display device and its driving method
WO2018223694A1 (en) * 2017-06-07 2018-12-13 京东方科技集团股份有限公司 Method for compensating for organic light-emitting display panel, and related apparatus
CN109119024A (en) * 2018-08-28 2019-01-01 武汉天马微电子有限公司 A kind of driving circuit, driving method, display panel and display device
WO2019033483A1 (en) * 2017-08-18 2019-02-21 深圳市华星光电半导体显示技术有限公司 Brightness adjustment device and brightness adjustment method for display device, and display device
CN110010064A (en) * 2019-04-19 2019-07-12 Oppo广东移动通信有限公司 Pixel-driving circuit, display screen and electronic equipment
WO2019238013A1 (en) * 2018-06-12 2019-12-19 京东方科技集团股份有限公司 Method and device for detecting threshold voltage of driving transistor, and display device
CN110660361A (en) * 2019-09-29 2020-01-07 昆山国显光电有限公司 Display screen and method for improving brightness uniformity of display screen
WO2020118833A1 (en) * 2018-12-13 2020-06-18 武汉华星光电半导体显示技术有限公司 Display device and driving method therefor
CN108269534B (en) * 2017-01-03 2020-06-23 昆山国显光电有限公司 AMOLED display device and driving method thereof

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