CN106531083A - Pixel circuit compensation method, OLED display panel and compensation method thereof - Google Patents

Pixel circuit compensation method, OLED display panel and compensation method thereof Download PDF

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Publication number
CN106531083A
CN106531083A CN201611162973.0A CN201611162973A CN106531083A CN 106531083 A CN106531083 A CN 106531083A CN 201611162973 A CN201611162973 A CN 201611162973A CN 106531083 A CN106531083 A CN 106531083A
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China
Prior art keywords
oled
image element
element circuit
display panel
anode potential
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CN201611162973.0A
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Inventor
范刘静
刘海民
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Tianma Microelectronics Co Ltd
Shanghai Tianma AM OLED Co Ltd
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Tianma Microelectronics Co Ltd
Shanghai Tianma AM OLED Co Ltd
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Priority to CN201611162973.0A priority Critical patent/CN106531083A/en
Publication of CN106531083A publication Critical patent/CN106531083A/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
    • G09G3/3258Control 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 voltage across the light-emitting element

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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)
  • Control Of El Displays (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The invention discloses a pixel circuit compensation method, an OLED display panel and a compensation method thereof. The cross voltage of an OLED device between the anode and the cathode is determined by acquiring the anode potential of the OLED device in at least one pixel circuit of at least one color in the OLED display panel so as to compensate high-level signals loaded to the source/drain electrode of driving transistors in each pixel circuit of the color. The current of the OLED device increases along with attenuation of the OLED device in use, and the cross voltage change of the OLED device caused by the life attenuation of the OLED device is compensated to the high-level signals loaded to drive the source/drain electrodes of all the driving transistors of the OLED device of the color so as to improve the ghosting phenomenon.

Description

The compensation method of image element circuit, OLED display panel and its compensation method
Technical field
The present invention relates to display field, espespecially a kind of compensation method of image element circuit, OLED display panel and its compensation side Method.
Background technology
With the progress of Display Technique, increasing active matrix organic light-emitting diode (Active Matrix Organic Light Emitting Diode, AMOLED) display floater enters market, with traditional transistor liquid crystal display surface Plate (Thin Film Transistor Liquid Crystal Display, TFT LCD) is compared, and which has low energy consumption, production The advantages of low cost, self-luminous, wide viewing angle and fast response time, at present, in display fields such as mobile phone, PDA, digital cameras Beginning progressively replaces traditional LCD display.Different using stable voltage control brightness from TFT LCD, AMOLED belongs to electricity Stream drives, and needs stable electric current to control to light.
The circuit structure of existing driving OLED luminous image element circuit has various, such as image element circuit as shown in Figure 1, Including:Driving transistor M3, switching transistor M1, M2, M4, M5, M6 and M7, storage capacitance Cst and luminescent device OLED;Its In, when driving transistor M3 driven for emitting lights device OLED lights, driving current is by high level signal PVDD and data signal Vdata Current potential co- controlling, Ioled=k (PVDD-Vdata)2
As the change of the luminosity to its driving current of OLED is quite sensitive, and driving transistor M3 is in manufacturing process In cannot accomplish completely the same, and due to the reason such as change of temperature, meeting in manufacturing process and device aging, and the course of work Make the threshold voltage vt h of driving transistor M3 in each image element circuit there are inhomogeneities, which results in and flow through each picture The electric current of vegetarian refreshments OLED changes so that display brightness is uneven, so as to affect the display effect of whole image.Therefore, current Image element circuit in typically the threshold voltage vt h of driving transistor M3 can be compensated.
Although image can be improved after compensating to the threshold voltage of driving transistor M3 in current image element circuit Display effect, but, can there is life time decay in OLED in actual use, and the threshold value of the OLED for causing is electric Buckling, is not compensated to which at present, so, can be caused ghost (Image Sticking) phenomenon and be affected to show effect Really.
The content of the invention
The embodiment of the present invention provides a kind of compensation method of image element circuit, OLED display panel and its compensation method, to Solve the problems, such as in image element circuit because of OLED threshold voltage variation caused by OLED life time decay.
A kind of compensation method of image element circuit is embodiments provided, including:
According to interval duration set in advance, the anode potential of OLED in the image element circuit is gathered;
According to the anode potential of the OLED for collecting and it is loaded onto the negative electrode of OLED in the image element circuit Low level signal, determine OLED cross-pressure between the anode and cathode;
According to the cross-pressure determined, to being loaded onto the height electricity of the source/drain of driving transistor in the image element circuit Ordinary mail number is compensated.
The embodiment of the present invention additionally provides a kind of compensation method of OLED display panel, including:
According to interval duration set in advance, at least one picture of at least one of OLED display panel color is gathered The anode potential of OLED in plain circuit;
According to the anode potential of the OLED for collecting and it is loaded onto OLED in the image element circuit The low level signal of negative electrode, determines OLED cross-pressure between the anode and cathode;
According to the cross-pressure determined, to being loaded onto the source/drain of driving transistor in each image element circuit of this kind of color The high level signal of pole is compensated.
The embodiment of the present invention additionally provides a kind of OLED display panel, including:Multiple image element circuits being arranged in array, with And the control chip being connected with each image element circuit by holding wire;Wherein,
The control chip, for according to interval duration set in advance, gathering at least one picture of at least one color The anode potential of OLED in plain circuit;According to the anode potential of the OLED for collecting and it is loaded onto the pixel electricity The low level signal of the negative electrode of OLED in road, determines OLED cross-pressure between the anode and cathode;According to true The cross-pressure made, to being loaded onto the high level signal of the source/drain of driving transistor in each image element circuit of this kind of color Compensate.
The present invention has the beneficial effect that:
A kind of compensation method of image element circuit provided in an embodiment of the present invention, OLED display panel and its compensation method, lead to The anode potential of OLED at least one of collection OLED display panel at least one image element circuit of color is crossed, is determined OLED cross-pressure between the anode and cathode, with to being loaded onto driving transistor in each image element circuit of this kind of color The high level signal of source/drain is compensated.Due in use with the decay of OELD devices, the electric current of OLED Can increase, the cross-pressure of the OLED caused because of the life time decay of OLED is changed, compensate to being loaded into and drive this kind of face In the high level signal of the source/drain of each driving transistor of the OLED of color, ghost phenomena is improved with this.
Description of the drawings
Fig. 1 is the structural representation of image element circuit of the prior art;
Fig. 2 is the flow chart of the compensation method of image element circuit provided in an embodiment of the present invention;
Fig. 3 is the flow chart of the compensation method of OLED display panel provided in an embodiment of the present invention;
Fig. 4 is the structural representation of OLED display panel provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, to image element circuit provided in an embodiment of the present invention compensation method, OLED display panel and its The specific embodiment of compensation method is described in detail.
A kind of compensation method of image element circuit is embodiments provided, as shown in Fig. 2 comprising the following steps:
S201, the anode potential for according to interval duration set in advance, gathering OLED in image element circuit, that is, gather such as The potential vt of the A points in the image element circuit shown in Fig. 1;In the specific implementation, can individually increase by one in image element circuit to adopt Collection holding wire carries out potential acquisition;
S202, according to the anode potential of OLED for collecting and in being loaded onto image element circuit OLED negative electrode Low level signal, determine OLED cross-pressure between the anode and cathode;The anode electricity of the OLED that will be collected Difference Vt-PVEE of position Vt and low level signal PVEE, used as OLED cross-pressure Voled between the anode and cathode;
The cross-pressure that S203, basis are determined, the high level to being loaded onto the source/drain of driving transistor in image element circuit are believed Number compensate.
Specifically, the embodiment of the present invention is provided in the compensation method of above-mentioned image element circuit, during image element circuit use With the decay of OELD devices, the electric current of OLED can increase, the OLED that will cause because of the life time decay of OLED Cross-pressure change, compensate to be loaded into drive OLED driving transistor source/drain high level signal in, changed with this Kind ghost phenomena.
In the specific implementation, collection can be formulated and is compensated according to the rate of decay of the OLED in image element circuit and be updated Frequency, specifically, step S201 in the compensation method of above-mentioned image element circuit provided in an embodiment of the present invention is according to advance The interval duration of setting, gathers the anode potential of OLED in image element circuit, specifically can be being realized using the following two kinds mode:
First kind of way:Between every frame display time, the anode potential of OLED in image element circuit is gathered, i.e., per frame Anode potential is gathered within time period between the display time, and the compensation to high level signal is adjusted according to anode potential afterwards Value, to show that to next frame the OLED of time is compensated.The advantage of this kind of mode be can with real-Time Compensation due to The OLED current change that the decay of OLED is produced, but processing speed and Capability Requirement for control chip are higher, no Beneficial to reduction power consumption.
The second way:At interval of the anode electricity between the setting frame display time, gathering OLED in image element circuit Position, i.e., the anode potential offset value calculation of non real-time collection OLED, but certain interval of time is acquired and updates compensation Value.This kind of mode decays more in OLED, and slowly situation is more suitable for, and advantageously reduces power consumption.
In the specific implementation, the step S203 root in the compensation method of above-mentioned image element circuit provided in an embodiment of the present invention According to the cross-pressure determined, the high level signal to being loaded onto the source/drain of driving transistor in image element circuit is compensated, specifically Can realize in the following way:
High level signal after the cross-pressure that removing is determined is loaded onto the source/drain of driving transistor in image element circuit. Now the driving current of OLED is changed into Ioled=k (PVDD-Voled-Vdata)2, so, with the decay of OELD devices, The electric current of OLED can increase, and compensate the cross-pressure change of the OLED caused because of the life time decay of OLED with this, can To improve ghost phenomena.
Above-mentioned compensation method provided in an embodiment of the present invention is compensated for an image element circuit, and for by showing The OLED display panel of multiple image element circuit compositions of different colours, based on same inventive concept, the embodiment of the present invention is also provided For the compensation method of OLED display panel.
Specifically, the compensation method of a kind of OLED display panel provided in an embodiment of the present invention, as shown in figure 3, including with Lower step:
S301, according to interval duration set in advance, gather at least one of at least one of OLED display panel color The anode potential of OLED in image element circuit;
S302, according to the anode potential of OLED for collecting and in being loaded onto image element circuit OLED negative electrode Low level signal, determine OLED cross-pressure between the anode and cathode;
The cross-pressure that S303, basis are determined, to being loaded onto the source/drain of driving transistor in each image element circuit of this kind of color The high level signal of pole is compensated.
Specifically, in the compensation method of above-mentioned OLED display panel provided in an embodiment of the present invention, in OLED display panel With the decay of OELD devices during use, the electric current of OLED can increase, and will cause because of the life time decay of OLED OLED cross-pressure change, compensate to the source/drain of each driving transistor for being loaded into the OLED for driving this kind of color In the high level signal of pole, ghost phenomena is improved with this.
In the specific implementation, can be formulated according to the rate of decay of the OLED in the image element circuit of display floater and be gathered The frequency updated with compensation, specifically, the step in the compensation method of above-mentioned OLED display panel provided in an embodiment of the present invention Rapid S301 gathers at least one image element circuit of at least one of OLED display panel color according to interval duration set in advance The anode potential of middle OLED, specifically can be realized by the following two kinds mode:
First kind of way:Between every frame display time, at least the one of at least one of OLED display panel color is gathered The anode potential of OLED in individual image element circuit, i.e., gather anode potential within the time period between every frame display time, High level signal is compensated according to cross-pressure afterwards, to show that to next frame the OLED of time is compensated.This kind of side The advantage of formula is the OLED current change that can be produced due to the decay of OLED with real-Time Compensation, but for control chip Processing speed and Capability Requirement it is higher, be unfavorable for reduce power consumption.
The second way:At interval of between the setting frame display time, at least one of OLED display panel color is gathered At least one image element circuit in OLED anode potential, i.e., the anode potential of non real-time collection OLED simultaneously calculates compensation Value, but certain interval of time is acquired and updates offset.This kind of mode is in the more slow situation of OLED decay More it is suitable for, and advantageously reduces power consumption.
In the specific implementation, as the rate of decay of the OLED of different colours is different, can be for different colours OLED is compensated respectively, specifically, in the compensation method of above-mentioned OLED display panel provided in an embodiment of the present invention The step of S301 according to interval duration set in advance, gather at least one pixel of at least one of OLED display panel color The anode potential of OLED in circuit, specifically can be being realized using the following two kinds mode:
First kind of way:According to interval duration set in advance, life-span worst color only in collection OLED display panel The anode potential of OLED at least one image element circuit, so, compensates only for the image element circuit of life-span worst color.Example Such as, at present in the OLED of the shades of colour used in OLED display panel, the life-span of Blue OLED device is worst, i.e. the longevity Life decay is most fast, therefore, it can the sun of OLED at least one image element circuit for only gather blueness in OLED display panel Electrode potential.
The second way:According to interval duration set in advance, while red in gathering OLED display panel, green and indigo plant The anode potential of OLED at least one image element circuit of color, so can mend to the image element circuit of all colours Repay.
In the specific implementation, the anode electricity in above-mentioned steps S301 for OLED in the image element circuit of same color The collection number of position and collection position no requirement (NR), for example, only can gather positioned at the same of four edges of OLED display panel The anode potential of the OLED in colored pixels circuit, and for example only can also gather positioned at the same of OLED display panel middle The anode potential of the OLED in one colored pixels circuit, here are not limited.Also, it is electric when same colored pixels are collected During the anode potential of the multiple OLEDs in road, for the ease of follow-up offset value calculation, the equal of multiple anode potentials can be taken The offset corresponding to each image element circuit of this kind of color is calculated after value, it is also possible to take average respectively after offset value calculation, here is not Limit.
In the specific implementation, the step in the compensation method of above-mentioned OLED display panel provided in an embodiment of the present invention S303 is carried out according to the cross-pressure determined, the high level signal to being loaded onto driving transistor in each image element circuit of this kind of color Compensation, specifically can be realized in the following way:
It is loaded onto after the current potential of high level signal is removed the cross-pressure determined in each image element circuit of this kind of color and drives The source/drain of transistor.In the specific implementation, need to arrange the image element circuit of different colours different high level letters respectively Number, after compensating, the driving current of the OLED of each color is changed into Ioled=k (PVDD-Voled-Vdata)2, so, With the decay of OELD devices, the electric current of OLED can increase, and be compensated because the life time decay of OLED causes with this The cross-pressure change of OLED, can improve ghost phenomena.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of OLED display panel, as shown in figure 4, including: Multiple image element circuits being arranged in array, and the control chip being connected with each image element circuit by holding wire (do not shown in figure Go out);Wherein,
Control chip, for according to interval duration set in advance, gathering at least one pixel electricity of at least one color The anode potential of OLED in road;According to the anode potential of the OLED for collecting and it is loaded onto OLED in image element circuit The low level signal of the negative electrode of device, determines OLED cross-pressure between the anode and cathode;It is according to the cross-pressure determined, right The high level signal for being loaded onto the source/drain of driving transistor in each image element circuit of this kind of color is compensated.
In the specific implementation, in above-mentioned OLED display panel provided in an embodiment of the present invention, as shown in figure 4, pixel is electric Road specifically includes:Red pixel circuit R, green pixel circuit G and blue pixel circuit B;
Holding wire includes:It is connected with each red pixel circuit R, each green pixel circuit G and each blue pixel circuit B simultaneously Low level signal line VEE, the first high level signal line VDD1 being connected with each red pixel circuit R, with each green pixel electricity The second high level signal line VDD2, the 3rd high level signal line VDD3 being connected with each blue pixel circuit B of road G connections;
Holding wire also includes one below or combination:The first collection signal being connected with least one red pixel circuit R Line 01, the second collection holding wire 02 being connected with least one green pixel circuit G, is connected with least one blue pixel circuit B The 3rd collection holding wire 03 for connecing;
Control chip is with the pin connected one to one with each holding wire.
In the specific implementation, in above-mentioned OLED display panel provided in an embodiment of the present invention, the pattern of each holding wire can To be arranged in same metal level, i.e., the first collection collection of holding wire 01, second holding wire 02 and the 3rd gathers holding wire 03 Believe with the first high level signal line VDD1, the second high level signal line VDD2, the 3rd high level signal line VDD3 and low level Number line VEE is made using same metal level, so can not increase new film layer making work when OLED display panel makes Skill step, is only to complete to gather on the basis of the original film pattern of change and compensate, to improve ghost phenomena.
The compensation method of above-mentioned image element circuit provided in an embodiment of the present invention, OLED display panel and its compensation method, lead to The anode potential of OLED at least one of collection OLED display panel at least one image element circuit of color is crossed, is determined OLED cross-pressure between the anode and cathode, with to being loaded onto driving transistor in each image element circuit of this kind of color The high level signal of source/drain is compensated.Due in use with the decay of OELD devices, the electric current of OLED Can increase, the cross-pressure of the OLED caused because of the life time decay of OLED is changed, compensate to being loaded into and drive this kind of face In the high level signal of the source/drain of each driving transistor of the OLED of color, ghost phenomena is improved with this.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising these changes and modification.

Claims (11)

1. a kind of compensation method of image element circuit, including:
According to interval duration set in advance, the anode potential of OLED in the image element circuit is gathered;
According to the anode potential of the OLED for collecting and it is loaded onto the low of the negative electrode of OLED in the image element circuit Level signal, determines OLED cross-pressure between the anode and cathode;
According to the cross-pressure determined, the high level to being loaded onto the source/drain of driving transistor in the image element circuit is believed Number compensate.
2. compensation method as claimed in claim 1, it is characterised in that described according to interval duration set in advance, gathers institute The anode potential of OLED in image element circuit is stated, is specifically included:
Between every frame display time, the anode potential of OLED in the image element circuit is gathered;Or,
At interval of the anode potential between the setting frame display time, gathering OLED in the image element circuit.
3. compensation method as claimed in claim 1 or 2, it is characterised in that the cross-pressure that the basis is determined, to loading Into the image element circuit, the high level signal of the source/drain of driving transistor is compensated, and is specifically included:
The high level signal after the cross-pressure that removing is determined is loaded onto driving transistor in the image element circuit Source/drain.
4. a kind of compensation method of OLED display panel, it is characterised in that include:
According to interval duration set in advance, at least one pixel electricity of at least one of OLED display panel color is gathered The anode potential of OLED in road;
According to the anode potential of the OLED for collecting and it is loaded onto the negative electrode of OLED in the image element circuit Low level signal, determine OLED cross-pressure between the anode and cathode;
According to the cross-pressure determined, to being loaded onto the source/drain of driving transistor in each image element circuit of this kind of color High level signal is compensated.
5. compensation method as claimed in claim 4, it is characterised in that described according to interval duration set in advance, gathers institute The anode potential of OLED at least one image element circuit of at least one of OLED display panel color is stated, is specifically included:
Between every frame display time, gather at least one of the OLED display panel at least one image element circuit of color The anode potential of OLED;Or,
At interval of between the setting frame display time, at least one picture of at least one of OLED display panel color is gathered The anode potential of OLED in plain circuit.
6. compensation method as claimed in claim 4, it is characterised in that described according to interval duration set in advance, gathers institute The anode potential of OLED at least one image element circuit of at least one of OLED display panel color is stated, is specifically included:
According to interval duration set in advance, at least one pixel of life-span worst color in the OLED display panel is only gathered The anode potential of OLED in circuit;Or,
According to interval duration set in advance, while gathering at least the one of redness in the OLED display panel, green and blueness The anode potential of OLED in individual image element circuit.
7. compensation method as claimed in claim 6, it is characterised in that according to interval duration set in advance, only gather described In OLED display panel at least one image element circuit of life-span worst color OLED anode potential, specifically include:
According to interval duration set in advance, only gather at least one image element circuit of blueness in the OLED display panel The anode potential of OLED.
8. the compensation method as described in any one of claim 4-7, it is characterised in that the cross-pressure that the basis is determined, High level signal to being loaded onto driving transistor in each image element circuit of this kind of color is compensated, and is specifically included:
It is loaded onto in each image element circuit of this kind of color after the voltage of the high level signal is removed the cross-pressure determined The source/drain of driving transistor.
9. a kind of OLED display panel, it is characterised in that include:Multiple image element circuits being arranged in array, and pass through signal The control chip that line is connected with each image element circuit;Wherein,
The control chip, for according to interval duration set in advance, gathering at least one pixel electricity of at least one color The anode potential of OLED in road;According to the anode potential of the OLED for collecting and it is loaded onto in the image element circuit The low level signal of the negative electrode of OLED, determines OLED cross-pressure between the anode and cathode;According to determining The cross-pressure, the high level signal to being loaded onto the source/drain of driving transistor in each image element circuit of this kind of color carries out Compensation.
10. OLED display panel as claimed in claim 9, it is characterised in that the image element circuit includes:Red pixel electricity Road, green pixel circuit and blue pixel circuit;
The holding wire includes:Simultaneously with each red pixel circuit, each green pixel circuit and each blue picture The low level signal line of plain circuit connection, the first high level signal line being connected with each red pixel circuit are described with each Second high level signal line of green pixel circuit connection, the 3rd high level signal being connected with each blue pixel circuit Line;
The holding wire also includes one below or combination:The first collection letter being connected with red pixel circuit described at least one Number line, the second collection holding wire being connected with green pixel circuit described at least one, with blue pixel electricity described at least one 3rd collection holding wire of road connection;
The control chip is with the pin connected one to one with each holding wire.
11. OLED display panels as claimed in claim 10, it is characterised in that the pattern of each holding wire is arranged at together In one metal level.
CN201611162973.0A 2016-12-15 2016-12-15 Pixel circuit compensation method, OLED display panel and compensation method thereof Pending CN106531083A (en)

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CN106935193A (en) * 2017-05-12 2017-07-07 京东方科技集团股份有限公司 OLED drives compensation circuit, OLED display panel and its driving method
CN109599069A (en) * 2017-09-30 2019-04-09 北京小米移动软件有限公司 A kind of method and apparatus that image is shown

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Application publication date: 20170322