CN108399893A - A kind of pixel compensation circuit, pixel compensation method and display device - Google Patents
A kind of pixel compensation circuit, pixel compensation method and display device Download PDFInfo
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- CN108399893A CN108399893A CN201810095747.8A CN201810095747A CN108399893A CN 108399893 A CN108399893 A CN 108399893A CN 201810095747 A CN201810095747 A CN 201810095747A CN 108399893 A CN108399893 A CN 108399893A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- 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]
- G09G3/3266—Details of drivers for scan electrodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- Engineering & Computer Science (AREA)
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
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Abstract
The present invention provides a kind of pixel compensation circuit, pixel compensation method and display devices, wherein pixel compensation circuit includes：The control terminal of driving switch and the first end of first switch connect, and first end is connect with the first power supply, the second end connection of second end and first switch；The control terminal of first switch is connect with scanning signal end；The control terminal of second switch is connect with reset signal end, and the second end connection of first end and driving switch, second end is connect with data signal end；The first end of first capacitance is connect with the first power supply, the control terminal connection of second end and driving switch；The first end of second capacitance and the first end of second switch connect, and the second end of second end and second switch connects；The first end of luminescence component and the second end of driving switch connect, and second end is connect with second source.By the way that reset signal end and scanning signal end connection type is arranged, avoids threshold voltage shift and cause the electric current for flowing through luminescence component unstable, improve the homogeneity of display.
Description
Technical field
The present invention relates to organic light-emitting diode display fields, and in particular to a kind of pixel compensation circuit, pixel compensation side
Method and display device.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode, be abbreviated as OLED) display is according to driving
Mode can be divided into passive-matrix driving Organic Light Emitting Diode (Passive Matrix OLED, be abbreviated as PMOLED) display
With active matrix drive Organic Light Emitting Diode (Active Matrix OLED, be abbreviated as AMOLED) display.Wherein,
PMOLED displays, do not shine when data are not written, shine in data address period, this type of drive is simple in structure,
Cost is relatively low, is easy design, is primarily adapted for use in the display of small-medium size.Displayer, each picture of the pel array
Element has a capacitance to store data, allows each pixel to be kept at luminance, since the power consumption of displayer is apparent
Less than PMOLED displays, in addition type of drive is more suitable for developing large scale and high-definition display so that AMOLED is aobvious
Show that device becomes the Main way of future development.However, with the increase of panel clarity, the fabric swatch space of displayer will
A large amount of pixel region is occupied because of the needs of pixel driver compensation circuit, this can not only compress provided OLED areas, and
And it can also influence the service life of display.Further, since the influence of processing procedure, the threshold value electricity of the thin film transistor (TFT) in each pixel
Pressure also will appear different degrees of drift so that the display homogeneity of display is poor.
Invention content
Therefore, a kind of pixel compensation circuit of present invention offer, pixel compensation method and display device, to solve the prior art
Middle display shows the defect of homogeneity difference.
First aspect present invention provides a kind of pixel compensation circuit, including：Driving switch, first switch, second switch,
First capacitance, the second capacitance and luminescence component, wherein
The control terminal of the driving switch is connect with the first end of the first switch, the first end of the driving switch with
First power supply connects, and the second end of the driving switch is connect with the second end of the first switch；
The control terminal of the first switch is connect with scanning signal end；
The control terminal of the second switch is connect with reset signal end, and the first end of the second switch is opened with the driving
The second end of pass connects, and the second end of the second switch is connect with data signal end；
The first end of first capacitance is connect with first power supply, second end and the driving of first capacitance
The control terminal of switch connects；
The first end of second capacitance is connect with the first end of the second switch, the second end of second capacitance with
The second end of the second switch connects；
The first end of the luminescence component is connect with the second end of the driving switch, the second end of the luminescence component with
Second source connects.
Optionally, the first switch is double-gated transistor.
Optionally, the driving switch is P-type transistor.
Optionally, the first switch is P-type transistor or N-type transistor；And/or the second switch is P-type crystal
Pipe or N-type transistor.
Second aspect of the present invention provides a kind of pixel compensation method, is applied to the pixel compensation circuit of above-mentioned first aspect,
Including first stage, second stage, phase III and fourth stage, wherein
The first stage is reseting stage, for being resetted to the driving switch, described in the control of scanning signal end
First switch is in the conduction state, and the reset signal end control second switch is in the conduction state, the high electricity of second source output
Flat, data signal end exports high level, and the high level of the data signal end output passes through the first switch and described second
Switch is sent to the control terminal of the driving switch, and the driving switch is off state；
The second stage is compensated stage, for carrying out valve value compensation, the scanning signal end to the driving switch
It is in the conduction state to control the first switch, the reset signal end controls the second switch and is off state, described
Second source exports high level, and the data signal end exports high level, and the driving switch is in diode-connected state,
The control terminal of the driving switch forms offset voltage；
The phase III is write phase, for carrying out data write-in, the scanning signal end to the driving switch
It is in the conduction state to control the first switch, the reset signal end controls the second switch and is off state, described
Second source exports low level, and the data signal end exports low level, and the output signal of the data signal end is described in
First switch and the second capacitance are sent to the second end of first capacitance, and write-in electricity is formed in the control terminal of the driving switch
Pressure；
The fourth stage is glow phase, and the scanning signal end controls the first switch and is off state, institute
It states the reset signal end control second switch and is off state, the second source exports low level, the data-signal
End output high level, the driving switch is in the conduction state, and the luminescence component flows through driving current, and the driving current is driven
The luminescence component is moved to shine.
Optionally, the first switch is double-gated transistor.
Optionally, the driving switch is P-type transistor；And/or the first switch is P-type transistor or N-type crystal
Pipe；And/or the second switch is P-type transistor or N-type transistor.
Optionally, when the first switch and the second switch are P-type transistor, within the first stage, institute
It is low level to state scanning signal end, and the reset signal end is low level, and the second source is high level, the data-signal
End is high level；
In the second stage, the scanning signal end is low level, and the reset signal end is high level, described the
Two power supplys are high level, and the data signal end is high level；
Within the phase III, the scanning signal end is low level, and the reset signal end is high level, described the
Two power supplys are low level, and the data signal end is low level；
In the fourth stage, the scanning signal end is high level, and the reset signal end is high level, described the
Two power supplys are low level, and the data signal end is high level.
Third aspect present invention provides a kind of display device, including any pixel compensation of first aspect present invention
Circuit.
Technical solution of the present invention has the following advantages that：
Pixel compensation circuit provided by the invention, including：Driving switch, first switch, second switch, the first capacitance,
Two capacitances and luminescence component, wherein the control terminal of the driving switch is connect with the first end of the first switch, the driving switch
First end connect with the first power supply, the second end of the driving switch is connect with the second end of the first switch；The first switch
Control terminal connect with scanning signal end；The control terminal of the second switch is connect with reset signal end, and the first of the second switch
End is connect with the second end of the driving switch, and the second end of the second switch is connect with data signal end；The of first capacitance
One end is connect with first power supply, and the second end of first capacitance is connect with the control terminal of the driving switch；Second capacitance
First end is connect with the first end of the second switch, and the second end of second capacitance is connect with the second end of the second switch；It should
The first end of luminescence component is connect with the second end of the driving switch, and the second end of the luminescence component is connect with second source.It is logical
The connection type that setting reset signal end is connect with scanning signal end is crossed, first the control terminal of driving switch is formed in compensated stage
Valve value compensation voltage is used to compensate the threshold voltage of driving switch so that driving current and threshold voltage in glow phase later
It is unrelated, it avoids the drift of pixel compensation circuit threshold voltage and causes the electric current for flowing through luminescence component unstable, improve display
Homogeneity.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of a specific example of pixel compensation circuit in the embodiment of the present invention；
Fig. 2 is the oscillogram of a specific example of pixel compensation circuit in the embodiment of the present invention；
Fig. 3 is the simulation result diagram of a specific example of pixel compensation circuit in the embodiment of the present invention.
Reference numeral：
M1- driving switch；M2- first switches；M3- second switches；The first capacitances of Cst-；The second capacitances of Ccp-；D- shines
Component；The first power supplys of VDD-；VSS- second sources；SCAN- scanning signals end；Reset- reset signals end；Data- data-signals
End.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements, can be wirelessly connected, can also be wired connection.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other at conflict.
The present embodiment provides a kind of pixel compensation circuits, as shown in Figure 1, including：Driving switch M1, first switch M2,
Two switch M3, the first capacitance Cst, the second capacitance Ccp and luminescence component D, wherein
The control terminal of driving switch M1 is connect with the first end of first switch M2, the first end of driving switch M1 and the first electricity
The second end of source VDD connections, driving switch M1 is connect with the second end of first switch M2；
The control terminal of first switch M2 is connect with scanning signal end SCAN；
The control terminal of second switch M3 is connect with reset signal end Reset, the first end and driving switch of second switch M3
The second end of M1 connects, and the second end of second switch M3 is connect with data signal end Data；
The first end of first capacitance Cst is connect with the first power vd D, second end and the driving switch M1 of the first capacitance Cst
Control terminal connection；
The first end of second capacitance Ccp is connect with the first end of second switch M3, the second end and second of the second capacitance Ccp
The second end of switch M3 connects；
The first end of luminescence component D is connect with the second end of driving switch M1, the second end and second source of luminescence component D
VSS connections.
In the present embodiment, driving switch M1, first switch M2 and second switch M3 are P-type transistor, are only needed in this way
Prepare a type of transistor, it is possible to reduce the processing steps such as mask, photoetching, save production cost at simplification of flowsheet；When
So, in other embodiments, first switch M2 can also be N-type transistor or second switch M3 can also be N-type transistor, root
According to needs rationally setting.It is brilliant that the control terminal of driving switch M1, first switch M2 and second switch M3 correspond to each p-type respectively
The grid of body pipe.
In the present embodiment, in order to reduce the leakage current of first switch M2 and reduce the area of pixel compensation circuit, the
One switch M2 is set as double-gated transistor, and certainly, in other embodiments, first switch M2 can also be normal transistor；It drives
Dynamic switch M1 and second switch M3 can also be arranged to double-gated transistor, and setting in this way can increase the area of pixel compensation circuit,
Rationally setting as needed.
The operation principle of above-mentioned pixel compensation circuit, i.e. pixel compensation method, including first stage, second stage, third
Stage and fourth stage.Fig. 2 is the oscillogram of pixel compensation circuit of the embodiment of the present invention；Fig. 3 is pixel of the embodiment of the present invention
The simulation result diagram of compensation circuit.
In the present embodiment, driving switch M1, first switch M2 and second switch M3 are P-type transistor, pixel compensation
The course of work of circuit is as follows：
As shown in figure 3, in the present embodiment, the supply voltage value of selected P-type transistor is 4.6V, according to transistor
Type and characteristic (pressure resistance, resistant to flow) determine simulation parameter：The height of scanning signal end SCAN and reset signal end Reset outputs
Level is 7V, and low level is -7V；The high level of second source VSS outputs is 4.6V, and low level is -3V；Data signal end
The high level of Data outputs is 3V, low level 0V；Certainly, in other embodiments, according to the class of selected P-type transistor
Type rationally determines the output valve of each signal, when such as the supply voltage of selected P-type transistor is 3.3V, scanning signal end
The high level of SCAN and reset signal end Reset outputs is 5V, and low level is -5V；The high level of second source VSS output is
3.3V, low level are -1V；The high level of data signal end Data outputs is 2V, low level 0V.
First stage T1 is reseting stage, for being resetted to driving switch M1；In in the first stage, scanning signal end
SCAN is low level, and it is in the conduction state that scanning signal end SCAN controls first switch M2；Reset signal end Reset is low electricity
Flat, it is in the conduction state that reset signal end Reset controls second switch M3；Second source VSS exports high level；Data signal end
Data exports high level, and the high level size of data signal end Data outputs is Voffset, VoffsetPass through first switch M2 and
Two switch M3 are transmitted to the control terminal of driving switch M1, and driving switch M1 is off state, the control terminal electricity of driving switch M1
Pressure value is Voffset.In other embodiments, when in pixel compensation circuit first switch M2 and second switch M3 be N-type crystal
The Continuity signal of Guan Shi, switch are high level, and cut-off signals are low level, and circuit logic is identical, can be rationally arranged as needed.
Second stage T2 is compensated stage, for carrying out valve value compensation to driving switch M1；In second stage, scanning letter
Number end SCAN is low level, and it is in the conduction state that scanning signal end SCAN controls first switch M2；Reset signal end Reset is height
Level, reset signal end Reset controls second switch M3 are off state；Second source VSS exports high level；Data-signal
Hold Data output high level Voffset, driving switch pipe M1 is in diode-connected state, formed in the control terminal of driving switch M1
Offset voltage, according to the characteristic of P-type transistor it is found that the control terminal voltage value of the driving switch M1 in diode-connected state
The voltage value V of first end than driving switch M1DD(the output voltage values V of the first power vd DDD, VDDFor the electricity of P-type transistor
Source voltage value 4.6V) a low threshold voltage Vth, i.e. the control terminal voltage value of driving switch M1 is VDD+Vth, wherein VthTo drive
The threshold voltage of dynamic switch M1.In the present embodiment, the output voltage values V of the first power vd DDDFor 4.6V, certainly, in other realities
It applies in example, VDDMay be other values, such as 3.3V is rationally arranged according to selected P-type transistor.
Phase III T3 is write phase, for carrying out data write-in to driving switch M1；Within the phase III, scanning letter
Number end SCAN is low level, and it is in the conduction state that scanning signal end SCAN controls first switch M2；Reset signal end Reset is height
Level, reset signal end Reset controls second switch M3 are off state；Second source VSS exports low level；Data-signal
Data is held to export low level, the low level size of data signal end Data outputs is Vdata, the output letter of data signal end Data
Number by VoffsetBecome Vdata, the characteristic that cannot be mutated according to capacitance voltage difference of the two ends is it is found that the second end of the second capacitance Ccp is electric
Pressure reduction amount is Voffset-Vdata, therefore the first end voltage degradation of the second capacitance Ccp is also Voffset-Vdata, first open at this time
It is in the conduction state to close M2, so that the voltage degradation of the first capacitance Cst second ends is Voffset-Vdata, in driving switch
The control terminal of M1 forms write-in voltage, and the control terminal voltage value of driving switch M1 is VDD+Vth+Vdata-Voffset, wherein VDDFor
4.6V, VoffsetFor 3V, VdataFor 0V.
Fourth stage T4 is glow phase, and in fourth stage, scanning signal end SCAN is high level, scanning signal end
SCAN controls first switch M2 is off state；Reset signal end Reset is high level, reset signal end Reset controls the
Two switch M3 are off state；Second source VSS exports low level；Data signal end Data is level Voffset；Driving switch
The control terminal voltage of M1 is Vg=VDD+Vth+Vdata-Voffset, the voltage of the first end of driving switch M1 is Vs=VDD, Vgs=Vg-
Vs=VDD+Vth+Vdata-Voffset-VDD=Vth+Vdata-Voffset<0 and | Vgs|>|Vth|, meet driving switch M1 (P-type crystals
Pipe) turn-on condition, therefore driving switch M1 is in the conduction state, and luminescence component D flows through driving current, and driving current driving shines
Component D shines；Driving current size is：
I_oled=k (Vgs-Vth)2=k (VDD+Vth+Vdata-Voffset-VDD-Vth)2=k (Vdata-Voffset)2,
Wherein,μpFor hole mobility；CoxFor the capacitance of unit area；It is opened for driving
Close the breadth length ratio of M1.VDD、VdataAnd VoffsetValue be respectively 4.6V, 0V and 3V.
By above-mentioned driving current formula it is found that the threshold voltage V of the size and driving switch M1 of driving currentthIt is unrelated, into
And so that the driving current for flowing through luminescence component is stablized, therefore the pixel compensation circuit realizes Vth compensation functions.It is multiple by being arranged
The connection type that is connect with scanning signal end of position signal end, avoid pixel compensation circuit threshold voltage drift about cause to flow through it is luminous
The driving current of component is unstable, improves the homogeneity of display；And driving current is unrelated with supply voltage, avoids power supply
Interference, further increase the uniformity coefficient of display；Device count is less needed for simultaneously, reduces the face of single pixel circuit
Product, thus suitable for the screen body of high PPI.
The present embodiment also provides a kind of display device, including above-mentioned pixel compensation circuit.If the display device generally comprises
Dry pixel compensation circuit, since the area needed for single pixel circuit is small, and the size of driving current and threshold voltage VthNothing
It closes, therefore, display device also has the advantages that small, display homogeneity is good.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. a kind of pixel compensation circuit, which is characterized in that including：Driving switch (M1), first switch (M2), second switch
(M3), the first capacitance (Cst), the second capacitance (Ccp) and luminescence component (D), wherein
The control terminal of the driving switch (M1) is connect with the first end of the first switch (M2), the driving switch (M1)
First end is connect with the first power supply (VDD), the second end of the second end and the first switch (M2) of the driving switch (M1)
Connection；
The control terminal of the first switch (M2) is connect with scanning signal end (SCAN)；
The control terminal of the second switch (M3) is connect with reset signal end (Reset), the first end of the second switch (M3)
It is connect with the second end of the driving switch (M1), second end and the data signal end (Data) of the second switch (M3) connect
It connects；
The first end of first capacitance (Cst) is connect with first power supply (VDD), and the second of first capacitance (Cst)
End is connect with the control terminal of the driving switch (M1)；
The first end of second capacitance (Ccp) is connect with the first end of the second switch (M3), second capacitance (Ccp)
Second end connect with the second end of the second switch (M3)；
The first end of the luminescence component (D) is connect with the second end of the driving switch (M1), and the of the luminescence component (D)
Two ends are connect with second source (VSS).
2. pixel compensation circuit according to claim 1, which is characterized in that the first switch (M2) is double grid crystal
Pipe.
3. pixel compensation circuit according to claim 1 or 2, which is characterized in that the driving switch (M1) is P-type crystal
Pipe.
4. pixel compensation circuit according to claim 3, which is characterized in that the first switch (M2) is P-type transistor
Or N-type transistor；And/or
The second switch (M3) is P-type transistor or N-type transistor.
5. a kind of pixel compensation method is applied to any pixel compensation circuit in Claims 1-4, which is characterized in that
Including first stage, second stage, phase III and fourth stage, wherein
The first stage is reseting stage, for being resetted to the driving switch (M1), scanning signal end (SCAN) control
It is in the conduction state to make the first switch (M2), reset signal end (Reset) controls the second switch (M3) and be on
State, second source (VSS) export high level, and data signal end (Data) exports high level, the data signal end (Data)
The high level of output is sent to the control of the driving switch (M1) by the first switch (M2) and the second switch (M3)
End processed, the driving switch (M1) are off state；
The second stage is compensated stage, for carrying out valve value compensation, the scanning signal end to the driving switch (M1)
(SCAN) it is in the conduction state to control the first switch (M2), reset signal end (Reset) control second switch
(M3) it is off state, the second source (VSS) exports high level, and the data signal end (Data) exports high level,
The driving switch (M1) is in diode-connected state, and offset voltage is formed in the control terminal of the driving switch (M1)；
The phase III is write phase, for carrying out data write-in, the scanning signal end to the driving switch (M1)
(SCAN) it is in the conduction state to control the first switch (M2), reset signal end (Reset) control second switch
(M3) it is off state, the second source (VSS) exports low level, and the data signal end (Data) exports low level,
The output signal of the data signal end (Data) is sent to described by the first switch (M2) and the second capacitance (Ccp)
The second end of one capacitance (Cst) forms write-in voltage in the control terminal of the driving switch (M1)；
The fourth stage is glow phase, and the scanning signal end (SCAN) controls the first switch (M2) and is off shape
State, the reset signal end (Reset) control the second switch (M3) and are off state, and the second source (VSS) is defeated
Go out low level, the data signal end (Data) exports high level, and the driving switch (M1) is in the conduction state, described to shine
Component (D) flows through driving current, and the driving current drives the luminescence component (D) to shine.
6. pixel compensation method according to claim 5, which is characterized in that the first switch (M2) is double grid crystal
Pipe.
7. pixel compensation method according to claim 5 or 6, which is characterized in that the driving switch (M1) is P-type crystal
Pipe；And/or
The first switch (M2) is P-type transistor or N-type transistor；And/or
The second switch (M3) is P-type transistor or N-type transistor.
8. pixel compensation method according to claim 7, which is characterized in that when the first switch (M2) and described second
When switch (M3) is P-type transistor,
Within the first stage, the scanning signal end (SCAN) is low level, and the reset signal end (Reset) is low electricity
Flat, the second source (VSS) is high level, and the data signal end (Data) is high level；
In the second stage, the scanning signal end (SCAN) is low level, and the reset signal end (Reset) is high electricity
Flat, the second source (VSS) is high level, and the data signal end (Data) is high level；
Within the phase III, the scanning signal end (SCAN) is low level, and the reset signal end (Reset) is high electricity
Flat, the second source (VSS) is low level, and the data signal end (Data) is low level；
In the fourth stage, the scanning signal end (SCAN) is high level, and the reset signal end (Reset) is high electricity
Flat, the second source (VSS) is low level, and the data signal end (Data) is high level.
9. a kind of display device, which is characterized in that include the pixel compensation circuit as described in claim 1-4 is any.
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