CN209418106U - Pixel-driving circuit and display panel - Google Patents
Pixel-driving circuit and display panel Download PDFInfo
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- CN209418106U CN209418106U CN201920081283.5U CN201920081283U CN209418106U CN 209418106 U CN209418106 U CN 209418106U CN 201920081283 U CN201920081283 U CN 201920081283U CN 209418106 U CN209418106 U CN 209418106U
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Abstract
This application discloses a kind of pixel-driving circuit and display panels.Pixel-driving circuit includes: the first output control module, for generating first switch signal；First output module, for exporting the first driving signal according to first switch signal；Second output control module, for generating second switch signal；Third output control module, for generating third switching signal；Second output module, for exporting the second driving signal according to second switch signal or third switching signal；The first driving signal of output or the second driving signal that first output module and the second output module select one are to drive pixel circuit.The pixel-driving circuit and display panel of the application, increase an output low potential control module, the stage of low-potential signal is in there are two having during each frame image-driven is shown according to corresponding timing control, wherein, the reset phase of respective pixel circuit drives inputs low-potential signal, reduces the power consumption of circuit.
Description
Technical field
This application involves field of display technology, especially a kind of pixel-driving circuit and display panel.
Background technique
With the development of optical technology and semiconductor technology, using liquid crystal display and organic light emitting diode display as generation
The flat-panel monitor of watch has the characteristics that frivolous, low energy consumption, reaction speed is fast, excitation purity is good and contrast is high, leads in display
Domain occupies leading position.
In the design of current panel driving, different scanning signals needs cabling respectively in pixel-driving circuit, thus needs
Want GOA (Gate Driver on Array, array substrate gate driving circuit) and EOA (Emission circuit on
Array, array substrate illuminating circuit) two kinds of frameworks provide different scanning signals.
Existing EOA circuit does not account for power consumption considerations in design process, cause driving circuit overall power compared with
It is high.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model needs
A kind of pixel-driving circuit and driving panel are provided.
The pixel-driving circuit of the utility model embodiment, the first output control module, for according to the first of input
Input signal generates first switch signal；
First output module, for exporting the first driving signal according to the first switch signal；
Second output control module, for generating second switch signal according to the second input signal of input；
Third output control module, for generating third switching signal according to the third input signal of input；
Second output module, for being believed according to the second switch signal or the second driving of third switching signal output
Number；
First output module and second output module select one output first driving signal or described
Two driving signal drives the pixel circuit, the first driving letter to the pixel circuit connecting with the pixel-driving circuit
Number be high potential signal, second driving signal be low-potential signal；
In the first stage, second output module exports second driving signal, described, and the first stage is corresponding
Reset phase of the pixel circuit in the display driving of each frame image.
The display panel of the utility model embodiment, including pixel-driving circuit as described above.
The pixel-driving circuit and display panel of the utility model embodiment increase an output low potential control mould
Block, had during each frame image-driven is shown according to corresponding timing control there are two be in low-potential signal rank
Section, wherein the reset phase of respective pixel circuit drives inputs low-potential signal, reduces the power consumption of circuit.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
In description of the above-mentioned and/or additional aspect and advantage of the utility model from combination following accompanying drawings to embodiment
It will be apparent and be readily appreciated that, in which:
Fig. 1 is the module diagram of the display panel of the utility model embodiment.
Fig. 2 is the circuit diagram of the pixel-driving circuit of the utility model embodiment.
Fig. 3 is the timing diagram of the pixel-driving circuit of the utility model embodiment.
Fig. 4 is the schematic diagram of the pixel circuit of the utility model embodiment.
Specific embodiment
The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this
Novel limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ",
" second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technology
The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more
The feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific
It limits.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements or the interaction relationship of two elements.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relationship between setting.In addition, the example of various specific techniques and material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Referring to Fig. 1, the display panel 1000 of embodiment of the present invention, including pixel-driving circuit 100.Pixel driver electricity
Road 100 includes the first output control module 10, the first output module 20, the second output control module 30, third output control mould
Block 40 and the second output module 50.
First output control module 10 is that voltage pulls up control module, for generating the according to the first input signal of input
One switching signal, the first output module 20 are pull-up voltage output module, for according to the first driving of first switch signal output
Signal, the second output control module 30 and third output control module 40 are voltage pull-down control module, for according to input
The second input signal generate second switch signal, and third switching signal is generated according to the third input signal of input, the
Two output modules 50 are actuation voltage output module, for according to the second driving of second switch signal or the output of third switching signal
Signal.
Wherein, the first output module 20 and the second output module 50 select one the first driving signal of output or the second driving letter
Number to the pixel circuit that connect with pixel-driving circuit 100 to drive pixel circuit, the first driving signal is high potential signal, the
Two driving signal is low-potential signal.
In a drive cycle, voltage pulls up control module and voltage pull-down control module interior point of section in different times
Voltage output module and actuation voltage output module Kong Zhi not be pulled up, so that pixel-driving circuit is at least in drive cycle
Low-potential voltage is exported in one of them period.
Specifically, the output respective pixel circuit of pixel-driving circuit 100 in the first stage is in the display driving of each frame
Reset phase input, at this stage, the second output module 50 exports the second driving signal, i.e. low-potential signal.
The pixel-driving circuit 100 and display panel 1000 of embodiment of the present invention, including two low-potential signal outputs
Control module i.e. the second output control module 30 and third output control module 40, according to corresponding timing control in each frame figure
As having during driving display, there are two the stages for being in low-potential signal, wherein the resetting rank of respective pixel circuit drives
The first stage of section inputs low-potential signal, reduces the power consumption of circuit.
Referring to Fig. 2, in some embodiments, the first output control module 10 includes the first input signal cable ECLKn
With first switching element M1.The first end of first switching element M1 is connect with the first input signal cable ECLKn.First input signal
Line ECLKn generates first switch signal, first switch according to the first input signal that the driving chip of display panel 1000 inputs
Element M1 is opened when receiving first switch signal.
In such an embodiment, the first output module 20 includes second switch element M2 and signal output line EN, the
The first end of two switch element M2 is connect with the second end of first switching element M1, the second end and signal of second switch element M2
Output line EN connection, the third end connection high potential power end EVGH of second switch element M2 is to receive high-potential voltage, the
When one switch element M1 is opened, the first end of second switch element M2 is high potential, and second switch element M2 is opened, signal output
Line EN exports the first driving signal, that is to say high potential signal.
Specifically, signal output line EN that is to say the EOA scan control line of pixel circuit, and signal output line is for exporting height
Level signal or low level signal are to pixel circuit, to drive pixel circuit in different phase.The third of second switch element M2
End is connect with high potential power end EVGH, and the first output control module 10 is the output control module of a high potential signal, is led to
The opening and closing of first switching element M1 is crossed to control the opening and closing of second switch element M2.When receiving a high potential input signal,
That is when the first input signal cable ECLKn exports high potential signal, first switching element M1 is opened, and the first of second switch element M2
End is high potential, and second switch element M2 is opened, and high potential power end EVGH exports high potential signal, and EN exports high potential letter
Number.
In some embodiments, the first output module 20 further includes third switch element M3.Third switch element M3's
Third end is connect with the first end of second switch element M2, and the first end of third switch element M3 is connect with signal output line EN,
The second end of third switch element M3 connects high potential power end EVGH.When signal output line EN exports the first driving signal,
Third switch element M3 is opened.
Specifically, when EN exports high potential signal, the raised process of EN voltage is the first of third switch element M3
Hold the raised process of voltage, third switch element M3 open, third element M3 opening after, with third switch element M3 second
The high potential power end EVGH of end connection provides voltage for the first end of second switch M2, to guarantee second switch element M2's
Cut-in voltage is kept open M2, and the high potential power end EVGH connecting with the third end of second switch element M2 continues
For M2 power supply, guarantee the high potential output of EN.
In some embodiments, the second output control module 30 includes the 4th switch element M4 and the second input signal cable
Gn-2, the second input signal cable Gn-2 are connect with the first end of the 4th switch element M4, the second input signal cable Gn-2 according to
Second input signal of the GOA circuit input that pixel-driving circuit 100 connects generates second switch signal, the 4th switch element M4
It is opened when receiving second switch signal.
In such an embodiment, the second output module 50 includes the 6th switch element M6, the 6th switch element M6's
First end is connect with the third end of the 4th switch element M4, and the third end of the 6th switch element M6 is connect with output signal line EN,
The second end of 6th switch element M6 connects low potential power source end EVGL, when the 4th switch element M4 is opened, the 6th switch member
Part M6 is opened, and signal output line EN exports the second driving signal, that is to say low-potential signal.
Specifically, the second end of the 4th switch element M4 connects high potential power end EVGH, the second output control module 30
For the output control module of a low-potential signal, control the 6th switch element M6's by the opening and closing of the 4th switch element M4
Opening and closing.When receiving a high potential input signal, i.e. when the second input signal cable Gn-2 exports high potential signal, the 4th switch
Element M4 is opened, and high potential power end EVGH exports high potential signal, and the first end of the 6th switch element M6 is high potential, and the 6th
Switch element M6 is opened, and EN exports low-potential signal.
In some embodiments, third output control module 40 includes the 5th switch element M5, third input signal cable
Gn and the 4th input signal cable ECLKBn.The first end of 5th switch element M5 is connect with third input signal cable Gn, and the 5th opens
Close element M5 third end connect with the 4th input signal cable ECLKBn, third input signal by third input signal cable Gn according to
The signal and the 4th input signal cable ECLKBn for the GOA circuit input connecting with pixel-driving circuit 100 are according to display panel
The signal of 1000 driving chip input generates jointly, and the 5th switch element M5 is opened when receiving third switching signal.
In such an embodiment, the first end of the 6th switch element M6 also connects with the second end of the 5th switch element M5
It connects, when the 5th switch element M5 is opened, the 6th switch element M6 is opened, and signal output line EN exports the second driving signal.
Specifically, third output control module 40 is the output control module of a low-potential signal, passes through the 5th switch
Element M5's is opened and closed to control the opening and closing of the 6th switch element M6.When third input signal cable Gn inputs high potential signal, the
Five switch element M5 are opened, at this point, the 6th switch element M6 is closed if the 4th input signal cable ECLKBn exports low-potential signal
It closes, the first input line ECLKn exports high potential signal, and second switch element M2 is opened, and output signal line EN exports high potential letter
Number.If the 4th input signal cable ECLKBn exports high potential signal, at this point, the 6th switch element M6 is opened, output signal line EN
Export low-potential signal.
In some embodiments, third output control module 40 further includes the 7th switch element M7 and the 5th input signal
Line Gn+2, the first end of the 7th switch element M7 are connect with the 5th input signal cable Gn+2, the third end of the 7th switch element M7
It is connect with the first end of the 6th switch element M6.
Specifically, when the 5th input signal cable Gn+2 exports high potential signal, the 7th switch element M7 is opened, and the 6th opens
Element M6 is closed to close.At this point, the first input line ECLKn exports high potential signal, second switch element M2 is opened, output signal line
EN exports high potential signal.
In some embodiments, third output control module 40 further includes the 8th switch element M8, the 8th switch unit
The first end of M8 is connect with the first end of the 6th switch element M6, the second end of the 5th switch element M5 respectively, the 8th switch member
The third end of part M8 is connect with the second end of first switching element M1.
Specifically, the 8th switch element M8 and other switch elements, such as the 6th switch element M6 act synergistically, to guarantee
Pixel-driving circuit 100 exports unique output signal.For example, when the 4th switch element M4 is opened, the 6th switch element M6
It is opened with the 8th switch element M8, at this point, the grid of second switch element M2 is maintained at low potential by the 8th switch element M8, the
Two switch element M2 are closed, and signal output line EN exports low-potential signal.
Fig. 3 and Fig. 4 are please referred to, in some embodiments, two in a drive cycle are discontinuous and length is different
Period in, voltage pull-down control module 30 and voltage pull-down control module 40 control the output of actuation voltage output module 50
Low-potential voltage.Voltage pull-down control module 30 and voltage pull-down control module 40 include multiple and different switch elements, multiple
Switch element controls actuation voltage output module 50 respectively in the different time sections of a drive cycle and exports low-potential voltage.
Within the first stage of a drive cycle, it is low that voltage pull-down control module controls the output of actuation voltage output module
Potential voltage, first stage are corresponding with the reset phase during a frame image-driven.Voltage pull-down control module includes the 4th
Switch element M4, one end of actuation voltage output module connect low potential power source EVGL, and the other end connects pixel-driving circuit 100
Output end EN, the control terminal of actuation voltage output module connects the 4th switch element M4, and the 4th switch element M4 is in the first rank
Section control actuation voltage output module is opened and exports low-potential voltage to the output end EN of pixel-driving circuit 100.Specifically
Ground, reset phase EN of the output respective pixel circuit of 100 first stage of pixel-driving circuit in the display driving of each frame
Input, in this stage, the 4th switch element M4 is opened, and the 6th switch element M6 is opened, and output signal line EN output second is driven
Dynamic signal, the second driving signal are low-potential signal, and T3 is closed in pixel circuit, and Gn inputs low-potential signal, and T1 is closed, Gn-2
High potential signal is inputted, T4 is opened, and not will form access between supply voltage ELVDD and Vinitial, supply voltage ELVDD will not
Electric current is generated, power consumption is saved.
In the second stage of a drive cycle, it is high that voltage pulls up control module control pull-up voltage output module output
Potential voltage, benefit of the second stage between first stage and phase III, during second stage and a frame image-driven
It is corresponding to repay the stage.Voltage pull-down control module further includes the 5th switch element M5, and the 5th switch element M5 is controlled in second stage
Actuation voltage output module is closed.Specifically, pixel-driving circuit 100 is in the output respective pixel circuit of second stage each
The input of compensated stage EN in frame display driving, in this stage, the 5th switch element M5 is opened, and the 6th switch element M6 is closed
It closes, first switching element M1 is opened, and second switch element M2 is opened, and output signal line EN exports the first driving signal, and first drives
Dynamic signal is high potential signal, and T3 is opened, and in this stage, Gn inputs high potential signal, and T1 is opened, and Gn-2 inputs low potential letter
Number, T4 is closed.
Within the phase III of a drive cycle, it is low that voltage pull-down control module controls the output of actuation voltage output module
Potential voltage, phase III are corresponding with the data write phase during a frame image-driven.Voltage pull-down control module is also wrapped
The 5th switch element M5 is included, the control terminal of actuation voltage output module is also connected with the 5th switch element M5, the 5th switch element M5
It is opened in phase III control actuation voltage output module and exports low-potential voltage to the output end of pixel-driving circuit 100
EN.Specifically, output respective pixel circuit of the pixel-driving circuit 100 in the phase III shows the gray scale in driving in each frame
The input of data voltage write phase EN, in this stage, the 5th switch element M5 is opened, and the 6th switch element M6 is opened, defeated
Signal wire EN exports the second driving signal, i.e. low-potential signal out, and T3 is closed, and Gn inputs high potential signal, and T1 is opened, and Gn-2 is defeated
Enter low-potential signal, T4 is closed.
Within the period 4 of a drive cycle, it is high that voltage pulls up control module control pull-up voltage output module output
Potential voltage, fourth stage were located at after the phase III, and fourth stage is corresponding with the light emitting phase during a frame image-driven.
Voltage pull-down control module further includes the 7th switch element M7, the control of the 7th switch element M7 connection actuation voltage output module
End, the 7th switch element M7 are closed in fourth stage control actuation voltage output module.Specifically, pixel-driving circuit 100 exists
The input of light emitting phase EN of the output respective pixel circuit of fourth stage in the display driving of each frame, in this stage, the
Seven switch element M7 are opened, and the 6th switch element M6 is closed, and second switch element M2 is opened, and signal output line EN output first is driven
Dynamic signal, i.e. high potential signal, T3 are opened, and Gn inputs low-potential signal, and T1 is closed, and Gn-2 inputs low-potential signal, and T4 is closed.
In this way, with the variation that above-mentioned timing control pixel-driving circuit 100 is exported in the signal of different phase, to make picture
The input signal in each stage of plain circuit drives generates variation, and during entire timing, output signal is defeated two stages
Low-potential signal out, in the reset phase of respective pixel circuit drives, EN inputs low-potential signal, supply voltage for one of them
ELVDD will not generate electric current, save power consumption.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the utility model.In this explanation
In book, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While there has been shown and described that the embodiments of the present invention, those skilled in the art can manage
Solution: a variety of to the progress of these embodiments can change in the case where not departing from the principles of the present invention and objective, modify,
Replacement and variant, the scope of the utility model are defined by the claims and their equivalents.
Claims (27)
1. a kind of pixel-driving circuit, which is characterized in that the pixel-driving circuit includes:
First output control module, for generating first switch signal according to the first input signal of input；
First output module, for exporting the first driving signal according to the first switch signal；
Second output control module, for generating second switch signal according to the second input signal of input；
Third output control module, for generating third switching signal according to the third input signal of input；
Second output module, for exporting the second driving signal according to the second switch signal or the third switching signal；
First output module and second output module select one output first driving signal or second drive
To the pixel circuit connecting with the pixel-driving circuit to drive the pixel circuit, first driving signal is dynamic signal
High potential signal, second driving signal are low-potential signal；
In the first stage, second output module exports second driving signal, and the first stage corresponds to the pixel circuit
The input of reset phase in the display driving of each frame image.
2. pixel-driving circuit as described in claim 1, which is characterized in that first output control module includes:
First input signal cable and first switching element, the first end of the first switching element and first input signal cable
Connection, first input signal cable generate the first switch signal, the first switch according to first input signal
Element is opened when receiving the first switch signal.
3. pixel-driving circuit as claimed in claim 2, which is characterized in that first output module includes: second switch
The first end of element and signal output line, the second switch element is connect with the second end of the first switching element, described
The second end of second switch element is connect with the signal output line, and when the first switching element is opened, described second is opened
It closes element to open, the signal output line exports first driving signal.
4. pixel-driving circuit as claimed in claim 3, which is characterized in that first output module further include:
Third switch element, the third end of the third switch element is connect with the first end of the second switch element, described
The first end of third switch element is connect with the signal output line, exports first driving signal in the signal output line
When, the third switch element is opened.
5. pixel-driving circuit as claimed in claim 4, which is characterized in that second output control module includes: the 4th
Switch element and the second input signal cable, second input signal cable are connect with the first end of the 4th switch element, institute
It states the second input signal cable and the second switch signal is generated according to second input signal, the 4th switch element is connecing
Opening when receiving the second switch signal.
6. pixel-driving circuit as claimed in claim 5, which is characterized in that the third output control module includes: the 5th
Switch element, third input signal cable and the 4th input signal cable, the first end and the third of the 5th switch element are defeated
Enter signal wire connection, the third end of the 5th switch element is connect with the 4th input signal cable, the third input letter
It number is generated according to input signal and the 4th input signal cable according to input signal by the third input signal cable, it is described
Third switching signal is generated according to the third input signal, and the 5th switch element is when receiving the third switching signal
It opens.
7. pixel-driving circuit as claimed in claim 6, which is characterized in that second output module includes: the 6th switch
The first end of element, the 6th switch element is connect with the second end of the 4th switch element, the 6th switch element
Third end connect with the signal output line, when the 4th switch element is opened, the 6th switch element is opened, institute
It states signal output line and exports second driving signal.
8. pixel-driving circuit as claimed in claim 7, which is characterized in that the first end of the 6th switch element also with institute
The third end connection of the 5th switch element is stated, when the 5th switch element is opened, the 6th switch element is opened, described
Signal output line exports second driving signal.
9. pixel-driving circuit as claimed in claim 8, which is characterized in that the third output control module further include:
7th switch element and the 5th input signal cable, the first end of the 7th switch element and the 5th input signal cable
Connection, the third end of the 7th switch element is connect with the first end of the 6th switch element.
10. pixel-driving circuit as claimed in claim 9, which is characterized in that the third output control module further include:
8th switch element, the first end of the 8th switch element respectively with the first end of the 6th switch element, described
The third end of 5th switch element connects, and the third end of the 8th switch element and the second end of first switching element connect.
11. pixel-driving circuit as claimed in claim 10, which is characterized in that in the first stage, the 4th switch
Element is opened, and the 6th switch element is opened, and the signal output line exports second driving signal, second driving
Signal is low-potential signal, and the output of the signal output line corresponds to pixel circuit weight in the display driving of each frame image
Set the input in stage.
12. pixel-driving circuit as claimed in claim 10, which is characterized in that in second stage, the first switching element
It opens, the second switch element is opened, and the signal output line exports the first driving signal, and first driving signal is height
Electric potential signal, the corresponding pixel circuit of the output of signal output line compensated stage in the display driving of each frame image
Input.
13. pixel-driving circuit as claimed in claim 10, which is characterized in that in the phase III, the 5th switch element
It opens, the 6th switch element is opened, and the signal output line exports second driving signal, second driving signal
For low-potential signal, gray scale of the corresponding pixel circuit of the output of the signal output line in the display driving of each frame image
The input of data voltage write phase.
14. pixel-driving circuit as claimed in claim 10, which is characterized in that in fourth stage, the 7th switch element
It opens, the 6th switch element is closed, and the second switch element is opened, the first driving of signal output line output letter
Number, first driving signal is low-potential signal, and the output of the signal output line corresponds to the pixel circuit in each frame
Light emitting phase in image display driving.
15. a kind of display panel, which is characterized in that including such as described in any item pixel-driving circuits of claim 1-14.
16. display panel as claimed in claim 15, which is characterized in that the display panel includes that Organic Light Emitting Diode is aobvious
Show panel.
17. a kind of pixel-driving circuit characterized by comprising voltage pull up control module, voltage pull-down control module, on
Pull-up voltage output module and actuation voltage output module, in a drive cycle, voltage pulls up control module and voltage drop-down
Control module control pull-up voltage output module and actuation voltage output module respectively in section in different times, so that pixel is driven
Dynamic circuit at least exports low-potential voltage within one of them period of a drive cycle.
18. pixel-driving circuit as claimed in claim 17, which is characterized in that two of a drive cycle it is discontinuous and
In the length different period, the voltage pull-down control module controls actuation voltage output module output low-potential voltage.
19. pixel-driving circuit as claimed in claim 18, which is characterized in that within the first stage of a drive cycle,
The voltage pull-down control module controls the actuation voltage output module and exports low-potential voltage, the first stage and a frame
Reset phase during image-driven is corresponding.
20. pixel-driving circuit as claimed in claim 19, which is characterized in that within the phase III of a drive cycle,
The voltage pull-down control module controls the actuation voltage output module and exports low-potential voltage, the phase III and a frame
Data write phase during image-driven is corresponding.
21. pixel-driving circuit as claimed in claim 20, which is characterized in that in the second stage of a drive cycle,
The voltage pull-up control module controls the pull-up voltage output module and exports high-potential voltage, and the second stage is located at institute
It states between first stage and the phase III, the second stage is corresponding with the compensated stage during a frame image-driven.
22. pixel-driving circuit as claimed in claim 21, which is characterized in that in the fourth stage of a drive cycle,
The voltage pull-up control module controls the pull-up voltage output module and exports high-potential voltage, and the fourth stage is located at institute
After stating the phase III, the fourth stage is corresponding with the light emitting phase during a frame image-driven.
23. pixel-driving circuit as claimed in claim 17, which is characterized in that the voltage pull-down control module includes multiple
Different switch elements, the multiple switch element control the drop-down electricity respectively in the different time sections of a drive cycle
Output module is pressed to export low-potential voltage.
24. pixel-driving circuit as claimed in claim 23, which is characterized in that the voltage pull-down control module includes the 4th
Switch element, one end of the actuation voltage output module connect low potential power source, and the other end connects the pixel-driving circuit
Output end, the control terminal of the actuation voltage output module connects the 4th switch element, and the 4th switch element is in the first stage
Control actuation voltage output module is opened and exports low-potential voltage to the output end of pixel-driving circuit.
25. pixel-driving circuit as claimed in claim 24, which is characterized in that voltage pull-down control module further includes the 5th opening
Element is closed, the control terminal of actuation voltage output module is also connected with the 5th switch element, and the 5th switch element is in third
Stage control actuation voltage output module is opened and exports low-potential voltage to the output end of the pixel-driving circuit.
26. pixel-driving circuit as claimed in claim 25, which is characterized in that the 5th switch element is also in second stage
The actuation voltage output module is controlled to close.
27. pixel-driving circuit as claimed in claim 26, which is characterized in that the voltage pull-down control module further includes
Seven switch elements, the 7th switch element connect the control terminal of the actuation voltage output module, the 7th switch element
The actuation voltage output module is controlled in fourth stage to close.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920081283.5U CN209418106U (en) | 2019-01-17 | 2019-01-17 | Pixel-driving circuit and display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920081283.5U CN209418106U (en) | 2019-01-17 | 2019-01-17 | Pixel-driving circuit and display panel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113261043A (en) * | 2019-01-17 | 2021-08-13 | 深圳市柔宇科技股份有限公司 | Pixel driving circuit and display panel |
| CN114141182A (en) * | 2020-09-03 | 2022-03-04 | 深圳市柔宇科技股份有限公司 | EOA circuit, array substrate and display device |
| CN114155803A (en) * | 2020-09-07 | 2022-03-08 | 深圳市柔宇科技股份有限公司 | Scanning drive circuit and display panel |
-
2019
- 2019-01-17 CN CN201920081283.5U patent/CN209418106U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113261043A (en) * | 2019-01-17 | 2021-08-13 | 深圳市柔宇科技股份有限公司 | Pixel driving circuit and display panel |
| CN114141182A (en) * | 2020-09-03 | 2022-03-04 | 深圳市柔宇科技股份有限公司 | EOA circuit, array substrate and display device |
| CN114155803A (en) * | 2020-09-07 | 2022-03-08 | 深圳市柔宇科技股份有限公司 | Scanning drive circuit and display panel |
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Effective date of registration: 20200330 Address after: 518000 Rouyu international flexible display base, No.18 dingshanhe Road, Pingdi street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN ROYOLE DISPLAY TECHNOLOGY Co.,Ltd. Address before: 518172 43 Universiade Software Town, 8288 Longgang Avenue, Henggang Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ROYOLE TECHNOLOGIES Co.,Ltd. |
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Granted publication date: 20190920 Termination date: 20220117 |