CN106023940B - A kind of two-stage list metal-oxide-semiconductor GOA scan drive circuits and display panel - Google Patents
A kind of two-stage list metal-oxide-semiconductor GOA scan drive circuits and display panel Download PDFInfo
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- CN106023940B CN106023940B CN201610614801.6A CN201610614801A CN106023940B CN 106023940 B CN106023940 B CN 106023940B CN 201610614801 A CN201610614801 A CN 201610614801A CN 106023940 B CN106023940 B CN 106023940B
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
The invention discloses a kind of two-stage list metal-oxide-semiconductor GOA scan drive circuits and display panels, in every group of scan drive cell of the two-stage list metal-oxide-semiconductor GOA scan drive circuits, the grade communication input signal that the grade of first turntable driving circuit and the input control circuit of the second turntable driving circuit is passed to signal input part input is set as the different signal of sequential, and the grade of the grade communication control terminal of input control circuit input is passed signal control signal and is set as the different signal of sequential.By the above-mentioned means, the present invention can be such that the Q points electric leakage probability for controlling scanning signal output in circuit declines, achieve the purpose that reduce circuit malfunction risk.
Description
Technical field
The present invention relates to display technology fields, more particularly to a kind of two-stage list metal-oxide-semiconductor GOA scan drive circuits and display
Panel.
Background technology
Gate Driver On Array, abbreviation GOA are to utilize existing Thin Film Transistor-LCD Array processing procedures
By Gate row scanning drive signal circuit productions on Array substrates, one to the Gate type of drive progressively scanned is realized
Technology.
Existing GOA circuits and driving framework are during operation it is possible that the risk of failure.First, as shown in Figure 1,
First order GOA circuits and second level GOA circuits grade having the same are conveyed into signal STV, and first order Gate signals are believed by CK2
Number generate, second level Gate signals by CK3 signals generate, therefore the high level of the first order and the second level GOA circuits Q points holding
Time is different (as shown in Figure 3), and the high-level retention time of the Q points of second level GOA circuits is longer, is susceptible to Q points
Leak electricity and cause the risk of second level GOA circuit malfunctions.In addition to this, as shown in Fig. 2, the signal passed for GOA circuit-levels is
STV signals, Gate2 signals, Gate4 signals ..., Gate2n-2 signals, wherein Gate1 signals, Gate3 signals ...,
Gate2n-1 signals are not used in circuit-level biography, it is thus possible to will appear Gate drive signals RC and load non-uniform situation.
Invention content
The invention mainly solves the technical problem of providing a kind of two-stage list metal-oxide-semiconductor GOA scan drive circuits and display surfaces
Plate can solve the problems, such as that existing GOA circuits and driving framework are easy failure during operation.
In order to solve the above technical problems, one aspect of the present invention is：A kind of two-stage list metal-oxide-semiconductor GOA is provided
Scan drive circuit, including：
According to the several groups scan drive cell that scan line orientation arranges, scan drive cell described in every group includes P
Point control circuit and at least the first turntable driving circuit arranged according to scan line orientation, the second turntable driving circuit, often
Turntable driving circuit described in road includes the input control circuit and output control circuit being connected with each other；
In the P point control circuits coupling group in scan drive cell described in every group all input control circuits and
Output control circuit；
The input control circuit includes that grade passes signal input part, grade passes signal output end and grade communication control terminal, institute
It includes output signal input terminal, output signal output end and output signal control terminal to state output control circuit；
In scan drive cell described in every group, the grade communication number of the input control circuit of the first turntable driving circuit
The grade communication input signal sequential of input terminal input is different from the grade of the input control circuit of the second turntable driving circuit
Pass the grade communication input timing of signal input part input；The grade communication of the input control circuit of the first turntable driving circuit
The grade communication number control signal sequence of number control terminal input is different from the input control circuit of the second turntable driving circuit
The grade communication control sequential of grade communication control terminal input.
Wherein, in a scan drive cell, the grade of the input control circuit of the first turntable driving circuit passes
The input signal of signal input part input, the control signal of grade communication control terminal input are a grade communication number, the first clock respectively
Signal, the grade communication number are the output control electricity of last turntable driving circuit in the previous scan drive cell
The output signal on road；
The grade of the input control circuit of the second turntable driving circuit passes the input signal of signal input part input, grade passes
The control signal of signal control terminal input is the output signal of the output control circuit of the first turntable driving circuit, the respectively
Two clock signals；
The control signal, described of the output signal control terminal input of the output control circuit of the first turntable driving circuit
The control signal of the output signal control terminal input of the output control circuit of second turntable driving circuit is second clock letter respectively
Number, third clock signal；
Wherein, the sequential of first clock signal, second clock signal and third clock signal three is sequentially staggered
And differ, and in the latter scan drive cell, when first clock signal, second clock signal and third
The port respective change that clock signal inputs respectively.
Wherein, the turntable driving number of, lines in scan drive cell described in every group is two；
The P point control circuits include P points control terminal, the 1 P points coupling end and the 2nd P points coupling end；
The P points control terminal inputs the 4th clock signal, and the sequential of the 4th clock signal is believed than the third clock
Number sequential after move；
First P points coupling end is coupled in the input control circuit, described defeated of the first turntable driving circuit
Go out between control circuit, and is coupled in the input control circuit of the second turntable driving circuit, output control
Between circuit；
2nd P points coupling end is coupled in the output letter of the output control circuit of the first turntable driving circuit
Number output end, the second turntable driving circuit the output control circuit output signal output end between.
Wherein, the grade communication number that the turntable driving circuit of corresponding first scan line is inputted is initial
Signal.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of display panel is provided, is wrapped
It includes：Several scan lines and two-stage list metal-oxide-semiconductor GOA scan drive circuits.
Wherein, the two-stage list metal-oxide-semiconductor GOA scan drive circuits include：
According to the several groups scan drive cell that the scan line orientation arranges, scan drive cell packet described in every group
At least the first turntable driving circuit, the second turntable driving circuit for including P point control circuits and being arranged according to scan line orientation,
Turntable driving circuit described in per road includes the input control circuit and output control circuit being connected with each other；
In the P point control circuits coupling group in scan drive cell described in every group all input control circuits and
Output control circuit；
The input control circuit includes that grade passes signal input part, grade passes signal output end and grade communication control terminal, institute
It includes output signal input terminal, output signal output end and output signal control terminal to state output control circuit；
In scan drive cell described in every group, the grade communication number of the input control circuit of the first turntable driving circuit
The grade communication input signal sequential of input terminal input is different from the grade of the input control circuit of the second turntable driving circuit
Pass the grade communication input timing of signal input part input；The grade communication of the input control circuit of the first turntable driving circuit
The grade communication number control signal sequence of number control terminal input is different from the input control circuit of the second turntable driving circuit
The grade communication control sequential of grade communication control terminal input.
Wherein, in a scan drive cell, the grade of the input control circuit of the first turntable driving circuit passes
The input signal of signal input part input, the control signal of grade communication control terminal input are a grade communication number, the first clock respectively
Signal, the grade communication number are the output control electricity of last turntable driving circuit in the previous scan drive cell
The output signal on road；
The grade of the input control circuit of the second turntable driving circuit passes the input signal of signal input part input, grade passes
The control signal of signal control terminal input is the output signal of the output control circuit of the first turntable driving circuit, the respectively
Two clock signals；
The control signal, described of the output signal control terminal input of the output control circuit of the first turntable driving circuit
The control signal of the output signal control terminal input of the output control circuit of second turntable driving circuit is second clock letter respectively
Number, third clock signal；
Wherein, the sequential of first clock signal, second clock signal and third clock signal three is sequentially staggered
And differ, and in the latter scan drive cell, when first clock signal, second clock signal and third
The port respective change that clock signal inputs respectively.
Wherein, the turntable driving number of, lines in scan drive cell described in every group is two；
The P point control circuits include P points control terminal, the 1 P points coupling end and the 2nd P points coupling end；
The P points control terminal inputs the 4th clock signal, and the sequential of the 4th clock signal is believed than the third clock
Number sequential after move；
First P points coupling end is coupled in the input control circuit, described defeated of the first turntable driving circuit
Go out between control circuit, and is coupled in the input control circuit of the second turntable driving circuit, output control
Between circuit；
2nd P points coupling end is coupled in the output letter of the output control circuit of the first turntable driving circuit
Number output end, the second turntable driving circuit the output control circuit output signal output end between.
Wherein, the grade communication number that the turntable driving circuit of corresponding first scan line is inputted is initial
Signal.
The beneficial effects of the invention are as follows：The case where being different from the prior art, the present invention make in every group of scan drive cell, the
The grade of the input control circuit of one scanning driver circuit and the second turntable driving circuit passes the grade communication number of signal input part input
Input signal sequential is different, and the grade communication number of the grade communication control terminal input of input control circuit controls signal sequence
It is different.By the above-mentioned means, the present invention make Q2 points output high level in the output control circuit of the second turntable driving circuit when
Between than the first turntable driving circuit output control circuit in Q1 points output high level time after move, so that the high level of Q2 points is protected
Holding the time greatly reduces, and to reduce the electric leakage probability of Q2 points, achievees the purpose that reduce circuit malfunction risk.
Description of the drawings
Fig. 1 is a kind of electrical block diagram of two-stage list metal-oxide-semiconductor GOA scan drive circuits in the prior art；
Fig. 2 is the driving configuration diagram of GOA scan drive circuits shown in Fig. 1；
Fig. 3 is the waveform timing chart of the work of GOA scan drive circuits shown in Fig. 1；
Fig. 4 is the electrical block diagram of one embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention；
Fig. 5 is the driving configuration diagram of one embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention；
Fig. 6 is the waveform timing chart of one embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits work of the present invention；
Fig. 7 is the software emulation result schematic diagram of one embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention；
Fig. 8 is the electrical block diagram of another embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention；
Fig. 9 is the structural schematic diagram of one embodiment of display panel of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 4 and Fig. 5 are please referred to, Fig. 4 is the circuit of one embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention
Structural schematic diagram, Fig. 5 are the driving configuration diagrams of one embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention.
As shown in Figure 4 and Figure 5, two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention include：
According to the several groups scan drive cell 501 that scan line orientation arranges, scan drive cell 501 described in every group
It is scanned including P point control circuits 401 and according at least the first turntable driving circuit 5011, second of scan line orientation arrangement
Driver circuit 5012 includes the input control circuit 402 being connected with each other and output control electricity per turntable driving circuit described in road
Road 403；
All input controls in 401 coupling group of the P point control circuits in scan drive cell 501 described in every group
Circuit 402 and output control circuit 403；
The input control circuit 402 includes that grade passes signal input part, grade passes signal output end and grade communication control terminal,
The output control circuit 403 includes output signal input terminal, output signal output end and output signal control terminal；
In scan drive cell 501 described in every group, the input control circuit 402 of the first turntable driving circuit 5011
Grade pass signal input part input grade communication input signal sequential be different from the second turntable driving circuit 5012 it is defeated
The grade for entering control circuit 402 passes the grade communication input timing of signal input part input；The first turntable driving circuit 5011
Input control circuit 402 grade communication control terminal input grade communication number control signal sequence be different from it is described second scan
The grade communication number of the grade communication control terminal input of the input control circuit 402 of driver circuit 5012 controls signal sequence.
Wherein, the turntable driving circuit is for generating scanning signal；The P points refer in the non-work of GOA scan drive circuits
Stablize the point of output with period holding circuit, the P point control circuits realize circuit stability output by the control to P points.
In an application examples, the turntable driving number of, lines in scan drive cell described in every group is two.
As shown in figure 4, the grade biography signal input part of the input control circuit 402 of the first turntable driving circuit 5011 is defeated
The grade communication input signal entered is STV signals, and the grade of the input control circuit 402 of the second turntable driving circuit 5012 passes
The grade communication number of signal input part input is Gate1 signals, and the two sequential is different, and the Gate1 signal sequences are than the STV
It is moved after signal sequence；The grade communication control terminal input of the input control circuit 402 of the first turntable driving circuit 5011
It is the first clock signal CK1 that grade, which passes signal control signal, the input control circuit 402 of the second turntable driving circuit 5012
It is second clock signal CK2 that the grade of grade communication control terminal input, which passes signal control signal, and the two sequential is different, and the CK2
Signal sequence after the CK1 signal sequences than moving.
In addition, turntable driving circuit described in per road further comprises controlling circuit of voltage regulation 405, the controlling circuit of voltage regulation
The 405 couplings input control circuit 402 and the output control circuit 403, for reducing in the output control circuit 403
The influence that Q point signals are booted to other circuits.
Wherein, the Q points are the points for controlling drive signal output in the output control circuit 403, described the
Q points described in scan line road 5011 is specifically Q1 points, and the Q points described in second sweep circuit 5012 are specifically Q2 points,
The Q points signal refers to the control signal of the output signal control terminal input of the output control circuit 403.
In a scan drive cell 501, the input control circuit 402 of the first turntable driving circuit 5011
Grade passes the input signal of signal input part input, the control signal of grade communication control terminal input is a grade communication number, first respectively
Clock signal, the grade communication number are the output controls of last turntable driving circuit in the previous scan drive cell
The output signal of circuit processed；
The grade of the input control circuit 402 of the second turntable driving circuit 5012 passes the input letter of signal input part input
The control signal of number, grade communication control terminal input is the output control circuit of the first turntable driving circuit 5011 respectively
403 output signal, second clock signal；
The control letter of the output signal control terminal input of the output control circuit 403 of the first turntable driving circuit 5011
Number, the control signal point of the output signal control terminal input of the output control circuit 403 of the second turntable driving circuit 5012
It is not second clock signal, third clock signal；
Wherein, the grade communication number that the turntable driving circuit of corresponding first scan line is inputted is initial
Signal.
Specifically, the first turntable driving circuit 5011 described in the present embodiment corresponds to first scan line.In conjunction with Fig. 4
Shown in Fig. 5, the grade of the input control circuit 402 of the first turntable driving circuit 5011 passes signal input part input
The control signal that input signal, grade communication control terminal input is initial signal STV, the first clock signal CK1, and institute respectively
It is identical with the first clock signal CK1 sequential to state initial signal STV；The output of the first turntable driving circuit 5011 controls
The input signal of output signal input terminal of circuit 403, the output signal of output signal output end, the input of output signal control terminal
Control signal be second clock signal CK2, the first scanning signal Gate1 and Q1 point signal respectively.
Further regard to Fig. 4, the grade communication number input of the input control circuit 402 of the second turntable driving circuit 5012
Hold input input signal, grade communication control terminal input control signal be the first scanning signal Gate1 respectively, it is described
Second clock signal CK2, the output signal input terminal of the output control circuit 403 of the second turntable driving circuit 5012 it is defeated
It is third clock letter respectively to enter the control signal that signal, the output signal of output signal output end, output signal control terminal input
Number CK3, the second scanning signal Gate2 and Q2 point signal.
Fig. 5 is further regarded to, in latter scan drive cell 502, the input of the first turntable driving circuit 5021
The grade communication number that the grade of control circuit 402 passes signal input part input is described the in above-mentioned scan drive cell 501
Second scanning signal of the output of the output signal output end of the output control circuit 403 of two turntable driving circuits 5012
The output of the output control circuit of last turntable driving circuit 5012 in Gate2, that is, previous scan drive cell 501
Signal, the biography signal change procedure of grade described in follow up scan driving unit and so on, details are not described herein again.By being swept described
Grade communication number of the signal for latter turntable driving circuit is retouched, the uniformity of scanning signal driving RC loads is can effectively improve.
Wherein, in described one scan drive cell 501, first clock signal, second clock signal and
The sequential of third clock signal three is sequentially staggered and differs, and in the latter scan drive cell, and described first
The port respective change that clock signal, second clock signal and third clock signal input respectively.
Specifically, it is moved after sequential of the sequential of the second clock signal CK2 than the first clock signal CK1, it is described
The sequential of third clock signal CK3 is moved after the sequential than the second clock signal CK2.Further regard to Fig. 5, it is latter described to sweep
It retouches in driving unit 502, the grade communication number of the input control circuit 402 of the first turntable driving circuit 5021 is defeated
The control signal end for entering end inputs the third clock signal CK3, the input letter of the P point control terminals of the P point control circuits 401
Number end inputs the second clock signal CK2, the output letter of the output control circuit 403 of the second turntable driving circuit 5012
The input signal end of number output end inputs the first clock signal CK1；In follow up scan driving unit, the first clock letter
Number, the second clock signal and third clock signal port change procedure that inputs respectively, details are not described herein again.
Fig. 4 is further regarded to, the P point control circuits 401 include P points control terminal, the 1 P points coupling end and the 2nd P points
Couple end；
First P points coupling end be coupled in the first turntable driving circuit 5011 the input control circuit 402,
Between the output control circuit 403, and it is coupled in the input control circuit of the second turntable driving circuit 5012
402, between the output control circuit 403；
2nd P points coupling end is coupled in the output control circuit 403 of the first turntable driving circuit 5011
Output signal output end, the second turntable driving circuit 5012 the output control circuit 403 output signal output
Between end；
Fig. 5 is further regarded to, in a scan drive cell 501, the P points control terminal inputs the 4th clock letter
Number, it is moved after sequential of the sequential than the third clock signal of the 4th clock signal；In the latter scan drive cell
In 502, the P points control terminal inputs the second clock signal CK2；In follow up scan driving unit, the P points control terminal
Input signal change procedure and so on.
Referring to Fig. 6, when Fig. 6 is the waveform of one embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits work of the present invention
Sequence figure.
In conjunction with shown in Fig. 4 and Fig. 6, when the first clock signal CK1 high level pulses come it is interim, the first turntable driving circuit
The T1 transistors of input control circuit 402 are opened, the T3 transistors pair that initial signal STV passes through T1 and controlling circuit of voltage regulation 404
The capacitor C1 of the output control circuit 403 of the first turntable driving circuit carries out charge control, the capacitor C1 and Q1
Point is connected, so that Q1 points are charged to high level, and the Q1 points is made to be maintained at high level state；Meanwhile it is described
The control that Q1 points pass through the T2 transistors to P point control circuits 401 so that the T2 transistors are opened, and low level signal VGL will
The P points are pulled down to low level, to realize that the drop-down for P points controls, and due to the P points of the P point control circuits 401
There are C2 capacitors in control terminal so that the P points are maintained at low level state；At this point, the T5 of the P point control circuits 401,
T6, T7 and T8 transistor are in closed state.
When second clock signal CK2 high level pulses carry out interim, the output control circuit of the first turntable driving circuit
First scanning signal Gate1 of 403 outputs exports high level pulse signal, that is, produces the first scanning drive signal.Meanwhile institute
State the grade communication number input that second clock signal CK2 and the first scanning signal Gate1 is the second turntable driving circuit respectively
The control signal and grade communication number that control circuit 402 inputs, the second clock signal CK2 high level pulses come temporarily, described
The T10 transistors that the grade of second turntable driving circuit passes signal input control circuit 402 are opened, first scanning drive signal
Gate1 is by the T12 transistors of the T10 transistors and the controlling circuit of voltage regulation 404 of the second turntable driving circuit to institute
The capacitor C3 for stating the output control circuit 403 of the second turntable driving circuit carries out charge control, the capacitor C3 and Q3 points
It is connected, so that Q3 points are charged to high level, and the Q3 points is made to be maintained at high level state；Meanwhile the Q2
The control that point passes through the T11 transistors to P point control circuits 401 so that the T11 transistors are opened, and may be implemented for P points
Drop-down control.
When third clock signal CK3 high level pulses carry out interim, the output control circuit of the second turntable driving circuit
Second scanning signal Gate2 of 403 outputs exports high level pulse signal, that is, produces the second scanning drive signal.
When the 4th clock signal CK4 high level pulses carry out interim, the T9 crystalline substances of the P point control terminals of the P point control circuits 401
Body pipe is opened, and P points are charged to high level, due to there is the capacitor C2 being connected with the P points in the P points control terminal, is made
The P points are maintained at high level state；Later, T5, T6, T7 and T8 transistor of the P point control circuits 401 are opened, low electricity
The Q1 points and Q2 points are pulled down to low level by ordinary mail VGL, and due to there is the electricity being connect with the Q1 points
The container C1 and capacitor C2 being connect with the Q2 points makes Q1 the and Q2 points stablize in low level state, so that
The first scanning signal Gate1 and the second scanning signal Gate2 is also maintained at low level state, and entire circuit is in steady
Determine state.
Referring to Fig. 7, Fig. 7 is the software emulation knot of one embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention
Fruit schematic diagram.
Comparison diagram 6 and Fig. 7 it is found that in Fig. 7 Q1 points signal, Gate1 signals, Q2 point signals and Gate2 signals emulation knot
Fruit is consistent with the anticipated output result in Fig. 6, therefore, by software emulation result verification, the circuit function of present embodiment with
Foregoing description process is consistent, can realize desired effect.
In the above-described embodiment, by the way that the first scan drive circuit and second of every group of scan drive cell is scanned drive
The grade of the input control circuit of dynamic circuit is conveyed into the input signal that different sequential are arranged in signal input part, and by described first
It is different that the grade of the input control circuit of scan drive circuit and second scan drive circuit is conveyed into signal input part setting
The control signal of sequential makes the Q2 points in second scan drive circuit arrive in second clock signal CK2 high level pulses
When just export high level, make Q2 point high-level retention times reduce, to reduce Q3 points electric leakage probability, reach reduce circuit lose
Imitate the purpose of risk.
Referring to Fig. 8, Fig. 8 is the circuit structure of another embodiment of two-stage list metal-oxide-semiconductor GOA scan drive circuits of the present invention
Schematic diagram.Fig. 8 is similar with the circuit structure of Fig. 4, and details are not described herein, the difference is that used in circuit shown in Fig. 8
All transistors are all made of p-type metal-oxide-semiconductor, show that two-stage list metal-oxide-semiconductor GOA scan drive circuits proposed by the present invention are applicable not only to
Using the GOA circuit designs of N-type metal-oxide-semiconductor, the GOA circuit designs using p-type metal-oxide-semiconductor are applied also for, there is compatibility well.
Referring to Fig. 9, Fig. 9 is the structural schematic diagram of one embodiment of display panel of the present invention.As described in Figure 9, described aobvious
Show that panel 90 includes several scan lines 901 and two-stage list metal-oxide-semiconductor GOA scan drive circuits 902.
The two-stage list metal-oxide-semiconductor GOA scan drive circuits 902 connect institute for exporting scanning signal, the scan line 901
The output end for stating two-stage list metal-oxide-semiconductor GOA scan drive circuits 902, for receiving the scanning signal；The two-stage list metal-oxide-semiconductor
GOA scan drive circuits 902 use circuit structure shown in Fig. 4, and details are not described herein for concrete structure.
In the above-described embodiment, display panel 90 is by will be in the two-stage list metal-oxide-semiconductor GOA scan drive circuits 902
The grade of first scan drive circuit of every group of scan drive cell and the input control circuit of the second scan drive circuit is conveyed into
Signal input part is arranged the input signal of different sequential, and by first scan drive circuit and second turntable driving
The grade of the input control circuit of circuit is conveyed into the control signal that different sequential are arranged in signal input part, and second scanning is made to drive
Q2 point high-level retention times in dynamic circuit are reduced, and to reduce the probability of Q2 points electric leakage, reaching reduces circuit malfunction risk
Purpose.
In other embodiments, the two-stage list metal-oxide-semiconductor GOA scan drive circuits 902 can also use shown in Fig. 8
Circuit structure can equally reduce the probability of Q2 points electric leakage, achieve the purpose that reduce circuit malfunction risk.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (8)
1. a kind of two-stage list metal-oxide-semiconductor GOA scan drive circuits, which is characterized in that including：
According to the several groups scan drive cell that scan line orientation arranges, scan drive cell described in every group includes P point controls
Circuit processed and at least the first turntable driving circuit arranged according to scan line orientation, the second turntable driving circuit, per road institute
It includes the input control circuit and output control circuit being connected with each other to state turntable driving circuit；
All input control circuits and output in the P point control circuits coupling group in scan drive cell described in every group
Control circuit；
The input control circuit includes that grade passes signal input part, grade passes signal output end and grade communication control terminal, described defeated
It includes output signal input terminal, output signal output end and output signal control terminal to go out control circuit；
In scan drive cell described in every group, the grade communication number of the input control circuit of the first turntable driving circuit inputs
The grade communication input signal sequential of end input is different from the grade communication of the input control circuit of the second turntable driving circuit
The grade communication input timing of number input terminal input；The grade communication number of the input control circuit of the first turntable driving circuit is controlled
The grade for the input control circuit that the grade communication number control signal sequence of end input processed is different from the second turntable driving circuit passes
The grade communication control sequential of signal control terminal input.
2. circuit according to claim 1, which is characterized in that
In a scan drive cell, the grade of the input control circuit of the first turntable driving circuit passes signal input part
The input signal of input, the control signal of grade communication control terminal input are a grade communication number, the first clock signal, the grade respectively
Communication number is the output letter of the output control circuit of last turntable driving circuit in the previous scan drive cell
Number；
The grade of the input control circuit of the second turntable driving circuit passes the input signal of signal input part input, grade communication number
When the control signal of control terminal input is the output signal of the output control circuit of the first turntable driving circuit, second respectively
Clock signal；
The control signal of the output signal control terminal input of the output control circuit of the first turntable driving circuit, described second
The control signal of the output signal control terminal input of the output control circuit of turntable driving circuit is second clock signal, the respectively
Three clock signals；
Wherein, the sequential of first clock signal, second clock signal and third clock signal three is sequentially staggered and not
It is identical, and in the latter scan drive cell, what first clock signal and the third clock signal were inputted
Port exchanges, and the P point control circuits include P point control terminals, and the port variation of the second clock signal input is the P points
Control terminal.
3. circuit according to claim 2, which is characterized in that
The turntable driving number of, lines in scan drive cell described in every group is two；
The P point control circuits include P points control terminal, the 1 P points coupling end and the 2nd P points coupling end；
The P points control terminal inputs the 4th clock signal, and the sequential of the 4th clock signal is than the third clock signal
It is moved after sequential；
First P points coupling end is coupled in the input control circuit of the first turntable driving circuit, output control
Between circuit processed, and it is coupled in the input control circuit of the second turntable driving circuit, the output control circuit
Between；
The output signal for the output control circuit that 2nd P points coupling end is coupled in the first turntable driving circuit is defeated
Outlet, the second turntable driving circuit the output control circuit output signal output end between.
4. circuit according to any one of claims 1 to 3, which is characterized in that corresponding first scan line it is described
The grade communication number that turntable driving circuit is inputted is initial signal.
5. a kind of display panel, including several scan lines and two-stage list metal-oxide-semiconductor GOA scan drive circuits, which is characterized in that packet
It includes：
According to the several groups scan drive cell that the scan line orientation arranges, scan drive cell described in every group includes P
Point control circuit and at least the first turntable driving circuit arranged according to scan line orientation, the second turntable driving circuit, often
Turntable driving circuit described in road includes the input control circuit and output control circuit being connected with each other；
All input control circuits and output in the P point control circuits coupling group in scan drive cell described in every group
Control circuit；
The input control circuit includes that grade passes signal input part, grade passes signal output end and grade communication control terminal, described defeated
It includes output signal input terminal, output signal output end and output signal control terminal to go out control circuit；
In scan drive cell described in every group, the grade communication number of the input control circuit of the first turntable driving circuit inputs
The grade communication input signal sequential of end input is different from the grade communication of the input control circuit of the second turntable driving circuit
The grade communication input timing of number input terminal input；The grade communication number of the input control circuit of the first turntable driving circuit is controlled
The grade for the input control circuit that the grade communication number control signal sequence of end input processed is different from the second turntable driving circuit passes
The grade communication control sequential of signal control terminal input.
6. display panel according to claim 5, which is characterized in that
In a scan drive cell, the grade of the input control circuit of the first turntable driving circuit passes signal input part
The input signal of input, the control signal of grade communication control terminal input are a grade communication number, the first clock signal, the grade respectively
Communication number is the output letter of the output control circuit of last turntable driving circuit in the previous scan drive cell
Number；
The grade of the input control circuit of the second turntable driving circuit passes the input signal of signal input part input, grade communication number
When the control signal of control terminal input is the output signal of the output control circuit of the first turntable driving circuit, second respectively
Clock signal；
The control signal of the output signal control terminal input of the output control circuit of the first turntable driving circuit, described second
The control signal of the output signal control terminal input of the output control circuit of turntable driving circuit is second clock signal, the respectively
Three clock signals；
Wherein, the sequential of first clock signal, second clock signal and third clock signal three is sequentially staggered and not
It is identical, and in the latter scan drive cell, what first clock signal and the third clock signal were inputted
Port exchanges, and the P point control circuits include P point control terminals, and the port variation of the second clock signal input is the P points
Control terminal.
7. display panel according to claim 6, which is characterized in that
The turntable driving number of, lines in scan drive cell described in every group is two；
The P point control circuits include P points control terminal, the 1 P points coupling end and the 2nd P points coupling end；
The P points control terminal inputs the 4th clock signal, and the sequential of the 4th clock signal is than the third clock signal
It is moved after sequential；
First P points coupling end is coupled in the input control circuit of the first turntable driving circuit, output control
Between circuit processed, and it is coupled in the input control circuit of the second turntable driving circuit, the output control circuit
Between；
The output signal for the output control circuit that 2nd P points coupling end is coupled in the first turntable driving circuit is defeated
Outlet, the second turntable driving circuit the output control circuit output signal output end between.
8. according to claim 5 to 7 any one of them display panel, which is characterized in that corresponding first scan line
The grade communication number that the turntable driving circuit is inputted is initial signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610614801.6A CN106023940B (en) | 2016-07-29 | 2016-07-29 | A kind of two-stage list metal-oxide-semiconductor GOA scan drive circuits and display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610614801.6A CN106023940B (en) | 2016-07-29 | 2016-07-29 | A kind of two-stage list metal-oxide-semiconductor GOA scan drive circuits and display panel |
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| CN106023940B true CN106023940B (en) | 2018-07-17 |
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| JP2011118052A (en) * | 2009-12-01 | 2011-06-16 | Sony Corp | Display device and driving method |
| KR101366964B1 (en) * | 2009-12-30 | 2014-02-24 | 엘지디스플레이 주식회사 | Liquid crystal display |
| CN103928005B (en) * | 2014-01-27 | 2015-12-02 | 深圳市华星光电技术有限公司 | For the GOA unit of common driving grid and public electrode, driving circuit and array |
| CN104269134B (en) * | 2014-09-28 | 2016-05-04 | 京东方科技集团股份有限公司 | A kind of gate drivers, display unit and grid drive method |
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