CN106782336A - Drive element of the grid and its driving method, gate driving circuit and display device - Google Patents
Drive element of the grid and its driving method, gate driving circuit and display device Download PDFInfo
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- CN106782336A CN106782336A CN201710067128.3A CN201710067128A CN106782336A CN 106782336 A CN106782336 A CN 106782336A CN 201710067128 A CN201710067128 A CN 201710067128A CN 106782336 A CN106782336 A CN 106782336A
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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]
- G09G3/3266—Details of drivers for scan electrodes
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Abstract
The present invention provides a kind of drive element of the grid and its driving method, gate driving circuit and display device.The drive element of the grid includes charging circuit, pull-down circuit, pull-up circuit and pull-up holding circuit；Charging circuit is used for the output signal of the output end for receiving upper level drive element of the grid, and pull-down node is charged under the control of the first control signal；Pull-down circuit is used to make drive element of the grid export gate drive signal under the control of the first control signal and the second control signal；The output that pull-up circuit is used for drive element of the grid under the control of the first control signal resets；Pull-up holding circuit is used to make under the control of the first control signal the output of drive element of the grid to keep reset state.The drive element of the grid control signal quantity is few, reduces interfering between control signal；Switching tube quantity and external lead wire quantity is few and circuit complexity is low that the drive element of the grid is used, not only reduce production cost, and improve yield rate.
Description
Technical field
The present invention relates to display technology field, in particular it relates to a kind of drive element of the grid and its driving method, grid drive
Dynamic circuit and display device.
Background technology
At present, low temperature polycrystalline silicon (Low Temperature Poly-Silicon, LTPS) technology is widely used in
In the drive circuit of AMOLED, including drive circuit on the peripheral drive circuit and screen of display screen.Due to traditional complementary
(Complementary Metal Oxide Semiconductor, CMOS) low-temperature polysilicon silicon switching tube (LTPS-TFT) makes
Complex process, the complementary low-temperature polysilicon silicon switching tube quantity for being used is generally more, and this produces the drive circuit of AMOLED
Costly, yield rate is low.
In existing AMOLED drive circuits, in single gate scan control circuit unit, generally require using at least 4
Clock signal come control the gated sweep control circuit unit, each gated sweep control circuit unit it is at least complementary by 10
Low-temperature polysilicon silicon switching tube is constituted, and circuit structure is more complicated, and excessive input clock signal not only brings answering for each clock
Miscellaneous sequence problem and interference problem, also make the peripheral drive circuit structure of offer clock signal more complicated.
The content of the invention
The present invention is for above-mentioned technical problem present in prior art, there is provided a kind of drive element of the grid and its driving side
Method, gate driving circuit and display device.The drive element of the grid control signal quantity is few, so as to reduce between control signal
Interfere；The switching tube quantity that is used of the drive element of the grid and external lead wire quantity is few and circuit complexity simultaneously
It is low, so as to not only reduce production cost, and improve yield rate；In addition, the gate drive unit circuit simple structure, accounts for
It is small with area, beneficial to the design of narrow frame display.
The present invention provides a kind of drive element of the grid, including charging circuit, pull-down circuit, pull-up circuit and pull-up keep electricity
Road；The charging circuit and pull-down circuit connection pull-down node；The pull-down circuit, the pull-up circuit and the pull-up
Holding circuit connects pull-up node；The pull-up circuit and the pull-down circuit connect the output end of the drive element of the grid；
The pull-down circuit is connected to the 5th node with the pull-up holding circuit；The charging circuit, the pull-up circuit and described
Pull-up holding circuit connects the first potential end；The pull-down circuit and the pull-up circuit connect the second potential end；
The charging circuit is used for the output signal of the output end for receiving upper level drive element of the grid, and in the first control
The pull-down node is charged under the control of signal；
The pull-down circuit is used to drive under the control of first control signal and the second control signal the grid
Moving cell exports gate drive signal；
The output that the pull-up circuit is used for the drive element of the grid under the control of first control signal is entered
Row resets；
The pull-up holding circuit is used to make the defeated of the drive element of the grid under the control of first control signal
Go out to keep reset state.
Preferably, the charging circuit includes first switch pipe and the first electric capacity；
The grid of the first switch pipe connects the first control signal end, and the first pole connection of the first switch pipe is described
The second pole connection institute of the output end of upper level drive element of the grid, the second pole of the first switch pipe and first electric capacity
State pull-down node；First pole of first electric capacity connects first potential end.
Preferably, the pull-down circuit includes second switch pipe, the 5th switching tube, the 3rd electric capacity and the 8th switching tube；
The grid of the grid of the second switch pipe and the 5th switching tube connects the pull-down node, and described second opens
The first pole for closing pipe connects the pull-up node, and the second pole of the second switch pipe connects first control signal end；
First pole of the 5th switching tube connects the second control signal end, the second pole of the 5th switching tube, described
Second pole of the 3rd electric capacity, the grid of the 8th switching tube and the pull-up holding circuit are connected to the 5th node；
First pole of the 3rd electric capacity and the first pole of the 8th switching tube connect the defeated of the drive element of the grid
Go out end, the second pole of the 8th switching tube connects second potential end.
Preferably, the pull-up circuit includes the 3rd switching tube, the second electric capacity and the 4th switching tube；
The grid of the 3rd switching tube connects first control signal end, the first pole connection of the 3rd switching tube
Second potential end, the second pole of the 3rd switching tube, the first pole of second electric capacity and the 4th switching tube
Grid connects the pull-up node；
First pole of the second pole of second electric capacity and the 4th switching tube connects first potential end；Described
Second pole of four switching tubes connects the output end of the drive element of the grid.
Preferably, the pull-up holding circuit includes the 6th switching tube and the 7th switching tube；
The grid of the 6th switching tube connects the pull-up node, the first pole connection of the 6th switching tube described the
One potential end, the second pole of the 6th switching tube connects the first pole of the 7th switching tube；
The grid of the 7th switching tube connects first control signal end, the second pole connection of the 7th switching tube
5th node.
Preferably, first potential end is high potential, and second potential end is low potential；The first transistor,
The transistor seconds, the third transistor, the 4th transistor, the 5th transistor, the 6th transistor, institute
State the 7th transistor and the 8th transistor is P-type TFT or p-type metal-oxide-semiconductor；The drive element of the grid output
Low level drive signal.
Preferably, first potential end is low potential, and second potential end is high potential；The first transistor,
The transistor seconds, the third transistor, the 4th transistor, the 5th transistor, the 6th transistor, institute
State the 7th transistor and the 8th transistor is N-type TFT or N-type metal-oxide-semiconductor；The drive element of the grid output
High level drive signal.
The present invention also provides a kind of gate driving circuit, including above-mentioned drive element of the grid.
The present invention also provides a kind of display device, including above-mentioned gate driving circuit.
The present invention also provides a kind of driving method of above-mentioned drive element of the grid, including：
Charging stage, charging circuit receives the output signal of the output end of upper level drive element of the grid, and in the first control
The pull-down node is charged under the control of signal processed；
Drop-down stage, pull-down circuit drives the grid under the control of first control signal and the second control signal
Moving cell exports gate drive signal；
Pull-up stage, pull-up circuit enters under the control of first control signal to the output of the drive element of the grid
Row resets；
Pull-up holding stage, pull-up holding circuit makes the drive element of the grid under the control of first control signal
Output keep reset state.
Beneficial effects of the present invention：Drive element of the grid provided by the present invention, control signal quantity is few, so as to reduce
Interfering between control signal；Simultaneously the switching tube quantity that is used of the drive element of the grid and external lead wire quantity it is few and
Circuit complexity is low, so as to not only reduce production cost, and improves yield rate；In addition, the gate drive unit circuit
Simple structure, area occupied is small, beneficial to the design of narrow frame display.
Gate driving circuit provided by the present invention, by using above-mentioned drive element of the grid, makes the gate driving circuit
Turntable driving to grid is more stablized, while also reducing the production cost of the gate driving circuit, and makes the raster data model
Circuit is applied to narrow frame display.
Display device provided by the present invention, by using above-mentioned gate driving circuit, improves the aobvious of the display device
Show stability, while also reducing the production cost of the display device.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of drive element of the grid in the embodiment of the present invention 1；
Fig. 2 is the circuit diagram of drive element of the grid in the embodiment of the present invention 1 and 2；
Fig. 3 is the driver' s timing figure of drive element of the grid in the embodiment of the present invention 1；
Fig. 4 is the driver' s timing figure of drive element of the grid in the embodiment of the present invention 2.
Description of reference numerals therein：
1. charging circuit；2. pull-down circuit；3. pull-up circuit；4. holding circuit is pulled up；L1. charging stage；L2. drop-down rank
Section；L3. the stage is pulled up；L4. the holding stage is pulled up.
Specific embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific implementation
Mode is made into one to a kind of drive element of the grid provided by the present invention and its driving method, gate driving circuit and display device
Step is described in detail.
Embodiment 1：
The present embodiment provides a kind of drive element of the grid, as shown in figure 1, including charging circuit 1, pull-down circuit 2, pull-up electricity
Road 3 and pull-up holding circuit 4.Charging circuit 1 and the connection pull-down node of pull-down circuit 2 NET3；Pull-down circuit 2, the and of pull-up circuit 3
The pull-up connection pull-up node of holding circuit 4 NET1；Pull-up circuit 3 and pull-down circuit 2 connect the output end of drive element of the grid
output(n)；Pull-down circuit 2 is connected to the 5th node NET5 with pull-up holding circuit 4；Charging circuit 1, pull-up circuit 3 and on
Holding circuit 4 is drawn to connect the first potential end V1；Pull-down circuit 2 and pull-up circuit 3 connect the second potential end V2.Charging circuit 1 is used
In the output signal of the output end output (n-1) for receiving upper level drive element of the grid, and in the control of the first control signal CK
Pull-down node NET3 is charged under system.Pull-down circuit 2 is used for the control in the first control signal CK and the second control signal CB
Drive element of the grid is set to export gate drive signal under system.Pull-up circuit 3 is used under the control of the first control signal CK to grid
The output of pole driver element is resetted.Pull-up holding circuit 4 is used to make raster data model under the control of the first control signal CK
The output of unit keeps reset state.
Relative to existing drive element of the grid, the drive element of the grid control signal quantity is few, so as to reduce control
Interfering between signal；The switching tube quantity that is used of the drive element of the grid and external lead wire quantity is few and circuit simultaneously
Complexity is low, so as to not only reduce production cost, and improves yield rate；In addition, the gate drive unit circuit structure
Simply, area occupied is small, beneficial to the design of narrow frame display.
In the present embodiment, as shown in Fig. 2 charging circuit 1 includes first switch pipe M1 and the first electric capacity C1.First switch pipe
The grid of M1 connects the first control signal end, and first pole of first switch pipe M1 connects the output end of upper level drive element of the grid
Second pole of output (n-1), second pole of first switch pipe M1 and the first electric capacity C1 connects pull-down node NET3；First electric capacity
First pole of C1 connects the first potential end V1.
In the present embodiment, pull-down circuit 2 includes that second switch pipe M2, the 5th switching tube M5, the 3rd electric capacity C3 and the 8th are opened
Close pipe M8.The grid of second switch pipe M2 and the grid connection pull-down node NET3 of the 5th switching tube M5, second switch pipe M2's
First pole connects pull-up node NET1, and second pole of second switch pipe M2 connects the first control signal end.5th switching tube M5's
First pole connects the second control signal end, second pole of the 5th switching tube M5, second pole of the 3rd electric capacity C3, the 8th switching tube M8
Grid and pull-up holding circuit 4 be connected to the 5th node NET5.First pole of the 3rd electric capacity C3 and the of the 8th switching tube M8
One pole connects output end output (n) of drive element of the grid, and second pole of the 8th switching tube M8 connects the second potential end V2.
In the present embodiment, pull-up circuit 3 includes the 3rd switching tube M3, the second electric capacity C2 and the 4th switching tube M4.3rd opens
The grid for closing pipe M3 connects the first control signal end, and first pole of the 3rd switching tube M3 connects the second potential end V2, the 3rd switch
The grid connection pull-up node NET1 of second pole of pipe M3, first pole of the second electric capacity C2 and the 4th switching tube M4.Second electric capacity
Second pole of C2 and first pole of the 4th switching tube M4 connect the first potential end V1；The second pole connection grid of the 4th switching tube M4
Output end output (n) of driver element.
In the present embodiment, pull-up holding circuit 4 includes the 6th switching tube M6 and the 7th switching tube M7.6th switching tube M6's
First pole of grid connection pull-up node NET1, the 6th switching tube M6 connects the first potential end V1, the second of the 6th switching tube M6
Pole connects first pole of the 7th switching tube M7.The grid of the 7th switching tube M7 connects the first control signal end, the 7th switching tube M7
The second pole connect the 5th node NET5.
Compared to existing gate drive unit circuit, the circuit structure of drive element of the grid is simple in the present embodiment, opens
Close pipe quantity few, not only reduce production cost, and improve yield rate；Meanwhile, the drive element of the grid area occupied is small,
Narrow frame display is conducive to design.
In the present embodiment, the first potential end V1 is high potential, and the second potential end V2 is low potential；The first transistor M1,
Two-transistor M2, third transistor M3, the 4th transistor M4, the 5th transistor M5, the 6th transistor M6, the 7th transistor M7 and
8th transistor M8 is P-type TFT or p-type metal-oxide-semiconductor；Drive element of the grid exports low level drive signal.
Foregoing circuit structure based on drive element of the grid, the present embodiment also provides a kind of driving of the drive element of the grid
Method：As shown in figure 3, including：
Charging stage L1, charging circuit 1 receives the output letter of the output end output (n-1) of upper level drive element of the grid
Number, and pull-down node NET3 is charged under the control of the first control signal CK.
In the stage, output end output (n-1) the output low level drive signals of upper level drive element of the grid, first
Control signal CK is low level, and the second control signal CB is high level, and first switch pipe M1 and the 3rd switching tube M3 is turned on, pull-up
Node NET1 and pull-down node NET3 current potentials are pulled low, i.e., under the control of the first control signal CK, upper level raster data model list
The low level drive signal of unit's output charges to second pole (i.e. pull-down node NET3) of the first electric capacity C1；4th switching tube
M4 and the 5th switching tube M5 is turned on, the 8th switching tube M8 shut-offs, output end output (n) the output high level of drive element of the grid
Signal.In the stage, the first electric capacity C1 can play holding effect to the current potential of pull-down node NET3, so that pull-down node NET3
Current potential more stablize.
Drop-down stage L2, pull-down circuit 2 drives grid under the control of the first control signal CK and the second control signal CB
Moving cell exports gate drive signal.
In the stage, output end output (n-1) the output high level signals of upper level drive element of the grid, the first control
Signal CK is high level, and the second control signal CB is low level, and first switch pipe M1 and the 3rd switching tube M3 is turned off, pull-down node
NET3 keeps low level on last stage, the 5th switching tube M5 conductings, the 8th switching tube M8 conductings, the output of drive element of the grid
End output (n) output low level drive signal；Meanwhile, second switch pipe M2 conductings, pull-up node NET1 current potentials are driven high, the
Four switching tube M4 are turned off.In the stage, the 3rd electric capacity C3 can play holding effect to the current potential of the 5th node NET5, so that the
The current potential of five node NET5 is more stablized.
Pull-up stage L3, pull-up circuit 3 is carried out under the control of the first control signal CK to the output of drive element of the grid
Reset.
In the stage, output end output (n-1) the output high level signals of upper level drive element of the grid, the first control
Signal CK is low level, and the second control signal CB is high level, and first switch pipe M1 and the 3rd switching tube M3 is turned on, pull-down node
NET3 current potentials are driven high, and the 5th switching tube M5 shut-offs, pull-up node NET1 current potentials are pulled low, the 4th switching tube M4 conductings, grid
Output end output (n) the output high level signal of driver element；Meanwhile, the 6th switching tube M6 and the 7th switching tube M7 is turned on,
The current potential of the 5th node NET5 is drawn high, the 8th switching tube M8 shut-offs.In the stage, the second electric capacity C2 can be to pull-up node
The current potential of NET1 plays holding effect, so that the current potential of pull-up node NET1 is more stablized.
Pull-up holding stage L4, pull-up holding circuit 4 makes drive element of the grid under the control of the first control signal CK
Output keeps reset state.
In the stage, output end output (n-1) the output high level signals of upper level drive element of the grid, the first control
Signal CK is high level, and the second control signal CB is low level, and pull-down node NET3 keeps high level, the 5th switching tube M5 to close
Disconnected, pull-up node NET1 keeps low level, and the 4th switching tube M4 continues to turn on, output end output (n) of drive element of the grid
Output high level signal；Meanwhile, the current potential of the 5th node NET5 keeps high level, the 8th switching tube M8 to disconnect.
Each stage of a frame in thereafter, output end output (n) of drive element of the grid all exports high level signal,
I.e. in each stage of a frame in other drive element of the grid driving, output end output (n) of the drive element of the grid is defeated
Go out high level signal, so as to avoid driving of the drive element of the grid to other drive element of the grid from interfering.
Embodiment 2：
The present embodiment provides a kind of drive element of the grid, and unlike embodiment 1, the first potential end is low potential,
Second potential end is high potential；The first transistor, transistor seconds, third transistor, the 4th transistor, the 5th transistor,
Six transistors, the 7th transistor and the 8th transistor are N-type TFT or N-type metal-oxide-semiconductor；Drive element of the grid output is high
Level drive signal.
Other circuit structures of drive element of the grid are in the same manner as in Example 1 in the present embodiment, and here is omitted.
Correspondingly, the driving method of the drive element of the grid is unlike embodiment 1：As shown in Figure 2 and Figure 4,
Charging stage L1, charging circuit 1 receives the output letter of the output end output (n-1) of upper level drive element of the grid
Number, and pull-down node NET3 is charged under the control of the first control signal CK.
In the stage, output end output (n-1) the output high level drive signals of upper level drive element of the grid, first
Control signal CK is high level, and the second control signal CB is low level, and first switch pipe M1 and the 3rd switching tube M3 is turned on, pull-up
Node NET1 and pull-down node NET3 current potentials are driven high, i.e., under the control of the first control signal CK, upper level raster data model list
The high level drive signal of unit's output charges to second pole (i.e. pull-down node NET3) of the first electric capacity C1；4th switching tube
M4 and the 5th switching tube M5 is turned on, the 8th switching tube M8 shut-offs, output end output (n) the output low level of drive element of the grid
Signal.In the stage, the first electric capacity C1 can play holding effect to the current potential of pull-down node NET3, so that pull-down node NET3
Current potential more stablize.
Drop-down stage L2, pull-down circuit 2 drives grid under the control of the first control signal CK and the second control signal CB
Moving cell exports gate drive signal.
In the stage, output end output (n-1) the output low level signals of upper level drive element of the grid, the first control
Signal CK is low level, and the second control signal CB is high level, and first switch pipe M1 and the 3rd switching tube M3 is turned off, pull-down node
NET3 keeps high level on last stage, the 5th switching tube M5 conductings, the 8th switching tube M8 conductings, the output of drive element of the grid
End output (n) output high level drive signal；Meanwhile, second switch pipe M2 conductings, pull-up node NET1 current potentials are pulled low, the
Four switching tube M4 are turned off.In the stage, the 3rd electric capacity C3 can play holding effect to the current potential of the 5th node NET5, so that the
The current potential of five node NET5 is more stablized.
Pull-up stage L3, pull-up circuit 3 is carried out under the control of the first control signal CK to the output of drive element of the grid
Reset.
In the stage, output end output (n-1) the output low level signals of upper level drive element of the grid, the first control
Signal CK is high level, and the second control signal CB is low level, and first switch pipe M1 and the 3rd switching tube M3 is turned on, pull-down node
NET3 current potentials are pulled low, and the 5th switching tube M5 shut-offs, pull-up node NET1 current potentials are driven high, the 4th switching tube M4 conductings, grid
Output end output (n) the output low level signal of driver element；Meanwhile, the 6th switching tube M6 and the 7th switching tube M7 is turned on,
The current potential of the 5th node NET5 is dragged down, the 8th switching tube M8 shut-offs.In the stage, the second electric capacity C2 can be to pull-up node
The current potential of NET1 plays holding effect, so that the current potential of pull-up node NET1 is more stablized.
Pull-up holding stage L4, pull-up holding circuit 4 makes drive element of the grid under the control of the first control signal CK
Output keeps reset state.
In the stage, output end output (n-1) the output low level signals of upper level drive element of the grid, the first control
Signal CK is low level, and the second control signal CB is high level, and pull-down node NET3 keeps low level, and the 5th switching tube M5 is closed
Disconnected, pull-up node NET1 keeps high level, the 4th switching tube M4 to continue to turn on, output end output (n) of drive element of the grid
Output low level signal；Meanwhile, the current potential of the 5th node NET5 keeps low level, and the 8th switching tube M8 disconnects.
Each stage of a frame in thereafter, output end output (n) of drive element of the grid all exports low level signal,
I.e. in each stage of a frame in other drive element of the grid driving, output end output (n) of the drive element of the grid is defeated
Go out low level signal, so as to avoid driving of the drive element of the grid to other drive element of the grid from interfering.
The beneficial effect of embodiment 1-2：Drive element of the grid control signal quantity provided in embodiment 1-2 is few, from
And interfering between reducing control signal；The drive element of the grid is used simultaneously switching tube quantity and external lead wire
Quantity is few and circuit complexity is low, so as to not only reduce production cost, and improves yield rate；In addition, the raster data model
Element circuit simple structure, area occupied is small, beneficial to the design of narrow frame display.
Embodiment 3：
The present embodiment provides a kind of gate driving circuit, including the drive element of the grid in embodiment 1 or 2.
By using the drive element of the grid in embodiment 1 or 2, make the gate driving circuit to the turntable driving of grid more
Plus stabilization, while also reducing the production cost of the gate driving circuit, and make the gate driving circuit aobvious suitable for narrow frame
Show device.
Embodiment 4：
The present embodiment provides a kind of display device, including the gate driving circuit in embodiment 3.
By using the gate driving circuit in embodiment 3, the exhibit stabilization of the display device being improve, while also dropping
The low production cost of the display device.
Display device provided by the present invention can be liquid crystal panel, AMOLED (active matrix organic light-emitting diode) face
Plate, LCD TV, AMOLED (active matrix organic light-emitting diode) TV, display, mobile phone, navigator etc. are any with aobvious
Show the product or part of function.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary implementation for using
Mode, but the invention is not limited in this.For those skilled in the art, essence of the invention is not being departed from
In the case of god and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of drive element of the grid, it is characterised in that keep electricity including charging circuit, pull-down circuit, pull-up circuit and pull-up
Road；The charging circuit and pull-down circuit connection pull-down node；The pull-down circuit, the pull-up circuit and the pull-up
Holding circuit connects pull-up node；The pull-up circuit and the pull-down circuit connect the output end of the drive element of the grid；
The pull-down circuit is connected to the 5th node with the pull-up holding circuit；The charging circuit, the pull-up circuit and described
Pull-up holding circuit connects the first potential end；The pull-down circuit and the pull-up circuit connect the second potential end；
The charging circuit is used for the output signal of the output end for receiving upper level drive element of the grid, and in the first control signal
Control under the pull-down node is charged；
The pull-down circuit is used to make the raster data model list under the control of first control signal and the second control signal
Unit's output gate drive signal；
The output that the pull-up circuit is used for the drive element of the grid under the control of first control signal is answered
Position；
The pull-up holding circuit is used to protect under the control of first control signal output of the drive element of the grid
Hold reset state.
2. drive element of the grid according to claim 1, it is characterised in that the charging circuit include first switch pipe and
First electric capacity；
The grid of the first switch pipe connects the first control signal end, the first pole connection described upper of the first switch pipe
Under the second pole connection of the output end of level drive element of the grid, the second pole of the first switch pipe and first electric capacity is described
Draw node；First pole of first electric capacity connects first potential end.
3. drive element of the grid according to claim 2, it is characterised in that the pull-down circuit include second switch pipe,
5th switching tube, the 3rd electric capacity and the 8th switching tube；
The grid of the grid of the second switch pipe and the 5th switching tube connects the pull-down node, the second switch pipe
The first pole connect the pull-up node, the second pole of the second switch pipe connects first control signal end；
First pole of the 5th switching tube connects the second control signal end, the second pole, the described 3rd of the 5th switching tube
Second pole of electric capacity, the grid of the 8th switching tube and the pull-up holding circuit are connected to the 5th node；
First pole of the 3rd electric capacity and the first pole of the 8th switching tube connect the output end of the drive element of the grid,
Second pole of the 8th switching tube connects second potential end.
4. drive element of the grid according to claim 3, it is characterised in that the pull-up circuit include the 3rd switching tube,
Second electric capacity and the 4th switching tube；
The grid of the 3rd switching tube connects first control signal end, and the first pole connection of the 3rd switching tube is described
Second potential end, the grid of second pole, the first pole of second electric capacity and the 4th switching tube of the 3rd switching tube
Connect the pull-up node；
First pole of the second pole of second electric capacity and the 4th switching tube connects first potential end；Described 4th opens
The second pole for closing pipe connects the output end of the drive element of the grid.
5. drive element of the grid according to claim 4, it is characterised in that the pull-up holding circuit includes the 6th switch
Pipe and the 7th switching tube；
The grid of the 6th switching tube connects the pull-up node, the first pole connection first electricity of the 6th switching tube
Position end, the second pole of the 6th switching tube connects the first pole of the 7th switching tube；
The grid of the 7th switching tube connects first control signal end, and the second pole connection of the 7th switching tube is described
5th node.
6. drive element of the grid according to claim 5, it is characterised in that first potential end is high potential, described
Second potential end is low potential；The first transistor, the transistor seconds, the third transistor, the 4th crystal
It is brilliant that pipe, the 5th transistor, the 6th transistor, the 7th transistor and the 8th transistor are p-type film
Body pipe or p-type metal-oxide-semiconductor；The drive element of the grid exports low level drive signal.
7. drive element of the grid according to claim 5, it is characterised in that first potential end is low potential, described
Second potential end is high potential；The first transistor, the transistor seconds, the third transistor, the 4th crystal
It is brilliant that pipe, the 5th transistor, the 6th transistor, the 7th transistor and the 8th transistor are N-type film
Body pipe or N-type metal-oxide-semiconductor；The drive element of the grid exports high level drive signal.
8. a kind of gate driving circuit, it is characterised in that including the drive element of the grid described in claim 1-7 any one.
9. a kind of display device, it is characterised in that including the gate driving circuit described in claim 8.
10. the driving method of a kind of drive element of the grid as described in claim 1-7 any one, it is characterised in that including：
Charging stage, charging circuit receives the output signal of the output end of upper level drive element of the grid, and in the first control letter
Number control under the pull-down node is charged；
Drop-down stage, pull-down circuit makes the raster data model list under the control of first control signal and the second control signal
Unit's output gate drive signal；
Pull-up stage, pull-up circuit is answered the output of the drive element of the grid under the control of first control signal
Position；
Pull-up holding stage, pull-up holding circuit makes the defeated of the drive element of the grid under the control of first control signal
Go out to keep reset state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067128.3A CN106782336B (en) | 2017-02-07 | 2017-02-07 | Drive element of the grid and its driving method, gate driving circuit and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067128.3A CN106782336B (en) | 2017-02-07 | 2017-02-07 | Drive element of the grid and its driving method, gate driving circuit and display device |
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| Publication Number | Publication Date |
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| CN106782336A true CN106782336A (en) | 2017-05-31 |
| CN106782336B CN106782336B (en) | 2019-01-22 |
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| CN201710067128.3A Active CN106782336B (en) | 2017-02-07 | 2017-02-07 | Drive element of the grid and its driving method, gate driving circuit and display device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079243A (en) * | 2006-05-25 | 2007-11-28 | 三菱电机株式会社 | Shift register circuit and image display apparatus equipped with the same |
| CN101944344A (en) * | 2010-09-09 | 2011-01-12 | 昆山龙腾光电有限公司 | Grid drive circuit |
| CN102779494A (en) * | 2012-03-29 | 2012-11-14 | 北京京东方光电科技有限公司 | Gate driving circuit, method and liquid crystal display |
| CN102867475A (en) * | 2012-09-13 | 2013-01-09 | 京东方科技集团股份有限公司 | Shifting register unit, grid driving circuit and display device |
| WO2013026387A1 (en) * | 2011-08-22 | 2013-02-28 | 北京京东方光电科技有限公司 | Gate integrated drive circuit, shift register and display screen |
| CN103258495A (en) * | 2013-05-07 | 2013-08-21 | 京东方科技集团股份有限公司 | Shift storage unit, shift register and display device |
| CN203217931U (en) * | 2013-03-25 | 2013-09-25 | 北京京东方光电科技有限公司 | Shifting register, gate driving circuit and display device |
| CN104299652A (en) * | 2014-10-20 | 2015-01-21 | 京东方科技集团股份有限公司 | Shifting register and driving method thereof as well as grid electrode driving circuit and display device |
-
2017
- 2017-02-07 CN CN201710067128.3A patent/CN106782336B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079243A (en) * | 2006-05-25 | 2007-11-28 | 三菱电机株式会社 | Shift register circuit and image display apparatus equipped with the same |
| CN101944344A (en) * | 2010-09-09 | 2011-01-12 | 昆山龙腾光电有限公司 | Grid drive circuit |
| WO2013026387A1 (en) * | 2011-08-22 | 2013-02-28 | 北京京东方光电科技有限公司 | Gate integrated drive circuit, shift register and display screen |
| CN102779494A (en) * | 2012-03-29 | 2012-11-14 | 北京京东方光电科技有限公司 | Gate driving circuit, method and liquid crystal display |
| CN102867475A (en) * | 2012-09-13 | 2013-01-09 | 京东方科技集团股份有限公司 | Shifting register unit, grid driving circuit and display device |
| CN203217931U (en) * | 2013-03-25 | 2013-09-25 | 北京京东方光电科技有限公司 | Shifting register, gate driving circuit and display device |
| CN103258495A (en) * | 2013-05-07 | 2013-08-21 | 京东方科技集团股份有限公司 | Shift storage unit, shift register and display device |
| CN104299652A (en) * | 2014-10-20 | 2015-01-21 | 京东方科技集团股份有限公司 | Shifting register and driving method thereof as well as grid electrode driving circuit and display device |
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| Publication number | Publication date |
|---|---|
| CN106782336B (en) | 2019-01-22 |
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