CN106782336B - 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
- Publication number
- CN106782336B CN106782336B CN201710067128.3A CN201710067128A CN106782336B CN 106782336 B CN106782336 B CN 106782336B CN 201710067128 A CN201710067128 A CN 201710067128A CN 106782336 B CN106782336 B CN 106782336B
- Authority
- CN
- China
- Prior art keywords
- pull
- grid
- switching tube
- circuit
- drive element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
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 to receive the output signal of the output end of upper level drive element of the grid, and charges under the control of first control signal to pull-down node；Pull-down circuit under the control of first control signal and second control signal for making drive element of the grid export gate drive signal；Pull-up circuit is for resetting the output of drive element of the grid under the control of first control signal；Pull-up holding circuit is used to make under the control of first control signal the output of drive element of the grid to keep reset state.Drive element of the grid control number of signals is few, reduces interfering with each other between controlling signal；Switching tube quantity and external lead wire quantity used by the drive element of the grid are few and circuit complexity is low, not only reduce production cost, and improve yield rate.
Description
Technical field
The present invention relates to field of display technology, and in particular, to a kind of drive element of the grid and its driving method, grid drive
Dynamic circuit and display device.
Background technique
Currently, low temperature polycrystalline silicon (Low Temperature Poly-Silicon, LTPS) technology is widely used in
In the driving circuit of AMOLED, the upper driving circuit of peripheral drive circuit and screen including display screen.Due to traditional complementary
The production of (Complementary Metal Oxide Semiconductor, CMOS) low-temperature polysilicon silicon switching tube (LTPS-TFT)
Complex process, used complementary low-temperature polysilicon silicon switching tube quantity is usually more, this produces the driving circuit of AMOLED
Expensive, yield rate is low.
In existing AMOLED driving circuit, in single gate scan control circuit unit, generally require using at least four
Clock signal controls the gated sweep control circuit unit, and each gated sweep control circuit unit 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 for providing clock signal more complicated.
Summary of the invention
The present invention is directed to the above-mentioned technical problems in the prior art, provides a kind of drive element of the grid and its driving side
Method, gate driving circuit and display device.It is few that the drive element of the grid controls number of signals, to reduce between control signal
Interfere with each other；Switching tube quantity and external lead wire quantity used by the drive element of the grid is few simultaneously and circuit complexity
It is low, to not only reduce production cost, and improve yield rate；In addition, the gate drive unit circuit structure is simple, account for
It is small with area, it is conducive to narrow frame display and designs.
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 connects pull-down node with the pull-down circuit；The pull-down circuit, the pull-up circuit and the pull-up
Holding circuit connects pull-up node；The pull-up circuit connects the output end of the drive element of the grid with the pull-down circuit；
The pull-down circuit and the pull-up holding circuit are connected to the 5th node；The charging circuit, the pull-up circuit and described
It pulls up holding circuit and connects the first potential end；The pull-down circuit connects the second potential end with the pull-up circuit；
The charging circuit is used to receive the output signal of the output end of upper level drive element of the grid, and in the first control
It charges under the control of signal to the pull-down node；
The pull-down circuit is for driving the grid under the control of the first control signal and second control signal
Moving cell exports gate drive signal；
The pull-up circuit be used under the control of the first control signal to the output of the drive element of the grid into
Row resets；
The pull-up holding circuit under the control of the first control signal for making the defeated of the drive element of the grid
Reset state is kept out.
Preferably, the charging circuit includes first switch tube and first capacitor；
The grid of the first switch tube connects first control signal end, described in the first pole connection of the first switch tube
The output end of upper level drive element of the grid, the second pole of the first switch tube connect institute with the second pole of the first capacitor
State pull-down node；First pole of the first capacitor connects first potential end.
Preferably, the pull-down circuit includes second switch, the 5th switching tube, third capacitor and the 8th switching tube；
The grid of the second switch connects the pull-down node with the grid of the 5th switching tube, and described second opens
The first pole for closing pipe connects the pull-up node, and the second pole of the second switch connects the first control signal end；
First pole of the 5th switching tube connects second control signal end, the second pole of the 5th switching tube, described
Second pole of third capacitor, the grid of the 8th switching tube and the pull-up holding circuit are connected to the 5th node；
First pole of the third capacitor connects the defeated of the drive element of the grid with the first pole of the 8th switching tube
Second pole of outlet, the 8th switching tube connects second potential end.
Preferably, the pull-up circuit includes third switching tube, the second capacitor and the 4th switching tube；
The grid of the third switching tube connects the first control signal end, the first pole connection of the third switching tube
Second potential end, the second pole of the third switching tube, the first pole of second capacitor and the 4th switching tube
Grid connects the pull-up node；
Second pole of second capacitor connects first potential end with the first pole of the 4th switching tube；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 6th switching tube connects the pull-up node, the first pole connection of the 6th switching tube described the
Second pole of one potential end, the 6th switching tube connects the first pole of the 7th switching tube；
The grid of 7th switching tube connects the 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 switch tube,
The second switch, the third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, institute
Stating the 7th switching tube and the 8th switching tube 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 switch tube,
The second switch, the third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, institute
Stating the 7th switching tube and the 8th switching tube is N-type TFT or N-type metal-oxide-semiconductor；The drive element of the grid output
High level driving signal.
The present invention also provides a kind of gate driving circuits, including above-mentioned drive element of the grid.
The present invention also provides a kind of display devices, including above-mentioned gate driving circuit.
The present invention also provides a kind of driving methods of above-mentioned drive element of the grid, comprising:
Charging stage, charging circuit receive the output signal of the output end of upper level drive element of the grid, and in the first control
It charges under the control of signal processed to the pull-down node；
Drop-down stage, pull-down circuit drive the grid under the control of the first control signal and second control signal
Moving cell exports gate drive signal；
The pull-up stage, pull-up circuit under the control of the first control signal to the output of the drive element of the grid into
Row resets；
The holding stage is pulled up, pull-up holding circuit makes the drive element of the grid under the control of the first control signal
Output keep reset state.
Beneficial effects of the present invention: drive element of the grid provided by the present invention, control number of signals is few, to reduce
Interfering with each other between control signal；Simultaneously switching tube quantity and external lead wire quantity used by the drive element of the grid it is few and
Circuit complexity is low, to not only reduce production cost, and improves yield rate；In addition, the gate drive unit circuit
Structure is simple, and area occupied is small, is conducive to narrow frame display and designs.
Gate driving circuit provided by the present invention makes the gate driving circuit by using above-mentioned drive element of the grid
It is more stable to the turntable driving of grid, while the production cost of the gate driving circuit is also reduced, and make the gate driving
Circuit is suitable for narrow frame display.
Display device provided by the present invention improves the aobvious of the display device by using above-mentioned gate driving circuit
Show stability, while also reducing the production cost of the display device.
Detailed description of the invention
Fig. 1 is the circuit diagram 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 symbols therein:
1. charging circuit；2. pull-down circuit；3. pull-up circuit；4. pulling up holding circuit；L1. the charging stage；L2. rank is pulled down
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 solution of the present invention, with reference to the accompanying drawing and it is embodied
Mode makees into one a kind of drive element of the grid provided by the present invention and its driving method, gate driving circuit and display device
Step detailed description.
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 pull-down circuit 2 connect pull-down node NET3；Pull-down circuit 2,3 and of pull-up circuit
It pulls up holding circuit 4 and connects pull-up node 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 and pull-up holding circuit 4 are connected to the 5th node NET5；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 for the output end output (n-1) for receiving upper level drive element of the grid, and in the control of first control signal CK
It charges under system to pull-down node NET3.Pull-down circuit 2 is used for the control in first control signal CK and 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 first control signal CK to grid
The output of pole driving unit is resetted.Pull-up holding circuit 4 is for making gate driving under the control of first control signal CK
The output of unit keeps reset state.
Relative to existing drive element of the grid, drive element of the grid control number of signals is few, to reduce control
Interfering with each other between signal；Switching tube quantity and external lead wire quantity used by the drive element of the grid is few simultaneously and circuit
Complexity is low, to not only reduce production cost, and improves yield rate；In addition, the gate drive unit circuit structure
Simply, area occupied is small, is conducive to narrow frame display and designs.
In the present embodiment, as shown in Fig. 2, charging circuit 1 includes first switch tube M1 and first capacitor C1.First switch tube
The grid of M1 connects first control signal end, the output end of the first pole connection upper level drive element of the grid of first switch tube M1
The second pole of output (n-1), first switch tube M1 connect pull-down node NET3 with the second pole of first capacitor C1；First capacitor
The first pole of C1 connects the first potential end V1.
In the present embodiment, pull-down circuit 2 is opened including second switch M2, the 5th switching tube M5, third capacitor C3 and the 8th
Close pipe M8.The grid of the grid of second switch M2 and the 5th switching tube M5 connect pull-down node NET3, second switch M2's
First pole connects pull-up node NET1, and the second pole of second switch M2 connects first control signal end.5th switching tube M5's
First pole connects second control signal end, the second pole of the 5th switching tube M5, the second pole of third capacitor C3, the 8th switching tube M8
Grid and pull-up holding circuit 4 be connected to the 5th node NET5.The of the first pole of third capacitor C3 and the 8th switching tube M8
One pole connects the output end output (n) of drive element of the grid, and the second pole of the 8th switching tube M8 connects the second potential end V2.
In the present embodiment, pull-up circuit 3 includes third switching tube M3, the second capacitor C2 and the 4th switching tube M4.Third is opened
The grid for closing pipe M3 connects first control signal end, and the first pole of third switching tube M3 connects the second potential end V2, third switch
The second pole of pipe M3, the second capacitor C2 the first pole connect pull-up node NET1 with the grid of the 4th switching tube M4.Second capacitor
The second pole of C2 connects the first potential end V1 with the first pole of the 4th switching tube M4；The second pole of 4th switching tube M4 connects grid
The output end output (n) of driving unit.
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
Grid connects pull-up node NET1, and the first pole of the 6th switching tube M6 connects the first potential end V1, and the second of the 6th switching tube M6
Pole connects the first pole of the 7th switching tube M7.The grid of 7th switching tube M7 connects 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
It is few to close pipe quantity, not only reduces production cost, and improve yield rate；Meanwhile the drive element of the grid area occupied is small,
Be conducive to the design of narrow frame display.
In the present embodiment, the first potential end V1 is high potential, and the second potential end V2 is low potential；First switch tube M1,
Two switching tube M2, third switching tube M3, the 4th switching tube M4, the 5th switching tube M5, the 6th switching tube M6, the 7th switching tube M7 and
8th switching tube 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 provide a kind of driving of drive element of the grid
Method: as shown in Figure 3, comprising:
Charging stage L1, charging circuit 1 receive the output letter of the output end output (n-1) of upper level drive element of the grid
Number, and charge under the control of first control signal CK to pull-down node NET3.
At this stage, output end output (n-1) the output low level drive signal of upper level drive element of the grid, first
Control signal CK is low level, and second control signal CB is high level, first switch tube M1 and third switching tube M3 conducting, pull-up
Node NET1 and pull-down node NET3 current potential are pulled low, i.e., under the control of first control signal CK, upper level gate driving list
The low level drive signal of member output charges to the second pole (i.e. pull-down node NET3) of first capacitor C1；4th switching tube
The output end output (n) of M4 and the 5th switching tube M5 conducting, the 8th switching tube M8 shutdown, drive element of the grid exports high level
Signal.At this stage, first capacitor C1 can play the role of holding to the current potential of pull-down node NET3, so that pull-down node NET3
Current potential it is more stable.
Drop-down stage L2, pull-down circuit 2 drive grid under the control of first control signal CK and second control signal CB
Moving cell exports gate drive signal.
At this stage, the output end output (n-1) of upper level drive element of the grid exports high level signal, the first control
Signal CK is high level, and second control signal CB is low level, first switch tube M1 and third switching tube M3 shutdown, pull-down node
NET3 keeps low level on last stage, the 5th switching tube M5 conducting, the 8th switching tube M8 conducting, the output of drive element of the grid
Output (n) is held to export low level drive signal；Meanwhile second switch M2 is connected, pull-up node NET1 current potential is raised, the
Four switching tube M4 shutdown.At this stage, third capacitor C3 can play the role of holding to the current potential of the 5th node NET5, so that the
The current potential of five node NET5 is more stable.
Pull-up stage L3, pull-up circuit 3 carry out the output of drive element of the grid under the control of first control signal CK
It resets.
At this stage, the output end output (n-1) of upper level drive element of the grid exports high level signal, the first control
Signal CK is low level, and second control signal CB is high level, first switch tube M1 and third switching tube M3 conducting, pull-down node
NET3 current potential is raised, and the 5th switching tube M5 shutdown, pull-up node NET1 current potential is pulled low, the 4th switching tube M4 conducting, grid
The output end output (n) of driving unit exports high level signal；Meanwhile the 6th switching tube M6 and the 7th switching tube M7 conducting,
The current potential of 5th node NET5 is drawn high, the 8th switching tube M8 shutdown.At this stage, the second capacitor C2 can be to pull-up node
The current potential of NET1 plays the role of holding, so that the current potential of pull-up node NET1 is more stable.
Holding stage L4 is pulled up, pull-up holding circuit 4 makes drive element of the grid under the control of first control signal CK
Output keeps reset state.
At this stage, the output end output (n-1) of upper level drive element of the grid exports high level signal, the first control
Signal CK is high level, and second control signal CB is low level, and pull-down node NET3 keeps high level, and the 5th switching tube M5 is closed
Disconnected, pull-up node NET1 keeps low level, and the 4th switching tube M4 continues to be connected, the output end output (n) of drive element of the grid
Export high level signal；Meanwhile the 5th node NET5 current potential keep high level, the 8th switching tube M8 disconnect.
Each stage in this later frame, the output end output (n) of drive element of the grid export high level signal,
Each stage that other drive element of the grid drive i.e. in a frame, the output end output (n) of the drive element of the grid are defeated
High level signal out, so that the drive element of the grid be avoided to interfere the driving of other drive element of the grid.
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；First switch tube, second switch, third switching tube, the 4th switching tube, the 5th switching tube,
Six switching tubes, the 7th switching tube and the 8th switching tube 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 details are not described herein again.
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 receive the output letter of the output end output (n-1) of upper level drive element of the grid
Number, and charge under the control of first control signal CK to pull-down node NET3.
At this stage, output end output (n-1) the output high level driving signal of upper level drive element of the grid, first
Control signal CK is high level, and second control signal CB is low level, first switch tube M1 and third switching tube M3 conducting, pull-up
Node NET1 and pull-down node NET3 current potential are raised, i.e., under the control of first control signal CK, upper level gate driving list
The high level driving signal of member output charges to the second pole (i.e. pull-down node NET3) of first capacitor C1；4th switching tube
The output end output (n) of M4 and the 5th switching tube M5 conducting, the 8th switching tube M8 shutdown, drive element of the grid exports low level
Signal.At this stage, first capacitor C1 can play the role of holding to the current potential of pull-down node NET3, so that pull-down node NET3
Current potential it is more stable.
Drop-down stage L2, pull-down circuit 2 drive grid under the control of first control signal CK and second control signal CB
Moving cell exports gate drive signal.
At this stage, the output end output (n-1) of upper level drive element of the grid exports low level signal, the first control
Signal CK is low level, and second control signal CB is high level, first switch tube M1 and third switching tube M3 shutdown, pull-down node
NET3 keeps high level on last stage, the 5th switching tube M5 conducting, the 8th switching tube M8 conducting, the output of drive element of the grid
Output (n) is held to export high level driving signal；Meanwhile second switch M2 is connected, pull-up node NET1 current potential is pulled low, the
Four switching tube M4 shutdown.At this stage, third capacitor C3 can play the role of holding to the current potential of the 5th node NET5, so that the
The current potential of five node NET5 is more stable.
Pull-up stage L3, pull-up circuit 3 carry out the output of drive element of the grid under the control of first control signal CK
It resets.
At this stage, the output end output (n-1) of upper level drive element of the grid exports low level signal, the first control
Signal CK is high level, and second control signal CB is low level, first switch tube M1 and third switching tube M3 conducting, pull-down node
NET3 current potential is pulled low, and the 5th switching tube M5 shutdown, pull-up node NET1 current potential is raised, the 4th switching tube M4 conducting, grid
The output end output (n) of driving unit exports low level signal；Meanwhile the 6th switching tube M6 and the 7th switching tube M7 conducting,
The current potential of 5th node NET5 is dragged down, the 8th switching tube M8 shutdown.At this stage, the second capacitor C2 can be to pull-up node
The current potential of NET1 plays the role of holding, so that the current potential of pull-up node NET1 is more stable.
Holding stage L4 is pulled up, pull-up holding circuit 4 makes drive element of the grid under the control of first control signal CK
Output keeps reset state.
At this stage, the output end output (n-1) of upper level drive element of the grid exports low level signal, the first control
Signal CK is low level, and 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, and the 4th switching tube M4 continues to be connected, the output end output (n) of drive element of the grid
Export low level signal；Meanwhile the 5th node NET5 current potential keep low level, the 8th switching tube M8 disconnect.
Each stage in this later frame, the output end output (n) of drive element of the grid export low level signal,
Each stage that other drive element of the grid drive i.e. in a frame, the output end output (n) of the drive element of the grid are defeated
Low level signal out, so that the drive element of the grid be avoided to interfere the driving of other drive element of the grid.
Embodiment 1-2's the utility model has the advantages that drive element of the grid provided in embodiment 1-2 control number of signals it is few, from
And reduce interfering with each other between control signal；Switching tube quantity and external lead wire used by the drive element of the grid simultaneously
Quantity is few and circuit complexity is low, to not only reduce production cost, and improves yield rate；In addition, the gate driving
Element circuit structure is simple, and area occupied is small, is conducive to narrow frame display and designs.
Embodiment 3:
The present embodiment provides a kind of gate driving circuits, 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
Add stabilization, while also reducing the production cost of the gate driving circuit, and keeps the gate driving circuit aobvious suitable for narrow frame
Show device.
Embodiment 4:
The present embodiment provides a kind of display devices, including the gate driving circuit in embodiment 3.
By using the gate driving circuit in embodiment 3, the exhibit stabilization of the display device is improved, while also being dropped
The low production cost of the display device.
Display device provided by the present invention can be liquid crystal display 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 products or components of function.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, 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, which is characterized in that keep electricity including charging circuit, pull-down circuit, pull-up circuit and pull-up
Road；The charging circuit connects pull-down node with the pull-down circuit；The pull-down circuit, the pull-up circuit and the pull-up
Holding circuit connects pull-up node；The pull-up circuit connects the output end of the drive element of the grid with the pull-down circuit；
The pull-down circuit and the pull-up holding circuit are connected to the 5th node；The charging circuit, the pull-up circuit and described
It pulls up holding circuit and connects the first potential end；The pull-down circuit connects the second potential end with the pull-up circuit；
The charging circuit is used to receive the output signal of the output end of upper level drive element of the grid, and in first control signal
Control under charge to the pull-down node；
The pull-down circuit under the control of the first control signal and second control signal for making the gate driving list
Member output gate drive signal；
The pull-up circuit is for answering the output of the drive element of the grid under the control of the first control signal
Position；
The pull-up holding circuit is for protecting the output of the drive element of the grid under the control of the first control signal
Hold reset state.
2. drive element of the grid according to claim 1, which is characterized in that the charging circuit include first switch tube and
First capacitor；
The grid of the first switch tube connects first control signal end, the first pole connection described upper one of the first switch tube
Grade drive element of the grid output end, the second pole of the first switch tube connected with the second pole of the first capacitor it is described under
Draw node；First pole of the first capacitor connects first potential end.
3. drive element of the grid according to claim 2, which is characterized in that the pull-down circuit include second switch,
5th switching tube, third capacitor and the 8th switching tube；
The grid of the second switch connects the pull-down node, the second switch with the grid of the 5th switching tube
The first pole connect the pull-up node, the second pole of the second switch connects the first control signal end；
First pole of the 5th switching tube connects second control signal end, the second pole of the 5th switching tube, the third
Second pole of capacitor, the grid of the 8th switching tube and the pull-up holding circuit are connected to the 5th node；
First pole of the third capacitor connects the output end of the drive element of the grid with the first pole of the 8th switching tube,
Second pole of the 8th switching tube connects second potential end.
4. drive element of the grid according to claim 3, which is characterized in that the pull-up circuit include third switching tube,
Second capacitor and the 4th switching tube；
The grid of the third switching tube connects the first control signal end, described in the first pole connection of the third switching tube
Second potential end, the second pole of the third switching tube, the first pole of second capacitor and the 4th switching tube grid
Connect the pull-up node；
Second pole of second capacitor connects first potential end with the first pole of the 4th switching tube；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, which is characterized in that the pull-up holding circuit includes the 6th switch
Pipe and the 7th switching tube；
The grid of 6th switching tube connects the pull-up node, the first pole connection of the 6th switching tube first electricity
Position end, the second pole of the 6th switching tube connects the first pole of the 7th switching tube；
The grid of 7th switching tube connects the first control signal end, described in the second pole connection of the 7th switching tube
5th node.
6. drive element of the grid according to claim 5, which is characterized in that first potential end is high potential, described
Second potential end is low potential；The first switch tube, the second switch, the third switching tube, the 4th switch
Pipe, the 5th switching tube, the 6th switching tube, the 7th switching tube and the 8th switching tube are that p-type film is brilliant
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, which is characterized in that first potential end is low potential, described
Second potential end is high potential；The first switch tube, the second switch, the third switching tube, the 4th switch
Pipe, the 5th switching tube, the 6th switching tube, the 7th switching tube and the 8th switching tube are that N-type film is brilliant
Body pipe or N-type metal-oxide-semiconductor；The drive element of the grid exports high level driving signal.
8. a kind of gate driving circuit, which is characterized in that including drive element of the grid described in claim 1-7 any one.
9. a kind of display device, which is characterized in that including gate driving circuit according to any one of claims 8.
10. a kind of driving method of the drive element of the grid as described in claim 1-7 any one characterized by comprising
Charging stage, charging circuit receive the output signal of the output end of upper level drive element of the grid, and in the first control letter
Number control under charge to the pull-down node；
Drop-down stage, pull-down circuit make the gate driving list under the control of the first control signal and second control signal
Member output gate drive signal；
Pull-up stage, pull-up circuit answer the output of the drive element of the grid under the control of the first control signal
Position；
The holding stage is pulled up, pull-up holding circuit makes the defeated of the drive element of the grid under the control of the first control signal
Reset state is kept out.
Priority Applications (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 |
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106782336A CN106782336A (en) | 2017-05-31 |
| CN106782336B true CN106782336B (en) | 2019-01-22 |
Family
ID=58956129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106782336B (en) |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106782336A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103474038B (en) | Shift register cell and driving method, shift register and display device | |
| CN104318909B (en) | Shift register unit, gate drive circuit, drive method thereof, and display panel | |
| CN104505049B (en) | Grid driving circuit | |
| CN105469763B (en) | Drive element of the grid, gate driving circuit and display device | |
| CN104318888B (en) | Array base palte drive element of the grid, method, circuit and display device | |
| CN104835442B (en) | Shift register and its driving method, gate driving circuit and display device | |
| CN106128364B (en) | Shift register cell and its driving method, gate driving circuit, display device | |
| CN105139816B (en) | Gate driving circuit | |
| CN108806628B (en) | Shifting register unit and driving method thereof, grid driving circuit and display device | |
| CN108648718A (en) | Shift register cell and its driving method, gate driving circuit and display device | |
| CN104732904B (en) | Display device and gate drive circuit and gate drive unit circuit thereof | |
| WO2021056239A1 (en) | Shift register unit, drive method, gate drive circuit, and display device | |
| CN104715732B (en) | Grid driving circuit and display device | |
| CN109935188A (en) | Drive element of the grid, method, gate driving mould group, circuit and display device | |
| CN104517577B (en) | Liquid crystal indicator and gate drivers thereof | |
| CN105788553B (en) | GOA circuits based on LTPS semiconductor thin-film transistors | |
| CN107403602A (en) | Shift register cell, shift-register circuit and display device | |
| CN109285505A (en) | A kind of shift register cell, gate driving circuit and display device | |
| CN109064964A (en) | Shift register cell, driving method, gate driving circuit and display device | |
| CN106504719A (en) | Shift register cell, driving method, gate driver circuit and display device | |
| CN105575349B (en) | GOA circuits and liquid crystal display device | |
| CN107958649A (en) | Shift register cell, driving method, gate driving circuit and display device | |
| CN103503057A (en) | Scanning signal line driving circuit, display device provided therewith, and scanning signal line driving method | |
| WO2020147689A1 (en) | Shift register and driving method therefor, gate driving circuit and display apparatus | |
| CN109243351A (en) | Shift register cell and its driving method, gate driving circuit and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |