CN106157873B - A kind of gate drive apparatus, driving method and display panel - Google Patents
A kind of gate drive apparatus, driving method and display panel Download PDFInfo
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- CN106157873B CN106157873B CN201610782874.6A CN201610782874A CN106157873B CN 106157873 B CN106157873 B CN 106157873B CN 201610782874 A CN201610782874 A CN 201610782874A CN 106157873 B CN106157873 B CN 106157873B
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- 101100461812 Arabidopsis thaliana NUP96 gene Proteins 0.000 description 7
- 102100030393 G-patch domain and KOW motifs-containing protein Human genes 0.000 description 7
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 7
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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
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- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
The present invention discloses a kind of gate drive apparatus, driving method and display panel, it include: multiple shift registers, the first driving switch and first film transistor, the scanning signal output end of first shift register is connect with the drain electrode of at least one first film transistor, the scanning signal input terminal of second shift register and the source electrode of first film transistor connect, and the grid of first film transistor is connect with the first driving switch；When the first driving switch starts work, second shift register receives the scanning signal that the first shift register is sent, when the second shift register is when receiving scanning signal, at least one third shift register synchronizes the scanning signal for receiving the transmission of the first shift register, realize the synchronous driving of level-one shift register at least two-stage shift register, the image relatively low for resolution requirement had not only guaranteed that image showed needs, but also has reduced the power consumption of device.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of gate drive apparatus, driving method and display panel.
Background technique
Film transistor display panel is a kind of active matrix display panel, the driving circuit of film transistor display panel
Including host controller, sequence controller, source electrode driver, gate drivers and include the pixel battle array of multiple pixel units
Column.It wherein, include thin film transistor (TFT) in each pixel unit, which includes grid, source electrode and drain electrode.
Specifically, in film transistor display panel, sequence drivers are used for source electrode driver and gate drivers
Control signal is provided.
Gate drivers include multi-stage shift register (as shown in Figure 2) at present, and gate drivers receive sequence controller
The timing control signal of transmission is worked using timing control signal control multi-stage shift register.Wherein, timing control signal packet
Include clock signal (clock signal, CK), trigger signal (start signal, STV), reset signal (reset signal,
RST) etc..
Specifically, gate drivers receive the STV and CK that sequence controller is sent, driving zero level shift register passes through
Grid line exports scanning signal, and the grid of the thin film transistor (TFT) in the corresponding pixel unit of zero level shift register is driven to lead
It is logical；And scanning signal is sent to first order shift register by zero level shift register；At this point, gate drivers according to when
The CK that sequence controller is sent, driving first order shift register export scanning signal by grid line, and first order displacement is driven to post
The gate turn-on of thin film transistor (TFT) in the corresponding pixel unit of storage；And scanning signal is sent to by the first shift register
Second level shift register；......；Successively down, gate driver drive shift register not at the same level is exported by grid line
Scanning signal, and drive the gate turn-on of the thin film transistor (TFT) in the corresponding pixel unit of every level-one shift register.
When the host controller of film transistor display panel, which receives, needs image to be shown, sent out to sequence controller
Control instruction is sent, time sequence controller grid driver and source electrode driver is made to realize that image is shown.In this course, grid
Driver shines according to the pixel unit in the driving method driving pixel array of above-mentioned record, reaches the mesh of display image
's.
But in practical applications, it has been investigated that, for different display images, gate drivers are according to above-mentioned note
Pixel unit in the driving method driving pixel array of load, which shines, has the case where driving wasting of resources, while increasing grid drive
The power consumption of dynamic device.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of gate drive apparatus, driving method and display panels, for solving
The bigger problem of the power consumption of gate drivers certainly existing in the prior art.
A kind of gate drive apparatus, comprising: multiple shift registers, the first driving switch and N number of first film transistor,
N is natural number, in which:
The scanning signal output end of the first shift register in the multiple shift register and N number of the first film crystal
The drain electrode of first film transistor described at least one of pipe connects, the second shift LD in the multiple shift register
The scanning signal input terminal of device is connect with the source electrode of the first film transistor, the grid of the first film transistor and institute
State the connection of the first driving switch；
Second shift register receives first shift LD when first driving switch starts work
The scanning signal that device is sent, wherein when second shift register is when receiving the scanning signal, the multiple displacement
At least one third shift register, which synchronizes, in register receives the scanning signal that first shift register is sent.
A kind of gate drive apparatus, comprising: N grades of shift registers, the first driving switch and M first film transistor, N
It is natural number with M, and N is greater than M, in which:
The scanning signal output end of N-1 grades of shift registers in the N grades of shift register is brilliant with M the first film
The drain electrode of first film transistor described at least one of body pipe connects, N+1 grades of displacements in the N grades of shift register
The scanning signal input terminal of register is connect with the source electrode of the first film transistor, the grid of the first film transistor
It is connect with first driving switch；
The N+1 grades of shift registers receive the N-1 grades of shiftings when first driving switch starts work
The scanning signal that bit register is sent, wherein when the N+1 grades of shift registers are when receiving the scanning signal, institute
It states N grades of shift registers in N grades of shift registers and synchronizes the scanning letter for receiving the N-1 grades of shift registers transmission
Number.
A kind of driving method of above-mentioned gate drive apparatus, comprising:
The first shift register difference when detecting that the first driving switch starts work, in the gate drive apparatus
Scanning signal is sent at least two shift registers connecting with the scanning signal output end of first shift register, is made
Its described at least two shift register, which synchronizes, receives the scanning signal；
Wherein, first driving switch passes through the grid of different thin film transistor (TFT)s and described at least two respectively and shifts
Register connection, first shift register respectively by the drain electrode of the different thin film transistor (TFT) and source electrode and it is described extremely
Few two shift registers connection.
A kind of display panel includes above-mentioned gate drive apparatus.
The present invention has the beneficial effect that:
Gate drive apparatus documented by the embodiment of the present invention, comprising: multiple shift registers, the first driving switch and N
A first film transistor, N are natural number, wherein the scanning of the first shift register in the multiple shift register is believed
The drain electrode of first film transistor described at least one of number output end and N number of first film transistor is connect, the multiple
The scanning signal input terminal of the second shift register in shift register is connect with the source electrode of the first film transistor, institute
The grid for stating first film transistor is connect with first driving switch；Second shift register drives described first
When dynamic switch starting work, the scanning signal that first shift register is sent is received, when second shift register exists
When receiving the scanning signal, in the multiple shift register at least one third shift register synchronize receive it is described
The scanning signal that first shift register is sent.Documented gate drive apparatus level-one shift register in the embodiment of the present invention
Driving at least two-stage shift register can be synchronized, can be effectively reduced the scan frequency of gate drive apparatus, i.e., for differentiating
Rate requires relatively low image, can not only guarantee that image showed needs, but also can reduce grid using scheme documented by the present invention
The power consumption of electrode driving device, and then the power problems for the display panel being effectively improved play the purpose for saving resource.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of traditional gate drivers；
Fig. 2 is a kind of structural schematic diagram of gate drive apparatus provided in an embodiment of the present invention；
Fig. 2 (a) is the structural schematic diagram that a shift register drives multiple shift register work simultaneously；
Fig. 2 (b) is the structural schematic diagram that level-one shift register drives the work of next stage shift register；
Fig. 3 is a kind of structural schematic diagram of gate drive apparatus provided in an embodiment of the present invention；
Fig. 3 (a) is the structural representation that the 0th grade of shift register drives the 1st grade of shift register and the 2nd grade of shift register
Figure；
Fig. 4 is a kind of flow diagram of the driving method of gate drive apparatus provided in an embodiment of the present invention；
Fig. 5 is a kind of driving principle schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 6 is the timing diagram of display panel when the first driving switch works.
Specific embodiment
In practical applications, since host controller is after receiving image to be displayed, by the corresponding number of image to be displayed
Word signal is converted into analog signal and is sent to sequence controller, is driven respectively to grid from sequence controller according to the analog signal
Dynamic device and source electrode driving device transmission timing control signal, so that gate drive apparatus is according to the timing control letter received
Number shift register is successively driven step by step, so that shift register is passed sequentially through grid line output scanning signal, drive shift register
The gate turn-on of thin film transistor (TFT) in corresponding pixel unit；Source electrode driving device drives source electrode according to the timing control signal
Driving circuit is that the thin film transistor (TFT) of gate turn-on applies voltage, so that the corresponding pixel unit of thin film transistor (TFT) is shone, Jin Erda
To the purpose of display image.But it has been investigated that, drive the pixel unit in pixel array to shine for some resolutions step by step
A kind of wasting of resources for rate image of less demanding, simultaneously for for gate drive apparatus be also a kind of power consumption.
In order to achieve the object of the present invention, the embodiment of the invention provides a kind of gate drive apparatus, driving method and aobvious
Show panel, gate drive apparatus documented by the embodiment of the present invention, comprising: multiple shift registers, the first driving switch and N number of
First film transistor, N are natural number, wherein the scanning signal of the first shift register in the multiple shift register
The drain electrode of first film transistor described at least one of output end and N number of first film transistor is connect, the multiple shifting
The scanning signal input terminal of the second shift register in bit register is connect with the source electrode of the first film transistor, described
The grid of first film transistor is connect with first driving switch；Second shift register, in first driving
When switch starting work, the scanning signal that first shift register is sent is received, when second shift register is connecing
At least one third shift register, which synchronizes, when receiving the scanning signal, in the multiple shift register receives described
The scanning signal that one shift register is sent.Documented gate drive apparatus level-one shift register energy in the embodiment of the present invention
Enough synchronous drivings at least two-stage shift register, can be effectively reduced the scan frequency of gate drive apparatus, i.e., for resolution ratio
It is required that relatively low image, can not only guarantee that image showed needs, but also can reduce grid using scheme documented by the present invention
The power consumption of driving device, and then the power problems for the display panel being effectively improved play the purpose for saving resource.
It should be noted that synchronous for driving other grade of shift register of level-one shift register in the embodiment of the present invention
Number can according to for display resolution be less than given threshold the consumed power consumption of image number be configured, can also basis
Experimental data determines, is with the number of level-one shift register other grade of shift register of synchronous driving in embodiments of the present invention
It is illustrated for no more than 5, it is preferable that level-one shift register is synchronous to drive other two-stage shift registers.
It should be noted that the first shift register, the second shift register, third documented by the embodiment of the present invention
First, second, third, fourth and fifth documented by shift register, the 4th shift register and the 5th shift register,
There is no particular meaning, is only used to indicate different shift registers.
In embodiments of the present invention, it can be not suitable for metal-oxide-semiconductor between the 0th grade of shift register and the 1st grade of shift register,
Here without limitation.
Each embodiment of the invention is described in further detail with reference to the accompanying drawings of the specification.Obviously, described
Embodiment be only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this hair
The range of bright protection.
Fig. 2 is a kind of structural schematic diagram of gate drive apparatus provided in an embodiment of the present invention.The embodiment of the present invention provides
Gate drive apparatus include: multiple 211~21N of shift register, the first driving switch 22, N number of first film transistor (i.e.
Metal-oxide-semiconductor) 231~23N, the value range of N is natural number here.
The scanning signal output end of the first shift register in the multiple shift register and N number of the first film crystal
The drain electrode of first film transistor described at least one of pipe connects, the second shift LD in the multiple shift register
The scanning signal input terminal of device is connect with the source electrode of the first film transistor, the grid of the first film transistor and institute
State the connection of the first driving switch；
Second shift register receives first shift LD when first driving switch starts work
The scanning signal that device is sent, wherein when second shift register is when receiving the scanning signal, the multiple displacement
At least one third shift register, which synchronizes, in register receives the scanning signal that first shift register is sent.
I.e. when the first driving switch starts work, the gate turn-on of first film transistor, the second shift register is connect
Receive the scanning signal of the first shift register transmission.
In embodiments of the present invention, in addition to the second shift register passes through first film transistor and the first shift register
Except connection, it is brilliant by another the first film that there may also be at least one third shift registers and the first shift register
The connection of body pipe, connection type is identical with the connection type of first film transistor as the second shift register, here not detailed
It repeats.
As shown in Fig. 2 (a), the structural schematic diagram of multiple shift register work is driven simultaneously for a shift register.
Here it is illustrated so that the number of third shift register is 3 as an example.
As can be seen that shift register 1, shift register 2, shift register 3,4 and of shift register from Fig. 2 (a)
Shift register 5, MOS1~MOS4, wherein the grid of MOS1 is connect with the first driving switch, the source electrode and shift LD of MOS1
The scanning signal input terminal of device 2 connects, and the drain electrode of MOS1 is connect with the scanning signal output end of shift register 1；
The grid of MOS2 is connect with the first driving switch, the source electrode of MOS2 and the scanning signal input terminal of shift register 3
Connection, the drain electrode of MOS2 are connect with the scanning signal output end of shift register 1；
The grid of MOS3 is connect with the first driving switch, the source electrode of MOS3 and the scanning signal input terminal of shift register 4
Connection, the drain electrode of MOS3 are connect with the scanning signal output end of shift register 1；
The grid of MOS4 is connect with the first driving switch, the source electrode of MOS4 and the scanning signal input terminal of shift register 5
Connection, the drain electrode of MOS4 are connect with the scanning signal output end of shift register 1.
I.e. when the first driving switch starts work, the scanning signal of shift register 1 passes through MOS1~MOS4 points respectively
It is not sent to shift register 2, shift register 3, shift register 4 and shift register 5, in this way, shift register 2, shifting
The gate turn-on of bit register 3, shift register 4 and the thin film transistor (TFT) in the corresponding pixel unit of shift register 5.
In this case, if source electrode driving device is by source electrode drive circuit to the thin film transistor (TFT) of gate turn-on at this time
Apply voltage, so that shift register 2, shift register 3, shift register 4 and the corresponding pixel unit of shift register 5 are same
Shi Faguang, not only ensure that the display demand of the low image of resolution ratio, but also the scan frequency of gate drive apparatus is effectively reduced.
It should be noted that the synchronous driving shift register 2, shift register 3,4 and of shift register of shift register
Shift register 5, shift register 2, shift register 3, shift register 4 and shift register 5 can be filled in gate driving
Be in setting connection, can also be in gate drive apparatus it is discontinuous, here without limitation.
So scanning signal is received in shift register 2, shift register 3, shift register 4 and shift register 5
Later, shift register 2, shift register 3, shift register 4 and shift register 5 can be same again in the manner described above respectively
When drive other shift registers, level-one shift register can also be driven according to the prior art respectively, if it is synchronous here
Without limitation, it can be not specifically limited here with other modes.
In gate drive apparatus provided in an embodiment of the present invention, further includes: the second driving switch 24 and M the second films
Transistor 251~25M, M are natural number, in which:
Scanning signal output end and M the second film crystal of the 4th shift register in the multiple shift register
The drain electrode of second thin film transistor (TFT) in pipe connects, the 5th shift register in the multiple shift register
Scanning signal input terminal is connect with the source electrode of second thin film transistor (TFT), the grid of second thin film transistor (TFT) and described the
The connection of two driving switch；
5th shift register receives the 4th shift LD when second driving switch starts work
The scanning signal that device is sent, the scanning signal are that the gate drive apparatus transmits step by step after controlled signal driving.
I.e. when the second driving switch starts work, the gate turn-on of the second thin film transistor (TFT), the 5th shift register is connect
Receive the scanning signal of the 4th shift register transmission.
In order to reduce the power consumption of display panel, for gate drive apparatus, two kinds are proposed in embodiments of the present invention
Driving structure, a kind of driving structure such as Fig. 2 (a) are shown；Another driving method is identical as existing driving method principle, using by
Grade driving method, as shown in Fig. 2 (b).
As shown in Fig. 2 (b), the structural schematic diagram of next stage shift register work is driven for level-one shift register.
As can be seen that shift register 1, shift register 2, shift register 3,4 and of shift register from Fig. 2 (b)
Shift register 5, MOS1~MOS4, wherein the grid of MOS1 is connect with the second driving switch, the source electrode and shift LD of MOS1
The scanning signal input terminal of device 2 connects, and the drain electrode of MOS1 is connect with the scanning signal output end of shift register 1；
The grid of MOS2 is connect with the second driving switch, the source electrode of MOS2 and the scanning signal input terminal of shift register 3
Connection, the drain electrode of MOS2 are connect with the scanning signal output end of shift register 2；
The grid of MOS3 is connect with the second driving switch, the source electrode of MOS3 and the scanning signal input terminal of shift register 4
Connection, the drain electrode of MOS3 are connect with the scanning signal output end of shift register 3；
The grid of MOS4 is connect with the second driving switch, the source electrode of MOS4 and the scanning signal input terminal of shift register 5
Connection, the drain electrode of MOS4 are connect with the scanning signal output end of shift register 4.
I.e. when the second driving switch starts work, the scanning signal of shift register 1 is sent to displacement by MOS1 and posts
Storage 2, so that the corresponding thin film transistor (TFT) of shift register 2 is connected；Meanwhile the scanning signal of shift register 2 passes through MOS2
It is sent to shift register 3, so that the corresponding thin film transistor (TFT) of shift register 3 is connected；Meanwhile the scanning of shift register 3
Signal is sent to shift register 4 by MOS3, so that the corresponding thin film transistor (TFT) of shift register 4 is connected；Meanwhile displacement is posted
The scanning signal of storage 4 is sent to shift register 5 by MOS4, so that the corresponding thin film transistor (TFT) of shift register 5 is connected.
In this case, if source electrode driving device is by source electrode drive circuit to the thin film transistor (TFT) of gate turn-on at this time
Apply voltage, makes shift register 2, shift register 3, shift register 4 and the corresponding pixel list of shift register 5 respectively
Member shines, and can guarantee the display demand of high resolution image at this time.
Provided gate drive apparatus through the invention can synchronize driving at least two-stage by level-one shift register
Shift register can be effectively reduced the scan frequency of gate drive apparatus, i.e., image relatively low for resolution requirement can
Not only to have guaranteed that image showed needs, but also can reduce the power consumption of gate drive apparatus, in turn using scheme documented by the present invention
The power problems for the display panel being effectively improved play the purpose for saving resource.
Fig. 3 is a kind of structural schematic diagram of gate drive apparatus provided in an embodiment of the present invention.The embodiment of the present invention is with grid
Comprising being illustrated for N grades of shift registers in electrode driving device.
Gate drive apparatus provided in an embodiment of the present invention includes: N grades of shift registers, the first driving switch and M the
One thin film transistor (TFT), N and M are natural number, and N is greater than M, in which:
The scanning signal output end of N-1 grades of shift registers in the N grades of shift register is brilliant with M the first film
The drain electrode of first film transistor described at least one of body pipe connects, N+1 grades of displacements in the N grades of shift register
The scanning signal input terminal of register is connect with the source electrode of the first film transistor, the grid of the first film transistor
It is connect with first driving switch；
The N+1 grades of shift registers receive the N-1 grades of shiftings when first driving switch starts work
The scanning signal that bit register is sent, wherein when the N+1 grades of shift registers are when receiving the scanning signal, institute
It states N grades of shift registers in N grades of shift registers and synchronizes the scanning letter for receiving the N-1 grades of shift registers transmission
Number.
In embodiment provided by the present invention, the gate drive apparatus further include: the second driving switch and M second
Thin film transistor (TFT), M are natural number, in which:
Scanning signal output end and M the second film crystal of N grades of shift registers in the N grades of shift register
The drain electrode of second thin film transistor (TFT) in pipe connects, N+1 grades of shift registers in the N grades of shift register
Scanning signal input terminal connect with the source electrode of second thin film transistor (TFT), the grid of second thin film transistor (TFT) with it is described
The connection of second driving switch；
The N+1 grades of shift registers receive the N grades of displacements when second driving switch starts work
The scanning signal that register is sent, the scanning signal are that the gate drive apparatus transmits step by step after controlled signal driving
's.
It is described in detail so that N value is 1 as an example below.
The scanning signal output end of 0th grade of shift register is connect with the drain electrode of a first film transistor, the 2nd grade of shifting
The scanning signal input terminal of bit register is connect with the source electrode of the first film transistor, the grid of the first film transistor
Pole is connect with first driving switch；
The scanning signal output end of 1st grade of shift register is connect with the drain electrode of second thin film transistor (TFT), the 2nd grade of shifting
The scanning signal input terminal of bit register is connect with the source electrode of second thin film transistor (TFT), the grid of second thin film transistor (TFT)
Pole is connect with second driving switch.
It should be noted that the scanning of the scanning signal output end and the 1st grade of shift register of the 0th grade of shift register is believed
The connection of number input terminal.
It is that the 0th grade of shift register drives the 1st grade of shift register and the 2nd grade of shift register as shown in Fig. 3 (a)
Structural schematic diagram.
As can be seen that the 0th grade of shift register drives the 1st grade when the first driving switch starts work from Fig. 3 (a)
When shift register, the 2nd grade of shift register is driven by first film transistor.
I.e. scanning signal is sent to the 1st grade of shift register by the 0th grade of shift register, so that the 1st grade of shift register
Corresponding thin film transistor (TFT) conducting；Meanwhile scanning signal is sent to by first film transistor by the 0th grade of shift register
2 grades of shift registers, so that the corresponding thin film transistor (TFT) conducting of the 2nd grade of shift register.
When the second driving switch starts work, the 0th grade of shift register drives the 1st grade of shift register, the 1st grade of displacement
Register drives the 2nd grade of shift register by the second thin film transistor (TFT).
I.e. scanning signal is sent to the 1st grade of shift register by the 0th grade of shift register, so that the 1st grade of shift register
Corresponding thin film transistor (TFT) conducting；Later, scanning signal is sent to by the second thin film transistor (TFT) by the 1st grade of shift register
2 grades of shift registers, so that the corresponding thin film transistor (TFT) conducting of the 2nd grade of shift register.
And so on, when the first driving switch starts work, the 2nd grade of shift register drives 3rd level shift register
When, the 4th grade of shift register is driven by first film transistor；......；N-2 grades of shift registers drive N-1 grades
When shift register, N grades of shift registers are driven by first film transistor.
What needs to be explained here is that when the first driving switch starts work, it may also is that the 1st grade of shift register drives
When dynamic 3rd level shift register, the 4th grade of shift register is driven by first film transistor；......；N-3 grades of displacements
When register drives N-1 grades of shift registers, N grades of shift registers are driven by first film transistor.
When the second driving switch starts work, the 0th grade of shift register drives the 1st grade of shift register, the 1st grade of displacement
Register drives the 2nd grade of shift register by the second thin film transistor (TFT)；......；N-2 grades of shift registers drive N-1
Grade shift register, N-1 grades of shift registers drive N-2 grades of shift registers by the second thin film transistor (TFT).
Fig. 4 is a kind of flow diagram of the driving method of gate drive apparatus provided in an embodiment of the present invention.The side
Method can be as follows.
Step 401: detection is the work of the first driving switch of starting or starting the second driving switch work, if testing result
It is starting the first driving switch work, thens follow the steps 402；If testing result is starting the second driving switch work, execute
Step 403.
In step 401, gate drive apparatus receives the control instruction that sequence controller is sent, and the control instruction is root
It is determined according to the corresponding resolution ratio of image to be displayed, the control instruction is for controlling first driving switch, described second
Driving switch starts work.
Gate drive apparatus determines that the first driving switch of starting still starts the second driving and opens according to the control instruction
It closes.
If gate drive apparatus determines that the control instruction is control the first driving switch starting work, it is considered as inspection
Measure the first driving switch starting work；
If gate drive apparatus determines that the control instruction is control the second driving switch starting work, it is considered as inspection
Measure the second driving switch starting work.
Step 402: when detecting that the first driving switch starts work, the first displacement in the gate drive apparatus is posted
Storage is swept at least two shift registers transmission connecting with the scanning signal output end of first shift register respectively
Signal is retouched, its described at least two shift register is synchronized and receives the scanning signal.
Wherein, first driving switch passes through the grid of different thin film transistor (TFT)s and described at least two respectively and shifts
Register connection, first shift register respectively by the drain electrode of the different thin film transistor (TFT) and source electrode and it is described extremely
Few two shift registers connection.
Step 403: when detecting that the second driving switch starts work, the first displacement in the gate drive apparatus is posted
Storage sends scanning signal to the second shift register connecting with the scanning signal output end of first shift register, makes
Its described shift register receives the scanning signal.
Wherein, second driving switch passes through the grid and first shift LD of different thin film transistor (TFT)s respectively
Device and/or third shift register connection.
Step 404: the scanning signal is sent to by second shift register when receiving the scanning signal
The third shift register being connect with the scanning signal output end of second shift register.
Wherein, the scanning signal output end of second shift register is connect with the third shift register.
In step 404, the scanning signal output end of the second shift register by with the third shift register
The connection of scanning signal input terminal.
Wherein, the scanning signal output end of second shift register is connect with the drain electrode of the thin film transistor (TFT), institute
The source electrode for stating thin film transistor (TFT) is connect with the scanning signal input terminal of the third shift register, the grid of the thin film transistor (TFT)
Pole is connect with second driving switch.
In embodiments of the present invention, a kind of display panel is additionally provided, the gate driving included in the display panel
The gate drive apparatus recorded in above-described embodiment can be used in device, and the gate drive apparatus recorded here is according to above-mentioned implementation
The driving method recorded in example is driven.
Fig. 5 is a kind of driving principle schematic diagram of display panel provided in an embodiment of the present invention.The method can be as follows
It is shown.
Step 501: receiving image to be displayed.
Here image to be displayed can be the image information of digital signal form, then host controller needs will be digital
The image to be displayed of signal is converted into the image to be displayed of analog signal.
Step 502: image to be displayed being identified, determines the resolution ratio for showing the image to be displayed.
Step 503: judging whether the resolution ratio of image to be displayed is less than given threshold, if being less than given threshold, execute
Step 504；Otherwise, step 506 is executed.
Step 504: if it is determined that instruction sequence controller drives to grid when the resolution ratio of image to be displayed is less than given threshold
Dynamic device sends control instruction, which indicates that the first driving switch starts work.
Step 505: gate drive apparatus drives different shift registers to send scanning signal, makes according to driving circuit
It obtains at least two shift registers and receives the scanning signal that the same shift register is sent simultaneously.
In step 505, gate drive apparatus drives different shift registers to send scanning signal according to driving circuit
Mode can be carried out in the way of Fig. 2 (a) or Fig. 3 (a), do not specifically describe here.
Fig. 6 is the timing diagram of display panel when the first driving switch works.Wherein, S0-SnFor every level-one shift register institute
Corresponding grid line, D1-DnFor the data line of source electrode driving device.
From fig. 6 it can be seen that when the first driving switch starts work, Sn-2S is driven simultaneouslyn-1And Sn.It is driven in source electrode
Make (n-1)th grade of shift register and the corresponding thin film transistor (TFT) conducting of n-th grade of shift register under the action of dynamic circuit, and then makes
It obtains corresponding pixel unit to shine simultaneously, effectively reduces the frequency that gate drive apparatus sends scanning signal, effectively drop
The low power consumption of gate drive apparatus.
Since n-th grade of shift register receives the scanning signal of the n-th -2 grades shift registers, and (n-1)th grade of displacement is posted
Storage connects the scanning signal for equally receiving the n-th -2 grades shift registers, under the driving of source electrode driver, passes through source drive electricity
Road applies voltage to the thin film transistor (TFT) in each pixel unit, and in data line Dn-1、DnUnder the action of send out pixel unit
Light can either meet display requirement of the resolution ratio less than the image of given threshold in this way, and reduce gate drive apparatus transmission
The frequency of scanning signal significantly reduces the power consumption of gate drive apparatus.
Step 506: if it is determined that indicating sequence controller to grid when the resolution ratio of image to be displayed is not less than given threshold
Driving device sends control instruction, which indicates that the second driving switch starts work.
Step 507: gate drive apparatus drives different shift registers to send scanning letter step by step according to driving circuit
Number.
In step 507, gate drive apparatus drives different shift registers to send scanning signal according to driving circuit
Mode can be carried out in the way of Fig. 2 (b) or Fig. 3 (a), do not specifically describe here.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from model of the invention by those skilled in the art
It encloses.In this way, if these modifications and changes of the present invention is within the scope of the claims of the present invention and its equivalent technology, then
The present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of gate drive apparatus characterized by comprising multiple shift registers, the first driving switch and N number of first thin
Film transistor, N are natural number, in which:
In the scanning signal output end of the first shift register in the multiple shift register and N number of first film transistor
At least one first film transistor drain electrode connection, the second shift register in the multiple shift register
Scanning signal input terminal is connect with the source electrode of the first film transistor, the grid of the first film transistor and described the
The connection of one driving switch；
Second shift register receives the first shift register hair when first driving switch starts work
The scanning signal sent, wherein when second shift register is when receiving the scanning signal, the multiple shift LD
At least one third shift register, which synchronizes, in device receives the scanning signal that first shift register is sent.
2. gate drive apparatus as described in claim 1, which is characterized in that the gate drive apparatus further include: second
Driving switch and M the second thin film transistor (TFT)s, M is natural number, in which:
In scanning signal output end and M the second thin film transistor (TFT) of the 4th shift register in the multiple shift register
Second thin film transistor (TFT) drain electrode connection, the scanning of the 5th shift register in the multiple shift register
Signal input part is connect with the source electrode of second thin film transistor (TFT), and the grid of second thin film transistor (TFT) and described second drives
Dynamic switch connection；
5th shift register receives the 4th shift register hair when second driving switch starts work
The scanning signal sent, the scanning signal are that the gate drive apparatus transmits step by step after controlled signal driving.
3. gate drive apparatus as described in claim 1, which is characterized in that the gate drive apparatus further include: second
Driving switch and M the second thin film transistor (TFT)s, M is natural number, in which:
The scanning signal output end of the scanning signal input terminal of the third shift register and first shift register connects
It connects；
Second film in scanning signal output end and M the second thin film transistor (TFT) of the third shift register
The drain electrode of transistor connects, the source electrode of the scanning signal input terminal of second shift register and second thin film transistor (TFT)
Connection, the grid of second thin film transistor (TFT) are connect with second driving switch；
The third shift register receives the first shift register hair when second driving switch starts work
The scanning signal sent, and the scanning signal is sent to by second shift register by second thin film transistor (TFT),
The scanning signal is that the gate drive apparatus transmits step by step after controlled signal driving.
4. a kind of gate drive apparatus characterized by comprising N grades of shift registers, the first driving switch and M a first is thin
Film transistor, N and M are natural number, and N is greater than M, in which:
The scanning signal output end and M first film transistor of N-1 grades of shift registers in the N grades of shift register
At least one of described in first film transistor drain electrode connection, N+1 grades of shift LDs in the N grades of shift register
The scanning signal input terminal of device is connect with the source electrode of the first film transistor, the grid of the first film transistor and institute
State the connection of the first driving switch；
The N+1 grades of shift registers receive the N-1 grades of displacements and post when first driving switch starts work
The scanning signal that storage is sent, wherein N grades described when the N+1 grades of shift registers are when receiving the scanning signal
N grades of shift registers in shift register, which synchronize, receives the scanning signal that the N-1 grades of shift registers are sent.
5. gate drive apparatus as described in claim 4, which is characterized in that the gate drive apparatus further include: second
Driving switch and M the second thin film transistor (TFT)s, M is natural number, in which:
In scanning signal output end and M the second thin film transistor (TFT) of N grades of shift registers in the N grades of shift register
Second thin film transistor (TFT) drain electrode connection, N+1 grades of shift registers in the N grades of shift register sweep
It retouches signal input part to connect with the source electrode of second thin film transistor (TFT), the grid of second thin film transistor (TFT) and described second
Driving switch connection；
The N+1 grades of shift registers receive the N grades of shift LDs when second driving switch starts work
The scanning signal that device is sent, the scanning signal are that the gate drive apparatus transmits step by step after controlled signal driving.
6. a kind of driving method based on gate drive apparatus described in claim 1 characterized by comprising
When detecting that the first driving switch starts work, the first shift register in the gate drive apparatus respectively to
At least two shift registers of the scanning signal output end connection of first shift register send scanning signal, make its institute
It states at least two shift registers and synchronizes and receive the scanning signal；
Wherein, first driving switch passes through the grid and at least two shift LD of different thin film transistor (TFT)s respectively
Device connection, first shift register pass through the drain electrode of the different thin film transistor (TFT) and source electrode and described at least two respectively
A shift register connection.
7. the driving method of gate drive apparatus as claimed in claim 6, which is characterized in that the method also includes:
When detecting that the second driving switch starts work, the first shift register in the gate drive apparatus to it is described
Second shift register of the scanning signal output end connection of the first shift register sends scanning signal, posts its described displacement
Storage receives the scanning signal；
The scanning signal is sent to and moves with described second when receiving the scanning signal by second shift register
The third shift register of the scanning signal output end connection of bit register；
Wherein, second driving switch passes through the grid and first shift register of different thin film transistor (TFT)s respectively
And/or the third shift register connection.
8. the driving method of gate drive apparatus as claimed in claim 7, which is characterized in that second shift register
Scanning signal output end is connect with the third shift register, comprising:
The scanning signal output end of second shift register with the scanning signal input terminal of the third shift register by connecting
It connects；
Wherein, the scanning signal output end of second shift register is connect with the drain electrode of the thin film transistor (TFT), described thin
The source electrode of film transistor is connect with the scanning signal input terminal of the third shift register, the grid of the thin film transistor (TFT) with
The second driving switch connection.
9. the driving method of gate drive apparatus as claimed in claims 6 or 7, which is characterized in that detect that the first driving is opened
It closes the/the second driving switch and starts work, comprising:
The control instruction that sequence controller is sent is received, the control instruction is determined according to the corresponding resolution ratio of image to be displayed
, the control instruction is for controlling first driving switch, second driving switch starting work；
If the control instruction is control the first driving switch starting work, the first driving switch starting is detected
Work；
If the control instruction is control the second driving switch starting work, the second driving switch starting is detected
Work.
10. a kind of display panel, which is characterized in that comprising such as gate drive apparatus described in any one of claim 1 to 5.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106782278B (en) * | 2017-02-17 | 2020-03-03 | 京东方科技集团股份有限公司 | Shift register, grid line driving method, array substrate and display device |
| CN106710508B (en) | 2017-02-17 | 2020-07-10 | 京东方科技集团股份有限公司 | Shift register, grid line driving method, array substrate and display device |
| CN112820227B (en) * | 2019-11-18 | 2024-05-07 | 瀚宇彩晶股份有限公司 | Gate drive circuit |
| CN110910834B (en) * | 2019-12-05 | 2021-05-07 | 京东方科技集团股份有限公司 | Source driver, display panel, control method of display panel and display device |
| CN111179812B (en) * | 2020-03-16 | 2023-01-17 | 昆山国显光电有限公司 | Display panel, driving method thereof and display device |
| CN111243487B (en) * | 2020-03-18 | 2022-10-11 | 昆山国显光电有限公司 | Display panel, driving method of display panel and display device |
| CN111696471A (en) * | 2020-07-13 | 2020-09-22 | 京东方科技集团股份有限公司 | Driving circuit, display panel and display driving method |
| CN114519977B (en) * | 2020-11-19 | 2023-07-25 | 上海和辉光电股份有限公司 | Array substrate and display panel |
| CN115398518A (en) * | 2021-01-28 | 2022-11-25 | 京东方科技集团股份有限公司 | Gate drive circuit, drive method thereof and display panel |
| CN115691382B (en) * | 2022-09-26 | 2024-09-24 | 武汉天马微电子有限公司 | Shifting register circuit, display panel and display device |
| CN115798382A (en) * | 2022-11-29 | 2023-03-14 | 云谷（固安）科技有限公司 | Display driving circuit, control method thereof and display device |
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