CN108922493A - A kind of driving circuit and its driving method, display device - Google Patents
A kind of driving circuit and its driving method, display device Download PDFInfo
- Publication number
- CN108922493A CN108922493A CN201811108010.1A CN201811108010A CN108922493A CN 108922493 A CN108922493 A CN 108922493A CN 201811108010 A CN201811108010 A CN 201811108010A CN 108922493 A CN108922493 A CN 108922493A
- Authority
- CN
- China
- Prior art keywords
- circuit
- transistor
- connect
- polarity
- pole
- 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.)
- Pending
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
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The embodiment of the invention discloses a kind of driving circuit and its driving methods, display device, wherein for driving display panel to be shown, display panel includes the driving circuit：Display panel is divided into multiple pixel units by M row grid line and N column data line, M row grid line and N column data line, and driving circuit includes：Source electrode drive circuit further includes：Polarity inversion circuit；Polarity inversion circuit is connect with source electrode drive circuit and N column data line respectively, and the source signal voltage for generating source electrode drive circuit carries out polarity reversion, and exports into data line, so that pixel unit polarity reverse display.The embodiment of the present invention passes through setting polarity inversion circuit, avoid the signal reversion on every source signal line in source electrode drive circuit, guarantee that the signal on every source signal line in the reverse drive of pixel unit, in source electrode drive circuit is constant, reduces power consumption.
Description
Technical field
The present embodiments relate to field of display technology, and in particular to a kind of driving circuit and its driving method, display dress
It sets.
Background technique
In order to pursue liquid crystal display (Liquid Crystal Display, abbreviation LCD) higher transmitance with it is lower
Cost, existing LCD product more and more uses the array base-plate structure of double grid pixel structure, i.e., adjacent two datas line it
Between be provided with two column sub-pixels, two grid lines are provided between adjacent rows sub-pixel.In addition, to improve the aobvious of liquid crystal display panel
Show quality, in order to avoid liquid crystal material generates polarization and causes permanent destruction, needs at regular intervals to array substrate
On pixel unit be driven reverse.
Through inventor the study found that existing double grid pixel structure is to obtain preferable display quality, pixel list is being realized
When the reverse drive of member, the signal on every source signal line in source electrode drive circuit also has to invert, to make power consumption
Greatly increase.
Summary of the invention
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of driving circuit and its driving methods, display
Device guarantees that the signal on every source signal line in the reverse drive of pixel unit, in source electrode drive circuit is constant, drop
Low power consumption.
In a first aspect, the embodiment of the present invention provides a kind of driving circuit, it is described aobvious for driving display panel to be shown
Show that panel includes：Display panel is divided into multiple by M row grid line and N column data line, the M row grid line and the N column data line
Pixel unit, the driving circuit include：Source electrode drive circuit, the driving circuit further include：Polarity inversion circuit；
The polarity inversion circuit is connect with source electrode drive circuit and the N column data line respectively, is used for source drive
The source signal voltage of circuit evolving carries out polarity reversion, and exports into the data line, so that the pixel unit polarity
Reverse display.
Optionally, the polarity inversion circuit includes：Multiple polarity invert sub-circuit；The source electrode drive circuit includes：N
Column source signal line；
The quantity of the polarity reversion sub-circuit is the half of the data line quantity；
The input terminal of i-th of polarity reversion sub-circuit respectively with 2i-1 column source signal line and 2i column source electrode
Signal wire is connected；Its output end is connected with 2i-1 column data line and 2i column data line respectively, wherein
Optionally, i-th of polarity reversion sub-circuit includes：Transmit sub-circuit and reversed sub-circuit；
The transmitting sub-circuit, respectively with first input end, the second input terminal, the first output end, second output terminal and
One polarity reverse control signal end connection, for being provided to the first output end under the control of the first polarity reverse control signal
The signal of first input end provides the signal of the second input terminal to second output terminal；
The reversed sub-circuit, respectively with first input end, the second input terminal, the first output end, second output terminal and
Two polarity reverse control signal ends connection, for being provided to the first output end under the control of the second polarity reverse control signal
The signal of second input terminal provides the signal of first input end to second output terminal；
Wherein, the first input end is connect with 2i-1 column source signal line, second input terminal and 2i column source
The connection of pole signal wire, first output end are connect with 2i-1 column data line, the second output terminal and 2i column data line
Connection.
Optionally, the transmitting sub-circuit includes：The first transistor and second transistor；
The control electrode of the first transistor is connect with the first polarity reverse control signal end, the first pole and first
Input terminal connection, the second pole is connect with the first output end；
The control electrode of the second transistor is connect with the first polarity reverse control signal end, the first pole and second
Input terminal connection, the second pole is connect with second output terminal.
Optionally, the reversed sub-circuit includes：Third transistor and the 4th transistor；
The control electrode of the third transistor is connect with the second polarity reverse control signal end, the first pole and the second input
End connection, the second pole is connect with the first output end；
The control electrode of 4th transistor is connect with the second polarity reverse control signal end, the first pole and the first input
End connection, the second pole is connect with second output terminal.
Optionally, the transmitting sub-circuit includes：The first transistor and second transistor, the reversed sub-circuit include：
Third transistor and the 4th transistor；
The control electrode of the first transistor is connect with the first polarity reverse control signal end, the first pole and first
Input terminal connection, the second pole is connect with the first output end；
The control electrode of the second transistor is connect with the first polarity reverse control signal end, the first pole and second
Input terminal connection, the second pole is connect with second output terminal；
The control electrode of the third transistor is connect with the second polarity reverse control signal end, the first pole and the second input
End connection, the second pole is connect with the first output end；
The control electrode of 4th transistor is connect with the second polarity reverse control signal end, the first pole and the first input
End connection, the second pole is connect with second output terminal.
Optionally, the signal at the first polarity reverse control signal end and the second polarity reverse control signal end
Signal is the clock signal of opposite in phase.
Optionally, the first transistor, the second transistor, the third transistor and the 4th transistor
Type is identical, is P-type transistor or N-type transistor.
Second aspect, the embodiment of the present invention also provide a kind of display device, including：Above-mentioned driving circuit.
The third aspect, the embodiment of the present invention also provide a kind of driving method using driving circuit driving display panel, institute
Stating driving circuit is above-mentioned driving circuit, including：
The source signal voltage that polarity inversion circuit generates source electrode drive circuit carries out polarity reversion, and exports to data
In line, so that pixel unit polarity reverse display.
The embodiment of the present invention provides a kind of driving circuit and its driving method, display device, wherein the driving circuit is used for
Driving display panel is shown that display panel includes：M row grid line and N column data line, M row grid line and N column data line will be shown
Show that panel is divided into multiple pixel units, driving circuit includes：Source electrode drive circuit further includes：Polarity inversion circuit；Polarity is anti-
Shifting circuit is connect with source electrode drive circuit and N column data line respectively, the source signal voltage for generating source electrode drive circuit
Polarity reversion is carried out, and is exported into data line, so that pixel unit polarity reverse display.The embodiment of the present invention passes through setting pole
Sex reversal circuit avoids the signal reversion on every source signal line in source electrode drive circuit, guarantees in pixel unit
When reverse drive, the signal on every source signal line in source electrode drive circuit is constant, reduces power consumption.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the structural schematic diagram of existing driving circuit；
Fig. 2 is the working timing figure of existing driving circuit；
Fig. 3 is the structural schematic diagram of driving circuit provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram one of polarity inversion circuit provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram two of polarity inversion circuit provided in an embodiment of the present invention；
Fig. 6 is the equivalent circuit diagram of transmitting sub-circuit provided in an embodiment of the present invention；
Fig. 7 is the equivalent circuit diagram of reversed sub-circuit provided in an embodiment of the present invention；
Fig. 8 is the equivalent circuit diagram that polarity provided in an embodiment of the present invention inverts sub-circuit；
Fig. 9 is the equivalent circuit diagram of polarity inversion circuit provided in an embodiment of the present invention；
Figure 10 is the timing diagram of four clock signals of gate driving circuit；
Figure 11 is the polar schematic diagram of pixel unit provided in an embodiment of the present invention；
Figure 12 is the working timing figure that polarity provided in an embodiment of the present invention inverts sub-circuit.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Unless otherwise defined, the embodiment of the present invention discloses the technical term used or scientific term should be institute of the present invention
The ordinary meaning that personage in category field with general technical ability is understood." first ", " second " used in the embodiment of the present invention
And similar word is not offered as any sequence, quantity or importance, and be used only to distinguish different component parts.
The similar word such as " comprising " or "comprising", which means to occur element or object before the word, to be covered to appear in and arranges behind the word
The element of act perhaps object and its equivalent and be not excluded for other elements or object.The similar word such as " connection " or " connected "
Language is not limited to physics or mechanical connection, but may include electrical connection, either direct or indirect
's.
It will be understood by those skilled in the art that all transistors used in the examples of the application all can be film crystal
Pipe or field-effect tube or the identical device of other characteristics.Preferably, thin film transistor (TFT) used in the embodiment of the present invention can be
Oxide semi conductor transistor.Since the source electrode of the transistor used here, drain electrode are symmetrical, so its source electrode, drain electrode can
To exchange.In embodiments of the present invention, to distinguish the two poles of the earth of transistor in addition to grid, one of electrode is known as first
Pole, another electrode are known as the second pole, and first extremely can be source electrode or drain electrode, and second extremely can be drain electrode or source electrode, in addition, will
The grid of transistor becomes control electrode.
Fig. 1 is the structural schematic diagram of existing driving circuit, as shown in Figure 1, driving circuit is used to that display panel to be driven to show,
Wherein, display panel includes：Multirow grid line G1, G2 ... and multiple columns of data lines Data1, Data2 ..., multirow grid line and
Display panel is divided into multiple pixel units by multiple columns of data lines, and driving circuit includes：Source electrode drive circuit, source electrode drive circuit
Source signal line S1, S2 ... connect with data line, and correspond.
Wherein, the display panel in Fig. 1 is double grid pixel structure, wherein double grid pixel structure be it is a kind of by data line with
Grid line limits the array base-plate structure of sub-pixel, is provided with two column sub-pixels, adjacent rows sub- picture between adjacent two datas line
Two grid lines are provided between element, the very big contribution due to double grid pixel structure to cost, transmitance, so that it is in LCD product
It is widely used.Specifically, double grid pixel structure mainly has Normal and two kinds of architecture modes of Z at present, wherein Z framework
All it is connected with same data line for two adjacent subpixels of data line side, Normal framework is the adjacent son in data line two sides
Pixel is all connected with this data line.Pixel structure in Fig. 1 is Normal framework, to obtain preferable display quality, needs reality
Existing pixel unit polarity reverse display, Fig. 2 are the working timing figure of existing driving circuit, as shown in Fig. 2, realizing pixel list
When first polarity reverse display, the signal on source signal line in source electrode drive circuit also has to polarity reversion, to make LCD
Power consumption greatly increases.
In order to avoid when realizing the reverse drive of pixel unit, on every source signal line in source electrode drive circuit
Signal also has to invert, so that power consumption be made greatly to increase, the embodiment of the present invention provides a kind of driving circuit and its driving side
Method, display device.
Embodiment one
Fig. 3 is the structural schematic diagram of driving circuit provided in an embodiment of the present invention, as shown in figure 3, the embodiment of the present invention mentions
The driving circuit of confession is for driving display panel to be shown, wherein display panel includes：M row grid line G (1), G
(2) ... .G (M) and N column data line Data (1), Data (2) ... .Data (N), M row grid line and N column data line will be shown
Show that panel is divided into multiple pixel units, driving circuit includes：Source electrode drive circuit 10, driving circuit further include：Polarity reversion
Circuit 20.
Specifically, polarity inversion circuit 20, respectively with source electrode drive circuit and N column data line Data (1), Data
(2) ... .Data (N) connection, the source signal voltage for generating source electrode drive circuit carries out polarity reversion, and exports
Into data line, so that pixel unit polarity reverse display.
The pixel structure of display panel in the embodiment of the present invention is Normal double grid pixel structure, and the embodiment of the present invention mentions
The driving circuit of confession does not limit the pixel structure of display panel, can be applied to other all pixels framves such as single grid
In structure, the embodiment of the present invention is not limited in any way this.It should be noted that the polarity reversion electricity provided in the embodiment of the present invention
Road is applied in Normal double grid pixel structure, can be increased the advantage of Normal double grid pixel structure in the application, be made its tool
There is bigger application range.
In addition, driving circuit provided in an embodiment of the present invention is suitable for the display panel of various sizes.
Wherein, as shown in figure 3, source electrode drive circuit includes：N column source signal line S (1), S (2) ... .S (N), driving
Further include in circuit：Gate driving circuit, gate driving circuit are connected with grid line, for providing scanning signal to grid line.
Specifically, pixel unit is sub-pixel, R, G, B in Fig. 3 respectively indicate red sub-pixel, green sub-pixels and indigo plant
Sub-pixels.
For driving display panel to be shown, display panel includes driving circuit provided in an embodiment of the present invention：M row grid
Display panel is divided into multiple pixel units by line and N column data line, grid line and data line, and driving circuit includes：Source drive
Circuit further includes：Polarity inversion circuit；Polarity inversion circuit is connect with source electrode drive circuit and data line respectively, is used for source
The source signal voltage that pole driving circuit generates carries out polarity reversion, and exports into data line, so that pixel unit polarity is anti-
Turn display.The embodiment of the present invention avoids every source signal line in source electrode drive circuit by setting polarity inversion circuit
On signal reversion, guarantee the letter on every source signal line in the reverse drive of pixel unit, in source electrode drive circuit
It is number constant, reduce power consumption.
Optionally, Fig. 4 is the structural schematic diagram one of polarity inversion circuit provided in an embodiment of the present invention, as shown in figure 4, pole
Sex reversal circuit 20 includes：Multiple polarity invert sub-circuit 21.
Specifically, the quantity of polarity reversion sub-circuit 21 is the half of data line quantity, as
As shown in figure 4, the input terminal of i-th polarity reversion sub-circuit respectively with 2i-1 column source signal line S (2i-1)
It is connected with 2i column source signal line S (2i)；Its output end respectively with 2i-1 column data line Data (2i-1) and 2i columns
Be connected according to line Data (2i), that is to say, that the input terminal of the 1st polarity reversion sub-circuit respectively with the 1st column source signal line S
(1) it is connected with the 2nd column source signal line S (2)；Its output end respectively with the 1st column data line Data (1) and the 2nd column data line
Data (2) is connected, the input terminal of the 2nd polarity reversion sub-circuit respectively with the 3rd column source signal line S (3) and the 4th column source electrode
Signal wire S (4) is connected；Its output end is connected with the 3rd column data line Data (3) and the 4th column data line Data (4) respectively, and the 3rd
The input terminal of a polarity reversion sub-circuit is connected with the 5th column source signal line S (5) and the 6th column source signal line S (6) respectively；Its
Output end is connected with the 5th column data line Data (5) and the 6th column data line Data (6) respectively, and so on, theA polarity is anti-
The input terminal of rotor circuit is connected with N-1 column source signal line S (N-1) and Nth column source signal line S (N) respectively；Its is defeated
Outlet is connected with N-1 column data line Data (N-1) and Nth column data line Data (N) respectively.
Wherein,
It should be noted that the signal of odd column source signal line is identical, the signal of even column source signal line is identical.
Optionally, Fig. 5 is the structural schematic diagram two that polarity provided in an embodiment of the present invention inverts sub-circuit, as shown in figure 5,
I-th of polarity provided in an embodiment of the present invention inverts sub-circuit：Transmit sub-circuit and reversed sub-circuit.
Specifically, transmitting sub-circuit, respectively with first input end INPUT1, the second input terminal INPUT2, the first output end
OUTPUT1, second output terminal OUTPUT2 and the first polarity reverse control signal end CL1 connection, for being inverted in the first polarity
Under the control of control signal end CL1, the signal of first input end INTPU1 is provided to the first output end OUTPUT1, it is defeated to second
Outlet OUTPUT2 provides the signal of the second input terminal INPUT2；Reversed sub-circuit, respectively with first input end INPUT1, second
Input terminal INPUT2, the first output end OUTPUT1, second output terminal OUTPUT2 and the second polarity reverse control signal end CL2 connect
It connects, for providing the second input terminal to the first output end OUTPUT1 under the control of the second polarity reverse control signal end CL2
The signal of INPUT2 provides the signal of first input end INPUT1 to second output terminal OUTPUT2.
Wherein, first input end INPUT1 is connect with 2i-1 column source signal line S (2i-1), the second input terminal INPUT2
It being connect with 2i column source signal line S (2i), the first output end OUTPUT1 is connect with 2i-1 column data line Data (2i-1),
Second output terminal OUTPUT2 is connect with 2i column data line Data (2i).
It should be noted that the structure of each polarity reversion sub-circuit is similar, only two input terminals and two output ends
The signal wire of connection difference.
Optionally, Fig. 6 is the equivalent circuit diagram of transmitting sub-circuit provided in an embodiment of the present invention, as shown in Fig. 6, transmitting
Sub-circuit includes：The first transistor M1 and second transistor M2.
Specifically, the control electrode of the first transistor M1 is connect with the first polarity reverse control signal end CL1, the first pole with
First input end INPUT1 connection, the second pole are connect with the first output end OUTPUT1；The control electrode of second transistor M2 and the
One polarity reverse control signal end CL1 connection, the first pole are connect with the second input terminal INPUT2, the second pole and the second output
Hold OUTPUT2 connection.
In the present embodiment, the exemplary structure of transmitting sub-circuit has been shown in particular in Fig. 6.Those skilled in the art are easy
Understanding be transmit sub-circuit implementation it is without being limited thereto, as long as can be realized its function.
Optionally, Fig. 7 is the equivalent circuit diagram of reversed sub-circuit provided in an embodiment of the present invention, as shown in Fig. 7, reversely
Sub-circuit includes：Third transistor M3 and the 4th transistor M4.
Specifically, the control electrode of third transistor M3 is connect with the second polarity reverse control signal end CL2, the first pole with
Second input terminal INPUT2 connection, the second pole is connect with the first output end OUTPUT1；The control electrode of 4th transistor M4 and the
Two polarity reverse control signal end CL2 connections, the first pole are connect with first input end INPUT1, the second pole and the second output
Hold OUTPUT2 connection.
In the present embodiment, the exemplary structure of reversed sub-circuit has been shown in particular in Fig. 7.Those skilled in the art are easy
Understanding is that the implementation of reversed sub-circuit is without being limited thereto, as long as can be realized its function.
Optionally, Fig. 8 is the equivalent circuit diagram that polarity provided in an embodiment of the present invention inverts sub-circuit, and Fig. 9 is the present invention
The equivalent circuit diagram for the polarity inversion circuit that embodiment provides, as shown in Figure 8 and Figure 9, transmitting sub-circuit includes：The first transistor
M1 and second transistor M2, reversed sub-circuit include：Third transistor M3 and the 4th transistor M4.
Specifically, the control electrode of the first transistor M1 is connect with the first polarity reverse control signal end CL1, the first pole with
First input end INPUT1 connection, the second pole are connect with the first output end OUTPUT1；The control electrode of second transistor M2 and the
One polarity reverse control signal end CL1 connection, the first pole are connect with the second input terminal INPUT2, the second pole and the second output
Hold OUTPUT2 connection；The control electrode of third transistor M3 is connect with the second polarity reverse control signal end CL2, the first pole with
Second input terminal INPUT2 connection, the second pole is connect with the first output end OUTPUT1；The control electrode of 4th transistor M4 and the
Two polarity reverse control signal end CL2 connections, the first pole are connect with first input end INPUT1, the second pole and second defeated
Outlet OUTPUT2 connection.
The exemplary structure of transmitting sub-circuit and reversed sub-circuit has been shown in particular in the present embodiment.Those skilled in the art
Member is readily appreciated that it is that the implementation of above each sub-circuit is without being limited thereto, as long as can be realized its respective function.
Specifically, the first polarity reverse control signal end CL1 and the second polarity reverse control signal end CL2 signal are phase
The opposite clock signal in position.
It should be noted that the first polarity reverse control signal end CL1 and the second polarity reverse control signal end CL2 can be with
Individually addition, when driving circuit apply 4 clock signals (CLK1, CLK2, CLK3 and CLK4) gate driving framework,
When in the display panel of Normal double grid pixel structure, Figure 10 is the timing diagram of four clock signals of gate driving circuit, such as
Shown in Figure 10, the first polarity reverse control signal end CL1 and the second polarity reverse control signal end CL2 can respectively with CLK1 and
CLK3 connection, the embodiment of the present invention are not limited in any way this, as long as the signal of the first polarity reverse control signal end CL1 and
The signal of two polarity reverse control signal end CL2 is the clock signal of opposite in phase.
Specifically, the week of the signal at the first polarity reverse control signal end and the signal at the second polarity reverse control signal end
Phase is four times of the duration of gate line signals.
In the present embodiment, transistor M1~M4 all can be N-type transistor or P-type transistor, technique stream can be unified
Journey can reduce manufacturing process, help to improve the yield of product.Amorphous silicon can be considered in transistor in the embodiment of the present invention
Thin film transistor (TFT), in addition, it is contemplated that low-temperature polysilicon film transistor, metal oxide thin-film transistor or high temperature polysilicon body
The leakage current of silicon thin film transistor is smaller, and therefore, preferably all transistors of the embodiment of the present invention are low-temperature polysilicon film crystal
Pipe, metal oxide thin-film transistor or high temperature polysilicon body silicon thin film transistor, thin film transistor (TFT) specifically can choose bottom gate
The thin film transistor (TFT) of structure or the thin film transistor (TFT) of top gate structure, as long as can be realized switching function.
Below by the course of work of the polarity inversion circuit technical solution that the embodiment of the present invention will be further explained.
With transistor M1~M4 in polarity each in polarity inversion circuit provided in an embodiment of the present invention reversion sub-circuit
It is for N-type TFT, Figure 11 is the polar schematic diagram of pixel unit provided in an embodiment of the present invention, and Figure 12 is this hair
The working timing figure for the polarity reversion sub-circuit that bright embodiment provides.
As shown in Fig. 9, Figure 11 and Figure 12, odd column source signal line S (2i-1) persistently provides high level signal, i.e., positive
The data-signal of property, even column source signal line S (2i) continue low level signal, the i.e. data-signal of negative polarity, 1≤i≤N/
2。
The input signal of first stage T1, the first polarity reverse control signal end CL1 be high level, the first transistor M1 and
Second transistor M2 is opened, and the input signal of the second polarity reverse control signal end CL2 is low level, third transistor M3 and the
Four transistor M4 are closed, and 2i-1 column source signal line S (2i-1) provides signal to 2i-1 column data line Data (2i-1),
The data-signal that the connected pixel unit of Data (2i-1) fills positive polarity is given, 2i column source signal line S (2i) gives 2i
Column data line Data (2i) provides signal, that is, gives the data-signal that the connected pixel unit of Data (2i) fills negative polarity.
In this stage, the first polarity reverse control signal end CL1 and 2i-1 column source signal line S (2i-1) in input terminal
Input signal be high level, the input signal of the second polarity reverse control signal end CL2 and 2i column source signal line S (2i)
For low level, it is high level that the 2i-1 column data line Data (2i-1) in output end, which is output signal, 2i column data line
The output signal of Data (2i) is low level.
The input signal of second stage T2, the second polarity reverse control signal end CL2 be high level, third transistor M3 and
4th transistor M4 is opened, and the input signal of the first polarity reverse control signal end CL1 is low level, the first transistor M1 and the
Two-transistor M2 is closed, and 2i-1 column source signal line S (2i-1) provides signal to 2i column data line Data (2i), that is, is given
The data-signal of positive polarity is filled with Data (2i) pixel unit being connected, 2i column source signal line S (2i) gives 2i-1 columns
Signal is provided according to line Data (2i-1), that is, gives the data-signal that the connected pixel unit of Data (2i-1) fills negative polarity.
In this stage, the second polarity reverse control signal end CL2 and 2i-1 column source signal line S (2i-1) in input terminal
Input signal be high level, the input signal of the first polarity reverse control signal end CL1 and 2i column source signal line S (2i)
For low level, it is low level that the 2i-1 column data line Data (2i-1) in output end, which is output signal, 2i column data line
The output signal of Data (2i) is high level.
After second stage T2, polarity switching continues first stage and second stage, realizes that Normal is bis- with this
The polarity reverse display of pixel unit in the display panel of grid pixel structure.
Embodiment two
Inventive concept based on the above embodiment, the embodiment of the present invention also provide a kind of utilization driving circuit driving display surface
The driving method of plate, the driving method for utilizing driving circuit to drive display panel include：
The source signal voltage that polarity inversion circuit generates source electrode drive circuit carries out polarity reversion, and exports to data
In line, so that pixel unit polarity reverse display.
Wherein, driving circuit is the driving circuit that embodiment one provides, and realization principle is similar with effect is realized, herein not
It repeats again.
Polarity inversion circuit includes：Multiple polarity invert sub-circuit, and each polarity reversion sub-circuit includes：Transmit sub-circuit
With reversed sub-circuit.
Specifically, the source signal voltage that polarity inversion circuit generates source electrode drive circuit carries out polarity reversion, and defeated
Out into data line, so that pixel unit polarity reverse display includes：Sub-circuit is transmitted in the first polarity reverse control signal
Under control, the signal of first input end is provided to the first output end, provides the signal of the second input terminal to second output terminal；Reversely
Sub-circuit provides the signal of the second input terminal under the control of the second polarity reverse control signal, to the first output end, to second
Output end provides first input end.
Embodiment three
Inventive concept based on the above embodiment, the embodiment of the present invention also provide a kind of display device, including：Driving electricity
Road.
Wherein, driving circuit is the driving circuit that embodiment one provides, and realization principle is similar with effect is realized, herein not
It repeats again.
Wherein, display device is liquid crystal display device, specifically, the display device can be：Mobile phone, tablet computer, electricity
Depending on any products or components having a display function such as machine, display, laptop, Digital Frame, navigator.
It should be noted that display device in the embodiment of the present invention can for twisted-nematic (Twisted Nematic,
Abbreviation TN) mode, vertical (Vertical Alignment, abbreviation VA) mode, plane conversion technology (In-plane
Switching, abbreviation IPS) mode or advanced Chao Wei factory switch technology (Advance super Dimension Switch, letter
Claim ADS) mode, the present invention do not do any restriction to this.
Attached drawing of the embodiment of the present invention is pertained only to the present embodiments relate to the structure arrived, and other structures, which can refer to, usually to be set
Meter.
For clarity, in the attached drawing of embodiment for describing the present invention, the thickness and size of layer or micro-structure
It is amplified.It is appreciated that ought such as layer, film, region or substrate etc element be referred to as be located at another element "above" or "below"
When, which " direct " can be located at "above" or "below" another element, or may exist intermediary element.
In the absence of conflict, the feature in the embodiment of the present invention, that is, embodiment can be combined with each other new to obtain
Embodiment.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of driving circuit, for driving display panel to be shown, the display panel includes：M row grid line and N column data
Display panel is divided into multiple pixel units by line, the M row grid line and the N column data line, and the driving circuit includes：Source
Pole driving circuit, which is characterized in that the driving circuit further includes：Polarity inversion circuit；
The polarity inversion circuit is connect with source electrode drive circuit and the N column data line respectively, is used for source electrode drive circuit
The source signal voltage of generation carries out polarity reversion, and exports into the data line, so that the pixel unit polarity inverts
Display.
2. driving circuit according to claim 1, which is characterized in that the polarity inversion circuit includes：Multiple polarity are anti-
Rotor circuit；The source electrode drive circuit includes：N column source signal line；
The quantity of the polarity reversion sub-circuit is the half of the data line quantity；
The input terminal of i-th of polarity reversion sub-circuit respectively with 2i-1 column source signal line and 2i column source signal line
It is connected；Its output end is connected with 2i-1 column data line and 2i column data line respectively, wherein
3. driving circuit according to claim 2, which is characterized in that i-th of polarity inverts sub-circuit and includes：Transmitting son electricity
Road and reversed sub-circuit；
The transmitting sub-circuit, respectively with first input end, the second input terminal, the first output end, second output terminal and the first pole
The connection of sex reversal control signal end provides the to the first output end under the control at the first polarity reverse control signal end
The signal of one input terminal provides the signal of the second input terminal to second output terminal；
The reversed sub-circuit, respectively with first input end, the second input terminal, the first output end, second output terminal and the second pole
The connection of sex reversal control signal end provides the to the first output end under the control at the second polarity reverse control signal end
The signal of two input terminals provides the signal of first input end to second output terminal；
Wherein, the first input end is connect with 2i-1 column source signal line, and second input terminal and 2i column source electrode are believed
The connection of number line, first output end are connect with 2i-1 column data line, and the second output terminal is connect with 2i column data line.
4. driving circuit according to claim 3, which is characterized in that the transmitting sub-circuit includes：The first transistor and
Second transistor；
The control electrode of the first transistor is connect with the first polarity reverse control signal end, the first pole and the first input
End connection, the second pole is connect with the first output end；
The control electrode of the second transistor is connect with the first polarity reverse control signal end, the first pole and the second input
End connection, the second pole is connect with second output terminal.
5. driving circuit according to claim 3, which is characterized in that the reversed sub-circuit includes：Third transistor and
4th transistor；
The control electrode of the third transistor is connect with the second polarity reverse control signal end, and the first pole and the second input terminal connect
It connects, the second pole is connect with the first output end；
The control electrode of 4th transistor is connect with the second polarity reverse control signal end, and the first pole and first input end connect
It connects, the second pole is connect with second output terminal.
6. driving circuit according to claim 3, which is characterized in that the transmitting sub-circuit includes：The first transistor and
Second transistor, the reversed sub-circuit include：Third transistor and the 4th transistor；
The control electrode of the first transistor is connect with the first polarity reverse control signal end, the first pole and the first input
End connection, the second pole is connect with the first output end；
The control electrode of the second transistor is connect with the first polarity reverse control signal end, the first pole and the second input
End connection, the second pole is connect with second output terminal；
The control electrode of the third transistor is connect with the second polarity reverse control signal end, and the first pole and the second input terminal connect
It connects, the second pole is connect with the first output end；
The control electrode of 4th transistor is connect with the second polarity reverse control signal end, and the first pole and first input end connect
It connects, the second pole is connect with second output terminal.
7. according to the described in any item driving circuits of claim 3~6, which is characterized in that the first polarity reversion control letter
Number end signal and the second polarity reverse control signal end signal be opposite in phase clock signal.
8. driving circuit according to claim 6, which is characterized in that the first transistor, the second transistor, institute
It is identical with the type of the 4th transistor to state third transistor, is P-type transistor or N-type transistor.
9. a kind of display device, which is characterized in that including：Driving circuit as described in any one of claims 1 to 8.
10. a kind of driving method using driving circuit driving display panel, which is characterized in that the driving circuit is wanted for right
1~8 described in any item driving circuits are sought, including：
The source signal voltage that polarity inversion circuit generates source electrode drive circuit carries out polarity reversion, and exports to data line
In, so that pixel unit polarity reverse display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108010.1A CN108922493A (en) | 2018-09-21 | 2018-09-21 | A kind of driving circuit and its driving method, display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108010.1A CN108922493A (en) | 2018-09-21 | 2018-09-21 | A kind of driving circuit and its driving method, display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108922493A true CN108922493A (en) | 2018-11-30 |
Family
ID=64409449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108010.1A Pending CN108922493A (en) | 2018-09-21 | 2018-09-21 | A kind of driving circuit and its driving method, display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108922493A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110210421A (en) * | 2019-06-05 | 2019-09-06 | 京东方科技集团股份有限公司 | A kind of imaging backboard and its driving method, fingerprint recognition panel |
| CN110349550A (en) * | 2019-07-18 | 2019-10-18 | 京东方科技集团股份有限公司 | Image element driving method and its circuit and display device |
| CN113257175A (en) * | 2021-05-11 | 2021-08-13 | Tcl华星光电技术有限公司 | Drive circuit, display panel and panel |
| CN113823238A (en) * | 2021-09-26 | 2021-12-21 | 惠科股份有限公司 | Driving circuit of display panel and display device |
| US11756478B2 (en) | 2021-05-11 | 2023-09-12 | Tcl China Star Optoelectronics Technology Co., Ltd. | Driving circuit, display panel, and panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973660A (en) * | 1996-08-20 | 1999-10-26 | Nec Corporation | Matrix liquid crystal display |
| CN1979626A (en) * | 2005-12-07 | 2007-06-13 | 恩益禧电子股份有限公司 | Display panel driver for reducing heat generation therein |
| CN104102035A (en) * | 2014-06-27 | 2014-10-15 | 京东方科技集团股份有限公司 | Array substrate and driving method thereof, as well as display device |
| US20160087627A1 (en) * | 2014-09-22 | 2016-03-24 | Dongbu Hitek Co., Ltd. | Output Buffer, and Source Driver and Display Device Including the Same |
| CN105869599A (en) * | 2016-06-08 | 2016-08-17 | 武汉天马微电子有限公司 | Array substrate and driving method thereof as well as display panel |
-
2018
- 2018-09-21 CN CN201811108010.1A patent/CN108922493A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973660A (en) * | 1996-08-20 | 1999-10-26 | Nec Corporation | Matrix liquid crystal display |
| CN1979626A (en) * | 2005-12-07 | 2007-06-13 | 恩益禧电子股份有限公司 | Display panel driver for reducing heat generation therein |
| CN104102035A (en) * | 2014-06-27 | 2014-10-15 | 京东方科技集团股份有限公司 | Array substrate and driving method thereof, as well as display device |
| US20160087627A1 (en) * | 2014-09-22 | 2016-03-24 | Dongbu Hitek Co., Ltd. | Output Buffer, and Source Driver and Display Device Including the Same |
| CN105869599A (en) * | 2016-06-08 | 2016-08-17 | 武汉天马微电子有限公司 | Array substrate and driving method thereof as well as display panel |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110210421A (en) * | 2019-06-05 | 2019-09-06 | 京东方科技集团股份有限公司 | A kind of imaging backboard and its driving method, fingerprint recognition panel |
| CN110210421B (en) * | 2019-06-05 | 2021-08-06 | 京东方科技集团股份有限公司 | Imaging backboard, driving method thereof and fingerprint identification panel |
| US11393241B2 (en) | 2019-06-05 | 2022-07-19 | Boe Technology Group Co., Ltd. | Imaging backplane, driving method thereof and fingerprint identification panel |
| CN110349550A (en) * | 2019-07-18 | 2019-10-18 | 京东方科技集团股份有限公司 | Image element driving method and its circuit and display device |
| CN113257175A (en) * | 2021-05-11 | 2021-08-13 | Tcl华星光电技术有限公司 | Drive circuit, display panel and panel |
| CN113257175B (en) * | 2021-05-11 | 2022-11-08 | Tcl华星光电技术有限公司 | Drive circuit, display panel and panel |
| US11756478B2 (en) | 2021-05-11 | 2023-09-12 | Tcl China Star Optoelectronics Technology Co., Ltd. | Driving circuit, display panel, and panel |
| CN113823238A (en) * | 2021-09-26 | 2021-12-21 | 惠科股份有限公司 | Driving circuit of display panel and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108922493A (en) | A kind of driving circuit and its driving method, display device | |
| CN102810303B (en) | Display device | |
| TWI436347B (en) | Liquid crystal display panel, liquid crystal display device, and method of driving a liquid crystal display device | |
| CN105047174B (en) | Shift register cell and its driving method, gate drive apparatus and display device | |
| KR101032948B1 (en) | Liquid crystal display and driving method thereof | |
| CN107065366B (en) | Array substrate and driving method thereof | |
| CN100443961C (en) | Liquid crystal display | |
| CN100451786C (en) | Liquid crystal display | |
| JP6332953B2 (en) | Array substrate, drive control method thereof, and display device | |
| KR102277072B1 (en) | GOA circuit driving architecture | |
| WO2015096385A1 (en) | Gate drive circuit, display apparatus and drive method | |
| TW201033709A (en) | Liquid crystal device with multi-dot inversion | |
| US20080150859A1 (en) | Liquid crystal display device and method of driving the same | |
| CN102982777A (en) | Grid driving circuit of display device, switch control circuit and shifting register | |
| TW200947405A (en) | Gate driving waveform control | |
| WO2017031944A1 (en) | Pixel unit driving circuit and method, and display device | |
| CN108257550A (en) | Pixel circuit and its driving method, array substrate, display panel | |
| CN105467639A (en) | Liquid crystal display panel and driving method thereof | |
| JP2006338027A (en) | Device and method for driving gate lines of flat display apparatus using shared circuit | |
| KR20160017390A (en) | Gate driver of display device | |
| JP2013083678A (en) | Display device | |
| CN103901685A (en) | Liquid crystal display | |
| KR20130062127A (en) | Iquid crystal display apparatus | |
| CN102629456A (en) | TFT-LCD display screen, TFT-LCD driver circuit and driving method thereof | |
| KR20150014247A (en) | 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181130 |
|
| WD01 | Invention patent application deemed withdrawn after publication |