CN106128387A - Liquid crystal display and scanning drive method thereof - Google Patents
Liquid crystal display and scanning drive method thereof Download PDFInfo
- Publication number
- CN106128387A CN106128387A CN201610753361.2A CN201610753361A CN106128387A CN 106128387 A CN106128387 A CN 106128387A CN 201610753361 A CN201610753361 A CN 201610753361A CN 106128387 A CN106128387 A CN 106128387A
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- Prior art keywords
- liquid crystal
- gate line
- signal
- gate
- diaphragm
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
Abstract
The invention discloses a kind of liquid crystal display, comprising: liquid crystal panel assembly, multiple gate drivers being installed on diaphragm and data driver；Liquid crystal panel assembly includes: by line direction extension and the most parallel a plurality of gate line, in column direction extension and the most parallel a plurality of data lines and multiple pixels of array arrangement, gate line is arranged in a crossed manner with data wire and isolates each other, and pixel is arranged at corresponding gate line and the infall of corresponding data wire；Gate line is connected with gate drivers, and data wire is connected with data driver, and the gate drivers that the gate line of odd-numbered line connects is arranged at the first side of liquid crystal panel assembly, and the gate drivers that the gate line of even number line connects is arranged at the second side of liquid crystal panel assembly.The present invention, by large-sized LCD uses bilateral grid interlock by the way of driving, improves display quality, thus solves the problem that picture display quality that prior art caused due to signal delay is the best.
Description
Technical field
The invention belongs to technical field of liquid crystal display, specifically, relate to a kind of liquid crystal display and turntable driving side thereof
Method.
Background technology
Along with the evolution of photoelectricity Yu semiconductor technology, also drive the fluffy of flat faced display (Flat Panel Display)
The exhibition of breaking out, and in many flat faced displays, liquid crystal display (Liquid Crystal Display, LCD) is because having high-altitude
Between many advantageous characteristic such as utilization ratio, low consumpting power, radiationless and low EMI, be applied to productive life
Various aspects.
In recent years, people become more and more to the performance of large-scale LCD and the requirement of outward appearance, such as high pixel density
(PPI), power saving, the healthy requirement such as eye protection, ultra-thin, narrow frame.But in existing large-scale LCD, use single side grid to drive
Dynamic device driving can also exist the problem of signal delay, i.e. side close to gate drivers, and signal is preferable, and from gate drivers
Remote side, dtr signal, thus cause the pixel undercharge of the side away from gate drivers, display is partially dark, final shadow
Ring the quality of display.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, it is an object of the invention to provide a kind of employing double side grid
The liquid crystal display driven and scanning drive method thereof.
According to an aspect of the present invention, it is provided that a kind of liquid crystal display, comprising: liquid crystal panel assembly, multiple installation
Gate drivers on diaphragm and data driver；Described liquid crystal panel assembly includes: by line direction extend and each other
Parallel a plurality of gate line, in column direction extension and the most parallel a plurality of data lines and multiple pictures of array arrangement
Element, described gate line is arranged in a crossed manner with described data wire and isolates each other, described pixel be arranged at corresponding gate line and
The infall of corresponding data wire；Described gate line is connected with the described gate drivers being installed on diaphragm, described data wire
Being connected with described data driver, the gate drivers being installed on diaphragm that the gate line of odd-numbered line connects is arranged at described liquid
First side of crystal panel assembly, the gate drivers being installed on diaphragm that the gate line of even number line connects is arranged at described liquid crystal
Second side relative with described first side of panel assembly.
Further, the gate drivers being installed on described on diaphragm controls the strange of clock signal according to odd even control signal
Several high level signals or the output of the high level signal of even number.
Further, when described odd even control signal is low level signal, what the gate line of odd-numbered line connected is installed on
Gate drivers on diaphragm the high level signal of the odd number of clock signal is exported；When described odd even control signal is high
During level signal, the gate drivers being installed on diaphragm that the gate line of even number line connects by the even number of clock signal
High level signal exports.
Further, each pixel includes: switching device, is connected to corresponding gate line and corresponding data wire；And
Liquid crystal capacitor, is connected to described switching device.
Further, each pixel PX also includes storing capacitor, and described storage capacitor is with described liquid crystal capacitor also
Connection connects.
Further, described switching device is thin film transistor (TFT), and described thin film transistor (TFT) includes: grid, source electrode and drain electrode,
Described grid is connected to corresponding gate line, and described source electrode is connected to corresponding data wire, and described drain electrode is connected to corresponding liquid
Brilliant capacitor.
According to a further aspect in the invention, additionally provide the scanning drive method of a kind of above-mentioned liquid crystal display, described
Scanning drive method includes: time schedule controller output clock signal is to the described gate drivers being installed on diaphragm；Described peace
The gate drivers being loaded on diaphragm controls high level signal or the idol of the odd number of clock signal according to odd even control signal
The output of several high level signals, to complete the turntable driving to gate line.
Beneficial effects of the present invention: the present invention comes large-sized LCD by the way of using bilateral grid to interlock and driving
It is scanned driving, improves display quality, thus solve the picture display product that prior art is caused due to signal delay
The problem that matter is the best.
Accompanying drawing explanation
By combining the following description that accompanying drawing is carried out, above and other aspect, feature and the advantage of embodiments of the invention
Will become clearer from, in accompanying drawing:
Fig. 1 shows the block diagram of LCD according to an embodiment of the invention；
Fig. 2 shows the circuit diagram of a pixel of the LCD shown in Fig. 1；
Fig. 3 shows the oscillogram of the gate line of turntable driving odd-numbered line according to an embodiment of the invention；
Fig. 4 shows the oscillogram of the gate line of turntable driving even number line according to an embodiment of the invention.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings to describe embodiments of the invention in detail.However, it is possible to come real in many different forms
Execute the present invention, and the present invention should not be construed as limited to the specific embodiment that illustrates here.On the contrary, it is provided that these are implemented
Example is to explain the principle of the present invention and actual application thereof, so that others skilled in the art are it will be appreciated that the present invention
Various embodiments and be suitable for the various amendments of specific intended application.
Fig. 1 shows the block diagram of LCD according to an embodiment of the invention.
Include with reference to Fig. 1, LCD: liquid crystal panel assembly 300；Gate drivers 400 and data driver 500, both of which is even
Receive liquid crystal panel assembly 300；And time schedule controller 100, it is used for controlling liquid crystal panel assembly 300, gate drivers 400 and
Data driver 500.
Liquid crystal panel assembly 300 include a plurality of display signal line and be connected to display signal line and by array arrangement multiple
Pixel PX.Liquid crystal panel assembly 300 may include that lower display floater (not shown) facing with each other and upper display floater (do not show
Go out), and the liquid crystal layer (not shown) being inserted between lower display floater and upper display floater.
Display signal line can be arranged on lower display floater.Display signal line can include transmitting a plurality of of signal
Gate lines G1To GnWith a plurality of data lines D transmitting data signal1To Dm.Gate lines G1To GnExtend by line direction and put down each other
OK, data wire D1To DmExtend in column direction and parallel to each other.
Each pixel PX includes: switching device, is connected to corresponding gate line and corresponding data wire；And liquid crystal capacitance
Device, is connected to this switching device.If necessary, each pixel PX can also include storing capacitor, and it is with liquid crystal capacitor also
Connection connects.
The switching device of each pixel PX can be thin film transistor (TFT), and therefore it has the grid being connected to respective gates line
Pole, it is connected to the source electrode of corresponding data line and is connected to the drain electrode of corresponding liquid crystal capacitor.
Fig. 2 shows the circuit diagram of a pixel of the LCD shown in Fig. 1.
With reference to Fig. 2, each pixel PX includes thin film transistor (TFT) T, liquid crystal capacitor Clc and storage capacitor Cst.
Thin film transistor (TFT) T is disposed in i-th (1≤i≤n) gate lines G LiWith jth (1≤j≤m) data wire DLjBetween
Intersection.The grid of thin film transistor (TFT) T is connected to the i-th gate lines G Li, the source electrode of thin film transistor (TFT) T is connected to jth data wire
DLj, the drain electrode of thin film transistor (TFT) T is connected to liquid crystal capacitor Clc and storage capacitor Cst.Liquid crystal capacitor Clc and storage electricity
Container Cst is connected in parallel.
With continued reference to Fig. 1, owing to the LCD of the present embodiment is large-scale LCD, therefore the present embodiment is in liquid crystal panel assembly
The opposite sides of 300 respectively sets a gate drivers 400, but the present invention is not restricted to this, such as can also be at liquid crystal panel
The opposite sides of assembly 300 respectively sets two gate drivers 400.Gate drivers 400 is installed on COF200, thus realizes
At diaphragm (or flexible PCB) upper installation gate drivers 400.One of two gate drivers 400 are connected to the grid of odd-numbered line
Polar curve G1、G3、……、G2N-1, another of two gate drivers 400 is connected to the gate lines G of even number line2、G4、……、G2N,
Wherein, N=n/2.Gate drivers 400 is to gate lines G1To GnApply signal (or claiming scanning signal).
Data driver 500 is connected to the data wire D of liquid crystal panel assembly 3001To Dm, and apply data electricity to pixel PX
Pressure.
Time schedule controller 100 control gate driver 400 and the operation of data driver 500.
Time schedule controller 100 receives received image signal (R, G and B) from external graphics controller (not shown) and is used for
Control multiple input control signals of the display of received image signal, such as vertical synchronizing signal Vsync, horizontal-drive signal
Hsync, master clock signal MCLK, data enable signal DE.Time schedule controller 100 suitably processes input according to input control signal
Picture signal (R, G and B), thus produce view data DAT of the operating condition meeting liquid crystal panel assembly 300.Then, sequential
Controller 100 produces grid control signal CONT1 and data controlling signal CONT2, and grid control signal CONT1 is sent to grid
Driver 400, and data controlling signal CONT2 and view data DAT are sent to data driver 500.
Grid control signal CONT1 may include that scanning initial signal STV, for starting the behaviour of gate drivers 400
Make, i.e. scan operation；And at least one clock signal CKV.In the present embodiment, clock signal CKV is by the square-wave signal cycle
Property composition, i.e. clock signal is alternately made up of multiple high level signals and multiple low level signal.
Data controlling signal CONT2 may include that horizontal synchronization commencing signal STH, the biography of its instruction view data DAT
Defeated；Loading signal LOAD, its request is to data wire D1To DmApply the data voltage corresponding with view data DAT；And during data
Clock signal HCLK.Data controlling signal CONT2 can also include reverse signal RVS, for reversal data voltage relative to public
The polarity of voltage Vcom.
Data driver 500 receives view data DAT in response to data controlling signal CONT2 from time schedule controller 100, choosing
Select the grayscale voltage corresponding with view data DAT and view data is converted to data voltage.Then, data driver 500 will
Data voltage is applied to data wire D1To Dm。
Gate drivers 400 passes through in response to grid control signal CONT1 to gate lines G1To GnApply signal (example
Such as high level signal), thus conducting is connected to gate lines G1To GnSwitching device.Then, data wire D it is applied to1To DmNumber
Liquid crystal capacitor (and/or storage capacitor) it is sent to by the switching device of conducting according to voltage.
It is applied to the difference between the data voltage of each pixel PX and common electric voltage Vcom to be construed as and utilize it
The voltage that the liquid crystal capacitor of each pixel PX is charged, i.e. pixel voltage.The arrangement of the liquid crystal molecule in liquid crystal layer is according to picture
The element amplitude of voltage and change, the polarity of the light transmitted thereby through liquid crystal layer can also change, thus causes the saturating of liquid crystal layer
Penetrate the change of rate.
Below to gate drivers 400 how to gate lines G1To GnApply signal to illustrate.Gate drivers
400 control the high level signal of odd number or the even number of clock signal CKV according to odd even control signal ON of its storage inside
The output of individual high level signal, thus complete gate lines G1To GnApply signal.Specifically refer to Fig. 3 and Fig. 4.
Fig. 3 shows the oscillogram of the gate line of turntable driving odd-numbered line according to an embodiment of the invention.Fig. 4 shows
The oscillogram of the gate line of turntable driving even number line according to an embodiment of the invention.
With reference to Fig. 3, after the rising edge of scanning initial signal STV being detected, when gate drivers 400 storage inside
When odd even control signal ON is low level signal, the gate drivers 400 being installed on diaphragm that the gate line of odd-numbered line connects
The high level signal of the odd number of clock signal CKV is exported, thus provide the gate lines G to odd-numbered line1、G3、……、
G2N-1, to complete the turntable driving of the gate line to odd-numbered line.
With reference to Fig. 4, after the rising edge of scanning initial signal STV being detected, when gate drivers 400 storage inside
When odd even control signal ON is high level signal, the gate drivers 400 being installed on diaphragm that the gate line of even number line connects
The high level signal of the even number of clock signal CKV is exported, thus provide the gate lines G to even number line2、G4、……、
G2N, to complete the turntable driving of the gate line of antithesis several rows.
In sum, according to embodiments of the invention, come large scale by the way of driving by using bilateral grid to interlock
LCD be scanned driving, improve display quality, thus solve the picture that prior art caused due to signal delay and show
The problem showing bad.
Although illustrate and describing the present invention with reference to specific embodiment, but it should be appreciated by those skilled in the art that:
In the case of without departing from the spirit and scope of the present invention limited by claim and equivalent thereof, can carry out at this form and
Various changes in details.
Claims (10)
1. a liquid crystal display, it is characterised in that including: liquid crystal panel assembly, multiple raster data model being installed on diaphragm
Device and data driver；
Described liquid crystal panel assembly includes: extends by line direction and the most parallel a plurality of gate line, extends in column direction
And the most parallel a plurality of data lines and multiple pixels of array arrangement, described gate line intersects with described data wire and sets
Putting and isolate each other, described pixel is arranged at corresponding gate line and the infall of corresponding data wire；
Described gate line is connected with the described gate drivers being installed on diaphragm, and described data wire is with described data driver even
Connecing, the gate drivers being installed on diaphragm that the gate line of odd-numbered line connects is arranged at the first of described liquid crystal panel assembly
Side, the gate drivers being installed on diaphragm that the gate line of even number line connects be arranged at described liquid crystal panel assembly with described
The second side that first side is relative.
Liquid crystal display the most according to claim 1, it is characterised in that described in the gate drivers root that is installed on diaphragm
The high level signal of the odd number of clock signal or the output of the high level signal of even number is controlled according to odd even control signal.
Liquid crystal display the most according to claim 2, it is characterised in that when described odd even control signal is low level signal
Time, the gate drivers being installed on diaphragm that the gate line of odd-numbered line connects the high level of the odd number of clock signal is believed
Number output；When described odd even control signal is high level signal, the grid being installed on diaphragm that the gate line of even number line connects
Driver the high level signal of the even number of clock signal is exported.
Liquid crystal display the most according to claim 1, it is characterised in that each pixel includes:
Switching device, is connected to corresponding gate line and corresponding data wire；And
Liquid crystal capacitor, is connected to described switching device.
Liquid crystal display the most according to claim 4, it is characterised in that each pixel PX also includes storing capacitor, institute
State storage capacitor to be connected in parallel with described liquid crystal capacitor.
6. according to the liquid crystal display described in claim 1 or 4, it is characterised in that described switching device is thin film transistor (TFT), institute
Stating thin film transistor (TFT) to include: grid, source electrode and drain electrode, described grid is connected to corresponding gate line, and described source electrode is connected to phase
The data wire answered, described drain electrode is connected to corresponding liquid crystal capacitor.
7. the scanning drive method of the liquid crystal display described in a claim 1, it is characterised in that described scanning drive method
Including:
Time schedule controller output clock signal is to the described gate drivers being installed on diaphragm；
The described gate drivers being installed on diaphragm controls the high level of the odd number of clock signal according to odd even control signal
The output of the high level signal of signal or even number, to complete the turntable driving to gate line.
Scanning drive method the most according to claim 7, it is characterised in that when described odd even control signal is low level letter
Number time, the high level by the odd number of clock signal of the gate drivers being installed on diaphragm that the gate line of odd-numbered line connects
Signal exports；When described odd even control signal is high level signal, what the gate line of even number line connected is installed on diaphragm
Gate drivers the high level signal of the even number of clock signal is exported.
Scanning drive method the most according to claim 7, it is characterised in that each pixel includes:
Switching device, is connected to corresponding gate line and corresponding data wire；
Liquid crystal capacitor, is connected to described switching device；And
Storage capacitor, described storage capacitor is connected in parallel with described liquid crystal capacitor.
Scanning drive method the most according to claim 9, it is characterised in that described switching device is thin film transistor (TFT), institute
Stating thin film transistor (TFT) to include: grid, source electrode and drain electrode, described grid is connected to corresponding gate line, and described source electrode is connected to phase
The data wire answered, described drain electrode is connected to corresponding liquid crystal capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610753361.2A CN106128387A (en) | 2016-08-29 | 2016-08-29 | Liquid crystal display and scanning drive method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610753361.2A CN106128387A (en) | 2016-08-29 | 2016-08-29 | Liquid crystal display and scanning drive method thereof |
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| CN106128387A true CN106128387A (en) | 2016-11-16 |
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| CN201610753361.2A Pending CN106128387A (en) | 2016-08-29 | 2016-08-29 | Liquid crystal display and scanning drive method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036303A (en) * | 2018-07-24 | 2018-12-18 | 武汉华星光电技术有限公司 | Goa circuit and display device |
| CN109192121A (en) * | 2018-09-28 | 2019-01-11 | 武汉天马微电子有限公司 | Display panel and display device |
| CN109523970A (en) * | 2018-12-24 | 2019-03-26 | 惠科股份有限公司 | Display module and display device |
| CN110060652A (en) * | 2019-06-10 | 2019-07-26 | 北海惠科光电技术有限公司 | Array substrate, display device and its driving method |
| CN111564132A (en) * | 2020-05-29 | 2020-08-21 | 厦门天马微电子有限公司 | Shift register, display panel and display device |
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| JP2004240263A (en) * | 2003-02-07 | 2004-08-26 | Casio Comput Co Ltd | Display driving device and its drive control method |
| CN1573459A (en) * | 2003-06-23 | 2005-02-02 | 三星电子株式会社 | Display driving device and method and liquid crystal display apparatus having the same |
| CN101359143A (en) * | 2008-09-27 | 2009-02-04 | 上海广电光电子有限公司 | Liquid crystal display device and driving method thereof |
| CN105741806A (en) * | 2016-04-18 | 2016-07-06 | 深圳市华星光电技术有限公司 | LCD and driving method thereof |
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| JPH05158439A (en) * | 1991-12-03 | 1993-06-25 | Toshiba Corp | Liquid crystal display device |
| JP2004240263A (en) * | 2003-02-07 | 2004-08-26 | Casio Comput Co Ltd | Display driving device and its drive control method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036303A (en) * | 2018-07-24 | 2018-12-18 | 武汉华星光电技术有限公司 | Goa circuit and display device |
| CN109192121A (en) * | 2018-09-28 | 2019-01-11 | 武汉天马微电子有限公司 | Display panel and display device |
| CN109192121B (en) * | 2018-09-28 | 2021-09-28 | 武汉天马微电子有限公司 | Display panel and display device |
| CN109523970A (en) * | 2018-12-24 | 2019-03-26 | 惠科股份有限公司 | Display module and display device |
| CN110060652A (en) * | 2019-06-10 | 2019-07-26 | 北海惠科光电技术有限公司 | Array substrate, display device and its driving method |
| CN111564132A (en) * | 2020-05-29 | 2020-08-21 | 厦门天马微电子有限公司 | Shift register, display panel and display device |
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Application publication date: 20161116 |