CN101751896A - Liquid crystal display device and driving method thereof - Google Patents

Liquid crystal display device and driving method thereof Download PDF

Info

Publication number
CN101751896A
CN101751896A CN 201010118719 CN201010118719A CN101751896A CN 101751896 A CN101751896 A CN 101751896A CN 201010118719 CN201010118719 CN 201010118719 CN 201010118719 A CN201010118719 A CN 201010118719A CN 101751896 A CN101751896 A CN 101751896A
Authority
CN
China
Prior art keywords
picture element
element unit
line
data
gate
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.)
Granted
Application number
CN 201010118719
Other languages
Chinese (zh)
Other versions
CN101751896B (en
Inventor
翁明齐
陈鸿祥
朱益男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CPTF Optronics Co Ltd
Chunghwa Picture Tubes Ltd
Original Assignee
CPTF Optronics Co Ltd
Chunghwa Picture Tubes Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CPTF Optronics Co Ltd, Chunghwa Picture Tubes Ltd filed Critical CPTF Optronics Co Ltd
Priority to CN 201010118719 priority Critical patent/CN101751896B/en
Publication of CN101751896A publication Critical patent/CN101751896A/en
Application granted granted Critical
Publication of CN101751896B publication Critical patent/CN101751896B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention relates to a liquid crystal display device, which comprises a plurality of grid lines, a plurality of master data lines and secondary data lines, a switch circuit and a pixel array, wherein each grid line is used for transmitting a plurality of grid drive signals, and the master data lines and secondary data lines are respectively used for transmitting a plurality of data drive signals; the switch circuit controls the paths of a plurality of data drive signals transmitting to a plurality of secondary data lines according to a control signal, and the pixel array comprises a plurality of first and second pixel units; and each first pixel unit displays a picture according to a grid drive signal transmitted corresponding to the grid line and a data drive signal transmitted corresponding to the master data line, and each second pixel unit displays a picture according to a grid drive signal transmitted corresponding to the grid line and a data drive signal transmitted corresponding to the secondary data line. The liquid crystal display device has simple driving method, and can adjust the precharging and main charging time of the pixel units according to the polarity of data, thereby improving display quality.

Description

Liquid crystal indicator and driving method thereof
Technical field
The present invention is relevant to a kind of liquid crystal indicator and driving method thereof, refers to a kind of liquid crystal indicator and driving method thereof of tool picture element level multi-task framework especially.
Background technology
LCD (liquidcrystaldisplay, LCD) have low radiation, volume is little and advantage such as low power consuming, replace traditional cathode-ray tube (CRT) (cathoderaytube gradually, CRT) display, and then be widely used in mobile computer, personal digital assistant (personaldigitalassistant, PDA), flat-surface television, or on the information products such as mobile phone.
Please refer to Fig. 1, Fig. 1 is the synoptic diagram of a liquid crystal indicator 100 in the prior art.Liquid crystal indicator 100 comprises a display panels 110, one source pole driving circuit (sourcedriver) 120, a gate drive circuit (gatedriver) 130, and time schedule controller (timingcontroller) 140.Display panels 110 is provided with 2M bar data line DL 1～DL 2M, N bar gate line GL 1～GL N, and a picture element matrix.The picture element matrix comprises N picture element unit of (2M) *, the 1st to N row picture element unit respectively by PX 1～PX NRepresent that each picture element unit comprises a thin film transistor (TFT) (thinfilmtransistor, TFT) switching TFT, a liquid crystal capacitance C LCWith a storage capacitors C ST, be respectively coupled to a corresponding data line, a corresponding gate line, and a common voltage V COM Time schedule controller 140 can produce source electrode drive circuit 120 and the required controlling signal of gate drive circuit 130 runnings, for example initial pulse signal VST, horizontal synchronization signal HSYNC and vertical synchronizing signal VSYNC etc.Gate drive circuit 130 can be exported gate trigger signal S respectively according to initial pulse signal VST and vertical synchronizing signal VSYNC etc. G1～S GNTo gate line GL 1～GL N, and then open thin film transistor switch TFT in the corresponding row picture element unit.Source electrode drive circuit 120 can be exported data-driven signal SD corresponding to the image gray scale value respectively according to horizontal synchronization signal HSYNC etc. 1～SD 2MTo data line DL 1～DL 2M, and then the liquid crystal capacitance C in the corresponding capable picture element unit that charges LCWith storage capacitors C ST
Please refer to Fig. 2, Fig. 2 is the synoptic diagram of the driving method of prior art liquid crystal indicator 100.Fig. 2 has shown system frequency signal VCK and gate trigger signal S G1～S GNWaveform.The data-driven signal is in gate trigger signal SG 1～SG NWrite corresponding picture element unit, wherein gate trigger signal SG during tool activation current potential (for example noble potential) 1～SG NThe activation cycle respectively by T 1～T NRepresent.When driving the liquid crystal indicator 100 of prior art, gate trigger signal S G1～S GNDifference is activation gate line GL in regular turn 1～GL N: as gate line GL 1When being enabled, see through data line DL respectively 1～DL 2MSend in regular turn corresponding to the first row picture element unit PX 1Desire the data-driven signal SD of show image 1～SD 2MAs gate line GL 2When being enabled, see through data line DL respectively 1～DL 2MSend in regular turn corresponding to secondary series picture element unit PX 2Desire the data-driven signal SD of show image 1～SD 2M As gate line GL NWhen being enabled, see through data line DL respectively 1～DL 2MSend in regular turn corresponding to N row picture element unit PX NDesire the data-driven signal SD of show image 1～SD 2MFormerly in the liquid crystal indicator 100 of technology, each picture element unit is the data signals that the data line in its left side of reception transmits, and (2M) * can be provided the resolution of N.Therefore, see through the number 2M that increases data line and can promote picture element resolution, but source electrode drive circuit 120 also needs more output channel can be provided.In large scale or high-resolution application, the liquid crystal indicator 100 of prior art often needs to use many group source electrode drive circuits, so can increase production cost.On the other hand, in frequency applications, the frequency of system frequency signal VCK accelerates, gate trigger signal SG 1～SG NThe activation period T 1～T NAlso can shorten, so the picture element unit can't reach desirable accurate position easily because of the duration of charging is not enough, and then influence display quality.
Please refer to Fig. 3, Fig. 3 is the synoptic diagram of another liquid crystal indicator 200 in the prior art.Liquid crystal indicator 200 comprises a display panels 210, one source pole driving circuit 220, a gate drive circuit 230, and time schedule controller 240.Display panels 210 is provided with M bar data line DL 1～DL M, N bar gate line GL 1～GL N, and a picture element matrix.The picture element matrix comprises N picture element unit of (2M) *, and (M*N) individual picture element unit of being located at the data line left side is by PX ARepresent, and (M*N) individual picture element unit of being located at the data line right side is by PX BRepresent.Each picture element unit PX AComprise a thin film transistor switch TFT1, a liquid crystal capacitance C LCWith a storage capacitors C ST, be respectively coupled to a corresponding data line, a corresponding gate line, and a common voltage V COMEach picture element unit PX BComprise two thin film transistor switch TFT2 and TFT3, a liquid crystal capacitance C LCWith a storage capacitors C ST, be respectively coupled to a corresponding data line, two corresponding gate lines, and a common voltage V COM Time schedule controller 240 can produce source electrode drive circuit 220 and the required controlling signal of gate drive circuit 230 runnings, for example initial pulse signal VST, horizontal synchronization signal HSYNC and vertical synchronizing signal VSYNC etc.Gate drive circuit 230 can be exported gate trigger signal S respectively according to initial pulse signal VST and vertical synchronizing signal VSYNC etc. G1～S GNTo gate line GL 1～GL N, and then open thin film transistor switch in the corresponding picture element unit.Source electrode drive circuit 220 can be exported data-driven signal SD corresponding to the image gray scale value respectively according to horizontal synchronization signal HSYNC etc. 1～SD MTo data line DL 1～DL M, and then the liquid crystal capacitance C in the corresponding capable picture element unit that charges LCWith storage capacitors C ST
Please refer to Fig. 4, Fig. 4 is the synoptic diagram of the driving method of prior art liquid crystal indicator 200.Fig. 4 has shown system frequency signal VCK and gate trigger signal S G1～S GNWaveform, wherein the data-driven signal is in gate trigger signal SG 1～SG NWrite corresponding picture element unit during tool activation current potential (for example noble potential).To be coupled to gate line GL nN row picture element unit be example (n is the positive integer that is not more than N), gate line GL nAnd GL N+1Need be enabled simultaneously and data could be write picture element unit PX B, if gate line GL is only arranged nThe data that are enabled only can write picture element unit PX AAs shown in Figure 4, when driving prior art liquid crystal indicator 200, data writing process comprises 5 period T N1～T N5, T wherein N4Be picture element unit PX BMain charge cycle, T N5Be picture element unit PX AMain charge cycle, T N1Be picture element unit PX BPrecharge cycle, and T N1, T N2And T N4Be picture element unit PX APrecharge cycle.
Liquid crystal indicator 200 adopts the picture element level multi-task, and (per two row picture elements are shared a data line, wherein picture element unit PX for pixellevelmultiplexing, PLM) framework ABe to receive the data signals that the data line on its right side transmits, and picture element unit PX BBe to receive the data signals that the data line in its left side transmits, therefore only need use M bar data line and N bar gate line that (2M) * can be provided the resolution of N.Yet, for data correctly being write picture element unit PX AOr PX B, picture element unit PX BNeed comprise two cluster film transistor switch TFT2 and TFT3, therefore can reduce the aperture opening ratio of picture element, often need to improve backlight intensity and just can keep brightness, not only the processing procedure complexity also can increase power consumption.On the other hand, the type of drive of the liquid crystal indicator 200 of prior art is quite complicated, and need 5 system frequency signal VCK cycles just can finish data and write, so can increase the driving time of whole image, under the situation of sweep frequency deficiency, influence display quality easily.
Summary of the invention
In view of the deficiency of above-mentioned technology, the purpose of this invention is to provide a kind of liquid crystal indicator, it comprises a plurality of gate lines, is used for transmitting the complex gate trigger signal respectively; A plurality of main data line perpendicular to these a plurality of gate lines, are used for transmitting complex data-driven signal respectively; A plurality of secondary data lines perpendicular to these a plurality of gate lines, are used for transmitting this complex data-driven signal respectively; One on-off circuit, it controls the path that this complex data-driven signal is sent to these a plurality of secondary data lines according to a controlling signal; An and picture element array.This picture element array comprises a plurality of first picture element unit, be arranged at the confluce of these a plurality of gate lines and these a plurality of master file lines respectively, the data-driven signal that the corresponding main data line with of gate trigger signal that each first picture element unit transmits according to a corresponding gate line transmits comes display frame; And a plurality of second picture element unit, be arranged at the confluce of these a plurality of gate lines and this a plurality of times data line respectively, the data-driven signal that the corresponding secondary data line with of gate trigger signal that each second picture element unit transmits according to a corresponding gate line transmits comes display frame.
The present invention provides a kind of driving method of liquid crystal indicator in addition, and this liquid crystal indicator comprises a gate line; One master file line is perpendicular to this gate line; A data line is perpendicular to this gate line; One first picture element unit is arranged at the confluce of this gate line and this master file line; And one second picture element unit, be arranged at the confluce of this gate line and this time data line.This driving method comprises the one first data-driven signal that tool first polarity is provided according to the GTG of this first picture element unit desire show image; One second data-driven signal of tool second polarity is provided according to the GTG of this second picture element unit desire show image; In one first activation cycle, open this first picture element unit and this second picture element unit simultaneously; In the one second activation cycle of all after dates of this first activation of continuing, open this first picture element unit; In this first activation cycle, export this second data-driven signal to this main data line and this secondary data line, and then charging is led in this second picture element unit, and this first picture element unit is carried out precharge; In this second activation cycle, export this first data-driven signal to this main data line, and then charging is led in this first picture element unit; And the length of adjusting this first and second activations cycle according to this first polarity and this second polarity.
The present invention provides a kind of driving method of liquid crystal indicator in addition, and this liquid crystal indicator comprises one first gate line, one second gate line and one the 3rd gate line; One master file line, perpendicular to this first gate line to the 3rd gate line; A data line, perpendicular to this first gate line to the 3rd gate line; One first picture element unit is arranged at the confluce of this first gate line and this master file line; One second picture element unit is arranged at the confluce of this first gate line and this time data line; One the 3rd picture element unit is arranged at the confluce of this second gate line and this master file line; One the 4th picture element unit is arranged at the confluce of this second gate line and this time data line; One the 5th picture element unit is arranged at the confluce of the 3rd gate line and this master file line; And one the 6th picture element unit, be arranged at the confluce of the 3rd gate line and this time data line.The GTG that this method comprises according to this first picture element unit to the 6th picture element unit desire show image provides one first data-driven signal to the 6th data-driven signal respectively; In one first activation cycle, open this first picture element unit, this second picture element unit, the 5th picture element unit and the 6th picture element unit simultaneously; In the one second activation cycle of all after dates of this first activation of continuing, open this first picture element unit and this second picture element unit simultaneously; This second data-driven signal of output is to this main data line and this secondary data line in this first activation cycle, and then this second picture element unit led charging, and this first picture element unit, the 5th picture element unit and the 6th picture element unit are carried out precharge; And in this second activation cycle, export this first data-driven signal, and then charging is led in this first picture element unit to this main data line.
Description of drawings
Fig. 1 is the synoptic diagram of a liquid crystal indicator in the prior art.
Fig. 2 is the synoptic diagram of the driving method of prior art liquid crystal indicator.
Fig. 3 is the synoptic diagram of another liquid crystal indicator in the prior art.
Fig. 4 is the synoptic diagram of the driving method of prior art liquid crystal indicator.
Fig. 5 is the synoptic diagram of a liquid crystal indicator among the present invention.
Fig. 6 is the synoptic diagram of the driving method of liquid crystal indicator in the first embodiment of the invention.
Fig. 7 is the synoptic diagram of the driving method of liquid crystal indicator in the second embodiment of the invention.
 
[primary clustering symbol description]
 
C LCLiquid crystal capacitance SW 1～SW MSwitch
C STStorage capacitors 100,200,300 liquid crystal indicators
V COMCommon voltage 110,210,310 display panels
350 control circuits, 120,220,320 source electrode drive circuits
360 on-off circuits, 130,230,330 gate drive circuits
GL 1～GL NGate line 140,240,340 time schedule controllers
TFT, TFT1～TFT3 thin film transistor switch
DL 1～DL 2M, DL 1～DL M, DL 1'～DL M' data line
PX A, PX B, PX 1～PX N, PX A1～PX AN, PX B1～PX BNThe picture element unit.
Embodiment
Please refer to Fig. 5, Fig. 5 is the synoptic diagram of the liquid crystal indicator 300 of tool picture element level multi-task framework among the present invention.Liquid crystal indicator 300 comprises a display panels 310, one source pole driving circuit 320, a gate drive circuit 330, time schedule controller 340, and a control circuit 350.Display panels 310 is provided with M bar master file line DL 1～DL M, M bar time data line DL 1'～DL M', N bar gate line GL 1～GL N, an on-off circuit 360, an and picture element matrix.The picture element matrix comprises N picture element unit of (2M) *, is coupled to main data line DL 1～DL M(M*N) individual picture element unit by PX A1～PX ANRepresent, and be coupled to time data line DL 1'～DL M' (M*N) individual picture element unit by PX B1～PX BNRepresent.Each picture element unit comprises a thin film transistor switch TFT, a liquid crystal capacitance C LCWith a storage capacitors C ST, be respectively coupled to a corresponding main data line or a corresponding secondary data line, a corresponding gate line, and a common voltage V COM Time schedule controller 340 can produce source electrode drive circuit 320, gate drive circuit 330 and the required controlling signal of control circuit 350 runnings, for example initial pulse signal VST, horizontal synchronization signal HSYNC, vertical synchronizing signal VSYNC etc.Gate drive circuit 330 can be exported gate trigger signal SG respectively according to initial pulse signal VST and vertical synchronizing signal VSYNC etc. 1～SG NTo gate line GL 1～GL N, and then open thin film transistor switch TFT in the corresponding row picture element unit.Source electrode drive circuit 320 can be exported data-driven signal SD corresponding to the image gray scale value respectively according to horizontal synchronization signal HSYNC etc. 1～SD MTo main data line DL 1～DL M, and then the liquid crystal capacitance C in the corresponding capable picture element unit that charges LCWith storage capacitors C STOn the other hand, on-off circuit 360 comprises M switch SW 1～SW M, can control source electrode drive circuit 320 according to the switch controlling signal CTL that control circuit 350 transmits and transmit data-driven signal SD 1～SD MTo secondary data line DL 1'～DL M' the path.In an embodiment of the present invention, switch SW 1～SW MCan be the assembly of thin film transistor switch or other tool similar functions.
Please refer to Fig. 6, Fig. 6 is the synoptic diagram of the driving method of liquid crystal indicator 300 in the first embodiment of the invention.Fig. 6 has shown system frequency signal VCK, controlling signal CTL and gate trigger signal SG 1～SG NWaveform.The data-driven signal is in gate trigger signal SG 1～SG NWrite corresponding picture element unit, wherein gate trigger signal SG during tool activation current potential (for example noble potential) 1～SG NThe activation cycle respectively by (TB 1+ TA 1)～(TB N+ TA N) represent.With the 1st row picture element unit PX A1And PX B1Be example, at period T B 1Inner control signal CTL and gate trigger signal SG 1Tool activation current potential, switch SW 1～SW MCan be unlocked data-driven signal SD 1～SD MCan see through main data line DL respectively 1～DL MAnd be written into corresponding picture element unit PX A1In, can see through secondary data line DL respectively simultaneously 1'～DL M' and be written into corresponding picture element unit PX B1In, the data-driven signal SD of source electrode drive circuit 220 outputs this moment 1～SD MBe relevant to corresponding picture element unit PX respectively B1Desire the GTG of show image, so period T B 1Be the 1st row picture element unit PX B1Main charge cycle, be the 1st row picture element unit PX simultaneously A1Precharge cycle; Then at period T A 1Inner control signal CTL can switch to decapacitation current potential (for example electronegative potential), at this moment switch SW 1～SW MCan be closed data-driven signal SD 1～SD MOnly can see through main data line DL respectively 1～DL MAnd be written into corresponding picture element unit PX A1In, the data-driven signal SD of source electrode drive circuit 220 outputs this moment 1～SD MBe relevant to corresponding picture element unit PX respectively A1Desire the GTG of show image, so period T A 1Be the 1st row picture element unit PX AMain charge cycle writes picture element unit PX during this section A1Data can cover before in precharge cycle TB 1In the data that write; In like manner, at the 2nd row picture element unit PX A2And PX B2, period T B 2Be picture element unit PX B2Main charge cycle and picture element unit PX A2Precharge cycle, and period T A 2Be picture element unit PX A2Main charge cycle; The rest may be inferred, at N row picture element unit PX ANAnd PX BN, period T B NBe picture element unit PX BNMain charge cycle and picture element unit PX ANPrecharge cycle, and period T A NBe picture element unit PX ANMain charge cycle.
If drive liquid crystal indicator 300 in counter-rotating (dotinversion) mode, be coupled to master file line DL 1～DL MWith secondary data line DL 1'～DL M' the picture element unit need to drive with opposite polarity.Because when the data of positive polarity write picture element unit PX B1～PX BNThe time simultaneously can be to picture element unit PX A1～PX ANCarry out precharge, so as picture element unit PX A1～PX ANWhen its main charge cycle writes the data of negative polarity, may have the problem of undercharge.On the other hand, if be coupled to master file line DL 1～DL MWith secondary data line DL 1'～DL M' the picture element unit be to drive with identical polar owing to write picture element unit PX B1～PX BNThe time the same polarity data can be to picture element unit PX A1～PX ANCarry out precharge, so picture element unit PX A1～PX ANMain charge cycle then can shorten.In the driving method of first embodiment of the invention shown in Figure 6, controlling signal CTL is an adjustable signal, can see through its responsibility cycle of adjustment and come control data to write picture element unit PX A1～PX ANAnd PX B1～PX BNTime length.For instance, when the responsibility cycle (dutycycle) of controlling signal CTL is 50%, picture element unit PX A1Identical (the TA for example of main charge cycle with precharge cycle length 1=TB 1); When the responsibility cycle of controlling signal CTL is 25%, picture element unit PX A2Main charge cycle be shorter than precharge cycle (TB for example 2＜TA 2); When the responsibility cycle of controlling signal CTL is 75%, picture element unit PX A3Main charge cycle be longer than precharge cycle (TB for example 3TA 3).
Please refer to Fig. 7, Fig. 7 is the synoptic diagram of the driving method of liquid crystal indicator 300 in the second embodiment of the invention.Fig. 7 has shown system frequency signal VCK, controlling signal CTL and gate trigger signal SG 1～SG NWaveform.The data-driven signal is in gate trigger signal SG 1～SG NWrite corresponding picture element unit, wherein gate trigger signal SG during tool activation current potential (for example noble potential) 1～SG NThe activation cycle respectively by (TA 1+ TB 1+ TC 1)～(TA N+ TB N+ TC N) represent.With the 1st row picture element unit PX A1And PX B1With the 3rd row picture element unit PX A3And PX B3Be example, at period T B 1Inner control signal CTL and gate trigger signal SG 1, SG 3Tool activation level switch SW 1～SW MCan be unlocked data-driven signal SD 1～SD MCan see through main data line DL respectively 1～DL MAnd be written into corresponding picture element unit PX A1And PX A3In, see through secondary data line DL simultaneously respectively 1'～DL M' and be written into corresponding picture element unit PX B1And PX B3In, the data-driven signal SD of source electrode drive circuit 320 outputs this moment 1～SD MBe relevant to corresponding picture element unit PX respectively B1Desire the GTG of show image, so period T B 1Be picture element unit PX B1Main charge cycle, and be picture element unit PX A1, PX A3And PX B3Precharge cycle; Then at period T A 1Inner control signal CTL and gate trigger signal S G3Can switch to decapacitation current potential (for example electronegative potential), at this moment switch SW 1～SW MCan be closed data-driven signal SD 1～SD MOnly can see through main data line DL respectively 1～DL MAnd be written into corresponding picture element unit PX A1In, the data-driven signal SD of source electrode drive circuit 320 outputs this moment 1～SD MBe relevant to corresponding picture element unit PX respectively A1Desire the GTG of show image, so period T A 1Be picture element unit PX A1Main charge cycle writes picture element unit PX during this section A1Data can cover before in precharge cycle TB 1In the data that write; In like manner, at the 2nd row picture element unit PX A2And PX B2With the 4th row picture element unit PX A4And PX B4, period T B 2Be picture element unit PX B2Main charge cycle and picture element unit PX A2, PX A4And PX B4Precharge cycle, and period T A 2Be picture element unit PX A2Main charge cycle; At the 3rd row picture element unit PX A3And PX B3With the 5th row picture element unit PX A5And PX B5, period T B 3Be picture element unit PX B3Main charge cycle and picture element unit PX A3, PX A5And PX B5Precharge cycle, and period T A 3Be picture element unit PX A3Main charge cycle; The rest may be inferred, up to the data that writes whole image.
Liquid crystal indicator 300 of the present invention adopts the PLM framework, utilizes M bar main data line, M bar secondary data line and N bar gate line that (2M) * is provided the resolution of N.Simultaneously, liquid crystal indicator 300 of the present invention utilizes on-off circuit to come control data to drive the path that signal is sent to main data line and secondary data line, so source electrode drive circuit only need comprise M passage, and each picture element unit only need comprise a TFT switch.PLM liquid crystal indicator of the present invention need not use complicated type of drive, and can adjust the precharge and the main duration of charging of picture element unit according to data polarity, and then promotes display quality.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.

Claims (10)

1. liquid crystal indicator is characterized in that comprising:
A plurality of gate lines are used for transmitting the complex gate trigger signal respectively;
A plurality of main data line perpendicular to these a plurality of gate lines, are used for transmitting complex data-driven signal respectively;
A plurality of secondary data lines perpendicular to these a plurality of gate lines, are used for transmitting this complex data-driven signal respectively;
One picture element array, it comprises:
A plurality of first picture element unit, be arranged at the confluce of these a plurality of gate lines and these a plurality of master file lines respectively, the data-driven signal that the corresponding main data line with of gate trigger signal that each first picture element unit transmits according to a corresponding gate line transmits comes display frame; And
A plurality of second picture element unit, be arranged at the confluce of these a plurality of gate lines and this a plurality of times data line respectively, the data-driven signal that the corresponding secondary data line with of gate trigger signal that each second picture element unit transmits according to a corresponding gate line transmits comes display frame; And
One on-off circuit, it controls the path that this complex data-driven signal is sent to these a plurality of secondary data lines according to a controlling signal.
2. liquid crystal indicator according to claim 1 is characterized in that further comprising:
One gate drive circuit is used for producing this complex gate trigger signal;
The one source pole driving circuit is used for producing this complex data-driven signal; And
One control circuit is used for producing this controlling signal;
Time schedule controller is used for producing this gate drive circuit, this source electrode drive circuit and the required signal of this control circuit running.
3. liquid crystal indicator according to claim 1 is characterized in that: wherein each this first picture element unit is to comprise:
One thin film transistor switch, it comprises:
One control end is coupled to this corresponding gate line;
One first end is coupled to this corresponding main data line; And
One second end;
One liquid crystal capacitance is coupled between second end and a common voltage of this thin film transistor switch; And
One storage capacitors is coupled between second end and this common voltage of this thin film transistor switch.
4. liquid crystal indicator according to claim 1 is characterized in that, wherein each this second picture element unit is to comprise:
One thin film transistor switch, it comprises:
One control end is coupled to this corresponding gate line;
One first end is coupled to this corresponding secondary data line; And
One second end;
One liquid crystal capacitance is coupled between second end and a common voltage of this thin film transistor switch; And
One storage capacitors is coupled between second end and this common voltage of this thin film transistor switch.
5. liquid crystal indicator according to claim 1 is characterized in that: wherein this on-off circuit is to comprise the plurality of films transistor switch, and each thin film transistor switch is to comprise:
One control end is used for receiving this controlling signal;
One first end is coupled to a corresponding main data line; And
One second end is coupled to a corresponding secondary data line.
6. the driving method of a liquid crystal indicator is characterized in that this liquid crystal indicator comprises:
One gate line;
One master file line is perpendicular to this gate line;
A data line is perpendicular to this gate line;
One first picture element unit is arranged at the confluce of this gate line and this master file line; And
One second picture element unit is arranged at the confluce of this gate line and this time data line; And
This driving method comprises:
One first data-driven signal of tool first polarity is provided according to the GTG of this first picture element unit desire show image;
One second data-driven signal of tool second polarity is provided according to the GTG of this second picture element unit desire show image;
In one first activation cycle, open this first picture element unit and this second picture element unit simultaneously;
In the one second activation cycle of all after dates of this first activation of continuing, open this first picture element unit;
In this first activation cycle, export this second data-driven signal to this main data line and this secondary data line, and then charging is led in this second picture element unit, and this first picture element unit is carried out precharge;
In this second activation cycle, export this first data-driven signal to this main data line, and then charging is led in this first picture element unit; And
Adjust the length in this first and second activations cycle according to this first polarity and this second polarity.
7. the driving method of liquid crystal indicator according to claim 6 is characterized in that comprising in addition:
When this first polarity is opposite with this second polarity, shortens the length in this first activation cycle and increase the length in this second activation cycle;
When this first polarity is identical with this second polarity, increases the length in this first activation cycle and shorten the length in this second activation cycle.
8. the driving method of a liquid crystal indicator is characterized in that this liquid crystal indicator comprises:
One first gate line, one second gate line and one the 3rd gate line;
One master file line, perpendicular to this first gate line to the 3rd gate line;
A data line, perpendicular to this first gate line to the 3rd gate line;
One first picture element unit is arranged at the confluce of this first gate line and this master file line;
One second picture element unit is arranged at the confluce of this first gate line and this time data line;
One the 3rd picture element unit is arranged at the confluce of this second gate line and this master file line;
One the 4th picture element unit is arranged at the confluce of this second gate line and this time data line;
One the 5th picture element unit is arranged at the confluce of the 3rd gate line and this master file line; And
One the 6th picture element unit is arranged at the confluce of the 3rd gate line and this time data line;
And this driving method comprises:
The GTG of desiring show image according to this first picture element unit to the 6th picture element unit provides one first data-driven signal to the 6th data-driven signal respectively;
In one first activation cycle, open this first picture element unit, this second picture element unit, the 5th picture element unit and the 6th picture element unit simultaneously;
In the one second activation cycle of all after dates of this first activation of continuing, open this first picture element unit and this second picture element unit simultaneously;
This second data-driven signal of output is to this main data line and this secondary data line in this first activation cycle, and then this second picture element unit led charging, and this first picture element unit, the 5th picture element unit and the 6th picture element unit are carried out precharge; And
In this second activation cycle, export this first data-driven signal to this main data line, and then charging is led in this first picture element unit.
9. the driving method of liquid crystal indicator according to claim 8 is characterized in that it comprises in addition:
In one the 3rd activation cycle of all after dates of this second activation of continuing, open the 3rd picture element unit and the 4th picture element unit simultaneously;
In one the 4th activation cycle of the 3rd activation week after date of continuing, open the 3rd picture element unit and the 4th picture element unit simultaneously;
In the 3rd activation cycle, export the 4th data-driven signal to this main data line and this secondary data line, and then charging is led in the 4th picture element unit, and the 3rd picture element unit is carried out precharge; And
In the 4th activation cycle, export the 3rd data-driven signal to this main data line, and then charging is led in the 3rd picture element unit.
10. according to the driving method of the described liquid crystal indicator of claim 9, it is characterized in that comprising in addition:
In one the 5th activation cycle of the 4th activation week after date of continuing, open the 5th picture element unit and the 6th picture element unit simultaneously;
In one the 6th activation cycle of the 5th activation week after date of continuing, open the 5th picture element unit and the 6th picture element unit simultaneously;
In the 5th activation cycle, export the 6th data-driven signal to this main data line and this secondary data line, and then charging is led in the 6th picture element unit, and the 5th picture element unit is carried out precharge; And
In the 6th activation cycle, export the 5th data-driven signal to this main data line, and then charging is led in the 5th picture element unit.
CN 201010118719 2010-03-05 2010-03-05 Liquid crystal display device and driving method thereof Expired - Fee Related CN101751896B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010118719 CN101751896B (en) 2010-03-05 2010-03-05 Liquid crystal display device and driving method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010118719 CN101751896B (en) 2010-03-05 2010-03-05 Liquid crystal display device and driving method thereof

Publications (2)

Publication Number Publication Date
CN101751896A true CN101751896A (en) 2010-06-23
CN101751896B CN101751896B (en) 2013-05-22

Family

ID=42478777

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010118719 Expired - Fee Related CN101751896B (en) 2010-03-05 2010-03-05 Liquid crystal display device and driving method thereof

Country Status (1)

Country Link
CN (1) CN101751896B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102446497A (en) * 2010-09-30 2012-05-09 北京京东方光电科技有限公司 Array substrate and driving method therefor
CN104424902A (en) * 2013-09-03 2015-03-18 瑞鼎科技股份有限公司 Pre-charging device of source electrode driving circuit and operation method thereof
CN104810001A (en) * 2015-05-14 2015-07-29 深圳市华星光电技术有限公司 Drive circuit and a drive method of liquid crystal display panel
CN104880875A (en) * 2015-06-02 2015-09-02 深圳市华星光电技术有限公司 Array substrate and liquid-crystal display panel
CN106782411A (en) * 2017-02-22 2017-05-31 京东方科技集团股份有限公司 Precharge time adjusting means, method, display driver circuit and display device
CN107731177A (en) * 2016-08-10 2018-02-23 联咏科技股份有限公司 The control method and control device that charging interval shares

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030214470A1 (en) * 2002-05-15 2003-11-20 Wein-Town Sun Pre-charging display apparatus
JP2004054235A (en) * 2002-05-30 2004-02-19 Sharp Corp Driver circuit and shift register of display device, and display device
KR20050037052A (en) * 2003-10-17 2005-04-21 삼성전자주식회사 Driving method of liquid crystal display
US20070164935A1 (en) * 2006-01-19 2007-07-19 I-Shu Lee Active matrix organic light emitting diode display and driving method thereof
CN101191923A (en) * 2006-12-01 2008-06-04 统宝光电股份有限公司 Liquid crystal display system and relevant driving process capable of improving display quality
CN101533616A (en) * 2008-03-14 2009-09-16 胜华科技股份有限公司 Multiplex driving circuit for liquid crystal display (LCD)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030214470A1 (en) * 2002-05-15 2003-11-20 Wein-Town Sun Pre-charging display apparatus
JP2004054235A (en) * 2002-05-30 2004-02-19 Sharp Corp Driver circuit and shift register of display device, and display device
KR20050037052A (en) * 2003-10-17 2005-04-21 삼성전자주식회사 Driving method of liquid crystal display
US20070164935A1 (en) * 2006-01-19 2007-07-19 I-Shu Lee Active matrix organic light emitting diode display and driving method thereof
CN101191923A (en) * 2006-12-01 2008-06-04 统宝光电股份有限公司 Liquid crystal display system and relevant driving process capable of improving display quality
CN101533616A (en) * 2008-03-14 2009-09-16 胜华科技股份有限公司 Multiplex driving circuit for liquid crystal display (LCD)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102446497A (en) * 2010-09-30 2012-05-09 北京京东方光电科技有限公司 Array substrate and driving method therefor
CN104424902A (en) * 2013-09-03 2015-03-18 瑞鼎科技股份有限公司 Pre-charging device of source electrode driving circuit and operation method thereof
CN104810001A (en) * 2015-05-14 2015-07-29 深圳市华星光电技术有限公司 Drive circuit and a drive method of liquid crystal display panel
CN104810001B (en) * 2015-05-14 2017-11-10 深圳市华星光电技术有限公司 The drive circuit and driving method of a kind of liquid crystal display panel
CN104880875A (en) * 2015-06-02 2015-09-02 深圳市华星光电技术有限公司 Array substrate and liquid-crystal display panel
CN104880875B (en) * 2015-06-02 2019-08-30 深圳市华星光电技术有限公司 A kind of array substrate and liquid crystal display panel
CN107731177A (en) * 2016-08-10 2018-02-23 联咏科技股份有限公司 The control method and control device that charging interval shares
CN107731177B (en) * 2016-08-10 2020-11-06 联咏科技股份有限公司 Control method and control device for sharing charging time
USRE49356E1 (en) 2016-08-10 2023-01-03 Novatek Microelectronics Corp. Control method and control device for charging time sharing
CN106782411A (en) * 2017-02-22 2017-05-31 京东方科技集团股份有限公司 Precharge time adjusting means, method, display driver circuit and display device
CN106782411B (en) * 2017-02-22 2019-02-12 京东方科技集团股份有限公司 Precharge time regulating device, method, display driver circuit and display device

Also Published As

Publication number Publication date
CN101751896B (en) 2013-05-22

Similar Documents

Publication Publication Date Title
CN101814278B (en) Dual-gate liquid crystal display device and driving method thereof
TWI440001B (en) Liquid crystal display device and driving method thereof
US8063876B2 (en) Liquid crystal display device
US9099054B2 (en) Liquid crystal display and driving method thereof
US8912995B2 (en) Gate driver and liquid crystal display including the same
CN101751887B (en) Liquid crystal display
CN100511403C (en) Liquid crystal display device and method for driving same
US20120169698A1 (en) Display apparatus and method of driving the same
US8330695B2 (en) Liquid crystal display device, method for driving the same, and television receiver
CN103700358B (en) A kind of GIP type liquid crystal indicator
CN103377629B (en) Liquid crystal display and frame rate control method thereof
KR102279280B1 (en) Display Device and Driving Method for the Same
CN101751896B (en) Liquid crystal display device and driving method thereof
CN102568413A (en) Liquid crystal display device and driving method thereof
US20070268231A1 (en) Liquid crystal display and method for driving the same
KR20140035756A (en) Liquid crystal display device inculding inspection circuit and inspection method thereof
CN101114432A (en) Liquid crystal display and driving method thereof
US9978326B2 (en) Liquid crystal display device and driving method thereof
CN102376281A (en) Driving module and driving method
KR101589752B1 (en) Liquid crystal display
US8913046B2 (en) Liquid crystal display and driving method thereof
KR102143221B1 (en) Display Device
CN201204028Y (en) Liquid crystal display apparatus
CN100593749C (en) LCD unit matrix and LCD device embodying the matrix
CN101303494A (en) Liquid crystal display apparatus and drive method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130522

Termination date: 20210305