CN101739972B - Liquid crystal display device, driving method thereof and driving circuit thereof - Google Patents
Liquid crystal display device, driving method thereof and driving circuit thereof Download PDFInfo
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- CN101739972B CN101739972B CN200810203214A CN200810203214A CN101739972B CN 101739972 B CN101739972 B CN 101739972B CN 200810203214 A CN200810203214 A CN 200810203214A CN 200810203214 A CN200810203214 A CN 200810203214A CN 101739972 B CN101739972 B CN 101739972B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000010409 thin film Substances 0.000 claims abstract description 30
- 230000009977 dual effect Effects 0.000 claims description 23
- 230000000295 complement effect Effects 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 description 15
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- 238000010586 diagram Methods 0.000 description 7
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- 238000005516 engineering process Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
A liquid crystal display device and its driving method and drive circuit, the said liquid crystal display device is a thin film transistor liquid crystal display device which adopts the structure of double scanning lines, every thin film transistor couples to scanning line and data link; the driving method includes: when the L-th frame image is displayed, the scanning lines are sequentially conducted by adopting a first scanning sequence; when the L +1 th frame image is displayed, the scanning lines are sequentially conducted by adopting a second scanning sequence different from the first scanning sequence, wherein the first data writing sequence is adopted in the first scanning sequence by two sub-pixel points sharing the data line, the second data writing sequence is adopted in the second scanning sequence, and the first data writing sequence and the second data writing sequence are mutually reversed, so that the charging time of each pixel point in the two frames of images before and after the first data writing sequence is neutralized, and the phenomenon of non-uniform linearity is reduced or even eliminated.
Description
Technical field
The present invention relates to lcd technology, particularly liquid crystal indicator and driving method thereof and driving circuit.
Background technology
Because liquid crystal indicator has: advantage such as light, thin, that occupation of land is little, power consumption is little, radiation is little is widely used in the various data processing equipments, for example TV, notebook computer, mobile phone, personal digital assistant etc.Along with the continuous development of electronic industry, the performance of liquid crystal indicator is also increasingly high.
(Thin Film Transistor LCD TFT-LCD) is example, and it belongs to a kind of in the AMLCD with common thin film transistor (TFT) LCD.The principal feature of TFT-LCD is in each pixel, all to dispose a semiconductor switch device; Each pixel all is an independently transistor of isolating each other; Because each pixel can directly control through a pulse, thereby each node is relatively independent, but and stepless control; So not only improved the reaction time, on gray-scale Control, can accomplish very accurate simultaneously.
See also Fig. 1, it is the synoptic diagram of the driving circuit of dual scanning line structure in the prior art.As shown in Figure 1, the resolution of supposing liquid crystal indicator is m*n, and this LCD device is (with Gt by crisscross sweep trace
1, Gt
2..., Gt
2nThe expression) and data line (with S
1, S
2..., S
M*3/2Expression) is interwoven.Be to control the sub-pixel point of delegation and compare in the conventional art by the driving circuit of liquid-crystal apparatus that a data line is controlled the sub-pixel point of row by a sweep trace; In the driving circuit of existing dual scanning line structure; The sub-pixel point of delegation is to be controlled by two sweep traces, the then shared data line of sub-pixel point of adjacent two row.Specifically, be example with the first row sub-pixel point, R
1*1, B
1*1, G
2*1..., R
(m-1) * 1, B
(m-1) * 1, G
M*1Be connected in sweep trace Gt
1And G
1*1, R
2*1, B
2*1..., G
(m-1) * 1, R
M*1, B
M*1Then be to be connected in sweep trace Gt
2In addition, R
1*1With G
1*1Shared data line S
1, B
1*1With R
1*1Shared data line S
2..., B
(m-1) * 1With R
M*1Shared data line S
M*3/2-1, G
M*1With B
M*1Shared data line S
M*3/2Resolution with liquid crystal indicator is that m*n is an example, needs n sweep trace in the driving circuit of traditional liquid-crystal apparatus altogether, m*3 data line; And in the driving circuit of dual scanning line structure, need n*2 sweep trace, m*3/2 data line altogether.Under the situation that realizes equal resolution; Adopt the driving circuit of dual scanning line structure; Make the number of sweep trace to increase and the number of data line can reduce; But since usually in the display area of display device visual width be greater than heights, promptly m is (the for example 1024*768) that is greater than n, so the bus way order in the driving circuit of dual scanning line structure (n*2 and m*3/2 sum) is the bus way order (n and m*3 sum) that is less than in the traditional driving circuit; Because all above-mentioned advantage, the dual scanning line structure has obtained bigger application.
But because the sub-pixel point of delegation is to be controlled by two sweep traces in the driving circuit of dual scanning line structure, the then shared data line of sub-pixel point of adjacent two row has proposed higher requirement to cooperatively interacting of sweep trace and data line.In practical application, still as shown in Figure 1, for a two field picture, its scanning sequency generally is Gt in regular turn
1, Gt
2, Gt
3, Gt
4... Gt
2n-1, Gt
2n, under the situation of a certain therein sweep trace conducting, the also corresponding conducting of corresponding data line importing each sub-pixel point data, and is charged to it.See also Fig. 2, for the sequential chart of each signal in the dual scanning line structure, in conjunction with Fig. 1 and Fig. 2, existing sub-pixel point R with first row and secondary series in first row
1*1And G
1*1For example describes, sweep trace Gt
1And Gt
2Conducting in regular turn has retention time TGt respectively
1And TGt
2, suppose T at present
Gt1=T
Gt2, this moment sub-pixel point R
1*1And G
1*1Data shared line S
1Also conducting, its on the retention time with sweep trace Gt
1, Gt
2Retention time T
Gt1And T
Gt2Form duration of charging T respectively
R1*1And T
G1*1, can find out, because data line S
1In turn on process, has certain retardation, for example at sweep trace Gt
1When reaching conduction level, data line S
1Be in rising edge, after the retardation of a period of time, data line S
1Just can reach conduction level, and with sweep trace Gt
1Cooperate, make that driving circuit can be to this sub-pixel point R
1*1Charge; And at sweep trace Gt
2When reaching conduction level, data line S
1Reached conduction level, the two does not have temporal delay, makes that driving circuit can be to this sub-pixel point G
1*1Charge.Therefore at identical (T of the retention time of sweep trace conducting
Gt1=T
Gt2) situation under, the duration of charging then is T
R1*1<t
G1*1(but not as limit, under other situations, also T possibly appear
R1*1>T
G1*1), can cause sub-pixel point R like this
1*1And G
1*1Cause is pairing duration of charging T separately
R1*1<t
G1*1, under all identical situation of other condition, because of the difference in duration of charging can cause sub-pixel point R
1*1And G
1*1Can produce difference, for example saltus step, distortion etc. through charging institute gray-scale displayed.Expand easy knowledge by Fig. 2, for sweep trace Gt
3, Gt
4With data line S
1, can cause duration of charging T equally
R1*2And T
G1*2It is inequality ... by that analogy, for sweep trace Gt
2n-1, Gt
2nWith data line S
1, still can cause duration of charging T
R1*nAnd T
G1*nInequality.So, can cause all sub-pixel point R in first row
1*1... R
1*nDuration of charging T
R1*nSimultaneously less than or simultaneously greater than all sub-pixel point G in the secondary series
1*1... G
1*nDuration of charging T
G1*n, produce linear inhomogeneous (mura) that image shows.
For the sub-pixel point of other row, under the situation of imbalance charging, the duration of charging of each row sub-pixel point is different equally, with T
R1*n<t
G1*nBe example, then T
B1*n<t
R2*n, T
G2*n<t
B2*n..., T
Gm*n<t
Bm*n, this phenomenon can cause the linear inhomogeneous of image demonstration.
In a word, because above-mentioned sequential scan mode produces the light and shade striped between row and the row, the linear non-uniform phenomenon that causes image to show.
Summary of the invention
The problem that the present invention solves provides a kind of driving method of liquid crystal indicator, has avoided in the prior art because the problem of non-uniform of color visually that scan mode causes.
For addressing the above problem; The present invention provides a kind of driving method of liquid crystal indicator; Said liquid crystal indicator is the thin-film transistor LCD device that adopts the dual scanning line structure; Each thin film transistor (TFT) all is coupled to sweep trace and data line, and said driving method comprises: when showing arbitrary two field picture, and each sweep trace of conducting in regular turn; Wherein the sub-pixel point of shared data line adopts the first data write sequence in some row, in other row, adopts the second data write sequence, and the said first data write sequence and the second data write sequence are reciprocal; The scanning sequency that when showing the L two field picture with the L+1 two field picture, is adopted is identical.
Alternatively, the said first data write sequence comprises the two sub-pixels point to shared data line in the odd-numbered line, adopts the order of even column behind the first odd column; The said second data write sequence comprises the two sub-pixels point to shared data line in the even number line, adopts the order of odd column behind the first even column.
Alternatively, the said first data write sequence comprises the two sub-pixels point to shared data line in the odd-numbered line, adopts the order of odd column behind the first even column; The said second data write sequence comprises the two sub-pixels point to shared data line in the even number line, adopts the order of even column behind the first odd column.
The present invention provides a kind of LCD drive circuits in addition, and said liquid crystal indicator is the thin-film transistor LCD device that adopts the dual scanning line structure, and each thin film transistor (TFT) all is coupled to sweep trace and data line; Wherein said driving circuit comprises: scan line drive circuit is used for when showing arbitrary two field picture each sweep trace of conducting in regular turn; Data line drive circuit is used for the conducting data line; Wherein the sub-pixel point of shared data line adopts the first data write sequence in some row, in other row, adopts the second data write sequence, and the said first data write sequence and the second data write sequence are reciprocal; The scanning sequency that when showing the L two field picture with the L+1 two field picture, is adopted is identical.
Alternatively, the said first data write sequence comprises the two sub-pixels point to shared data line in the odd-numbered line, adopts the order of even column behind the first odd column; The said second data write sequence comprises the two sub-pixels point to shared data line in the even number line, adopts the order of odd column behind the first even column.
Alternatively, the said first data write sequence comprises the two sub-pixels point to shared data line in the odd-numbered line, adopts the order of odd column behind the first even column; The said second data write sequence comprises the two sub-pixels point to shared data line in the even number line, adopts the order of even column behind the first odd column.
Through the present invention; When display image; Sub-pixel point to the shared data line adopts the first data write sequence at 2 sub-pixel points of some row, and 2 sub-pixel points in other row adopt the second data write sequence, and the said first data write sequence and the second data write sequence are reciprocal; Make the light and shade non-uniform phenomenon between row and the row be minimized, reduce non-uniform phenomenon.
The present invention provides the driving method of another liquid crystal indicator, and said liquid crystal indicator is the thin-film transistor LCD device that adopts the dual scanning line structure, and each thin film transistor (TFT) all is coupled to sweep trace and data line; Said driving method comprises: when showing the L two field picture, adopt each sweep trace of first scanning sequency conducting in regular turn; When showing the L+1 two field picture; Adopt second scanning sequency in regular turn conducting each sweep trace different with first scanning sequency; Wherein two sub-pixels of shared data line adopt the first data write sequence o'clock in first scanning sequency; In second scanning sequency, adopt the second data write sequence, the said first data write sequence and the second data write sequence are reciprocal.
Alternatively, in said first scanning sequency, the said first data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts even column behind the first odd column; In said second scanning sequency, the said second data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts odd column behind the first even column.
Alternatively, in said first scanning sequency, the said first data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts odd column behind the first even column; In said second scanning sequency, the said second data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts even column behind the first odd column.
Alternatively; In said first scanning sequency; The said first data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of even column behind the first odd column, the order of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line; In said second scanning sequency; The said second data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of odd column behind the first even column, the order of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line.
Alternatively; In said first scanning sequency; The said first data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of odd column behind the first even column, the order of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line; In said second scanning sequency; The said second data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of even column behind the first odd column, the order of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line.
Alternatively, the driving method of said liquid crystal indicator also comprises the step that preestablishes first scanning sequency and second scanning sequency.
Alternatively, two sub-pixels of the shared data line duration of charging poor in the duration of charging under first scanning sequency and under second scanning sequency differs from into complementary.
The present invention provides a kind of LCD drive circuits in addition, and said liquid crystal indicator is the thin-film transistor LCD device that adopts the dual scanning line structure, and each thin film transistor (TFT) all is coupled to sweep trace and data line; Said driving circuit comprises: scan line drive circuit is used for when showing the L two field picture, adopting each sweep trace of first scanning sequency conducting in regular turn; When showing the L+1 two field picture, adopt second scanning sequency in regular turn conducting each sweep trace different with first scanning sequency; Data line drive circuit is used for the conducting data line; Wherein, two sub-pixels of shared data line adopt the first data write sequence o'clock in first scanning sequency, in second scanning sequency, adopt the second data write sequence, and the said first data write sequence and the second data write sequence are reciprocal.
Alternatively, in said first scanning sequency, the said first data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts even column behind the first odd column; The second data write sequence described in said second scanning sequency be meant in the 2 sub-pixel points at the shared data line adopt first even column after the order of odd column.
Alternatively, in said first scanning sequency, the said first data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts odd column behind the first even column; In said second scanning sequency, the said second data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts even column behind the first odd column.
Alternatively; In said first scanning sequency; The said first data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of even column behind the first odd column, the order of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line; In said second scanning sequency; The said second data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of odd column behind the first even column, the order of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line.
Alternatively; In said first scanning sequency; The said first data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of odd column behind the first even column, the order of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line; In said second scanning sequency; The said second data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of even column behind the first odd column, the order of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line.
Alternatively, two sub-pixels of the shared data line duration of charging poor in the duration of charging under first scanning sequency and under second scanning sequency differs from into complementary.
The present invention also provides a kind of liquid crystal indicator that comprises driving circuit.
Through the present invention; When display image; Through each sub-pixel point of scanning sequency conducting of implementing for front and back two two field pictures to mend mutually; The data write sequence of two sub-pixels of shared data line o'clock in first scanning sequency and second scanning sequency is reciprocal, thus before and after making in two two field pictures duration of charging of each pixel obtain neutralization, reduce even eliminate linear non-uniform phenomenon.
Description of drawings
Fig. 1 is for having the synoptic diagram of the liquid crystal indicator of dual scanning line structure in the prior art;
Constitutional diagram when Fig. 2 has fixing each sub-pixel point of scanning sequency conducting now for adopting;
Fig. 3 is the constitutional diagram that writes of conducting sweep trace and each sub-pixel point data in regular turn when showing a two field picture;
Fig. 4 carries out the sequential chart of charging process for according to driving method shown in Figure 3 the time under the situation of conducting at sweep trace and data line;
Fig. 5 is the constitutional diagram that writes of conducting sweep trace and each sub-pixel point data in regular turn when showing a two field picture;
Fig. 6 carries out the sequential chart of charging process for according to driving method shown in Figure 3 the time under the situation of conducting at sweep trace and data line;
Fig. 7 is the process flow diagram of the driving method of liquid crystal indicator of the present invention;
Fig. 8 is the structural representation of LCD drive circuits of the present invention.
Embodiment
The inventor finds; In the thin-film transistor LCD device of existing employing dual scanning line structure; Be according to each sweep trace of natural order conducting in regular turn; And corresponding again conducting data line, each sub-pixel point is charged, above-mentioned driving method can be because the delay of signals effect causes being common to duration of charging of sub-pixel point of the adjacent columns of same data line there are differences; And final images displayed above-listed with row between the linear non-uniform phenomenon of generation light and shade striped, influence the display effect of image.
The present invention provides a kind of driving method of liquid crystal indicator; Said liquid crystal indicator is the thin-film transistor LCD device that adopts the dual scanning line structure; Each thin film transistor (TFT) all is coupled to sweep trace and data line; Said driving method comprises: when showing arbitrary two field picture, and each sweep trace of conducting in regular turn; Wherein the sub-pixel point of shared data line adopts the first data write sequence in some row; In other row, adopt the second data write sequence; The said first data write sequence and the second data write sequence are reciprocal; Make the light and shade non-uniform phenomenon between row and the row be minimized, reduce linear non-uniform phenomenon.
As shown in Figure 3, in the present embodiment, when showing arbitrary two field picture, be according to scanning sequency Gt
1-->Gt
2-->Gt
4-->Gt
3-->...-->G
2n-1---->G
2nEach sweep trace of conducting in regular turn also carries out data to each sub-pixel point and writes (seeing arrow shown in the figure).Specifically, conducting sweep trace Gt in regular turn
1, Gt
2, simultaneously at conducting sweep trace Gt
1, Gt
2Each data line S of corresponding conducting in the process
1, S
2..., S
M*3/2, at sweep trace Gt
1, Gt
2With data line S
1, S
2..., S
M*3/2All under conducting and the effective situation of holding signal; Just can corresponding each sub-pixel point in first row be charged to required separately voltage to show different gray scales, wherein, here; For the two sub-pixels point of shared data line in first row, adopt first odd column (R for example
1*1, B
1*1..., B
(m-1) * 1, G
M*1) back even column (G for example
1*1, R
2*1..., R
M*1, B
M*1) the first data write sequence; After treating that first each sub-pixel point of row is charged, conducting sweep trace Gt in regular turn again
4, Gt
3, each data line S of conducting simultaneously
1, S
2..., S
M*3/2, at sweep trace Gt
4, Gt
3With data line S
1, S
2..., S
M*3/2All under conducting and the effective situation of holding signal; Just can corresponding each sub-pixel point in second row be charged to required separately voltage to show different gray scales, wherein, here; For the two sub-pixels point of shared data line in second row, adopt first even column (G for example
1*2, R
2*2..., R
M*2, B
M*2) back odd column (R for example
1*2, B
1*2..., B
(m-1) * 2, G
M*2) the second data write sequence; ...; So in regular turn down, corresponding each sub-pixel point is charged to required separately voltage in last column, promptly accomplishes the processing of a two field picture and be able to show.It should be noted that in this process the first data write sequence of even column behind the first odd column of 2 sub-pixel points of shared data line employing in the odd-numbered line; The two sub-pixels point of shared data line in the even number line adopts the second data write sequence of odd column behind the first even column, and the said first data write sequence and the second data write sequence are reciprocal.Because of carrying out scanner uni data write step, pixel in the image known, so repeat no more at this by the state of the art personnel.
As shown in Figure 4, when showing according to driving method shown in Figure 3, it all carries out the sequential chart of charging process under the situation of conducting at sweep trace and data line.As shown in Figure 4, with the sub-pixel point R of first row and secondary series in first row
1*1And G
1*1Be example, in regular turn conducting sweep trace Gt
1, Gt
2, have retention time T respectively
Gt1, T
Gt2, suppose T at present
Gt1=T
Gt2, this moment data line S
1Also conducting, its on the retention time with sweep trace Gt
1, Gt
2Retention time T
Gt1, T
Gt2Form duration of charging T respectively
R1*1, T
G1*1Because data line S
1In turn on process, has certain retardation, for example at sweep trace Gt
1When reaching conduction level, data line S
1Still be in rising edge, after the retardation of a period of time, data line S
1Just can reach conduction level, and with sweep trace Gt
1Cooperate, make that driving circuit can be to this sub-pixel point R
1*1Charge; And at sweep trace Gt
2When reaching conduction level, data line S
1Reached conduction level, the two keeps basically identical in time, makes that driving circuit can be to this sub-pixel point G
1*1Charge.Therefore at identical (T of the retention time of sweep trace conducting
Gt1=T
Gt2) situation under, the duration of charging then is T
R1*1<t
G1*1(but not as limit, under other situations, also T possibly appear
R1*1>T
G1*1), can cause sub-pixel point R like this
1*1And G
1*1Cause is pairing duration of charging T separately
R1*1<t
G1*1, under all identical situation of other condition, because of the difference in duration of charging can cause sub-pixel point R
1*1And G
1*1Can produce difference through charging institute gray-scale displayed.And for sweep trace Gt
4, Gt
3With data line S
1, can cause duration of charging T equally
G1*2<t
R1*2... by that analogy, for sweep trace Gt
2n-1, Gt
2nWith data line S
1, still can cause duration of charging T
G1*n<t
R1*n
In general, in odd-numbered line, the duration of charging that is common to the previous column sub-pixel point in the same data line is less than the duration of charging of back 1 row sub-pixel point; In even number line, the duration of charging that is common to the previous column sub-pixel point in the same data line is greater than the duration of charging of back 1 row sub-pixel point.Specifically can be expressed as: T
R1*p<t
G1*p, T
B1*p<t
R2*p..., T
Gm*p<t
Bm*pT
R1* (p+1)>T
G1* (p+1), T
B1* (p+1)>T
R2* (p+1)..., T
Gm* (p+1)>T
Bm* (p+1), p=1 wherein, 3,5 ..., n/2.So, in arbitrary two field picture, can cause all sub-pixel point R in first row and the secondary series
1*1... R
1*nAnd G
1*1... G
1*nDuration of charging produce the variation situation that length replaces, the linear non-uniform phenomenon of the light and shade striped between overcoming row in the prior art and being listed as.
In another embodiment, as shown in Figure 5, when showing arbitrary two field picture, be according to scanning sequency Gt
2-->Gt
1-->Gt
3-->Gt
4-->...-->G
2n-->G
2n-1Each sweep trace of conducting in regular turn also carries out data to each sub-pixel point and writes (seeing arrow shown in the figure).Specifically, conducting sweep trace Gt in regular turn
2, Gt
1, each data line S of conducting simultaneously
1, S
2..., S
M*3/2, at sweep trace Gt
2, Gt
1With data line S
1, S
2..., S
M*3/2All under conducting and the effective situation of holding signal; Just can corresponding each sub-pixel point in first row be charged to required separately voltage to show different gray scales, wherein, here; For the two sub-pixels point of shared data line in first row, adopt first even column (G for example
1*2, R
2*2..., R
M*2, B
M*2) back odd column (R for example
1*2, B
1*2..., B
(m-1) * 2, G
M*2) the first data write sequence; After treating that first each sub-pixel point of row is charged, conducting sweep trace Gt in regular turn again
3, Gt
4, each data line S of conducting simultaneously
1, S
2..., S
M*3/2, at sweep trace Gt
3, Gt
4With data line S
1, S
2..., S
M*3/2All under conducting and the effective situation of holding signal; Just can corresponding each sub-pixel point in second row be charged to required separately voltage to show different gray scales, wherein, here; For the two sub-pixels point of shared data line in second row, adopt first odd column (R for example
1*1, B
1*1..., B
(m-1) * 1, G
M*1) back even column (G for example
1*1, R
2*1..., R
M*1, B
M*1) the second data write sequence; ...; So in regular turn down, corresponding each sub-pixel point is charged to required separately voltage in last column, promptly accomplishes the processing of a two field picture and be able to show.It should be noted that in this process the first data write sequence of odd column behind the first even column of 2 sub-pixel points of shared data line employing in the odd-numbered line; The two sub-pixels point of shared data line in the even number line adopts the second data write sequence of even column behind the first odd column, and the said first data write sequence and the second data write sequence are reciprocal.Because of carrying out scanner uni data write step, pixel in the image known, so repeat no more at this by the state of the art personnel.
As shown in Figure 6, when showing according to driving method shown in Figure 5, it all carries out the sequential chart of charging process under the situation of conducting at sweep trace and data line.As shown in Figure 6, with the sub-pixel point R of first row and secondary series in first row
1*1And G
1*1Be example, in regular turn conducting sweep trace Gt
2And Gt
1, have retention time T respectively
Gt2And T
Gt1, suppose T at present
Gt2=T
Gt1, this moment data line S
1Also conducting, its on the retention time with sweep trace Gt
2, Gt
1Retention time T
Gt2And T
Gt1Form duration of charging T respectively
G1*1And T
R1*1As previously mentioned, because data line S
1In turn on process, has certain retardation, at identical (T of the retention time of sweep trace conducting
Gt2=T
Gt1) situation under, the duration of charging then is T
G1*1<t
R1*1(but not as limit, under other situations, also T possibly appear
G1*1>T
R1*1) can cause sub-pixel point R like this
1*1And G
1*1Because the difference in duration of charging causes the gray scale that is obtained to produce difference, for example saltus step, distortion etc.For sweep trace Gt
3, Gt
4With data line S
1, can cause duration of charging T equally
R1*2And T
G1*2Inequality,, be T here
R1*2<t
G1*2... by that analogy, for sweep trace Gt
2n-1, Gt
2nWith data line S
1, still can cause duration of charging T
R1*n<t
G1*n
In general, in odd-numbered line, the duration of charging that is common to the previous column sub-pixel point in the same data line is greater than the duration of charging of back 1 row sub-pixel point; In even number line, the duration of charging that is common to the previous column sub-pixel point in the same data line is less than the duration of charging of back 1 row sub-pixel point.Specifically can be expressed as: T
R1*p>T
G1*p, T
B1*p>T
R2*p..., T
Gm*p>T
Bm*pT
R1* (p+1)<t
G1* (p+1), T
B1* (p+1)<t
R2* (p+1)..., T
Gm* (p+1)<t
Bm* (p+1), p=1 wherein, 3,5 ..., n/2.So, in this L+1 two field picture, can cause all sub-pixel point R in first row and the secondary series
1*1... R
1*nAnd G
1*1... G
1*nDuration of charging produce the variation situation that length replaces, the linear non-uniform phenomenon of the light and shade striped between overcoming row in the prior art and being listed as.
In fact, when in said driving method, showing arbitrary two field picture, as long as satisfy: the sub-pixel point of shared data line adopts the first data write sequence in some row, in other row, adopts the second data write sequence with the first data write sequence contrary.The first data write sequence and the second data write sequence are not limited among above-mentioned two embodiment so, in other embodiments still can be by other multiple different variant, for example Gt
2-->Gt
1-->Gt
4-->Gt
3-->...-->G
2n-1-->G
2nDeng.
The present invention also provides a kind of driving method of liquid crystal indicator, comprising: when each subpixels point of conducting L two field picture, adopt first each sweep trace of scanning sequency conducting and the corresponding data line, and each sub-pixel point is charged; When each subpixels point of conducting L+1 two field picture; Adopt second scanning sequency in regular turn conducting each sweep trace different with first scanning sequency; Wherein two sub-pixels of shared data line adopt the first data write sequence o'clock in first scanning sequency; In second scanning sequency, adopt the second data write sequence, the said first data write sequence and the second data write sequence are reciprocal, make adjacent two two field pictures be able to neutralization through complementation; Reduce even eliminate linear non-uniform phenomenon, improve the image display effect of liquid crystal indicator.
Below in conjunction with accompanying drawing content of the present invention is elaborated.
As shown in Figure 7, the driving method of said liquid crystal indicator comprises the steps:
S100 when showing the L two field picture, adopts each sweep trace of first scanning sequency conducting in regular turn;
S102 when showing the L+1 two field picture, adopts second scanning sequency in regular turn conducting each sweep trace different with first scanning sequency, and wherein the data write sequence of two sub-pixels of shared data line o'clock in first scanning sequency and second scanning sequency is reciprocal.
See also Fig. 1, its thin-film transistor LCD device for having the dual scanning line structure in the prior art, as shown in Figure 1, the resolution of supposing liquid crystal indicator is m*n, it is (with Gt by crisscross sweep trace
1, Gt
2..., Gt
2nThe expression) and data line (with S
1, S
2..., S
M*3/2Expression) be interwoven, in the present embodiment, in thin-film transistor LCD device, the grid of thin film transistor (TFT) is coupled to sweep trace, and transistorized source electrode is coupled to data line.In addition, common three subpixels point R (red), G (green) and B (indigo plant) constitute a pixel (Pixel), and the sub-pixel of full line point is to be controlled by two sweep traces, the then shared data line of adjacent 2 row sub-pixel points.Specifically, be example with the first row sub-pixel point, R
1*1, B
1*1, G
2*1... R
(m-1) * 1, B
(m-1) * 1, G
M*1Be connected in sweep trace Gt
1And G
1*1, R
2*1, B
2*1..., G
(m-1) * 1, R
M*1, B
M*1Then be to be connected in grid to drive Gt
2In addition, the first row sub-pixel point R
1With secondary series sub-pixel point G
1Shared data line S then
1... row sub-pixel point G second from the bottom
mWith last row sub-pixel point B
mShared data line S then
M*3/2
At first execution in step S100 for the L two field picture, when showing the L two field picture, adopts each sweep trace of first scanning sequency conducting in regular turn, supplies data line that the sub-pixel point charging of correspondence is write to carry out data.Said first scanning sequency can be set according to the characteristics of dual scanning line structure, in practical application, and when setting first scanning sequency, can be with two sweep trace, the for example Gts of control with delegation's sub-pixel point
1And Gt
2, Gt
3And Gt
4..., Gt
(n-1)And Gt
n, carry out the order adjustment as one group.
As shown in Figure 3, in the present embodiment, be to adopt the first scanning sequency Gt when showing the L two field picture
1-->Gt
2-->Gt
4-->Gt
3-->...-->G
2n-1-->G
2nEach sub-pixel point is scanned (seeing arrow shown in the figure).Specifically, conducting sweep trace Gt in regular turn
1, Gt
2, simultaneously at conducting sweep trace Gt
1, Gt
2Each data line S of corresponding conducting in the process
1, S
2..., S
M*3/2, at sweep trace Gt
1, Gt
2With data line S
1, S
2..., S
M*3/2All under conducting and the effective situation of holding signal; Just can corresponding each sub-pixel point in first row be charged to required separately voltage to show different gray scales, wherein, here; For the two sub-pixels point of shared data line in first row, adopt first odd column (R for example
1*1, B
1*1..., B
(m-1) * 1, G
M*1) back even column (G for example
1*1, R
2*1..., R
M*1, B
M*1) the data write sequence; After treating that first each sub-pixel point of row is charged, conducting sweep trace Gt in regular turn again
4, Gt
3, each data line S of conducting simultaneously
1, S
2..., S
M*3/2, at sweep trace Gt
4, Gt
3With data line S
1, S
2..., S
M*3/2All under conducting and the effective situation of holding signal; Just can corresponding each sub-pixel point in second row be charged to required separately voltage to show different gray scales, wherein, here; For the two sub-pixels point of shared data line in second row, adopt first even column (G for example
1*2, R
2*2..., R
M*2, B
M*2) back odd column (R for example
1*2, B
1*2..., B
(m-1) * 2, G
M*2) the data write sequence; ...; So in regular turn down, corresponding each sub-pixel point is charged to required separately voltage in last column, promptly accomplishes the processing of a two field picture and be able to show.When showing this L two field picture, adopt first scanning sequency; In first scanning sequency; The 2 sub-pixel points that the first data write sequence is included in shared data line in the odd-numbered line adopt the data write sequence of even column behind the first odd column, the data write sequence of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line.Because of carrying out scanner uni data write step, pixel in the image known, so repeat no more at this by the state of the art personnel.
As shown in Figure 4, it shows when adopting first scanning sequency according to Fig. 3 the sequential chart that all carries out charging process at sweep trace and data line under the situation of conducting.As shown in Figure 4, with the sub-pixel point R of first row and secondary series in first row
1*1And G
1*1Be example, in regular turn conducting sweep trace Gt
1, Gt
2, have retention time T respectively
Gt1, T
Gt2, suppose T at present
Gt1=T
Gt2, this moment data line S
1Also conducting, its on the retention time with sweep trace Gt
1, Gt
2Retention time T
Gt1, T
Gt2Form duration of charging T respectively
R1*1, T
G1*1Because data line S
1In turn on process, has certain retardation, for example at sweep trace Gt
1When reaching conduction level, data line S
1Still be in rising edge, after the retardation of a period of time, data line S
1Just can reach conduction level, and with sweep trace Gt
1Cooperate, make that driving circuit can be to this sub-pixel point R
1*1Charge; And at sweep trace Gt
2When reaching conduction level, data line S
1Reached conduction level, the two keeps basically identical in time, makes that driving circuit can be to this sub-pixel point G
1*1Charge.Therefore at identical (T of the retention time of sweep trace conducting
Gt1=T
Gt2) situation under, the duration of charging then is T
R1*1<t
G1*1(but not as limit, under other situations, also T possibly appear
R1*1>T
G1*1), can cause sub-pixel point R like this
1*1And G
1*1Cause is pairing duration of charging T separately
R1*1<t
G1*1, under all identical situation of other condition, because of the difference in duration of charging can cause sub-pixel point R
1*1And G
1*1Can produce difference, for example saltus step, distortion etc. through charging institute gray-scale displayed.And for sweep trace Gt
4, Gt
3With data line S
1, can cause duration of charging T equally
G1*2<t
R1*2... by that analogy, for sweep trace Gt
2n-1, Gt
2nWith data line S
1, still can cause duration of charging T
G1*n<t
R1*n
In general, in odd-numbered line, the duration of charging that is common to the previous column sub-pixel point in the same data line is less than the duration of charging of back 1 row sub-pixel point; In even number line, the duration of charging that is common to the previous column sub-pixel point in the same data line is greater than the duration of charging of back 1 row sub-pixel point.Specifically can be expressed as: T
R1*p<t
G1*p, T
B1*p<t
R2*p..., T
Gm*p<t
Bm*pT
R1* (p+1)>T
G1* (p+1), T
B1* (p+1)>T
R2* (p+1)..., T
Gm* (p+1)>T
Bm* (p+1), p=1 wherein, 3,5 ..., n/2.So, in this L two field picture, can cause all sub-pixel point R in first row and the secondary series
1*1... R
1*nAnd G
1*1... G
1*nDuration of charging produce the variation situation that length replaces, the linear non-uniform phenomenon of the light and shade striped between overcoming row in the prior art and being listed as.
Then execution in step S102 when showing the L+1 two field picture, adopts each sweep trace of second scanning sequency conducting in regular turn.In practical application; When setting second scanning sequency; Be the scanning sequency of 2 sub-pixel points of shared data line to be set at the scanning sequency of contrary in 2 sub-pixel points described in first scanning sequency, make win scanning sequency and second conducting form complementation in proper order according to the characteristics of first scanning sequency.
As shown in Figure 5, in the present embodiment, be to adopt the second scanning sequency Gt when showing the L+1 two field picture
2-->Gt
1-->Gt
3-->Gt
4-->...-->G
2n-->G
2n-1Each sub-pixel point is scanned (seeing arrow shown in the figure).Specifically, conducting sweep trace Gt in regular turn
2, Gt
1, each data line S of conducting simultaneously
1, S
2..., S
M*3/2, at sweep trace Gt
2, Gt
1With data line S
1, S
2..., S
M*3/2All under conducting and the effective situation of holding signal; Just can corresponding each sub-pixel point in first row be charged to required separately voltage to show different gray scales, wherein, here; For the two sub-pixels point of shared data line in first row, adopt first even column (G for example
1*2, R
2*2..., R
M*2, B
M*2) back odd column (R for example
1*2, B
1*2..., B
(m-1) * 2, G
M*2) the data write sequence; After treating that first each sub-pixel point of row is charged, conducting sweep trace Gt in regular turn again
3, Gt
4, each data line S of conducting simultaneously
1, S
2..., S
M*3/2, at sweep trace Gt
3, Gt
4With data line S
1, S
2..., S
M*3/2All under conducting and the effective situation of holding signal; Just can corresponding each sub-pixel point in second row be charged to required separately voltage to show different gray scales, wherein, here; For the two sub-pixels point of shared data line in second row, adopt first odd column (R for example
1*1, B
1*1..., B
(m-1) * 1, G
M*1) back even column (G for example
1*1, R
2*1..., R
M*1, B
M*1) the data write sequence; ...; So in regular turn down, corresponding each sub-pixel point is charged to required separately voltage in last column, promptly accomplishes the processing of a two field picture and be able to show.When showing this L+1 two field picture, adopt second scanning sequency; In second scanning sequency; The 2 sub-pixel points that the second data write sequence is included in shared data line in the odd-numbered line adopt the data write sequence of odd column behind the first even column, the data write sequence of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line.Compare with the first data write sequence among Fig. 3, the said first data write sequence and the second data write sequence are reciprocal.Because of carrying out scanner uni data write step, pixel in the image known, so repeat no more at this by the state of the art personnel.
Contrast with Fig. 3, the arrow from Fig. 5 can find out, the data write sequence of two sub-pixels of shared data line o'clock in first scanning sequency and second scanning sequency is reciprocal.With shared data line S
1Sub-pixel point R
1*1, G
1*1Be example, the data write sequence is first R in first scanning sequency shown in Figure 3
1*1Back G
1*1, and the data write sequence is first G in second scanning sequency shown in Figure 5
1*1Back R
1*1
As shown in Figure 6, it shows when adopting first scanning sequency according to Fig. 5 the sequential chart that all carries out charging process at sweep trace and data line under the situation of conducting.As shown in Figure 6, with the sub-pixel point R of first row and secondary series in first row
1*1And G
1*1Be example, in regular turn conducting sweep trace Gt
2And Gt
1, have retention time T respectively
Gt2And T
Gt1, suppose T at present
Gt2=T
Gt1, this moment data line S
1Also conducting, its on the retention time with sweep trace Gt
2, Gt
1Retention time T
Gt2And T
Gt1Form duration of charging T respectively
G1*1And T
R1*1As previously mentioned, because data line S
1In turn on process, has certain retardation, at identical (T of the retention time of sweep trace conducting
Gt2=T
Gt1) situation under, the duration of charging then is T
GI*1<t
R1*1(but not as limit, under other situations, also T possibly appear
G1*1>T
R1*1) can cause sub-pixel point R like this
1*1And G
1*1Because the difference in duration of charging causes the gray scale that is obtained to produce difference, for example saltus step, distortion etc.For sweep trace Gt
3, Gt
4With data line S
1, can cause duration of charging T equally
R1*2And T
GI*2Inequality,, be T here
R1*2<t
G1*2... by that analogy, for sweep trace Gt
2n-1, Gt
2nWith data line S
1, still can cause duration of charging T
R1*n<t
G1*n
In general, in odd-numbered line, the duration of charging that is common to the previous column sub-pixel point in the same data line is greater than the duration of charging of back 1 row sub-pixel point; In even number line, the duration of charging that is common to the previous column sub-pixel point in the same data line is less than the duration of charging of back 1 row sub-pixel point.Specifically can be expressed as: T
R1*p>T
G1*p, T
B1*p>T
R2*p..., T
Gm*p>T
Bm*pT
R1* (p+1)<t
G1* (p+1), T
B1* (p+1)<t
R2* (p+1)..., T
Gm* (p+1)<t
Bm* (p+1), p=1 wherein, 3,5 ..., n/2.So, in this L+1 two field picture, can cause all sub-pixel point R in first row and the secondary series
1*1... R
1*nAnd G
1*1... G
1*nDuration of charging produce the variation situation that length replaces, the linear non-uniform phenomenon of the light and shade striped between overcoming row in the prior art and being listed as.But; Contrast with each sub-pixel point in the L two field picture; For the arbitrary sub-pixel point on the same position point in adjacent two two field pictures, itself all alternately produced vice-minister's duration of charging and once short duration of charging, the duration of charging between adjacent each sub-pixel point can reach balance basically.
In conjunction with Fig. 4 and Fig. 6, with sub-pixel point R
1*1And G
1*1Be example, in Fig. 4, when scanning through first scanning sequency, sub-pixel point R
1*1Duration of charging T
R1*1Be less than sub-pixel point G
1*1Duration of charging T
G1*1And in Fig. 6, when scanning through second scanning sequency, sub-pixel point R
1*1Duration of charging T
R1*1Be greater than sub-pixel point G
1*1Duration of charging T
G1*1Separately for a two field picture; 2 sub-pixel points all can produce inhomogeneous before and after two two field pictures of front and back; But; Because two sub-pixels of shared data line differ froms into complementary in the difference of the duration of charging under first scanning sequency and duration of charging under second scanning sequency in two two field pictures of front and back, before and after making in two two field pictures duration of charging of each sub-pixel point reach unanimity after being able to neutralize or difference minimum, can overcome or subdue the linear uneven phenomenon of image demonstration basically.For human eye vision, be example with the display frequency of 100Hz, the demonstration time of each two field picture is about 1s/100=10ms, and is very of short duration, because the complementation of front and back two two field pictures, it is inhomogeneous to make that human eye is difficult to discover the color that in the display image.
What need explanation is; In fact, first scanning sequency and second scanning sequency in the foregoing description are merely exemplary illustration, are not in order to restriction the present invention; As long as two sub-pixels of the shared data line data write sequence o'clock in first scanning sequency and second scanning sequency is reciprocal; Then scanning sequency still can be done other change, and for example in another embodiment, first scanning sequency is Gt
2-->Gt
1-->Gt
3-->Gt
4-->...-->G
2n-->G
2n-1, second scanning sequency is Gt
1-->Gt
2-->Gt
4-->Gt
3-->...-->G
2n-1-->G
2nPerhaps in another embodiment; Said first scanning sequency can be a conducting even-line interlace line after each when row elder generation conducting odd-numbered scan lines of scanning; Said second scanning sequency can be a conducting odd-numbered scan lines behind each when row elder generation conducting even-line interlace line of scanning, and promptly first scanning sequency is Gt
1-->Gt
2-->Gt
3-->Gt
4-->...-->G
2n-1-->G
2n, and second scanning sequency is Gt
2-->Gt
1-->Gt
4-->Gt
3-->...-->G
2n-->G
2n-1Perhaps said first scanning sequency can be a conducting odd-numbered scan lines behind each when row elder generation conducting even-line interlace line of scanning; Said second scanning sequency can be a conducting even-line interlace line after each when row elder generation conducting odd-numbered scan lines of scanning, and promptly first scanning sequency is Gt
2-->Gt
1-->Gt
4-->Gt
3-->...-->G
2n-->G
2n-1, second scanning sequency then is Gt
1-->Gt
2-->Gt
3-->Gt
4-->...-->G
2n-1-->G
2nPerhaps in other embodiments, first scanning sequency is Gt
2-->Gt
1-->Gt
4-->Gt
3-->...-->G
2n-->G
2n-1, second scanning sequency then is Gt
1-->Gt
2-->Gt
3-->Gt
4-->...-->G
2n-1-->G
2nDeng.
In addition; In side circuit; Because the conducting of device has different performances under practical situation, though the data write sequence of two sub-pixels of shared data line point in first scanning sequency and second scanning sequency is reciprocal, the duration of charging of 2 each sub-pixel point of two field picture can reach crash consistency after compensating through neutralizing before and after can not guaranteeing; Eliminate linear non-uniform phenomenon fully; But confirmable is to adopt driving method provided by the present invention really can significantly subdue the single scanning sequency of available technology adopting and cause linear uneven phenomenon, the image display effect of lifting liquid crystal indicator.
Shown in 8; The synoptic diagram that shows LCD drive circuits provided by the present invention; Said liquid crystal indicator is for adopting the thin-film transistor LCD device of dual scanning line structure; Each thin film transistor (TFT) all is coupled to sweep trace and data line, and said driving circuit comprises scan line drive circuit 10 and data line drive circuit 12 at least, and scan line drive circuit 10 is used for sweep trace that conducting couples (with Gt
1, Gt
2..., Gt
2nExpression), data line drive circuit 12 is used for data line that conducting couples (with S
1, S
2..., S
M*3/2Expression).Here, the resolution of supposing said liquid crystal indicator is m*n.
In one embodiment, utilize this driving circuit to drive, when showing arbitrary two field picture, each sweep trace of conducting in regular turn; Wherein the sub-pixel point of shared data line adopts the first data write sequence in some row, in other row, adopts the second data write sequence, and the said first data write sequence and the second data write sequence are reciprocal.
In another embodiment; Utilize this driving circuit to drive, when showing the L two field picture, scan line drive circuit 10 adopts each sweep trace of first scanning sequency conducting in regular turn; When showing the L+1 two field picture; Scan line drive circuit 10 adopts second scanning sequency in regular turn conducting each sweep trace different with first scanning sequency, two sub-pixels of shared data line point employing first data write sequence in first scanning sequency wherein, the employing second data write sequence in second scanning sequency; The said first data write sequence and the second data write sequence are reciprocal; Make the two sub-pixels duration of charging poor in the duration of charging under first scanning sequency and under second scanning sequency of shared data line differ from, and then realize the complementarity of adjacent two two field pictures, eliminate the linear non-uniform phenomenon of display image into complementary.
The present invention provides a kind of liquid crystal indicator in addition, and it is the thin-film transistor LCD device that adopts the dual scanning line structure, and each thin film transistor (TFT) all is coupled to sweep trace and data line; Said liquid crystal indicator includes driving circuit as shown in Figure 8, and said driving circuit comprises: scan line drive circuit and data line drive circuit.
Though oneself discloses the present invention as above with preferred embodiment, the present invention is defined in this.Any those skilled in the art are not breaking away from the spirit and scope of the present invention, all can do various changes and modification, so protection scope of the present invention should be as the criterion with claim institute restricted portion.
Claims (21)
1. the driving method of a liquid crystal indicator; Said liquid crystal indicator is the thin-film transistor LCD device that adopts the dual scanning line structure; Each thin film transistor (TFT) all is coupled to sweep trace and data line; It is characterized in that said driving method comprises: when showing arbitrary two field picture, each sweep trace of conducting in regular turn; Wherein the sub-pixel point of shared data line adopts the first data write sequence in odd-numbered line, in even number line, adopts the second data write sequence, and the said first data write sequence and the second data write sequence are reciprocal; The scanning sequency that when showing the L two field picture with the L+1 two field picture, is adopted is identical.
2. according to the driving method of the said liquid crystal indicator of claim 1, it is characterized in that the said first data write sequence comprises the two sub-pixels point to shared data line in the odd-numbered line, adopt the order of even column behind the first odd column; The said second data write sequence comprises the two sub-pixels point to shared data line in the even number line, adopts the order of odd column behind the first even column.
3. according to the driving method of the said liquid crystal indicator of claim 1, it is characterized in that the said first data write sequence comprises the two sub-pixels point to shared data line in the odd-numbered line, adopt the order of odd column behind the first even column; The said second data write sequence comprises the two sub-pixels point to shared data line in the even number line, adopts the order of even column behind the first odd column.
4. according to the driving method of the said liquid crystal indicator of claim 1, it is characterized in that, also comprise the step that preestablishes the first data write sequence and the second data write sequence.
5. LCD drive circuits, said liquid crystal indicator are to adopt the thin-film transistor LCD device of dual scanning line structure, and each thin film transistor (TFT) all is coupled to sweep trace and data line; It is characterized in that said driving circuit comprises:
Scan line drive circuit is used for when showing arbitrary two field picture each sweep trace of conducting in regular turn;
Data line drive circuit is used for the conducting data line;
Wherein the sub-pixel point of shared data line adopts the first data write sequence in odd-numbered line, in even number line, adopts the second data write sequence, and the said first data write sequence and the second data write sequence are reciprocal; The scanning sequency that when showing the L two field picture with the L+1 two field picture, is adopted is identical.
6. according to the said LCD drive circuits of claim 5, it is characterized in that the said first data write sequence comprises the two sub-pixels point to shared data line in the odd-numbered line, adopt the order of even column behind the first odd column; The said second data write sequence comprises the two sub-pixels point to shared data line in the even number line, adopts the order of odd column behind the first even column.
7. according to the said LCD drive circuits of claim 5, it is characterized in that the said first data write sequence comprises the two sub-pixels point to shared data line in the odd-numbered line, adopt the order of odd column behind the first even column; The said second data write sequence comprises the two sub-pixels point to shared data line in the even number line, adopts the order of even column behind the first odd column.
8. the driving method of a liquid crystal indicator, said liquid crystal indicator are the thin-film transistor LCD devices that adopts the dual scanning line structure, and each thin film transistor (TFT) all is coupled to sweep trace and data line; It is characterized in that said driving method comprises:
When showing the L two field picture, adopt each sweep trace of first scanning sequency conducting in regular turn;
When showing the L+1 two field picture; Adopt second scanning sequency in regular turn conducting each sweep trace different with first scanning sequency; Wherein two sub-pixels of shared data line adopt the first data write sequence o'clock in first scanning sequency; In second scanning sequency, adopt the second data write sequence, the said first data write sequence and the second data write sequence are reciprocal.
9. the driving method of said liquid crystal indicator according to Claim 8 is characterized in that, in said first scanning sequency, the said first data write sequence is meant the order that in 2 sub-pixel points of shared data line, adopts even column behind the first odd column; In said second scanning sequency, the said second data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts odd column behind the first even column.
10. the driving method of said liquid crystal indicator according to Claim 8 is characterized in that, in said first scanning sequency, the said first data write sequence is meant the order that in 2 sub-pixel points of shared data line, adopts odd column behind the first even column; In said second scanning sequency, the said second data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts even column behind the first odd column.
11. the driving method of said liquid crystal indicator according to Claim 8; It is characterized in that; In said first scanning sequency; The said first data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of even column behind the first odd column, the order of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line; In said second scanning sequency; The said second data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of odd column behind the first even column, the order of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line.
12. the driving method of said liquid crystal indicator according to Claim 8; It is characterized in that; In said first scanning sequency; The said first data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of odd column behind the first even column, the order of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line; In said second scanning sequency; The said second data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of even column behind the first odd column, the order of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line.
13. the driving method of said liquid crystal indicator is characterized in that according to Claim 8, also comprises the step that preestablishes first scanning sequency and second scanning sequency.
14. the driving method of said liquid crystal indicator is characterized in that according to Claim 8, two sub-pixels of the shared data line duration of charging poor in the duration of charging under first scanning sequency and under second scanning sequency differs from into complementary.
15. a LCD drive circuits, said liquid crystal indicator are to adopt the thin-film transistor LCD device of dual scanning line structure, each thin film transistor (TFT) all is coupled to sweep trace and data line; It is characterized in that said driving circuit comprises:
Scan line drive circuit is used for when showing the L two field picture, adopting each sweep trace of first scanning sequency conducting in regular turn; When showing the L+1 two field picture, adopt second scanning sequency in regular turn conducting each sweep trace different with first scanning sequency;
Data line drive circuit is used for the conducting data line;
Wherein, two sub-pixels of shared data line adopt the first data write sequence o'clock in first scanning sequency, in second scanning sequency, adopt the second data write sequence, and the said first data write sequence and the second data write sequence are reciprocal.
16., it is characterized in that in said first scanning sequency, the said first data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts even column behind the first odd column according to the said LCD drive circuits of claim 15; In said second scanning sequency, the said second data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts odd column behind the first even column.
17., it is characterized in that in said first scanning sequency, the said first data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts odd column behind the first even column according to the said LCD drive circuits of claim 15; In said second scanning sequency, the said second data write sequence is meant in 2 sub-pixel points of shared data line the order that adopts even column behind the first odd column.
18. according to the said LCD drive circuits of claim 15; It is characterized in that; In said first scanning sequency; The said first data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of even column behind the first odd column, the order of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line; In said second scanning sequency; The said second data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of odd column behind the first even column, the order of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line.
19. according to the said LCD drive circuits of claim 15; It is characterized in that; In said first scanning sequency; The said first data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of odd column behind the first even column, the order of even column behind the first odd column of 2 sub-pixel points of shared data line employing in even number line; In said second scanning sequency; The said second data write sequence is meant that 2 sub-pixel points of shared data line in odd-numbered line adopt the order of even column behind the first odd column, the order of odd column behind the first even column of 2 sub-pixel points of shared data line employing in even number line.
20., it is characterized in that two sub-pixels of the shared data line duration of charging poor in the duration of charging under first scanning sequency and under second scanning sequency differs from into complementary according to the said LCD drive circuits of claim 15.
21. a liquid crystal indicator is characterized in that, comprises like claim 5 to 7 15 to 20 each described driving circuits.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102254522A (en) * | 2010-05-20 | 2011-11-23 | 联咏科技股份有限公司 | Driving method and module |
| TW201303841A (en) | 2011-07-14 | 2013-01-16 | Novatek Microelectronics Corp | Scan method for displaying image |
| CN102903341A (en) * | 2011-07-26 | 2013-01-30 | 联咏科技股份有限公司 | Image display scanning method |
| CN102332245A (en) * | 2011-10-14 | 2012-01-25 | 深圳市华星光电技术有限公司 | Liquid crystal display device and driving method thereof |
| TWI435302B (en) * | 2011-11-18 | 2014-04-21 | Au Optronics Corp | Driving method for display panel |
| CN104882110A (en) * | 2015-06-23 | 2015-09-02 | 合肥鑫晟光电科技有限公司 | Display driving method, display driving unit and display device |
| CN105047115B (en) * | 2015-08-10 | 2018-03-27 | 武汉华星光电技术有限公司 | Detect drive circuit, detection drive device and detection method |
| CN107424574B (en) * | 2017-09-29 | 2020-01-31 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN108648681A (en) * | 2018-06-29 | 2018-10-12 | 厦门天马微电子有限公司 | A kind of display panel, its driving method, driving device and display device |
| CN109509455A (en) * | 2018-12-25 | 2019-03-22 | 惠科股份有限公司 | Display panel driving method, display device and storage medium |
| CN113035141A (en) * | 2021-03-19 | 2021-06-25 | 维沃移动通信有限公司 | Display screen, display screen driving method and device, electronic equipment and storage medium |
| CN113035140A (en) * | 2021-03-19 | 2021-06-25 | 维沃移动通信有限公司 | Display screen driving method and device, electronic equipment and storage medium |
| CN113920919A (en) * | 2021-10-26 | 2022-01-11 | 深圳市华星光电半导体显示技术有限公司 | Display panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050121079A (en) * | 2004-06-21 | 2005-12-26 | 삼성전자주식회사 | Liquid crystal display and method of driving thereof |
| CN101216650A (en) * | 2008-01-14 | 2008-07-09 | 京东方科技集团股份有限公司 | Liquid crystal display device array substrate and driving method thereof |
| CN101216649A (en) * | 2008-01-10 | 2008-07-09 | 京东方科技集团股份有限公司 | Crystal display device array substrate and driving method thereof |
| CN101221337A (en) * | 2008-01-28 | 2008-07-16 | 京东方科技集团股份有限公司 | Array substrate of LCD device and its driving method |
-
2008
- 2008-11-19 CN CN200810203214A patent/CN101739972B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050121079A (en) * | 2004-06-21 | 2005-12-26 | 삼성전자주식회사 | Liquid crystal display and method of driving thereof |
| CN101216649A (en) * | 2008-01-10 | 2008-07-09 | 京东方科技集团股份有限公司 | Crystal display device array substrate and driving method thereof |
| CN101216650A (en) * | 2008-01-14 | 2008-07-09 | 京东方科技集团股份有限公司 | Liquid crystal display device array substrate and driving method thereof |
| CN101221337A (en) * | 2008-01-28 | 2008-07-16 | 京东方科技集团股份有限公司 | Array substrate of LCD device and its driving method |
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