CN101266745A - A display device and its driving method - Google Patents
A display device and its driving method Download PDFInfo
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- CN101266745A CN101266745A CNA2008100952288A CN200810095228A CN101266745A CN 101266745 A CN101266745 A CN 101266745A CN A2008100952288 A CNA2008100952288 A CN A2008100952288A CN 200810095228 A CN200810095228 A CN 200810095228A CN 101266745 A CN101266745 A CN 101266745A
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Abstract
The invention provides a display device and a drive method thereof; the display device comprises a plurality of scan lines; the drive method at least comprises the following steps of: dividing the scan line into a plurality of groups; each group has at least two scan lines; in a first frame period, enabling at least two scan liens of each group orderly according to a first drive sequence; and in a second frame period, enabling at least two scan liens of each group orderly according to a second drive sequence; the first drive sequence is different from the second frame period; the drive method and the display device use different drive sequences in different frame, which actually improves the problem of current technique and obtains display frame with high quality.
Description
Technical field
The invention relates to a kind of display device and driving method thereof, and particularly relevant for a kind of flat display apparatus and driving method thereof.
Background technology
In recent years, flat-panel screens is enriched the beautiful color except that showing, and has the advantage that does not take up space, and is widely used in the various fields so replace traditional cathode-ray tube display.In order to promote the display quality of flat-panel screens,, be one of main developing direction of flat-panel screens so that the display frame that the consumer is more stable, finer and smoother and colour generation is abundanter (frame) to be provided.
Fig. 1 is the synoptic diagram of the display device of prior art.Please refer to Fig. 1, display device 100 comprises substrate 101, a plurality of pixel 102 and gate drivers 103.These pixels 102 are formed on the substrate 101, and gate drivers 103 connects these pixels 102 by sweep trace 104, and these pixels 102 also receive common voltage signal Vcom by common voltage line 105.During frame shows, gate drivers will provide sweep signal to sweep trace 104 in regular turn, to drive the multiple row pixel 102 of corresponding sweep trace 104 in regular turn, simultaneously, also need look design requirement and the accurate position of changing the common voltage signal.
Yet this display device 100 is during frame shows, concerning the beholder, frame produces the bright horizontal stripe that secretly differs (horizontal line), and this kind phenomenon will cause the frame quality to descend, and make the beholder produce visual fatigue easily.
For solving the phenomenon of aforementioned frame horizontal stripe, prior art adopts a kind of driving method, and this driving method is to drive all sweep traces according to driving order.Fig. 2 is the sequential chart of the driving method of prior art.Please refer to Fig. 2, in this driving method, the driving order is for finish the driving operation of these sweep traces according to the order of sweep trace G1, G3 and G5, and before the driving operation of next group sweep trace began, the accurate position of common voltage signal was converted to low level by high levle.Then, finish the driving operation of these sweep traces again according to the order of sweep trace G2, G4 and G6, and before the driving operation of next group sweep trace began, the accurate position of common voltage signal was converted to high levle by low level.
But this kind driving method still can't be eliminated the phenomenon of frame horizontal stripe fully, and therefore, remaining the deviser of flat display apparatus provides a kind of driving method and display device avoiding the generation of frame horizontal stripe, and improves the quality of display frame.
Summary of the invention
Therefore purpose of the present invention just provides a kind of driving method, and in order to drive a display device, this driving method can improve the phenomenon of frame horizontal stripe in fact, and improves the display quality of frame.
Another object of the present invention provides a kind of driving method, and in order to drive a display device, this driving method can be eliminated the phenomenon of frame horizontal stripe in fact, and obtains high-quality display frame.
And a further object of the present invention provides a kind of display device, in order to drive this display device according to above-mentioned driving method, not only can improve the phenomenon of frame horizontal stripe in fact, and can improve the display quality of frame.
According to above-mentioned purpose, the invention provides a kind of driving method to drive a display device, display device comprises the multi-strip scanning line, and driving method can to comprise the following steps: to divide sweep trace be a plurality of groups, each group comprises m bar sweep trace, is respectively first to m bar sweep trace; And, can enable the m bar sweep trace of each group respectively in regular turn to m driving order according to first driving order in one first frame to m image duration.And m is the positive integer greater than 1.That is in first image duration, foundation first driving order enables the m bar sweep trace of each group in regular turn, and in second image duration, foundation second driving order enables the m bar sweep trace of each group in regular turn, and the rest may be inferred.
The present invention provides a kind of driving method to drive a display device in addition, and display device comprises the multi-strip scanning line, and it is the multigroup group that driving method can comprise the following steps: to divide sweep trace, and each group has at least two sweep traces; In first image duration, can enable at least two sweep traces of each group in regular turn according to first driving order; And, can enable at least two sweep traces of each group in regular turn according to second driving order in second image duration.And wherein, first driving differs from second driving order in proper order.
The present invention also provides a kind of display device, and this display device comprises: multi-strip scanning line and gate drivers.These sweep traces are divided into the multigroup group, and each group has at least two sweep traces.Gate drivers couples these sweep traces, with provide many sweep signals to group at least two sweep traces and enable group.In first frame and second image duration, gate drivers enables at least two sweep traces of each group respectively in regular turn with second driving order according to first driving order, and first driving differs from second driving order in proper order.
As from the foregoing, driving method and display device can be improved prior art problems in fact, and obtain high-quality display frame by adopt different driving order in different frame.
Description of drawings
For allowing above-mentioned and other purposes of the present invention, feature, advantage and embodiment can become apparent appended graphic being described in detail as follows:
Fig. 1 is the synoptic diagram of the display device of prior art.
Fig. 2 is the sequential chart of the driving method of prior art.
Fig. 3 A illustrates the synoptic diagram according to the driving method of a frame of one embodiment of the invention.
Fig. 3 B illustrates the synoptic diagram according to the driving method of another frame of one embodiment of the invention.
Fig. 4 illustrates the voltage synoptic diagram according to a kind of display device of one embodiment of the invention.
Fig. 5 A illustrates the sequential chart according to the driving method shown in the 3A according to figure.
Fig. 5 B illustrates the sequential chart according to the driving method shown in Fig. 3 B.
Fig. 6 A illustrates the part sequential chart according to a kind of driving method of another embodiment of the present invention.
Fig. 6 B illustrates the part sequential chart according to a kind of driving method of another embodiment of the present invention.
Fig. 7 A illustrates the synoptic diagram according to the driving method of a frame of yet another embodiment of the invention.
Fig. 7 B illustrates the synoptic diagram according to the driving method of another frame of yet another embodiment of the invention.
Fig. 7 C illustrates the synoptic diagram according to the driving method of the another frame of yet another embodiment of the invention.
Fig. 8 illustrates the voltage synoptic diagram according to the driving method of a kind of display device of yet another embodiment of the invention.
Fig. 9 A illustrates the sequential chart according to the driving method shown in Fig. 7 A.
Fig. 9 B illustrates the sequential chart according to the driving method shown in Fig. 7 B.
Fig. 9 C illustrates the sequential chart according to the driving method shown in Fig. 7 C.
Figure 10 A illustrates the sequential chart according to the driving method of a frame of further embodiment of this invention.
Figure 10 B illustrates the sequential chart according to the driving method of another frame of further embodiment of this invention.
Figure 10 C illustrates the sequential chart according to the driving method of the another frame of further embodiment of this invention.
Figure 11 illustrates the process flow diagram according to the driving method of one embodiment of the invention.
Drawing reference numeral:
100: display device 101: substrate
102: pixel 103: gate drivers
104: sweep trace 105: the common voltage line
G1～G12: sweep signal Vcom: common voltage signal
Data: voltage data signal
Embodiment
To be example below, embodiments of the invention will be described with the LCD, yet, in other embodiments, but also display device such as application examples such as plasma scope, electric paper display, and adopt driving method of the present invention to drive these display device.
Fig. 3 A illustrates the synoptic diagram according to the driving method of a frame of one embodiment of the invention.Fig. 3 B illustrates the synoptic diagram according to the driving method of another frame of one embodiment of the invention.Please refer to Fig. 3 A and Fig. 3 B, this driving method is applicable to driving one display device, for instance, display device comprises first～the 8th sweep trace G1～G8, right this embodiment is only for illustrating it, and scanning linear is not restricted to eight, and decides the number of scanning linear with resolution demand in fact.
In Fig. 3 A, first driving order is for for example driving each sweep trace in regular turn according to the first scanning linear G1, three scan line G3, the second sweep trace G2, the 4th sweep trace G4, the 5th sweep trace G5, the 7th sweep trace G7, the 6th sweep trace G6 and the 8th sweep trace G8.That is, in this frame, drive first and three scan line G1, G3 at first in regular turn, then, drive the second and the 4th sweep trace G2, G4 in regular turn, then, drive the 5th and the 7th sweep trace G5, G7 in regular turn, afterwards, drive the 6th and the 8th sweep trace G6, G8 (from left to right) in regular turn.According to this embodiment, in another frame, adopt second driving driven sweep line in proper order and in regular turn, second driving order is for for example driving each sweep trace in regular turn according to three scan line G3, the first scanning linear G1, the 4th sweep trace G4, the second sweep trace G2, the 7th sweep trace G7, the 5th sweep trace G5, the 8th sweep trace G8 and the 6th sweep trace G6.That is, in this another frame, drive the 3rd and first sweep trace G3, G1 at first in regular turn, then, drive the 4th and second sweep trace G4, G2 in regular turn.Then, drive the 7th and the 5th sweep trace G7, G5 in regular turn, afterwards, drive the 8th and the 6th sweep trace G8, G6 in regular turn.
Aforementioned scan direction can be earlier by left side to the right side of Fig. 3 A or by the right side to the left side.When scan direction serve as reasons left side to right side with, can help to solve frame and show uneven problem when staggered by right side to left side.In this embodiment, sweep trace is divided into a plurality of groups, and each group has two sweep traces, and for example the first scanning linear G1 and three scan line G3 are a group, and the second sweep trace G2 and the 4th sweep trace G4.In different image duration, adopt first driving order to drive the sweep trace of each group in regular turn with second driving order respectively.
Just, in this embodiment,, adopt first driving to drive first scanning linear G1 and the three scan line G3 in regular turn in proper order, or adopt second driving to drive the three scan line G3 and the first sweep trace G1 in proper order in regular turn in different image duration.
Drive all sweep traces that show LCD in regular turn by in different frame, adopting multiple driving order, can prevent the generation of frame horizontal stripe, and improve the quality of display frame in fact.
In addition, in the above-described embodiments, display device can be for example for having the display panel of QVGA resolution, it comprises 320 sweep traces, be respectively sweep trace G1～G320, as first driving order of Fig. 3 A, complete scan is G1, G3 → G2, G4 → G5, G7 → G6, G8..... → G317, G319 → G318, G320 in proper order.As second driving order of Fig. 3 B, complete scan is G3, G1 → G4, G2 → G7, G5 → G8, G6... → G319, G317 → G320, G318 in proper order.Yet, be noted that the foregoing description is not in order to restriction the present invention only in order to display device of the present invention to be described illustratively.For instance, display device also can have the resolution of VGA (480 sweep trace), SVGA (600 sweep trace) or XVGA (768 sweep trace).
Fig. 4 illustrates the voltage synoptic diagram according to a kind of display device of one embodiment of the invention.Fig. 4 is presented at the driving order of each sweep trace during frame 1～frame 4 and the accurate position of common voltage signal Vcom, and frame 1 all drives first～the 8th sweep trace G1～G8 according to second driving order according to first driving order and frame 3 with frame 4 in regular turn with frame 2.Frame 1 is in providing the voltage data signal Data to corresponding each sweep trace different with the accurate position of common voltage signal Vcom with the difference of frame 2.
Just, in frame 1, the voltage data signal Data of corresponding first sweep trace is a high levle and common voltage signal Vcom is a low level, and in frame 2, the voltage data signal Data of corresponding first sweep trace is a low level and common voltage signal Vcom is a high levle.Same situation also is applicable to other frames, and for example frame 3 and frame 4 be not so give unnecessary details at this.
Fig. 5 A illustrates the sequential chart according to the driving method shown in Fig. 3 A.Fig. 5 B illustrates the sequential chart according to the driving method shown in Fig. 3 B.Please also refer to Fig. 5 A and Fig. 5 B, these sequential charts show that respectively these scanning voltage signals are represented the voltage on corresponding sweep trace G1～G8 respectively according to first driving order and the scanning voltage signal of second driving order and corresponding common voltage signal Vcom.After each group's driving is finished, the common voltage signal will be changed accurate position, that is when driving the first scanning linear G1 and three scan line G3 in regular turn according to first driving order, common voltage signal Vcom is a high levle.Then, when driving the second sweep trace G2 and the 4th sweep trace G4 in regular turn according to first driving order, common voltage signal Vcom will be converted to low level, and the rest may be inferred, up to the driving operation of finishing all sweep traces.
Just, when driving the sweep trace of adjacent group in proper order according to aforementioned first driving order or second driving, common voltage signal Vcom will change accurate position.This kind has the common voltage signal of accurate bit reversal characteristic and can avoid the characteristic of liquid crystal molecule to wreck.
On the other hand, in the embodiment shown in Fig. 5 A and Fig. 5 B, also can adopt another common voltage signal and replace common voltage signal Vcom, and the accurate position of this another common voltage signal also has the characteristic of counter-rotating.For example, in Fig. 5 A, when driving first in regular turn according to first driving order during with three scan line, the common voltage signal Vcom of tool low level will provide to the pixel of this two sweep trace of correspondence.Then, when driving the second and the 4th sweep trace in regular turn according to first driving order, common voltage signal Vcom will be converted to high levle, and the common voltage signal Vcom of this tool high levle will provide to the pixel of corresponding this two sweep trace, can avoid the characteristic of liquid crystal molecule to wreck equally.
Fig. 6 A illustrates the part sequential chart according to a kind of driving method of another embodiment of the present invention.Fig. 6 B illustrates the part sequential chart according to a kind of driving method of another embodiment of the present invention.Please also refer to Fig. 6 A and Fig. 6 B, in this embodiment, in an image duration, adopt first driving order and drive first scanning linear～the 8th sweep trace G1～G8 in regular turn, first driving order is for for example driving each sweep trace in regular turn according to the second sweep trace G2, the 4th sweep trace G4, the first scanning linear G1, three scan line G3, the 6th sweep trace G6, the 8th sweep trace G8, the 5th sweep trace G5 and the 7th sweep trace G7.
Similarly, shown in Fig. 6 B, in this embodiment, in another image duration, adopt second driving order and drive first scanning linear～the 8th sweep trace G1～G8 in regular turn, second driving order is for for example driving each sweep trace in regular turn according to the 4th sweep trace G4, the second sweep trace G2, three scan line G3, the first scanning linear G1, the 8th sweep trace G8, the 6th sweep trace G6, the 7th sweep trace G7 and the 5th sweep trace G5.
Common-battery pressure signal only is exemplary in the embodiment of Fig. 6 B and Fig. 6 A, in other embodiments, also can adopt this common voltage signal of another common voltage signal substituting, and both voltage quasi positions are opposite.
In this embodiment, the second sweep trace G2 and the 4th sweep trace G4 are a group, and to divide the first scanning linear G1 and three scan line G3, the 6th sweep trace G6 and the 8th sweep trace G8 and the 5th sweep trace G5 and the 7th sweep trace G7 be a group.After the scanning line driving of each group is finished, then change the accurate position of common voltage signal, up to the driving operation of finishing all groups.
Similarly, in this embodiment, drive all sweep traces that show LCD in regular turn, not only can prevent the generation of frame horizontal stripe, and can improve the quality of display frame substantially by in different frame, adopting multiple driving order.
In these embodiments, all sweep traces are divided into a plurality of groups, each group has two sweep traces, drives this two sweep traces according to first driving order with second driving order respectively in different frame.So the invention is not restricted to this, below will have three sweep traces with each group is example, drives this three sweep traces according to first driving order, second driving order with the 3rd driving order respectively in different frame.
Fig. 7 A illustrates the synoptic diagram according to the driving method of a frame of yet another embodiment of the invention.Fig. 7 B illustrates the synoptic diagram according to the driving method of another frame of yet another embodiment of the invention.Fig. 7 C illustrates the synoptic diagram according to the driving method of the another frame of yet another embodiment of the invention.Please refer to Fig. 7 A, Fig. 7 B and Fig. 7 C, this driving method is applicable to and drives a display device that for instance, display device comprises first scanning linear～the 12 sweep trace G1～G12.
In Fig. 7 A, this frame drives these sweep traces according to first driving order, and first driving order is for for example driving each sweep trace in regular turn according to the first scanning linear G1, three scan line G3, the 5th sweep trace G5, the second sweep trace G2, the 4th sweep trace G4, the 6th sweep trace G6, the 7th sweep trace G7, the 9th sweep trace G9, the 11 scanning linear G11, the 8th sweep trace G8, the tenth sweep trace G10, the 12 sweep trace G12.That is, in this frame, drive the first scanning linear G1, three scan line G3 and the 5th sweep trace G5 at first in regular turn, then, drive the second sweep trace G2, the 4th sweep trace G4 and the 6th sweep trace G6 in regular turn, then, drive the 7th sweep trace G7, the 9th sweep trace G9 and the tenth one scan line G11 in regular turn, afterwards, drive the 8th sweep trace G8, the tenth sweep trace G10 and the 12 sweep trace G12 in regular turn.
Above-mentioned scan direction can for by left side to the right side of Fig. 7 A or by the right side to the left side.When scan direction serve as reasons left side to right side with, can help to solve frame and show uneven problem when staggered by right side to left side.
Shown in Fig. 7 B, according to this embodiment, in another frame, adopt second driving order and drive first scanning linear～the 12 sweep trace G1～G12 in regular turn, second driving order is for for example driving each sweep trace in regular turn according to three scan line G3, the 5th sweep trace G5, the first scanning linear G1, the 4th sweep trace G4, the 6th sweep trace G6, the second sweep trace G2, the 9th sweep trace G9, the 11 scanning linear G11, the 7th sweep trace G7, the tenth sweep trace G10, the 12 sweep trace G12 and the 8th sweep trace G8.That is, in this another frame, drive three scan line G3, the 5th sweep trace G5 and the first sweep trace G1 at first in regular turn, then, drive the 4th sweep trace G4, the 6th sweep trace G6 and the second sweep trace G2 in regular turn, then, drive the 9th sweep trace G9, the 11 scanning linear G11 and the 7th sweep trace G7 in regular turn, afterwards, drive the tenth sweep trace G10, the 12 sweep trace G12 and the 8th sweep trace G8 (from left to right) in regular turn.
Shown in Fig. 7 C, according to this embodiment, in another frame, adopt the 3rd driving order and drive first scanning linear～the 12 sweep trace G1～G12 in regular turn, the 3rd driving order is for for example driving each sweep trace in regular turn according to the 5th sweep trace G5, the first scanning linear G1, three scan line G3, the 6th sweep trace G6, the second sweep trace G2, the 4th sweep trace G4, the 11 scanning linear G11, the 7th sweep trace G7, the 9th sweep trace G9, the 12 sweep trace G12, the 8th sweep trace G8 and the tenth sweep trace G10.That is, in this another frame, drive the group that comprises the 5th sweep trace G5, the first scanning linear G1 and three scan line G3 at first in regular turn, then, drive the group that comprises the 6th sweep trace G6, the second sweep trace G2 and the 4th sweep trace G4 in regular turn, then, drive the group that comprises the 11 scanning linear G11, the 7th sweep trace G7 and the 9th sweep trace G9 in regular turn, afterwards, drive the group's (from left to right) that comprises the 12 sweep trace G12, the 8th sweep trace G8 and the tenth sweep trace G10 in regular turn.
In this embodiment, sweep trace G1～G12 is divided into a plurality of groups, each group has three sweep traces, for example dividing the first scanning linear G1, three scan line G3 and the 5th sweep trace G5 is a group, and dividing the second sweep trace G2, the 4th sweep trace G4 and the 6th sweep trace G6 is a group, and the rest may be inferred.In different image duration, adopt first driving order, second driving order to drive the sweep trace of each group in regular turn with the 3rd driving order respectively.Just, in this embodiment,, can adopt first driving to drive the first scanning linear G1, three scan line G3 and the 5th sweep trace G5 in proper order in regular turn in different image duration; Adopt second driving order and drive three scan line G3, the 5th sweep trace G5 and the first sweep trace G1 in regular turn; Adopt the 3rd driving to drive in proper order and in regular turn and drive the 5th sweep trace G5, first scanning linear G1 and the three scan line G3 in regular turn, shown in Fig. 7 A to Fig. 7 C.
In this embodiment, drive all sweep traces that show LCD in regular turn, can prevent the generation of frame horizontal stripe, and improve the quality of display frame in fact by in different frame, adopting three kinds of driving orders.
In addition, in this embodiment, display device can be for example for having the display panel of QVGA resolution, it comprises 320 sweep traces, be respectively sweep trace G1～G320, according to first driving order of Fig. 7 A, complete scan is G1, G3, G5 → G2, G4, G6 → G7, G9, G11 → G8, G10, G12..... → G315, G317, G319 → G316, G318, G320.As Fig. 7 B second driving order, complete scan is G3, G5, G1 → G4, G6, G2 → G9, G11, G7 → G10, G12, G8..... → G317, G319, G315 → G318, G320, G316 in proper order.As Fig. 7 C the 3rd driving order, complete scan is G5, G1, G3 → G6, G2, G4 → G11, G7, G9 → G12, G8, G10..... → G319, G315, G317 → G320, G316, G318 in proper order.Yet, be noted that the foregoing description is not in order to restriction the present invention only for display device of the present invention is described illustratively.For instance, display device also can have the resolution of VGA (480 sweep trace), SVGA (600 sweep trace) or XVGA (768 sweep trace).
Fig. 8 illustrates the voltage synoptic diagram according to the driving method of a kind of display device of yet another embodiment of the invention.Fig. 8 is presented at the driving order of each sweep trace during frame 1～frame 6 and the accurate position of common voltage signal Vcom, frame 1 and frame 2 all according to first driving order, frame 3 and frame 4 all according to second driving order, and frame 5 all drives first scanning linear～the 12 sweep trace G1～G12 according to the 3rd driving order in regular turn with frame 6.Frame 1 is in providing the voltage data signal Data to corresponding each sweep trace different with the accurate position of common voltage signal with the difference of frame 2.
Just, in frame 1, the voltage data signal of the corresponding first sweep trace G1 is a high levle and common voltage signal Vcom is a low level, in frame 2, the voltage data signal Data of the corresponding first sweep trace G1 is a low level and the common voltage signal is a high levle, wrecks with the characteristic of avoiding liquid crystal molecule.This kind voltage reversal situation also is applicable to other frames, and for example frame 3 and frame 4, and frame 5 and frame 6 be not so give unnecessary details at this.
Fig. 9 A illustrates the sequential chart according to the driving method shown in Fig. 7 A.Fig. 9 B illustrates the sequential chart according to the driving method shown in Fig. 7 B.Fig. 9 C illustrates the sequential chart according to the driving method shown in Fig. 7 C.Please also refer to Fig. 9 A, Fig. 9 B and Fig. 9 C, these sequential charts show that respectively these scanning voltage signals are represented the voltage on corresponding sweep trace G1～G12 respectively according to first driving order, second driving order and the scanning voltage signal of the 3rd driving order and corresponding common voltage signal Vcom.After each group's driving is finished, common voltage signal Vcom will change accurate position, that is, for example when driving the first scanning linear G1, three scan line G3 and the 5th sweep trace G5 in regular turn according to first driving order, common voltage signal Vcom is a high levle, then, when driving the second sweep trace G2, the 4th sweep trace G4 and the 6th sweep trace G6 in regular turn according to first driving order, common voltage signal Vcom will be converted to low level, and the rest may be inferred, up to the driving operation of finishing all sweep traces.
That is to say that when driving the sweep trace of adjacent group according to aforementioned first driving order, second driving order or the 3rd driving order, common voltage signal Vcom will change accurate position.This kind has the common voltage signal of accurate bit reversal characteristic and can avoid the characteristic of liquid crystal molecule to wreck.
On the other hand, in the embodiment shown in Fig. 9 A, Fig. 9 B and Fig. 9 C, also can adopt another common voltage signal and replace common voltage signal Vcom, and the accurate position of this another common voltage signal also has the characteristic of counter-rotating.For example, in Fig. 9 A, when driving first scanning linear, three scan line and the 5th sweep trace in regular turn according to first driving order, another common voltage signal Vcom of tool low level will provide to the pixel of corresponding these three sweep traces.Then, when driving the second sweep trace G2, the 4th sweep trace G4 and the 6th sweep trace G6 in regular turn according to first driving order, another common voltage signal Vcom will be converted to high levle, and the rest may be inferred, up to the driving operation of finishing all sweep traces.This kind has another common voltage signal of accurate bit reversal characteristic and can avoid the characteristic of liquid crystal molecule to wreck equally.
Figure 10 A illustrates the sequential chart according to the driving method of a frame of further embodiment of this invention.Figure 10 B illustrates the sequential chart according to the driving method of another frame of further embodiment of this invention.Figure 10 C illustrates the sequential chart according to the driving method of the another frame of further embodiment of this invention.Please also refer to Figure 10 A, Figure 10 B and Figure 10 C, in this embodiment, in an image duration, adopt first driving order and drive first scanning linear～the 12 sweep trace G1～G12 in regular turn, first driving order is for for example driving each sweep trace in regular turn according to the second sweep trace G2, the 4th sweep trace G4, the 6th sweep trace G6, the first scanning linear G1, three scan line G3, the 5th sweep trace G5, the 8th sweep trace G8, the tenth sweep trace G10, the 12 sweep trace G12, the 7th sweep trace G7, the 9th sweep trace G9 and the tenth one scan line G11.
Shown in Figure 10 B, in this embodiment, in another image duration, adopt second driving order and drive first scanning linear～the 12 sweep trace G1～G12 in regular turn, second driving order is for for example driving each sweep trace in regular turn according to the 4th sweep trace G4, the 6th sweep trace G6, the second sweep trace G2, three scan line G3, the 5th sweep trace G5, the first scanning linear G1, the tenth sweep trace G10, the 12 sweep trace G12, the 8th sweep trace G8, the 9th sweep trace G9, the 11 scanning linear G11 and the 7th sweep trace G7.
Shown in Figure 10 C, in this embodiment, in another image duration, adopt the 3rd driving order and drive first scanning linear～the 12 sweep trace G1～G12 in regular turn, the 3rd driving order is for for example driving each sweep trace in regular turn according to the 6th sweep trace G6, the second sweep trace G2, the 4th sweep trace G4, the 5th sweep trace G5, the first scanning linear G1, three scan line G3, the 12 sweep trace G12, the 8th sweep trace G8, the tenth sweep trace G10, the 11 scanning linear G11, the 7th sweep trace G7 and the 9th sweep trace G9.
In this embodiment, drive all sweep traces that show LCD in regular turn, can prevent the generation of frame horizontal stripe, and improve the display quality of frame in fact by in different frame, adopting three kinds of driving orders.
In this embodiment, second sweep trace and the 4th sweep trace are a group, and dividing the first scanning linear G1 and three scan line G3, the 6th sweep trace G6 and the 8th sweep trace G8 and the 5th sweep trace G5 and the 7th sweep trace G7 is a group, after the scanning line driving of each group is finished, then change the accurate position of common voltage signal Vcom, up to the driving operation of finishing all groups.
Common voltage signal Vcom only is exemplary in the embodiment of Figure 10 A, Figure 10 B and Figure 10 C, in other embodiments, also can adopt another common voltage signal to replace this common voltage signal, and both voltage quasi positions are opposite.
Figure 11 illustrates the flow process degree according to the driving method of one embodiment of the invention.In this embodiment, driving method is that LCD comprises the multi-strip scanning line in order to the driving LCD.At first, in step 111, dividing these sweep traces is a plurality of groups, and each group has at least two sweep traces.Then, in step 112,, enable at least two sweep traces of each group in regular turn according to first driving order first image duration.And, in step 113,, enable at least two sweep traces of each group in regular turn according to second driving order, and first driving order is different each other with second driving order second image duration.
In addition to the implementation, in other embodiments, also can divide all sweep traces is a plurality of groups, each group comprises 4,5,6 ... wait sweep trace, and, enable the sweep trace of each these group respectively in regular turn to driving order such as the the 4th, the 5th, the 6th according to first driving order in different image duration.So, can avoid the generation of frame horizontal stripe and improve the quality of display frame significantly.
Compare the phenomenon of the frame horizontal stripe that single driving order caused, but adopt the multiple driving order balance deficiency of the display frame of driving order individually, and avoid the generation of frame horizontal stripe and improve the quality of display frame significantly.
By the invention described above previous embodiment as can be known, driving method of the present invention adopts multiple driving order and drives all sweep traces on the display device, eliminating the phenomenon of frame horizontal stripe, and can obtain high-quality display frame.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is when being as the criterion with defining of claim.
Claims (17)
1. driving method, in order to drive a display device, described display device comprises the multi-strip scanning line, it is characterized in that, described driving method comprises the following steps: at least
Dividing described these sweep traces is a plurality of groups, and each described these group comprises m bar sweep trace, is respectively first to m bar sweep trace; And
In one first frame to m image duration, enable the described m bar sweep trace of each described these group respectively in regular turn according to one first driving order to m driving order,
Wherein, m is the positive integer greater than 1.
2. driving method, in order to drive a display device, described display device comprises the multi-strip scanning line, it is characterized in that, described driving method comprises the following steps: at least
Dividing described these sweep traces is a plurality of groups, and each described these group has at least two sweep traces;
In one first image duration, enable described at least two sweep traces of each described these group in regular turn according to one first driving order; And
In one second image duration, enable described at least two sweep traces of each described these group in regular turn according to one second driving order,
Wherein, described first driving differs from described second driving order in proper order.
3. driving method as claimed in claim 2 is characterized in that described display device also comprises the community electrode line.
4. driving method as claimed in claim 3 is characterized in that, described driving method also is included in when enabling two adjacent groups, provides the common voltage signal with different voltage quasi position to described common electrode lines.
5. driving method as claimed in claim 3 is characterized in that, in adjacent two image durations, the common voltage signal on the described common electrode lines has different voltage quasi position.
6. driving method as claimed in claim 2, it is characterized in that, each described these group has one first sweep trace and one second sweep trace, for enabling described first sweep trace and described second sweep trace in regular turn, described second driving is in proper order for enabling described second sweep trace and described first sweep trace in regular turn in proper order in described first driving.
7. driving method as claimed in claim 2 is characterized in that, each described these group has one first sweep trace, one second sweep trace and a three scan line.
8. driving method as claimed in claim 7, it is characterized in that, described driving method also was included in for one the 3rd image duration, enable described first sweep trace of each described these group, described second sweep trace and described three scan line in regular turn according to one the 3rd driving order, wherein said first driving order, described second driving are different each other with described the 3rd driving order in proper order.
9. driving method as claimed in claim 8, it is characterized in that, first driving is in proper order for enabling described first sweep trace, described second sweep trace and described three scan line in regular turn, for enabling described second sweep trace, described three scan line and described first sweep trace in regular turn, described the 3rd driving is in proper order for enabling described three scan line, described first sweep trace and described second sweep trace in regular turn in proper order in described second driving.
10. a display device is characterized in that, described display device comprises:
The multi-strip scanning line, described these sweep traces are divided into a plurality of groups, and each described these group has at least two sweep traces; And
One gate drivers is coupled to described these sweep traces, in order to provide many sweep signals to described at least two sweep traces of described these groups so that can described these groups,
Wherein, in one first frame and one second image duration, described gate drivers enables described at least two sweep traces of each described these group respectively in regular turn with one second driving order according to one first driving order, and described first driving differs from described second driving order in proper order.
11. display device as claimed in claim 10 is characterized in that, described display device also comprises the community electrode line.
12. display device as claimed in claim 11 is characterized in that, when described gate drivers enabled two adjacent groups, described common electrode lines received the common voltage signal with different voltage quasi position.
13. display device as claimed in claim 11 is characterized in that, in adjacent two image durations, the common voltage signal on the described common electrode lines has different voltage quasi position.
14. display device as claimed in claim 10, it is characterized in that, each described these group has one first sweep trace and one second sweep trace, described gate drivers enables described first sweep trace and described second sweep trace in regular turn according to described first driving order, and described gate drivers enables described second sweep trace and described first sweep trace in regular turn according to described second driving order.
15. display device as claimed in claim 10 is characterized in that, each described these group has one first sweep trace, one second sweep trace and a three scan line.
16. display device as claimed in claim 15, it is characterized in that, in one the 3rd image duration, described gate drivers enables described first sweep trace of each described these group, described second sweep trace and described three scan line in regular turn according to one the 3rd driving order, and described first driving order, described second driving are different each other with described the 3rd driving order in proper order.
17. display device as claimed in claim 16, it is characterized in that, described gate drivers enables described first sweep trace, described second sweep trace and described three scan line in regular turn according to described first driving order respectively, and enable described second sweep trace, described three scan line and described first sweep trace in regular turn, and enable described three scan line, described first sweep trace and described second sweep trace in proper order in regular turn according to described the 3rd driving according to described second driving order.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903341A (en) * | 2011-07-26 | 2013-01-30 | 联咏科技股份有限公司 | Image display scanning method |
| US8896584B2 (en) | 2011-07-14 | 2014-11-25 | Novatek Microelectronics Corp. | Scan method for displaying image |
| CN107507598A (en) * | 2017-09-28 | 2017-12-22 | 京东方科技集团股份有限公司 | A kind of shift register, gate driving circuit and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1499824A (en) * | 2002-11-04 | 2004-05-26 | 李治福 | Method for raising quality of image on liquid crystal display device |
| US7102610B2 (en) * | 2003-04-21 | 2006-09-05 | National Semiconductor Corporation | Display system with frame buffer and power saving sequence |
| CN100437728C (en) * | 2005-03-14 | 2008-11-26 | 友达光电股份有限公司 | Pixel driving circuit, time-sequence controller and scanning method |
| KR20080006362A (en) * | 2006-07-12 | 2008-01-16 | 삼성전자주식회사 | Method for driving of display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8896584B2 (en) | 2011-07-14 | 2014-11-25 | 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 |
| CN107507598A (en) * | 2017-09-28 | 2017-12-22 | 京东方科技集团股份有限公司 | A kind of shift register, gate driving circuit and display device |
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