CN100382137C - Liquid crystal display panel driving method - Google Patents
Liquid crystal display panel driving method Download PDFInfo
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- CN100382137C CN100382137C CNB200510074982XA CN200510074982A CN100382137C CN 100382137 C CN100382137 C CN 100382137C CN B200510074982X A CNB200510074982X A CN B200510074982XA CN 200510074982 A CN200510074982 A CN 200510074982A CN 100382137 C CN100382137 C CN 100382137C
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 10
- 241001269238 Data Species 0.000 claims description 21
- 238000012163 sequencing technique Methods 0.000 claims description 10
- 230000009021 linear effect Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 11
- 239000012530 fluid Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The present invention relates to a driving method for a liquid crystal display panel, which is used for displaying images with a first image field and a second image field on the liquid crystal display panel. Scan line data of the image are conveyed to the liquid crystal display panel in the mode of line pairs by the driving method, and the images can be displayed by matching with the line inversion driving of the liquid crystal display panel. Thus, the driving method of the present invention can increase the resolution of the displayed image without using an additional memory body and complicated algorithm like the prior techniques.
Description
Technical field
The invention relates to a kind of driving method of display panels, and particularly relevant for a kind of driving method that is used to show the display panels of TV signal.
Background technology
TV signal adopts staggered video picture mode (interlacing) mostly, just each picture (frame) of TV signal is made up of an odd number figure field (odd field) and an even number figure field (evenfield), and the sweep trace of one of them figure field crisscrosses between the scanning linear of another figure field.
Fig. 1 illustrates the synoptic diagram into staggered video picture formula TV signal.Please refer to Fig. 1, is example with the ntsc television system for example, and a picture has 525 sweep traces, but after deduction was used to return the sweep trace of speeding, the effective scanning line that really contains image data was 484, respectively with 1,2,3 ..., 482,483 and 484 indicate.And a picture is made up of an odd number Tu Chang and an even number figure place, wherein odd number figure field comprise this picture be denoted as 1,3,5 ..., 481 and 483 sweep trace, even number figure field comprise this picture be denoted as 2,4,6 ..., 482 and 484 scanning linear.In addition, also has other television system such as PAL.
Fig. 2 illustrates to adopting LCD to play the synoptic diagram of TV signal.In fact, the type of drive of the display panel of general LCD is for activating each bar sweep trace of (enable) display panels (scan line) in regular turn, and when a certain sweep trace activated, send into corresponding data by the data line (data line) of display panels, these data can be a certain the data that effective scanning line comprised of above-mentioned odd number figure field or even number figure field.Therefore, the effective scanning line (non-entity) of odd number figure field and even number figure field is called scan-line data (scan-line data), so that distinguish to some extent with the sweep trace (being entity) on the display panels.
Please refer to Fig. 2, wherein X, Y represent the data line of display panel of LCD and the label of sweep trace respectively, and T represents the label of the scanning linear data of TV signal.When the display panels that has 240 sweep traces when utilization showed the picture (being that its odd number figure field and even number figure field have 242 scanning linear data respectively) of 484 scanning linear data of above-mentioned tool, its broadcast mode was for alternately showing the odd number figure field and the even number figure field of each picture.For example, elder generation shows that the odd number figure field of first picture shows the even number figure field of first picture again on display panels, next the odd number figure field that shows second picture shows the even number figure field of second picture again, so alternately shows the odd number figure field and the even number figure field of each picture.
Natch, in the time of will on the display panels of 240 sweep traces of tool, showing the odd number figure field (or even number figure field) of 242 scanning linear data of tool, need cast out two scanning linear data inevitably, the general employing cast out end to end two or other and cast out mode, and be little to the whole image influence.In addition, in order to prevent that liquid crystal is continuously applied folk prescription causes liquid crystal torque characteristic variation maybe can't reverse to electric field, so liquid crystal must adopt the mode of reversal of poles (polarity inversion) to do AC driving.For example, Figure 2 shows that row (column) counter-rotating in the reversal of poles driving method, other still have modes such as row (row) counter-rotating, picture (frame) counter-rotating, point (dot) counter-rotating.
In known techniques, if when showing that with the display panels of 240 sweep traces of tool odd number figure field and even number figure field respectively are the TV signal of 242 scanning linear data, the resolution of its display frame has only 240 scanning linears.In order to increase resolution, the general practice is the number of scanning lines increase with display panels, 480 sweep traces for example, therefore must add memory body stores previous figure field (242 scanning linear data of its tool), so that cooperate next figure (242 scanning linear data of its tool) to be shown in display panels (480 scanning linears of its tool) together, or utilize memory body and cooperate some complicated algorithms on display panels (480 scanning linears of its tool), to demonstrate than 480 resolutions that scanning linear is also high.
Summary of the invention
Purpose of the present invention is exactly that a kind of driving method of display panels is being provided, and does not need to use extra memory body and complicated algorithm, just can increase the resolution of display frame.
The driving method of display panels of the present invention, in order to display frame on display panels, wherein display panels comprises M bar sweep trace and N bar data line, and picture comprises the first figure field (field) and the second figure field, and the first figure field and the second figure field all comprise L bar scan-line data.This driving method comprise the L bar scan-line data that receives and transmit the first figure field in regular turn to the display panels showing the first figure field, and the L bar scan-line data that receives and transmit the second figure field in regular turn to the display panels to show the second figure field.
When on display panels, showing the first figure field, there is P bar scan-line data to be sent to respectively in continuous two sweep traces on the display panels in the L bar scan-line data of the first figure field, and have Q bar scan-line data to be sent to respectively in single the sweep trace on the display panels, and it is identical with the sequencing of above-mentioned wantonly two scan-line datas in the first figure field to be sent to the sequencing of wantonly two scan-line datas in those scan-line datas on the display panels.At this moment, the signal polarity of the odd number bar data line of display panels and even number bar data line is respectively first polarity and second polarity.
When on display panels, showing the second figure field, there is R bar scan-line data to be sent to respectively in continuous two sweep traces on the display panels in the L bar scan-line data of the second figure field, and have S bar scan-line data to be sent to respectively in single the sweep trace on the display panels, and it is identical with the sequencing of above-mentioned wantonly two scan-line datas in the second figure field to be sent to the sequencing of wantonly two scan-line datas in those scan-line datas on the display panels.At this moment, the signal polarity of the odd number bar data line of display panels and even number bar data line is respectively second polarity and first polarity.
Wherein, L, M, N, P, R are all natural number, and Q, S are all nonnegative integer, and P+Q≤L, R+S≤L.In addition, first polarity and second polarity are represented the voltage quasi position of data line input signal with respect to the common electrode of upper substrate, and first polarity is opposite with the polarity of second polarity in this example, for example first polarity be on the occasion of, and second polarity is negative value.Thus, odd number bar data line when showing the first figure field is all on the occasion of (this moment, the even number bar data line during the first figure field was all negative value), and the odd number bar data line when showing the second figure field is all negative value (this moment the even number bar data line during the second figure field be all on the occasion of), and this is the capable inversion driving in the reversal of poles.
It should be noted that in as the explanation of the prior art of Fig. 1, with the scan-line data of odd number figure field be denoted as 1,3,5 ..., and the scan-line data of even number figure field is denoted as 2,4,6 ...But, the explanation of the present invention for convenience can regularization for the purpose of, summary of the invention herein with the scan-line data of odd number figure field and even number figure field all be denoted as 1,2,3 ... therefore the 1st, the 2nd of odd number figure field is the 1st, the 3rd and the 5th scan-line data among Fig. 1 with the 3rd scan-line data, and the 1st, the 2nd of even number figure field with the 3rd horizontal line be among Fig. 1 the 2nd, the 4th with the 6th scan-line data, the rest may be inferred for other.
In one embodiment, P+Q=R+S=L, Q, S ≠ 0, so all have several scan-line datas to be sent to respectively in continuous two sweep traces on the display panels in the L bar scan-line data of the first figure field and the second figure field, and other remaining scan-line data is sent in single the sweep trace on the display panels respectively.In another embodiment, P+Q＜L, R+S＜L, Q, S ≠ 0, so all have several scan-line datas to be sent to respectively in continuous two sweep traces on the display panels in the L bar scan-line data of the first figure field and the second figure field, and have the scan-line data of part to be sent to respectively in single the sweep trace on the display panels in other remaining scan-line data.In these two embodiment, when showing the first figure field, the h bar scan-line data of the first figure field is sent to the g bar sweep trace of display panels, and when showing the second figure field, one of them is sent to the g bar sweep trace of above-mentioned display panels h-1 bar, h bar and the h+1 bar scan-line data three of the second figure field, wherein h, g are all natural number, and h≤L, g≤M.Two kinds of above-mentioned embodiment are applicable to that all line is when driving according to this when the number of scanning lines of the first figure field (or second figure field), and its scan-line data number is greater than the number of scanning lines purpose situation of display panels.
In sum, the driving method of display panels of the present invention, utilize line that mode is sent to display panels the scan-line data of picture, and the capable inversion driving of fluid,matching LCD panel is with display frame, do not need to use extra memory body and complicated algorithm, just can increase the resolution of display frame.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 illustrates the synoptic diagram into staggered video picture formula TV signal.
Fig. 2 illustrates to adopting LCD to play the synoptic diagram of staggered video picture formula TV signal.
Fig. 3 A and Fig. 3 B are the synoptic diagram according to the driving method of the display panels that a preferred embodiment of the present invention illustrated.
Fig. 4 is the synoptic diagram of the driving method of the display panels that illustrated according to another preferred embodiment of the present invention.
Fig. 5 is for according to the present invention's synoptic diagram of the driving method of the display panels that illustrated of a preferred embodiment again.
X: the data line of display panels
Y: the sweep trace of display panels
Z, T: the scanning linear data of TV signal
+: (polarity is) on the occasion of
-: (polarity is) negative value
Embodiment
For making the implementation of the present invention can be clearer, below the first figure field and the second figure field be example with odd number figure field and even number figure field respectively, first polarity and second polarity respectively with on the occasion of with negative value be example.
Fig. 3 A, Fig. 3 B are respectively the synoptic diagram of the driving method of the display panels that illustrates according to a preferred embodiment of the present invention.The method is applicable to that line is when driving according to this when the number of scanning lines of odd number figure field (or even number figure field), and its scan-line data number equals the number of scanning lines purpose situation of display panels.
Please refer to Fig. 3 A, the right graphic " scan-line data of TV signal (T) " is identical picture with middle graphic " scan-line data of TV signal (Z) " in essence, just the label of the former scan-line data adopts as the marking mode of Fig. 1, and the described marking mode of the label of latter's scan-line data employing summary of the invention.Please refer to Fig. 3 B, similarly, the right graphic " scan-line data of TV signal (T) " is identical picture with middle graphic " scan-line data of TV signal (Z) " in essence.Wherein, TV signal for example is the TV signal of institute's standards such as NTSC or PAL for staggered video picture formula.
In addition, for convenience of description, narration is sometimes understood directly and is distinguished representative diagram " sweep trace of display panels (Y) ", graphic " scan-line data of TV signal (Z) " and graphic " scan-line data of TV signal (T) " with Y, Z and T.
In Fig. 3 A and Fig. 3 B, LCD receives staggered video picture formula TV signal as shown in Figure 1, and each picture of TV signal all comprises an odd number Tu Chang and an even number figure field, and odd number figure field and even number figure field all comprise L bar (for example 242) scanning linear data, only draw a picture (being Z or T) at Fig. 3 A and do representative, be familiar with this skill person when knowing that driving method of the present invention is each picture at staggered video picture formula TV signal.Because the present invention uses line that (line pair) mode is driven LCD, so the display panel of LCD need comprise M bar sweep trace and N bar data line at least, M＜2L wherein, below with M=480, L=242 is an example.
So-called " line to " drives each the bar scanning linear data that refers to odd number figure field or even number figure field and is sent to continuous two sweep traces on the display panels, and it is identical with the sequencing of above-mentioned wantonly two scan-line datas in the first figure field to be sent to the sequencing of wantonly two scan-line datas in those scan-line datas on the display panels.For example, a picture of TV signal comprises scan-line data { 1,2,3,4,5 originally, 6,7,8,9,10,11,12 ..., so its odd number figure field comprises scan-line data { 1,3,5,7,9,11 ..., its even number figure field comprises scan-line data { 2,4,6,8,10,12 ..., wherein { the c} representative has a bar, b bar and the c bar scan-line data of ordinal relation to scan-line data for a, b.With scan- line data 1,3,5,7,9,11 ... line to after become 1,1,3,3,5,5 ..., with scan- line data 2,4,6,8,10,12 ... line to after become 2,2,4,4,6,6 ....
But, in order to increase the resolution of display frame, the scanning linear on both sides must be staggered, for example shown in the T of Fig. 3 A, the scan-line data of odd number figure field becomes { 1,3,3,5,5,7,, still be { 2,2 and the scan-line data of even number figure field is constant, 4,4,6,6 ..., so the 1st scan-line data of odd number figure field do not adopt line right.Perhaps, for example shown in the T of Fig. 3 B, can be designed to the scan-line data of odd number figure field constant still for 1,1,3,3,5,5 ..., and the scan-line data of even number figure field become 2,4,4,6,6,8 ....
Driving method of the present invention can utilize the Z of Fig. 3 A to illustrate in another way.Desire shows that TV signal one picture is when (it comprises odd number figure field and the even number figure field of Z), display panels shows the odd number figure field of Z earlier at first picture, the even number figure field that then shows Z at second picture, and in fact first and second picture is at the shown picture of different time, so first and second picture has identical sweep trace label on the same display panel.
When (or first picture) shows the odd number figure field of Z on display panels, the 1st scan-line data of the odd number figure field of Z is sent to the 1st sweep trace of display panels (or first picture), the j bar scan-line data of the odd number figure field of Z is sent to the 2j-2 bar of display panels (or first picture) and 2j-1 bar sweep trace (j=2 wherein, 3,239, be that j is natural number and 1＜j≤L), the 241st scan-line data of the odd number figure field of Z is sent to the 480th (=M) bar sweep trace of display panels (or first picture).When (or second picture) shows the even number figure field of Z on display panels, the i bar scan-line data of the even number figure field of Z be sent to the 2i-1 bar of display panels (or second picture) and 2i bar sweep trace (i=1 wherein, 2 ... 240, promptly i is natural number and i＜L).
In Fig. 3 A and Fig. 3 B, the graphic Y in the left side only draws the sweep trace label of display panels, does not draw its data line label, but driving method of the present invention still must cooperate capable inversion driving as described in Figure 2, maybe can't reverse to prevent liquid crystal torque characteristic variation.Driving method of the present invention uses line to driving, and the reversal of poles of display panels is to adopt the row inversion mode.
Fig. 4 is the synoptic diagram of the driving method of the display panels that illustrated according to another preferred embodiment of the present invention.The method is applicable to that line is when driving according to this when the number of scanning lines of odd number figure field (or even number figure field), and its scan-line data number is greater than the number of scanning lines purpose situation of display panels.For example, odd number figure field and even number figure field respectively have L bar (for example 286) scanning linear data, and then line respectively has 2L bar (for example 572) scan-line data after driving, but display panels but only has M bar (for example 468) sweep trace.
Please refer to Fig. 4, driving method of the present invention is sent to respectively in continuous two sweep traces on the display panels for P bar scan-line data is all arranged in the L bar scan-line data with odd number figure field and even number figure field, and other remaining Q bar scan-line data is sent to respectively in single the sweep trace on the display panels, wherein P+Q=L, and P, Q, L are all natural number.On display panels, show odd number figure field and even number figure field then respectively.Notice that on behalf of the scan-line data of this label representative, the label that gets up with frame of broken lines in graphic do not adopt line right, and (* 1) expression with adopt line to after the result compare and lacked one.
For example, the odd number figure field of Z comprises scan-line data { 1,2,2,3 among Fig. 4,4,4,5,5,6,7,7,8,8,9,10,10 ..., expression is the included scan-line data { 1,2 of a picture of TV signal originally, 3,4,5,6,7,8,9,10,11,12 ... middle scan-line data { 2,4,5,7,8,10,11,13 ... be sent to respectively in continuous two sweep traces on the display panels, and other remaining scan-line data { 1,3,6,9,12 ... be sent to respectively in single the sweep trace on the display panels.Similarly, the even number figure field of Z comprises scan-line data { 1,1,2,2 among Fig. 4,3,4,4,5,5,6,7,7,8,8,9 ..., expression is the included scan-line data { 1,2,3 of a picture of TV signal originally, 4,5,6,7,8,9,10,11,12 ... middle scan-line data { 1,2,4,5,7,8,10,11,13 ... be sent to respectively in continuous two sweep traces on the display panels, and other remaining scan-line data { 3,6,9,12 ... be sent to respectively in single the sweep trace on the display panels.
Fig. 5 illustrates to according to the present invention's synoptic diagram of the driving method for liquid crystal display panel of a preferred embodiment again, and the method usable condition is identical with Fig. 4.Please refer to Fig. 5, driving method of the present invention is sent to respectively in continuous two sweep traces on the display panels for P bar scan-line data is all arranged in the L bar scan-line data with odd number figure field and even number figure field, and the scan-line data that has only part in other remaining Q bar scan-line data is sent to respectively in single the sweep trace on the display panels, wherein P+Q＜L, and P, Q, L are all natural number.On display panels, show odd number figure field and even number figure field then respectively.Notice that on behalf of the scan-line data of this label representative, the label that gets up with frame of broken lines in graphic do not adopt line right, and (* 2) expression with adopt line to after the result compare and lacked two, be equivalent to not show the scan-line data of this label representative.
For example, the odd number figure field of Z comprises scan-line data { 1,2,2,4 among Fig. 5,4,5,5,6,6,7,7,8,8,10,10 ..., expression is the included scan-line data { 1,2,3 of a picture of TV signal originally, 4,5,6,7,8,9,10,11,12 ... middle scan-line data { 2,4,5,6,7,8,10,11 ... be sent to respectively in continuous two sweep traces on the display panels, the 1st scan-line data is sent in single the sweep trace on the display panels, and scan-line data { 3,9,15,21 ... be not transmitted.Similarly, the even number figure field of Z comprises scan-line data { 1,1,2,2 among Fig. 4,3,3,5,5,6,6,7,7,8,8,9,9,11,11 ..., expression is the included scan-line data { 1 of a picture of TV signal originally, 2,3,4,5,6,7,8,9,10,11,12 ... middle scan-line data { 1,2,3,5,6,7,8,9,11,12 ... be sent to respectively in continuous two sweep traces on the display panels, and scan-line data { 4,10,16,22 ... be sent to respectively in single the sweep trace on the display panels.
In the driving method of Fig. 4 and Fig. 5, is which bar scan-line data sent to continuous two sweep traces of display panels? is which bar scan-line data sent to single sweep trace of display panels? is not and which bar scan-line data transmitted? no matter the system of selection of adopting how, as long as meet following condition.That is as long as when showing odd number figure field, the h bar scan-line data of odd number figure field is sent to the g bar sweep trace of display panels, and when showing even number figure field, h-1 bar, h bar and the h+1 bar scan-line data three of an even number figure field g bar sweep trace that is sent to display panels wherein, wherein h, g are all natural number, and h≤L, g≤M.
What deserves to be mentioned is that in the driving method of Fig. 4, each bar scan-line data shows on display panels at least one sweep trace.Yet in the driving method of Fig. 5, partly scan-line data demonstration on display panels is arranged, so the resolution of the method for Fig. 5 can be lower than the method for Fig. 4.
In sum, the driving method of display panels of the present invention, utilize line that mode is sent to display panels the scan-line data of picture, and the capable inversion driving of fluid,matching LCD panel is with display frame, do not need to use extra memory body and complicated algorithm, just can increase the resolution of display frame.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (6)
1. the driving method of a display panels, in order on this display panels, to show a picture that comprises one first Tu Chang and one second figure field, and this first figure field and this second figure field all comprise L bar scan-line data, wherein this display panels comprises M bar sweep trace and N bar data line, it is characterized in that the driving method of wherein said display panels comprises:
Those L bar scan-line datas that receive and transmit this first figure field in regular turn to this display panels to show this first figure field, wherein there is P bar scan-line data to be sent to respectively in continuous two sweep traces on this display panels in those L bar scan-line datas of this first figure field, and there is Q bar scan-line data to be sent to respectively in single the sweep trace on this display panels, and the sequencing that is sent to wantonly two scan-line datas in those scan-line datas on this display panels is identical with the sequencing of those wantonly two scan-line datas in this first figure field, and wherein the signal polarity of the odd number bar data line of this display panels and even number bar data line is respectively one first polarity and one second polarity; And
Those L bar scan-line datas that receive and transmit this second figure field in regular turn to this display panels to show this second figure field, wherein there is R bar scan-line data to be sent to respectively in continuous two sweep traces on this display panels in those L bar scan-line datas of this second figure field, and there is S bar scan-line data to be sent to respectively in single the sweep trace on this display panels, and the sequencing that is sent to wantonly two scan-line datas in those scan-line datas on this display panels is identical with the sequencing of those wantonly two scan-line datas in this second figure field, and wherein the signal polarity of the odd number bar data line of this display panels and even number bar data line is respectively this second polarity and this first polarity;
Wherein, this first polarity is opposite with the polarity of this second polarity, and L, M, N, P, R are all natural number, and Q, S are all nonnegative integer, and P+Q≤L, R+S≤L.
2. according to the driving method of the described display panels of claim 1, it is characterized in that wherein working as P+Q=L, during R+S=L, P=M-L, Q=2L-M.
3. according to the driving method of the described display panels of claim 1, it is characterized in that wherein working as P+Q=L, during R+S=L, Q, S ≠ 0, and this h bar scan-line data of this first figure field is sent to this g bar sweep trace of this display panels, and one of them is sent to this g bar sweep trace of this display panels this h-1 bar, this h bar and this h+1 bar scan-line data three of this second figure field
Wherein, h, g are all natural number, and h≤L, g≤M.
4. according to the driving method of the described display panels of claim 1, it is characterized in that wherein said first polarity on the occasion of, and this second polarity is negative value.
5. according to the driving method of the described display panels of claim 1, it is characterized in that wherein said first polarity is negative value, and this second polarity be on the occasion of.
6. according to the driving method of the described display panels of claim 1, it is characterized in that wherein as P+Q＜L, during R+S＜L, Q, S ≠ 0, and this h bar scan-line data of this first figure field is sent to this g bar sweep trace of this display panels, and one of them is sent to this g bar sweep trace of this display panels this h-1 bar, this h bar and this h+1 bar scan-line data three of this second figure field
Wherein, h, g are all natural number, and h≤L, g≤M.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510074982XA CN100382137C (en) | 2005-06-06 | 2005-06-06 | Liquid crystal display panel driving method |
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| CNB200510074982XA CN100382137C (en) | 2005-06-06 | 2005-06-06 | Liquid crystal display panel driving method |
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| CN100382137C true CN100382137C (en) | 2008-04-16 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842371A (en) * | 1987-04-15 | 1989-06-27 | Sharp Kabushiki Kaisha | Liquid crystal display device having interlaced driving circuits for driving rows and columns one-half cycle out of phase |
| CN1349209A (en) * | 2000-10-17 | 2002-05-15 | 精工爱普生株式会社 | Electrooptical plate, its driving method and electronic device |
| US20030234750A1 (en) * | 2002-06-21 | 2003-12-25 | Fujitsu Limited | Method of driving plasma display panel and plasma display device |
-
2005
- 2005-06-06 CN CNB200510074982XA patent/CN100382137C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842371A (en) * | 1987-04-15 | 1989-06-27 | Sharp Kabushiki Kaisha | Liquid crystal display device having interlaced driving circuits for driving rows and columns one-half cycle out of phase |
| CN1349209A (en) * | 2000-10-17 | 2002-05-15 | 精工爱普生株式会社 | Electrooptical plate, its driving method and electronic device |
| US20030234750A1 (en) * | 2002-06-21 | 2003-12-25 | Fujitsu Limited | Method of driving plasma display panel and plasma display device |
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| CN1877683A (en) | 2006-12-13 |
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