CN102024432B - Display driving device and method - Google Patents

Abstract

The invention discloses a display driving device and method, and the method is as follows: calculating a sum-difference value of two continuous pictures according to a difference value which can be used for reflecting the difference degrees of the pictures, such as a pixel value or a lightness value in a display system; weighing the sum-difference values of different blocks corresponding to the pictures according to the difference of values to generate a momentum ratio so as to reflect the difference degrees of the two continuous pictures more specifically; and finally, by means of the setting of a polling list, enabling different momentum ratios to correspond to different frame rates and picture display statuses under different requirements so as to realize the aims of saving power consumption and not affecting the image display quality.

Description

Drive device for display and method

Technical field

The invention relates to a kind of drive device for display and method, refer to a kind of drive device for display and method that reduces power consumption especially.

Background technology

General LCD can be play a large amount of pictures at short notice for playing animation (Motion Picture), makes the beholder experience moving of object in the picture in order to the persistence of vision phenomenon with human eye.And frame per second (Frame Rate) is a kind of LCD the measuring of broadcasting pictures quantity number in the single time of weighing, generally be the frame number that shown with per second (Frames Per Second, FPS) or hertz (Hz) as the employed unit of frame per second.In general, when frame per second is higher than 16 frames of per second, the persistence of vision phenomenon of human eye can make the beholder think in a large amount of pictures of being play certain to as if by what play continuously, general animated film also uses identical principle to play fast.When frame per second arrives 24 frames of per second; It is just quite enough that the object that human eye is caused moves smooth degree; But human eye must possess for the application program or recreation that higher kinetic visual acuity can view and admire when playing for some; Because only comprise the vision message on the single time point in the frame of these application programs or recreation, on frame per second, can require higher frame per second to remedy when therefore playing.

The picture data renewal frequency of traditional LCD (that is frame per second (Frame Rate)) is normally fixing, and the power consumption of driving circuit when display frame that LCD inside is used for driving display panel also can be directly proportional with frame per second; In other words, the power consumption of driving circuit when display frame that is used for driving display panel also is a fixed value.

Summary of the invention

The present invention discloses a kind of display drive method and display system, to reach energy-conservation and to improve the purpose of the quality of image.

This display drive method comprises one first picture and one second picture distinctly is divided into a plurality of first blocks and a plurality of second block according to a resolution; Wherein this first picture and this second picture are the pictures for a pair of continuous broadcast, and these a plurality of first blocks are in pairs with these a plurality of second blocks; Calculate in pairs this first block and one and the difference (Sum ofDifference) between this second block; According to all and difference between this first picture and this second picture and a plurality of and difference flexible strategy (Weight), calculate a momentum ratio; Reach according to this momentum ratio and determine whether an employed frame per second and decision show a picture.This paired first block is identical with the size of this second block.

This display system is to comprise block cutting module, one and difference calculation module, a momentum ratio calculation module, an and picture modulation module.This block cutting module is to be used for receiving one first picture and one second picture, and is used for this first picture and this second picture are divided into a plurality of first blocks and a plurality of second block according to a resolution individually.This first picture and this second picture are the pictures for a pair of continuous broadcast, and these a plurality of first blocks are in pairs with these a plurality of second blocks.Should and the difference calculation module be this first block and one and the difference between this second block that is used for calculating in pairs.This momentum ratio calculation module is according to all and difference between this first picture and this second picture and a plurality of and difference flexible strategy, to calculate a momentum ratio.This picture modulation module is to be used for showing according to this momentum ratio decision whether an employed frame per second and decision show a picture.This paired first block is identical with the size of this second block.

Description of drawings

Fig. 1 is the functional block diagram of the disclosed display system of the present invention.

Fig. 2 is for being cut into two pictures shown in Figure 1 the simple synoptic diagram of a plurality of first blocks and a plurality of second blocks individually according to a resolution.

Fig. 3, Fig. 4, Fig. 5 are the synoptic diagram according to a question blank of building in the disclosed picture modulation module shown in Figure 1 of embodiments of the invention, and each non-index field that wherein this question blank comprised is corresponding to the different value of the frame per second of momentum ratio or with determining whether playing a plurality of continuous pictures.

Fig. 6 is the overdrive synoptic diagram of a display system of picture of disclosed broadcast according to of the present invention one another embodiment.

Fig. 7 is according to the disclosed process flow diagram that reduces the display system power consumption and avoid influencing the method for the quality of image of one embodiment of the invention.

Embodiment

In the middle of instructions and aforesaid right claimed range, used some vocabulary to censure specific assembly.Having common knowledge the knowledgeable in the affiliated field should understand, and same assembly may be called with different nouns by manufacturer.This instructions and aforesaid right claimed range are not used as distinguishing the mode of assembly with the difference of title, but the benchmark that is used as distinguishing with the difference of assembly on function.Be to be an open term mentioned " comprising " in the middle of instructions and the aforesaid claim in the whole text, so should be construed to " comprise but be not limited to ".In addition, " electric connection " speech is to comprise any indirect means that are electrically connected that directly reach at this.Therefore, be electrically connected at one second device, then represent this first device can be directly connected in this second device, or be connected to this second device through other device or the intersegmental ground connection of connection hand if describe one first device in the literary composition.

In order to solve in the prior art problem that the frame per second that reduces display frame can cause scintillation, the present invention discloses a kind ofly can reduce the power consumption of display system simultaneously and can not have influence on the method and the related display system of the quality of image.In the present invention; Be with two received continuous pictures cut into individually a plurality of image blocks not of uniform size, with the image block be unit calculate between two continuous pictures and difference, according to calculated and difference calculate a momentum ratio between two continuous pictures, and determine whether playing this picture according to the frame per second of this momentum ratio and broadcasting pictures; So that may taking place, the too high picture of scintillation or frame per second stops to play, to reach the purpose of saving power consumption and not influencing image quality simultaneously.

See also Fig. 1, it is for the functional block diagram of the disclosed display system 100 of the present invention.As shown in Figure 1, display system 100 is to comprise block cutting module 110, one and difference calculation module 120, a momentum ratio calculation module 130, a picture modulation module 140, an and memory buffer 150.

Display system 100 is to receive two picture Fn-1 and Fn, and wherein picture Fn-1 and Fn are two pictures playing continuously for quilt, and picture Fn-1 early is shown 100 receptions of device system than picture Fn.Memory buffer 150 is to be used for being shown the picture Fn-1 that device system 100 is received temporary morning, till picture Fn is shown 100 receptions of device system; And after picture Fn is shown 100 receptions of device system, the also at once temporary picture Fn of memory buffer 150.

Block cutting module 110 is not divided into a plurality of first blocks and a plurality of second block according to a resolution with picture Fn-1 with Fn, and these a plurality of first blocks and these a plurality of second blocks are in pairs.See also Fig. 2; Its for will picture Fn-1 shown in Figure 1 and Fn individual not according to a resolution be cut into a plurality of first block BLK1 (1,1), BLK1 (1,11) ..., BLK1 (1191; 1911) and a plurality of second block BLK2 (1; 1), BLK2 (1,11) ..., the simple synoptic diagram of BLK2 (1191,1911).In Fig. 2, be that hypothesis picture Fn-1 and Fn all comprise 1200 * 1920 pixels, and when the resolution of desiring to reach be when being 120 * 192, be that the unit square size that is used for cutting is set at 10 * 10 pixels.Thus, in Fig. 2, picture Fn-1 is cut into totally 120 * 192 first block BLK1 (1; 1), BLK1 (1,11) ..., BLK1 (1191,1911); And picture Fn is cut into totally 192 * 120 second block BLK2 (1; 1), BLK2 (1,11) ..., BLK2 (1191,1911); Making picture Fn-1 shown in Figure 2 and Fn can be regarded as two sizes is 120 * 192 block matrices.Each above-mentioned block all comprises 10 * 10 pixels, and the coordinate figure shown in this each block is the coordinate figure of pixel in the picture of correspondence for the upper left corner of this block; For instance, the coordinate figure of pixel in picture Fn-1 in the upper left corner of the first block BLK1 (11,1901) is (11,1901).Please note; In other embodiments of the invention; The resolution that pixel quantity that single picture comprised and desire are set is not limited by the above-mentioned example of takeing; And the plurality of blocks that single picture cut out does not need as shown in Figure 2 identical, only need abide by each picture and all get final product with the principle of the same manner cutting; For example in a certain other embodiment of the present invention, the first block BLK1 (1,1) and the second block BLK2 (1; 1) both sizes must be identical with ratio (that is both length and wide), but the first block BLK1 (1,1) and the first block BLK1 (1; 11) or the size of the second block BLK2 (1,11) and ratio can be inequality, and the first block BLK1 (1; 11) or second both sizes of block BLK2 (1,11) also must be identical with ratio.

And difference calculation module 120 be calculate by in pairs this first block and one and difference between this second block of 110 generations of block cutting module (Sum of Difference, SOD).With Fig. 2 for instance and difference calculation module 120 can calculate the first block BLK1 (1,1) and the second block BLK2 (1; 1) between, the first block BLK1 (1; 11) with the second block BLK2 (1,11) between ..., the first block BLK1 (1191,1901) and the second block BLK2 (1191; 1901), the first block BLK1 (1191; 1911) with the second block BLK2 (1191,1911) between a plurality of differences altogether, and will this a plurality of differences add the General Logistics Department and produce one and difference divided by the block among picture Fn-1 or the Fn total (that is 120 * 192).Note that in one embodiment of this invention first paired block BLK1 and the difference between the second block BLK2 can be a pixel value difference or a luminance difference, wherein this luminance difference can be resultant via following formula (1) conversion according to this pixel value difference:

Y＝kr*R+kg*G+kb*B (1)

Wherein Y is luminance difference, and R, G, B respectively are redness, green, blue pixel value in this pixel value difference, and kr, kg, kb are respectively to be a fixed value.The conversion of pixel value shown in the formula (1) and brightness value is known for haveing the knack of association area person of the present invention institute, so locate no longer to add to give unnecessary details.This pixel value difference can be the margin of image element summation between all pixels that all pixels that the first block BLK1 comprises and the second block BLK2 comprise or through the margin of image element of normalization (Normalize), but the mode of calculating this pixel value difference among the present invention does not receive the restriction of the above-mentioned example of enumerating; In like manner, this luminance difference can be between all pixels that all pixels that the first block BLK1 comprises and the second block BLK2 comprise brightness value difference summation or through normalized brightness value difference, also can be the brightness value difference of other form; What produced thus, should can be a pixel and difference or brightness and difference with difference.Specifically and difference calculation module 120 is that calculated can calculate according to following equation with difference:

$\mathrm{FA}\_\mathrm{SOD}(m,n)=\underset{m=1}{\overset{M}{\mathrm{\Σ}}}\underset{n=1}{\overset{N}{\mathrm{\Σ}}}|\mathrm{FA}\_P(m,n)-\mathrm{FB}\_P(m,n)|;---\left(2\right)$

M and N are the length of the block matrices representing single picture separately and comprised and wide; The example that comprises 120 * 192 blocks with above-mentioned single picture; This single picture is to can be considered to comprise the block matrices that a size is 120 * 192 elements, and the length of this block matrices be 120, wide be 192.(m n) is the coordinate figure of representing last benchmark pixel of the first block BLK1 and the last benchmark pixel of the second block BLK2; For instance, the first block BLK1 (11,1901) and the second block BLK2 (11; 1901) benchmark pixel is the pixel in both the upper left corner, that is in the pixel that is positioned on picture Fn-1 or the Fn on the coordinate (11,1901); This moment, the value of m was to be 11, and the value of n is to be 1901.FA_SOD (m is to be this and difference n), and as above give an example, this and difference can be a pixel and difference or brightness and difference.FA_P (m n) is the generation difference value of representing the first block BLK1, and when above-mentioned difference be when being a pixel value difference or a luminance difference, this representative difference is to be that on behalf of difference or a brightness, a pixel represent difference.In like manner, (m is the generation difference value of representing on the second block BLK2 n) to FB_P, also can be a pixel and represents difference or a brightness to represent difference.When all block processes that comprised with difference calculation module 120 couples of pictures Fn-1 and Fn finished, each block can produce one and difference separately, that is above-mentioned FA_SOD (m, n).

In one embodiment of this invention and difference calculation module 120 can be further a plurality of paramountships of acquisitions each and difference (Most Significant Bits is MSB) to carry out normalization, to produce a plurality of normalizations and difference.For instance; The codomain of supposing pixel value is 1-255; Then with difference calculation module 120 pixel value 36 (binary value for " 00100100 "), 95 (binary value for " 01011111 "), 172 (binary value for " 10101100 "), 232 (binary value for " 11101000 ") being got the first two paramountship in advance forms " 00 ", " 01 ", " 10 ", " 11 " and etc. four scale-of-two normalization and difference; The different normalizations and the difference that also are about to original pixel value 36,95,172,232 regular 0-3 of turning to are classified, so that the processing of momentum ratio calculation module 130 afterwards.

120 of momentum ratio calculation module 130 bases and difference calculation module are calculated between picture Fn-1 and the Fn all and difference and a plurality of and difference flexible strategy, calculate a momentum ratio MP; The physical significance of momentum ratio MP is the more concrete size of the degree between differences such as pixel value or brightness between picture Fn-1 and the Fn that shows, and therefore when momentum ratio MP was high more, promptly the difference between representative picture Fn-1 and the Fn was big more.In one embodiment of this invention; Momentum ratio calculation module 130 is that a plurality of normalizations that produced with difference calculation module 120 and difference multiply by different and difference flexible strategy (Weight) and corresponding number and totalling according to different numerical value, and produces a weighted sum and difference; A plurality of paramountships of the binary value of momentum ratio calculation module 130 last these weighted sums of acquisition and difference, and produce required momentum ratio MP.Illustrate with 120 pairs of normalizations that pixel value was carried out of difference calculation module with above-mentioned; Momentum ratio calculation module 130 can be that 0 number of blocks multiply by regular and difference 0 and multiply by flexible strategy 1 again, is that 1 number of blocks multiply by normalization and difference 1 and multiply by flexible strategy 1 again, is that 2 number of blocks multiply by that normalization and difference 2 multiply by flexible strategy 4 again and is that 3 number of blocks multiply by normalization and difference 3 multiply by flexible strategy 8 again with normalization and difference with normalization and difference with normalization and difference with normalization and difference, to produce four weighted sum differences.Then momentum ratio calculation module 130 can be with this four weighted sum differences addition, to produce a weighted sum and difference; Last momentum ratio calculation module 130 is got two paramountships before this weighted sum and the difference again, and with generation momentum ratio MP, in other words the value of momentum ratio MP can be " 00 ", " 01 ", " 10 ", " 11 ", that is decimal value 0-3.More specifically for instance; Suppose in 120 * 192 blocks, to calculate at last with difference calculation module 120 that to have 12 * 192 normalizations and difference be that 0 block, 36 * 192 normalization and difference are that 1 block, 64 * 192 normalization and difference are 2 block, to reach 8 * 192 normalizations and difference be 3 block, then resulting weighted sum and difference are to be 0* (12*192) * 1+1* (36*192) * 2+2* (64*192); Then and since 148992 preceding two paramountships when transferring scale-of-two to be for " 10 ", so momentum ratio calculation module 130 will this value that obtains momentum ratio MP for " 10 ".

Picture modulation module 140 is to decide the employed frame per second FR of present display frame Fn and whether determine display frame Fn according to the momentum ratio MP that momentum ratio calculation module 130 is calculated.Picture modulation module 140 is to set up a question blank 145, with as judging frame per second FR and the foundation of broadcasting pictures Fn whether.See also Fig. 3; It is the synoptic diagram according to a question blank 145 of building in the disclosed picture modulation module 140 shown in Figure 1 of one embodiment of the invention, and wherein each non-index field of being comprised of question blank 145 is corresponding to the different value of the frame per second FR of momentum ratio MP or with determining whether playing six ten continuous pictures of numbering by 1 to 60.As shown in Figure 3, question blank 145 employed index fields are the momentum ratio MP that momentum ratio calculation module 130 is calculated, and the different value of momentum ratio MP is corresponding to different frame per second FR; For instance; In Fig. 3; When the value of the received momentum ratio MP of picture modulation module 140 be for " 10 " time; Can know by being drawn reference look-up tables 145 that with this value the employed frame per second FR of display frame is 55Hz, then can according in the question blank 145 determine whether broadcasting pictures Fn corresponding to the playing sequence of different pictures.Note that in the question blank 145 and promptly represent not broadcasting pictures Fn, and the non-index field of not filling with oblique line is promptly represented broadcasting pictures Fn with the non-index field of oblique line filling.

Observing Fig. 3 can know, when the value of momentum ratio MP was big more, pairing frame per second FR was also higher; Otherwise, when the value of momentum ratio MP more hour, pairing frame per second FR is also lower; This be because of question blank shown in Figure 3 145 with image sharpness for paying the utmost attention to.More deeper; Because the value of momentum ratio MP is high more; Be that the difference on numerical value such as pixel value or brightness is big more between representative picture Fn-1 and the Fn, thus need during broadcasting pictures Fn the short dynamic image reaction time (Motion Picture ResponseTime, MPRT); Just can not use too low frame per second FR to come display frame Fn, reduce the sharpness of picture Fn to prevent phenomenons such as the sideline is fuzzy; Otherwise, when the value of momentum ratio MP is low,, can not produce tangible sideline blooming even use lower frame per second FR yet, be to come display frame in the question blank 145 therefore shown in Figure 3, and and then reach the purpose of saving power with lower frame per second FR.

In addition, in question blank shown in Figure 3 145, when the value of momentum ratio MP is hanged down, also can decide not display frame Fn, that is insert each non-index field of oblique line among Fig. 3 according to certain rule and cycle; The consideration of the setting of these not display frames is identical with above-mentioned adjustment to frame per second FR; That is under higher momentum ratio MP and frame per second FR, keep the normal play of picture Fn; And under lower momentum ratio MP and frame per second FR the suitable broadcasting pictures Fn that stops, to reach the purpose of saving power.For instance; Be numbered among Fig. 3 pictures such as 1-12,13-24,25-36,37-48,49-60 demonstration/show state is not to control with same pattern; That is representative picture modulation module 140 is controlled whether display frame with the fixed mode of periodic Control; Yet the fixed mode of this periodic Control is merely one embodiment of the invention, and picture shown in Figure 3 is shown that control mode formed other embodiment that makes alterations must be regarded as category of the present invention.

Please consult Fig. 4 again, it is identical with Fig. 3, also is the synoptic diagram according to the disclosed question blank 145 of of the present invention one another embodiment; Yet Fig. 4 shows that at picture the demand of setting in the control is with shown in Figure 3 different.Because when momentum ratio MP was higher, image content change and pairing frame per second FR were bigger, so naked eyes are difficult for discovering scintillation; Otherwise, when momentum ratio MP and pairing frame per second FR hour, naked eyes are prone to discover scintillation.In question blank shown in Figure 4 145, be with rule momentum ratio MP and the corresponding higher picture of frame per second FR to be stopped to show, to save power with certain cycle; Otherwise in order to reduce the scintillation of momentum ratio MP when low as much as possible avoiding influencing display quality, so the setting of question blank 145 is to avoid stopping to show that the lower picture of momentum ratio MP prevents scintillation.

Question blank 145 shown in Fig. 3 and Fig. 4 is to be that the display system of 60Hz comes for example with the basic frame rate, yet the setting of the disclosed question blank 145 of the present invention also can be used for the display system that basic frame rate is higher 120Hz.See also Fig. 5, the synoptic diagram when it is the display system of 120Hz for question blank shown in Figure 1 145 being applied to basic frame rate.It is same as shown in Figure 3 that question blank 145 shown in Figure 5 is set principle, so locate no longer to add to give unnecessary details.Right because question blank 145 shown in Figure 5 is corresponding to the display rate higher than Fig. 3, therefore in order to reach the purpose of saving power, determine the field of not display frame also more shown in Figure 3 come many.In addition, in a preferred embodiment of the present invention, the pairing display system 100 of Fig. 5 is to calculate luminance difference to obtain required momentum ratio MP.

Except deciding frame per second FR with display system shown in Figure 1 100 and whether the display frame Fn; In another embodiment of the present invention; Be to use (Overdriving) technology of overdriving in the demonstration of picture, the dynamic image reaction time that shows with further raising picture.See also Fig. 6, it is the synoptic diagram according to the disclosed display system 200 of of the present invention one another embodiment.As shown in Figure 6, display system 200 except comprised display system shown in Figure 1 100, other comprises an overdrive circuit 160.Overdrive circuit 160 is to be used for receiving picture Fn and to be cushioned the picture Fn-1 that storer 150 is kept in, to produce the picture FOD that overdrives.Relevantly among the function mode of block cutting module 110 and difference calculation module 120, momentum ratio calculation module 130 and Fig. 1 narrate identically, no longer repeat to give unnecessary details here.Picture modulation module 140 is to receive the picture FOD that overdrives in display system 200, but not the picture Fn shown in Fig. 1; Picture modulation module 140 is to decide to play according to the momentum ratio MP that momentum ratio calculation module 130 is calculated to overdrive the employed frame per second FR of picture FOD and determine whether to play the picture FOD that overdrives; And the mode of decision is identical with the mode of the said reference look-up tables 145 of Fig. 3 to Fig. 5, so locate no longer to add to give unnecessary details.

See also Fig. 7, it is according to the disclosed process flow diagram that reduces the display system power consumption and avoid influencing the method for the quality of image of one embodiment of the invention.As shown in Figure 7, it is following that this method comprises step:

Step 702: one first picture and one second picture are divided into a plurality of first blocks and a plurality of second block according to a resolution individually;

Step 704: calculate in pairs this first block and one and difference between this second block;

Step 706:, calculate a momentum ratio according to all and difference between this first picture and this second picture and a plurality of and difference flexible strategy;

Step 708: determine an employed frame per second and determine whether display frame according to this momentum ratio.

Above-listed step is the summary for the narration of Fig. 1 to Fig. 6, so do not give unnecessary details again at this.Yet will before in the narration other mentioned restrictive condition add all other embodiment that forms in the disclosed process flow diagram of Fig. 7, or above-listed step is carried out reasonable combination or arrangement and other embodiment of producing, must be regarded as category of the present invention.

The present invention discloses a kind of method and relevant display system that reduces the display system power consumption and avoid influencing the quality of image.In the present invention; Two continuous pictures can calculate according to the difference that pixel value or brightness value etc. can be used to react the picture difference degree between these two continuous pictures and difference; And will be corresponding to different blocks in the picture carry out weighting to produce a momentum ratio, with the difference degree of this two continuous pictures of more concrete reaction with difference according to the different of value.By the setting of question blank, make that different momentum ratios can be corresponding to different frame per second and picture show state under different demands, with the purpose that realizes saving power consumption and keep the image display quality at last.

The above is merely preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to covering scope of the present invention.

Claims (8)

1. a display drive method is characterized in that, comprises:

One first picture and one second picture are divided into a plurality of first blocks and a plurality of second block according to a resolution respectively; Wherein this first picture and this second picture are the pictures for a pair of continuous broadcast, and these a plurality of first blocks are in pairs with these a plurality of second blocks;

Calculate in pairs this first block and one and difference between this second block; Should and difference be to comprise calculating this first block and a pixel and difference/brightness and the difference between this second block in pairs, according to following equation this pixel of calculating and difference/brightness and difference:

$\mathrm{FA}\_\mathrm{SOD}(m,n)=\underset{m=1}{\overset{M}{\mathrm{\Σ}}}\underset{n=1}{\overset{N}{\mathrm{\Σ}}}|\mathrm{FA}\_P(m,n)-\mathrm{FB}\_P(m,n)|,$

Wherein this first block and this second block are that each is self-contained a plurality of with the pixel that a matrix is arranged and quantity equates, these a plurality of pixels that this first block is comprised be these a plurality of pixels of being comprised with this second block in pairs, and M and N represent the length of this matrix and wide separately; FA_SOD (m; N) be to be this pixel and difference/brightness and difference, (m is to represent on this first block the coordinate figure of one second benchmark pixel on one first benchmark pixel and this second block n); FA_P (m; N) be to represent pixel/brightness value for one of this first block, (m is to represent pixel/brightness value for one of this second block n) to FB_P;

According to pixels all between this first picture and this second picture and difference/brightness and difference and a plurality of pixel and difference flexible strategy/brightness and difference flexible strategy, calculate a momentum ratio; Calculating this momentum ratio is to comprise:

With pixel and difference/brightness and differences all between this first picture and this second picture; According to each pixel and difference/brightness and difference different one of them pixel and difference flexible strategy/brightness and the difference flexible strategy that multiply by these a plurality of pixels and difference flexible strategy/brightness and difference flexible strategy numerically, to produce a plurality of weighted pixel and difference/brightness and difference; And

Should a plurality of weighted pixel and difference/brightness and difference addition, and pixel that is comprised divided by this first picture or this second picture and/brightness number, to produce this momentum ratio;

Wherein these a plurality of pixels are pixel and difference/brightness and difference corresponding to different numerical value with difference flexible strategy/brightness and difference flexible strategy;

Determine according to this momentum ratio whether an employed frame per second and decision show a picture;

This wherein paired first block is identical with the size of this second block.

2. display drive method as claimed in claim 1 is characterized in that the size of these a plurality of first blocks is differing from each other, and the size of these a plurality of second blocks is differing from each other, perhaps

The size of these a plurality of first blocks is mutually the same, and the size of these a plurality of second blocks is mutually the same.

3. display drive method as claimed in claim 1 is characterized in that, also comprises:

Capture a plurality of paramountships of this pixel and difference/brightness and difference, to produce a regular pixel and difference/brightness and difference.

4. display drive method as claimed in claim 1 is characterized in that, also comprises:

Set up a question blank, wherein this question blank is to store pairing frame per second of this momentum ratio and a show state of display frame under this momentum ratio whether; And

Wherein show at present according to this momentum ratio decision whether employed this frame per second of this second picture and decision show that this second picture is to comprise:

Inquire about this question blank with this momentum ratio as index, to determine this frame per second and whether under this frame per second, to show this second picture.

5. display drive method as claimed in claim 1 is characterized in that, also comprises:

To the processing of overdriving of this first picture and this second picture, to produce the picture of overdriving;

Wherein whether show that according to this momentum ratio employed this frame per second of decision and decision this picture is to comprise:

According to this momentum ratio, decision shows whether employed frame per second of this picture of overdriving and decision show this picture of overdriving.

6. a display system is characterized in that, comprises:

One block cutting module; Be used for receiving one first picture and one second picture; And be used for this first picture and this second picture are divided into a plurality of first blocks and a plurality of second block according to a resolution respectively; Wherein this first picture and this second picture are the pictures for a pair of continuous broadcast, and these a plurality of first blocks are in pairs with these a plurality of second blocks;

One with the difference calculation module, be used for calculating in pairs this first block and one and difference between this second block; Should and difference be to comprise calculating this first block and a pixel and difference/brightness and the difference between this second block in pairs, according to following equation this pixel of calculating and difference/brightness and difference:

$\mathrm{FA}\_\mathrm{SOD}(m,n)=\underset{m=1}{\overset{M}{\mathrm{\Σ}}}\underset{n=1}{\overset{N}{\mathrm{\Σ}}}|\mathrm{FA}\_P(m,n)-\mathrm{FB}\_P(m,n)|,$

Wherein this first block and this second block are that each is self-contained a plurality of with the pixel that a matrix is arranged and quantity equates, these a plurality of pixels that this first block is comprised be these a plurality of pixels of being comprised with this second block in pairs, and M and N represent the length of this matrix and wide separately; FA_SOD (m; N) be to be this pixel and difference/brightness and difference, (m is to represent on this first block the coordinate figure of one second benchmark pixel on one first benchmark pixel and this second block n); FA_P (m; N) be to represent pixel/brightness value for one of this first block, (m is to represent pixel/brightness value for one of this second block n) to FB_P;

One momentum ratio calculation module is according to pixels all between this first picture and this second picture and difference/brightness and difference and a plurality of pixel and difference flexible strategy/brightness and difference flexible strategy, to calculate a momentum ratio; Calculating this momentum ratio is to comprise:

According to each pixel and difference/brightness and difference different one of them pixel and difference flexible strategy/brightness and the difference flexible strategy that multiply by these a plurality of pixels and difference flexible strategy/brightness and difference flexible strategy numerically, to produce a plurality of weighted pixel and difference/brightness and difference; And

Should a plurality of weighted pixel and difference/brightness and difference addition, and pixel that is comprised divided by this first picture or this second picture and/brightness number, to produce this momentum ratio;

Wherein these a plurality of pixels are pixel and difference/brightness and difference corresponding to different numerical value with difference flexible strategy/brightness and difference flexible strategy;

One picture modulation module is used for showing according to this momentum ratio decision whether an employed frame per second and decision show a picture;

This wherein paired first block is identical with the size of this second block.

7. display system as claimed in claim 6 is characterized in that the size of these a plurality of first blocks is differing from each other, and the size of these a plurality of second blocks is differing from each other, or

The size of these a plurality of first blocks is mutually the same, and the size of these a plurality of second blocks is mutually the same.

8. display system as claimed in claim 6 is characterized in that, also comprises:

One overdrive circuit is used for to the processing of overdriving of this first picture and this second picture, to produce the picture of overdriving;

Wherein this picture modulation module is to decide employed frame per second of this picture of overdriving of demonstration and decision whether to show this picture of overdriving according to this momentum ratio.

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