CN102629460A - Method and apparatus for controlling frame frequency of liquid crystal display - Google Patents
Method and apparatus for controlling frame frequency of liquid crystal display Download PDFInfo
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- CN102629460A CN102629460A CN201110332085XA CN201110332085A CN102629460A CN 102629460 A CN102629460 A CN 102629460A CN 201110332085X A CN201110332085X A CN 201110332085XA CN 201110332085 A CN201110332085 A CN 201110332085A CN 102629460 A CN102629460 A CN 102629460A
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Abstract
The embodiment of the invention, which relates to the LCD display field, discloses a method and an apparatus for controlling frame frequency of a liquid crystal display (LCD), so that a problem that image animations jitter can be solved. The method comprises the following steps that: frame images forming an image animation are obtained; different pixels are obtained from each two adjacent frame images; the group number of the different pixels on the each two adjacent frame images is calculated; if the group number of the different pixels is less than a preset value, any of the two adjacent frame images is copied; on the condition that a playing time interval between the two adjacent frame images is not changed, the copied frame image used as a compensation frame image is inserted between the two adjacent frame images; if the group number of the different pixels is greater than the preset value, a picture content of the compensation frame image is calculated according to pixels of the two adjacent frame images; and on the condition that a playing time interval between the two adjacent frame images is not changed, the calculated compensation frame image is inserted between the two adjacent frame images. According to the invention, the method and the apparatus are mainly applied to improvement of picture qualities of an LCD display.
Description
Technical field
The present invention relates to a kind of LCD Technology, relate in particular to LCD Frame-rate Control method and apparatus.
Background technology
The Along with people's growth in the living standard, people for the LCD product picture quality require increasingly high.LCD (liquid crystal display; LCD) display receives image animation to be play; The image animation is made up of a lot of sequential frame images; The corresponding picture of each two field picture, the two field picture of the image animation that LCD display will be to be play is according to the sequencing storage of image animated content development, and LCD display is play these two field pictures successively according to the sequencing of certain frame frequency and image animated content; The broadcast rapidly, continuously of these two field pictures forms the dynamic menu that people's naked eyes are watched.
The image animation that LCD display receives; Image content in this image animation is constantly to change; And when the image content of consecutive frame image changes greatly, owing to the image content of consecutive frame image differs greatly, so; When a picture jumps to next picture, can make the beholder feel that shake has taken place the picture of playing at the image animation.
In the prior art; Adopt dynamic mapping system; Through the mode of insertion transition frames image between the two field picture of image animation, the problem of float when solving LCD display playing video animation, concrete scheme is following: setting has MEMC (Motion Estimate and Motion Compensation in LCD display; Estimation and motion compensation) chip of function; The MEMC chip receives all two field pictures of image animation, through the algorithm of chip internal, between the consecutive frame image, inserts a frame movement compensating frame automatically; The image content of this movement compensating frame is the transition of two two field picture image contents being adjacent, and the image animation of inserting after the movement compensating frame is play according to the reproduction time of original image animation.Double owing to constitute the two field picture quantity of image animation, and the reproduction time of this image animation is constant, so that the frame frequency of LCD display is promoted to 120Hz from 60Hz.
Between two consecutive frame images, insert the motion compensation two field picture,, make the float of the imperceptible broadcast of beholder during to next two field picture, having reduced the amplitude that image content changes by a two field picture Fast transforms.
But; The broadcast effect of the 50/60Hz code stream image that changes in the film source that adopts such scheme to low field frequency is bad; The signal that the code stream that changes into such as the movies signal by 24Hz broadcasts; Because the original signal field frequency is low and pictures a lot of opposite fields are identical, insert the acutely shake of image that compensated frame often produces in this case.
Summary of the invention
The embodiment of the invention provides a kind of LCD Frame-rate Control method and apparatus, and in the time of can solving LCD display playing video animation, the problem of shake appears in picture.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of LCD Frame-rate Control method comprises:
Obtain the two field picture that constitutes the image animation;
Identical position obtains a pixel respectively from per two consecutive frame images, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels;
Calculate the group number of different pixels on per two consecutive frame images, the group number and the preset value of different pixels on said two consecutive frame images compared;
If the group number of different pixels then duplicates any two field picture in said two consecutive frame images less than preset value on two consecutive frame images; The reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images;
If the group number of different pixels is greater than said preset value on two consecutive frame images; Then calculate the image content of compensated frame image according to the pixel of two consecutive frame images; Do not change the reproduction time interval of said two consecutive frame images, the compensated frame image that calculates is inserted between two consecutive frame images.
A kind of LCD Frame-rate Control device comprises:
First acquiring unit is used to obtain the two field picture that constitutes the image animation;
Second acquisition unit is used for that identical position obtains a pixel respectively from per two consecutive frame images, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels;
First computing unit is used to calculate the group number of different pixels on per two consecutive frame images, and the group number and the preset value of different pixels on said two consecutive frame images compared;
Copied cells is used for if the group number of different pixels then duplicates any two field picture in said two consecutive frame images less than preset value on two consecutive frame images;
The first insertion unit, the reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images;
Second computing unit is used for then calculating the image content of compensated frame image according to the pixel of two consecutive frame images if the group number of different pixels is greater than said preset value on two consecutive frame images;
The second insertion unit is used for the compensated frame image that calculates is inserted between two consecutive frame images.
A kind of LCD Frame-rate Control method and apparatus that the embodiment of the invention provides obtains the two field picture that constitutes the image animation; Identical position obtains a pixel respectively from per two consecutive frame images, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels; Calculate the group number of different pixels on per two consecutive frame images, the group number and the preset value of different pixels on said two consecutive frame images compared; If the group number of different pixels then duplicates any two field picture in said two consecutive frame images less than preset value on two consecutive frame images; The reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images; If the group number of different pixels then calculates the image content of compensated frame image greater than said preset value on two consecutive frame images according to the pixel of two consecutive frame images, the compensated frame image that calculates is inserted between two consecutive frame images.
Because can be according to the group number decision compensation policy of different pixels on two consecutive frame images; If two consecutive frame picture material difference are bigger; Then calculate compensated frame and be used for by way of compensation, if two less or indifferences of consecutive frame picture material difference, any one that then duplicates in two consecutive frame images is used for frame by way of compensation; So when the playing video animation; When the corresponding picture of two field picture transformed to the corresponding picture of another two field picture, the variation of image content was comparatively mild, and then the problem of shake appears in the film source that can effectively reduce to comprise low field frequency at interior two field picture picture when playing.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The process flow diagram of the LCD Frame-rate Control method that Fig. 1 provides for the embodiment of the invention;
The process flow diagram of another LCD Frame-rate Control method that Fig. 2 provides for the embodiment of the invention;
The structural drawing of the LCD Frame-rate Control device that Fig. 3 provides for the embodiment of the invention;
The structural drawing of another LCD Frame-rate Control device that Fig. 4 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention provides a kind of LCD Frame-rate Control method, and is as shown in Figure 1, comprising:
101, obtain the two field picture that constitutes the image animation.
The MEMC chip can be used for LCD display image animation is handled; Be example with the MEMC chip in the embodiment of the invention; The LCD Frame-rate Control method that the embodiment of the invention provides is described, but is not limited in the LCD Frame-rate Control method of using MEMC chip embodiment of the present invention embodiment to provide in the actual application.
In order to realize processing, at first, can obtain the two field picture that constitutes the image animation through the MEMC chip to LCD image animation.
102, identical position obtains a pixel respectively from per two consecutive frame images, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels.
The MEMC chip is confirmed the difference of any two the consecutive frame image frame contents of image animation.
Concrete, MEMC chip identical position from per two consecutive frame images obtains a pixel respectively, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels.Two consecutive frame image different pixels group numbers are many more, explain that the difference of two consecutive frame image frame contents is big more.
For different image animations, for confirming foundation to be provided in the subsequent step to the processing mode of image animation.
103, calculate the group number of different pixels on per two consecutive frame images, the group number and the preset value of different pixels on said two consecutive frame images compared.
Preset value in the embodiment of the invention can be set according to actual needs, as being set to 100, promptly with the separatrix of 100 different pixels groups for definite two consecutive frame images.In addition, different displays has different resolution usually, and the setting of preset value also can be provided with according to different resolution.Can be provided with voluntarily by being used for through input window, also can in initial design, said possible data be set, according to circumstances select voluntarily by the MEMC chip.
If the group number of different pixels is less than preset value on two consecutive frame images, then execution in step 104; If the group number of different pixels is greater than said preset value on two consecutive frame images, then execution in step 105.
104, duplicate any two field picture in said two consecutive frame images; The reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images.
105, calculate the image content of compensated frame image according to the pixel of two consecutive frame images, do not change the reproduction time interval of said two consecutive frame images, the compensated frame image that calculates is inserted between two consecutive frame images.
A kind of LCD Frame-rate Control method that present embodiment provides; Because can be according to the group number decision compensation policy of different pixels on two consecutive frame images; If two consecutive frame picture material difference are bigger; Then calculate compensated frame and be used for by way of compensation, if two less or indifferences of consecutive frame picture material difference, any one that then duplicates in two consecutive frame images is used for frame by way of compensation; So when the playing video animation; When the corresponding picture of two field picture transformed to the corresponding picture of another two field picture, the variation of image content was comparatively mild, and then the problem of shake appears in the film source that can effectively reduce to comprise low field frequency at interior two field picture picture when playing.
As a kind of improvement of present embodiment, the embodiment of the invention provides the method for another kind of LCD Frame-rate Control technology, and is as shown in Figure 2, comprising:
201, obtain the two field picture that constitutes the image animation.
The MEMC chip can be used for LCD display image animation is handled; Be example with the MEMC chip in the embodiment of the invention; The LCD Frame-rate Control method that the embodiment of the invention provides is described, but is not limited in the LCD Frame-rate Control method of using MEMC chip embodiment of the present invention embodiment to provide in the actual application.
In order to realize processing, at first, can obtain the two field picture that constitutes the image animation through the MEMC chip to LCD image animation.
202, identical position obtains a pixel respectively from per two consecutive frame images, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels.
The MEMC chip receives the two field picture of image animation to be play, and each two field picture is a static picture, and the MEMC chip obtains adjacent two two field picture image contents, confirms the difference of any two the consecutive frame image frame contents of image animation.
Concrete, MEMC chip identical position from per two consecutive frame images obtains a pixel respectively, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels.Two consecutive frame image different pixels group numbers are many more, explain that the difference of two consecutive frame image frame contents is big more.
For different image animations, for confirming foundation to be provided in the subsequent step to the processing mode of image animation.
203, calculate the group number of different pixels on per two consecutive frame images, the group number and the preset value of different pixels on said two consecutive frame images compared.
Preset value in the embodiment of the invention can be set according to actual needs, as being set to 100, promptly with the separatrix of 100 different pixels groups for definite two consecutive frame images.In addition, different displays has different resolution usually, and the setting of preset value also can be provided with according to different resolution.Can be provided with voluntarily by being used for through input window, also can in initial design, said possible data be set, according to circumstances select voluntarily by the MEMC chip.
If the group number of different pixels is less than preset value on two consecutive frame images, then execution in step 204; If the group number of different pixels is greater than said preset value on two consecutive frame images, then execution in step 206; Group number as if different pixels on two consecutive frame images equals said preset value, and then the MEMC chip is selected execution in step 204 or 206 according to setting.
Being provided with of MEMC chip can be the rule that is provided with that when dispatching from the factory, encapsulates in this step, also can in use be provided with as required by the user, do not do qualification at this.
204, group number and the preset cut off value with different pixels on two consecutive frame images compares, and confirms between said two consecutive frame images, to insert the quantity of compensated frame image.
In order to confirm between said two consecutive frame images, to insert the quantity of compensated frame image, the MEMC chip compares the group number and the preset cut off value of different pixels on two consecutive frame images.
About confirming of the quantity of compensated frame image, can be that optional a plurality of numerical value are set when dispatching from the factory, in use, the MEMC chip is according to the group number of different pixels on two consecutive frame images and the relation between the preset cut off value, the selection relevant numerical.
According to the image content amplitude of variation between the two field picture in the image animation, the MEMC chip confirms between two consecutive frame images, to insert the quantity of compensated frame image.Usually, if the image content amplitude of variation between the two field picture is bigger in the image animation, can between adjacent two two field pictures, insert a fairly large number of compensated frame image; If the image content amplitude of variation in the image animation between the two field picture is less, can between adjacent two two field pictures, insert the compensated frame image of negligible amounts.
Further, optional, if the group number of different pixels is greater than said preset cut off value on said two consecutive frame images, then the MEMC chip inserts at least three compensated frame images between said two consecutive frame images;
If the group number of different pixels is less than said preset cut off value on said two consecutive frame images, then the MEMC chip inserts one or two compensated frame image between said two adjacent images.
The concrete quantity of inserting the compensated frame image, MEMC chip can be confirmed according to the group number of different pixels on two consecutive frame images, confirm that specifically mode can be an any-mode well-known to those skilled in the art, repeat no more at this.
Preset cut off value in the embodiment of the invention can be set according to actual needs, can when the MEMC chip dispatches from the factory, set, and also can when the user uses, be set through input window by the user.
205, duplicate any two field picture in said two consecutive frame images according to the quantity of said insertion compensated frame image; The reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images.
206, calculate the image content of compensated frame image according to the pixel of two consecutive frame images, do not change the reproduction time interval of said two consecutive frame images, the compensated frame image that calculates is inserted between two consecutive frame images.
Further optional, this step comprises:
The MEMC chip is searched two pixels that are used to represent same image content on said two consecutive frame images, and obtains horizontal ordinate and ordinate on the place two field picture of these two pixels;
The MEMC chip calculates the horizontal ordinate and the ordinate of each pixel on the said compensated frame image according to the quantity of said horizontal ordinate, ordinate and said insertion compensated frame image.Concrete; The difference of the horizontal ordinate of these two pixels of MEMC chip calculating and the difference of ordinate; With the quantity of inserting the compensated frame image just the difference of difference and the ordinate of horizontal ordinate carry out five equilibrium respectively and calculate, with the difference of horizontal ordinate and the difference Along ent place insertion compensated frame of ordinate.
Concrete, the horizontal ordinate of each pixel and ordinate computing formula are on the said compensated frame image: X1=1/ (n+1) * M1+n/ (n+1) * M2, Y1=1/ (n+1) * N1+n/ (n+1) * N2; Second two field picture, X2=2/ (n+1) * M1+ (n-1)/(n+1) * M2, Y2=2/ (n+1) * N1+ (n-1)/(n+1) * N2; ... n two field picture, Xn=n/ (n+1) * M1+1/ (n+1) * M2, Yn=n/ (n+1) * N1+1/ (n+1) * N2; Wherein, n representes the total insertion picture number between adjacent two two field pictures, and M1, M2, N1 and N2 are respectively horizontal ordinate and the ordinate of two pixels of correspondence on two field picture of the same image content of expression in adjacent two two field pictures.
A kind of LCD Frame-rate Control method that present embodiment provides; Because can be according to the group number decision compensation policy of different pixels on two consecutive frame images; If two consecutive frame picture material difference are bigger; Then calculate compensated frame and be used for by way of compensation, if two less or indifferences of consecutive frame picture material difference, any one that then duplicates in two consecutive frame images is used for frame by way of compensation; So when the playing video animation; When the corresponding picture of two field picture transformed to the corresponding picture of another two field picture, the variation of image content was comparatively mild, and then the problem of shake appears in the film source that can effectively reduce to comprise low field frequency at interior two field picture picture when playing.
The embodiment of the invention provides a kind of LCD Frame-rate Control device; As shown in Figure 3, comprising: first acquiring unit 31, second acquisition unit 32, first computing unit 33, copied cells 34, the first insertion unit 35, second computing unit 36, the second insertion unit 37.
First acquiring unit 31 is used to obtain the two field picture that constitutes the image animation;
Second acquisition unit 32 is used for that identical position obtains a pixel respectively from per two consecutive frame images, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels;
First computing unit 33 is used to calculate the group number of different pixels on per two consecutive frame images, and the group number and the preset value of different pixels on said two consecutive frame images compared;
Copied cells 34 is used for if the group number of different pixels then duplicates any two field picture in said two consecutive frame images less than preset value on two consecutive frame images;
The first insertion unit 35, the reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images;
Second computing unit 36 is used for then calculating the image content of compensated frame image according to the pixel of two consecutive frame images if the group number of different pixels is greater than said preset value on two consecutive frame images;
The second insertion unit 37 is used for the compensated frame image that calculates is inserted between two consecutive frame images.
A kind of LCD Frame-rate Control device that present embodiment provides; Because can be according to the group number decision compensation policy of different pixels on two consecutive frame images; If two consecutive frame picture material difference are bigger; Then calculate compensated frame and be used for by way of compensation, if two less or indifferences of consecutive frame picture material difference, any one that then duplicates in two consecutive frame images is used for frame by way of compensation; So when the playing video animation; When the corresponding picture of two field picture transformed to the corresponding picture of another two field picture, the variation of image content was comparatively mild, and then the problem of shake appears in the film source that can effectively reduce to comprise low field frequency at interior two field picture picture when playing.
A kind of improvement as present embodiment; The embodiment of the invention provides another kind of LCD Frame-rate Control device; As shown in Figure 4, comprising: first acquiring unit 41, second acquisition unit 42, first computing unit 43, confirm unit 44, copied cells 45, the first insertion unit 46, second computing unit 47, the second insertion unit 48.
Wherein, confirm that unit 44 comprises: first insert module 441, second insert module 442; Second computing unit 47 comprises: search module 471, first computing module 472.
First acquiring unit 41 is used to obtain the two field picture that constitutes the image animation;
Concrete, first insert module 441 is used for then between said two consecutive frame images, inserting at least three compensated frame images if the group number of different pixels is greater than said preset cut off value on said two consecutive frame images;
Copied cells 45 is used for if the group number of different pixels then duplicates any two field picture in said two consecutive frame images according to the quantity of said insertion compensated frame image less than preset value on two consecutive frame images;
The first insertion unit 46, the reproduction time that does not change said two consecutive frame images at interval, with all duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images;
Concrete, search module 471, be used to search two pixels that are used to represent same image content on said two consecutive frame images, and obtain horizontal ordinate and the ordinate on the place two field picture of these two pixels;
Concrete, the horizontal ordinate of each pixel and ordinate computing formula are on the said compensated frame image: X1=1/ (n+1) * M1+n/ (n+1) * M2, Y1=1/ (n+1) * N1+n/ (n+1) * N2; Second two field picture, X2=2/ (n+1) * M1+ (n-1)/(n+1) * M2, Y2=2/ (n+1) * N1+ (n-1)/(n+1) * N2; ... n two field picture, Xn=n/ (n+1) * M1+1/ (n+1) * M2, Yn=n/ (n+1) * N1+1/ (n+1) * N2; Wherein, n representes the total insertion picture number between adjacent two two field pictures, and M1, M2, N1 and N2 are respectively horizontal ordinate and the ordinate of two pixels of correspondence on two field picture of the same image content of expression in adjacent two two field pictures.
The second insertion unit 48, the compensated frame image that is used for all are calculated inserts between two consecutive frame images.
A kind of LCD Frame-rate Control device that present embodiment provides; Because can be according to the group number decision compensation policy of different pixels on two consecutive frame images; If two consecutive frame picture material difference are bigger; Then calculate compensated frame and be used for by way of compensation, if two less or indifferences of consecutive frame picture material difference, any one that then duplicates in two consecutive frame images is used for frame by way of compensation; So when the playing video animation; When the corresponding picture of two field picture transformed to the corresponding picture of another two field picture, the variation of image content was comparatively mild, and then the problem of shake appears in the film source that can effectively reduce to comprise low field frequency at interior two field picture picture when playing.
Through the description of above embodiment, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better embodiment under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product, and this computer software product is stored in the storage medium that can read, like the floppy disk of computing machine; Hard disk or CD etc.; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection domain with claim.
Claims (11)
1. a LCD Frame-rate Control method is characterized in that, comprising:
Obtain the two field picture that constitutes the image animation;
Identical position obtains a pixel respectively from per two consecutive frame images, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels;
Calculate the group number of different pixels on per two consecutive frame images, the group number and the preset value of different pixels on said two consecutive frame images compared;
If the group number of different pixels then duplicates any two field picture in said two consecutive frame images less than preset value on two consecutive frame images; The reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images;
If the group number of different pixels is greater than said preset value on two consecutive frame images; Then calculate the image content of compensated frame image according to the pixel of two consecutive frame images; Do not change the reproduction time interval of said two consecutive frame images, the compensated frame image that calculates is inserted between two consecutive frame images.
2. LCD Frame-rate Control method according to claim 1 is characterized in that said method also comprises:
Group number as if different pixels on two consecutive frame images equals said preset value, then duplicates any two field picture in said two consecutive frame images; The reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images; Perhaps, calculate the image content of compensated frame image, the compensated frame image that calculates is inserted between two consecutive frame images according to the pixel of two consecutive frame images.
3. LCD Frame-rate Control method according to claim 1 and 2 is characterized in that, duplicates in said two consecutive frame images before any two field picture said, and said method also comprises:
The group number and the preset cut off value of different pixels on two consecutive frame images are compared, confirm between said two consecutive frame images, to insert the quantity of compensated frame image;
Saidly duplicate that any two field picture is in said two consecutive frame images: duplicate any two field picture in said two consecutive frame images according to the quantity of said insertion compensated frame image.
4. LCD Frame-rate Control method according to claim 3; It is characterized in that; Said group number and preset cut off value with different pixels on said two consecutive frame images compares, and confirms that the quantity of between said two consecutive frame images, inserting the compensated frame image comprises:
If the group number of different pixels is greater than said preset cut off value on said two consecutive frame images, then between said two consecutive frame images, insert at least three compensated frame images;
If the group number of different pixels is less than said preset cut off value on said two consecutive frame images, then between said two adjacent images, insert one or two compensated frame image.
5. LCD Frame-rate Control method according to claim 3 is characterized in that, the image content that said pixel according to two consecutive frame images is calculated the compensated frame image comprises:
Search two pixels that are used to represent same image content on said two consecutive frame images, and obtain horizontal ordinate and ordinate on the place two field picture of these two pixels;
Calculate the horizontal ordinate and the ordinate of each pixel on the said compensated frame image according to the quantity of said horizontal ordinate, ordinate and said insertion compensated frame image.
6. LCD Frame-rate Control method according to claim 5; It is characterized in that; The horizontal ordinate of each pixel and ordinate computing formula are on the said compensated frame image: first two field picture, X1=1/ (n+1) * M1+n/ (n+1) * M2, Y1=1/ (n+1) * N1+n/ (n+1) * N2; Second two field picture, X2=2/ (n+1) * M1+ (n-1)/(n+1) * M2, Y2=2/ (n+1) * N1+ (n-1)/(n+1) * N2; ... n two field picture, Xn=n/ (n+1) * M1+1/ (n+1) * M2, Yn=n/ (n+1) * N1+1/ (n+1) * N2; Wherein, n representes the total insertion picture number between adjacent two two field pictures, and M1, M2, N1 and N2 are respectively horizontal ordinate and the ordinate of two pixels of correspondence on two field picture of the same image content of expression in adjacent two two field pictures.
7. a LCD Frame-rate Control device is characterized in that, comprising:
First acquiring unit is used to obtain the two field picture that constitutes the image animation;
Second acquisition unit is used for that identical position obtains a pixel respectively from per two consecutive frame images, two pixels that get access to is compared, if these two pixel differences then are designated as one group of different pixels;
First computing unit is used to calculate the group number of different pixels on per two consecutive frame images, and the group number and the preset value of different pixels on said two consecutive frame images compared;
Copied cells is used for if the group number of different pixels then duplicates any two field picture in said two consecutive frame images less than preset value on two consecutive frame images;
The first insertion unit, the reproduction time that does not change said two consecutive frame images at interval, with duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images;
Second computing unit is used for then calculating the image content of compensated frame image according to the pixel of two consecutive frame images if the group number of different pixels is greater than said preset value on two consecutive frame images;
The second insertion unit is used for the compensated frame image that calculates is inserted between two consecutive frame images.
8. LCD Frame-rate Control device according to claim 7 is characterized in that, also comprises:
Confirm the unit, be used for the group number and the preset cut off value of different pixels on said two consecutive frame images are compared, confirm between said two consecutive frame images, to insert the quantity of compensated frame image;
Said copied cells also is used for duplicating any two field picture of said two consecutive frame images according to the quantity of said insertion compensated frame image;
The first insertion unit, also be used for all duplicate the two field picture that obtains by way of compensation two field picture insert between said two consecutive frame images;
Second computing unit also is used for calculating according to the quantity of said insertion compensated frame image the compensated frame image of two consecutive frame images of insertion of respective numbers;
The second insertion unit, the compensated frame image that also is used for all are calculated inserts between two consecutive frame images.
9. LCD Frame-rate Control device according to claim 8 is characterized in that, said definite unit comprises:
First insert module is used for then between said two consecutive frame images, inserting at least three compensated frame images if the group number of different pixels is greater than said preset cut off value on said two consecutive frame images;
Second insert module is used for then between said two adjacent images, inserting one or two compensated frame image if the group number of different pixels is less than said preset cut off value on said two consecutive frame images.
10. LCD Frame-rate Control device according to claim 9 is characterized in that, said second computing unit comprises:
Search module, be used to search two pixels that are used to represent same image content on said two consecutive frame images, and obtain horizontal ordinate and the ordinate on the place two field picture of these two pixels;
First computing module is used for calculating according to the quantity of said horizontal ordinate, ordinate and said insertion compensated frame image the horizontal ordinate and the ordinate of each pixel on the said respective numbers compensated frame image.
11. LCD Frame-rate Control device according to claim 10; It is characterized in that; The horizontal ordinate of each pixel and ordinate computing formula are on the said compensated frame image: X1=1/ (n+1) * M1+n/ (n+1) * M2, Y1=1/ (n+1) * N1+n/ (n+1) * N2; Second two field picture, X2=2/ (n+1) * M1+ (n-1)/(n+1) * M2, Y2=2/ (n+1) * N1+ (n-1)/(n+1) * N2; ... n two field picture, Xn=n/ (n+1) * M1+1/ (n+1) * M2, Yn=n/ (n+1) * N1+1/ (n+1) * N2; Wherein, n representes the total insertion picture number between adjacent two two field pictures, and M1, M2, N1 and N2 are respectively horizontal ordinate and the ordinate of two pixels of correspondence on two field picture of the same image content of expression in adjacent two two field pictures.
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