CN102629460B - 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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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 liquid crystal display frame frequency control method and device.
Background technology
Along with the raising of people's living standard, people are more and more higher for the requirement of LCD product picture quality.LCD (liquid crystal display, liquid crystal display) display receives image animation to be played, image animation is comprised of a lot of sequential frame images, the corresponding picture of each two field picture, LCD display develops the two field picture of image animation to be played sequencing storage according to image animated content, LCD display is play these two field pictures successively according to the sequencing of certain frame frequency and image animated content, the broadcasting 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, when the image content in this image animation is constantly to change, and when the image content of consecutive frame image changes greatly, because the image content of consecutive frame image differs greatly, so, when image animation jumps to next picture from a picture, can make beholder feel that shake has occurred the picture of playing.
In prior art, adopt dynamic mapping system, by inserting the mode of transition frames image between the two field picture at image animation, the problem of float while solving LCD display playing video animation, concrete scheme is as follows: in LCD display, arrange and have MEMC (Motion Estimate and Motion Compensation, estimation and motion compensation) chip of function, MEMC chip receives all two field pictures of image animation, by the algorithm of chip internal, between consecutive frame image, automatically insert a frame movement compensating frame, the image content of this movement compensating frame is the transition of two two field picture image contents being adjacent, inserting movement compensating frame image animation afterwards plays according to the reproduction time of original image animation.Because the two field picture quantity that forms image animation doubles, 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 motion compensation two field picture, during to next two field picture, having reduced the amplitude that image content changes by a two field picture Fast transforms, make the float of the imperceptible broadcasting of beholder.
But, broadcast effect at the 50/60Hz code stream image that adopts such scheme to change into the film source of low field frequency is bad, such as the signal of the code stream broadcast being changed into by the movies signal of 24Hz, because original signal field frequency is low and the picture of a lot of opposite fields is identical, insert in this case the acutely shake of image that compensated frame often produces.
Summary of the invention
The embodiment of the present invention provides a kind of liquid crystal display frame frequency control method and device, 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 liquid crystal display frame frequency control method, comprising:
Obtain the two field picture that forms image animation;
From every two consecutive frame images, identical position obtains respectively a pixel, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels;
Calculate the group number of different pixels on every two consecutive frame images, group number and the preset value of different pixels on described two consecutive frame images are compared;
If the group number of different pixels is less than preset value on two consecutive frame images, copy any two field picture in described two consecutive frame images; Do not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images;
If the group number of different pixels is greater than described preset value on two consecutive frame images, according to the pixel of two consecutive frame images, calculate the image content of compensated frame image, do not change the reproduction time interval of described two consecutive frame images, the compensated frame image calculating is inserted between two consecutive frame images.
A kind of liquid crystal display frame frequency control device, comprising:
The first acquiring unit, for obtaining the two field picture that forms image animation;
Second acquisition unit, obtains respectively a pixel for identical position from every two consecutive frame images, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels;
The first computing unit, for calculating the group number of different pixels on every two consecutive frame images, compares group number and the preset value of different pixels on described two consecutive frame images;
Copied cells, if be less than preset value for the group number of different pixels on two consecutive frame images, copies any two field picture in described two consecutive frame images;
The first plug-in unit, does not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images;
The second computing unit, if be greater than described preset value for the group number of different pixels on two consecutive frame images, calculates the image content of compensated frame image according to the pixel of two consecutive frame images;
The second plug-in unit, for inserting the compensated frame image calculating between two consecutive frame images.
A kind of liquid crystal display frame frequency control method and device that the embodiment of the present invention provides, obtain the two field picture that forms image animation; From every two consecutive frame images, identical position obtains respectively a pixel, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels; Calculate the group number of different pixels on every two consecutive frame images, group number and the preset value of different pixels on described two consecutive frame images are compared; If the group number of different pixels is less than preset value on two consecutive frame images, copy any two field picture in described two consecutive frame images; Do not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images; If the group number of different pixels is greater than described preset value on two consecutive frame images, according to the pixel of two consecutive frame images, calculate the image content of compensated frame image, the compensated frame image calculating is inserted between two consecutive frame images.
Owing to determining compensation policy according to the group number of different pixels on two consecutive frame images, if two consecutive frame picture material difference are larger, calculate compensated frame for by way of compensation, if two consecutive frame picture material difference are less or indifference, copy any one in two consecutive frame images for frame by way of compensation, so when playing video animation, during from changing picture corresponding to two field picture to picture corresponding to another two field picture, the variation of image content is comparatively mild, and then there is the problem of shaking at interior two field picture picture when playing in the film source that can effectively reduce to comprise low field frequency.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of the liquid crystal display frame frequency control method that Fig. 1 provides for the embodiment of the present invention;
The flow chart of another liquid crystal display frame frequency control method that Fig. 2 provides for the embodiment of the present invention;
The structure chart of the liquid crystal display frame frequency control device that Fig. 3 provides for the embodiment of the present invention;
The structure chart of another liquid crystal display frame frequency control device that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of liquid crystal display frame frequency control method, as shown in Figure 1, comprising:
101, obtain the two field picture that forms image animation.
MEMC chip can be for processing LCD display image animation, in the embodiment of the present invention take MEMC chip as example, the liquid crystal display frame frequency control method that the embodiment of the present invention provides is described, but be not limited in actual application, uses MEMC chip to implement the liquid crystal display frame frequency control method that the embodiment of the present invention provides.
In order to realize the processing to LCD image animation, first, can obtain the two field picture that forms image animation by MEMC chip.
102, from every two consecutive frame images, identical position obtains respectively a pixel, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels.
MEMC chip is determined the difference of any two the consecutive frame image frame contents of image animation.
Concrete, MEMC chip obtains respectively a pixel in identical position from every two consecutive frame images, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels.Two consecutive frame image different pixels group numbers are more, illustrate that the difference of two consecutive frame image frame contents is larger.
For different image animations, for determining and provide foundation to the processing mode of image animation in subsequent step.
103, calculate the group number of different pixels on every two consecutive frame images, group number and the preset value of different pixels on described two consecutive frame images are compared.
Preset value in the embodiment of the present invention can be set according to actual needs, as being set to 100, take 100 different pixels groups as determining the line of demarcation of two consecutive frame images.In addition, different displays, has different resolution conventionally, and the setting of preset value also can arrange according to different resolution.Can, by input window by for arranging voluntarily, also can in initial design, described possible data be set, by MEMC chip, according to circumstances be selected voluntarily.
If the group number of different pixels is less than preset value on two consecutive frame images, perform step 104; If the group number of different pixels is greater than described preset value on two consecutive frame images, perform step 105.
104, copy any two field picture in described two consecutive frame images; Do not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images.
105, according to the pixel of two consecutive frame images, calculate the image content of compensated frame image, do not change the reproduction time interval of described two consecutive frame images, the compensated frame image calculating is inserted between two consecutive frame images.
A kind of liquid crystal display frame frequency control method that the present embodiment provides, owing to determining compensation policy according to the group number of different pixels on two consecutive frame images, if two consecutive frame picture material difference are larger, calculate compensated frame for by way of compensation, if two consecutive frame picture material difference are less or indifference, copy any one in two consecutive frame images for frame by way of compensation, so when playing video animation, during from changing picture corresponding to two field picture to picture corresponding to another two field picture, the variation of image content is comparatively mild, and then there is the problem of shaking at interior two field picture picture when playing in the film source that can effectively reduce to comprise low field frequency.
One as the present embodiment is improved, and the embodiment of the present invention provides the method for another kind of liquid crystal display frame frequency control technology, as shown in Figure 2, comprising:
201, obtain the two field picture that forms image animation.
MEMC chip can be for processing LCD display image animation, in the embodiment of the present invention take MEMC chip as example, the liquid crystal display frame frequency control method that the embodiment of the present invention provides is described, but be not limited in actual application, uses MEMC chip to implement the liquid crystal display frame frequency control method that the embodiment of the present invention provides.
In order to realize the processing to LCD image animation, first, can obtain the two field picture that forms image animation by MEMC chip.
202, from every two consecutive frame images, identical position obtains respectively a pixel, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels.
MEMC chip receives the two field picture of image animation to be played, and each two field picture is a static picture, and MEMC chip obtains adjacent two two field picture image contents, determines the difference of any two the consecutive frame image frame contents of image animation.
Concrete, MEMC chip obtains respectively a pixel in identical position from every two consecutive frame images, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels.Two consecutive frame image different pixels group numbers are more, illustrate that the difference of two consecutive frame image frame contents is larger.
For different image animations, for determining and provide foundation to the processing mode of image animation in subsequent step.
203, calculate the group number of different pixels on every two consecutive frame images, group number and the preset value of different pixels on described two consecutive frame images are compared.
Preset value in the embodiment of the present invention can be set according to actual needs, as being set to 100, take 100 different pixels groups as determining the line of demarcation of two consecutive frame images.In addition, different displays, has different resolution conventionally, and the setting of preset value also can arrange according to different resolution.Can, by input window by for arranging voluntarily, also can in initial design, described possible data be set, by MEMC chip, according to circumstances be selected voluntarily.
If the group number of different pixels is less than preset value on two consecutive frame images, perform step 204; If the group number of different pixels is greater than described preset value on two consecutive frame images, perform step 206; If the group number of different pixels equals described preset value on two consecutive frame images, MEMC chip is selected execution step 204 or 206 according to setting.
In this step, arranging of MEMC chip can be the rule that arranges encapsulating when dispatching from the factory, and also can in use be arranged as required by user, at this, do not limit.
204, group number and the default cut off value of different pixels on two consecutive frame images are compared, determine the quantity of inserting compensated frame image between described two consecutive frame images.
In order to determine the quantity of inserting compensated frame image between described two consecutive frame images, MEMC chip compares group number and the default cut off value of different pixels on two consecutive frame images.
About determining of the quantity of compensated frame image, can be that optional multiple numerical value is set when dispatching from the factory, in use, MEMC chip, according to the relation between group number and the default cut off value of different pixels on two consecutive frame images, is selected corresponding numerical value.
According to the image content amplitude of variation between two field picture in image animation, MEMC chip is determined the quantity of inserting compensated frame image between two consecutive frame images.Conventionally, if the image content amplitude of variation in image animation between two field picture is larger, can between adjacent two two field pictures, insert a fairly large number of compensated frame image; If the image content amplitude of variation in image animation between 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 described default cut off value on described two consecutive frame images, MEMC chip inserts at least three compensated frame images between described two consecutive frame images;
If the group number of different pixels is less than described default cut off value on described two consecutive frame images, MEMC chip inserts one or two compensated frame image between described two adjacent images.
The concrete quantity of inserting compensated frame image, MEMC chip can be determined according to the group number of different pixels on two consecutive frame images, specifically determines that mode can be any-mode well-known to those skilled in the art, does not repeat them here.
Default cut off value in the embodiment of the present invention, can set according to actual needs, can when MEMC chip dispatches from the factory, set, and also can, when user uses, by user, by input window, be set.
205, according to the quantity of described insertion compensated frame image, copy any two field picture in described two consecutive frame images; Do not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images.
206, according to the pixel of two consecutive frame images, calculate the image content of compensated frame image, do not change the reproduction time interval of described two consecutive frame images, the compensated frame image calculating is inserted between two consecutive frame images.
Further alternative, this step comprises:
MEMC chip is searched on described two consecutive frame images for representing two pixels of same picture content, and obtains abscissa and ordinate on the place two field picture of these two pixels;
MEMC chip calculates abscissa and the ordinate of each pixel on described compensated frame image according to the quantity of described abscissa, ordinate and described insertion compensated frame image.Concrete, MEMC chip calculates the difference of abscissa and the difference of ordinate of these two pixels, with the quantity of inserting compensated frame image just the difference of abscissa and the difference of ordinate carry out respectively decile calculating, the difference Along ent place of the difference of abscissa and ordinate is being inserted to compensated frame.
Concrete, on described compensated frame image, the abscissa of each pixel and ordinate computing formula are: X1=1/ (n+1) × M1+n/ (n+1) × M2, Y1=1/ (n+1) × N1+n/ (n+1) × N2; The 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 represents the total insertion picture number between adjacent two two field pictures, and M1, M2, N1 and N2 are respectively abscissa and the ordinate of two pixels of correspondence that represent same picture content in adjacent two two field pictures on two field picture.
A kind of liquid crystal display frame frequency control method that the present embodiment provides, owing to determining compensation policy according to the group number of different pixels on two consecutive frame images, if two consecutive frame picture material difference are larger, calculate compensated frame for by way of compensation, if two consecutive frame picture material difference are less or indifference, copy any one in two consecutive frame images for frame by way of compensation, so when playing video animation, during from changing picture corresponding to two field picture to picture corresponding to another two field picture, the variation of image content is comparatively mild, and then there is the problem of shaking at interior two field picture picture when playing in the film source that can effectively reduce to comprise low field frequency.
The embodiment of the present invention provides a kind of liquid crystal display frame frequency control device, as shown in Figure 3, comprising: the first acquiring unit 31, second acquisition unit 32, the first computing unit 33, copied cells 34, the first plug-in unit 35, the second computing unit 36, the second plug-in unit 37.
The first acquiring unit 31, for obtaining the two field picture that forms image animation;
The first computing unit 33, for calculating the group number of different pixels on every two consecutive frame images, compares group number and the preset value of different pixels on described two consecutive frame images;
Copied cells 34, if be less than preset value for the group number of different pixels on two consecutive frame images, copies any two field picture in described two consecutive frame images;
The first plug-in unit 35, does not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images;
The second computing unit 36, if be greater than described preset value for the group number of different pixels on two consecutive frame images, calculates the image content of compensated frame image according to the pixel of two consecutive frame images;
The second plug-in unit 37, for inserting the compensated frame image calculating between two consecutive frame images.
A kind of liquid crystal display frame frequency control device that the present embodiment provides, owing to determining compensation policy according to the group number of different pixels on two consecutive frame images, if two consecutive frame picture material difference are larger, calculate compensated frame for by way of compensation, if two consecutive frame picture material difference are less or indifference, copy any one in two consecutive frame images for frame by way of compensation, so when playing video animation, during from changing picture corresponding to two field picture to picture corresponding to another two field picture, the variation of image content is comparatively mild, and then there is the problem of shaking at interior two field picture picture when playing in the film source that can effectively reduce to comprise low field frequency.
One as the present embodiment is improved, the embodiment of the present invention provides another kind of liquid crystal display frame frequency control device, as shown in Figure 4, comprising: the first acquiring unit 41, second acquisition unit 42, the first computing unit 43, determining unit 44, copied cells 45, the first plug-in unit 46, the second computing unit 47, the second plug-in unit 48.
Wherein, determining unit 44 comprises: the first insert module 441, the second insert module 442; The second computing unit 47 comprises: search module 471, the first computing module 472.
The first acquiring unit 41, for obtaining the two field picture that forms image animation;
The first computing unit 43, for calculating the group number of different pixels on every two consecutive frame images, compares group number and the preset value of different pixels on described two consecutive frame images;
Determining unit 44, for group number and the default cut off value of different pixels on described two consecutive frame images are compared, determines the quantity of inserting compensated frame image between described two consecutive frame images;
Concrete, the first insert module 441 if be greater than described default cut off value for the group number of different pixels on described two consecutive frame images, is inserted at least three compensated frame images between described two consecutive frame images;
The second insert module 442 if be less than described default cut off value for the group number of different pixels on described two consecutive frame images, is inserted one or two compensated frame image between described two adjacent images.
Copied cells 45, if be less than preset value for the group number of different pixels on two consecutive frame images, copies any two field picture in described two consecutive frame images according to the quantity of described insertion compensated frame image;
The first plug-in unit 46, does not change the reproduction time interval of described two consecutive frame images, by all copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images;
The second computing unit 47, if be greater than described preset value for the group number of different pixels on two consecutive frame images, calculates the compensated frame image of two consecutive frame images of insertion of respective numbers according to the quantity of described insertion compensated frame image;
Concrete, search module 471, for searching on described two consecutive frame images for representing two pixels of same picture content, and obtain abscissa and the ordinate on the place two field picture of these two pixels;
The first computing module 472, for calculating abscissa and the ordinate of the content of each pixel on described respective numbers compensated frame image according to the quantity of described abscissa, ordinate and described insertion compensated frame image.
Concrete, on described compensated frame image, the abscissa of each pixel and ordinate computing formula are: X1=1/ (n+1) × M1+n/ (n+1) × M2, Y1=1/ (n+1) × N1+n/ (n+1) × N2; The 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 represents the total insertion picture number between adjacent two two field pictures, and M1, M2, N1 and N2 are respectively abscissa and the ordinate of two pixels of correspondence that represent same picture content in adjacent two two field pictures on two field picture.
The second plug-in unit 48, for inserting all compensated frame images that calculate between two consecutive frame images.
A kind of liquid crystal display frame frequency control device that the present embodiment provides, owing to determining compensation policy according to the group number of different pixels on two consecutive frame images, if two consecutive frame picture material difference are larger, calculate compensated frame for by way of compensation, if two consecutive frame picture material difference are less or indifference, copy any one in two consecutive frame images for frame by way of compensation, so when playing video animation, during from changing picture corresponding to two field picture to picture corresponding to another two field picture, the variation of image content is comparatively mild, and then there is the problem of shaking at interior two field picture picture when playing in the film source that can effectively reduce to comprise low field frequency.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium can read, as the floppy disk of computer, hard disk or CD etc., comprise that some instructions are in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (7)
1. a liquid crystal display frame frequency control method, is characterized in that, comprising:
Obtain the two field picture that forms image animation;
From every two consecutive frame images, identical position obtains respectively a pixel, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels;
Calculate the group number of different pixels on every two consecutive frame images, group number and the preset value of different pixels on described two consecutive frame images are compared;
If the group number of different pixels is less than preset value on two consecutive frame images, copy any two field picture in described two consecutive frame images; Do not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images;
If the group number of different pixels is greater than described preset value on two consecutive frame images, according to the pixel of two consecutive frame images, calculate the image content of compensated frame image, do not change the reproduction time interval of described two consecutive frame images, the compensated frame image calculating is inserted between two consecutive frame images;
Wherein, described copy described two consecutive frame images in before any two field picture, described method also comprises:
Group number and the default cut off value of different pixels on two consecutive frame images are compared, determine the quantity of inserting compensated frame image between described two consecutive frame images;
Describedly copy any two field picture in described two consecutive frame images and be: according to the quantity of described insertion compensated frame image, copy any two field picture in described two consecutive frame images;
Described group number and default cut off value by different pixels on described two consecutive frame images compares, and determines that the quantity of inserting compensated frame image between described two consecutive frame images comprises:
If the group number of different pixels is greater than described default cut off value on described two consecutive frame images, between described two consecutive frame images, insert at least three compensated frame images;
If the group number of different pixels is less than described default cut off value on described two consecutive frame images, between described two adjacent images, insert one or two compensated frame image.
2. liquid crystal display frame frequency control method according to claim 1, is characterized in that, described method also comprises:
If the group number of different pixels equals described preset value on two consecutive frame images, copy any two field picture in described two consecutive frame images; Do not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images; Or, according to the pixel of two consecutive frame images, calculate the image content of compensated frame image, the compensated frame image calculating is inserted between two consecutive frame images.
3. liquid crystal display frame frequency control method according to claim 1 and 2, is characterized in that, the image content that the described pixel according to two consecutive frame images is calculated compensated frame image comprises:
Search on described two consecutive frame images for representing two pixels of same picture content, and obtain abscissa and the ordinate on the place two field picture of these two pixels;
According to the quantity of described abscissa, ordinate and described insertion compensated frame image, calculate abscissa and the ordinate of each pixel on described compensated frame image.
4. liquid crystal display frame frequency control method according to claim 3; it is characterized in that; on described compensated frame image, the abscissa of each pixel and ordinate computing formula are: the first two field picture, X1=1/(n+1) × M1+n/(n+1) × M2, Y1=1/(n+1) × N1+n/(n+1) × N2; The 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 represents the total insertion picture number between adjacent two two field pictures, and M1, M2, N1 and N2 are respectively abscissa and the ordinate of two pixels of correspondence that represent same picture content in adjacent two two field pictures on two field picture.
5. a liquid crystal display frame frequency control device, is characterized in that, comprising:
The first acquiring unit, for obtaining the two field picture that forms image animation;
Second acquisition unit, obtains respectively a pixel for identical position from every two consecutive frame images, two pixels that get is compared, if these two pixel differences are designated as one group of different pixels;
The first computing unit, for calculating the group number of different pixels on every two consecutive frame images, compares group number and the preset value of different pixels on described two consecutive frame images;
Copied cells, if be less than preset value for the group number of different pixels on two consecutive frame images, copies any two field picture in described two consecutive frame images;
The first plug-in unit, does not change the reproduction time interval of described two consecutive frame images, by copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images;
The second computing unit, if be greater than described preset value for the group number of different pixels on two consecutive frame images, calculates the image content of compensated frame image according to the pixel of two consecutive frame images;
The second plug-in unit, for inserting the compensated frame image calculating between two consecutive frame images;
Determining unit, for group number and the default cut off value of different pixels on described two consecutive frame images are compared, determines the quantity of inserting compensated frame image between described two consecutive frame images;
Described copied cells, also for copying any two field picture of described two consecutive frame images according to the quantity of described insertion compensated frame image;
Described the first plug-in unit, also for by all copy the two field picture that obtains by way of compensation two field picture insert between described two consecutive frame images;
Described the second computing unit, also for calculating the compensated frame image of two consecutive frame images of insertion of respective numbers according to the quantity of described insertion compensated frame image;
Described the second plug-in unit, also for inserting all compensated frame images that calculate between two consecutive frame images;
Wherein, described determining unit comprises:
The first insert module if be greater than described default cut off value for the group number of different pixels on described two consecutive frame images, is inserted at least three compensated frame images between described two consecutive frame images;
The second insert module if be less than described default cut off value for the group number of different pixels on described two consecutive frame images, is inserted one or two compensated frame image between described two adjacent images.
6. liquid crystal display frame frequency control device according to claim 5, is characterized in that, described the second computing unit comprises:
Search module, for searching on described two consecutive frame images for representing two pixels of same picture content, and obtain abscissa and the ordinate on the place two field picture of these two pixels;
The first computing module, for calculating abscissa and the ordinate of each pixel on described respective numbers compensated frame image according to the quantity of described abscissa, ordinate and described insertion compensated frame image.
7. liquid crystal display frame frequency control device according to claim 6; it is characterized in that; on described compensated frame image, the abscissa of each pixel and ordinate computing formula are: X1=1/(n+1) × M1+n/(n+1) × M2, Y1=1/(n+1) × N1+n/(n+1) × N2; The 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 represents the total insertion picture number between adjacent two two field pictures, and M1, M2, N1 and N2 are respectively abscissa and the ordinate of two pixels of correspondence that represent same picture content in adjacent two two field pictures on two field picture.
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| CN105578102A (en) * | 2015-12-20 | 2016-05-11 | 苏州长风航空电子有限公司 | Video frame frequency conversion method |
| CN105448264B (en) * | 2016-01-04 | 2018-09-18 | 京东方科技集团股份有限公司 | The driving method of GOA circuits, device, sequence controller, display equipment |
| CN106652002A (en) * | 2016-09-20 | 2017-05-10 | 努比亚技术有限公司 | Method and system for generating trajectory animation image |
| CN109584796B (en) * | 2019-01-30 | 2020-07-10 | 昆山国显光电有限公司 | Display driving method and device of display panel and display device |
| CN110136645B (en) * | 2019-05-15 | 2021-04-30 | 昆山国显光电有限公司 | Display driving method and device of display panel and display device |
| CN111447488B (en) * | 2020-04-01 | 2022-08-26 | 青岛海信传媒网络技术有限公司 | MEMC control method and display device |
| CN112822511A (en) * | 2020-12-31 | 2021-05-18 | 深圳康佳电子科技有限公司 | Video processing method, system, intelligent terminal and computer readable storage medium |
| CN114598876A (en) * | 2022-03-03 | 2022-06-07 | 深圳创维－Rgb电子有限公司 | Motion compensation method and device for dynamic image, terminal device and storage medium |
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