CN103177699A - Data processing method for field sequence liquid crystal display device - Google Patents
Data processing method for field sequence liquid crystal display device Download PDFInfo
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- CN103177699A CN103177699A CN2011104314729A CN201110431472A CN103177699A CN 103177699 A CN103177699 A CN 103177699A CN 2011104314729 A CN2011104314729 A CN 2011104314729A CN 201110431472 A CN201110431472 A CN 201110431472A CN 103177699 A CN103177699 A CN 103177699A
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Abstract
An embodiment of the invention discloses a data processing method for a field sequence liquid crystal display device. The data processing method is used for converting source field sequence data into target field sequence data and comprises the steps of confirming color of target sub-frames in the target field sequence data; confirming two or more source sub-frames which are in the source field sequence data and are identical to the target sub-frames in color and adjacent to the target sub-frames in time; and processing image information of the two or more source sub-frames to enable the image information of the target sub-frames to include the image information of two or more source sub-frames, wherein the frame refresh frequency of the target field sequence data is lower than that of the source field sequence data. By adopting the data processing method, field sequence frames with high refresh frequency can be displayed on the premise that the refresh frequency is low.
Description
Technical field
The present invention relates to the liquid crystal indicator technical field, relate in particular to the data processing method in a kind of sequence liquid crystal display device.
Background technology
Traditional liquid crystal indicator (Liquid Crystal Display, LCD) is based on the spatial color mixing principle and shows on display mode, generally be provided with colored filter on it.And novel field sequence LCD is based on time color mixture principle and shows on display mode, that is: along the primary colors red (Red of time shaft with light, R), green (Green, G), blue (Blue, B) separate, As time goes on switch rapidly the pixel of each primary colors, and then demonstrate coloured image on screen.
In sequence LCD on the scene, watch continuous image frame in order to make human eye, on LCDs, shown image frame should reach the refreshing frequency of per second 60 frames, if expect more clear, more smooth image frame, refreshing frequency should be higher.But, the impossible infinite height of refreshing frequency, this is because the liquid crystal molecule on liquid crystal panel has certain response time.When image frame had high refreshing frequency, delaying of liquid crystal molecule response time not only tied up scintillation time backlight, reduced the image display brightness, and easily made image mixed color phenomenon occur.
Summary of the invention
In view of this, the embodiment of the present invention provides the data processing method in a kind of sequence liquid crystal display device, can show the field sequence picture of high refreshing frequency under the prerequisite of low refreshing frequency.
For addressing the above problem, the embodiment of the present invention provides following technical scheme:
Data processing method in a kind of sequence liquid crystal display device is used for converting field, source sequence data to the target field sequence data, and the method comprises:
Determine the color of the target-subframe in the target field sequence data;
True identical with described target-subframe color in the fixed source field sequence data and the most adjacent source subframe more than 2 or 2 in time;
Image information to described source subframe more than 2 or 2 is processed, and makes the image information of described target-subframe comprise the image information of described source subframe more than 2 or 2;
Wherein, the frame refreshing frequency of described target field sequence data is lower than the frame refreshing frequency of field, described source sequence data.
Preferably, in said method, the image information of described source subframe more than 2 or 2 is processed, is made the image information of described target-subframe comprise the image information of described source subframe more than 2 or 2, specifically comprise:
GTG signal to described source subframe more than 2 or 2 calculates, and makes the GTG signal of described target-subframe comprise the GTG signal of described source subframe more than 2 or 2.
Preferably, in said method, the frame refreshing frequency of described target field sequence data is 60Hz, and the frame refreshing frequency of field, described source sequence data is 180Hz.
Preferably, in said method, all has RGB sequence backlight in described target field sequence data and field, source sequence data.
Preferably, in said method, the GTG signal of described target-subframe comprises in the sequence data of field, source the GTG signal with the described target-subframe source subframe that the most adjacent 3 colors are identical in time.
Preferably, in said method, the GTG signal B of described target-subframe satisfies relational expression: B=C1*b1+C2*b2+C3*b3; Wherein, b1, b2 and b3 are respectively in the sequence data of field, described source and the described target-subframe GTG signal of 3 the most adjacent source subframes in time, and C1, C2, C3 are weight parameter, and C1+C2+C3=1.
Preferably, in said method, the frame refreshing frequency of described target field sequence data is 90Hz, and the frame refreshing frequency of field, described source sequence data is 180Hz.
Preferably, in said method, has RGB sequence backlight in the sequence data of field, described source; Has RGB-BGR sequence backlight in described target field sequence data.
Preferably, in said method, the GTG signal of described target-subframe comprises in the sequence data of field, source the GTG signal with the described target-subframe source subframe that the most adjacent 4 colors are identical in time.
Preferably, in said method, the GTG signal B of described target-subframe satisfies relational expression: B=C1*b1+C2*b2+C3*b3+C4*b4; Wherein, b1, b2, b3 and b4 are respectively in the sequence data of field, described source and the described target-subframe GTG signal of 4 the most adjacent source subframes in time, and C1, C2, C3 and C4 are weight parameter, and C1+C2+C3+C4=1.
can find out from technique scheme, data processing method in the field sequence liquid crystal display device that the embodiment of the present invention provides, at first determine the color of the target-subframe in the target field sequence data, then find out identical with described target-subframe color in the sequence data of field, source and the most adjacent source subframe more than 2 or 2 in time, at last the image information of described source subframe more than 2 or 2 is processed, make the image information of described target-subframe comprise the image information of described source subframe more than 2 or 2, so, target-subframe just becomes one " dynamic frame ", this " dynamic frame " can dynamically participate in the structure of 2 or 2 above whole frame in the target field sequence data, therefore, in the target field sequence data, the actual duration of arbitrary subframe is all than the longer duration of the subframe in the sequence data of field, source, thereby can show the field sequence picture of high refreshing frequency under the prerequisite of low refreshing frequency, greatly alleviated a sequence show in to the harsh requirement of liquid crystal molecule response speed, avoided because of the former of liquid crystal molecule response speed thereby the colour mixture that causes, colour contamination, brightness is partially dark, the problems such as chromatic flicker.In addition, by the method compressible image information data also, dwindle transmission bandwidth.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of available technology adopting VP technique construction " dynamic pixel ";
The schematic flow sheet of the data processing method in a kind of the sequence liquid crystal display device that Fig. 2 provides for the embodiment of the present invention;
A kind of schematic diagram that adopts VP technique construction " dynamic frame " that Fig. 3 provides for the embodiment of the present invention;
The another kind that Fig. 4 provides for the embodiment of the present invention adopts the schematic diagram of VP technique construction " dynamic frame ".
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 belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
A lot of details have been set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can be in the situation that do similar popularization without prejudice to intension of the present invention, so the present invention is not subjected to the restriction of following public specific embodiment.
Just as described in the background section, liquid crystal molecule on liquid crystal panel has certain response time, when the refreshing frequency of image frame shown on display is too high, delaying of liquid crystal molecule response time will tie up scintillation time backlight this moment, and then reduction image display brightness, even can affect the display effect of image, make image the problems such as colour mixture, colour contamination occur.
Based on this, the invention provides the data processing method in a kind of sequence liquid crystal display device, to show the field sequence picture of high refreshing frequency in the field sequence system with low refreshing frequency.
Image rendering (GraphicsRendering) technology that method set forth in the present invention is based in the colour element system forms.The image rendering technology can be understood as a mapping from the source image information to the target image information.The primary image of this mapping is the cover source image information based on a source pixel system; This image of mapping (result that namely should shine upon) is the cover target image information based on an object pixel system.Here, source pixel system and object pixel system can be same systems, also can be different.Different rendering intents can be in order to adapt to different pixel system conversion, can be also in order to realize certain special display effect in same pixel system, so its mapping mode to information (being concrete mapping) is also different.
In field of liquid crystal display, a kind of well-known pentile algorithm is arranged, can be designated as f
penIts effect is that the image with RGB three color pixel systems is transformed in the 5 sub-pixel systems of RR-GG-B.Wherein, RGB three color pixel systems are the source pixel system, and the RR-GG-B system is the object pixel system.Source image information acts on the original visual effect that the source pixel system produces, act on target image information the new visual effect that the object pixel system produces, can be identical or identical as far as possible, it can be also difference for certain purpose, such as brightness is higher, NTSC is larger, and the image corner is rounder and more smooth etc.
With f
penSimilarly, the field of liquid crystal display widely well-known RGB operation that turns RGBW also can be defined as mapping relations, can be designated as fRGBW.Its source pixel system is RGB three sub-pixels systems, and the object pixel system is RGBW four sub-pixels systems.It is all problems of broad research of an industrial community and academia that RGB turns RGBW, there be different pursuing a goal in different research institutions for producing W GTG value, some pursuit high brightness, some pursuits do not affect excitation, even so identical source image information also may draw the W GTG value of different target image information.
The image rendering technology that also has a kind of being referred to as " dynamic pixel " or " virtual pixel " in the flat pannel display field, referred to as VP (Virtual Pixel) technology, corresponding mapping is designated as fVP.The source pixel system of fVP can be any pixel system, and the object pixel system can be that a resolution is source pixel system 1/4, the equal-sized pixel system of a complete pixel of each sub-pixel size and source pixel system.The color of each target sub-pixel is wherein a kind of or this a kind of color that is mixed into arbitrary proportion of R, G, B, such as white W, and perhaps yellow Y.The GTG value of any one target sub-pixel need to embody " dynamic pixel " this concept, i.e. this target sub-pixel, need simultaneously upper left with it three sub-pixels to consist of a complete pixel, consist of a complete pixel, consist of a complete pixel, consist of a complete pixel with bottom-right three sub-pixels with top-right three sub-pixels with three sub-pixels of lower left, in dynamically participating in the structure of these complete pixel and showing.
For instance, as shown in Figure 1, the source pixel system of VP technology is traditional RGB three sub-pixels systems, and the object pixel system is traditional RGBW four sub-pixels systems; Wherein, the size of the object pixel system sub-pixel equals the size of a pixel of source pixel system.After the color of certain target sub-pixel was determined, the sub-pixel that participates in its GTG calculating in the source pixel system had just been determined.For example, after the R sub-pixel in the object pixel system is determined, choose red gray level information r in the pixel of the same position of source pixel system, get its up and down 4 neighbors be red gray level information r equally
11, r
12, r
13, r
14, get the red gray level information r of its upper left, lower-left, upper right, 4 the oblique neighbors in bottom right
21, r
22, r
23, r
24The GTG value R ' of the R sub-pixel in the object pixel system can calculate according to following formula: R '=A*r+B* (r
11+ r
12+ r
13+ r
14)+C* (r
21+ r
22+ r
23+ r
24), wherein A, B, C are weight parameter, and A+4B+4C=1 is arranged.So, the red sub-pixel gray level information at same position place in the gray level information band active pixel system of this R sub-pixel in the object pixel system, also with the red sub-pixel gray level information of the red sub-pixel gray level information of 4 neighbors in upper and lower, left and right and upper left, lower-left, upper right, 4 the oblique neighbors in bottom right, so the R sub-pixel in this object pixel system can dynamically participate in the structure of a plurality of complete pixel.For other color sub-pixels in the object pixel system, be also in like manner.Some degree of accuracy is required lower occasion, can make C=0, at this moment the R sub-pixel just develops into the structure of the dynamic pixel that participates in the up, down, left and right four directions positions.
Image rendering technology in above-mentioned colour element system is spatially source image information is carried out conversion, thus the target image information that obtains wanting.Especially adopt the VP technology can build " dynamic pixel ", thus can be in the lower pixel system of true resolution display of high resolution images.Inspiration based on these technology, the inventor finds: above-mentioned corresponding image rendering technology is carried out conversion to source image information in time, can solve in prior art because the liquid crystal molecule response speed makes image and the problems such as colour mixture, colour contamination, brightness are partially dark, chromatic flicker occur, the core concept of the data processing method in Here it is provided by the present invention sequence liquid crystal display device.
The below describes provided by the present invention the data processing method in sequence liquid crystal display device in detail.
With reference to figure 2, the schematic flow sheet of the data processing method in a kind of the sequence liquid crystal display device that Fig. 2 provides for the embodiment of the present invention, the method is used for converting field, source sequence data to the target field sequence data, specifically comprises the steps:
Step S1: the color of determining the target-subframe in the target field sequence data.
In sequence liquid crystal display device on the scene, shown piece image is called a frame, comprise again a plurality of subframes in one frame, order shows a plurality of subframes in a described frame along with time shaft, therefore, a sequence system comprises two key elements of sequence backlight of frame refreshing frequency and corresponding different subframe colors.
Described target field sequence data is based on target field sequence system.Described target field sequence system for example can comprise frame refreshing frequency and the RGB sequence backlight of 60Hz.
At any one time, at first determine the color of the target-subframe in the target field sequence data, the corresponding target image information of described target field sequence data.
Step S2: true identical with described target-subframe color in the fixed source field sequence data and the most adjacent source subframe more than 2 or 2 in time.
Field, described source sequence data is based on field, source sequence system.Field, described source sequence system for example can comprise frame refreshing frequency and the RGB sequence backlight of 180Hz.Because the objective of the invention is to solve because the liquid crystal molecule response speed makes image and the problems such as colour mixture, colour contamination, brightness are partially dark, chromatic flicker occur, and by showing that under low refreshing frequency the image of high refreshing frequency can reach purpose of the present invention, therefore, in the embodiment of the present invention frame refreshing frequency of target field sequence system lower than the frame refreshing frequency of field, source sequence system.The corresponding source image information of field, described source sequence data.
After the color of target-subframe in the target field sequence data is determined, seek the identical and the most adjacent source subframe more than 2 or 2 in time of color with described target-subframe in this step in the sequence data of field, source.Described " the most adjacent source subframe more than 2 or 2 in time " refers to and the immediate front source subframe more than 2 or 2 of current time.That is to say, if take absolute value after moment of all source subframes is deducted current time, from small to large the source subframe of correspondence is sorted according to this absolute value, get the source subframe more than 2 or 2 that comes the front and be " the most adjacent source subframe more than 2 or 2 in time ".For the situation of 2 source subframes, refer to the source subframe with the current time direct neighbor; For the situation of the source subframe more than 2, except comprising the source subframe with the current time direct neighbor, may also comprise the source subframe with current time indirect neighbor.
Step S3: the image information to described source subframe more than 2 or 2 is processed, and makes the image information of described target-subframe comprise the image information of described source subframe more than 2 or 2.
Under be to have set up a mapping relationship f in fact in this step effect of ', in this mapping relationship f ', the source image information in the sequence system of field, source can be converted into the target image information in target field sequence system.
The f ' here is also a kind of rendering intent, because it also has the key elements such as source image information, target image information, mapping mode.Only its source image information and target image information can be embodied in respectively on field, source sequence system and target field sequence system, so for aforementioned colour element system in image rendering technology f distinguish to some extent, be designated as f ', described f ' is not in order to express the intention of " derived function of f " this class.F ' also can add various subscripts as f, to distinguish different mapping modes.
In this step by the image information of described source subframe more than 2 or 2 is processed, make the image information of described target-subframe comprise the image information of determined described source subframe more than 2 or 2 in step S2, therefore, this target-subframe can dynamically participate in the structure of 2 or 2 above whole frame in the target field sequence data, forms " dynamic frame ".Due to actual duration of arbitrary subframe in the target field sequence data all than the longer duration of the subframe in the sequence data of field, source, thereby can show the field sequence picture of high refreshing frequency under the prerequisite of low refreshing frequency, greatly alleviated a sequence show in to the harsh requirement of liquid crystal molecule response speed, avoided the problems such as, chromatic flicker partially dark because of the former of liquid crystal molecule response speed thereby the colour mixture that causes, colour contamination, brightness.And, adopt also compressible image information data of the method, dwindle transmission bandwidth.
VP technique construction " dynamic pixel " is corresponding with adopting, and the below is to adopt VP technique construction " dynamic frame " as example detailed description the solution of the present invention.
The dot structure that field, source sequence system is used must be the same with the dot structure that target field sequence system is used.At any one time, after the color of some subframes at target image information place is determined, participate in f '
vpThe color of calculating is also just determined.With this this kind color sub-frame of the place frame of field, source sequence system constantly, and the GTG signal of this kind color sub-frame of front and back consecutive frame is weighted on average, the weighted mean GTG value of resulting this color is as the GTG signal of this subframe in this moment target field sequence system.
So, the subframe that target field sequence system is carved has at this moment just comprised the present frame of field, source sequence system, and the information of this kind color of consecutive frame before and after it.This subframe in target field sequence system before can dynamically participating in it, current, the structure of three whole frame afterwards, becomes " dynamic frame ".
Can find under contrast, involved all key elements in this method, such as field, source sequence system, target field sequence system, image information, dynamic frame, weighted mean value, the particular color at current place etc. is all to carry out the involved key element of VP conversion in different pixel systems corresponding one by one, all concepts that produce in the space, all be embodied on the time now before.
Describe the building process of " dynamic frame " in a sequence system in detail below in conjunction with accompanying drawing.
Embodiment one
With reference to figure 3, Fig. 3 midfield sequence system 1, field, corresponding source sequence system, its frame refreshing frequency is 180Hz, and has RGB sequence backlight; Field sequence system 2, corresponding target field sequence system, its frame refreshing frequency is 60Hz, that is: the refreshing frequency of target image information only has 1/3 of source image information refreshing frequency, also has RGB sequence backlight in a sequence system 2.Transform mode is f '
vp1, that is: at f '
vp1Effect under, make image information in a sequence system 1 change into image information in a sequence system 2.
if certain the blue subframe 1201 in Fig. 3 in selected field sequence system 2 is as the target-subframe of current calculating, for the current time in field sequence system 1, the blue subframe 1102 of its place frame, the blue subframe 1101 of its former frame, thereafter the blue subframe 1103 of a frame all is selected as the source subframe of the GTG signal that participates in calculating target-subframe 1201, because the blue subframe 1101 in sequence system 1 (field, a source sequence system), blue subframe 1102, blue subframe 1103 is identical with blue subframe 1201 colors in field sequence system 2 (target field sequence system) and the most adjacent 3 subframes in time.If the GTG value of target-subframe 1201 is B, the GTG value of source subframe 1101 is b1, and the GTG value of source subframe 1102 is b2, the GTG value of source subframe 1103 is b3, and the computing formula according to VP has B=C1*b1+C2*b2+C3*b3, wherein C1, C2, C3 are weight parameter, and C1+C2+C3=1.
Thus, the image information of target-subframe 1201 has just contained the image information of source subframe 1101, source subframe 1102 and source subframe 1103 simultaneously, so can participate in the structure of the whole frame 1301 in target field sequence system, in like manner, also can participate in the structure of whole frame 1302 and whole frame 1303.In fact, source subframe 1101 was in the time period of the whole frame 1301 in target field sequence system, source subframe 1102 was in the time period of the whole frame 1302 in target field sequence system, source subframe 1103 was in the time period of the whole frame 1303 in target field sequence system, so, the actual displayed that the information exchange of source subframe 1101 is crossed target-subframe 1201 is embodied on whole frame 1301 in target field sequence system, a kind of rational setting just.In like manner, the information of source subframe 1102 and source subframe 1103 can be embodied in respectively on whole frame 1302 and whole frame 1303 by the actual displayed of target-subframe 1201 too.
The above is described as an example of blue subframe example, and is same as described above for the concrete disposal route of red sub-frame and green sub-frame, repeats no more.
As seen from the above description, adopt the frame refreshing frequency of 60Hz in target field sequence system, the image frame that can show 180Hz frame refreshing frequency in the sequence system of field, source, when therefore, adopting method provided by the present invention to solve high refreshing frequency because the liquid crystal molecule response speed makes image, the problems such as colour mixture, colour contamination, brightness are partially dark, chromatic flicker appear.
Embodiment two
With embodiment one difference be, the frame refreshing frequency in the present embodiment in target field sequence system is 90Hz, and target field sequence system has RGB-BGR sequence backlight, and field, the source sequence system in the present embodiment is identical with field, source sequence system in embodiment one.Because the target field sequence system in the present embodiment is different from target field sequence system in embodiment one, therefore transform mode used is also different, transform mode in the present embodiment is f ' vp2, that is: under the effect of f ' vp2, make image information in the sequence system of field, source change into image information in target field sequence system.
With reference to figure 4, Fig. 4 midfield sequence system 1, field, corresponding source sequence system, its frame refreshing frequency is 180Hz, and has RGB sequence backlight; Field sequence system 2, corresponding target field sequence system, its frame refreshing frequency is 90Hz, that is: the refreshing frequency of target image information only has 1/2 of source image information refreshing frequency, has RGB-BGR sequence backlight in a sequence system 2.Transform mode is f '
vp2, that is: at f '
vp2Effect under, make image information in a sequence system 1 change into image information in a sequence system 2.
If in Fig. 4 in selected sequence system 2 certain blue subframe 2201 constantly as the target-subframe of current calculating, establish it and should show that the GTG value is B, choose the most adjacent with this moment 4 blue subframes 2101,2102,2103 and 2104 in sequence system 1 on the scene.If the GTG value of these 4 subframes is respectively b1, b2, b3 and b4.According to the computing formula of VP, B=C1*b1+C2*b2+C3*b3+C4*b4 is arranged.Wherein C1, C2, C3 and C4 are weight parameter, and C1+C2+C3+C4=1.
Thus, the image information of target-subframe 2201 has just contained source subframe 2101,2102,2103 and 2104 image information simultaneously, so can participate in the structure of the whole frame 2301 in target field sequence system, in like manner, also can participate in whole frame 2302,2303,2304,2305 and 2306 structure.
In like manner, identical with foregoing description to the operation of red sub-frame and green sub-frame, repeat no more.
By above-mentioned two embodiment more as can be known: due to the difference of target field sequence system, therefore the transform mode that adopts is also different, and the sequence period backlight in embodiment two in target field sequence system is longer, and the range of choice of source image information is wider, therefore passes through f '
vp2Transform mode after final shown dynamic menu will inevitably be fuzzyyer.But be RGB-BGR sequence backlight due to what adopt in embodiment two, can effectively eliminate look broken phenomenon, so this be also a kind of disposal route that is of practical significance.Here enumerating this example is intended to illustrate based on the different map function methods under the different target field sequence system of VP conversion theory.For f '
vp2Transform mode, its frame refreshing frequency, range of choice, weight parameter and sequence backlight need rationally to arrange to reach optimum visual effect.
In any case but, when the method is used for showing tableaux, can there be any dynamic fuzzy.In fact, showing the f that uses between the different pixels system for non-sequence
vpDuring conversion, when source image information was the color lump of a sheet of same color, color lump is inner fuzzy on any space can not occur through the image information after conversion yet.This is again f
vpAll concept of space and f '
vpAll concept of time can show one to one.
The embodiment of the present invention is at f '
vpConversion in, in target field sequence system this has just greatly alleviated a sequence and has shown harsh requirement for liquid crystal response speed all than the longer duration of the subframe in the sequence system of field, source the actual duration of arbitrary subframe.Do not having at present liquid crystal can perfectly satisfy response, especially low temperature fast fast during the requiring of response, the problem that this method can solve significantly that a colour mixture, colour contamination, the brightness of a sequence in the middle of showing is partially dark, chromatic flicker etc. causes due to liquid crystal speed.In addition, adopt the compressible image information data of the method, dwindle transmission bandwidth.
Two embodiment of the present invention are with the transform mode f on the space
vpAs adopting in time transform mode f ' in reference and then sequence liquid crystal display device on the scene
vpSource image data is changed.In fact, the front stated, there is numerous algorithm f in the flat pannel display field, and according to this thought of the present invention, all algorithm f that Pixel Information is processed can create corresponding algorithm f ' in sequence liquid crystal display device on the scene in theory.So as concluding, the thought of disclosed " will be transformed into the algorithm that the image information of different pixels system carries out processing on the space image information of different sequence systems is carried out upper processing of time " can be applicable to whole F, and described F is the set of f.
In summary, data processing method in the sequence liquid crystal display device of field provided by the present invention, by corresponding conversion regime, convert field, source sequence data to the target field sequence data, and then can show the field sequence picture of high refreshing frequency in the lower field sequence system of actual refreshing frequency, greatly alleviated a sequence show in to the harsh requirement of liquid crystal molecule response speed, avoided the problems such as, chromatic flicker partially dark because of the former of liquid crystal molecule response speed thereby the colour mixture that causes, colour contamination, brightness.In addition, by the method compressible image information data also, dwindle transmission bandwidth.
In this instructions, various piece adopts the mode of going forward one by one to describe, and what each part stressed is and the difference of other parts that between various piece, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the data processing method in a field sequence liquid crystal display device, be used for converting field, source sequence data to the target field sequence data, it is characterized in that, comprising:
Determine the color of the target-subframe in the target field sequence data;
True identical with described target-subframe color in the fixed source field sequence data and the most adjacent source subframe more than 2 or 2 in time;
Image information to described source subframe more than 2 or 2 is processed, and makes the image information of described target-subframe comprise the image information of described source subframe more than 2 or 2;
Wherein, the frame refreshing frequency of described target field sequence data is lower than the frame refreshing frequency of field, described source sequence data.
2. method according to claim 1, is characterized in that, the image information of described source subframe more than 2 or 2 is processed, and makes the image information of described target-subframe comprise the image information of described source subframe more than 2 or 2, specifically comprises:
GTG signal to described source subframe more than 2 or 2 calculates, and makes the GTG signal of described target-subframe comprise the GTG signal of described source subframe more than 2 or 2.
3. method according to claim 2, is characterized in that, the frame refreshing frequency of described target field sequence data is 60Hz, and the frame refreshing frequency of field, described source sequence data is 180Hz.
4. method according to claim 3, is characterized in that, all has RGB sequence backlight in described target field sequence data and field, source sequence data.
5. method according to claim 4, is characterized in that, the GTG signal of described target-subframe comprises in the sequence data of field, source the GTG signal with the described target-subframe source subframe that the most adjacent 3 colors are identical in time.
6. method according to claim 5, is characterized in that, the GTG signal B of described target-subframe satisfies relational expression: B=C1*b1+C2*b2+C3*b3; Wherein, b1, b2 and b3 are respectively in the sequence data of field, described source and the described target-subframe GTG signal of 3 the most adjacent source subframes in time, and C1, C2, C3 are weight parameter, and C1+C2+C3=1.
7. method according to claim 2, is characterized in that, the frame refreshing frequency of described target field sequence data is 90Hz, and the frame refreshing frequency of field, described source sequence data is 180Hz.
8. method according to claim 7, is characterized in that, has RGB sequence backlight in the sequence data of field, described source; Has RGB-BGR sequence backlight in described target field sequence data.
9. method according to claim 8, is characterized in that, the GTG signal of described target-subframe comprises in the sequence data of field, source the GTG signal with the described target-subframe source subframe that the most adjacent 4 colors are identical in time.
10. method according to claim 9, is characterized in that, the GTG signal B of described target-subframe satisfies relational expression: B=C1*b1+C2*b2+C3*b3+C4*b4; Wherein, b1, b2, b3 and b4 are respectively in the sequence data of field, described source and the described target-subframe GTG signal of 4 the most adjacent source subframes in time, and C1, C2, C3 and C4 are weight parameter, and C1+C2+C3+C4=1.
Priority Applications (1)
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