CN101727815B - Local black insertion method for dynamic image and display device - Google Patents
Local black insertion method for dynamic image and display device Download PDFInfo
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- CN101727815B CN101727815B CN2009103121261A CN200910312126A CN101727815B CN 101727815 B CN101727815 B CN 101727815B CN 2009103121261 A CN2009103121261 A CN 2009103121261A CN 200910312126 A CN200910312126 A CN 200910312126A CN 101727815 B CN101727815 B CN 101727815B
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Abstract
The invention relates to an image processing technology and a display device. The black insertion (or average-hue picture insertion) is carried out on the part with dynamic expression in a continuous picture signal to remove a smearing phenomenon of the part, and the part with static expression in the picture maintains the original image output to solve the problem of flicker generated by the black insertion on the static part, wherein aiming at the part with the dynamic expression in the picture, a pixel difference of a front picture and a rear picture of the inserted picture can be judged by comparing different threshold values, and the black insertion is carried out on a block with larger difference in the inserted picture; a block with smaller difference maintains original pixel output; and the over-driven voltage is additionally applied to the block of which the difference is between the two threshold values to precharge a liquid crystal so that the dynamic and static parts in the picture has expression with high quality.
Description
Technical field
The present invention relates to a kind of image processing technique and display device, refer to especially a kind ofly carry out the locality black plug or cross the local black insertion method drive and relevant display device according to vicissitudinous part in the image of front and back.
Background technology
(black insertion BI) uses generally that (liquidcrystal display is LCD) with the display quality of the dynamic image that improves display panel at flat-panel display devices such as LCD to black insertion technology.It is to be utilized between continuous dynamic image and the image; Insert black picture,, further improve animation smear phenomenon (the moving picture response timing that display panel often has in dynamic image to eliminate the integrating effect of human eye to image; MPRT), promote the animation quality.At present black insertion technology has two major types haply: block property black plug (black data insertion, BDI) and comprehensive black plug (black frame insertion, BFI).
Please refer to Fig. 1, Fig. 1 applies to reduce the synoptic diagram of the black insertion technology of dynamic image smear phenomenon for convention, and wherein A partly is illustrated in the continuous pictures F of dynamic image among Fig. 1
1In carry out block property black plug (BDI), that is at each picture F
1Add the local black insertion block I of axial top offset in time respectively
1, B partly is illustrated in the continuous pictures F of dynamic image among Fig. 1
2In carry out comprehensive black plug (BFI), that is at each picture F
2Between insert a complete black picture I respectively
2Wherein the BFI black insertion technology is owing to be to insert the black picture of view picture, and is therefore good for the effect of the smear phenomenon of eliminating dynamic image, if but run into static image, then cause the phenomenon of image flicker easily.And relatively, the relative BFI black insertion technology of block property black plug effect of BDI black insertion technology causes the influence of flicker less to static image, but also comes well not as BFI for the effect of eliminating the dynamic image smear.Though the algorithm of BDI black insertion technology is complicated on the practice, is main flow with the BDI black insertion technology still on the market at present.No matter be BDI or BFI, all be in order to eliminate the animation smear, to reduce MPRT, to promote the quality of dynamic image.
Yet; The situation that whole image moves in film or animation; In the general dynamic image because smear phenomenon that mobile article caused is a phenomenon local in the whole image; No matter be BDI or BFI therefore, all can't can reduce the influence that static image is caused flicker again in the smear that effectively reduces dynamic image simultaneously.Please refer to Fig. 2 and Fig. 3, Fig. 2 is a wherein picture F of continuous pictures in the common computer image
3, wherein include static white clouds 31, the sun 32, and high mountain 33, the woods 34 of dynamically moving.Since BDI or BFI all " make no exception " to carrying out part or comprehensive black plug in the continuous pictures; Therefore situation as shown in Figure 3 takes place in regular meeting the time; When the BDI/BFI black plug occurs in A 34 last times of the woods partly among Fig. 3; Because the woods 34 are dynamic image (letting human eye visually produce the sensation of smear), so BDI/BFI can effectively reduce the mobile smear phenomenon that is caused of the woods 34 (comprising high mountain 33); Yet when the BDI/BFI black plug occurs in B 31 last times of white clouds partly among Fig. 3, because white clouds 31 belong to static image comparatively speaking, so the BDI/BFI black plug causes the phenomenon of white clouds 31 (comprising the sun 32) meeting generation flicker, the quality of reduction image output on the contrary.
Summary of the invention
Therefore, the variation of image before and after the present invention can judge in there being image to change the position of difference, is carried out the black plug of locality or is crossed driving, when carrying out the smear elimination to dynamic image, reduces the flicker problem that the static image black plug is caused simultaneously.
The present invention provides a kind of local black insertion method of dynamic image; Include the following step: read one first picture and one second picture from a signal source and be stored in a storage element, this first picture and this second picture are made up of a plurality of first picture elements and a plurality of second picture element respectively; The difference of each corresponding first picture element of this first picture and this second picture and second picture element relatively; According to the difference of this first picture and each corresponding first picture element of this second picture and second picture element, corresponding the 3rd picture element in the insertion picture is changed to one the 4th picture element; And in a display unit, show this first picture, this insertion picture and this second picture in regular turn.The picture signal that produces in regular turn with a first frequency for this signal source of this first picture and this second picture wherein.
The present invention provides a kind of display device that dynamic image carries out local black insertion that is directed against in addition, and this display device includes a signal source, a storage element, a control module and a display unit.This signal source is used for producing a plurality of picture signals with a first frequency; These a plurality of picture signals comprise one first picture and one second picture at least; The picture signal that this first picture and this second picture produce for this signal source in regular turn, this first picture and this second picture are made up of a plurality of first picture elements and a plurality of second picture element respectively.This control module is electrically connected on this signal source and this storage element; Use from this signal source and read this first picture and this second picture; And be stored in this storage element; And relatively and according to the difference of this first picture and each corresponding first picture element of this second picture and second picture element, insert picture to produce one.This display unit is electrically connected on this control module, is used for showing in regular turn this first picture, this insertion picture and this second picture.
Description of drawings
Fig. 1 applies to reduce the synoptic diagram of the black insertion technology of dynamic image smear phenomenon for convention.
Fig. 2 is the wherein synoptic diagram of a picture of continuous pictures in the computer image.
Fig. 3 carries out the synoptic diagram of black plug demonstration to the picture of Fig. 2 for the utilization known techniques.
Fig. 4 carries out the synoptic diagram of black plug demonstration for using local black insertion technology of the present invention to the picture of Fig. 2.
Fig. 5 is for carrying out the system architecture diagram of display device first embodiment of local black insertion to dynamic image.
Fig. 6 is the schematic flow sheet of local black insertion method first embodiment that the present invention disclosed.
Fig. 7 is that two continuous pictures are through producing the synoptic diagram of black plug picture behind the local black insertion method of Fig. 6.
Fig. 8 is for carrying out the system architecture diagram of display device second embodiment of local black insertion to dynamic image.
Fig. 9 is the schematic flow sheet of local black insertion method second embodiment that the present invention disclosed.
Figure 10 is that two continuous pictures are through producing the synoptic diagram of black plug picture behind the local black insertion method of Fig. 9.
Figure 11 is that two continuous pictures are through producing the synoptic diagram of average black plug picture behind the local black insertion method of Fig. 9.
[primary clustering symbol description]
10,20 display device, 11,21 control modules
12,22 controllers 13,23 insert the picture generator
14,24 storage elements, 15,25 display units
16,26 signal sources, 27 comparers
28 cross crystal drive circuit 31 white clouds
32 sun, 33 high mountains
34 woods
61～64,81～87,811,812 blocks
100,200 local black insertion methods, 102～114,202～214 steps
I
1Black plug block I
2～I
4, I
6～I
8The black plug picture
F
1～F
9Picture
Embodiment
The present invention utilizes locality black plug (partial black insertion; PBI) mode to the part that dynamic performance is arranged in the picture, is carried out the black plug picture of an average tone (or insert); To eliminate the smear phenomenon of this part; And the part of static performance in the picture is then kept former image output, with the flicker problem of avoiding the static part black plug is produced.The effect of the present invention on image is as shown in Figure 4, at continuous picture F
3~ F
5In, white clouds 31 belong to static image, and the woods 34 then are dynamic image, are therefore inserting picture I
3In, only to picture F
3And picture F
4In the woods 34 of moving carry out black plug, its result is as inserting picture I
3Shown in, picture F
4And picture F
5Between insertion picture I
4Also together, as for inserting picture I
3, I
4In other zone (be picture F
3～F
5Middle static image part) then keeping its last picture respectively (is picture F
3And picture F
4) data, to avoid producing the problem of flicker.
In other words, local black insertion (PBI) method that the present invention discloses promptly in two continuous pictures, is inserted a new insertion picture, and the purpose of this new picture is that picture persists the smear that is caused because of human eye vision before and after eliminating.The producing method of the insertion picture that this is new is the black plug picture in the middle of the difference between its front and back picture of comparison produces; Wherein the discrepant place of two front and back pictures shows black data; To eliminate the left next persistence of vision effect of previous picture, in order to the demonstration of next picture.And, for the part that does not have unusual fluctuation, on the black plug picture, still keep former data, so also can not cause the problem of flicker because the black plug data occur over just the place that unusual fluctuation is arranged in the picture.
Please refer to Fig. 5, it is for carrying out local black insertion method that the present invention discloses to carry out the system architecture diagram of display device 10 first embodiment of local black insertion to dynamic image.Display device 10 has a control module 11 (in an embodiment of the present invention, can be in addition insert picture generator 13 by a controller 12 and and form, also can be merely a Control Component), a storage element 14, a signal source 16 and a display unit 15.Signal source 16 can provide and comprise dynamically and the picture signal of tableaux; And (like the 60Hz in the present embodiment) offers controller 12 with these picture signals with a first frequency; 12 of controllers are electrically connected on signal source 16 and storage element 14; 16 to receive the picture signals and analyze from the signal source, these picture signals also are stored in storage element 14.Storage element 14 can be internal memory such as random access memory (the random access memory with quick-reaction capability (QRC) and synchronous access ability; RAM) etc.; In the embodiment of Fig. 5; Storage element 14 can be single internal memory, utilizes the temporary control module 11 that can supply of memory regions different in the internal memory relatively to insert one first picture and one second picture afterwards before the picture.Storage element 14 also can be two different physical memories, with temporary this first picture and this second picture respectively.Control module 11 is when receiving the continuous pictures signal that transmits in signal source 16; Difference before and after comparing respectively between the two picture signals; And according to its difference generation one insertion picture, these work then more can be segmented by controller 12 and insert picture generator 13 and carry out.As its name suggests, insert picture generator 13 and be used for producing the insertion picture with local black insertion effect, controller 12 then is used for handling, comparing the picture signal that signal source 16 produces, and the picture signal is sent to display unit 15 with the output demonstration.15 of display units are electrically connected on control module 11 in addition, and it can be display or display panels such as LCD, CRT, electricity slurry.
What pay special attention to is; Image treatment method that the present invention disclosed and display device are characterised in that the difference between the comparison continuous pictures signal; The insertion picture that has the local black insertion effect with generation; Therefore the described device architecture figure of Fig. 5 (and Fig. 8 afterwards) is all the framework of wherein a kind of device of realizing the inventive method; The example of Fig. 5 and Fig. 8 is not to be the unique device set-up mode of the present invention, and wherein the function of assembly (especially controller 12 in the control module 11 and insertion picture generator 13) also can have the elasticity utilization beyond the aforesaid explanation.
Please refer to Fig. 6, Fig. 6 is the schematic flow sheet of local black insertion method 100 first embodiment that the present invention disclosed.Wherein display device 10,20 can alternately be carried out the demonstration of black plug and normal pictures, when normal pictures shows, can directly read the data in the storage element 14 and is presented on the display unit 15; When black plug, then read two groups of front and back pictures in storage element 14, compare picture element difference, discrepant part is inserted black data, does not have the part of difference then to keep former data output.Wherein each step is described below:
Step 102: control module 11 reads one second picture from signal source 16, and this second picture is stored in one second memory region in the storage element 14 (or one second internal memory).Before this, control module 11 is when handling previous insertion picture, and one first picture that signal source 16 was produced before this second picture has been stored in one first memory region (or one first internal memory) of storage element 14.In other words, this first picture and this second picture are the picture signal that signal source 16 produces with first frequency (like 60Hz) in regular turn.
Step 104: control module 11 this first memory region (or this first internal memory) in storage element 14 reads this first picture, and this first picture is sent to display unit 15 demonstrations.
Step 106: control module 11 reads this second picture and compares the difference between each corresponding picture element one by one with this first picture from storage element 14.
Step 108: if this corresponding picture element indifference (is represented in these continuous pictures in this first picture and this second picture; Be static block), then corresponding picture element content is kept the corresponding picture element content of former first picture in an insertion picture of follow-up generation.
Step 110:, should insert then that corresponding picture element content alteration is to deceive picture element in the picture if corresponding picture element is variant between two pictures of step 106 comparison (representative is dynamic block in these continuous pictures).
Be noted that especially; Because first picture is the picture that a plurality of first picture elements are constituted; Second picture is the picture that a plurality of second picture elements are constituted; Therefore abovementioned steps 106～step 110 is the difference of comparing one by one between first picture and corresponding first picture element of second picture and second picture element; And according to whether respectively indifference execution in step 106 or step 108 are arranged between the two corresponding picture elements, after all picture elements were all compared completion in first picture and second picture, then the content of this insertion picture also all generated (comprising the picture element of static block and the black picture element of variant part).
Step 112: then should insert picture and be sent to display unit 15 demonstrations.
Step 114: this second picture moved from this second memory region (or this second internal memory) deposit to this first memory region (or this first internal memory).
After execution of step 114; Then get back to step 102; Control module 11 reads a three-picture (continuing at the picture signal of second picture) from signal source 16; And this three-picture is stored in second memory region (or second internal memory) in the storage element 14, step 104 then is sent to display unit 15 with second picture in first memory region (or first internal memory) and shows.Aforementioned first picture (step 104), insert picture (step 112) and second picture (step 104) be by control module 11 with a second frequency (in present embodiment; Then for doubling the first frequency in signal source 16; Be 120Hz) be sent to display unit 15 and show; So can guarantee the continuous pictures signal that produced in display signal source 16, therefore extra adding black plug picture can not reduce the display frequency of continuous pictures signal.
Can know by above-mentioned explanation; Local black insertion method 100 is to be the method for a circular treatment from the continuous image in signal source 16; That is first picture that signal source 16 produces is transferred into display unit 15 demonstrations earlier; The difference of first picture and second picture relatively then, and also will insert picture is shown in display unit 15 to produce insertion picture between first picture and second picture, then shows second picture again.And after second picture; Control module 11 continues the next picture (for example three-picture) that reading signal source 16 produces; The difference that compares the three-picture and second picture again is to produce insertion picture therebetween and to be shown in display unit 15; Then show three-picture again; The mode of so carrying out with circulation is handled continuous pictures signal that signal source 16 sends and is inserted corresponding black plug picture in twos between the continuous pictures, and exports display unit 15 with frequency multiplication in the frequency of the continuous pictures signal in signal source 16 and show.
In addition; Owing in storage element 14, have first memory region (or first internal memory) and second memory region (or second internal memory); And the generation of black plug picture needs the difference between comparison " picture at present " (being first picture in the abovementioned steps) and " next picture " (being second picture in the abovementioned steps) two pictures; Therefore relatively the mode of picture can be of abovementioned steps in storage element 14 storages two; Without exception " picture at present " deposited in first memory region (or first internal memory) and " next picture " deposited in second memory region (or second internal memory) (step 114 is the step of this mode of realization); Also can directly store continuous pictures signal from signal source 16 with the mode that alternately stores; For example first memory region (or first internal memory) can successively store the first, the 3rd, the 5th when reality is carried out ... In the odd number picture; Second memory region (or second internal memory) then can successively store the second, the 4th, the 6th ... In the even number picture, that is to say that the action of step 114 also can be omissible step.
Please refer to Fig. 7, Fig. 7 is the two continuous pictures F that signal source 16 produces
6, F
7Local black insertion method 100 backs through Fig. 6 produce black plug picture I
6Synoptic diagram.When display unit 15 shows, is with picture F in reality
6, black plug picture I
6, picture F
7Order, be shown on the display unit 15 with the frequency of 120Hz.Can know continuous pictures F by Fig. 7
6, F
7Have and move block 61 and move to the left side of picture, therefore through step 106 picture F relatively by the right of picture
6And picture F
7Between difference after, can draw at black plug picture I
6The condition that the part of middle block 62 meets step 108 (is picture F
6With picture F
7In corresponding picture element indifference in the block 62), so a plurality of insertion picture element contents that block 62 is comprised are kept picture F
6Corresponding picture element content also is about to picture element in the block 62 with picture F
6The picture element in corresponding zone shows.The part of block 64 also meets the condition of step 108 in addition, therefore also with picture F
6The picture element in corresponding zone shows.Part as for block 63 then is picture F
6With picture F
7In meet step 110 condition (be picture F
6With picture F
7In corresponding picture element in the block 63 variant) the zone, so a plurality of insertion picture elements of being comprised of block 63 change to black picture element and show.
Please refer to Fig. 8; Fig. 8 is for carrying out the system architecture diagram of display device 20 second embodiment of local black insertion to dynamic image; Wherein first embodiment of the framework in the control module 21 of display device 20 (comprise controller 22, insert picture generator 23), storage element 24, display unit 25, signal source 26 and Fig. 5 is similar, repeats no more.Second embodiment then is provided with a comparer 27 in addition in control module 21; Be electrically connected between controller 22 and the insertion picture generator 23; Carry out the local black insertion method 100 of the 6th figure when display device 20; Wherein step 106 is aspect the difference of judging between each corresponding picture element of first picture and second picture; Then can further utilize threshold values mode relatively; That is, then insert in the picture corresponding picture element content and keep the corresponding picture element content of former first picture (simulation) in step 108 in one of follow-up generation when the difference of this corresponding picture element in first picture and this second picture during less than one first threshold values (representative is that static block or picture element change less relatively dynamic block in these continuous pictures); And the difference of corresponding picture element (is represented in these continuous pictures greater than this first threshold values between two pictures of step 106 comparison; Be that picture element changes relatively large dynamic block), should insert then that corresponding picture element content alteration is to deceive picture element (simulating in step 110) in the picture.
Please refer to Fig. 9, Fig. 9 is the schematic flow sheet of local black insertion method 200 second embodiment that the present invention disclosed.The mode that aforementioned local black insertion method 100 with one first threshold values differentiation picture element difference degree and the 6th figure all belongs to dichotomy is handled the difference between the picture element; Carry out black plug when just difference is greater than this first threshold values (threshold values is 0 or one constant value), difference is not then carried out black plug less than this first threshold values.Yet for the ambiguous video data that often has in the dynamic picture signal, between the for example similar redness, its difference not quite can not carried out black plug; The picture element big for difference then carries out black plug; And for the picture element that part difference " neither big nor small " arranged; If carry out the situation that black plug may cause flicker again; Under such situation, add the judgement of one second threshold values among local black insertion method 200 second embodiment of Fig. 9, wherein in step 206; When the difference between first picture and the corresponding picture element of second picture during greater than one first threshold values, the black plug of execution in step 210 (similar) then with step 110; When the difference between first picture and the corresponding picture element of second picture during less than this first threshold values, then further relatively this difference whether greater than one second threshold values.If greater than this second threshold values; Then with Fig. 8 cross 28 pairs of crystal drive circuits insert in the picture those pixels in addition overdrive voltage show corresponding picture element (step 209) in second picture; If less than this second threshold values; Then step 208 is similar with abovementioned steps 108, and the corresponding picture element of keeping former first picture shows.
Please refer to Figure 10, that Figure 10 signal source 26 produces is two continuous pictures F
8, F
9Local black insertion method 200 backs through Fig. 9 produce black plug picture I
7Synoptic diagram.When display unit 25 shows, is with picture F in reality
8, black plug picture I
7, picture F
9Order, be shown on the display unit 25 with the frequency of 120Hz.Can know continuous pictures F by Figure 10
8, F
9Have and move block 81 and move to the left side of picture, have the first close block 811 of color and second block 812 and move block 81 by the right of picture.Therefore comparing picture F through step 206
8And picture F
9Between difference after, can draw at black plug picture I
7In the part of each block 82,85,86 condition that meets step 208 (be picture F
8With picture F
9In the difference of corresponding picture element in each block 82,85,86 less than this first threshold values and less than this second threshold values), so a plurality of insertion picture element contents that block 82,85,86 is comprised are kept picture F
8Corresponding picture element content also is about to picture element in the block 82,85,86 with picture F
8The picture element in corresponding zone shows.Part as for block 83 then is picture F
8With picture F
9In meet step 210 condition (be picture F
8With picture F
9In the difference of corresponding picture element in the block 83 greater than this first threshold values) the zone, so a plurality of insertion picture elements of being comprised of block 83 change to black picture element and show.Changing as for the difference of the part of block 84 is for moving the difference of first block 811 and second block 812 in the block 81; Its difference after relatively less than this first threshold values; But greater than this second threshold values, therefore the picture element to block 84 imposes overdrive voltage, and it is made the preliminary filling of liquid crystal.Therefore; Utilize the local black insertion that Fig. 9 local black insertion method 200 disclosed/part to cross to drive that (partial black insertion/partial over driving, PBI/POD) technology can be used black plug effectively and cross the technology of driving; Make picture carry out local black insertion with the dynamic smear of effective elimination in; More be not prone to the phenomenon of flicker,, more can keep the overall brightness and the contrast of display device compared to general black plug.
In addition; Because the process of black plug is because the image overlapping of black area piece can cause the brightness decay of corresponding block; Therefore to black plug part (like the block 63 of Fig. 7 or the block 83 of Figure 10); The local black insertion method that the present invention disclosed can carry out the compensation in the brightness in addition, and concrete mode is shown in figure 11, and Figure 11 has identical picture F with Figure 10
8With picture F
9, but different with Figure 10 be to insert picture I
8 Block 87 each picture element content (representative picture F
8With picture F
9In the difference of corresponding picture element greater than this first threshold values) change to picture F
8With picture F
9In the mean value (or meaning mean flow rate) of corresponding picture element, both can reach the effect of eliminating the dynamic image smear thus, can keep this dynamic area again and have mean flow rate and can not produce the situation of brightness decay.
Especially it is to be noted; In order making comparisons, in aforesaid explanation, all to describe, but can know by the example of Figure 11 with the term of " black plug " with present technology; The present invention further expands as " Plug Grey " (or inserting intermediate luminance) with " black plug ", to obtain better dynamic menu performance.Therefore aforementioned all terms of using " black plug " only should not be read as and can insert black picture element.In embodiment explanation, should understand for inserting one and can eliminate the picture element that human eye vision persists phenomenon, explanation hereby with reference to instructions.
Local black insertion method that the present invention disclosed and relevant display device are to the part that dynamic performance is arranged in the continuous picture signal; Carry out the black plug picture of an average tone (or insert); To eliminate the smear phenomenon of this part; And the part of static performance in the picture is then kept former image output, with the flicker problem of avoiding the static part black plug is produced.Wherein can relatively judge the picture element difference of front and back two pictures that insert picture in addition by different threshold values to the part that dynamic performance is arranged in the picture; And in inserting picture, carry out black plug to the block that differs greatly; Keep former picture element output to the less block of difference; Difference then executes one in addition between the block of two threshold values, and driving voltage carries out preliminary filling to liquid crystal excessively, makes part dynamic and static in the picture all have high-quality performance.The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (19)
1. the local black insertion method of a dynamic image; It is characterized in that including: read one first picture and one second picture and be stored in a storage element from a signal source, this first picture and this second picture are made up of at least one first pixel and at least one second pixel respectively; The difference of each corresponding first pixel of this first picture and this second picture and second pixel relatively; According to the difference of this first picture and each corresponding first pixel of this second picture and second pixel, corresponding the 3rd pixel in the insertion picture is changed to one the 4th pixel; And in a display unit, show this first picture, this insertion picture and this second picture in regular turn; The picture signal that produces in regular turn with a first frequency for this signal source of this first picture and this second picture wherein.
2. according to the local black insertion method of right 1 described dynamic image; It is characterized in that: wherein according to the difference of this first picture and each corresponding first pixel of this second picture and second pixel; Inserting corresponding the 3rd pixel in the picture with one changes to one the 4th pixel and comprises step: when first pixel of this first picture differs from corresponding second pixel of this second picture, should insert that corresponding the 3rd pixel changes to the 4th pixel in the picture.
3. the local black insertion method of dynamic image according to claim 1; It is characterized in that: wherein according to the difference of this first picture and each corresponding first pixel of this second picture and second pixel; Inserting corresponding the 3rd pixel in the picture with one changes to one the 4th pixel and comprises step: when the difference of first pixel of this first picture and corresponding second pixel of this second picture during greater than one first threshold values, should insert that corresponding the 3rd pixel changes to the 4th pixel in the picture.
4. the local black insertion method of dynamic image according to claim 3; It is characterized in that:, should insert that corresponding the 3rd pixel shows with this first pixel in the picture wherein when the difference of corresponding second pixel in first pixel of this first picture and this second picture during less than this first threshold values.
5. the local black insertion method of dynamic image according to claim 3; It is characterized in that: wherein according to the difference of this first picture and each corresponding first pixel of this second picture and second pixel; Inserting corresponding the 3rd pixel in the picture with one changes to one the 4th pixel and comprises step in addition: when the difference of corresponding second pixel in first pixel of this first picture and this second picture during less than this first threshold values and greater than one second threshold values, should insert that corresponding the 3rd pixel imposes corresponding this second pixel of overdrive voltage demonstration in the picture.
6. the local black insertion method of dynamic image according to claim 5; It is characterized in that:, should insert that corresponding the 3rd pixel shows with this first pixel in the picture wherein when the difference of corresponding second pixel in first pixel of this first picture and this second picture during less than this second threshold values.
7. the local black insertion method of dynamic image according to claim 1 is characterized in that: wherein inserting in the picture corresponding the 3rd pixel with one, to change to one the 4th pixel be to deceive pixel for should corresponding the 3rd pixel changing to one.
8. according to the local black insertion method of the said dynamic image of claim 1, it is characterized in that: wherein corresponding the 3rd pixel in the insertion picture being changed to one the 4th pixel is for this corresponding the 3rd pixel is changed to the pixel with corresponding first pixel and second pixel average.
9. the local black insertion method of dynamic image according to claim 1 is characterized in that: show in regular turn in a display unit that wherein this first picture, this insertion picture and this second picture comprise step: in this display unit, show this first picture, this insertion picture and this second picture in regular turn with a second frequency.
10. one kind can be directed against the display device that dynamic image carry out local black insertion; It is characterized in that including: a signal source; Be used for producing at least one picture signal with a first frequency; This at least one picture signal comprises one first picture and one second picture at least, the picture signal that this first picture and this second picture produce for this signal source in regular turn, and this first picture and this second picture are made up of at least one first pixel and at least one second pixel respectively; One storage element; One control module; Be electrically connected on this signal source and this storage element; Use from this signal source and read this first picture and this second picture; And be stored in this storage element, and relatively and according to the difference of this first picture and each corresponding first pixel of this second picture and second pixel, insert picture to produce one; And a display unit, be electrically connected on this control module, be used for showing in regular turn this first picture, this insertion picture and this second picture.
11. display device according to claim 10; It is characterized in that: wherein this control module comprises a controller and an insertion picture generator; This controller is used for the difference of this first picture relatively and each corresponding first pixel of this second picture and second pixel; This insertion picture generator is used for producing this insertion picture and according to the difference of this first picture and each corresponding first pixel of this second picture and second pixel, should insert that corresponding the 3rd pixel changes to one the 4th pixel in the picture.
12. display device according to claim 11; It is characterized in that: when wherein this insertion picture generator first pixel of being intended to be this first picture differs from corresponding second pixel of this second picture, should insert that corresponding the 3rd pixel changes to the 4th pixel in the picture.
13. display device according to claim 11; It is characterized in that: other comprises a comparer; Be electrically connected on this controller and this insertion picture generator; Be used for first pixel of comparison one first threshold values and this first picture and the difference of corresponding second pixel of this second picture; The difference of first pixel and corresponding second pixel of this second picture that this insertion picture generator is intended to be this first picture is during greater than this first threshold values, should insert that corresponding the 3rd pixel changes to the 4th pixel in the picture.
14. display device according to claim 13; It is characterized in that: this insertion picture generator difference during of being intended to be corresponding second pixel in first pixel and this second picture of this first picture wherein less than this first threshold values, should insert that corresponding the 3rd pixel shows with this first pixel in the picture.
15. display device according to claim 13; It is characterized in that: other comprises one and crosses crystal drive circuit; Be electrically connected on this insertion picture generator; This comparer is used for first pixel of comparison one second threshold values and this first picture and the difference of corresponding second pixel of this second picture in addition; This difference of crossing corresponding second pixel in first pixel and this second picture that crystal drive circuit is intended to be this first picture is during less than this first threshold values and greater than this second threshold values, should insert in the picture corresponding the 3rd pixel and impose overdrive voltage and show corresponding this second pixel.
16. display device according to claim 15; It is characterized in that: wherein this insertion picture generator is used for the difference of in first pixel of this first picture and this second picture corresponding second pixel during less than this second threshold values in addition, should insert that corresponding the 3rd pixel shows with this first pixel in the picture.
17. display device according to claim 11 is characterized in that: wherein the 4th pixel is a black pixel.
18. display device according to claim 11 is characterized in that: wherein the 4th pixel is the picture element with corresponding first pixel and second pixel average.
19. display device according to claim 10 is characterized in that: wherein this control module is used for this first picture, this insertion picture and this second picture are inputed to this display unit demonstration with a second frequency in addition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103121261A CN101727815B (en) | 2009-12-23 | 2009-12-23 | Local black insertion method for dynamic image and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009103121261A CN101727815B (en) | 2009-12-23 | 2009-12-23 | Local black insertion method for dynamic image and display device |
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| Publication Number | Publication Date |
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| CN101727815A CN101727815A (en) | 2010-06-09 |
| CN101727815B true CN101727815B (en) | 2012-04-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103139524B (en) * | 2011-12-05 | 2016-07-06 | 联想(北京)有限公司 | Method for optimizing video and messaging device |
| CN102800290B (en) * | 2012-08-13 | 2014-07-02 | 京东方科技集团股份有限公司 | Frame-inserting method of liquid crystal display device and liquid crystal display device |
| KR20140037632A (en) * | 2012-09-19 | 2014-03-27 | 삼성전자주식회사 | Display apparatus and control method thereof |
| CN102903348B (en) * | 2012-09-25 | 2015-02-04 | 苏州佳世达光电有限公司 | Display device with static image judging function and judging method of device |
| CN106331851B (en) * | 2016-08-31 | 2020-01-17 | 深圳市华星光电技术有限公司 | Liquid crystal television and data processing device thereof |
| CN108574794B (en) * | 2018-03-30 | 2021-01-22 | 京东方科技集团股份有限公司 | Image processing method and device, display equipment and computer readable storage medium |
| CN108550347B (en) * | 2018-05-31 | 2020-11-10 | 京东方科技集团股份有限公司 | Light emission control signal generation device and display device |
| CN108986753B (en) * | 2018-06-29 | 2021-01-26 | 北京小米移动软件有限公司 | Interface display method and device |
| CN109215596B (en) * | 2018-10-12 | 2020-04-28 | 惠州市华星光电技术有限公司 | Method and device for automatically adjusting overdrive voltage and display panel |
| CN112885299B (en) * | 2021-01-22 | 2022-06-24 | 合肥京东方卓印科技有限公司 | Display brightness compensation method, compensation circuit and display device |
| CN112882788B (en) * | 2021-03-05 | 2022-05-13 | 中富通集团股份有限公司 | Method for eliminating 5G mobile terminal screen smear and storage device |
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