CN101261813B - A method for improving LCD display with black insertion technology - Google Patents
A method for improving LCD display with black insertion technology Download PDFInfo
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- CN101261813B CN101261813B CN200710079999A CN200710079999A CN101261813B CN 101261813 B CN101261813 B CN 101261813B CN 200710079999 A CN200710079999 A CN 200710079999A CN 200710079999 A CN200710079999 A CN 200710079999A CN 101261813 B CN101261813 B CN 101261813B
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Abstract
A display method improves a liquid crystal display by means of black frame insertion technology; the display method includes receiving an image gray-scale data stream; generating a first image brightness data stream according to the gray-scale data stream of the image and a first Gamma curve; generating a second image brightness data stream according to the gray-scale data stream and a second Gamma curve of the image; sequentially inserting data in the second image brightness data stream to the first image brightness data stream to generate a third image brightness data stream; providing the third image brightness data stream for a liquid crystal display to display the image.
Description
Technical field
The invention relates to and a kind ofly improve the method for liquid crystal display displays, or rather, the invention relates to the method that a kind of black insertion technology according to gamma (Gamma) curve improves liquid crystal display displays with black insertion technology.
Background technology
Please refer to Fig. 1.(Cathode Ray Tube is CRT) with LCD (Liquid Crystal Display, the synoptic diagram of LCD) video picture mode difference for the expression cathode-ray tube display for Fig. 1.The A figure of Fig. 1 is the synoptic diagram of cathode-ray tube display video picture; The B figure of Fig. 1 is the synoptic diagram of LCD video picture.Suppose a pixel in the selected cathode-ray tube display, when picture 1 the GTG value of this pixel be 30 and pairing brightness is 3, the GTG value of picture 2 these pixels be 20 and pairing brightness is 2, the GTG value of picture 3 these pixels be 10 and pairing brightness be 1, then can see the situation shown in A figure among Fig. 1: cathode-ray tube display in picture 1 during scanned this pixel the brightness of pixel be 1, decay becomes 0 immediately then; Cathode-ray tube display in picture 2 during scanned this pixel the brightness of pixel be 2, decay becomes 0 immediately then; Cathode-ray tube display in picture 3 during scanned this pixel the brightness of pixel be 3, decay becomes 0 immediately then.Similarly, a pixel in the selected LCD, the GTG value of picture 1 this pixel be 30 and pairing brightness is 3, the GTG value of picture 2 these pixels be 20 and pairing brightness is 2, the GTG value of picture 3 these pixels be 10 and pairing brightness be 1, then can see the situation shown in the B figure among Fig. 1: LCD in picture 1 during scanned this pixel the brightness of pixel be 3, continue brightness 1 then up to next picture; LCD in picture 2 during scanned this pixel the brightness of pixel be 2, continue brightness 2 then up to next picture; LCD in picture 3 during scanned this pixel the brightness of pixel be 1, continue brightness 3 then up to next picture.
Please continue with reference to figure 1.Can find out that from the B figure of Fig. 1 between picture 1 and the picture 2, between picture 2 and the picture 3, the brightness value of pixel is all variant.And the liquid crystal in the LCD when it is subjected to the driving of voltage, can rotate; And the behavior of rotating is continuous.That is to say that when liquid crystal turns to one first angle when making that brightness value is 2, at this time if requiring liquid crystal to turn to one second angle again makes that brightness value is 1, then this liquid crystal can slowly turn to this second angle from this first angle; Therefore, the variation of brightness value just can't jump to brightness value 1 from 2 moments of brightness value, has also just formed shown in the C of Fig. 1, and brightness jumps to 1 or jump to 2 from 3 from 2, has one section reaction time P, and among reaction time P, has brightness and pile up X.And during the picture of eye-observation liquid crystal display displays, the brightness of previous picture end can produce the ghost image of persistence of vision for human eye, and X is piled up in brightness, just can more increase the weight of the fatigue of human eye for brightness, and then produces and deepen ghost image.
Please refer to Fig. 2.Fig. 2 improves the method synoptic diagram of the ghost image of LCD for known black insertion technology.The A figure of Fig. 2 schemes identical with the A among Fig. 1.B figure among Fig. 2 is similar to the B figure among Fig. 1: pixel intensity is 3 when picture 1; Pixel intensity is 2 when picture 2; Pixel intensity is 1 when picture 3.And among the B figure that the B figure difference among the figure of the B among Fig. 2 and Fig. 1 is at Fig. 2, the duration of pixel intensity is kept to half in the LCD.That is to say that if the duration of a picture is T, then with picture duration dimidiation, the time pixel of preceding T/2 continues to have original brightness; The brightness of the time pixel of T/2 then is kept to 0, is complete black state.For instance, when picture 1, in the middle of time 0～T/2, the brightness of this pixel is 3, and in the middle of time T/2～T, this pixel intensity is kept to 0; When picture 2, in the middle of time T～3T/2, the brightness of this pixel is 2, and in the middle of time 3T/2～2T, this pixel intensity is kept to 0; When picture 3, in the middle of time 2T～5T/2, the brightness of this pixel is 1, and in the middle of time 5T/2～3T, this pixel intensity is kept to 0.In the equivalence, the B figure of Fig. 2 is with between the original picture and picture, inserts a complete black picture as the interval.So sending the data of pixel to, LCD becomes twice: except original picture data, also need transmit the complete black picture of same data volume, but the renewal frequency of raw frames is still identical, so LCD transmission data frequency requires to increase to twice.For instance, if the renewal frequency of raw frames is 60 hertz, use known black insertion technology, the frequency that LCD transmits pixel data just needs 120 hertz.And the mode of above-mentioned black plug is in order to simulate the behavior of cathode-ray tube (CRT) video picture, to lower the ghost image that human eye produces brightness fatigue.
Though in the mode of B figure among Fig. 2, can improve the phenomenon of ghost, can produce the problem of film flicker.This situation all keeps even more serious in certain in the brightness of several picture pixels.Please refer to Fig. 3.Fig. 3 is expression produces scintillation with known black insertion technology a synoptic diagram.The A figure of Fig. 3 is the brightness synoptic diagram of one pixel when not using known black insertion technology on the LCD: the brightness when picture 1 of this pixel is 2 to last till next picture; The brightness when picture 2 of this pixel is 2 to last till next picture; The brightness when picture 3 of this pixel is 2 to last till next picture.Therefore, during the LCD of user A figure in watching Fig. 3, do not have the problem of film flicker.And B figure contrasts the pixel data of A figure among Fig. 3 and uses the brightness synoptic diagram of inserting pixel when deceiving technology entirely among Fig. 3: this pixel is 2 in the preceding semiperiod brightness of picture 1, and the later half cycle is 0; The semiperiod brightness before picture 2 of this pixel is 2, and the later half cycle is 0; The semiperiod brightness before picture 3 of this pixel is 2, and the later half cycle is 0.Therefore, for the user, just can obviously experience picture in flicker.As shown in the above,, produced the problem of film flicker, influenced the display quality of LCD equally though use known black insertion technology can improve the problem that picture has ghost.
Summary of the invention
The invention provides a kind of display packing of improving a LCD with black insertion technology.This display packing comprises step: receive luma data stream; Corresponding relation according to this luma data stream and the brightness and first luma data produces one first brightness data stream; Corresponding relation according to this luma data stream and the brightness and second luma data produces one second brightness data stream; And with this first brightness data stream second brightness data stream is staggered offers this LCD to show a picture streams with this; Wherein the corresponding relation of the corresponding relation of this brightness and first luma data and this brightness and second luma data is not the corresponding relation that all luma data is corresponded to zero luminance.
The present invention provides a kind of display packing of improving a LCD with black insertion technology in addition.This display packing comprises step: receive luma data stream; Corresponding relation according to this luma data stream and the brightness and first luma data produces one first brightness data stream; Corresponding relation according to this luma data stream and the brightness and second luma data produces one second brightness data stream; And with this first brightness data stream and this second brightness data stream staggered after, and the reduction of the system data in the brightness data after will interlocking offers this LCD to show a picture streams; Wherein the corresponding relation of the corresponding relation of this brightness and first luma data and this brightness and second luma data is not the corresponding relation that all luma data is corresponded to zero luminance.
The present invention provides a kind of LCD with black insertion technology display frame in addition.This LCD comprises a receiving trap, in order to receive luma data stream; One first brightness generation device, the corresponding relation in order to according to this luma data stream and the brightness and first luma data produces one first brightness data stream; One second brightness generation device, the corresponding relation in order to according to this luma data stream and the brightness and second luma data produces one second brightness data stream; And a data interlace device, in order to this first brightness data stream is staggered with this second brightness data stream, offer this LCD to show a picture streams; Wherein the corresponding relation of the corresponding relation of this brightness and first luma data and this brightness and second luma data is not the corresponding relation that all luma data is corresponded to zero luminance.
Description of drawings
Fig. 1 is the synoptic diagram of expression cathode-ray tube display and LCD video picture mode difference;
Fig. 2 improves the method synoptic diagram of the ghost image of LCD for known black insertion technology;
Fig. 3 produces the synoptic diagram of scintillation with known black insertion technology for expression;
Fig. 4 is for improving the first embodiment synoptic diagram of the method for LCD with black insertion technology of the present invention;
Fig. 5 is for improving the second embodiment synoptic diagram of the method for LCD with black insertion technology of the present invention;
Fig. 6 improves the first embodiment synoptic diagram of the pairing gamma curve of method of LCD for black insertion technology of the present invention;
Fig. 7 improves the second embodiment synoptic diagram of the pairing gamma curve of method of LCD for black insertion technology of the present invention;
Fig. 8 improves the 3rd embodiment synoptic diagram of the method for LCD for black insertion technology of the present invention;
Fig. 9 improves the 3rd embodiment synoptic diagram of the pairing gamma curve of method of LCD for black insertion technology of the present invention;
Figure 10 improves the 4th embodiment synoptic diagram of the method for LCD for black insertion technology of the present invention;
Figure 11 improves the 5th embodiment synoptic diagram of the method for LCD for black insertion technology of the present invention;
Figure 12 lowers the method synoptic diagram of picture data amount for the present invention;
Figure 13 is the method flow diagram that improves LCD with black insertion technology of the present invention.
The main element symbol description:
The P reaction time
X brightness is piled up
The T picture duration
G0, G1, G3, G4, G5, G6 gamma curve
A, a ', b, b ' size of data
Embodiment
Please refer to Fig. 4.Fig. 4 is the first embodiment synoptic diagram that improves the method for LCD with black insertion technology of the present invention.A figure is identical with A figure among Fig. 3 among Fig. 4: some brightness is all 2 to this pixel in picture 1～3.B figure is according to the pixel data of A figure among Fig. 4 and the brightness synoptic diagram of pixel when using black insertion technology of the present invention among Fig. 4: this pixel is 2 in the preceding semiperiod brightness of picture 1, and the later half cycle is 1; The semiperiod brightness before picture 2 of this pixel is 2, and the later half cycle is 1; The semiperiod brightness before picture 3 of this pixel is 2, and the later half cycle is 1.Hence one can see that, and black insertion technology of the present invention inserts raw frames in the preceding semiperiod of picture, is not complete black picture and insert one in the later half cycle of picture.Compare that B schemes the effect of known black insertion technology among Fig. 3, can find out when continuous several picture pixel brightness are all identical, use black insertion technology of the present invention less (because of the picture in later half cycle of insert is not black full picture in the difference of preceding semiperiod of a picture and later half cycle brightness, so the impression of human eye is not strong), also therefore alleviated the situation of LCD flicker.
Please refer to Fig. 5.Fig. 5 is the second embodiment synoptic diagram that improves the method for LCD with black insertion technology of the present invention.A figure among Fig. 5 schemes identical with the B among Fig. 1: this pixel intensity is 1 in picture 3, continues brightness 1 then up to next picture; This pixel intensity is 2 in picture 2, continues brightness 2 then up to next picture; This pixel intensity is 3 in picture 1, continues brightness 3 then up to next picture.B figure is according to the pixel data of A figure among Fig. 5 and the brightness synoptic diagram of pixel when using black insertion technology of the present invention among Fig. 5: this pixel is 1 in the preceding semiperiod brightness of picture 3, and the later half cycle is 0.5; The semiperiod brightness before picture 2 of this pixel is 2, and the later half cycle is 1.2; The semiperiod brightness before picture 1 of this pixel is 3, and the later half cycle is 2.1.Hence one can see that, and black insertion technology of the present invention inserts raw frames in the preceding semiperiod of picture, is not complete black picture and insert one in the later half cycle of picture.And this does not become a proportionate relationship for the brightness of full picture pixel of deceiving with the brightness value of raw frames pixel.
Please refer to Fig. 6, and scheme with reference to the B among the figure 5 simultaneously.Fig. 6 improves the first embodiment synoptic diagram of the pairing gamma curve of method of LCD for black insertion technology of the present invention.Fig. 6 is the synoptic diagram of pairing gamma curve of the raw frames of B figure in the presentation graphs 5 and the pairing gamma curve of black plug picture.Suppose that in the raw frames data pixel is 10 in the GTG value of picture 3, and according to gamma curve G0, pairing brightness is 1; Pixel is 20 in the GTG value of picture 2, and according to gamma curve G0, pairing brightness is 2; Pixel is 30 in the GTG value of picture 1, and according to gamma curve G0, pairing brightness is 3; In the picture that black insertion technology then of the present invention inserted in the later half cycle of picture 3, the GTG value of this pixel still is 10, and according to gamma curve G1, pairing brightness is 0.5; In the picture that inserts in the later half cycle of picture 2, the GTG value of this pixel is 20, and according to gamma curve G1, pairing brightness is 1.2; In the picture that inserts in the later half cycle of picture 1, the GTG value of this pixel is 30, and according to gamma curve G1, pairing brightness is 2.1.That is to say, in black insertion technology of the present invention, GTG value with a raw frames, the preceding semiperiod in display frame produces brightness with one first gamma curve, and produce brightness with one second gamma curve in the later half cycle of display frame, in this way, lower the problem of piling up, also reduced the phenomenon of flicker simultaneously as the brightness of the C among Fig. 1.
Please refer to Fig. 7.Fig. 7 improves the second embodiment synoptic diagram of the pairing gamma curve of method of LCD for black insertion technology of the present invention.As shown in the figure, transverse axis is a pixel gray level value, and the longitudinal axis is a brightness value, and gamma curve can be divided into 3 sections: before GTG value a, gamma curve is original gamma curve G0; And after GTG value a, gamma curve is divided into gamma curve G3 and gamma curve G4.And when display frame, the GTG value that the preceding semiperiod received of picture is corresponding to gamma curve G0 and G3; The GTG value that the later half cycle received of picture is corresponding to gamma curve G0 and G4.The reason of Fig. 7 and Fig. 6 is similar, if difference only is when realizing black insertion technology of the present invention with the gamma curve of Fig. 7, when the pairing GTG value of pixel during less than a, then shown brightness all identical (because all corresponding to same gamma curve G0) of the preceding semiperiod of picture and later half cycle; And when the pairing GTG value of pixel during greater than a, then the gamma curve that the preceding semiperiod corresponded at picture is G3, and the gamma curve that the later half cycle corresponded to is G4, therefore can be variant in brightness.The purpose of making is to be when the GTG value is low like this, and the in confused situation of brightness accumulation shows, and therefore can not need use black insertion technology of the present invention; And when GTG is high, just need lower ghost image with black insertion technology of the present invention, this kind mode can also promote the display quality of picture.
Please refer to Fig. 8.Fig. 8 improves the 3rd embodiment synoptic diagram of the method for LCD for black insertion technology of the present invention.Fig. 8 realizes the synoptic diagram of black insertion technology for the present invention uses the gamma curve of Fig. 7.In picture 1,2,3, the GTG value of pixel is all less than a, so raw frames and black plug picture can see then that all corresponding to gamma curve G0 the mode that brightness shows is all identical with no black insertion technology in picture 1,2,3.And in the picture 4,5, the GTG value of pixel is greater than a, therefore the pairing gamma curve of raw frames becomes G3, the pairing gamma curve of black plug picture becomes G4, and then as can be seen among picture 4,5, the brightness in preceding semiperiod and later half cycle is because of different gamma curve difference to some extent.
Please refer to Fig. 9.Fig. 9 improves the 3rd embodiment synoptic diagram of the pairing gamma curve of method of LCD for black insertion technology of the present invention.As shown in FIG., gamma curve G0 is that original gamma curve, gamma curve G5 are that pairing gamma curve of semiperiod before the picture, gamma curve G6 are pairing gamma curve of later half cycle of picture.Therefore, black insertion technology of the present invention, also can utilize two kinds of different gamma curve, make the GTG value of pixel in the pairing brightness of the preceding semiperiod of a picture and the pairing brightness of later half cycle of this picture in this display frame of LCD, the brightness of measuring with a color analyser (CA210), can level off to the picture that does not use black insertion technology, use the present invention to use the shown picture of black insertion technology except eliminating ghost image, mean flow rate can not descend, and can not feel the picture deepening when user views and admires yet.For instance, when the GTG value of this pixel is 50, and the pairing brightness of original gamma curve G0 is 5 o'clock, employed gamma curve G6 of later half cycle pairing brightness when pixel gray level value 50 of setting picture earlier is 2, pairing brightness of semiperiod (is supposed since 0 before beginning to be set in picture this moment, slowly toward rising), then to color analysis instrument CA210 display frame, when the synthetic brightness that analyzes the present whole cycle of reception as color analysis instrument CA210 is 5 (representing the viewed whole cycle output brightness of human eye to equal original brightness 5), the present picture displayed of expression LCD meets original gamma curve G0, with at this time before picture shown brightness (supposing 9) of semiperiod demarcate gamma curve G5, by that analogy, if GTG value one has 255 rank, then demarcate the gamma curve G5 that just can retrodict out in this way 255 times, and then come display frame with black insertion technology of the present invention.In addition, the sampling principle of color analysis instrument CA210 be with sample brightness in the length of a frequency, and color analysis instrument CA210 can count the brightness of all samplings during this section, the brightness of calculating during this period of time after the last summation to be synthesized.
For instance, suppose that the display frequency of LCD before black insertion technology uses is 60 hertz, therefore, the black plug shown frequency of LCD afterwards is 120 hertz (preceding semiperiod+later half cycle).In addition, supposing to set color analysis instrument CA210 sample frequency is 60 hertz, and the time cycle of each sampling is 16.66 microseconds, so the setting representative requires color analysis instrument CA210 sampling 10 seconds.
Therefore, when the LCD behind the black plug is offered color analysis instrument CA210 sampling brightness, color analysis instrument CA210 can be with 60 hertz frequency continuous sampling 10 seconds, just sample altogether 600 times, and the time of each sampling is 16.66 microseconds, and in 16.66 microseconds of each sampling, comprised complete sampling of the brightness (corresponding to gamma curve G5) of semiperiod picture before the LCD and the complete sampling of brightness (corresponding to gamma curve G6) the later half cycle picture of LCD, therefore continuous sampling is after 10 seconds, can obtain near 600 the complete preceding semiperiod pictures and the synthetic brightness value of later half cycle picture, again these 600 synthetic brightness values are calculated the brightness of calculating during this period of time after the last summation to be synthesized.
And general original gamma curve G0 on the LCD of PC generally use two kinds of gamma 2.2 (gamma 2.2) and gammas 1.8 (gamma 1.8) are arranged.
Please refer to Figure 10.Figure 10 improves the 4th embodiment synoptic diagram of the method for LCD for black insertion technology of the present invention.Figure 10 is the synoptic diagram that black insertion technology of the present invention uses the gamma curve of Fig. 9.A figure among Figure 10 schemes identical with the B among Fig. 1.B figure among Figure 10 is according to the pixel data of the A figure among Figure 10 and the brightness synoptic diagram of pixel when using the gamma curve of black insertion technology of the present invention and Fig. 9: this pixel is 10 in the GTG value of picture 3, therefore the semiperiod is 1.8 corresponding to gamma curve G5 brightness before, and the later half cycle is 0.6 corresponding to gamma curve G6 brightness; This pixel is 20 in the GTG value of picture 2, and the therefore preceding semiperiod is 2.7 corresponding to gamma curve G5 brightness, and the later half cycle is 1.2 corresponding to gamma curve G6 brightness; This pixel is 30 in the GTG value of picture 1, and the therefore preceding semiperiod is 3.5 corresponding to gamma curve G5 brightness, and the later half cycle is 2.2 corresponding to gamma curve G6 brightness.Therefore, black insertion technology of the present invention, also can utilize two kinds of different gamma curve, the display effect of totalling that makes the brightness of preceding semiperiod of the B figure picture among Figure 10 and the brightness in later half cycle of picture, can level off to the picture that does not use black insertion technology, and can eliminate ghost image, also can not feel the picture deepening when user is viewed and admired.
Please refer to Figure 11.Figure 11 improves the 5th embodiment synoptic diagram of the method for LCD for black insertion technology of the present invention.Figure 11 is the gamma curve synoptic diagram that black insertion technology of the present invention uses Fig. 9.A figure among Figure 11 schemes identical with the A among Fig. 3.B figure among Figure 11 is according to the pixel data of the A figure among Figure 11 and the brightness synoptic diagram of pixel when using the gamma curve of black insertion technology of the present invention and Fig. 9: this pixel is 20 in the GTG value of picture 1, therefore the semiperiod is 2.7 corresponding to gamma curve G5 brightness before, and the later half cycle is 1.2 corresponding to gamma curve G6 brightness; This pixel is 20 in the GTG value of picture 2, and the therefore preceding semiperiod is 2.7 corresponding to gamma curve G5 brightness, and the later half cycle is 1.2 corresponding to gamma curve G6 brightness; This pixel is 20 in the GTG value of picture 3, and the therefore preceding semiperiod is 2.7 corresponding to gamma curve G5 brightness, and the later half cycle is 1.2 corresponding to gamma curve G6 brightness.Therefore, black insertion technology of the present invention, also can utilize two kinds of different gamma curve, the display effect of totalling that makes the brightness of preceding semiperiod of B figure picture among Figure 11 and the brightness in later half cycle of picture, can level off to the picture that does not use black insertion technology, and can eliminate ghost image, also can not feel the picture deepening when user is viewed and admired.
In the application of reality, because the picture data that general LCD is received, through after implementing black insertion technology of the present invention, data volume will become twice, might exceed the size that controller on LCD can receive data volume.Therefore, in practical application, black insertion technology of the present invention can reduce the partial data amount.For instance, when the resolution of a picture was 1280x1024, its actual data volume was 1688x1066, and unnecessary part has comprised vertical synchronizing signal (V-sync) and horizontal-drive signal (H-sync), this part is outside display frame, and the user can't see.That is to say, the picture data that LCD received has comprised display picture data and system data, and the present invention is about to the fractional reduction of system data, so that the picture data amount after doubling, the degree that can receive greater than the controller on the LCD not.
Please refer to Figure 12.Figure 12 lowers the method synoptic diagram of picture data amount for the present invention.A figure among Figure 12 is the picture data after expression doubles.Picture data after the B figure expression reduction among Figure 12.This figure represents with the picture data of horizontal direction that promptly vertical direction can also the identical practice be implemented.Shown in the A figure among Figure 12, the picture data after doubling has comprised display picture data and system data.The present invention is promptly to be reduced to (a '+b '+a '+b ') with life size for the system data of (a+b+a+b).In this way, then the final picture data can effectively be reduced.
Please refer to Figure 13.Figure 13 improves the method flow diagram of LCD with black insertion technology for the present invention.Step is described as follows:
Step 1301: beginning;
Step 1302: receive picture luma data stream with a preset frequency;
Step 1303:, produce one first picture brightness data stream according to this picture luma data stream and one first gamma curve;
Step 1304:, produce one second picture brightness data stream according to this picture luma data stream and one second gamma curve;
Step 1305: the data in this second picture brightness data stream are inserted this first picture brightness data stream in regular turn to produce three-picture brightness data stream;
Step 1306: the redundant data in this three-picture brightness data is reduced to produce one the 4th picture brightness data stream;
Step 1307: the 4th picture brightness data stream is offered the liquid crystal display displays picture with this preset frequency of twice;
Step 1308: finish.
In sum, black insertion technology of the present invention except that ghost image is eliminated, can also improve the problem of prior art film flicker, and promotes the display quality of LCD.
The above only is the preferred embodiments of the present invention, and all equivalent variations and modifications of being done according to the present patent application claim all should belong to covering scope of the present invention.
Claims (24)
1. one kind is improved the display packing of a LCD with black insertion technology, comprises step:
Receive luma data stream;
Corresponding relation according to described luma data stream and the brightness and first luma data produces one first brightness data stream;
Corresponding relation according to described luma data stream and the brightness and second luma data produces one second brightness data stream; And
Described first brightness data stream is offered described LCD to show a picture streams with described second brightness data stream is staggered;
The corresponding relation of the corresponding relation of the wherein said brightness and first luma data and described brightness and second luma data is not the corresponding relation that all luma data is corresponded to zero luminance, and wherein said brightness is the different brightness and the corresponding relation of luma data with the corresponding relation of first luma data and the corresponding relation of the described brightness and second luma data.
2. display packing according to claim 1 wherein receives described luma data stream and comprises: receive described luma data stream with a frequency; Described first brightness data stream is staggered with the twice of described frequency with described second brightness data stream, offer described LCD to show described picture streams.
3. display packing according to claim 1, the corresponding relation of the wherein said brightness and first luma data are default corresponding relations.
4. display packing according to claim 1, also comprise: the brightness of measuring described picture streams with a color analyser is to adjust the corresponding relation of the described brightness and second luma data, so that the corresponding relation of described luma data stream and described picture streams meets gamma 1.8.
5. display packing according to claim 1, also comprise: the brightness of measuring described picture streams with a color analyser is to adjust the corresponding relation of the described brightness and second luma data, so that the corresponding relation of described luma data stream and described picture streams meets gamma 2.2.
6. display packing according to claim 4, wherein said color analysis instrument comes the brightness of described picture streams is sampled obtaining a synthetic brightness as sample frequency with described frequency, and adjusts the corresponding relation of the described brightness and second luma data according to described synthetic brightness and gamma 1.8.
7. display packing according to claim 5, wherein said color analysis instrument comes the brightness of described picture streams is sampled obtaining a synthetic brightness as sample frequency with described frequency, and adjusts the corresponding relation of the described brightness and second luma data according to described synthetic brightness and gamma 2.2.
8. display packing according to claim 1, wherein said brightness is the identical luma data and the corresponding relation of brightness with the corresponding relation of first luma data and the corresponding relation of the described brightness and second luma data under a predetermined GTG value; On described predetermined GTG value, be the different luma data and the corresponding relation of brightness.
9. one kind is improved the display packing of a LCD with black insertion technology, comprises step:
Receive luma data stream;
Corresponding relation according to described luma data stream and the brightness and first luma data produces one first brightness data stream;
Corresponding relation according to described luma data stream and the brightness and second luma data produces one second brightness data stream; And
With described first brightness data stream and described second brightness data stream staggered after, and the system data in the brightness data after will interlocking reduces and offers described LCD to show a picture streams;
The corresponding relation of the corresponding relation of the wherein said brightness and first luma data and described brightness and second luma data is not the corresponding relation that all luma data is corresponded to zero luminance, and wherein said brightness is the identical luma data and the corresponding relation of brightness with the corresponding relation of first luma data and the corresponding relation of the described brightness and second luma data under a predetermined GTG value; On described predetermined GTG value, be the different luma data and the corresponding relation of brightness.
10. display packing according to claim 9, wherein said system data comprises horizontal-drive signal and vertical synchronizing signal.
11. display packing according to claim 9 wherein receives described luma data stream and comprises: receive described luma data stream with a frequency; Described first brightness data stream is staggered with the twice of described frequency with described second brightness data stream, offer described LCD to show described picture streams.
12. display packing according to claim 9, the corresponding relation of the wherein said brightness and first luma data are default corresponding relations.
13. display packing according to claim 9, also comprise: the brightness of measuring described picture streams with a color analyser is to adjust the corresponding relation of the described brightness and second luma data, so that the corresponding relation of described luma data stream and described picture streams meets gamma 1.8.
14. display packing according to claim 10, also comprise: the brightness of measuring described picture streams with a color analyser is to adjust the corresponding relation of the described brightness and second luma data, so that the corresponding relation of described luma data stream and described picture streams meets gamma 2.2.
15. display packing according to claim 13, wherein said color analysis instrument comes the brightness of described picture streams is sampled obtaining a synthetic brightness as sample frequency with described frequency, and adjusts the corresponding relation of the described brightness and second luma data according to described synthetic brightness and gamma 1.8.
16. display packing according to claim 14, wherein said color analysis instrument comes the brightness of described picture streams is sampled obtaining a synthetic brightness as sample frequency with described frequency, and adjusts the corresponding relation of the described brightness and second luma data according to described synthetic brightness and gamma 2.2.
17. the LCD with black insertion technology display frame comprises:
One receiving trap is in order to receive luma data stream;
One first brightness generation device, the corresponding relation in order to according to described luma data stream and the brightness and first luma data produces one first brightness data stream;
One second brightness generation device, the corresponding relation in order to according to described luma data stream and the brightness and second luma data produces one second brightness data stream; And
One data interlace device is in order to offer described LCD to show a picture streams with described first brightness data stream with described second brightness data stream is staggered;
The corresponding relation of the corresponding relation of the wherein said brightness and first luma data and described brightness and second luma data is not the corresponding relation that all luma data is corresponded to zero luminance, and wherein said brightness is the different luma data and the corresponding relation of brightness with the corresponding relation of first luma data and the corresponding relation of the described brightness and second luma data.
18. LCD according to claim 17, wherein said receiving trap are used for receiving described luma data stream with a frequency; Described data interlace device is used for described first brightness data stream staggered with the twice of described frequency with described second brightness data stream, offers described LCD to show described picture streams.
19. according to claim 17 described LCD, the corresponding relation of the wherein said brightness and first luma data is a default corresponding relation.
20. LCD according to claim 17, also comprise a color analyser, be used for measuring the brightness of described picture streams to adjust the corresponding relation of the described brightness and second luma data, so that the corresponding relation of described luma data stream and described picture streams meets gamma 1.8.
21. LCD according to claim 17, also comprise a color analyser, be used for measuring the brightness of described picture streams to adjust the corresponding relation of the described brightness and second luma data, so that the corresponding relation of described luma data stream and described picture streams meets gamma 2.2.
22. LCD according to claim 20, wherein said color analysis instrument comes the brightness of described picture streams is sampled obtaining a synthetic brightness as sample frequency with described frequency, and adjusts the corresponding relation of the described brightness and second luma data according to described synthetic brightness and gamma 1.8.
23. LCD according to claim 21, wherein said color analysis instrument comes the brightness of described picture streams is sampled obtaining a synthetic brightness as sample frequency with described frequency, and adjusts the corresponding relation of the described brightness and second luma data according to described synthetic brightness and gamma 2.2.
24. display packing according to claim 17, wherein said brightness is the identical luma data and the corresponding relation of brightness with the corresponding relation of first luma data and the corresponding relation of the described brightness and second luma data under a predetermined GTG value; On described predetermined GTG value, be the different luma data and the corresponding relation of brightness.
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| CN200710079999A CN101261813B (en) | 2007-03-06 | 2007-03-06 | A method for improving LCD display with black insertion technology |
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| CN103778897B (en) | 2014-01-28 | 2016-03-02 | 北京京东方显示技术有限公司 | A kind of image display control method and device |
| CN105825835B (en) * | 2015-07-29 | 2018-06-26 | 维沃移动通信有限公司 | A kind of method and electronic equipment for adjusting electronic equipment display brightness |
| CN107731200B (en) * | 2017-10-31 | 2019-09-17 | 武汉华星光电技术有限公司 | Improve the method and system of ghost in display picture |
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| EP0883103A1 (en) * | 1997-06-05 | 1998-12-09 | THOMSON multimedia | Direct view liquid crystal display with automatic colour adjustment |
| JP2001255853A (en) * | 2000-03-13 | 2001-09-21 | Sony Corp | Method and device for driving plasma address type liquid crystal display element |
| CN1455382A (en) * | 2002-03-20 | 2003-11-12 | 株式会社日立制作所 | Display device |
| CN1797527A (en) * | 2004-12-24 | 2006-07-05 | 群康科技(深圳)有限公司 | Method for driving LCD faceplate in active matrix |
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| EP0883103A1 (en) * | 1997-06-05 | 1998-12-09 | THOMSON multimedia | Direct view liquid crystal display with automatic colour adjustment |
| JP2001255853A (en) * | 2000-03-13 | 2001-09-21 | Sony Corp | Method and device for driving plasma address type liquid crystal display element |
| CN1455382A (en) * | 2002-03-20 | 2003-11-12 | 株式会社日立制作所 | Display device |
| CN1797527A (en) * | 2004-12-24 | 2006-07-05 | 群康科技(深圳)有限公司 | Method for driving LCD faceplate in active matrix |
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