CN101656054B - Over-drive unit and liquid crystal display system using the same - Google Patents
Over-drive unit and liquid crystal display system using the same Download PDFInfo
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- CN101656054B CN101656054B CN 200810210002 CN200810210002A CN101656054B CN 101656054 B CN101656054 B CN 101656054B CN 200810210002 CN200810210002 CN 200810210002 CN 200810210002 A CN200810210002 A CN 200810210002A CN 101656054 B CN101656054 B CN 101656054B
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Abstract
The invention discloses an over-drive unit, which comprises a value storage table data processing unit for finding a corresponding target value according to a target coordinate value. The value storage table data processing unit comprises the first and second storage units and an arithmetic unit. The first and second storage units store the first and second value storage tables for mapping a plurality of first coordinate values and a plurality of second coordinate values in a plurality of coordinate values to a plurality of first and second corresponding numerical values. The first and second coordinate values correspond to each other, and each second coordinate value is smaller than the corresponding first coordinate value. The arithmetic unit is used for finding the first and second corresponding numerical values in the first and second value storage tables, and obtaining the target numerical values by performing interpolation operations on the first and second corresponding numerical values. The invention also discloses a liquid crystal display system using the over-drive unit.
Description
Technical field
The present invention relates to a kind of over-drive unit, comprise a kind of value storage table data processing unit, and be particularly related to and a kind ofly have two or more and store different value storage table data storages unit, and can read simultaneously the value storage table data processing unit that value storage table data are wherein carried out the interpolation method computing.
Background technology
Because liquid crystal display (Liquid Crystal Display, LCD) has advantages of thin, the lightweight and low electromagnetic of volume, is widely used gradually in recent years.In the prior art, (Over Drive) means of overdriving have been used to promote GTG value (Gray Level) pace of change of liquid crystal molecule, do not catch up with the situation that required gray scale variation speed causes ghost with the display frame of avoiding liquid crystal display because of the GTG value pace of change of liquid crystal molecule.
The GTG value of picture was found out corresponding a plurality of GTG values of overdriving simultaneously before and after the tradition means of overdriving were responded by a plurality of value storage table (Look Up Table) that equate in fact of inquiry, and found out the overdrive GTG value corresponding with the GTG value of all front and back pictures via interpolation method (Interpolation) computing.For example the tradition means of overdriving store respectively four value storage table that equate in fact and find out simultaneously four corresponding GTG values of overdriving and carry out 4 interpolative operations in four storage unit.Yet how finding out preferred value storage table data storage method is one of this area direction of constantly making great efforts effectively to reduce the value storage table data volume and to reduce error that the GTG value of overdriving find produces because of the interpolation method computing.
Summary of the invention
The present invention relates to a kind of value storage table data processing unit, over-drive unit and use its liquid crystal display systems, it can improve the shortcoming that the tradition means of overdriving need arrange the inferior quality of the display frame that a plurality of value storage table that equate in fact cause higher memory cost, the GTG value of overdriving that finds causes the higher and liquid crystal display systems of its error because of the interpolation method computing effectively, can reduce that value storage table data volume, memory cost are lower, the error of the GTG value of overdriving that finds is less and the display frame quality of liquid crystal display systems advantage preferably and have in fact.
According to a kind of over-drive unit of the present invention, find out the corresponding GTG value of overdriving according to the previous GTG value in the previous picture frame picture with the present GTG value in the present picture frame picture.Over-drive unit comprises first, second, third, fourth storage unit and arithmetic element.The first storage unit stores the first value storage table, is used for shining upon a plurality of first extremely corresponding GTG value of overdriving of the present GTG value of a plurality of even numbers orderings in the previous GTG value of a plurality of even numbers orderings of previous GTG value and the present GTG value.The second storage unit stores the second value storage table, is used for the second extremely corresponding GTG value of overdriving of the previous GTG value of mapping even number ordering and the present GTG value of at present a plurality of odd numbers orderings of GTG value.The 3rd storage unit stores the 3rd value storage table, is used for shining upon the 3rd extremely corresponding GTG value of overdriving of previous GTG value and the present GTG value of even number ordering of a plurality of odd numbers orderings of previous GTG value.The 4th storage unit stores the 4th value storage table, the 4th GTG value of overdriving that the previous GTG value that is used for the map odd ordering and the present GTG value of odd number ordering are extremely corresponding.Arithmetic element is used for according to previous GTG value and present GTG value and finds out the first, second, third and the 4th correspondence GTG value of overdriving in first to fourth value storage table respectively, and it is carried out the interpolation method computing GTG value that obtains overdriving.
Propose a kind of liquid crystal display systems according to the present invention, comprise display panel, over-drive unit and data driver.Over-drive unit is used for finding out the corresponding GTG value of overdriving according to the previous GTG value of previous picture frame picture with the present GTG value in the present picture frame picture.Over-drive unit comprises first, second, third, fourth storage unit and arithmetic element.The first storage unit stores the first value storage table, is used for shining upon a plurality of first extremely corresponding GTG value of overdriving of the present GTG value of a plurality of even numbers orderings in previous GTG value and the present GTG value of a plurality of even numbers orderings of previous GTG value.The second storage unit stores the second value storage table, is used for the second extremely corresponding GTG value of overdriving of the previous GTG value of mapping even number ordering and the present GTG value of at present a plurality of odd numbers orderings of GTG value.The 3rd storage unit stores the 3rd value storage table, is used for shining upon the 3rd extremely corresponding GTG value of overdriving of previous GTG value and the present GTG value of even number ordering of a plurality of odd numbers orderings of previous GTG value.The 4th storage unit stores the 4th value storage table, the 4th GTG value of overdriving that the previous GTG value that is used for the map odd ordering and the present GTG value of odd number ordering are extremely corresponding.Arithmetic element is used for finding out the first, second, third and the 4th correspondence GTG value of overdriving in first to fourth value storage table respectively according to previous GTG value and present GTG value, and it is carried out the interpolation method computing GTG value that obtains overdriving.Data driver is coupled to over-drive unit and display panel, is used for receiving also driving display panel according to the GTG value of overdriving.
Propose a kind of value storage table data processing unit according to the present invention, be used for finding out corresponding target value according to the target coordinates value.Value storage table data processing unit comprises first, second storage unit and arithmetic element.First and second storage unit stores respectively first and second value storage table, and it is respectively applied to shine upon a plurality of First scale values a plurality of first and second numerical value extremely corresponding with a plurality of the second coordinates in a plurality of coordinate values.The mutual correspondence of first and second coordinate values and each second coordinate values are less than the First scale value of correspondence.Arithmetic element is used for finding out first and second corresponding numerical value in first and second value storage table respectively according to the target coordinates value, and first and second corresponding numerical value is carried out the interpolation method computing obtains target value.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperation accompanying drawing are elaborated.
Description of drawings
Fig. 1 illustrates the calcspar according to the liquid crystal display systems of one embodiment of the present invention;
Fig. 2 illustrates the detailed block diagram of the over-drive unit of Fig. 1;
Fig. 3 illustrates the over-drive unit of Fig. 2 with the equivalent value storage table of the map operation of execution;
Fig. 4 illustrates the first value storage table of the storage unit 22a storage of Fig. 2;
Fig. 5 illustrates the second value storage table of the storage unit 22b storage of Fig. 2;
Fig. 6 illustrates the 3rd value storage table of the storage unit 22c storage of Fig. 2;
Fig. 7 illustrates the 4th value storage table of the storage unit 22d storage of Fig. 2;
Fig. 8 illustrates another first value storage table of the storage unit 22a storage of Fig. 2;
Fig. 9 illustrates another second value storage table of the storage unit 22b storage of Fig. 2;
Figure 10 illustrates another the 3rd value storage table of the storage unit 22c storage of Fig. 2;
Figure 11 illustrates another the 4th value storage table of the storage unit 22d storage of Fig. 2;
Figure 12 A illustrates the error simulation result of the interpolation method computing of traditional means of overdriving;
Figure 12 B illustrates the error simulation result of the over-drive unit interpolation method computing of Fig. 2;
Figure 13 illustrates the calcspar according to the value storage table data processing unit of the present embodiment;
Figure 14 illustrates the value storage table data processing unit of Figure 13 with the equivalent value storage table of the map operation of execution;
Figure 15 illustrates the first value storage table of the storage unit 22a ' storage of Figure 13;
Figure 16 illustrates the second value storage table of the storage unit 22b ' storage of Figure 13.
Embodiment
The value storage table data processing unit of the present embodiment by special value storage table packet with the value storage table data storing in different storage unit, and read simultaneously and the value storage table data in these storage unit are carried out the interpolation method computing, to reach the memory data output that reduces storage unit and to reduce the effect of the data error that the interpolation method computing obtains.Next the situation that is applied to the over-drive unit in the liquid crystal display systems take the value storage table data processing unit of the present embodiment describes as example.
Please refer to Fig. 1, it illustrates the calcspar according to the liquid crystal display systems of the preferred embodiment of the present invention.Liquid crystal display systems 10 comprises: over-drive unit 20, data driver 30 and display panels 40.Driver element 20 is coupled to export with data driver 30 overdrives GTG value Vob to data driver 30.Data driver 30 comes outputting data signals SD1～SDn to drive display panels 40 according to the GTG value Vob that overdrives.And liquid crystal display systems 10 also comprises gate drivers 50, and it is used for output and scans signal Sc1～Scm to scan display panels 40.Wherein n and m are the natural number greater than 1.
Please refer to Fig. 2, it illustrates the detailed block diagram of the over-drive unit of Fig. 1.Over-drive unit 20 be used for previous GTG value Cob ' according to previous picture frame picture find with the present GTG value Cob of present picture frame picture and export the corresponding a plurality of excessively corresponding GTG value Vob that overdrives (Cob ', Cob).
Previous and the present GTG value Cob ' of the present embodiment and Cob be for example between 0～63, and previous, at present GTG value Cob ', Cob and the GTG value Vob that overdrives (Cob ', corresponding relation Cob) as shown in Figure 3.Previous and present GTG value Cob ' and Cob for example respectively every spacing GTG value 8 arrange the first scale (0,8,16 ..., 64) and the second scale (0,8,16 ..., 64).When previous and present GTG value Cob ' to be asked and Cob lay respectively between the second adjacent scale of two the first adjacent scales and two, the over-drive unit 20 of the present embodiment for example to these two first scales and mutual corresponding four of obtaining of the second scale overdrive GTG value Vob (Cob ', Cob) carry out the interpolation method computing obtain the corresponding GTG value Vob that overdrives (Cob ', Cob).
Over-drive unit 20 comprises storage unit 22a, 22b, 22c, 22d and arithmetic element 24.Storage unit 22a is used for storing the first value storage table, and it is used for even number the first scale overdrive GTG value extremely corresponding with even number the second scale of mapping graph 3, that is is corresponding first and second scale (0,16,32,48,64) to the corresponding GTG value of overdriving, as shown in Figure 4.
In the present embodiment, first and second corresponding previous GTG value scale Cp1 and Cp2 also for example are respectively in the first scale even number the first scale and odd number the first scale near previous GTG value Cob ', and the present GTG value scale Cn1 of first and second correspondence and Cn2 also for example are respectively in the second scale even number the second scale and odd number the second scale near present GTG value Cob.
For example, when previous and present GTG value Cob ' is respectively GTG value 3 and 4 with Cob, arithmetic element 24 respectively with the first scale 0 with 8 as first and second corresponding previous GTG value scale Cp1 and Cp2, and respectively with the second scale 0 with 8 as first and second corresponding present GTG value scale Cn1 and Cn2.
The over-drive unit 20 of the present embodiment also for example has temporary storage location 26, and it is used for receiving and storing all present GTG value Cob of present picture frame picture.And temporary storage location 26 also was used in the next sequential cycle, that is was to find out corresponding overdriving during the GTG value according to the GTG value in next and the next picture frame picture, exported present GTG value Cob, with as the previous GTG value Cob ' in the at this moment computing.
Four storage unit need be set in traditional means of overdriving store four value storage table that equate in fact, carry out interpolation with four GTG values of overdriving that the while access is corresponding.For example the tradition means of overdriving need arrange the equivalent value storage table that four storing memories store complete Fig. 3, that is are that the total amount of data value storage table that data volume is four times in first to fourth value storage table reaches the operation close in fact with the over-drive unit 20 of the present embodiment.So, the over-drive unit 20 of the present embodiment can effectively be improved tradition and overdrives in the means because repeatedly storing the identical value storage table data shortcoming higher with memory cost that cause that memory storage efficient is relatively poor, the value storage table data volume is higher, and has advantages of that the data volume of value storage table and memory cost are lower.
Over-drive unit 20 in the present embodiment is for applying to the situation of GTG value between 0～63, and aforesaid first and second scale is take GTG value 8 as spacing, but, the present invention's present scope with previous GTG value applicatory is not limited to GTG value 0～63, and the setting of first and second scale also is not limited to every spacing GTG value 8 and sets, and also can every spacing less than, set first and second scale greater than GTG value 8 or irregular spacing.
Though in the present embodiment only with the data volume of first to fourth value storage table in fact near 1/4th of the data volume of the equivalent value storage table data volume of Fig. 3, reach with the overdrive example that is operating as of means of tradition and explain and the over-drive unit 20 of the present embodiment is reduced in fact 1/4th value storage table by data volume, but the over-drive unit 20 of the present embodiment is not limited to and is reduced to 1/4th value storage table on the usage data quality entity and also can be other configurations.
For example, first to fourth value storage table changes to set first and second scale every spacing GTG value 2, has the data volume that equates in fact so that first to fourth value storage table is crossed four value storage table that configure in the section means with tradition, and is as shown in Figs. 8 to 11.So, the over-drive unit 20 of the present embodiment also can be found out the corresponding GTG value of overdriving according to first to fourth value storage table.
Yet, the spacing of dwindling first and second scale will be so that the GTG value Vob that overdrives of sampling (Cob ', Cob) quantity promotes accordingly, so, the over-drive unit 20 of the present embodiment can be dwindled first and second scale effectively when overdriving the value storage table that means usage data quality entity equates with tradition spacing, and then promote sampling the GTG value Vob that overdrives (Cob ', the Cob) precision of quantity and the GTG value Vob that overdrives that obtains.
Please refer to Figure 12 A and Figure 12 B, Figure 12 A illustrates the overdrive interpolation method arithmetic eror analog result of means of tradition, and Figure 12 B illustrates the error simulation result of the over-drive unit interpolation method computing of the present embodiment.Error GTG value among Figure 12 A and Figure 12 B represents that respectively tradition overdrives means and over-drive unit 20 compared to the error GTG value of the GTG value of correctly overdriving of directly finding out by the value storage table of 64*64 without the interpolation method computing and corresponding statistical magnitude.By Figure 12 A and Figure 12 B as can be known, during the value storage table that equates when the over-drive unit 20 of the present embodiment is overdrived means usage data quality entity with tradition on, the difference that the over-drive unit 20 of the present embodiment the calculates GTG value of overdriving has the quantity of less GTG value error and less error.
The value storage table data processing unit of the present embodiment is divided the equivalent value storage table of its pending previous, present and GTG value respective operations of overdriving, be divided into four sub-value storage table, and carry out the interpolation method computing to find corresponding target value according to before coming side by side in four value storage table, to find out four corresponding GTG values of overdriving with present GTG value.So, the value storage table data processing unit of the present embodiment can be improved the tradition means of overdriving effectively need arrange the value storage table of the higher and content of data volume for equating in fact, cause it to have the higher shortcoming of memory cost, and have advantages of can effectively reduce the value storage table data volume and memory cost lower.
In addition, the value storage table data processing unit of the present embodiment also can be overdrived in its value storage table data volume and tradition and effectively reduced its previous and present scale spacing of GTG value when the data volume of the value storage table in the means equates in fact, and overdrive GTG value quantity and the precision of lifting sampling.So, the value storage table data processing unit of the present embodiment also can be improved the shortcoming of inferior quality of the display frame of the higher and liquid crystal display systems of the GTG value error of overdriving that the tradition means of overdriving find effectively, and has advantages of that in fact the error display frame quality less and liquid crystal display systems of the GTG value of overdriving of output is better.
Though the situation that only is applied to the over-drive unit in the liquid crystal display systems take the value storage table data processing unit with two dimension in the present embodiment describes as example, yet, the value storage table data processing unit of the present embodiment is not limited to carries out the data processing to two-dimentional value storage table, and its application also is not defined as over-drive unit.
Please refer to Figure 13, it illustrates another calcspar according to the value storage table data processing unit of the present embodiment.The value storage table data processing unit 20 ' of the present embodiment comprises storage unit 22a ' and 22b ', and it stores respectively for mapping coordinate values (0,16,32,48,64) with (8,24,40,56) to corresponding numerical value (V0, V16, V32, V48, V64) with (V8, V24, V40, V56) first and second value storage table, extremely shown in Figure 16 such as Figure 14.
The value storage table data processing unit 20 ' of the present embodiment also comprises arithmetic element 24 ', and it is used for finding out with coordinate values scale C1 corresponding to coordinate values C and C2, producing numerical value V according to coordinate values scale C1 and C2 access memory cell 22a ' and 22b ' and in response to overdrive numerical value IOD1 ' and IOD2 ' via the operation close in fact with the arithmetic element 24 of above-described embodiment over-drive unit 20.
In sum, although the present invention with preferred embodiment openly as above, yet it is not for limiting the present invention.Those of ordinary skills in the situation that do not break away from the spirit and scope of the present invention, can make various modifications and change.Therefore, protection scope of the present invention is when being as the criterion with the claims limited range.
Claims (16)
1. an over-drive unit is found out the corresponding GTG value of overdriving according to the previous GTG value of the target in the previous picture frame picture with the present GTG value of target in the present picture frame picture, and described over-drive unit comprises:
The first storage unit, it stores the first value storage table, is used for shining upon a plurality of first extremely corresponding GTG value of overdriving of the present GTG value of a plurality of even numbers orderings in previous GTG value and a plurality of present GTG values of a plurality of even numbers orderings of a plurality of previous GTG values;
The second storage unit, it stores the second value storage table, a plurality of second GTG value of overdriving that the previous GTG value that is used for shining upon described a plurality of even number orderings and the present GTG value of a plurality of odd numbers orderings of described a plurality of present GTG values are extremely corresponding;
The 3rd storage unit, it stores the 3rd value storage table, is used for shining upon a plurality of the 3rd extremely corresponding GTG value of overdriving of previous GTG value and the present GTG value of described a plurality of even numbers orderings of a plurality of odd numbers orderings of described a plurality of previous GTG values;
The 4th storage unit, it stores the 4th value storage table, a plurality of the 4th GTG value of overdriving that the previous GTG value that is used for shining upon described a plurality of odd number orderings and the present GTG value of described a plurality of odd numbers orderings are extremely corresponding; And
Arithmetic element, it is used for according to the previous GTG value of described target and the present GTG value of target and finds out the first correspondence GTG value, the second correspondence GTG value, the 3rd correspondence GTG value and the 4th correspondence GTG value of overdriving of overdriving of overdriving of overdriving in described first to fourth value storage table respectively, and the described first to fourth correspondence GTG value of overdriving carried out the interpolation method computing, obtain the described GTG value of overdriving.
2. over-drive unit as claimed in claim 1, described arithmetic element is found out the first corresponding previous GTG value and the second corresponding previous GTG value according to the previous GTG value of described target, and finds out the first corresponding at present GTG value and the second corresponding at present GTG value according to the present GTG value of described target;
Wherein, the previous GTG value of described target is between described first and second corresponding previous GTG value, and the present GTG value of described target is between described first and second corresponding present GTG value.
3. as claimed in claim 2 over-drive unit, wherein said arithmetic element
Extremely described the first storage unit of the described first corresponding previous GTG value present GTG value corresponding to described first is provided, obtains described the first correspondence GTG value of overdriving with mapping;
Extremely described the second storage unit of the described first corresponding previous GTG value present GTG value corresponding to described second is provided, obtains described the second correspondence GTG value of overdriving with mapping;
Extremely described the 3rd storage unit of the described second corresponding previous GTG value present GTG value corresponding to described first is provided, obtains described the 3rd correspondence GTG value of overdriving with mapping;
Extremely described the 4th storage unit of the described second corresponding previous GTG value present GTG value corresponding to described second is provided, obtains described the 4th correspondence GTG value of overdriving with mapping.
4. over-drive unit as claimed in claim 3, wherein said arithmetic element are carried out access to obtain the described first to fourth correspondence GTG value of overdriving to described first to fourth storage unit in fact simultaneously.
5. over-drive unit as claimed in claim 3, wherein said arithmetic element is carried out access to two in described first to fourth storage unit in fact simultaneously, and in next sequential in the cycle in described first to fourth storage unit in addition two carry out access, to obtain respectively the described first to fourth correspondence GTG value of overdriving.
6. over-drive unit as claimed in claim 2, in the previous GTG value that wherein said first and second corresponding previous GTG value is respectively described a plurality of even number sequences and the previous GTG value of described a plurality of odd number sequences near the previous GTG value of the even number sequence of the previous GTG value of described target and the previous GTG value of odd number sequence, the present GTG value that the present GTG value sorted near the even number of the present GTG value of described target in the present GTG value that the present GTG value that described first and second corresponding GTG value at present is respectively described a plurality of even number sequences and described a plurality of odd numbers sort and odd number sort.
7. over-drive unit as claimed in claim 1 also comprises temporary storage location, is used for storing the present GTG value of described target, and exports the present GTG value of described target in the cycle in next sequential, with as the previous GTG value of described target.
8. over-drive unit as claimed in claim 1, wherein said arithmetic element is carried out 4 interpolative operations to the described first to fourth correspondence GTG value of overdriving, to obtain the described GTG value of overdriving.
9. liquid crystal display systems comprises:
Display panel;
Over-drive unit is found out the corresponding GTG value of overdriving according to the previous GTG value of the target in the previous picture frame picture with the present GTG value of target in the present picture frame picture, and described over-drive unit comprises:
The first storage unit, it stores the first value storage table, is used for shining upon a plurality of first extremely corresponding GTG value of overdriving of the present GTG value of a plurality of even numbers orderings in previous GTG value and a plurality of present GTG values of a plurality of even numbers orderings of a plurality of previous GTG values;
The second storage unit, it stores the second value storage table, a plurality of second GTG value of overdriving that the previous GTG value that is used for shining upon described a plurality of even number orderings and the present GTG value of a plurality of odd numbers orderings of described a plurality of present GTG values are extremely corresponding;
The 3rd storage unit, it stores the 3rd value storage table, is used for shining upon a plurality of the 3rd extremely corresponding GTG value of overdriving of previous GTG value and the present GTG value of described a plurality of even numbers orderings of a plurality of odd numbers orderings of described a plurality of previous GTG values;
The 4th storage unit, it stores the 4th value storage table, a plurality of the 4th GTG value of overdriving that the previous GTG value that is used for shining upon described a plurality of odd number orderings and the present GTG value of described a plurality of odd numbers orderings are extremely corresponding; And
Arithmetic element, be used for according to the previous GTG value of described target and the present GTG value of target and find out the first correspondence GTG value, the second correspondence GTG value, the 3rd correspondence GTG value and the 4th correspondence GTG value of overdriving of overdriving of overdriving of overdriving in described first to fourth value storage table respectively, and the described first to fourth correspondence GTG value of overdriving carried out the interpolation method computing, obtain the described GTG value of overdriving; And
Data driver, it is coupled to described over-drive unit and described display panel, and described data driver is used for receiving and driving described display panel according to the described GTG value of overdriving.
10. liquid crystal display systems as claimed in claim 9, described arithmetic element is found out the first corresponding previous GTG value and the second corresponding previous GTG value according to the previous GTG value of described target, and finds out the first corresponding at present GTG value and the second corresponding at present GTG value according to the present GTG value of described target;
Wherein, the previous GTG value of described target is between described first and second corresponding previous GTG value, and the present GTG value of described target is between described first and second corresponding present GTG value.
11. liquid crystal display systems as claimed in claim 10, wherein said arithmetic element provides respectively extremely the described first, second, third and the 4th storage unit of the described first corresponding previous GTG value at present GTG value corresponding to described first, the described first corresponding previous GTG value and the described second corresponding at present GTG value, the described second corresponding before GTG value and the described first corresponding present GTG value and the described second corresponding before GTG value and the described second corresponding present GTG value, obtains the described first, second, third and the 4th correspondence GTG value of overdriving with mapping.
12. liquid crystal display systems as claimed in claim 11, wherein said arithmetic element carry out access to described first to fourth storage unit in fact simultaneously, to obtain the described first to fourth correspondence GTG value of overdriving.
13. liquid crystal display systems as claimed in claim 11, wherein said arithmetic element is carried out access to two in described first to fourth storage unit in fact simultaneously, and next sequential in the cycle in described first to fourth storage unit in addition two carry out access, to obtain respectively the described first to fourth correspondence GTG value of overdriving.
14. liquid crystal display systems as claimed in claim 10, in the previous GTG value that wherein said first and second corresponding previous GTG value is respectively described a plurality of even number sequences and the previous GTG value of described a plurality of odd number sequences near the previous GTG value of the even number sequence of the previous GTG value of described target and the previous GTG value of odd number sequence, the present GTG value that the present GTG value sorted near the even number of the present GTG value of described target in the present GTG value that the present GTG value that described first and second corresponding GTG value at present is respectively described a plurality of even number sequences and described a plurality of odd numbers sort and odd number sort.
15. liquid crystal display systems as claimed in claim 9, wherein said over-drive unit also comprises:
Temporary storage location is used for storing the present GTG value of described target, and exports the present GTG value of described target in the cycle in next sequential, with as the previous GTG value of described target.
16. liquid crystal display systems as claimed in claim 9, wherein said arithmetic element is carried out 4 interpolative operations to the described first to fourth correspondence GTG value of overdriving, to obtain the described GTG value of overdriving.
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| TWI439991B (en) * | 2010-05-11 | 2014-06-01 | Mstar Semiconductor Inc | Overdrive apparatus and associated method for display system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004004629A (en) * | 2002-03-25 | 2004-01-08 | Sharp Corp | Liquid crystal display device |
| KR20060123951A (en) * | 2005-05-30 | 2006-12-05 | 삼성전자주식회사 | Apparatus and method for compensating gray scale, and display device having the same |
| TW200807386A (en) * | 2006-07-28 | 2008-02-01 | Chi Mei Optoelectronics Corp | Driving method and driving unit with timing controller |
| CN101165763A (en) * | 2006-10-16 | 2008-04-23 | 龙腾光电（控股）有限公司 | Display device drive circuit and liquid crystal display device |
-
2008
- 2008-08-22 CN CN 200810210002 patent/CN101656054B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004004629A (en) * | 2002-03-25 | 2004-01-08 | Sharp Corp | Liquid crystal display device |
| KR20060123951A (en) * | 2005-05-30 | 2006-12-05 | 삼성전자주식회사 | Apparatus and method for compensating gray scale, and display device having the same |
| TW200807386A (en) * | 2006-07-28 | 2008-02-01 | Chi Mei Optoelectronics Corp | Driving method and driving unit with timing controller |
| CN101165763A (en) * | 2006-10-16 | 2008-04-23 | 龙腾光电（控股）有限公司 | Display device drive circuit and liquid crystal display device |
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| CN101656054A (en) | 2010-02-24 |
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