CN100524432C - Dynamic accelerating drive device and method - Google Patents
Dynamic accelerating drive device and method Download PDFInfo
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- CN100524432C CN100524432C CNB2003101172863A CN200310117286A CN100524432C CN 100524432 C CN100524432 C CN 100524432C CN B2003101172863 A CNB2003101172863 A CN B2003101172863A CN 200310117286 A CN200310117286 A CN 200310117286A CN 100524432 C CN100524432 C CN 100524432C
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Abstract
This invention provides a dynamic overdrive device, which dynamically regulates a drive voltage applied on a GPU or a CPU of a LCD to increase the display effect of the dynamic image on said LCD. Said device makes users to assign drive paths via operational interface further to influence the variance of drive voltage signal applied on the GPU in the way of dynamic regulation acceleration drive.
Description
Technical field
The present invention relates to a kind of acceleration method of driving, refer to dynamically adjust the mode of acceleration driving LCD especially according to the ambient atmosphere environment.
Background technology
Because the compact characteristic of LCD makes that LCD little by little replaces CRT monitor in recent years.But, because the parameter that the gray scale response speed of LCD etc. are relevant with display effect and its residing ambient atmosphere environment of display for example temperature have close related, therefore, in order to pursue more high-quality display effect, certainly will also need to consider the residing environment of user.In general, under same type of drive,, will make the gray scale response speed 1ms that slows down if the every decline of temperature in the ambient atmosphere environment once.
See also Fig. 1, Fig. 1 is the synoptic diagram in original driving path.As shown in Figure 1, be meant from initial driving voltage to the driving voltage between the target drives voltage in this original driving path under T1 or the T2 temperature and change.Because, the T1 temperature is much larger than the T2 temperature, so this original driving path under the T1 temperature is just to reach target drives voltage in the t1 time, and this original driving path under the T2 temperature is could just reach target drives voltage with the t2 time greater than the t1 time.Because so, identical LCD is easy to influence its grey-tone image speed because of ambient atmosphere environment (especially temperature), making has the display effect of the great dynamic image of difference under T1 and T2 temperature.
By above description, believe that to be understood that its residing ambient atmosphere environment of LCD and its display effect have close related, so, during liquid crystal in driving LCD, certainly will the ambient atmosphere environmental factor to be taken into account.
At present in the industry, LG Philips adopts as in laid-open U.S. Patents US2003/0107546 on the 12nd publication number June in 2003 " driving the method and apparatus (method andapparatus for driving liquid crystal display) of LCD ", the ambient atmosphere environmental factor is taken into account, hereinafter to be referred as No. 0107546 patent.This No. 0107546 patent mainly is to utilize the residing temperature of temperature sensor perception LCD, and obtains suitable correcting mode according to this temperature in the corresponding tables of setting up in advance (ULT), and revises the output signal of dynamic image.
In addition, Samsung then adopts as in " LCD and its driving method (liquid crystaldisplay and a driving method thereof) " of laid-open U.S. Patents US2003/0098839 on the 29th publication number May in 2003, the ambient atmosphere environmental factor is taken into account, hereinafter to be referred as No. 0098839 patent.This No. 0098839 patent mainly is by with temperature, by the image quality and the related corrected parameter of the residing environment of display of user decision, and revises the output signal of dynamic image.
Above-mentioned two kinds of schemes that industry adopted all need just can revise the output of dynamic image by after the residing temperature of temperature inductor acquisition LCD.Yet this measure not only needs additionally to increase the cost of temperature inductor, depends on temperature variation especially unduly and inelastic method, and after all, the display effect of LCD is not exclusively relevant with temperature variation.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of dynamic acceleration drive unit and method, need not know under the residing temperature of LCD, quickens to drive LCD and dynamically adjust, and improves the display effect of dynamic image.
According to above-mentioned purpose, disclosed dynamic acceleration drive unit comprises a driving path and chooses the unit, to choose the unit be to be used to make a user to specify optimal driving path by an operation-interface and drive the path, and then influence the variation of this drive voltage signal that puts on this drawing process chip in the mode that dynamic adjustment quickens to drive.
Can be about the advantages and spirit of the present invention by following detailed Description Of The Invention and appended graphic being further understood.
Description of drawings
Fig. 1 is the synoptic diagram in original driving path.
Fig. 2 is the synoptic diagram in the optimal driving of the present invention path.
Fig. 3 is the synoptic diagram of drive unit of the present invention and LCD.
Fig. 4 is first kind of synoptic diagram of dynamically adjusting the mode of quickening to drive of the present invention.
Fig. 5 is second kind of synoptic diagram of dynamically adjusting the mode of quickening to drive of the present invention.
Among the figure
10 dynamically quicken drive unit 12 LCD
13 drawing process chip 14 drive path unit
16 drive the path chooses unit 18 operation-interfaces
19 users, 30 test dynamic image districts
32,40,42 adjust driving district 34 execute keys
Specific implementation method
See also Fig. 2, Fig. 2 is the synoptic diagram in the optimal driving of the present invention path.As shown in Figure 2, optimal driving path is the original driving path that changes in order dynamically to adjust the mode of quickening driving under the T1 temperature under the T1 temperature.Its purpose is, makes under uniform temp T1, and it is few to adopt optimal driving path to reach the required time t1 in the more original driving path of the required time t3 of target drives voltage.Same reason, when being T2 as if the temperature in the residing ambient atmosphere environment of LCD, the present invention will similarly adopt dynamic adjustment to quicken the mode that drives and reaching target drives voltage as time t3 when temperature T 2.
Though, the acquisition in the optimal driving path that the present invention is mentioned, mainly with the ambient atmosphere environment in temperature have close related.But if just merely require the user to import or alternate manner is obtained its residing temperature or other ambient atmosphere environmental baseline, not enough elasticity then can seem.Therefore, the present invention be by an operation-interface provided at the dynamic image of dynamically adjusting the front and back of quickening the driving path that mode produced that drives for user's reference, make the user and to adjust back dynamic image (can be two dynamic images or more than) and to specify out optimal driving path according to dynamic image before adjusting.So apparatus and method provided by the present invention not only need not known the residing ambient atmosphere environmental baseline of LCD, and can with user's interaction after more suitably find out optimal driving path, and then improve the display effect of dynamic image.Specify that at this so-called optimal driving path is the driving path that is determined for after disclosed device and the user's interaction.Below will explain two kinds of disclosed modes of dynamically adjusting the acceleration driving, and specify optimal driving route method.
See also Fig. 3, Fig. 3 is the synoptic diagram of drive unit of the present invention and LCD.As shown in Figure 3, dynamic acceleration of the present invention (overdrive) drive unit 10 is that the driving voltage that is applied in drawing process chip (GPU) 13 by dynamically being adjusted at LCD 12 or the central processing unit (CPU) improves the display effect of a dynamic image on LCD 12.Further comprised the driving path and chosen unit 16 and dynamically quicken drive unit 10.The mode of quickening to drive by information that operation-interface 18 provided and with two kinds of arbitrary dynamic adjustment as user 19, specify optimal driving path and make the driving path choose unit 16, and then influence is applied to the variation of the drive voltage signal of drawing process chip 13.And drive path unit 14 is to be used to store predefined many to drive the path.Below one illustrate that two kinds are dynamically adjusted the mode of acceleration driving and the relevances of the information that operation-interface 18 is provided nearly with going on foot.
See also Fig. 4, Fig. 4 is first kind of synoptic diagram of dynamically adjusting the mode of quickening to drive of the present invention.Operation-interface 18 shown in the 3rd figure further comprises adjusts driving district 32, test dynamic image district 30 and execute key 34, as shown in Figure 4.Adjusting and driving the driving path of distinguishing 32 spring that comprised, summer, fall and winter is to obtain from driving path unit 14 as shown in Figure 3.Therefore, adjust driving district 32 is used to make user 19 shown in the 3rd figure can select the driving path of one of them by adjusting order among the driving path of spring, summer, fall and winter.Above-mentioned driving path is to be driven path determining program and to define, and is respectively according to the ambient atmosphere environment of spring, summer, fall and winter and pre-defined many driving path that corresponds to the ambient atmosphere environment respectively and drive path determining program.Test dynamic image district 30 comprises the preceding dynamic image of adjustment at least and adjusts the back dynamic image, and wherein, dynamic image shows that according to user 19 selected driving paths this two dynamic image is the main information that operation-interface 18 is provided after the adjustment.And execute key 34 is to be used for after dynamic image user 19 determines optimal driving path according to dynamic image before adjusting with after adjusting, to set system value for behind this optimal driving path, make before adjusting all optimal for this reason driving path, LCD 12 employed driving paths next time.
Because the image that dynamic image is presented before adjusting is the original driving path under the T1 temperature according to as shown in Figure 2.Illustrate, the image that dynamic image is presented after adjusting is to send adjustment order at operation-interface 18 by " summer " driving path that selection adjustment drives in the district 32 according to user 19.But, because the user is autumn (T1 temperature just) 19 residing seasons at present, so, user 19 before selected " summer " drives path and inappropriate, therefore, user 19 can observe out from test dynamic image district 30, compares with dynamic image before the adjustment according to dynamic image after driving the shown adjustment in path this " summer ", effect is not relatively good, even poorer.In order to find out more suitable driving path, user 19 sends the adjustment order by " autumn " driving path that selection adjustment drives in the district 32 once more at operation-interface 18.At this moment, owing to correctly select suitable driving path, therefore observe out in test dynamic image district 30, compare with dynamic image before the adjustment according to dynamic image after driving the shown adjustment in path this " autumn ", effect is obviously preferable, in other words, drive the path this " autumn " and be as shown in Figure 2 optimal driving path under the T1 temperature.Then, user 19 becomes original driving path with this optimal driving path setting, makes optimal for this reason driving path, the employed backward driving of LCD 12 path.Then, before introducing another mode that dynamically adjustment is quickened to drive, will illustrate at first below how drive driving path stored in the path unit 14 defines by driving path determining program.
Driving path determining program of the present invention is, at first, the image parameters value difference of measuring between the frame (frame) that has temporal forward-backward correlation in the dynamic image of being play on the LCD 12 as the luminance parameter value of pixel is different, and learn LCD with respect to as temperature the driving path.In other words, emulation LCD 12 residing ambient atmosphere environment are spring, summer, fall and winter, and find out the original driving path in (under the T1 temperature) in the fall shown in Figure 2 and winter (T2 temperature) etc.
Behind the original driving path that obtains default several ambient atmosphere environment, according to the driving path that recalculates the display effect of lifting dynamic image on LCD under the atmospheric environment around with respect to this drivings path of ambient atmosphere environment, in other words, recalculating can be in optimal driving path under the autumn shown in the 2nd figure (T1 temperature).Specify at this, because each regional seasonal climate and inequality, therefore, can also be at the pre-defined driving path that drives path unit 14 that is stored in of the four seasons in each different area.
See also Fig. 5, Fig. 5 is second kind of synoptic diagram of dynamically adjusting the mode of quickening to drive of the present invention.As shown in Figure 5, it is that second kind shown in the 4th figure dynamically adjusted the mode that drives quickened that second kind of the present invention dynamically adjusts the mode of quickening to drive, and many adjustment drives district 40 and 42.Therefore, first kind of mode of quickening to drive with second kind of dynamic adjustment only is that user 19 adopts different adjustment drivings to distinguish and send and adjusts order, but similarly also can adjust order and produce new driving path, and dynamic image is driving path according to this generation after the adjustment that is presented in test dynamic image district 30 according to this.Below will illustrate adjust to drive between the district 32,40 and 42 possibility in collocation and adjust and drive district 40 and 42 and how to influence and adjust the back dynamic image.
As shown in Figure 5, adjustment drives district 32 and the nonessential while is present on the operation-interface 18 simultaneously with adjustment driving district 40 and 42, adjusts to drive and distinguishes the 40 and 42 driving paths that can interact and be produced, and also can be described as presenting of the adjustment back dynamic image that interacts.Certainly, adjust driving district 40 and 42 and can separately exist on the operation-interface 18 yet, and the driving path that does not interact and produced does not interact yet and adjusts presenting of back dynamic image, but influence adjusted result individually.
The present invention dynamically adjusts mode and first kind of difference of dynamically adjusting the mode maximum of quickening to drive of quickening to drive for second kind and is, second kind dynamically adjust the mode of quickening to drive do not need by drive path determining program in driving path unit 14 in advance according to the driving path of many of ambient atmosphere environment definition, drive district 32 by the adjustment on the operation-interface 18 again and adjust order to select wherein a mode that drives the path to send.Second kind is dynamically adjusted the mode of quickening to drive then is to drive district 40 by the adjustment on the operation-interface 18 to give adjusting order and driving district 42 by the adjustment on the operation-interface 18 in the mode of increases/minimizings and give adjustment order in the mode of input parameter value.
In addition, adjust driving district 40 can drive district 32 and cooperate and make to adjust and drive district's 40 influence adjustment and drive and distinguish the 32 driving paths that produced with adjusting, in other words, in such cases, adjustment drives district 40 can influence the 32 driving paths that produced, adjustment driving district a little with spending, so that reach perfect adjustment.
In sum, a kind of dynamic acceleration drive unit provided by the present invention and method, can dynamically adjust the mode of acceleration driving or the mode of mutual collocation by above two kinds of disclosing, and dynamically adjust acceleration driving LCD, and the display effect of raising dynamic image.Compared with No. 0107546 patent of prior art and technology contents that No. 0098839 patent disclosed, the present invention does not need temperature sensor, but by being provided at before the adjustment in the test dynamic image district 30 dynamic image and adjusting the back dynamic image, and allow the user specify out optimal driving path.So, disclosed dynamic acceleration drive unit and method be we can say and not only considered Temperature Influence, considered any factor that will influence the display effect of LCD more, quickened to drive LCD, improved the display effect of dynamic image and dynamically adjust.
By the detailed description of above preferred embodiment, hope can be known description feature of the present invention and spirit more, and is not to come scope of the present invention is limited with the above-mentioned preferred embodiment that is disclosed.On the contrary, its objective is that hope can contain in the category of claim of being arranged in of various changes and tool equivalence institute of the present invention desire application.
Claims (12)
1. one kind is dynamically quickened drive unit, this device improves the display effect of a dynamic image on this LCD by a driving voltage that is applied in the drawing process chip that dynamically is adjusted at a LCD, it is characterized in that this device comprises at least:
One drives the path chooses the unit, it is to be used to make a user can quicken the mode of driving by an operation-interface with dynamic adjustment that the unit is chosen in this driving path, and specify one optimal one to drive the path, and then influence is applied to the variation of this drive voltage signal of this drawing process chip
Wherein this driving path is meant from the driving voltage between initial driving voltage to the target drives voltage and changes.
2. dynamic acceleration drive unit as claimed in claim 1 is characterized in that this device further comprises:
One drives path unit, this driving path unit is to be used to store predefined many to drive the path, this driving path is driven path determining program by one and defines, and this driving path determining program is according to temperature and pre-defined this driving path of many that corresponds to this temperature respectively.
3. dynamic acceleration drive unit as claimed in claim 2 is characterized in that, this driving path determining program comprises the following step:
An image parameters value difference of measuring an interframe that has temporal forward-backward correlation in this dynamic image on this LCD is different, and learns this LCD this driving path with respect to this temperature; And
Can be according to recalculating in this driving path of the display effect of this dynamic image of lifting on this LCD under this temperature with respect to this drivings path of this temperature.
4. dynamic acceleration drive unit as claimed in claim 3 is characterized in that this image parameters value is meant the luminance parameter value of pixel.
5. dynamic acceleration drive unit as claimed in claim 1 is characterized in that this operation-interface further comprises:
One test dynamic image district, this test dynamic image district comprise one at least and adjust a preceding dynamic image and an adjustment back dynamic image, and the image that dynamic image is presented before this adjustment is based on this original driving path;
One adjust to drive the district, and what this adjustments drove that the district is based on that a user gives one adjusts order and produce this new drivings path, and the image that dynamic image is presented after this adjustment is based on this new driving path that this adjustment order is produced; And
One execute key, this execute key are when being used for before this user is according to this adjustment dynamic image and this adjustments afterwards dynamic image determining this optimal this driving path, and this optimal this driving path setting is become this this original driving path.
6. the described dynamic acceleration drive unit of claim 2 is characterized in that this operation-interface further comprises:
One test dynamic image district, this test dynamic image district comprise one at least and adjust a preceding dynamic image and an adjustment back dynamic image, and the image that dynamic image is presented before this adjustment is based on this original driving path;
One adjusts the driving district, this adjustment drives the district can adjust order and drive this drivings path of selecting one of them in the paths stored many of this drivings path unit one user by one, and the image that dynamic image is presented after this adjustment is based on this adjustment and orders selected this driving path; And
One execute key, this execute key are to be used to make this user to determine this optimal this driving path according to dynamic image before this adjustment and this adjustment back dynamic image, and this optimal this driving path setting is become this this original driving path.
7. dynamic acceleration driving method, this method is to improve the display effect of a dynamic image on this LCD by a driving voltage that is applied in the drawing process chip that dynamically is adjusted at a LCD, this method comprises at least:
Specify one optimal one to drive the path in the mode that dynamic adjustment quickens to drive, and then influence the variation of this drive voltage signal that is applied to this drawing process chip,
Wherein this driving path is meant from the driving voltage between initial driving voltage to the target drives voltage and changes.
8. dynamic acceleration driving method as claimed in claim 7 is characterized in that, a driving path determining program is according to a temperature and pre-defined this driving path of many that corresponds to this temperature respectively.
9. dynamic acceleration driving method as claimed in claim 8 is characterized in that, this driving path is driven path determining program by one and defines, and this driving path determining program comprises the following step:
An image parameters value difference of measuring an interframe that has temporal forward-backward correlation in this dynamic image on this LCD is different, and learns this LCD this driving path with respect to temperature; And
Can be according to recalculating in this driving path of the display effect of this dynamic image of raising on this LCD under this temperature with respect to this drivings path of this temperature.
10. dynamic acceleration driving method as claimed in claim 9 is characterized in that, this image parameters value is meant the luminance parameter value of pixel.
11. dynamic acceleration drive unit as claimed in claim 7 wherein specifies this optimal this driving path to comprise:
Show that according to this original driving path one adjusts preceding dynamic image;
Order this new driving path that produces according to the adjustment that a user gives, and show that one adjusts the back dynamic image; And
When afterwards dynamic image determines this optimal this driving path according to dynamic image before this adjustment and this adjustments, this optimal this driving path setting is become this this original driving path.
12. dynamic acceleration drive unit as claimed in claim 8 is characterized in that, specifies this optimal this driving path to comprise:
Show that according to this original driving path one adjusts preceding dynamic image;
Foundation one is adjusted order and is driven this driving path of selecting one of them paths from predefined many;
Show that according to this selected this driving path of adjustment order one adjusts the back dynamic image; And
When afterwards dynamic image determines this optimal this driving path according to dynamic image before this adjustment and this adjustments, this optimal this driving path setting is become this this original driving path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101172863A CN100524432C (en) | 2003-12-10 | 2003-12-10 | Dynamic accelerating drive device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101172863A CN100524432C (en) | 2003-12-10 | 2003-12-10 | Dynamic accelerating drive device and method |
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| Publication Number | Publication Date |
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| CN1627352A CN1627352A (en) | 2005-06-15 |
| CN100524432C true CN100524432C (en) | 2009-08-05 |
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| CNB2003101172863A Expired - Fee Related CN100524432C (en) | 2003-12-10 | 2003-12-10 | Dynamic accelerating drive device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2077547A1 (en) * | 2007-12-31 | 2009-07-08 | TPO Displays Corp. | Display driver method and apparatus |
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