CN105825822B - The control method of display device and its again refreshing frequency - Google Patents
The control method of display device and its again refreshing frequency Download PDFInfo
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- CN105825822B CN105825822B CN201510001655.5A CN201510001655A CN105825822B CN 105825822 B CN105825822 B CN 105825822B CN 201510001655 A CN201510001655 A CN 201510001655A CN 105825822 B CN105825822 B CN 105825822B
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Abstract
The present invention provides a kind of display device and its again control method of refreshing frequency, wherein the step of control method of refreshing frequency includes again：The display picture that segmented display device is shown is that most height show picture；The corresponding multiple patterns of picture, which are shown, according to son corresponds to the sub majority for showing picture refreshing frequency requirements again respectively to calculate；And the refreshing frequency again of display picture is calculated according to refreshing frequency requirements again, so as to according to dispaly state dynamic adjustment refreshing frequency again, to save power consumption.
Description
Technical field
The present invention relates to a kind of display device and the control methods of its refreshing frequency again, and in particular to one kind according to
The display device and its control method of refreshing frequency again of refreshing frequency are controlled again according to the dispaly state of display device.
Background technology
With the progress of electronic technology, consumer electrical product tool indispensable in having become for people's lives.It is good to provide
Good man-machine interface, the display device of high-quality is configured on consumer electrical product also becomes a trend.
Now, liquid crystal display device is a kind of welcome display device.Liquid crystal display device is a kind of by controlling liquid
Crystalline substance overturning state come execute display action display device.Wherein, by liquid crystal because of the time of the fixed-bias transistor circuit applied
The phenomenon that giving birth to polarization too long, so, the bias voltage that timing generation reversion is provided for liquid crystal is necessary action.This is partially
The reversion of piezoelectricity pressure acts, frequency limited in cannot be realized by human eye and cannot be too low, once reversal frequency is too low, meeting
The phenomenon that generating image flicker (flicker).
Occur to avoid the phenomenon that image flicker however, being acted according to high-frequency liquid crystal reversion, can so cause compared with
More power consumption.Therefore, in the art, it will usually aobvious using being used as close to mains frequency (such as 50 or 60Hz)
The refreshing frequency again of diagram picture.
Invention content
The present invention provides a kind of display device and its again control method of refreshing frequency, can be adjusted according to dispaly state dynamic
Refreshing frequency again, to save power consumption.
The control method of the refreshing frequency again of the present invention is suitable for a display device, including：What segmented display device was shown
Show that picture is that most height show picture；The corresponding multiple patterns of picture are shown according to son to calculate corresponding son respectively
Show a refreshing frequency requirements again of the majority of picture；And picture is shown to calculate display according to refreshing frequency requirements again
The refreshing frequency again in face.
In one embodiment of this invention, above-mentioned display picture is static status display picture.
In one embodiment of this invention, above-mentioned pattern is respectively provided with different majority grayscale values.
In one embodiment of this invention, above-mentioned foundation shows that the corresponding pattern of picture is right respectively to calculate
The step of requirements of refreshing frequency again for answering sub- display picture includes：The corresponding grayscale value of calculating son display picture, and according to
The refreshing frequency requirements again that corresponding son respectively shows picture are obtained according to grayscale value；And for refreshing frequency requirements again into
Row arithmetical operation is to obtain refreshing frequency again.
In one embodiment of this invention, above-mentioned to show that the corresponding pattern of picture corresponds to respectively to calculate according to son
Son shows that the step of requirements of refreshing frequency again of picture includes：It calculates son and shows the corresponding grayscale value of picture, and be directed to
Grayscale value carries out arithmetical operation to obtain statistics grayscale value；And foundation counts grayscale value to obtain refreshing frequency again.
In one embodiment of this invention, above-mentioned to show that the corresponding pattern of picture corresponds to respectively to calculate according to son
Son shows that the step of requirements of refreshing frequency again of picture includes：Set multiple setting patterns, wherein setting pattern corresponds to respectively
A refreshing frequency setting value again；And it is compared and uses with setting pattern for the corresponding each pattern of each sub- display picture
Select again one of refreshing frequency setting value for the refreshing frequency requirements again of corresponding each sub- display picture.
In one embodiment of this invention, then the control method of refreshing frequency further includes：Show that picture exists according to son respectively
Show that the region at the place of picture determines the majority weighted value of corresponding son display picture respectively；And according to refreshing frequency again
Requirements calculate refreshing frequency again with corresponding weighted value.
In one embodiment of this invention, the display picture that above-mentioned segmented display device is shown is multiple sub- display pictures
The step of include：Set cut zone；And the display picture shown according to cut zone segmented display device is that son shows picture
Face.
In one embodiment of this invention, above-mentioned son shows that picture contacts with each other, and neighbouring son shows that picture is not mutual
Overlapping or part are overlapped.
In one embodiment of this invention, the shape of above-mentioned cut zone is rectangle, circle or irregular shape, cut section
The size in domain is all identical, not exactly the same or all differ.
In one embodiment of this invention, then the control method of refreshing frequency further includes：Backlight according to display device is bright
It spends to obtain frequency adjusted value；And according to the frequency adjusted value downgrade this again refreshing frequency with generate one downgrade refresh again frequency
Rate.
The display device of the present invention includes display panel and controller.Display panel, which generates, shows picture, controller coupling
Connect display panel.Controller segmentation shows that picture is that most height show that picture, controller show picture difference according to son respectively
Corresponding multiple patterns calculate corresponding son respectively and show the corresponding multiple refreshing frequency requirements again of picture, controller and foundation
Again refreshing frequency requirements come calculate display show picture refreshing frequency again.
Based on above-mentioned, the present invention shows pictures by that will show that picture divides into most height, and analyzes sub- display picture
Pattern calculate suitable refreshing frequency again.That is, the refreshing frequency again of the present invention can be shown according to shown
Show that picture is adjusted into Mobile state, achievees the purpose that save power consumption.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and it is detailed to coordinate attached drawing to make
Carefully it is described as follows.
Description of the drawings
Fig. 1 is the flow chart of the control method of the refreshing frequency again of one embodiment of the invention；
Fig. 2A~Fig. 2 C be respectively multiple sub- display picture segmentations actions it is more when embodiment schematic diagram；
Fig. 3 A correspondence figures of refreshing frequency requirements for grayscale value and again；
Fig. 3 B are the schematic diagram of multiple setting patterns of the embodiment of the present invention；
Fig. 4 A are the schematic diagram of the calculation of the refreshing frequency again of the display picture of the embodiment of the present invention；
Fig. 4 B are the schematic diagram of the weighted value distribution map of the embodiment of the present invention；
Fig. 5 is the relational graph of the refreshing frequency again and backlight illumination in the embodiment of the present invention；
Fig. 6 is the schematic diagram of the display device of one embodiment of the invention.
Reference sign：
S110~S130：The rate-determining steps of refreshing frequency again；
210~230,400：Show picture；
211,221,231,411~4MN：Son shows picture；
321~327：Set pattern；
WTB：Weighted value distribution map；
RG1：Display area；
WRG1：Region；
600：Display device；
610：Display panel；
620：Controller.
Specific implementation mode
Fig. 1 is please referred to below, and Fig. 1 is the flow chart of the control method of the refreshing frequency again of one embodiment of the invention.Wherein,
The present embodiment is to be detected for the display picture of display device, and use and carry out display picture refreshing frequency setting is dynamic again
Make.In step s 110, it is split for the display picture shown by display device, will show that picture is divided into multiple sons
Show picture.Above-mentioned display picture is static status display picture.
It is divided into the action details of multiple sub- display pictures about display picture, Fig. 2A~Fig. 2 C, Fig. 2A please be respectively refer to
~Fig. 2 C be respectively multiple sub- display picture segmentations actions it is more when embodiment schematic diagram.First using Fig. 2A as example, wherein
The cut zone of rectangle is set, and multiple sub- display pictures 211 are partitioned on display picture 210 by cut zone.Its
In, in present embodiment, sub- display picture 211 is arranged according to array way on display picture 210, and adjacent son shows picture
211 contact with each other but do not overlap, and are closely spaced on display picture 210.
In addition, in the embodiment of Fig. 2 B, then cut zone is set as a border circular areas.And by cut zone come
The son that multiple original shapes are partitioned on display picture 220 shows picture 221.In the present embodiment, adjacent son shows picture 221
It contacts with each other but does not overlap, specifically, adjacent son shows that picture 221 is arranged in display picture in a manner of external each other
On face 210.
In the embodiment of Fig. 2 C, cut zone equally is set as a border circular areas.And by cut zone come aobvious
Show that the son that multiple original shapes are partitioned on picture 230 shows picture 231.Different with Fig. 2 B, the adjacent son of Fig. 2 C shows picture
Face 231 contacts with each other and is partially overlapped with each other.
It is noted that the size of cut zone can be carried out according to the recognized display area size of human eye institute
Setting, and the limitation that the shape of cut zone is not certain, except shown in Fig. 2A~Fig. 2 C rectangle and it is round in addition to, can also be it
His rule or irregular shape.
For example bright herein, if setting the shape of cut zone as rectangle, and the size of cut zone is set as 11
When the pixel of pixel × 11, if human eye can be found that the son being partitioned into according to the cut zone so planned shows the figure of picture
As when can flicker, then needing to change the size for setting cut zone as 10 pixel × 10 pixels, and make human eye that can not find
Flicker state according to the sub image for showing picture that the cut zone so planned is partitioned into.
In addition, on display picture, generate all sons show picture cut zone size can it is all identical, can be with
It is not exactly the same or can also all differ.In simple terms, it carries out son for display picture fringe region and shows picture
When segmentation, the size of used cut zone can be first size, and carry out sub- display for display picture central area
When the segmentation of picture, the size of used cut zone can be the second size, and first size therein can be more than second
Size.
Please referring again to Fig. 1, after completing step S110, then, in the step s 120, multiple sub- display pictures are found out
The corresponding multiple patterns of institute, wherein above-mentioned multiple patterns are respectively corresponding to multiple refreshing frequency requirements again.By upper
Sub- display picture, pattern and the correspondence between refreshing frequency requirements again are stated, above-mentioned multiple sub- display pictures can be found out again
The corresponding refreshing frequency requirements again of face institute.
About the implementation detail of step S120, Fig. 3 A, Fig. 3 A refreshing frequency requirements for grayscale value and again are please referred to
Correspondence figure.Wherein, the pattern of above-mentioned sub- display picture can be the grayscale value of sub- display picture.It is aobvious by obtaining each height
Show the grayscale value of picture, and coordinates grayscale value shown in Fig. 3 A and again the correspondence figure of refreshing frequency requirements, Ke Yijin
One step obtains each height and shows the corresponding refreshing frequency requirements again of picture.And in figure 3 a, the relatively advanced grayscale value of grayscale value
Relatively low son shows that picture, the required requirements of refreshing frequency again are relatively low.And the son with moderate grayscale value is aobvious
Show picture, then needs higher refreshing frequency requirements again.Represent grayscale value as example using 8 bits, grayscale value between 96~
160 son shows that picture needs the relatively high requirements of refreshing frequency again (about 55Hz), the son of remaining grayscale value to show picture
Then need relatively low refreshing frequency requirements again.
About relational graph shown in Fig. 3 A, the susceptibility of image gray-scale level value can be set according to human eye.Wherein, human eye
Vision for moderate grayscale value son show picture it is more sensitive, it is therefore desirable to the relatively high requirements of refreshing frequency again to avoid
Human eye experiences the phenomenon that film flicker.Opposite, human eye vision shows that picture is more slow for the son of height, low grayscale value
It is blunt, therefore relatively low refreshing frequency requirements again can be used.
In addition, the implementation detail about step S120, can refer to Fig. 3 B, wherein Fig. 3 B are the multiple of the embodiment of the present invention
Set the schematic diagram of pattern.Wherein, it sets pattern 321~setting pattern 327 and corresponds to that multiple height are different to be refreshed again respectively
Frequency setting value.Wherein, setting pattern 321 is that pure color shows picture；It is that laterally gradually layer shows picture to set pattern 322；Setting
Pattern 323 is dark bottom horizontal stripe picture；Setting pattern 324 is horizontal stripe picture of putting one's cards on the table；Set pattern 325~setting pattern 327
The picture after being rotated by 90 ° of pattern 322~setting pattern 324 will respectively be set.
In the setting pattern 321 shown in Fig. 3 B~setting pattern 327, wherein corresponding setting pattern 321, setting pattern
322 and the son of setting pattern 323 show that picture corresponds to higher refreshing frequency setting value again, and it is corresponding to setting pattern 325
Son show that picture corresponds to time high refreshing frequency setting value again, and it is corresponding to setting pattern 324, setting pattern 326, setting figure
The son of sample 327 shows that picture can then be corresponded to lower refreshing frequency setting value again.
Pattern 321~setting pattern 327 is set by the pattern of sub- display picture to be compared, and can select to show with son
The corresponding refreshing frequency again of the similar setting pattern of the pattern of picture (one of setting pattern 321~setting pattern 327)
Setting value is using as its refreshing frequency requirements again.
The above-mentioned setting value of refreshing frequency again about corresponding to each pattern can be according to human eye vision for various display patterns
Susceptibility set, and it is merely multiple examples that pattern is set shown in Fig. 3 B, not to limit scope of the invention, is made
User can increase or decrease the type of setting pattern, not certain limitation according to needing.
Then, it please referring again to Fig. 1, in step s 130, is then needed according to multiple refresh again obtained in step S120
Evaluation is suitable for showing the refreshing frequency again of picture to calculate.Wherein it is possible to execute calculation for refreshing requirement value again is obtained
Art operation obtains refreshing frequency again.It is specifically bright, when showing the grayscale value of picture using son as when its pattern, Ke Yixuan
The refreshing frequency again that the wherein corresponding higher requirements of refreshing frequency again are used as display picture is selected, alternatively, also can be according to again
The average value of refreshing requirement value is used as the refreshing frequency again of display picture.Furthermore all sons can also be calculated and show picture
Grayscale value carry out arithmetical operation to obtain statistics grayscale value, such as calculate the average value of grayscale value using as statistics grayscale
Value, then find out grayscale value the corresponding requirements of refreshing frequency again of average value be used as display picture refreshing frequency again.
The mode of the calculating of arithmetical operation is carried out above by average value, can also be changed to using mode be foundation
Mode calculates.
About the implementation detail of step S120, Fig. 4 A are please referred to, Fig. 4 A are brushing again for the display picture of the embodiment of the present invention
The schematic diagram of the calculation of new frequency.Wherein, display picture 400 includes 411~4MN of multiple sub- display pictures, wherein corresponding
The value of refreshing requirement again of 411~4MN of each sub- display picture is again one of refreshing requirement value A~G.For example bright, then
Refreshing requirement value A~G is sequentially 55Hz, 50Hz, 45Hz, 40Hz, 35Hz, 30Hz and 25Hz respectively.Implement in the present invention one
In mode, son whole in display picture 400 can be selected to show the highest in the corresponding refreshing frequencys again of 411~4MN of picture
It is worth the refreshing frequency again as display picture 400.In the present embodiment, then it is to select again refreshing requirement value A (55Hz) with work
To show the refreshing frequency again of picture 400.
On the other hand, the schematic diagram for the weighted value distribution map that Fig. 4 B, Fig. 4 B are the embodiment of the present invention is please referred to.Weighted value
Distribution map WTB is corresponding with display picture 400, wherein the region WRG1 of weighted value distribution map WTB corresponds to display picture 400
Display area RG1.Wherein, in figure 4b, the central display area (display area RG1) of display picture 400 has higher power
Weight values (such as 100%), and the display area (region outside the RG1 of display area) of surrounding then have lower weighted value (such as
70%~85%).
In embodiments of the present invention, display picture 400 refreshing frequency again can according to refreshing frequency requirements again with point
Not corresponding weighted value is calculated.That is, each sub- display picture can be according to the region respective weights value where it
Weighted value is found out in the position of distribution map WTB, and the weighted value for recycling the corresponding requirements of refreshing frequency again and finding out carries out
Calculate the refreshing frequency requirements again after weighting.Then, refresh frequency again after calculating all sons and showing the weighting of picture
It, can be by selecting the maximum of the requirements of refreshing frequency again after weighting to refresh frequency again as display picture after rate requirements
Rate.
In the embodiment of Fig. 4 A and Fig. 4 B, obtained display picture is calculated according to weighted value distribution map WTB
Refreshing frequency is 50Hz again.
Fig. 5 is please referred to, Fig. 5 is the relational graph of the refreshing frequency again and backlight illumination in the embodiment of the present invention.Based on when the back of the body
When brightness is relatively low, the sensitivity of human eye vision can relative reduction.Therefore, it in the embodiment of the present invention, provides according to display device
Backlight illumination obtain frequency adjusted value, also, again according to frequency adjusted value come downgrade the refreshing frequency again of display picture with
It further generates and downgrades refreshing frequency again.
Specifically, it when the backlight illumination of display device is set to 40%, can be obtained according to 40% backlight illumination
One frequency adjusted value, and refreshing frequency again is further turned down by this frequency adjusted value.
Fig. 6 is please referred to, Fig. 6 is the schematic diagram of the display device of one embodiment of the invention.Display device 600 includes display surface
Plate 610 and controller 620.Display panel 610 couples controller 620.Display panel 610, which generates, shows picture, controller 620
Segmentation shows that picture is that most height show that picture, controller 620 simultaneously show that picture is most corresponding according to son respectively
Pattern calculates corresponding son respectively and shows the corresponding most refreshing frequency requirements again of picture, controller 620 and according to brushing again
New frequency needs value calculates the refreshing frequency again and again of the display action of display picture.
About the action details of above controller 620, there is detailed explanation in embodiment above-mentioned and implementation detail, with
It seldom repeats down.
In conclusion the present invention shows picture by that will show that picture divides into most height, and analyze sub- display picture
To be set for the refreshing frequency again of display picture.Thus, which display device can be come according to most suitable refreshing frequency again
The display action for carrying out display picture, effectively reaches and saves its power consumption.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (22)
1. a kind of control method of refreshing frequency again, which is characterized in that it is suitable for display device, including：
It is that most height show picture to divide the display picture that the display device is shown；
Correspond to this respectively to calculate according to the corresponding more several patterns of a little display picture and a little show the more of picture
Several refreshing frequency requirements again；And
According to those again refreshing frequency requirements come calculate show the display picture refreshing frequency again.
2. the control method of refreshing frequency again according to claim 1, which is characterized in that the display picture is static status display
Picture.
3. the control method of refreshing frequency again according to claim 1, which is characterized in that those patterns are respectively provided with difference
Majority grayscale values.
4. the control method of refreshing frequency again according to claim 3, which is characterized in that according to a little display picture point
Those not corresponding patterns come calculate correspond to respectively this it is a little display picture those again refreshing frequency requirements the step of wrap
It includes：
It calculates those corresponding grayscale values of a little display picture, and obtains according to those grayscale values that corresponding respectively this is a little
Show those refreshing frequency requirements again of picture；And
For those, refreshing frequency requirements carry out arithmetical operation to obtain the refreshing frequency again again.
5. the control method of refreshing frequency again according to claim 3, which is characterized in that according to a little display picture point
Those not corresponding patterns come calculate correspond to respectively this it is a little display picture those again refreshing frequency requirements the step of wrap
It includes：
Those corresponding grayscale values of a little display picture are calculated, and arithmetical operation is carried out to obtain for those grayscale values
Count grayscale value；And
The refreshing frequency again is obtained according to the statistics grayscale value.
6. the control method of refreshing frequency again according to claim 1, which is characterized in that according to a little display picture point
Those not corresponding patterns come calculate correspond to respectively this it is a little display picture those again refreshing frequency requirements the step of wrap
It includes：
Setting majority is a to set patterns, and wherein those set patterns a refreshing frequency setting value again of corresponding majority respectively；And
Being compared and use with those setting patterns for respectively corresponding respectively pattern of the sub- display picture selects those to brush again
One of new frequency setting value is the refreshing frequency requirements again of the corresponding respectively sub- display picture.
7. the control method of refreshing frequency again according to claim 1, which is characterized in that further include：
It determines to correspond to a little display picture respectively in the region at the place of the display picture according to a little display picture respectively
Majority weighted values；And
According to those, refreshing frequency requirements calculate the refreshing frequency again with those corresponding weighted values again.
8. the control method of refreshing frequency again according to claim 1, which is characterized in that divide what the display device was shown
The display picture is that the step of most height show picture includes：
Set cut zone；And
It is a little display picture to divide the display picture that the display device is shown according to the cut zone.
9. the control method of refreshing frequency again according to claim 8, which is characterized in that a little display picture phase mutual connection
It touches, neighbouring son shows that picture does not overlap or part is overlapped.
10. the control method of refreshing frequency again according to claim 8, which is characterized in that the shape of the cut zone is
Rectangle, circle or irregular shape, the sizes of those cut zone is all identical, not exactly the same or all differ.
11. the control method of refreshing frequency again according to claim 1, which is characterized in that further include：
Frequency adjusted value is obtained according to the backlight illumination of the display device；And
Downgrading this according to the frequency adjusted value, refreshing frequency downgrades refreshing frequency again to generate again.
12. a kind of display device, which is characterized in that including：
Display panel generates and shows picture；And
Controller couples the display panel, and it is that most height show picture, the controller point which, which divides the display picture,
Do not calculate that correspond to a little display picture respectively corresponding more according to the corresponding more several patterns of a little display picture
Several refreshing frequency requirements again, the controller and according to those again refreshing frequency requirements come calculate show the display picture
Refreshing frequency again and again.
13. display device according to claim 12, which is characterized in that the display picture is static status display picture.
14. display device according to claim 12, which is characterized in that those patterns are respectively provided with different majority ashes
Rank value.
15. display device according to claim 14, which is characterized in that the controller calculates a little display picture difference
Those corresponding grayscale values, and according to those grayscale values obtain those of corresponding a little display picture respectively refreshing frequency needs again
Evaluation, and refreshing frequency requirements carry out arithmetical operation to obtain the refreshing frequency again again for those.
16. display device according to claim 14, which is characterized in that the controller calculates a little display picture difference
Those corresponding grayscale values, and arithmetical operation is carried out to obtain statistics grayscale value, and according to statistics ash for those grayscale values
Rank value obtains the refreshing frequency again.
17. display device according to claim 12, which is characterized in that most setting patterns of controller setting,
In those setting patterns corresponding most refreshing frequency setting values again respectively, and for respectively corresponding respectively figure of the sub- display picture
Sample is compared and is used with those setting patterns and select those one of refreshing frequency setting value is each son of correspondence again
Show the refreshing frequency requirements again of picture.
18. display device according to claim 12, which is characterized in that the controller is also respectively according to a little display picture
Region decision of the face at the place of the display picture corresponds to the majority weighted values of a little display picture respectively, and the controller is simultaneously
According to those, refreshing frequency requirements calculate the refreshing frequency again with those corresponding weighted values again.
19. display device according to claim 12, which is characterized in that the controller also sets cut zone, and foundation
It is a little display picture that the cut zone, which divides the display picture that the display device is shown,.
20. display device according to claim 12, which is characterized in that a little display picture contacts with each other, neighbouring
Son shows that picture does not overlap or part is overlapped.
21. display device according to claim 19, which is characterized in that the shape of the cut zone be rectangle, circle or
Irregular shape, the sizes of those cut zone is all identical, not exactly the same or all differ.
22. display device according to claim 12, which is characterized in that the controller is also according to the backlight of the display device
Brightness obtains frequency adjusted value, and according to the frequency adjusted value downgrades this refreshing frequency downgrades refreshing frequency again to generate again.
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| CN108172196A (en) * | 2017-11-14 | 2018-06-15 | 孟洁 | Adaptive intra update frequency error factor system |
| CN108564928B (en) * | 2018-03-15 | 2021-01-26 | 京东方科技集团股份有限公司 | Display device and display driving method thereof |
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| US7292488B2 (en) * | 2005-07-06 | 2007-11-06 | Infineon Technologies Ag | Temperature dependent self-refresh module for a memory device |
| US8334857B1 (en) * | 2007-12-14 | 2012-12-18 | Nvidia Corporation | Method and system for dynamically controlling a display refresh rate |
| JP2010145810A (en) * | 2008-12-19 | 2010-07-01 | Eastman Kodak Co | Display device |
| TWI424418B (en) * | 2009-09-15 | 2014-01-21 | Chunghwa Picture Tubes Ltd | Color sequential display and power-saving method thereof |
| KR101814222B1 (en) * | 2010-02-12 | 2018-01-02 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Liquid crystal display device and electronic device |
| CN202816323U (en) * | 2011-12-27 | 2013-03-20 | 深圳市明微电子股份有限公司 | Light emitting diode display apparatus |
| CN103474031A (en) * | 2013-10-10 | 2013-12-25 | 深圳市奥蕾达光电技术有限公司 | LED display screen and scan display method thereof |
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