CN103293731B - It is a kind of to adjust the method and apparatus that display liquid crystal molecule overturns mode - Google Patents
It is a kind of to adjust the method and apparatus that display liquid crystal molecule overturns mode Download PDFInfo
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- CN103293731B CN103293731B CN201310150766.3A CN201310150766A CN103293731B CN 103293731 B CN103293731 B CN 103293731B CN 201310150766 A CN201310150766 A CN 201310150766A CN 103293731 B CN103293731 B CN 103293731B
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Abstract
Adjust the method and apparatus that display liquid crystal molecule overturns mode the embodiment of the invention discloses a kind of, it is described including：Detect the display whether in the quick more new state of picture；If so, the upset mode of the liquid crystal molecule of the display then to be set embark on journey upset or frame upset；If it is not, the upset mode of the liquid crystal molecule of the display then is arranged into a upset.The method and apparatus of display liquid crystal molecule upset of the invention can dynamically adjust the upset mode that the liquid crystal molecule of LCD overturns according to the picture frame per second of display, so as to the power consumption of LCD can be reduced.
Description
Technical field
The present invention relates to electronic technology field, especially, it is related to a kind of side for adjusting display liquid crystal molecule upset mode
Method and device.
Background technology
Liquid crystal display（LCD）Display be based on single pixel point, and each pixel be by backlight pass through
Liquid crystal molecule, RGB（It is red bluish-green）Color plate, Polarizer（Play on-off action）Come what is shown.Because each 3 primary colors has 256
Brightness degree, so also needing to be controlled brightness.For the control of each color brightness, what is utilized is the rotation of liquid crystal molecule
Photosensitiveness, i.e. liquid crystal molecule have different light transmittances in different angles.Angle for liquid crystal molecule is controlled, it is necessary at its two ends
Plus different magnitudes of voltage, it just can be allowed to deflect, but due to Polarizer, RGB color plate, backlight is all certain, so
In the display of LCD, the voltage control to liquid crystal molecule is even more important.If however, because liquid crystal molecule is for a long time a certain
Worked under fixed voltage, optical activity can be caused to solidify, that is, rotate liquid crystal angle, but light transmittance is constant, so that liquid crystal is scrapped,
So in order to solve this problem, it is necessary to constantly overturn liquid crystal molecule, i.e. last moment positive voltage signal, subsequent time
Use negative voltage signal；Ideally the two drive signals are symmetric.The mode of control liquid crystal upset has 3 kinds：Frame is turned over
Turn, row upset and point overturn.Frame upset refers to drive signal and does reversal between two frames that are connected；Row upset refers to driving
Dynamic signal does reversal between two row that are connected；Point upset refer to drive signal be connected 2 points between do reversal.
Various hardware differences are inevitably introduced in the production process of LCD, causes to drive the positive and negative of liquid crystal molecule
Signal bipolarity is asymmetric, and because LCD needs constantly to drive liquid crystal deflection using positive negative signal to show, thus can
See that lcd screen flashes（flicker）.If overturn using frame, liquid crystal molecule will overturn between two frames that are connected, if two
Pole asymmetric information just can be appreciated that obvious whole screen flash is sparkled；If overturn using row, liquid crystal molecule will be turned in connected two rows
Turn, if the two poles of the earth asymmetric information just can be appreciated that obvious indistinct stria flicker（Wrinkles on one's forehead）；If using a upset,
Liquid crystal molecule will occur hair upset at 2 points being connected, even if the two poles of the earth asymmetric information can also be obviously improved the screen flash in frame upset
Wrinkles on one's forehead in bright and row upset, so all being overturn using point during screen in an lcd is set at present, it can obviously reduce
flicker.Although point upset can reduce flicker, to sacrifice power consumption as cost, requirement that each point will be real
When each overturn control signal, so power dissipation ratio row overturns many 40mA effect, but prior art does not account for how allowing people to see
Power consumption can be reduced again less than flicker.
The content of the invention
The embodiment of the present invention provides a kind of method and apparatus for adjusting display liquid crystal molecule upset mode, can be according to LCD
Picture frame per second dynamically adjustment LCD liquid crystal molecule upset mode.
In the embodiment of the present invention, realizing the method for regulation display liquid crystal molecule upset mode includes：
Detect the display whether in the quick more new state of picture；
If so, the upset mode of the liquid crystal molecule of the display then to be set embark on journey upset or frame upset；
If it is not, the upset mode of the liquid crystal molecule of the display then is arranged into a upset.
The device of regulation display liquid crystal molecule upset provided in an embodiment of the present invention includes：
Detection module, for detecting the display whether in the quick more new state of picture；
Setup module, for when the display is detected in picture quickly more new state, by the display
The upset mode of liquid crystal molecule sets embark on journey upset or frame upset, and is not in picture quickly more the display is detected
During new state, the upset mode of the liquid crystal molecule of the display is arranged to a upset.
Whether the embodiment of the present invention is in picture by detecting LCD in the quick more new state of picture LCD is detected
During quick more new state, the upset mode of the liquid crystal molecule of LCD is set into upset of embarking on journey, and picture is not in LCD is detected
During the quick more new state in face, the upset mode of the liquid crystal molecule of LCD is arranged to a upset, so that can be according in the screen of terminal
Hold the upset mode of the liquid crystal molecule of dynamic adjustment LCD, to reduce the power consumption of LCD.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, can also obtain other attached according to these accompanying drawings
Figure.
Fig. 1 is the method flow diagram of regulation display liquid crystal molecule upset provided in an embodiment of the present invention；
Fig. 2 is the structural representation of the device of regulation display liquid crystal molecule upset provided in an embodiment of the present invention；
Fig. 3 is the structural representation of mobile terminal provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
When static image is shown（Photo is such as browsed, webpage is browsed, e-book is seen）When, human eye sees screen for a long time
Curtain, now screen picture update relatively slow, human eye is bright to screen flash to require higher it will be noted that screen details, such as sees electronics for a long time
Book, screen somewhat flashes, and people will feel dazzling；And for screen sheet in quickly more new images（Video is such as played, trip is played
Play）When, attention of the human eye to screen details is just less concentrated, and now can more notice the content that screen picture updates, and is seen not
To the flicker of screen row.
Fig. 1 shows that regulation display liquid crystal molecule provided in an embodiment of the present invention overturns the method flow diagram of mode.
S101：Whether detection display is in the quick more new state of picture；
Specifically, picture quickly updates the display frame rate of state representation display（Or be the more aobvious rate of picture）Reach setting
Threshold value, for example, 12 frames are per second.If detecting display is in the quick more new state of picture, this flow goes to step S102；
If detecting display is not in the quick more new state of picture, this flow goes to step S103.
In an embodiment of the present invention, object for appreciation plays due to being generally in the scene of the quick more new state of picture, broadcasting is regarded
Frequently, photograph taking, video recording etc., and application program will the only way which must be passed of quick more new images be frame buffer zone (FB), for example, hardware
Frame buffer zone, it is possible to detect application program view data is delivered to FB in frequency, if deliver frequency be more than certain
One threshold values set in advance, for example, being more than 12fps, then judges that display is in the quick more new state of picture, conversely, then judging
Display is not in the quick more new state of picture.
In another embodiment of the invention, can be by controlling the operation process of the current operation program of the terminal of display
In keyword whether judge display in the quick more new state of picture because in Android（android）In, each program
Startup have unique program name, and title can show the function of program, such as XXXpalyer.apk, represent player,
XxxGame.apk, represents that certain is played, and the operation that some keywords such as certain " game ", " player " can also be included in program is entered
Cheng Zhong, it is possible to judge display by whether including some keywords in the title or operation process of current operation program
Whether in the quick more new state of picture, if for example, being included in detecting the title or operation process of current operation program
The keyword that the game meaning can be expressed as of the complete chains such as " game ", " Gam ", " Game ", " GAME " or local character string, then
Represent that present procedure operates in the quick more new state of picture, because after starting game, can quickly update picture；If detecting current
" player " is included in the title or operation process of operation program, the complete chain such as " Player " or local character string can be represented
It is the keyword of the player meaning, then it represents that present procedure operates in the quick more new state of picture, because after starting player, meeting
Playing video file, then can quickly update picture；If being included in the title or operation process that detect current operation program
The keyword that camera can be expressed as of the complete chains such as " CAM ", " Camera ", " Ca " or local character string, then it represents that work as future
Sort run, because starting the continuous preview image of meeting after camera function, can quickly update picture in the quick more new state of picture.
In another embodiment of the present invention, because having exclusive function, every kind of independent function per class application program
It is required for unique module of software and hardware to realize that for example, player plays is video file, and video file is encoded
, it is necessary to playing function could be completed with software transfer decoding program, so the system that can be called by current operation program
Whether module judges display in the quick more new state of picture, if for example, have invoked hardware decoding, or have invoked video
（video）Related library file, or start the service of video encoding and decoding（service）, then judge it is to start playing function,
And then can determine that display is in the quick more new state of picture；If current operation program has run openGL（Painted for 3D
Figure）, or enable overlay（Hardware-accelerated display）Function, represents and is in game state, may thereby determine that display
In the quick more new state of picture；If present procedure opens camera（camera）Drive, expression is currently running camera function,
Such that it is able to judge that display is in the quick more new state of picture.
S102：Row upset or frame upset are set;
Specifically, the upset mode of the liquid crystal molecule of display is set embark on journey upset or frame upset, the specific side of setting
Method is that the upset mode of the liquid crystal molecule of display is switched embark on journey upset or frame upset by switch unit, for example, in liquid crystal
Pass through existing interface protocol in the driver of display（For example, i2c, mipi, spi etc.）By row upset or frame upset register
In the corresponding register of value write-in.
S103：Set-point overturns；
Specifically, the upset mode of the liquid crystal molecule of display is arranged to a upset, the specific method of setting is to pass through
The upset mode of the liquid crystal molecule of display is switched to a upset by switch unit, for example, in the driver of liquid crystal display
By existing interface protocol（For example, i2c, mipi, spi etc.）By in an a upset register value corresponding register of write-in.
Whether the embodiment of the present invention is in picture by detecting LCD in the quick more new state of picture LCD is detected
During quick more new state, the upset mode of the liquid crystal molecule of LCD is set embark on journey upset or frame upset, and detecting LCD
When being not in the quick more new state of picture, the upset mode of the liquid crystal molecule of LCD is arranged to a upset, so that can be according to terminal
Screen content dynamically adjustment LCD liquid crystal molecule upset mode, greatly reduce the power consumption of LCD.
Fig. 2 shows the structural representation of the device of regulation display liquid crystal molecule upset provided in an embodiment of the present invention.
The device 2 of the regulation display liquid crystal molecule upset shown in figure includes detection module 21, setup module 22, LCD23 and control
The terminal 24 of LCD.
Detection module 21, for detecting LCD23 whether in the quick more new state of picture.In an embodiment of the present invention,
Because the scene for being generally in the quick more new state of picture has object for appreciation to play, video, photograph taking, video recording etc. are played, and control LCD
Terminal 24 application program will the only way which must be passed of quick more new images be frame buffer zone (FB), for example, hardware frame buffer, institute
With can detect application program view data is delivered to FB in frequency, if the frequency delivered is more than a certain set in advance
Threshold values, for example, being more than 12fps, then judges that LCD23 is in the quick more new state of picture, conversely, then judging that LCD23 is not in picture
The quick more new state in face.
In another embodiment of the invention, can be by controlling the operation process of the current operation program of the terminal 24 of LCD
In keyword whether judge LCD23 in the quick more new state of picture because in Android（android）In, each program
Startup have unique program name, and title can show the function of program, such as XXXpalyer.apk, represent player,
XxxGame.apk, represents that certain is played, and the operation that some keywords such as certain " game ", " player " can also be included in program is entered
Cheng Zhong, it is possible to judge display by whether including some keywords in the title or operation process of current operation program
Whether in the quick more new state of picture, if for example, being included in detecting the title or operation process of current operation program
The keyword that the game meaning can be expressed as of the complete chains such as " game ", " Gam ", " Game ", " GAME " or local character string, then
Represent that present procedure operates in the quick more new state of picture, because after starting game, can quickly update picture；If detecting current
" player " is included in the title or operation process of operation program, the complete chain such as " Player " or local character string can be represented
It is the keyword of the player meaning, then it represents that present procedure operates in the quick more new state of picture, because after starting player, meeting
Playing video file, then can quickly update picture；If being included in the title or operation process that detect current operation program
The keyword that camera can be expressed as of the complete chains such as " CAM ", " Camera ", " Ca " or local character string, then it represents that work as future
Sort run, because starting the continuous preview image of meeting after camera function, can quickly update picture in the quick more new state of picture.
In another embodiment of the present invention, because having exclusive function, every kind of independent function per class application program
It is required for unique module of software and hardware to realize that for example, player plays is video file, and video file is encoded
, it is necessary to playing function could be completed with software transfer decoding program, so can be by controlling the current operation of the terminal 24 of LCD
Whether the system module that program is called judges LCD23 in the quick more new state of picture, if for example, have invoked hardware solution
Code, or have invoked video（video）Related library file, or start the service of video encoding and decoding（service）, then judge be
Playing function is started, and then can determine that LCD23 is in the quick more new state of picture；If current operation program is run
openGL（Drawn for 3D）, or enable overlay（Hardware-accelerated display）Function, represents and is in game state, from
And display can be determined and be in the quick more new state of picture；If present procedure opens camera（camera）Drive, represent
Camera function is currently running, such that it is able to judge that LCD23 is in the quick more new state of picture.
Setup module 22, for when LCD23 is detected in picture quickly more new state, by the liquid crystal molecule of LCD23
Upset mode embark on journey upset or frame upset be set, and when detecting LCD23 and being not in the quick more new state of picture, will
The upset mode of the liquid crystal molecule of LCD23 is arranged to a upset.Specifically, setup module 22 is used to be in detecting LCD23
During the quick more new state of picture, the upset mode of the liquid crystal molecule of LCD23 is switched by switch unit embarks on journey upset or frame is turned over
Turn；Or, when detecting LCD23 and being not in the quick more new state of picture, by switch unit by the liquid crystal molecule of LCD23
Upset mode switches to a upset, for example, passing through existing interface protocol in the driver of LCD23（For example,（For example, i2c,
Mipi, spi etc.）By in a register value corresponding register of write-in of a upset.
The device 2 of regulation display liquid crystal molecule upset provided in an embodiment of the present invention can be applied in mobile terminal, example
Such as, smart mobile phone.As shown in figure 3, mobile terminal 2 includes detection module 21 and setup module 22 in Fig. 2, the work(of these modules
Can be same with its function phase in fig. 2, therefore will not be repeated here.
It is pointed out that presently disclosed method and device, is mainly used in the display of smart mobile phone at present
Liquid crystal molecule overturn the regulation of mode, it is contemplated that range of application of the invention is not limited to smart mobile phone, also
In can be applied to other various electronic products with LCD.
Module or submodule in all embodiments of the invention, can be by universal integrated circuit, such as CPU（Central
Processing Unit, central processing unit）, or by ASIC (Application Specific Integrated
Circuit, application specific integrated circuit）To realize.
One of ordinary skill in the art will appreciate that all or part of flow in realizing above-described embodiment method, can be
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory（Read-Only Memory, ROM）Or random access memory（Random Access
Memory, RAM）Deng.
Above disclosed is only present pre-ferred embodiments, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (10)
1. it is a kind of to adjust the method that display liquid crystal molecule overturns mode, it is characterised in that methods described includes：
Detect the display whether in the quick more new state of picture；
If so, the upset mode of the liquid crystal molecule of the display then to be set embark on journey upset or frame upset；
If it is not, the upset mode of the liquid crystal molecule of the display then is arranged into a upset；
Wherein, whether the detection display includes in the quick more new state of picture：
View data is delivered to the current operation program of the terminal of the detection control display frequency in frame buffer zone, such as
Really described frequency is more than threshold values set in advance, it is determined that the display is in the quick more new state of picture.
2. it is a kind of to adjust the method that display liquid crystal molecule overturns mode, it is characterised in that methods described includes：
Detect the display whether in the quick more new state of picture；
If so, the upset mode of the liquid crystal molecule of the display then to be set embark on journey upset or frame upset；
If it is not, the upset mode of the liquid crystal molecule of the display then is arranged into a upset；
Wherein, whether the detection display includes in the quick more new state of picture：
Whether include default keyword in the operation process of the current operation program of the terminal of the detection control display, if
It is then to judge that the display is in the quick more new state of picture.
3. the method that regulation display liquid crystal molecule according to claim 2 overturns mode, it is characterised in that described by institute
State the liquid crystal molecule of display upset mode set embark on journey upset or frame upset include：By switch unit by the display
Liquid crystal molecule upset mode switch embark on journey upset or frame upset；
The upset mode of the liquid crystal molecule by the display is arranged to a upset to be included：Will be described aobvious by switch unit
Show that the upset mode of the liquid crystal molecule of device switches to a upset.
4. it is a kind of to adjust the method that display liquid crystal molecule overturns mode, it is characterised in that methods described includes：
Detect the display whether in the quick more new state of picture；
If so, the upset mode of the liquid crystal molecule of the display then to be set embark on journey upset or frame upset；
If it is not, the upset mode of the liquid crystal molecule of the display then is arranged into a upset；
Wherein, whether the detection display includes in the quick more new state of picture：
Whether the system module that the current operation program of the terminal of the detection control display is called includes default system
Module, if so, then judging that the display is in the quick more new state of picture.
5. the method that regulation display liquid crystal molecule according to claim 4 overturns mode, it is characterised in that described by institute
State the liquid crystal molecule of display upset mode set embark on journey upset or frame upset include：By switch unit by the display
Liquid crystal molecule upset mode switch embark on journey upset or frame upset；
The upset mode of the liquid crystal molecule by the display is arranged to a upset to be included：Will be described aobvious by switch unit
Show that the upset mode of the liquid crystal molecule of device switches to a upset.
6. it is a kind of to adjust the device that display liquid crystal molecule overturns mode, it is characterised in that described device includes：
Detection module, for detecting the display whether in the quick more new state of picture；
Setup module, for when the display is detected in picture quickly more new state, by the liquid crystal of the display
The upset mode of molecule sets embark on journey upset or frame upset, and quickly updates shape detecting the display and being not in picture
During state, the upset mode of the liquid crystal molecule of the display is arranged to a upset；
Wherein, the detection module specifically for：
View data is delivered to the current operation program of the terminal of the detection control display frequency in frame buffer zone, such as
Really described frequency is more than threshold values set in advance, it is determined that the display is in the quick more new state of picture.
7. it is a kind of to adjust the device that display liquid crystal molecule overturns mode, it is characterised in that described device includes：
Detection module, for detecting the display whether in the quick more new state of picture；
Setup module, for when the display is detected in picture quickly more new state, by the liquid crystal of the display
The upset mode of molecule sets embark on journey upset or frame upset, and quickly updates shape detecting the display and being not in picture
During state, the upset mode of the liquid crystal molecule of the display is arranged to a upset；
Wherein, the detection module specifically for：
Whether include default keyword in the operation process of the current operation program of the terminal of the detection control display, if
It is then to judge that the display is in the quick more new state of picture.
8. regulation display liquid crystal molecule according to claim 7 overturns the device of mode, it is characterised in that the setting
Module specifically for；
When the display is detected in picture quickly more new state, the liquid crystal of the display is divided by switch unit
The upset mode of son switches embark on journey upset or frame upset；
When detecting the display and being not in the quick more new state of picture, by switch unit by the liquid crystal of the display
The upset mode of molecule switches to a upset.
9. it is a kind of to adjust the device that display liquid crystal molecule overturns mode, it is characterised in that described device includes：
Detection module, for detecting the display whether in the quick more new state of picture；
Setup module, for when the display is detected in picture quickly more new state, by the liquid crystal of the display
The upset mode of molecule sets embark on journey upset or frame upset, and quickly updates shape detecting the display and being not in picture
During state, the upset mode of the liquid crystal molecule of the display is arranged to a upset；
Wherein, the detection module specifically for：
Whether the system module that the current operation program of the terminal of the detection control display is called includes default system
Module, if so, then judging that the display is in the quick more new state of picture.
10. regulation display liquid crystal molecule according to claim 6 overturns the device of mode, it is characterised in that described to set
Put module specifically for；
When the display is detected in picture quickly more new state, the liquid crystal of the display is divided by switch unit
The upset mode of son switches embark on journey upset or frame upset；
When detecting the display and being not in the quick more new state of picture, by switch unit by the liquid crystal of the display
The upset mode of molecule switches to a upset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310150766.3A CN103293731B (en) | 2013-04-27 | 2013-04-27 | It is a kind of to adjust the method and apparatus that display liquid crystal molecule overturns mode |
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| CN201310150766.3A CN103293731B (en) | 2013-04-27 | 2013-04-27 | It is a kind of to adjust the method and apparatus that display liquid crystal molecule overturns mode |
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| CN105304048B (en) * | 2015-11-18 | 2018-03-30 | 深圳市华星光电技术有限公司 | The dynamic drive method of liquid crystal display device |
| CN105261344B (en) * | 2015-11-25 | 2018-06-29 | 深圳市华星光电技术有限公司 | The control device and control method of a kind of display panel |
| CN105513555B (en) | 2016-02-18 | 2018-11-16 | 京东方科技集团股份有限公司 | A kind of display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728230A (en) * | 2004-07-29 | 2006-02-01 | 恩益禧电子股份有限公司 | Liquid crystal display device and driver circuit therefor |
| CN1731498A (en) * | 2005-08-04 | 2006-02-08 | 友达光电股份有限公司 | Liquid crystal driving system and method |
| CN1766983A (en) * | 2004-10-28 | 2006-05-03 | 恩益禧电子股份有限公司 | Liquid crystal display device and method for driving the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002091400A (en) * | 2000-09-19 | 2002-03-27 | Matsushita Electric Ind Co Ltd | Liquid crystal display device |
| CN101726952B (en) * | 2009-12-30 | 2011-11-16 | 昆山龙腾光电有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN102222477B (en) * | 2010-04-16 | 2013-06-19 | 北京京东方光电科技有限公司 | Grid driving method, grid driving circuit and pixel structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728230A (en) * | 2004-07-29 | 2006-02-01 | 恩益禧电子股份有限公司 | Liquid crystal display device and driver circuit therefor |
| CN1766983A (en) * | 2004-10-28 | 2006-05-03 | 恩益禧电子股份有限公司 | Liquid crystal display device and method for driving the same |
| CN1731498A (en) * | 2005-08-04 | 2006-02-08 | 友达光电股份有限公司 | Liquid crystal driving system and method |
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