CN101546284A - Method for recovering data information of liquid crystal display equipment - Google Patents
Method for recovering data information of liquid crystal display equipment Download PDFInfo
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- CN101546284A CN101546284A CN200910061852A CN200910061852A CN101546284A CN 101546284 A CN101546284 A CN 101546284A CN 200910061852 A CN200910061852 A CN 200910061852A CN 200910061852 A CN200910061852 A CN 200910061852A CN 101546284 A CN101546284 A CN 101546284A
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Abstract
The invention relates to a method for recovering data of a liquid crystal display, which comprises the following steps of: classification of the data; backup, in which initial data of specific data is stored in a storage to be served as a backup region, and is stored into an erasable memory after a user presets data, general data is stored in a using region of the erasable memory, and can be stored into the erasable memory after the user resets the data, and the reset data is backuped in the backup region of the storage at the same time; and recovery, in which a data reloading system of the backup region is called when the specific data is detected to be abnormal, the data of the backup region is called to cover the data of the using region and the system is started after the calling if information in the using region is missing or mistaken, and the data of the using region is called to cover the data of the backup region if information in the backup region is missing or mistaken. The method has the advantages that the method reduces the probability of rewriting or losing equipment information, thereby making the conditions that equipment fails to operate or has abnormal operation greatly reduced, and ensuring the normal use of the equipment.
Description
Technical field
The present invention relates to field of liquid crystal, referring more particularly to the LCD particular data is white balance data and colour temperature method of data recovery.
Background technology
LCD is a kind of equipment that generally uses, and arrange in pairs or groups usually various PC or picture output device use.Display interior has a large amount of storage data, when normally moving, equipment can use, and it is that on-screen menu is regulated display function that the user can use OSD (on-screen display), it generally is the rectangle menu that ejects the every reconciling items information of display by screen behind the Menu key, can comprise that to the every working index of display color, pattern, geometric configuration etc. adjust by this menu, thereby reach best user mode.Regulate that the back LCD can be got off amended data storage so that the setting after can using adjusting after the start next time automatically.
Existing LCD environment for use complexity, especially network bar users, display can be by frequent switches, and in the process of LCD energising, if computer video card end job insecurity, civil power instability etc. all may cause LCD storage data to be rewritten or lose.Existing technology be design the time guarantee as far as possible under any condition between IC communication synchronously, but actual situation is this problem thoroughly can't be eradicated by the design of hardware.As store the characteristic that IC itself just has the data confining force to reduce in hot environment, and comparing under the condition of severe in environment for use, there is the risk of losing in data.In case and these data go wrong, can cause the display device operation exception as crashing, can't start shooting, picture obfuscation (even blank screen), showing situations such as apprehensive, ghost image, picture turn white.The user can only ask product after-sales service department to be repaired, and the cost of repairs is the cost of a costliness to enterprise.
White balance (White Blance) is the important concept in telephotography field, can solve a series of problems of color rendition and tone processing by it.The fundamental purpose that white balance is adjusted is exactly according to input simulating signal (AnalogSignals), automatically adjust A/D converter (Analog-to-Digital Converter, abbreviate ADC as) Gain/Offset, make the maximum of its input signal and minimum voltage can correspond to numerical digit output maximum and minimum value that we set.That white balance will be adjusted is Gain and the Offset of ADC, is an input simulating signal and an enantiomorphic relationship exporting the digital signal size, utilizes the setting of ADC Gain/Offset, comes the size of control output voltage.All wanting the match-on criterion signal source to be ADC Gain/Offset before LCD is dispatched from the factory adjusts automatically, make the minimum and maximum voltage of input simulating signal can correspond to the minimum and maximum value of the digital signal output that we set, make R, G, the intensity unanimity of the signal that B three rifles are got does not have that a certain rifle is crossed by force or weak excessively situation.By adjusting the setting of ADC Gain/Offset, when allowing the input standard signal, Scaler also can correspond to correct the brightest and the darkest, and it is saturated not have bright rank, or the dark inadequately problem in dark rank.
The understanding of colour temperature (Color temperature) notion, the seen light of human eye is made up of the spectrum of 7 kinds of coloured light usually.But wherein some light is blue partially, some is then red partially, colour temperature is exactly the method that is used for specially measuring with the color component of compute ray, founded by Britain physicist Luo De Kelvin for 19 end of the centurys, he has made a whole set of colour temperature meter algorithm, and its standard of specifically determining is based on the wavelength that is sent with a blackbody radiator.Suppose a certain black object, can be with all heat absorption that fall thereon, and not loss can all discharge the energy that heat generates again simultaneously with the form of " light ", the wavelength that its produces radiation maximum intensity varies with temperature and changes.For example, when the heating power that is subjected to when black matrix is equivalent to 500-550 degrees centigrade, will become kermesinus (the radiation intensity maximum of certain red wavelength), when reaching 1,050 one 1150 degrees centigrade, with regard to yellowing ... thereby the color component of light source is corresponding with the suffered temperature of this black matrix.Colour temperature uses kelvin degree (K) to represent usually, rather than uses centigrade thermic unit.In the process of forging iron, the iron of black becomes redness gradually in furnace temperature, and this is the best example of black matrix theory.Usually the tungsten filament in our the used bulb just is equivalent to this black matrix.The colour temperature meter algorithm is exactly according to above principle, comes correspondence to represent the color of object maximum wavelength when the specified temp radiation with K.According to this principle, the colour temperature of any light is suffered " temperature " when being equivalent to above-mentioned black matrix and giving out same color.Color is actually the effect on a kind of psychological physic, and the generation of all colours impression is because off and on the reaction of spectrum on eyes, so colour temperature just is used for representing the eye impressions of color.
Colour temperature is the sensation of human eye to luminophor or white reflection body, and this is a kind of sensation of physics, physiology and psychologic comprehensive complicated factor, also varies with each individual.Colour temperature is to change with artificial mode in TV (luminophor) or photography (refractive body), for example we use the incandescent thermolamp (3200K) of 3200K in photography, but we add that on camera lens the red filter filter makes photo seem the colour temperature height a bit by tassel flower light; Identical reason, we also can reduce a bit red (but subtracting the too many performance that how much also can have influence on normal redness) on TV allows picture seem the colour temperature height a bit.
Hobby on colour temperature is fixed because of the people, this sees that with we are daily the scenery scenery is relevant, for example people near the equator, the daily average color temperature of seeing is at 11000K (8000K (dusk)～17000K (noon)), so prefer high colour temperature (seeming truer), opposite, the people of (the about 6000K of average color temperature) just prefers (5600K or the 6500K) of low colour temperature in the higher area of latitude, that is to say if you remove to show the landscape of the arctic with the TV of a high colour temperature, seem that just sensation is blue or green partially; Opposite goes to see semi-tropical landscape as if you with the TV that hangs down colour temperature, and you can feel a bit red partially,
How does the colour temperature of TV or display screen define? because the scenery of China throughout the year average color temperature between 8000K～9500K, so TV station is that 9300K goes to photograph with spectators' colour temperature all in the making of program.But American-European because colour temperature at ordinary times and we are variant, are the reference made from the about 6000K of average color temperature throughout the year, so we see the sheet period of the day from 11 p.m. to 1 a.m that those are external again, will find that 5600K～6500K is the most suitable to watch.The sensation colour temperature was red partially when certainly this species diversity made us also can therefore feel the violent screen of seeing American-European computer or TV, warmed up partially, and some does not adapt to very much.Be exactly the people of colour temperature Black Eyes see 9300K be white but the people of blue eyes has seen to be exactly that the people of blue partially 6500K blue eyes has seen it is that we Chinese of white have seen be exactly Huang partially.General LCD all presets 6500K, 9300K, SRGB colour temperature data, to satisfy requirements of different users.If this colour temperature loss of data or change by mistake will cause the display device colour cast, influence user's visual effect.
Summary of the invention
Problem to be solved by this invention is to propose the restoration methods that a kind of data information of liquid crystal display equipment is lost at above-mentioned prior art, the opportunity that it utilizes LCD to power on, carry out data check, in case loss of data appears or when unusual, then according to decision condition with reduction of data.
The present invention for the solution that problem adopts of the above-mentioned proposition of solution is: a kind of restoration methods of data information of liquid crystal display equipment, it is characterized in that comprising classification of Data, data backup process, data recovery procedure, wherein:
1) classification of Data: will offer the user can be divided into A by the data that the menu modification is set) particular data; B) general data;
2) data backup process: the primary data of particular data is stored in the Flash storer as the backup zone, and this particular data can be by system call, and deposits among the erasable memory EEprom behind user's setting data; General data storage wherein one is used the zone at erasable memory EEprom, after the user resets, can deposit among the erasable memory EEprom, the general data backup after will resetting simultaneously is regional as backup in another zone of erasable memory EEprom;
3) data recovery procedure:
The rationality of its particular data of automatic checking when the facility switching machine or when powering on is in when unusual when system detects particular data, with calling the particular data heavy duty system in backup zone, avoids equipment colour cast to occur, draws different situation;
Whether the automatic checking system uses general data and its backup area numeric field data in zone in full accord when the facility switching machine or when powering on, and make judgement, if it is in full accord, then system normally starts, as if using the data in the zone to lose or mistake, then call the backup area numeric field data and cover the use area data and call the back start-up system, if the interior data in backup zone is lost or mistake, then call and use area data to cover backup area numeric field data, start-up system afterwards.
Press such scheme, described particular data comprises that the white balance that the liquid crystal display stored is arranged adjusts data and colour temperature data automatically, it is R/G/B Gain, R/G/B Offset that described white balance is adjusted data automatically, described colour temperature data are at 6500K, the R/G/B data when 9300K, SRGB.
Press such scheme, it is 0～50 or 200～255 that described white balance is adjusted data automatically, then is that particular data is unusual.
Press such scheme, described colour temperature data if being checked through data is 0～110 or 210～255, then are that particular data is unusual.
Press such scheme, the device control state class data that described general data are display comprise whether on-off state, OSD menu lock, whether button locks, whether can enter power save mode.
The present invention compared with prior art has the following advantages: greatly reduced the probability that equipment data is rewritten or lost, thereby equipment can't have been moved or the situation of misoperation significantly reduces, guaranteed the normal use of equipment.
Description of drawings
Fig. 1 is the process flow diagram (at the general data of the first kind) of an embodiment of LCD data information restoration methods of the present invention.
Fig. 2 is the process flow diagram (at the second class particular data) of another embodiment of LCD data information restoration methods of the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment, but can not be as limitation of the invention.
LCD uses Flash (flash memory) or Mcu (central processing unit) to store Code (guarantee the code of equipment operation, the user can not revise) usually.System uses Flash to divide the subregion or uses independent EEprom (electricallyerasable ROM (EEROM)) to store USER DATA (user can revise the data of setting), and USER DATA class data can frequently be read by system and by the frequent rewriting of user, storage.The characteristics different by USER DATA are divided into particular data and general data with it.
Data recovered of the present invention all provides the data that can revise set by menu to the user, according to the character of these data it is divided into two classes.
A. particular data (its normal data possesses the characteristic that only is in certain scope)
B. general data (not possessing singularity, mainly is the data of some opertaing device states)
The data information restoration methods of LCD of the present invention or LCD TV adopts dual mode respectively at the protection of two class USER DATA data.
As Fig. 1, operating process synoptic diagram for first embodiment of the present invention, system divides two area stores USER DATA (general data class) data in advance in EEprom, wherein a zone is the normal zone of using, be called and use the zone, another piece zone is called the backup zone as the backup zone.After the user revised setting at every turn, system all can deposit amended data simultaneously in and use zone and backup zone.System can will use area data summation (note is checksum) automatically every 20ms in normal course of operation.When each system powered on, all data that system can fetch equipment can be done summation (note is checksum1) with it after reading the data of using the zone, read the backup area numeric field data and with its summation (note is checksum2).Compare the consistance of checksum and checksum1, checksum2 then.If checksum, checksum1, checksum2 are consistent, then the unusual of loss of data or rewriting do not take place in system, and system will normally start.If checksum and checksum1 are inconsistent, and checksum is consistent with checksum2, then the data exception in zone is used in explanation, and system will cover with the backup area numeric field data and use area data, and start-up system.If checksum is consistent with checksum1, and checksum and checksum2 are inconsistent, the data of then judging in the backup zone is lost or mistake, to use the document copying in the zone to arrive the backup zone, just upgrade the data in the backup zone again, system is written into the data of using in the zone afterwards, and starts.By practice and theoretical analysis, have only above three kinds of situations to take place, and all can utilize this data backup mechanism that damaged data is reduced.
As Fig. 2, be the operating process synoptic diagram of second embodiment of the present invention, recover for the particular data class implementation data among the part USER DATA.As described in summary of the invention, it mainly is to adjust data and colour temperature data automatically at white balance that these type of data are recovered.System is the first loading data of meeting when electrifying startup, the method of this invention is to check that when device power inspection is respectively organized white balance data (as Gain, the Offset of three rifles of the R/G/B in the background technology) and respectively organized the colour temperature data such as 6500K (R/G/B data) respectively, 9300K (R/G/B data), whether the numerical value of SRGB (R/G/B data) etc. is in normal range, be that white balance is adjusted data Gain, offset automatically, if be checked through data, then be unusual 0～50 or 200～255.The colour temperature data if being checked through data is 0～110 or 210～255, then are unusual.The normal range of above white balance data, colour temperature data is to combine the empirical data that draws by practice with theoretical.When system determines data when being in abnormal ranges, system is preset at primary data in the Flash storer with loading, and these data are write among the EEprom again stores, and starts.If inspection of data is in the normal region, then system directly starts.
Though more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than be used for qualification to scope of the present invention; those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (5)
1, a kind of restoration methods of data information of liquid crystal display equipment is characterized in that comprising classification of Data, data backup process, data recovery procedure, wherein:
1) classification of Data: will offer the user can be divided into A by the data that the menu modification is set) particular data; B) general data;
2) data backup process: the primary data of particular data is stored in the Flash storer as the backup zone, and this particular data can be by system call, and deposits among the erasable memory EEprom behind user's setting data; General data storage wherein one is used the zone at erasable memory EEprom, after the user resets, can deposit among the erasable memory EEprom, the general data backup after will resetting simultaneously is regional as backup in another zone of erasable memory EEprom;
3) data recovery procedure:
The rationality of its particular data of automatic checking when the facility switching machine or when powering on is in when unusual when system detects particular data, with calling the particular data heavy duty system in backup zone, avoids equipment colour cast to occur, draws different situation;
Whether the automatic checking system uses general data and its backup area numeric field data in zone in full accord when the facility switching machine or when powering on, and make judgement, if it is in full accord, then system normally starts, as if using the data in the zone to lose or mistake, then call the backup area numeric field data and cover the use area data and call the back start-up system, if the interior data in backup zone is lost or mistake, then call and use area data to cover backup area numeric field data, start-up system afterwards.
2, press the restoration methods of the described data information of liquid crystal display equipment of claim 1, it is characterized in that described particular data comprises that the white balance that the liquid crystal display stored is arranged adjusts data and colour temperature data automatically, it is R/G/B Gain, R/G/B Offset that described white balance is adjusted data automatically, described colour temperature data are at 6500K, the R/G/B data when 9300K, SRGB.
3, by the restoration methods of the described data information of liquid crystal display equipment of claim 2, it is characterized in that it is 0～50 or 200～255 that described white balance is adjusted data automatically, then is that particular data is unusual.
4, by the restoration methods of the described data information of liquid crystal display equipment of claim 2, it is characterized in that described colour temperature data, if being checked through data is 0～110 or 210～255, then is that particular data is unusual.
5, by the restoration methods of the described data information of liquid crystal display equipment of claim 1, it is characterized in that the device control state class data that described general data are display comprise whether on-off state, OSD menu lock, whether button locks, whether can enter power save mode.
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| CN2009100618520A CN101546284B (en) | 2009-04-28 | 2009-04-28 | Method for recovering data information of liquid crystal display equipment |
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| CN2009100618520A CN101546284B (en) | 2009-04-28 | 2009-04-28 | Method for recovering data information of liquid crystal display equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101950248A (en) * | 2010-10-12 | 2011-01-19 | 冠捷显示科技（厦门）有限公司 | Method for improving display software data storage structure and structure thereof |
| CN102890657A (en) * | 2012-10-10 | 2013-01-23 | 深圳市航盛电子股份有限公司 | Method for reducing data read-write errors of EEPROM (electrically erasable programmable read-only memory) |
| CN103136065A (en) * | 2012-12-31 | 2013-06-05 | 上海仪电科学仪器股份有限公司 | Anti-interference self-recovery method for general liquid crystal display (LCD) module |
| CN104035907A (en) * | 2013-03-08 | 2014-09-10 | 纬创资通股份有限公司 | Backup method for computer system and computer system |
| CN105808390A (en) * | 2016-04-29 | 2016-07-27 | 合肥美的电冰箱有限公司 | Home appliance information self-checking and self-recovery method and system and home appliances |
| CN105824666A (en) * | 2016-03-14 | 2016-08-03 | 美的集团股份有限公司 | Data recovery device and method |
| CN106095605A (en) * | 2016-06-03 | 2016-11-09 | 青岛海信电器股份有限公司 | The abnormality eliminating method of a kind of display terminal and device |
| CN106201785A (en) * | 2016-07-15 | 2016-12-07 | 珠海格力电器股份有限公司 | It is applied to date storage method and the device of air-conditioning display |
| CN106484567A (en) * | 2016-09-29 | 2017-03-08 | 深圳创维数字技术有限公司 | A kind of using method of flash data backup and system |
| CN108701188A (en) * | 2016-02-01 | 2018-10-23 | 赛门铁克公司 | In response to detecting the potential system and method for extorting software for modification file backup |
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- 2009-04-28 CN CN2009100618520A patent/CN101546284B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101950248A (en) * | 2010-10-12 | 2011-01-19 | 冠捷显示科技（厦门）有限公司 | Method for improving display software data storage structure and structure thereof |
| CN102890657A (en) * | 2012-10-10 | 2013-01-23 | 深圳市航盛电子股份有限公司 | Method for reducing data read-write errors of EEPROM (electrically erasable programmable read-only memory) |
| CN102890657B (en) * | 2012-10-10 | 2016-04-27 | 深圳市航盛电子股份有限公司 | The method that the reading and writing data of a kind of EEPROM of minimizing is made mistakes |
| CN103136065A (en) * | 2012-12-31 | 2013-06-05 | 上海仪电科学仪器股份有限公司 | Anti-interference self-recovery method for general liquid crystal display (LCD) module |
| CN104035907A (en) * | 2013-03-08 | 2014-09-10 | 纬创资通股份有限公司 | Backup method for computer system and computer system |
| CN108701188A (en) * | 2016-02-01 | 2018-10-23 | 赛门铁克公司 | In response to detecting the potential system and method for extorting software for modification file backup |
| CN108701188B (en) * | 2016-02-01 | 2021-09-24 | 诺顿卫复客公司 | System and method for modifying a file backup in response to detecting potential lasso software |
| CN105824666A (en) * | 2016-03-14 | 2016-08-03 | 美的集团股份有限公司 | Data recovery device and method |
| CN105824666B (en) * | 2016-03-14 | 2019-02-01 | 美的集团股份有限公司 | Data Recapture Unit and method |
| CN105808390A (en) * | 2016-04-29 | 2016-07-27 | 合肥美的电冰箱有限公司 | Home appliance information self-checking and self-recovery method and system and home appliances |
| CN106095605A (en) * | 2016-06-03 | 2016-11-09 | 青岛海信电器股份有限公司 | The abnormality eliminating method of a kind of display terminal and device |
| CN106201785A (en) * | 2016-07-15 | 2016-12-07 | 珠海格力电器股份有限公司 | It is applied to date storage method and the device of air-conditioning display |
| CN106201785B (en) * | 2016-07-15 | 2019-03-05 | 珠海格力电器股份有限公司 | Date storage method and device applied to air-conditioning display |
| CN106484567A (en) * | 2016-09-29 | 2017-03-08 | 深圳创维数字技术有限公司 | A kind of using method of flash data backup and system |
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| CN101546284B (en) | 2010-11-03 |
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