CN103000144B - A kind of backlight adjusting method of liquid crystal indicator and device - Google Patents
A kind of backlight adjusting method of liquid crystal indicator and device Download PDFInfo
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- CN103000144B CN103000144B CN201210568198.4A CN201210568198A CN103000144B CN 103000144 B CN103000144 B CN 103000144B CN 201210568198 A CN201210568198 A CN 201210568198A CN 103000144 B CN103000144 B CN 103000144B
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Abstract
The invention discloses a kind of backlight adjusting method and device of liquid crystal indicator, described method comprises: detect liquid crystal indicator residing ambient temperature, and the liquid crystal response temporal information of the acquisition liquid crystal indicator corresponding with described ambient temperature; According to described liquid crystal response temporal information and the residing display mode of current liquid crystal indicator, generate corresponding time sequence information backlight; According to the opening time backlight of described time sequence information adjustable liquid crystal display display unit backlight; Described device comprises: temperature detecting module, memory module, processing module, control module; The present invention is according to the liquid crystal response time relationship of ambient temperature and liquid crystal indicator, dynamically adjust the opening time backlight of liquid crystal indicator, can effectively improve display brightness, can also effectively solve liquid crystal indicator liquid crystal response overlong time at low temperatures, cause 2D to show that hangover is serious, 3D shows the large problem of crosstalking, view and admire comfortableness thereby improve user while using.<!--1-->
Description
Technical field
The present invention relates to adjusting backlight field, relate in particular to a kind of adjusting side backlight of liquid crystal indicatorMethod and device.
Background technology
The liquid crystal response time of liquid crystal indicator is an important finger weighing LCD TV image qualityMark, its liquid crystal response time is shorter, and motion picture is more not easy to occur conditions of streaking, imageImage quality higher. In life, use the liquid crystal material of different brackets and the liquid crystal of driving method at presentDisplay unit, the response time of its liquid crystal all differs corresponding to the curvature of actual environment variations in temperatureSample, but its total rule is all in the situation of temperature step-down, and the liquid crystal response time is corresponding elongated,Its response time main formulas for calculating is as follows:
Wherein, τdRepresent the liquid crystal response time, γ represents the coefficient of viscosity of liquid crystal material, and d represents liquidCrystal display screen gap, V represents the driving voltage of liquid crystal indicator, Δ ε represents liquid crystal materialDielectric coefficient.
From above-mentioned formula, the liquid crystal response time is with between the coefficient of viscosity of liquid crystal, LCDsGap is directly proportional, and is inversely proportional to the dielectric constant of liquid crystal indicator driving voltage, liquid crystal material.
For a liquid crystal display of having manufactured, its LCDs gap is certain; Liquid crystal display dressThe driving voltage of putting or amplification are also certain, and the coefficient of viscosity of liquid crystal material and dielectric constantAlso all directly relevant to the characteristic of liquid crystal material itself, research staff is through development test repeatedly,Adopt a kind of liquid crystal material stable and that can meet liquid crystal response time requirement to manufacture demonstrationScreen, but in fact, its stability characteristic (quality) also only can be maintained within the specific limits, and most ofLiquid crystal indicator is 0 DEG C below degree time in ambient temperature, and its coefficient of viscosity and dielectric are normalThe ratio of number can increase, therefore corresponding, under low temperature condition, and the liquid crystal of liquid crystal indicatorResponse time is also thereupon elongated.
The mode that 3D shows has a variety of, and wherein a kind of extensive utilization and the mode with fine definition areActive-shutter 3D technology. Active-shutter 3D technology is mainly the refresh rate by improving pictureRealize 3D effect, specifically by image is divided into two frame by frame, form corresponding left eye and the right sideTwo a series of paintings faces of eye,Staggered showing continuously, meanwhile, synchronous signal transmitter is by Synchronization Control shutter type 3 D spectaclesLeft and right eyeglass switch, make left and right eyes see respective picture in the correct moment, fromAnd in people's brain the image frame of compound stereoscopic, realize 3D function. Active-shutter 3D skillArt requires the liquid crystal response time of the liquid crystal indicator that shows image enough fast, otherwise, work as a left sidePicture is backlight while opening, and left eye mirror is opened simultaneously, if now the liquid crystal of liquid crystal indicator ringsLonger between seasonable, backlight the opening not yet completely of left picture, left image information is not obtainedFull demonstration, backlight the closing not yet completely of right picture also also has a secondary right image information simultaneouslyPart is residual, thus the information of right eye that caused seeing of left eye mistake crosstalk, 3D effectFruit variation. Therefore for active shutter 3D technology liquid crystal indicator, occur when the liquid crystal response timeWhen variation, if can give the one group of sequential matching with its liquid crystal response time making new advances thereupon, makeLeft picture is backlight to disappear completely at the right picture of a upper width, left picture is now and opens, and can improveDisplay effect.
Concerning liquid crystal indicator, environment for use temperature is very common situation below degree at 0 DEG C,Especially for northern China certain areas, a year limit thermal gradient energy reaches 80 DEG C, when winterEnvironment temperature often can reach subzero 20 DEG C-subzero 30 DEG C, corresponding, liquid crystal display nowThe liquid crystal response time of device also can be elongated. If liquid crystal response time meeting while considering low temperatureCorresponding elongated, thus set a kind of fixing sequential and dutycycle that is applicable to low temperature environment,Dutycycle backlight will be very low, thus cause liquid crystal indicator not low in environment temperature,Under short environment of liquid crystal response time, brightness is very low; If do not consider low temperature environment for use, andSet a kind of fixed time sequence that is applicable to the environment that environment temperature is not low, the liquid crystal response time is shortAnd dutycycle, while use under low temperature environment, the liquid crystal response time is corresponding elongated, now canCause and crosstalk and trail, image effect variation.
Summary of the invention
Main purpose of the present invention is to provide a kind of backlight adjusting method and device of liquid crystal indicator,According to the variation of the residing ambient temperature of liquid crystal indicator, generate and liquid crystal indicatorThe corresponding time sequence information backlight of liquid crystal response temporal information, thereby eliminate frame crosstalk and hangoverPhenomenon, obtains optimal display result.
The backlight adjusting method that the invention provides a kind of liquid crystal indicator, comprising:
Detect the residing ambient temperature of liquid crystal indicator, and acquisition and described ambient temperatureThe liquid crystal response temporal information of corresponding liquid crystal indicator;
According to described liquid crystal response temporal information and the residing display mode of current liquid crystal indicator, rawBecomeCorresponding time sequence information backlight;
According to the opening time of described time sequence information adjustable liquid crystal display backlight of display device backlight.
Preferably, in the time that described display mode is 3D pattern, the time sequence information backlight of described generation comprisesThe delayed data changing according to ambient temperature.
Preferably, in the time that described display mode is 3D pattern, the time sequence information backlight of described generation also wrapsDraw together the duty cycle information changing according to ambient temperature.
Preferably, in the time that described display mode is 3D pattern, according to described liquid crystal response temporal information andThe residing display mode of current liquid crystal indicator, generates corresponding time sequence information backlight and also comprises: LCD device backlight is divided into multiple independent control areas, generates and comprise and liquid crystalThe many groups of time sequence informations backlight that the liquid crystal response time of showing device matches.
Preferably, in the time that described display mode is 2D pattern, according to described liquid crystal response temporal information andThe residing display mode of current liquid crystal indicator, generates corresponding time sequence information backlight and also comprises: whether the liquid crystal response time that judges liquid crystal indicator is less than the critical response time, is notGenerate new time sequence information backlight, opening time backlight does not adjust.
Preferably, in the time that described display mode is 2D pattern, according to described liquid crystal response temporal information andThe residing display mode of current liquid crystal indicator, generates corresponding time sequence information backlight and also comprises: in the time that the liquid crystal response time of liquid crystal indicator is greater than the critical response time, described generationTime sequence information backlight also comprises the delayed data changing according to ambient temperature.
Preferably, in the time that described display mode is 2D pattern, according to described liquid crystal response temporal information andThe residing display mode of current liquid crystal indicator, generates corresponding time sequence information backlight and also comprises: in the time that the liquid crystal response time of liquid crystal indicator is greater than the critical response time, described generationTime sequence information backlight also comprises the duty cycle information changing according to ambient temperature.
Preferably, the residing ambient temperature of described detection liquid crystal indicator, and obtain and described inBefore the liquid crystal response temporal information of the corresponding liquid crystal indicator of ambient temperature, also comprise: by ambient temperature and corresponding liquid crystal response temporal information corresponding stored.
The present invention also provides a kind of adjusting device backlight of liquid crystal indicator, comprising:
Memory module, for storage environment temperature and its corresponding liquid crystal response temporal information;
Temperature detecting module, for detection of the residing ambient temperature of liquid crystal indicator;
Processing module, for ringing according to described ambient temperature and described liquid crystal corresponding to described temperatureInformation generation time sequence information backlight between seasonable;
Control module, for opening according to described time sequence information adjustable liquid crystal display backlight of display device backlightTime.
Preferably, described processing module also comprises the identification to the residing display mode of liquid crystal indicator, identify described liquid crystal indicator and be operated in 2D pattern or 3D pattern;
Described processing module is also under 3D/2D pattern, raw respectively according to the variation of ambient temperatureBecome to include the time sequence information backlight of delayed data and duty cycle information.
The backlight adjusting method of liquid crystal indicator of the present invention comprises: detect liquid crystal indicator residingAmbient temperature, and the acquisition liquid crystal indicator corresponding with described ambient temperatureLiquid crystal response temporal information; According to described liquid crystal response temporal information and current liquid crystal indicatorResiding display mode, generates corresponding time sequence information backlight; According to described time sequence information backlightThe opening time of adjustable liquid crystal display backlight of display device. The present invention is according to ambient temperature and liquid crystalThe relation of response time, dynamically adjusts the backlight of liquid crystal indicator, can not only effectively improve aobviousShow brightness, can also effectively solve liquid crystal indicator at low temperatures due to liquid crystal response time mistakeLong, cause 2D to show that hangover is serious, 3D shows the large problem of crosstalking, use thereby improve userTime view and admire comfortableness.
Brief description of the drawings
Fig. 1 is the flow chart of backlight adjusting method one embodiment of liquid crystal indicator;
Fig. 2 is the schematic diagram of backlight adjusting method one embodiment under liquid crystal indicator 3D pattern;
Fig. 3 is the schematic diagram of another embodiment of backlight adjusting method under liquid crystal indicator 3D pattern;
Fig. 4 is the schematic diagram of the another embodiment of backlight adjusting method under liquid crystal indicator 3D pattern;
Fig. 5 is the flow chart of backlight adjusting method one embodiment under liquid crystal indicator 2D pattern;
Fig. 6 is the structural representation of adjusting device backlight one embodiment of liquid crystal indicator.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are done into one with reference to accompanying drawingStep explanation.
Detailed description of the invention
Further illustrate technical scheme of the present invention below in conjunction with Figure of description and specific embodiment. ShouldWork as understanding, specific embodiment described herein is only in order to explain the present invention, and is not used in limitDetermine the present invention.
With reference to Fig. 1, the flow chart of backlight adjusting method one embodiment that Fig. 1 is liquid crystal indicator; ThisInvention provides a kind of backlight adjusting method of liquid crystal indicator, comprising:
Detect the residing ambient temperature of liquid crystal indicator, and acquisition and described ambient temperatureThe liquid crystal response temporal information of corresponding liquid crystal indicator;
According to described liquid crystal response temporal information and the residing display mode of current liquid crystal indicator, rawBecome corresponding time sequence information backlight;
According to the opening time of described time sequence information adjustable liquid crystal display backlight of display device backlight.
The backlight adjusting method of liquid crystal indicator provided by the invention is according to ambient temperature and liquidThe relation of brilliant response time, dynamically adjusts the opening time of LCD device backlight, can not onlyEffectively solve liquid crystal indicator at low temperatures due to liquid crystal response overlong time, cause 2D aobviousShow that hangover is serious, 3D shows the large problem of crosstalking, can also effectively improve display brightness.
As shown in Figures 2 to 4, Fig. 2 is backlight adjusting method one embodiment under liquid crystal indicator 3D patternSchematic diagram; Fig. 3 is another embodiment's of backlight adjusting method under liquid crystal indicator 3D patternSchematic diagram; Fig. 4 is the former of the another embodiment of backlight adjusting method under liquid crystal indicator 3D patternReason figure; Further, in the time that described display mode is 3D pattern, the sequential backlight of described generationInformation also comprises the delayed data and the duty cycle information that change according to ambient temperature.
The mode that 3D shows has a variety of, and wherein a kind of extensive utilization and the mode with fine definition areActive-shutter 3D technology. Active-shutter 3D technology is mainly the refresh rate by improving pictureRealize 3D effect, concrete, by image is divided into two frame by frame, form corresponding left eye andTwo a series of paintings faces of right eye, staggered showing continuously, meanwhile, synchronous signal transmitter will be synchronousControl the left and right eyeglass switch of shutter type 3 D spectacles, make the left and right eyes can be in the correct momentSee respective picture, thus in people's brain the image frame of compound stereoscopic, realize 3D function。
As shown in Figure 2, because the liquid crystal of liquid crystal indicator has certain response time, therefore in order to make 3Left picture (left picture: be L part in figure) under D be not subject to a upper secondary right picture (right picture:R part in figure) disturb, the meeting backlight of left picture is in upper one secondary effective right Picture switch one timingBetween after open again, establish delay time t1, dutycycle backlight is TZ, switching cycle backlight isT1, TZ=ta/(ta+tb)，ta+tb=T1, described dutycycle TZLarger, 3D pattern lower backLight display brightness is higher, dutycycle TZLess, 3D pattern lower back light display brightness is less; Liquid crystalThe display brightness backlight of display unit is higher, and picture contrast is higher, and display effect relativelyGood, but from the principle of above-mentioned active shutter 3D formula technology, be the realization that ensures 3D function, must ensure does not have right eye image information in left eye picture, there is no left eye picture in right eye pictureInformation, therefore the liquid crystal response timeIn long situation, for preventing to crosstalk, should increase delay time t1, and corresponding adjustmentDutycycle TZ, can ensure good display effect.
If while now having considered low temperature, the liquid crystal response time can corresponding elongated this factor, and setsA kind of fixing sequential t that is applicable to low temperature environment1And dutycycle TZ, dutycycle T backlightZRelatively very low, thus cause that liquid crystal indicator is not low in environment temperature, the liquid crystal response timeUnder shorter environment, brightness is very low; If now do not consider this factor of low temperature environment for use, andSet a kind of while being applicable to environment temperature is not low, the liquid crystal response time is shorter environment fixingOrder t1And dutycycle TZ, while use under low temperature environment, the liquid crystal response time can be because of environment temperatureDegree reduce and corresponding elongated, fixed time sequence t now1And dutycycle TZAnd inapplicable, now leftThe also information of a residual upper right eye picture of picture of eye, on corresponding right eye picture is yet residualThe information of a left eye picture, causes and crosstalks and trail, image effect variation.
Therefore as shown in Figure 2, the present embodiment demonstration backlight adopt black insertion technology (refer at adjacent two frames orWithin number frame, insert the complete black frame of a frame, in order to reach the effect that increases totalframes, allow and originally dragThe picture of shadow becomes clear), and the liquid crystal response time corresponding according to actual ambient temperature, under dynamic regulation output 3D pattern, comprise time delay t1And dutycycle TZThe clock signal of information,Can export in real time the best picture that 3D shows, both ensure that crosstalking of 3D demonstration was very little, to the greatest extent can againCan raising the brightness that shows of 3D, the balanced best picture of output in real time. Its concrete adjustment is as follows, when according to the environment temperature that detects, inquire accordingly the liquid crystal response time when elongated,The corresponding delay time t that increases1, and make it be a bit larger tham the liquid crystal response time inquiring, immediatelyThe delay time t that must make new advances1With new dutycycle TZ, now delay time t1Increase dutycycleTZReduce, although dutycycle TZReduce cause the brightness that 3D shows to reduce, but delay time t1Increase crosstalking of effectively having ensured that 3D shows no longer occur, avoided the ghost image of 3D display framePhenomenon. In the time that the liquid crystal response time inquiring accordingly according to the environment temperature detecting shortens, shorten accordingly delay time t1, and make it be slightly smaller than the liquid crystal response time inquiring,The delay time t that must make new advances immediately1With new dutycycle TZ, now delay time t1Also reduce canEnsure not occur crosstalking of 3D demonstration, simultaneously dutycycle TZIncreasing the brightness that 3D is shown obtainsImprove.
As shown in Figures 3 and 4, in the time that described display mode is 3D pattern, during according to described liquid crystal responseBetween information and the residing display mode of current liquid crystal indicator, generate corresponding sequential backlight letterBreath also comprises: LCD device backlight is divided into multiple independent control areas, and generation comprisesMany groups of time sequence informations backlight that match with the liquid crystal response time of liquid crystal indicator.
With reference to Fig. 3, in the present embodiment, demonstration backlight also adopts black insertion technology, the back of the body of its liquid crystal indicatorIn light regulation method and above-mentioned Fig. 2, embodiment distinguishes part and is: need be by LCD device backlightBe divided into multiple independent control areas (backlight 1 backlight n), generate respectively regionalMany groups of opening time-delayings backlight and dutycycle. Its concrete control method is as follows: when basis detectsEnvironment temperature, inquire accordingly the liquid crystal response time when elongated, corresponding regulate backlightSequential, obtains new delay time t1…tn, and new dutycycle TZ1…TZn，TZ1…TZnEach value can be identical also can be different, now delay time t1+…+tnThe summation obtaining is to increaseLarge, and TZ1+…+TZnThe summation obtaining reduces, although the summation of dutycycle nowReduce, can make the brightness that 3D shows reduce, but the increase of the summation of delay time has effectively ensured 3DCrosstalking of showing no longer occurs, and avoided the ghost phenomena of 3D display frame. Accordingly, according toThe environment temperature detecting, inquires the liquid crystal response time while shortening, corresponding regulate backlightSequential, obtains new delay time t1…tn, new dutycycle TZ1…TZn, when now time delayBetween t1+…+tnThe summation obtaining reduces, TZ1…TZnEach value can be identical also can be different, and TZ1+…+TZnThe summation obtaining increases, although now delay time summation reducesBut also can ensure not occur crosstalking of 3D demonstration, the increase of dutycycle summation simultaneously shows 3DBrightness and contrast be improved.
With reference to Fig. 4, in the present embodiment and Fig. 3, the difference part of embodiment is: the present embodiment is backlight aobviousShow and do not adopt black insertion technology. But in the backlight adjusting method of its liquid crystal indicator and above-mentioned Fig. 3 oneCause, LCD device backlight need be divided into equally to multiple independent control areas (backlight 1Backlight n), generate respectively many groups of opening time-delayings backlight and the dutycycle of regional. It is concreteControl method is as follows: when the environment temperature that basis detects, the liquid crystal response inquiring accordinglyTime, when elongated, corresponding adjusting sequential backlight, obtained new delay time t1…tn，New dutycycle TZ1…TZn, now delay time t1+…+tnThe summation obtaining increases, TZ1…TZnEach value can be identical also can be different, and TZ1+…+TZnThe summation obtaining reducesAlthough now the summation of dutycycle reduces, can make the brightness that 3D shows reduce, delay timeSummation increase crosstalking of effectively having ensured that 3D shows and no longer occur, avoided 3D display frameGhost phenomena. Accordingly, according to the environment temperature detecting, the liquid crystal response time inquiringWhile shortening, corresponding adjusting sequential backlight, obtains new delay time t1…tn, and newDutycycle TZ1…TZn，TZ1…TZnEach value can be identical also can be different, t when now time delay1+…+tnThe summation obtaining reduces, and TZ1+…+TZnThe summation obtaining increases, thisAlthough time delay time summation reduce but also can ensure not occur that 3D shows crosstalks, duty simultaneouslyThe brightness and contrast who 3D is shown than the increase of summation is improved.
With reference to Fig. 5, Fig. 5 is the stream of backlight adjusting method one embodiment under liquid crystal indicator 2D patternCheng Tu; Further, in the time that described display mode is 2D pattern, during according to described liquid crystal responseBetween information and the residing display mode of current liquid crystal indicator, generate corresponding sequential backlight letterBreath also comprises: whether the liquid crystal response time that judges liquid crystal indicator is less than the critical response timeT0, be not generate new time sequence information backlight, opening time backlight does not adjust. Otherwise rawBecome to comprise the sequential letter backlight according to the delayed data of ambient temperature variation and duty cycle informationBreath. In the time of initial design liquid crystal indicator, can be according to the character of its liquid crystal material, and outerThe affect relation of boundary's environment temperature on its liquid crystal response time, determines a liquid crystal response timeCritical point, i.e. T of critical response time0, be less than T when the liquid crystal response time0Time, 2D display frameThe motion hangover of rapid movement object little, be not easy to be discovered, user can see normal aobviousShow picture; Be greater than critical response time T when the liquid crystal response time0Time, now 2D display frameThe motion hangover of rapid movement object is large, and its liquid crystal response time is longer, just can not presentNormal display frame, the time sequence information backlight of adjustment liquid crystal indicator that just need to be suitable.
Further, when inquiring the corresponding liquid crystal response time according to the ambient temperature detectingBe less than T0Time, now 2D pattern lower back light time order does not adjust. The backlight of liquid crystal indicator establishedBe decided to be Chang Liang, the brightness of now 2D display frame is very high.
Intelligible, if when inquiring corresponding liquid crystal response according to the ambient temperature detectingTime is greater than T0Time, the time sequence information backlight of described generation also comprises according to ambient temperature and becomingDelayed data and the duty cycle information changed. Now under 2D pattern, backlight open or method for closing can be joinedAccording to the backlight adjusting method under Fig. 3 D pattern, now the 1st frame picture under described 2D pattern corresponding toThe 1st frame picture of left eye under described 3D pattern, the 2nd frame picture under described 2D pattern is corresponding to instituteState the 1st frame picture of right eye under 3D pattern, corresponding, the 2N-1 frame picture under described 2D patternCorresponding to the N frame picture of left eye under described 3D pattern, the 2N frame picture pair under described 2D patternThe N frame picture of right eye under 3D pattern described in Ying Yu. Now open with certain dutycycle due to backlight, the brightness that 2D shows is reduced, but effectively reduces under 2D pattern due to the liquid crystal response timeLong, the serious phenomenon of trailing.
Further, the residing ambient temperature of described detection liquid crystal indicator, and acquisition and instituteThe liquid crystal response time of stating the corresponding liquid crystal indicator of ambient temperature also comprises before:By ambient temperature and corresponding liquid crystal response time corresponding stored. Concrete, at firstWhen design liquid crystal indicator,, according to the characteristic of reality liquid crystal material used, utilize liquid crystalResponse time tester, measures its temperature and this liquid crystal indicator under different external environmentsThe relation curve of liquid crystal response time, and matched storage.
With reference to Fig. 6, the structural representation of adjusting device backlight one embodiment that Fig. 6 is liquid crystal indicator; The present invention also provides a kind of adjusting device backlight of liquid crystal indicator, comprising:
Memory module 10, for storage environment temperature and its corresponding liquid crystal response temporal information; InstituteState the corresponding liquid crystal response temporal information of environment temperature and can specifically test acquisition by external equipment.
Temperature detecting module 20, for detection of the residing ambient temperature of liquid crystal indicator;
Processing module 30, for according to described ambient temperature and described liquid crystal corresponding to described temperatureResponse time information generates time sequence information backlight;
Control module 40, for beating according to described time sequence information adjustable liquid crystal display backlight of display device backlightETAD expected time of arrival and departure.
Described processing module 40 also comprises the identification to the residing display mode of liquid crystal indicator, knowsNot not described liquid crystal indicator is operated in 2D pattern or 3D pattern; Described processing module 40 alsoFor under 3D/2D pattern, generate respectively and include time delay letter according to the variation of ambient temperatureThe time sequence information backlight of breath and duty cycle information.
Concrete, the workflow of the adjusting device backlight of detailed description one liquid crystal indicator is as follows:
Described memory module 10 storage environment temperature and its corresponding liquid crystal response temporal information; DescribedThe corresponding liquid crystal response temporal information of environment temperature can specifically be tested acquisition by external equipment, asShown in table 1, but the environment temperature of described detection is not limited to temperature shown in table 1, and shouldComprise the ambient temperature range that described liquid crystal indicator likely uses.
Table 1
| Temperature (DEG C) | 45 | 40 | 30 | 20 | 10 | 0 | -10 | -20 | -30 |
| The liquid crystal response time | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 |
Described temperature detecting module 20 detects the actual residing ambient temperature of described liquid crystal indicator. And from described memory module 10, inquire about the liquid at this temperature according to detected actual temperatureThe liquid crystal response time of crystal device;
The liquid crystal response time that described processing module 30 bases inquire, and judge current liquid crystal display dressThe 2D pattern that is operated in or the 3D pattern of putting, calculate under this pattern best backlight open sequential andDutycycle, generates and comprises the delayed data and the duty cycle information that change according to ambient temperatureTime sequence information;
When described control module 40 is opened according to described time sequence information adjustable liquid crystal display backlight of display device backlightBetween, sending control instruction, described liquid crystal indicator receives described instruction and changes present modeUnder backlight switch time delay and dutycycle.
Technical scheme by the above embodiment of the present invention can find out, the present invention is according to external environment temperatureThe relation of degree and liquid crystal response time, generates and comprises the time delay letter changing according to ambient temperatureThe time sequence information of breath and duty cycle information, and according to the liquid crystal display of described time sequence information dynamic adjustmentsInstall opening time backlight; Generation comprises the time sequence information changing according to ambient temperature can beLCD device backlight switch process in, effectively solve liquid crystal indicator at low temperatures byThe 2D causing in liquid crystal response overlong time shows that hangover is serious, 3D shows the large problem of crosstalking. The time sequence information that generation comprises the duty cycle information changing according to ambient temperature also can be at liquidIn the process of crystal device switching backlight, effectively improve display brightness, make thereby improve userUsed time view and admire comfortableness.
The foregoing is only the preferred embodiments of the present invention, not thereby limit its scope of the claims, everyThe equivalent structure or the conversion of equivalent flow process that utilize description of the present invention and accompanying drawing content to do, directlyOr be indirectly used in other relevant technical fields, be all in like manner included in patent protection of the present inventionIn scope.
Claims (8)
1. a backlight adjusting method for liquid crystal indicator, is characterized in that, comprising:
Detect the residing ambient temperature of liquid crystal indicator, and acquisition and described ambient temperature phaseThe liquid crystal response temporal information of corresponding liquid crystal indicator;
According to described liquid crystal response temporal information and the residing display mode of current liquid crystal indicator, generateCorresponding time sequence information backlight;
According to the opening time of described time sequence information adjustable liquid crystal display backlight of display device backlight;
Under 3D/2D pattern, described time sequence information backlight comprises the time delay changing according to ambient temperatureInformation and duty cycle information;
Described according to liquid crystal response temporal information and the residing display mode of current liquid crystal indicator, generateThe step of corresponding time sequence information backlight comprises:
In the time that the liquid crystal response time is elongated, increase total delay time, reduce total dutycycle;
In the time that the liquid crystal response time shortens, shorten total delay time, increase total dutycycle.
2. the backlight adjusting method of liquid crystal indicator according to claim 1, is characterized in that,In the time that described display mode is 3D pattern, according to described liquid crystal response temporal information and current liquid crystal display dressPut residing display mode, generate corresponding time sequence information backlight and also comprise: by LCD device backlightBe divided into multiple independent control areas, generate and comprise with the liquid crystal response time of liquid crystal indicator and matchMany groups of time sequence informations backlight.
3. the backlight adjusting method of liquid crystal indicator according to claim 1, is characterized in that,In the time that described display mode is 2D pattern, according to described liquid crystal response temporal information and current liquid crystal display dressPut residing display mode, generate corresponding time sequence information backlight and also comprise: judge liquid crystal indicatorWhether the liquid crystal response time is less than the critical response time, is not generate new time sequence information backlight, backlightOpening time does not adjust.
4. the backlight adjusting method of liquid crystal indicator according to claim 3, is characterized in that,Whether the described liquid crystal response time that judges liquid crystal indicator is also less than after the step of critical response timeComprise: in the time that the liquid crystal response time of liquid crystal indicator is greater than the critical response time, generates and comprise basisThe time sequence information backlight of the delayed data that ambient temperature changes.
5. the backlight adjusting method of liquid crystal indicator according to claim 3, is characterized in that,Whether the described liquid crystal response time that judges liquid crystal indicator is also less than after the step of critical response timeComprise: in the time that the liquid crystal response time of liquid crystal indicator is greater than the critical response time, generates and comprise basisThe time sequence information backlight of the duty cycle information that ambient temperature changes.
6. the backlight adjusting method of liquid crystal indicator according to claim 1, is characterized in that,The residing ambient temperature of described detection liquid crystal indicator, and acquisition and described ambient temperature phaseBefore the liquid crystal response temporal information of corresponding liquid crystal indicator, also comprise: by ambient temperature and instituteCorresponding liquid crystal response temporal information corresponding stored.
7. an adjusting device backlight for liquid crystal indicator, is characterized in that, comprising:
Memory module, for storage environment temperature and its corresponding liquid crystal response temporal information;
Temperature detecting module, for detection of the residing ambient temperature of liquid crystal indicator;
Processing module, for according to described ambient temperature and described liquid crystal response corresponding to described temperatureTemporal information generates time sequence information backlight;
Control module, when according to the opening of described time sequence information adjustable liquid crystal display backlight of display device backlightBetween;
Described processing module also for, under 3D/2D pattern, according to the variation of ambient temperature respectivelyGeneration includes the time sequence information backlight of delayed data and duty cycle information;
Described processing module also for, in the time that the liquid crystal response time is elongated, increase total delay time, subtractLittle total dutycycle; In the time that the liquid crystal response time shortens, shorten total delay time, increase total dutycycle.
8. the adjusting device backlight of liquid crystal indicator according to claim 7, is characterized in that,Described processing module also comprises the identification to the residing display mode of liquid crystal indicator, identifies described liquidCrystal device is operated in 2D pattern or 3D pattern.
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| CN103617786B (en) * | 2013-12-03 | 2016-08-17 | 深圳Tcl新技术有限公司 | 3D liquid crystal indicator picture crosstalk prevention method and device |
| CN105208365B (en) * | 2014-06-20 | 2018-05-15 | 青岛海信电器股份有限公司 | One kind shows signal processing method, device and display device |
| CN105679256B (en) * | 2015-05-25 | 2018-03-06 | 深圳Tcl数字技术有限公司 | Dynamic adjustment backlight approach and device |
| CN108648706B (en) * | 2018-04-26 | 2021-05-18 | Oppo广东移动通信有限公司 | Liquid crystal display, method, apparatus and medium for controlling the same |
| CN108682400B (en) * | 2018-07-25 | 2020-06-19 | 北京小米移动软件有限公司 | Brightness adjusting method and device |
| CN110046068B (en) * | 2018-11-09 | 2023-08-22 | 创新先进技术有限公司 | Test method, device and equipment |
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