IEC 62341-6-1-2017 有机发光二极管(OLED)显示器.第6-1部分光学参数及光电学参数的测量方法

EC62341-6-1:2017-01(en)

IEC62341-6-1

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Edition2.02017-01

INTERNATIONALSTANDARD

colour

inside

Organiclightemittingdiode(OLED)displays-

Part6-1:Measuringmethodsofopticalandelectro-opticalparameters

cEhheC

Nerepioastio

2IEC62341-6-1:2017@IEC2017

CONTENTS

FOREWORD

5

1Scope

7

2Normativereferences

7

3Terms,definitions,andabbreviatedterms

7

3.1Termsanddefinitions

7

3.2Abbreviatedterms

8

4Structureofmeasuringequipment

8

5Standardmeasuringconditions

8

5.1Standardenvironmentalconditionsformeasurements

8

5.2Standarddarkroomconditionsformeasurements

8

5.3Standardsetupconditions

9

5.3.1General

9

5.3.2AdjustmentofOLEDdisplaymodules

9

5.3.3Startingconditionsofmeasurements

9

5.3.4Measuringequipmentrequirements

9

5.4Standardlocationsofmeasurementfield

11

5.5Standardtestpatterns

11

6Measuringmethodsforopticalparameters

16

6.1Primaryluminance,colour,anduniformityoffull-colourhigh-resolution

modules

16

6.1.1Purpose

16

6.1.2Measuringconditions

16

6.1.3Measuringmethodforhigh-resolutionfull-colourmodules

16

6.1.4MaximumluminanceofwhiteandRGBprimaries

18

6.1.5AveragecolourofwhiteandRGBprimaries

18

6.1.6LuminanceuniformityofwhiteandRGBprimaries

19

6.1.7Colournon-uniformityofwhiteandRGBprimaries

19

6.1.8ColouradditivityofwhiteandRGBprimaries

20

6.1.9Whitecorrelatedcolourtemperature

20

6.2Primaryluminance,colour,anduniformityoflow-resolutionmodules

21

6.2.1Purpose

21

6.2.2Measuringconditions

21

6.2.3Measuringmethodforlow-resolutionmodulesandsegmenteddisplays

21

6.3Signalloading

21

6.3.1Purpose

21

6.3.2Measuringconditions

21

6.3.3Measuringmethods

21

6.4Darkroomcontrastratio

22

6.4.1Purpose

22

6.4.2Measuringconditions

22

6.4.3Measuringmethod

23

6.5Displaycolourgamut,colourgamutarea,andcolourgamutvolume

23

6.5.1Purpose

23

6.5.2Measuringconditions

23

6.5.3Measuringmethod

23

6.5.4Displaycolourgamut

24

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AnnexD(informative)Methodstoobtainthecorrelatedcolourtemperature(CCT)from

chromaticitycoordinates

33

AnnexE(informative)Measuringtheperformanceofmoderncolour-manageddisplays

andpanels 36

intheactiveareaofthedisplay

12

IEC62341-6-1:2017◎IEC2017—3—

6.5.5DisplaycolourgamutareainCIE1976chromaticitydiagram

24

6.5.6Colourgamutvolume

24

7Measuringmethodsforpowerconsumption

26

7.1Purpose

26

7.2Measuringconditions

26

7.3Measuringmethod

26

AnnexA(normative)Responsetimeofpassivematrixdisplaypanels

28

A.1Purpose

28

A.2Measuringconditions

28

A.3Measuringmethod

28

AnnexB(normative)Luminancecurrentefficiency

30

B.1Purpose

30

B.2Measuringconditions

30

B.3Measuringmethod

30

AnnexC(informative)Veilingglarefrustum

32

D.1Method1:usingMcCamy'sapproximateformula

33

D.2Method2:usingJavierHernandez-Andres'sapproximateformula

33

D.3Method3:graphicaldeterminationofcorrelatedcolourtemperature

34

E.1Legacydisplays 36

E.2Moderndisplays 36

E.3Results 38

E.4Conclusion 41

AnnexF(informative)Simplewindowluminanceandcolourmeasurements 42

F.1Background 42

F.2Measuringconditions 42

F.3Maximumfull-screenluminance 42

F.44%windowluminance 42

F.5Sampledluminancenon-uniformity 42

F.64%windowcentrecolour 43

F.7Sampledcolournon-uniformity 44

Bibliography 45

Figure1-Layoutdiagramofmeasurementsetup

10

Figure2-Standardmeasurementpositionsintheactiveareaofthedisplay

11

Figure3-Testpatternscalingusedtodefinetheareasizeofthecolouredrectangles

ildsrins

13

Figure5-Medium(top)andhigh(bottom)APLloadingversionsofCTRpattern

14

Figure6-StandardlowAPLRGBCMYtestpatternusedforcentreluminanceand

colourmeasurements

15

Figure7-OptionalmediumAPLRGBCMYtestpatternusedforcentreluminanceand

colourmeasurements

16

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FigureE.4-LowAPLloadingtestpatternwithsmallboxsize(1/9thescreensize

dimensions) 40

FigureE.5-APLloadingprofilesforseveralinputcoloursmeasuredatthecentreof

thetestpatternusingFigureE.4 41

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Figure8-Sequenceformeasuringluminanceandcolourattheninestandarddisplay

positionsforallcolouredtilepatterns

17

Figure9-Colourofblackbodysourceatvarioustemperaturesasrepresentedonthe

ClE1931chromaticitydiagram

20

Figure10-ExamplerepresentationofthesameprimarycoloursintheCIE1931(left)

andCIE1976(right)chromaticitydiagrams

24

Figure11-Exampleoftherangeofcoloursproducedbyagivendisplayas

representedbytheCIELABcolourspace

25

Figure12-Exampleofmeasurementsetupofpowerconsumption

27

FigureA.1-Relationshipbetweenthedrivingsignalandtheopticalresponsetimes

29

FigureB.1-Exampleofameasurementconfigurationformeasuringluminancecurrent

efficiency

31

FigureC.1-Patternforveilingglarefrustum

32

FigureD.1-CIE1931XYZchromaticitydiagram

34

FigureD.2-Blackbodylocus(Planckianlocus)andisotemperaturelinesinCIE1931

chromaticitydiagram 35

FigureE.1-Legacymodelwheretheindependentdriveelectronicsprovideadirect

correlationbetweentheinputRGBsignalsandthedisplayscolourprimaries 36

FigureE.2-Exampleofmoderndrivemodelsutilizingmulti-dimensionalLUTsfor

RGB(top)andmulti-primary(bottom)displays 37

FigureE.3-ExampleofAPLloadingbehaviourforaWRGB(top)andRGB(bottom)

OLEDdisplay 39

FigureF.1-Exampleofasimple4%whitewindowpatternatthecentreofthescreen……43

Table1-Standarddigital-equivalentinputsignalsforrenderingthewhite,primary

andsecondarycoloursintestpatterns

15

Table2-Exampleofluminancemeasuredofthesamecolourattheninestandard

screenpositionsandtheresultingluminancenon-uniformity

18

Table3-Exampleofthesamecolourmeasuredattheninestandardscreenpositions

andtheresultingchromaticitynon-uniformity

18

Table4-ScalingthesizeofthecolourboxesintheAPLloadingpatternrelativeto

thescreendimensions

22

Table5-Exampleofasummarysheetformodulepowerconsumptionmeasurements 27

TableD.1-Xe,Ye,Aiandt;forFormula(D.3)andFormula(D.4)

33

TableE.1-ExampleofluminancedataforanRGBandWRGBOLEDdisplay 38

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governmentalorganizationsliaisingwiththeIECalsoparticipateinthispreparation.IECcollaboratesclosely

agreementbetweenthetwoorganizations.

internationalco-operationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To

IEC62341-6-1:2017◎IEC2017—5—

INTERNATIONALELECTROTECHNICALCOMMISSION

ORGANICLIGHTEMITTINGDIODE(OLED)DISPLAYS-

Part6-1:Measuringmethodsofopticalandelectro-opticalparameters

FOREWORD

allnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectofIECistopromote

1)TheInternationalElectrotechnicalCommission(IEC)isaworldwideorganizationforstandardizationcomprising

TechnicalReports,PubliclyAvailableSpecifications(PAS)andGuides(hereafterreferredtoas“IEC

thisendandinadditiontootheractivities,IECpublishesInternationalStandards,TechnicalSpecifications,

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consensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentationfromall

interestedIECNationalCommittees.

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transparentlytothemaximumextentpossibleintheirnationalandregionalpublications.Anydivergence

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thelatter.

assessmentservicesand,insomeareas,accesstoIECmarksofconformity.IECisnotresponsibleforany

5)IECitselfdoesnotprovideanyattestationofconformity.Independentcertificationbodiesprovideconformity

6)Allusersshouldensurethattheyhavethelatesteditionofthispublication.

membersofitstechnicalcommitteesandIECNationalCommitteesforanypersonalinjury,propertydamageor

7)NoliabilityshallattachtoIECoritsdirectors,employees,servantsoragentsincludingindividualexpertsand

Publications.

8)AttentionisdrawntotheNormativereferencescitedinthispublication.Useofthereferencedpublicationsis

indispensableforthecorrectapplicationofthispublication.

9)AttentionisdrawntothepossibilitythatsomeoftheelementsofthisIECPublicationmaybethesubjectof

patentrights.IECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.

InternationalStandardIEC62341-6-1hasbeenpreparedbyIECtechnicalcommittee110:Electronicdisplaydevices.

Thissecondeditioncancelsandreplacesthefirsteditionpublishedin2009.Thiseditionconstitutesatechnicalrevision.

Thiseditionincludesthefollowingsignificanttechnicalchangeswithrespecttothepreviousedition:

a)extendstheapplicabilityofthemeasuringmethodstoincludeOLEDdisplaysthathavemulti-primaryorred,green,blueandwhitesub-pixels;

b)addsamethodtocharacterizehowtheluminanceisaffectedbytheamountofcontentonthescreen;

c)addsamethodtodeterminethedarkroomcolourgamutvolumeintheCIELABcolourspace.

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Thetextofthisstandardisbasedonthefollowingdocuments:

FDIS

Reportonvoting

110/816/FDIS

110/830/RVD

FullinformationonthevotingfortheapprovalofthisInternationalStandardcanbefoundinthereportonvotingindicatedintheabovetable.

ThisdocumenthasbeendraftedinaccordancewiththeISO/IECDirectives,Part2.

AlistofallthepartsintheIEC62341series,underthegeneraltitleOrganiclightemitting

diode(OLED)displays,canbefoundontheIECwebsite.

ThecommitteehasdecidedthatthecontentsofthisdocumentwillremainunchangeduntilthestabilitydateindicatedontheIECwebsiteunder"

http://webstore.iec.ch

"inthedatarelatedtothespecificdocument.Atthisdate,thedocumentwillbe

·reconfirmed,

·withdrawn,

·replacedbyarevisededition,or

·amended.

Abilingualversionofthispublicationmaybeissuedatalaterdate.

IMPORTANT-The'colourinside'logoonthecoverpageofthispublicationindicates

thatitcontainscolourswhichareconsideredtobeusefulforthecorrect

understandingofitscontents.Usersshouldthereforeprintthisdocumentusingacolourprinter.

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ORGANICLIGHTEMITTINGDIODE(OLED)DISPLAYS-

Part6-1:Measuringmethodsofopticalandelectro-opticalparameters

1Scope

ThispartofIEC62341specifiesthestandardmeasurementconditionsandmeasuringmethodsfordeterminingopticalandelectro-opticalparametersoforganiclight-emittingdiode(OLED)displaymodulesand,wherespecified,OLEDdisplaypanels.Thesemethodsarelimitedtoflatdisplaysmeasuredinadarkroom.

2Normativereferences

Thefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.

IEC60050-845,InternationalElectrotechnicalVocabulary-Part850:Lighting(availableat

)

IEC61966-2-1,Multimediasystemsandequipment-Colourmeasurementandmanagement-Part2-1:Colourmanagement-DefaultRGBcolourspace-sRGB

IEC62341-1-2,Organiclightemittingdiode(OLED)displays-Part1-2:Terminologyand

lettersymbols

IEC62341-6-2:2015,Organiclightemittingdiode(OLED)displays-Part6-2:Measuring

methodsofvisualqualityandambientperformance

CIE15:2004,Colorimetry,3rdedition

CIES014-1,Colorimetry-Part1:CIEStandardColorimetricObservers

3Terms,definitions,andabbreviatedterms

3.1Termsanddefinitions

Forthepurposesofthisdocument,thetermsanddefinitionsgiveninIEC60050-845,

IEC62341-1-2,andthefollowingapply.

ISOandIECmaintainterminologicaldatabasesforuseinstandardizationatthefollowingaddresses:

·IECElectropedia:availableat

·ISOOnlinebrowsingplatform:availableat

/obp

3.1.1

signalpixel

smallestencodedpictureelementintheinputimage

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3.1.2

pre-gammaaveragepicturelevel

averageinputlevelofallsignalpixelsrelativetoanequivalentwhitepixeldrivenbyadigitalRGBinput

op:eed,thepre-gammaaveragepicturelevel(APL)willsimplybereferredtoas

levelwouldbe100%APL.

Note2toentry:TheAPLwillnormallybeexpressedasapercentage,whereafullwhitescreenatmaximumdrive

3.2Abbreviatedterms

APL

CCT

CIE

CIELAB

CMY

DUT

LMD

LUT

PMOLED

averagepicturelevel

correlatedcolourtemperature

Commissioninternationaledel'éclairage(InternationalCommissiononIHlumination)

CIE1976(L*a*b*)colourspace

yellow

cyan,magenta,and

deviceundertest

light-measuringdevice

look-uptable

passivematrixorganiclight-emittingdiode

RGB

RGBCMY

sRGB

UCS

WRGB

red,green,andblue

yellow

red,green,blue,cyan,magenta,and

standardRGBcolourspaceasdefinedinIEC61966-2-1

uniformchromaticityscale

white,red,green,andblue

4Structureofmeasuringequipment

Thesystemdiagramsand/oroperatingconditionsofthemeasuringequipmentshallcomplywiththestructurespecifiedineachitem.

5Standardmeasuringconditions

5.1Standardenvironmentalconditionsformeasurements

Measurementsshallbecarriedoutunderstandardenvironmentalconditionsatatemperatureof25°C±3°℃,atarelativehumidityof25%to85%,andatanairpressureof86kPato106kPa.Whendifferentenvironmentalconditionsareused,theyshallbenotedinthereport.

5.2Standarddarkroomconditionsformeasurements

Theluminancecontributionfromunwantedbackgroundilluminationreflectedoffthetestdisplayshallbelessthan1/20ofthedisplay'sblackstateluminance.Iftheseconditionsarenotsatisfied,thenbackgroundsubtractionisrequiredanditshallbenotedinthetestreport.Inaddition,ifthesensitivityoftheLMDisinadequatetomeasure1/20oftheblacklevel,thenthelowerlimitoftheLMDshallbenotedinthetestreport.

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coordinatesbyacolorimeter.Aspectroradiometercanalsoobtainphotometricand

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5.3Standardsetupconditions

5.3.1General

Standardsetupconditionsaregivenbelow.Anydeviationsfromtheseconditionsshallberecorded

5.3.2AdjustmentofOLEDdisplaymodules

Thedisplayshallbemeasuredatitsfactorydefaultsettings.Ifothersettingsareused,theyshallbenotedinthetestreport.Thesesettingsshallbeheldconstantforallmeasurements,unlessstatedotherwise.Itisimportant,however,tomakesurethatnotonlytheadjustmentsarekeptconstant,butalsothattheresultingphysicalquantitiesremainconstantduringthemeasurement.Thisisnotautomaticallythecasebecauseof,forexample,warm-upeffects.

5.3.3Startingconditionsofmeasurements

MeasurementsshallbestartedaftertheOLEDdisplayandthemeasuringinstrumentsachievestability.Itisrecommendedthat,whenthedisplayisfirstturnedon,itbeoperatedforatleast30minwithaloopofcolourpatternsrenderedonthescreen.Sufficientwarm-uptimehasbeenachievedwhentheluminanceofthetestfeaturetobemeasuredvariesbylessthan±3%overtheentiremeasurementmethodforagivendisplayimage.

5.3.4Measuringequipmentrequirements

Generalconditions

Lightmeasurementsshallgenerallybemeasuredintermsofphotometricorcolorimetricunits

measuredbyaphotometer,andCIEtristimulusvalues(X,Y,Z)orCIEchromaticity

foraCIE1931standardcolorimetricobserverasdefinedinCIES014-1.Luminancecanbe

colorimetricvaluesthroughanumericalconversionofthemeasuredspectralradiancedata

(seeforexample[1]1).Non-contactLMD,wheretheLMDisnotindirectcontactwiththe

screen,shallbeusedwithoutanilluminationsource.Thefollowingrequirementsaregivenfor

theseinstruments:

a)TheLMDshallbealuminancemeter,acolorimeter,oraspectroradiometer.Thespectroradiometershallbecapableofmeasuringspectralradianceoveratleastthe380nmto780nmspectralrange,withamaximumbandwidthof10nmforsmoothbroadbandspectra.ForOLEDprimarieswithbandwidth≤25nm,themaximumbandwidthshallbe≤5nm.Thespectralbandwidthofthespectroradiometershallbeanintegermultipleofthesamplinginterval.Forexample,a5nmsamplingintervalcanbeusedfora5nmor10nmbandwidth.

CareshallbetakentoensurethattheLMDhasenoughsensitivityanddynamicrangetoperformtherequiredtask.ThemeasuredLMDsignalshallbeatleasttentimesgreaterthanthedarklevel(noisefloor)oftheLMD,andnogreaterthan85%ofthesaturationlevel.

b)TheLMDshallbefocusedontheimageplaneofthedisplayandgenerallyalignedperpendiculartothedisplaysurfaceatthecentreofthemeasurementfield,unlessstatedotherwise.

c)Therelativeuncertaintyandrepeatabilityofallthemeasuringdevicesshallbemaintainedbyfollowingtheinstrumentsupplier'srecommendedcalibrationschedule.

d)TheLMDintegrationtimeshallbeanintegernumberofframeperiods,synchronizedto

theframerate,ortheintegrationtimeshallbegreaterthanonehundredframeperiods.

1NumbersinsquarebracketsrefertotheBibliography.

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e)IfLMDmeasurementsaretakenfordisplayswithimpulsedrivingordutydriving,thehighpeakluminanceofthesedisplayscancausedetectorsaturationerrors.Theaccuracyofthesemeasurementscanbecheckedbyattenuatingthelightwithaneutral-densityfilter.Ifthechangeinsignalamplitudeofthedetectorisproportionaltothetransmittanceoftheneutral-densityfilter,thentherearenodetectorsaturationerrors.Thismethodisformeasuringthemaximumtime-averagedfull-screenluminance.

WhenusingLMDs,straylightwithintheLMD(e.g.lensflare,veilingglare)andnon-uniformitiesofsensitivityacrossthedetectorareashouldbeconsidered.

InadditiontoLMDsthatformanaveragevalueforthemeasuredquantityoverthemeasurementfieldunderconsideration(i.e.spotphotometers,Figure1),thereareimagingLMDswhichgiveavalue(oranarrayofvalues,e.g.R,GandB)foreachindividualarea-elementontheDUT.SuchLMDscanreplaceasequentialmechanicalscanofthesurfaceofadisplaybyanimageoftheentireactiveareaoftheDUT,andasubsequentevaluationofthedata.

WhenimagingLMDsareused,aflat-fieldcorrectionshallbeappliedtotheLMDatthemeasuringdistance.

IEC

Figure1-Layoutdiagramofmeasurementsetup

Highpixelcountmatrixdisplays(2320×240pixels)

Thefollowingappliesforhighpixelcountmatrixdisplays.

a)Whenmeasuringmatrixdisplays,thelight-measuringdevicesshouldbesettoameasurementfieldthatincludesmorethan500pixels.ForLMDswithacircularmeasurementfield,thiswouldbeequivalenttoadiskwithadiametergreaterthan25displaypixels.Ifsmallermeasurementareasarenecessary,photometricandcolorimetricequivalenceto500pixelsshallbeconfirmedandnotedinthetestreport.

b)Forsmalldisplays,therecommendedmeasuringdistanceisbetween20cmto50cm.Forlargerdisplays,themeasurementareashallcontainatleast500pixels.Themeasuringdistanceshallbenotedinthereport.

c)Theangularapertureshallbelessthanorequalto5°,andthemeasurementfieldangleshallbelessthanorequalto2°(seeFigure1).

d)Thedisplayshallbeoperatedatitsdesignfieldfrequency.Whenusingseparatedrivingsignalequipmenttooperateapanel,thedriveconditionsshallbenotedinthereport.

Lowpixelcountmatrixdisplays(<320×240pixels)andsegmenteddisplays

Thefollowingappliesforlowpixelcountmatrixdisplays.

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a)Lowpixelcountdisplaysmaycontainfewerthan500pixels.Whenthenumberofpixelsinthemeasurementfieldislessthan500,itshallbenotedinthereport.Theangularapertureshallbelessthanorequalto5°,andthemeasurementfieldangleshallbelessthanorequalto2°.Themeasurementconditionsusedshallberecorded.

b)Forsegmentdisplays,theangularapertureshallbelessthanorequalto5°,andthemeasurementfieldangleshallbelessthanorequalto2°.Allmeasurementsshallbeperformedatthecentreofasegmentwiththemeasurementfieldcompletelycontainedwithinthesegment.

c)Forsmalldisplays,therecommendedmeasuringdistanceisbetween20cmto50cm.Forlargerdisplays,followthemanufacturer'srecommendedviewingdistance.Forlargerdisplays,themeasurementareashallcontainatleast500pixels.Themeasuringdistanceshallbenotedinthereport.

5.4Standardlocationsofmeasurementfield

Luminance,spectraldistributionand/ortristimulusmeasurementsmaybetakenatseveralspecifiedpositionsonthedisplay'ssurface.ThestandardmeasurementlocationsareidentifiedbypositionsPitoPgintheactivearea,asillustratedinFigure2.Theactivescreenareaisdividedintonineequal-sizedboxes,withthemeasurementareacentredwithineachboxandidentifiedbythecorrespondingnumberingshowninFigure2.Eachboxis1/3ofthewidth(W)andheight(H)oftheactivearea.CentrescreenmeasurementsaretakenatpositionPs.Thedisplayordetectorshallbetranslatedinthehorizontalandverticaldirectionstoperformmeasur