三星光扩散剂

SiliconeDiffusingAgentSiliconeDiffusingAgent--SLSLseriseserise––--SLSLseriseserise––SamsungSDISamsungSDICoreCore--TechnologyTechnology1.Selectionof1.SelectionofRawmaterialsRawmaterials2.Synthesisof2.SynthesisofMicroMicro--particleparticle3.Classification3.Classification4.Recoveryof4.RecoveryofSolidParticleSolidParticle5.Surface5.SurfaceTreatmentTreatment•Siliconeprecursor•Styrenicprecursor•Acrylicprecursor•Additives•Sol-gelprocess•Suspensionpoly’m•Emulsionpoly’m•Polydisperse:C.V.~50%•Mediumdisperse:C.V.~10%•Monodisperse•Highyield•Shortprocesstime•Continuousprocess•Non-grinding•Controllablesurfacereactivity•Controllablehydrophobicity•Controllable•Additives•Emulsionpoly’m•Monodisperse:C.V.~4%•Non-grindingprocess•Controllablesurfaceconductivity2345678024681012BeforeAfterSize(μμμμm)Number%



TechnicalReview:Sol-gelprocess



TechnicalReview:Sol-gelprocessEmulsion/SuspensionpolymerizationEmulsion/SuspensionpolymerizationSolSol--gelpolymerizationgelpolymerizationMechanismRadicalpolymerizationSteppolymerization(Hydrolysis/Condensation)IngredientsVinylmonomer,Initiator,Stabilizer,SolventMonomerw/functionalgroups,Catalyst,Solvent(H2O)Lowtemp,lowpressure,(Basedonsilica)HowtomakesiliconematerialsHowtomakesiliconematerialsConditionHightemp,mild/highpressureLowtemp,lowpressure,(sometimes,severeconditionneeded)ApplicationOrganicpolymer(vinylpolymer)Inorganicmaterials,polycarbonate,polyurethane,etc.AdvantageEasyscale-up,goodreproducibilityLowimpurity,mildoperationconditionDisadvantageHighImpurityDifficultscale-upLowyieldbybyproduct,stoichiometryKeyfactorInitiatoramount,Reactiontemp,Stabilizeramount,Chaintransferagent,etc.pH,metalimpuritiesOpticsfordiffusingagentOpticsfordiffusingagentApplicationtoLCDBLU
Lightdiffusers,whicharedispersedinmatrix,diffusing/prismsheetpolarizingfilmdiffusingplatelightsourcereflector
Lightdiffusers,whicharedispersedinmatrix,refractorscatterlighttomakeslightsourceinvisible.
Keyproperties:i)RefractiveIndexforhighrefractionii)ParticlesizeforhighMiescattering∆RI↑Size↓SLSeriesSLSeriesHighlymono-dispersedsiliconepowderGoodmiscibilitywithvariousresinsandsolventsParticlesizeanddistributioncanbecontrolledinrangeof0.1~10㎛.KeyFeatures*OSiO*O*RnRSiO3/2Micron-sizedsphericalparticleLowRefractiveIndexMaterialCrosslinkingstructureControllablehydrophobicsurf.Bio-compatibleLowfrictionalpropertyLightDiffusingandScatteringHighThermalStabilityGooddispersioninsolventWaterrepellencyandOilabsorptionViscositycontrolAnti-abrasionandSoft-feelSL-200MSLSL--200M200MParticleSizeDistributionSL-100MSLSL--100M100MParticleSizeDistributionGoodStability&Miscibilityinresin&binderSLSeriesSLSeriesb.coatinglayerb.coatinglayera.polymerresina.polymerresinOver300℃ofprocessingtemperature,SL-seriesarestable.Invariousorganicsolvent,SL-seriesareNOTdissolvedorswelled.SL-SeriesshowgoodmiscibilitywithvariouspolymerresinsandorganicsolventsSLSL--200M200MRepresentativehighperformancelightdiffusingagentOptimumparticlesizeandRI→Goodperformancetoshieldthebrightspotonlightdiffusingplate→Inputofbeaddecreasesby25%insame59%TT→M/S1stproductforBLUApplicationGoodthermalstabilityandoptimumsurfaceproperty→Preservingwhitecolorofpolymersheetinhightemp.processcondition→Preservingwhitecolorofpolymersheetinhightemp.processconditionDiffuserTTBeadwtLumin.YIUnit%%Cd/m2a.u.SL-200M59.02.054,1501.2Comp-A59.02.304,1211.9Comp-B59.02.564,1102.3Acrylic59.02.824,330-0.5*TestswereperformedunderSDI’sspecificcondition.**Polystyrenewasusedasamatrixmaterial.***Hazevaluesoftestspecimenswereinrangeof93.0~93.1%.AcrylicComp.BComp.ASDISL-200MExcellentshieldingperformancelightdiffusingagentAninputdecreaseby20~30%ascomparedwithSL-200M→Asincreaseshieldingperformance,wecandecreasegabdistancelightsourseanddiffusingplateDiffuserTTBeadwtLumin.SLSL--100M100MDiffuserTTBeadwtLumin.Unit%%Cd/m2SL-200M58.02.331,105SL-100M58.01.551,113*TestswereperformedunderSDI’sspecificcondition.**Polystyrenewasusedasamatrixmaterial.***Hazevaluesoftestspecimenswereinrangeof90.0~91.0%.WorldbestdiffusingperformancelightdiffusingagentDevelopingGradeDevelopingGrade:SL:SL--100MA100MAAninputdecreaseby20%ascomparedwithSL-100M→Worldbestperformance→Increasetheprocessabilityfordiffusingplate→Weguessthatimprovethemechanicalstrengthsuchasimpactstrengthandanti-grindDiffuserTTBeadwtLumin.Unit%%Cd/m2SL-100M58.01.671,052SL-100MA58.01.311,039DevelopingGradeDevelopingGrade:SL:SL--200L200LFree-FlowingandAlkali-ResistiveParticleSuper-hydrophobicsurface→Excellentwater/alkali-proofpropertiesLesssurfacecharge→GoodflowabilityThesameopticalpropertyasSL-200MSL-200MSL-200L150㎛mesh&VibratingThesameopticalpropertyasSL-200M→ApplicabletoAGcoatingapplicationSL-200MSL-200LDiffuserAppearanceHaze(%)TT(%)AlkaliTestSL-200LTransparent26.190OKSL-200MTransparent26.190FailCoatedSiO2Opaque25.041OKSL-200MSL-200LAfter30minofmixingwith20%NaOHsol’n*TestwasperformedbyAGcoatingsol’nmanufacturer.**Specialdispersionunitisusedformixing.PropertiesofSLPropertiesofSL--SeriesSeriesPropertyUnitSL-200MSL-100MRemarkMeandiameter㎛1.91.0C.V.%15-2025-35D