表層液晶取向行為的定量模擬研究.pdf

1、河北工業(yè)大學碩士學位論文表層液晶取向行為的定量模擬研究姓名：李曉鍵申請學位級別：碩士專業(yè)：理論物理指導(dǎo)教師：紀青201012表層液晶取向行為的定量模擬研究iiTTTTHEHEHEHEQUANTITATIVEQUANTITATIVEQUANTITATIVEQUANTITATIVEMDMDMDMDSTUDYSTUDYSTUDYSTUDYOFOFOFOFALIGNMENTALIGNMENTALIGNMENTALIGNMENTBEHAVIBEH

2、AVIBEHAVIBEHAVIOFOFOFOFLIQUIDLIQUIDLIQUIDLIQUIDCRYSTALCRYSTALCRYSTALCRYSTALATATATATAAAAPLOYMERPLOYMERPLOYMERPLOYMERSURFACESURFACESURFACESURFACEABSTRACTABSTRACTABSTRACTABSTRACTInphysicsitisdividedintothreestatesofmatterna

3、melysolidliquidgaseity.Liquidcrystalisdifferentfromtheliquidcrystalitisanindependentmaterialfm.Itnotonlyhastheliquidityofliquidbutalsohastheanisotropyofcrystal.Theientationofliquidcrystalmoleculesisoneofthekeytechnologyo

4、fliquidcrystaldisplayftheliquidcrystaldisplayalignmentcandirectlyimpactontheLCD’shomogeneitycolcontrastthresholdvoltageresponsetimeviewingangleotheracteristics.Accdingtothetheyofpolymeralignmentthatrubbingapolymersurface

5、createsgrooveswithaperiodoffractionsofamicrometerbutonamicroscopicscaleitisalsobelievedtoderthepolymerchainsthatlieinthesurfacebydrawingthemalongtherubbingdirection.alignmentisprimarilyduetomolecularinteractionbetweenLCm

6、oleculespolymerchainsaneffectthatalsousuallymakesthemoleculeslineupintherubbingdirection.Thegroovetheywasthatrubbinginducedgroovesinthesurfacethatwithplanaranchingthetopographyfavedalignmentinthedirectionofrubbingsincein

7、thatcasenobendingelasticenergywouldbeintroduced.ThispaperhaveusedGROMACStomeasurealigned5cbmoleculesonagroovesurface.Wemakethemodelthathaveagroovesurfacecontains5065cbmolecules.Sizeoftheupperhalfmodel9.06nm5.005nm3.17nm.