Tsev > Exhibition > Ntsiab lus

Txoj haujlwm ua haujlwm ntawm LED

Oct 21, 2017

Cov dej siv lead ua kua, kua siv lead ua kua, yog ib yam khoom tshwj xeeb heev. Nws yuav ntws ua kua thiab muaj qee cov khoom siv kho qhov muag ntawm cov nplais. Cov kua ua kua dej tau pom nyob rau xyoo 1888 los ntawm Austria scholar Reinitzer plant, yog kev sib tw ntawm cov khoom ua kua thiab cov kua, cov organic sib xyaw nrog cov kev tu ncua ntawm kev hloov, ib qho kev txiav txim siab ntawm cov kua ua kua dej ua kua, thiab cov kev hloov hauv lwm cov kev mob, kub, electromagnetic rhiab heev kaum. Nyob rau hauv tus qauv ntawm hluav taws xob, qhov kev hloov cov kua siv lead ua kua molecules yuav hloov, yog li cuam tshuam nws cov khoom kho qhov muag, qhov tshwm sim yog hu ua electro optic effect.

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Feem ntau nyob rau hauv ob lub iav substrate muab tso rau hauv cov xim sib dhos, xim siv los ua kom sib haum raws li cov nplhaib, iav substrate nrog cov nplaim hauv cov kua tshuaj pleev xim molecules ntawm 900, xws li nyob rau hauv tib lub dav hlau li cov qhov chaw nkaum ua ib tus zoo, thiab molecular nematic los ntawm ib theem mus rau lwm txoj kev hloov yuav maj mam tig 900, uas yog ob txheej molecules teem nyob hauv theem sib txawv ntawm 900. Qhov feem ntau hom hom nematic kua siv lead ua (nematic) kua siv lead ua, molecular cov duab rau cov kab xi pob tw, ntev thiab dav txog 1-10nm (1nm = 10Am), nyob rau txawv teb tam sim no, cov kua siv lead ua kua molecules ua txoj cai 90 degree kev hloov tshiab, ua qhov sib txawv ntawm qhov sib txawv, yog li qhov sib txawv ntawm qhov kaj thiab qhov ntxoov ntxoo nyob rau hauv lub hwj huam thiab tawm hauv kev ua raws li txoj cai no, txhua pixel, muaj peev xwm tshwm sim tawm yam duab.