Lub hauv paus ntsiab lus ua haujlwm ntawm cov kua siv lead ua kua:
Nyob rau hauv qhov kev txiav txim ntawm lub teb hluav taws xob, cov kev taw qhia ntawm cov kua siv lead ua kua molecules hloov mus hloov lub teeb transmittance ntawm lub sab nraud lub teeb qhov chaw (modulation), ua kom tiav cov hluav taws xob-optical conversion, thiab ces siv qhov sib txawv excitations ntawm peb thawj xim. Cov cim qhia ntawm R, G thiab B kom dhau qhov liab thiab ntsuab, Xiav peb thawj xim lim zaj duab xis, ua kom tiav cov xim luam tawm ntawm lub sijhawm sau npe thiab chaw sau npe.
Vim tias muaj cov tswj Circuit Court thiab tsav circuits nyob ib ncig ntawm cov khoom siv lead ua kua. Thaum cov electrodes nyob rau hauv LCD tsim ib qho hluav taws xob teb, cov kua siv lead ua kua molecules yuav twisted, thiaj li hais tias lub teeb dhau los ntawm nws yuav tsis tu ncua refracted (optical rotation ntawm cov kua siv lead ua kua), thiab ces lim los ntawm ob txheej polarizer. thiab tso tawm rau ntawm qhov screen.
Cov kua siv lead ua kua muaj cov yam ntxwv ntawm lub cev nyias thiab qhov chaw txuag. Piv nrog rau ntau qhov loj CRT zaub, cov kua siv lead ua kua tsuas yog xav tau ib feem peb ntawm qhov chaw qub; nws txuag hluav taws xob thiab tsis tsim kom muaj qhov kub thiab txias. Nws yog cov khoom siv hluav taws xob tsawg. CRT saib tuaj yeem ua kom tsis kub; tsis muaj hluav taws xob, uas yog qhov zoo rau kev noj qab haus huv, thiab cov saib LCD yog tsis muaj hluav taws xob tag; daim duab yog mos thiab tsis ua mob qhov muag.
