Nws paub tias txoj haujlwm ua haujlwm ntawm crt yog tias cov ntsiab lus fais fab tom qab ua lub zog thiab lub cathode zoo siab rau tawm ib qho hluav taws xob tam sim no. Lub xaim hluav taws xob tam sim no yog ceev los ntawm txheej hlau txheej nrog lub siab voltage, thiab lub lens yog teem rau tsim ib txoj hlua hluav taws xob zoo heev thiab ntaus rau ntawm lub ntsej muag fluorescent. Ua kom lub phosphor glow. Thiab txoj cai hauv crt yog txawv kiag li, lcd xav tau los ntawm sab nrauv ntawm lub teeb ci, thaum lub teeb ntawm lub teeb ntawm cov kua siv ua kua, cov kua siv ua kua yuav ua rau sab los yog ib qho tsis sib haum, zoo li lub LCD zoo li lub qhov rooj , xaiv lub teeb mus los tsis tau, peb tuaj yeem Pom ntxoov duab ntxoov duab ntawm qhov screen.
Tam sim no, cov kua hluav taws xob ua kua (mainstream liquid crystal display) yog ib qho yeeb yaj kiab (transgenor lcd) (tftlcd), uas yog ib qho kev sib txuas ntawm cov kua tshuaj siv thawj zaug. Tft kua Crystal muaj ib semiconductor hloov rau txhua pixel, thiaj li tswj txhua tus pixel, cov kua siv lead ua kua ntawm cov iav tft thiab xim xim txheej, thiab qhov voltage ntawm cov kua siv lead ua tau hloov los ntawm kev hloov cov voltage tus nqi ntawm cov kua siv lead ua kua. Kev tswj lub teeb ci dhau los thiab xim uas tshwm.
Cov kua siv lead ua kua feem ntau yog tsis muaj qhov hluav taws xob. Tom qab cov pa luam yeeb, ib feem ntawm nws hloov thiab ua opaque. Qhov kev hloov ntawm cov kua siv ua kua no feem ntau qeeb heev (ntau tshaj qhov no tom qab). Nyob rau xyoo 1992, emi tshaj tawm qhov tsim muaj lub tshiab kua tshuaj siv tshuab ua kua hluav taws xob (ferroelectriclcds). Qhov kom zoo dua cov roj ntsha cov kua ntxhuab hauv cov kua hluav taws xob yog cov lus teb kom sai, txog rau microseconds. Thiab tsis tas hloov cov hluav taws xob muaj peev xwm tswj tau tam sim no lub xeev, uas yog ntau lub zog, uas yog lub ntsiab lus tseem ceeb rau cov laptops, pda thiab lwm yam cuab yeej siv tau. Muaj ntau yam zoo ntawm flcd, tiam sis muaj qee cov khoom hauv lub khw. Vim hais tias flcd yog kev nkag siab heev, nws yooj yim heev ua puas rau siv lead ua, tab sis nws yuav ua kom zoo dua yav tom ntej.
Txawm hais tias lub neej yav tom ntej ntawm cov kua siv crystal fluid tseem yog tsis paub, nws kuj muaj qhov zoo ntawm qhov sib txawv ntawm qhov sib luag thiab loj saib lub kaum ntse ntse, uas yuav ua rau muaj qee yam cuam tshuam rau kev ua lag luam tft hauv khw.
Thaum muaj kev kub ntxhov, kev flcd lub sijhawm teb tsuas yog 70us! Lub sij hawm luv luv no yuav luag negligible.
