Lub sijhawm hu ua dub thiab dawb lub sijhawm teb yog cov lus teb ceev ntawm txhua pixel ntawm cov kua siv lead ua kua zaub rau cov teeb liab tawm tswv yim, uas yog: lub sijhawm xav tau rau cov duab hloov ntawm qhov tsaus ntuj mus rau qhov kaj lossis los ntawm ci mus rau qhov tsaus ntuj (lub hauv paus ntsiab lus yog siv rau ntawm cov kua siv lead ua kua molecules Qhov voltage ua rau cov kua siv lead ua kua molecules twist thiab rov qab). Lub 25ms thiab 16ms peb feem ntau xa mus rau lub sijhawm teb no. Yog hais tias nws lub sij hawm teb luv luv, tus neeg siv yuav tsis muaj kev xav ntawm trailing ntxoov ntxoo nyob rau hauv daim duab dynamic ntawm Mao. Feem ntau, lub sij hawm teb dub thiab dawb tau muab faib ua ob ntu: lub sij hawm sawv thiab lub caij nplooj zeeg, thiab lub sij hawm qhia yog nyob ntawm qhov sib npaug ntawm ob.
Nyob rau hauv lub CRT zaub screen, ntev li ntev raws li lub electron beam hits lub phosphor, nws muaj peev xwm emit lub teeb tam sim ntawd, thiab lub sij hawm ntxiv ntawm lub ci yog luv heev, yog li lub sij hawm teb ntawm ntau tsoos CRT LCD screen tsuas yog 1 mus rau 3 ms. . Yog li-nws lub sijhawm teb yuav tsis hais los ntawm cov neeg hauv CRT LCD npo. Txij li thaum cov kua siv lead ua kua siv cov twisting ntawm cov kua siv lead ua kua molecules los tswj lub rau thiab tawm ntawm lub teeb, thiab kev sib tw ntawm cov kua siv lead ua kua molecules yuav tsum muaj txheej txheem, lub sij hawm teb ntawm lub LCD kua siv lead ua kua tshuaj ntsuam yog ho ntev dua li ntawm CRT. kua siv lead ua kua screen.
Los ntawm 25ms thaum ntxov mus rau cov neeg paub zoo 16ms mus rau 12ms tsis ntev los no lossis txawm tias 8ms, lub sijhawm teb tau luv luv, thiab cov tswvyim qub uas cov ntxaij vab tshaus LCD tsis haum rau kev lom zem tau raug kev sib tw. Peb tuaj yeem ua qhov hloov pauv yooj yim ua ntej: 30 milliseconds=1/0.030=33 thav duab ntawm cov duab raug tso tawm ib ob; 25 milliseconds=1/0.025=40 ntas ntawm cov duab yog tso tawm ib ob; 16 milliseconds=1/0.016=txhua thib ob 63 thav ntawv ntawm cov duab raug tso tawm hauv vib nas this; 12 milliseconds=1/0.012=83 thav duab ntawm cov duab raug tso tawm ib ob. Nws tuaj yeem pom tias yug ntawm 12ms txhais tau tias muaj kev vam meej loj hauv kev lag luam LCD.
Tab sis qhov peb yuav tsum tau them sai sai rau yog tias lub vijtsam LCD yuav muaj qhov txwv zaus, tshwj xeeb tshaj yog rau thaj tsam zaus (tseem hu ua tus nqi refresh), ntau yuav raug txwv rau 75Hz, thiab feem ntau, 75Hz Nws txhais tau tias refreshing 75 ntas. ib ob, yog li nws zoo nkaus li tias nws yuav tsis ncav cuag 83 thav ntawv ib thib ob sib raug rau 12ms.
Qhov tseeb, 12ms teb lub sij hawm peb tau hais los saum no yog lub sij hawm yuav tsum tau hloov ntawm tag nrho cov-dub thiab tag nrho-dawb duab. Cov duab tag nrho-dawb thiab tag nrho-dub no yuav tsum muaj kev tsav tsheb loj heev. Yog lawm, yog li qhov kev hloov pauv yuav nrawm dua, uas tuaj yeem ncav cuag 12ms; thiab hauv kev siv tiag tiag, feem ntau ntawm lawv tseem yog ib qho kev hloov ntawm hom greyscale duab (lub ntsiab lus yog tias cov kua siv lead ua kua tsis yog twisted kiag li, thiab lub teeb tsis tau xa mus tag nrho), qhov yuav tsum tau tsav tsheb voltage kuj tseem qis, yog li. lub switching ceev kuj qeeb. Yog li ntawd, txij li xyoo 2005, ntau lub tuam txhab tau pib hais txog qhov tseem ceeb ntawm grey-scale teb lub sij hawm, tab sis grey-scale teb lub sij hawm tuaj yeem txhim kho los ntawm lwm txoj kev tshwj xeeb, yog li tsis muaj qhov sib txawv ntawm grey-scale teb lub sij hawm thiab dub-thiab. - lub sij hawm teb dawb. Cov kev sib raug zoo yog sib npaug rau qhov tshiab parameter piav txog lub sij hawm teb.
Raws li cov ntaub ntawv, lub sij hawm teb yog 30 milliseconds=1/0.030=33 thav ntawv ntawm cov duab tuaj yeem tso tawm ntawm lub vijtsam LCD ib ob, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev ua si DVD; lub sij hawm teb yog 25 milliseconds=1/0.025=txhua thib ob Lub LCD npo tuaj yeem tso saib 40 ntas ib ob, uas tuaj yeem ua tau raws li qhov xav tau ntawm DVD playback thiab feem ntau ua si; Thaum ua si qhov kev ua si hnyav dua, nrawm nrawm thiab lwm yam kev ua si, koj xav ua kom tsis muaj qhov cuam tshuam, tom qab ntawd qhov xav tau ntawm lub vijtsam zaub ceev yuav tsum siab dua 60 thav duab ib ob, uas yog: lub sijhawm teb xav tau=1 / LCD npo tau tso saib 60 ntas ib ob=16.6 milliseconds.
