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Cov kua siv lead ua kua

Jun 29, 2018

Cov kua siv lead ua kua

(2) TN (twisted nematic) qauv

TN hom yog qhov feem ntau siv hom nyob rau hauv cov lag luam tam sim no. Nws txoj kev txheeb ze yog zoo li daim duab 17.

 

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(a) tua qhov hloov (b) qhib qhov hloov

Daim duab 17. txoj haujlwm ua haujlwm ntawm TN qauv

Cov iav substrates thiab polarizers tau ua tiav nyob rau hauv qhov kev txiav txim ntawm kua siv lead ua qhov chaw. Tus lej ntawm txhua lub iav substrate yog tib yam li qhov sib kis ntawm lub ncov qaum rau ntawm ib sab (qhov no yog hu ua e-hom, uas yog hu ua o-mode yog qhov kev taw qhia ntawm qhov kev txuas ntxiv thiab lub teeb pliag yog mus rau ntawm lub nraub qaum Ntawm no yog tsuas yog hom e.). Qhov kev taw qhia ntxiv ntawm ob lub iav substrates yog sib tshab rau txhua tus. Yog li, cov kua siv lead ua kua molecules yog npaj nyob rau hauv cov kev taw qhia ntawm kev sib txuas ntawm cov nplais ntawm lub substrate, thiab hauv thaj av nruab nrab lawv tig rau hauv ib qho kev faib ua feem, li no hu ua nistatic. Los ntawm kev soj xyuas lub xeev irradiation ntawm ntxiv voltage thiab tsis muaj voltage, peb tuaj yeem nkag siab txog txoj haujlwm ua haujlwm ntawm TN LCD. Thaum cov pa taws tsis ntxiv, raws li tau piav saum toj no, thaum cov kua siv lead ua paug los ntawm ib qho qis rau lwm tus, nws tig ntawm ib qho kev faib ua feem thiab tig 90 degrees ntawm tag nrho. Lub teeb ntawm kev ua kom lub ntsej muag uas ua rau lub teeb tawm ntawm lub ncov ncov ncaj qha mus rau qhov kev sib nkag siab mus rau qhov kev taw qhia ntxiv. Yog hais tias cov kua siv lead ua kua rau hauv cov kua siv lead ua kua, lub sij hawm qeeb yuav raug tsim los ntawm kev sib raug zoo nrog cov kua siv lead ua kua. Yog tias cov kua siv lead ua kua los ntawm cov kua siv lead ua kua, qhov kev ncua sij hawm ncua sij hawm yuav yog 180 degrees, thiab thaum lub teeb ntawm kev pom teeb meem yog qhov teeb meem, nws yuav ua ntsug. No lub teeb yog ncaj qha los mus rau kev coj ua ntawm lub ncov qaum xaij tuaj yeem los ntawm lub ncov (dawb). (qee cov neeg tuav lub tswv yim tias txoj hlua sib pauv tau ua rau cov kua siv xaim ua rau tig cov lus siv dej ntawm cov dej ua kua, tiam sis nws tsis yog qhov tseeb lub tswv yim tom qab cov txiaj ntsim tau zoo. ces cov kua siv ua kua yuav ua rau lub qhov hluav taws xob, nws thiaj li yuav tsum tau mus rau sab nraud es tsis yog lub khob ntawm cov iav substrate. lub teeb uas yuav ua teeb meem rau cov kua siv lead ua kua, thiab nws yuav muaj feem xyuam nrog lub npov ntawm lub thawv rau sab nraud, kom lub teeb tsis tuaj yeem siv (dub).