[Display Knowledge Nrov Science 4] Lub Ntsiab Lus Thiab Cov Qauv Ntawm Cov Kua Crystal Display

Cov kua siv lead ua kua zaub feem ntau yog tsim los ntawm lub teeb nraub qaum, lub vaj huam sib luag ua kua thiab lub voj voog tsav tsheb.

Koj tuaj yeem xav txog lub vaj huam sib luag LCD raws li cov qauv sandwich,

Ntawd yog, txheej txheej ntawm cov kua siv lead ua kua yog sandwiched ntawm ob lub tshuab polarizer uas nws cov lus qhia polarization yog perpendicular rau ib leeg.

LCD Structure Daim duab

Siv lub TN (Twist Nematic) vaj huam sib luag ua piv txwv,

Kev sib hloov ntawm cov kua siv lead ua kua tuaj yeem tswj tau raws li qhov kev txiav txim ntawm ib qho hluav taws xob sab nraud.

Tom qab lub teeb pom kev zoo dhau los ntawm polarizer (ib qho ntawm cov polarizers), nws dhau los ua lub teeb polarized nyob rau hauv txoj kab ntsug.

Tom qab lub teeb polarized dhau los ntawm TN cov kua siv lead ua kua uas tsis muaj zog thiab tswj xyuas qhov qub kev sib dhos,

Vim yog cov khoom siv kho qhov muag ntawm cov kua siv lead ua kua thiab cov txheej txheem ntawm cov kua siv lead ua kua molecules,

Yog li ntawd, lub polarization kev taw qhia ntawm lub teeb yog hloov ntawm ncaj mus rau kab rov tav.

Lub teeb polarized nyob rau hauv txoj kab rov tav yog ua raws li kev sib kis axis ntawm lub analyzer thiab kis tawm ntawm cov kua siv lead ua kua cell.

Hom kua siv lead ua kua hom no nyob rau hauv qhov teeb meem teeb pom kev tuaj yeem kis tau thaum tsis muaj hluav taws xob siv rau ob qho kawg ntawm cov kua siv lead ua kua hu ua" NormalWhite" (NW)

Ib yam li ntawd, yog tias qhov hluav taws xob raug siv rau cov kua siv lead ua kua,

TN hom kua siv lead ua kua yog muab faib los ntawm lub xeev kev sib tw mus rau lub xeev kev teeb tsa ntsug,

Nyob rau lub sijhawm no, qhov kev taw qhia polarization ntawm qhov xwm txheej linearly polarized lub teeb yuav tsis hloov,

Raws li qhov tshwm sim, nws cov kev taw qhia polarization yog perpendicular mus rau kis axis ntawm lub analyzer thiab raug thaiv,

Thaum kawg, tsis muaj lub teeb kis tau los ntawm cov kua siv lead ua kua cell.

Cov kua siv lead ua kua no hom uas qhov teeb meem tsis tuaj yeem kis tau thaum tsis muaj hluav taws xob siv rau ob qhov kawg ntawm cov kua siv lead ua kua hu ua" NormalBlack" (NB)

Yog li ntawd, nyob rau hauv txoj cai, cov kua siv lead ua kua yog ib qho kev hloov kho qhov muag uas tswj ON-OFF ntawm lub teeb kis tau los ntawm ON-OFF ntawm qhov hluav taws xob.

Lub hauv paus ntsiab lus ntawm cov kua siv lead ua kua saum toj no tsuas yog qhia tau hais tias qhov teeb meem tshwm sim yog kis los yog txiav tawm tag nrho, uas yog, lub teeb emission tsuas muaj ob lub xeev (lub xeev brightest thiab lub xeev tsaus).

Daim ntawv thov tiag tiag ntawm cov kua siv lead ua vaj huam sib luag yog los ntawm kev hloov pauv ntawm TFT, thiab txhua pixel yog inputted nrog ntau qhov sib txawv ntawm cov ntaub ntawv teeb liab voltage:

Lub xeev ntawm kev sib hloov ntawm cov kua siv lead ua kua molecules txawv nyob rau hauv txawv voltages, yog li qhov degree ntawm kev sib hloov ntawm linearly polarized lub teeb kuj txawv.

Cov khoom nyob rau hauv kis axis ntawm lub analyzer yog txawv, uas yog, lub brightness ntawm lub emission teeb yog txawv,

Nyob rau hauv no txoj kev, ib tug multi-grey-scale duab tso saib yuav pom tau hais tias.

Yog tias txhua pixel sib xyaw nrog cov xim lim (ColorFilter, CF), cov duab xim tuaj yeem pom tau.