Dab tsi yog cov qauv ntawm LCD zaub?
Tso lus
Nws cov tub ntxhais ua haujlwm ua haujlwm yog los tswj lub kaum sab xis ntawm cov kua siv lead ua cov molecules los ntawm kev thov lub xeev polarization ntawm lub teeb. Polaroids ces ua ib yam li "lub rooj vag" los txiav txim siab seb lub teeb puas tuaj yeem hla dhau ntawm txhua lub pixel. Ua ke nrog cov xim lim dej, cov xim ci ci tuaj yeem ua kom pom.
Ntawm no yog kev puas tsuaj ntawm ib txwmLcdTxheej txheej qauv los ntawm rov qab mus rau pem hauv ntej (los ntawm Backlight mus rau screen nto):
LCD Cov Qauv Txheej Txheem
Tshooj 1: Backlight Module
Nov yog lub qhov rooj "lub teeb ci" ntawm LCD, raws li ua kua muaj zog lawv tus kheej tsis tawm teeb.
1. Backlight:
· Fresh: CCFLS (khaub thuas Cathod fluorescent teeb), zoo ib yam li cov fluorescent me me, npaj rau ob sab lossis tom qab lub vijtsam.
Newsin: LEDs (lub teeb - emht diodes). Qhov no yog tam sim no lub ntsiab tseem ceeb thiab feem ntau muab faib ua ob txheej:
Ntug - Litrips yog ntsia ib ncig ntawm lub vijtsam bezel, tusyees faib rau lub vijtsam lub teeb. Txoj hauv kev no muaj qhov kom zoo dua.
Direct - LEDs yog tusyees tawm tsam thaj chaw, ua rau cov chaw muaj zog thiab tsaus nti thiab cov duab zoo. (Feem ntau siv nyob rau hauv high-} kawg tvs)
2. Lub teeb taw qhia phaj: (tsuas yog siv rau ntug - cov khoom siv teeb meem LED
3. Brightness Exchancement Film / Optical Film Group: ib pawg ntawm cov yeeb yaj kiab nyob rau sab saud lub teeb Phaj, siv los txhim kho thiab mloog lub teeb.
Diffuser: muab cov teeb pom kev zoo ntau dua, tshem tawm cov duab ntxoo los ntawm cov dots lossis leds. Prism / ci ntsa iab li zaj duab xis: tsom diffused teeb ncaj qha ncaj qha nyob rau hauv pem hauv ntej ntawm lub vijtsam, ua kom muaj kev ci ci ua ntej.
Qhov thib ob: LCD Vaj Huam Sib Luag Cev
Qhov no yog qhov tseem ceeb ntawm thev naus laus zis thiab feem ntau muaj ob lub iav sib txuas.
1. Qis khob substrate -}}} · ·}} · Qhov no yog qhov nyuaj tshaj plaws ntawm LCD. Nws tsis yog tiaj tus, tab sis hloov ntau lab lab ntawm me me {{}}} zaj duab xis} zaj duab xis}} zaj duab xis clistors siv siv cov photolithography. Txhua tus tranistor sib raug rau ib subpixel (liab, ntsuab, thiab xiav subpixels ua rau pixel). Txhua subpixel muaj pob tshab pixel electrode (feem ntau ito, indium tin oxide).
2. Sab saum toj iav Substrate- xim lim destrate, coj mus rau txhua sub- pixel, yog luam tawm liab, ntsuab thiab xiav xim. Cov ntxaij lim cov xim hla dhau los ntawm cov kua siv lead ua kua.
Nruab nrab ntawm cov ntxaij lim dej, muaj ib lub teeb dub dub, uas yog lub teeb {{}}}}} pixels, tiv thaiv tus ntoo khaub lig- xim, thiab txhim kho qhov sib piv thiab ua kom sib piv thiab ua kom sib piv thiab meej.
Sab hauv ib sab ntawm substrate yog them nrog ib qho electrode (kuj yog ib qho chaw ua yeeb yaj kiab ntawm cov hluav taws xob hauv qab txheej txheem hluav taws xob kom tsav cov kua siv ua kua.
3. Cov khoom siv Crystal Anger · Precision · precision · Txhawm rau tswj cov txheej txheem thawj zaug ntawm cov kua siv ua kua crystal molecules, txheej txheej sib ncag yog thov rau sab hauv ntawm lub sab saud thiab sab saud. Cov cim me me uas tau tsim los ntawm kev sib txhuam thiab lwm txoj hauv kev, tso cai rau cov kua ua kua crystal molecules los kho kom haum rau cov kev taw qhia tshwj xeeb.
4. FORTANT NCEJ THIAB LUB CAIJ · SIV SAUGTANTED RAU OB lub khob substrates ua ke thaum tuav tes ua kom meej. · Cov hnab yas npas lossis photolithographically tsim cov nkauj yog tawg nyob rau hauv lub xov tooj ntawm tes los tiv thaiv ob daim iav los tiv thaiv ua ke vim yog cov rog sab nraud.
Ntu 3: Lub Teeb "Rooj Vag" Thiab Kev Tswj Xyuas
1. Polarizers
Cov tsiaj las muaj ob polarizers, xws li ob lub rooj vag. "
· Bder Polinterizer: Txuas ntawm chav tsev Backlight thiab TFT substrate. Nws tsuas yog tso cai rau lub teeb nrog ib txoj kev vibration tshwj xeeb kom dhau mus.
.Upper Polarizer: Txuas rau cov xim lim substrate. Nws cov kev taw qhia polarization (lossis 0 degrees, nyob ntawm cov kua crystal hom) txiav rau hauv qis polarizer.
Cov txheej txheem tseem ceeb: thaum tsis muaj voltage tau thov, ua kua crystal molecules twist lub teeb ci ntsa iab ntawm 90 degree, pub rau tus pixel pom "ci." Thaum voltage yog thov, cov kua ua kua crystal molecules tsis sib ntswg lub teeb, thaiv nws los ntawm tus thib ob polinel, ua rau lub pixel tshwm sim "tsaus ntuj." Los ntawm kev tswj hwm tus voltage, ntxoov ntxoo ntawm grey tuaj yeem tswj tau meej.
Yog li ntawd, tus qauv ntawm LCD yog qhov system ntse uas tau sib txuas ua ke. Lub teeb dawb yog emitted los ntawm backlight, lim los ntawm tus polarizer, thiab xim los ntawm cov xim lim, thiab kawg los ntawm xim lim, thiab kawg ua cov xim pixel peb pom ntawm lub vijtsam.
