LCD npo LCD module ua haujlwm

LCD npo LCD module ua haujlwm

Lub cev ntawm cov kua siv lead ua kua yog: thaum lub zog qhib, qhov kev hloov yuav ua kom raws li, kom lub teeb yooj yim dhau; thaum tsis muaj lub hwj chim, qhov kev kho no tsis muaj teeb meem, thiab qhov kaj tsis tiv thaiv tsis dhau. Cia LCD thaiv zoo li lub qhov rooj lossis cia lub teeb mus rau. Tev kev hais lus, lub vaj huam sib luag hauv LCD muaj ob hom ntaub iav uas tsis muaj ntsev tsis zoo uas hu ua Substrates nrog rau txheej hauv cov dej ua kua hauv nruab nrab. Thaum lub teeb nqaj dhau los ntawm cov kua siv lead ua kua, cov kua siv lead ua nws tus kheej yuav sawv los yog twv hauv ib qho tsis zoo, uas thaiv los yog tso cai rau lub teeb beam kom zoo. Feem ntau cov kua nplaum ua kua muaj cov organic complexes ntawm cov kabmob ntev li ntawm cov kabmob. Nyob rau hauv lub xeev ntuj, qhov ntev co taw ntawm cov pob zeb-puab molecules yog tshuam sib luag. Cov kua siv lead ua kua ua rau hauv lub cav zoo uas siv cov tshuab ua kom zoo, thiab cov kua siv lead ua kua molecules yog teem rau ntawm qhov zawj, yog li cov grooves tseem sib luag, cov molecules tseem ua kom tiav.

Cov dej ua kua yog ib qho organic compound uas pom cov kua fluidity ntawm ob qho tib si thiab cov tshuaj pleev qhov muag uas siv tau rau hauv qhov kub thiab txias, thiab yog li ntawd hu ua "crystal kua". Nyob rau sab nraud tej yam xws li hluav taws xob teb, hlau nplaum, kub, kev nyuab siab, thiab lwm yam. Nyob rau hauv tus cwj pwm, cov molecules yog yooj yim rearranged, thiab ntau yam khoom kho qhov muag ntawm cov kua siv lead ua hloov. Lub anisotropy ntawm cov kua siv lead ua kua thiab nws txoj kev haum molecular yog yooj yim tswj los ntawm cov ntawv thov fais fab thiab cov hlau nplaum. Nws yog lub hauv paus ntawm kev siv cov kua siv ua kua no. , uas yog, "hluav taws xob-kho pob nyhuv" ntawm cov kua siv lead ua kua, lub teeb yog hloov los ntawm lub teeb liab hluav taws xob, li tsim cov kua tshuaj siv ua kua. Nyob rau hauv qhov kev txiav txim ntawm cov chaw siv hluav taws xob sib txawv tam sim no, cov kua siv lead ua kua molecules yog ib txwm tig los ntawm 90 degrees los tsim qhov sib txawv hauv kev xa mus, yog li qhov sib txawv ntawm lub teeb thiab tsaus yog generated hauv lub hwj chim ON / OFF, thiab txhua pixel yog tswj raws li qhov no txoj cai rau ib daim duab xav tau.

Monochrome LCD txuj ci tseem ceeb

Los ntawm cov qauv ntawm cov kua siv lead ua kua, txawm nws yog ib lub computer los sis ib qho desktop, tus npo npo npo yog ib txheej qauv ntawm ntau qhov chaw. Tus LCD muaj ob iav daim hlau nrog lub thickness ntawm 0.7 hli, 0.63mm, thiab 0.5 hli (uas tseem yuav ua tau thinner los ntawm lub cev lossis tshuaj thinning), nrog lub cev tuab ntawm 3 ~ 5μm nrog cov kua siv lead ua (LC) cov khoom. Sib cais ua ke. Vim hais tias cov khoom siv lead ua kua nws tsis yog lub teeb tawm, nws yog qhov tsim nyog yuav tau teeb tsa ib lub teeb ci ntxiv rau qhov screen. Nyob rau sab nraum qab ntawm cov kua siv lead ua kua, nws muaj lub thawv ntawv qhia (lossis lub teeb nrig ntawm lub teeb) thiab lub yeeb yaj kiab. Qhov tseem ceeb ntawm lub teeb qhia ntawm lub teeb qhia yog hloov cov kab teeb ci los yog qhov taw qhia lub teeb ci. Lub teeb ci qhov chaw uas yog lub dav hlau rau lub dav hlau. Lub teeb ntawm lub teeb rov qab nkag cov kua siv lead ua kua tom qab dhau los ntawm thawj txheej ntawm polarizing lim. Cov tshuaj siv lead ua nyob rau hauv cov kua siv lead ua kua yog tag nrho muaj nyob rau hauv ib lub qauv me me, thiab ib lub los yog ntau lub hlwb tsim ib qho pixel ntawm qhov screen. Ntawm lub iav phaj thiab cov khoom siv lead ua kua yog lub pob tshab electrode, cov electrode tau faib ua cov kab thiab txhua kab, ntawm kev sib tshuam ntawm cov kab thiab txhua kab, hloov cov kev hloov hluav taws xob hloov lub xeev ntawm cov kua siv lead ua kua, cov kua siv lead ua cov khoom ua zoo li lub teeb me me. Nyob ib ncig ntawm cov khoom siv lead ua kua yog ib qho kev tiv thaiv kev tswj thiab ib qho kev tsav hluav taws xob. Thaum cov electrodes hauv LCD tsim hluav taws xob, cov kua siv lead ua kua molecules yog distorted, thiab lub teeb uas dhau ntawm lawv yog tsis tu ncua, thiab tom qab ntawd lim tau los ntawm txheej ob txheej ntawm cov lim txheej kom pom ntawm qhov screen.

LCD tshuab yog los ua cov kua siv dej ntawm ob lub dav hlau nrog nplua grooves. Cov grooves hauv ob lub dav hlau yog perpendicular rau txhua tus (tshuam ntawm 90 degrees). Qhov ntawd yog hais tias, yog tias cov lwg me me rau ntawm ib lub dav hlau mus rau sab qaum teb sab nraud, cov molecules ntawm lwm lub dav hlau tau npaj rau hauv cov kev taw qhia sab hnub tuaj-sab hnub poob, thiab cov xuab zeb nyob nruab nrab ntawm ob qho dav hlau raug yuam mus rau hauv lub xeev -tsis twist. Txij li thaum lub teeb pom kev zoo nyob rau hauv cov kev taw qhia nyob rau hauv uas lub molecules yog teem caij, lub teeb kuj yog sib ntswg los ntawm 90 degrees raws li nws kis los ntawm kua siv lead ua kua. Thaum twg ib qho hluav taws xob siv rau cov kua siv lead ua kua, cov kua siv lead ua kua molecules yuav tig hloov lub teeb lub zog, ua kom tiav ntau qhov grey zaub.

Lub LCD yog nyob ntawm lub thawv polarizing (hlais) thiab lub teeb nws tus kheej. Ntuj lub teeb yog tshwm sim rau txhua txoj kev qhia. Lub tshuab ua kom lub thawv polarizing yog ib qhov ua kom muaj kab sib txawv. Cov kab no ua ib qhov net uas thaiv txhua lub teeb uas tsis yog rau cov kab no. Cov kab ntawm cov roj thawv uas siv lub thawv polarizing yog raws nraim rau thawj qhov ib, yog li nws tuaj yeem thaiv qhov kaj uas tau polarized. Tsuas yog thaum cov kab ob ntawm cov ntxaij lim dej tiav tag nrho, los yog lub teeb nws tus kheej tau sib ntswg los ua kom pom ob lub tshuab thim ob sab, lub teeb tau nkag mus.

Lub LCD ua los ntawm ob qho sib txuam nrog cov duab ntxoov ntxoo rau sab nrauv, yog li ntawm txhua yam teeb meem uas ua rau kom nkag mus rau hauv yuav tsum tau thaiv. Txawm li cas los xij, txij li ob qho cov ntxaij lim dej uas muaj cov kua nplaum uas muaj kua nplaum, cov teeb ci tom qab dhau lub teeb thawj zaug, nws yog sib sib zog nqus los ntawm cov kua tshuaj molecules los ntawm 90 degrees, thiab thaum kawg dhau los ntawm ob lub lim.