Ntu lcd yog ib qho yooj yim digital zaub screen uas yog ib lub vaj huam sib luag tiaj tus. Cov ntu lcd zaub yog cov khoom lag luam tseem ceeb hauv xyoo 1960 thiab tau tsim thawj zaug hauv Nyiv. Cov thev naus laus zis tau qhia rau Tuam Tshoj hauv xyoo 1980s. Nyob rau hauv thaum ntxov hnub, LCD cov ntxaij vab tshaus tau tsuas yog siv los hloov LED cov raj, thiab cov ntsiab lus tso tawm feem ntau yog cov lej thiab cov duab yooj yim. Hauv kev lag luam LCD, me me - qhov loj me me ntu cov ntxaij vab tshaus feem ntau hu ua cov duab LCD cov ntxaij vab tshaus kom paub qhov txawv ntawm dot matrix LCD cov ntxaij vab tshaus.
Lub lcd 7 ntu muaj peb ntu. Qhov thib ib yog ob lub iav substrates nrog pob tshab electrode qauv etched rau sab hauv, qhov thib ob yog cov kua siv lead ua kua txheej nyob rau hauv nruab nrab ntawm cov iav substrate, thiab qhov thib peb yog cov polarizer txuas rau sab nraud. Qee qhov nrog kev pom kev hmo ntuj kuj tseem yuav ntxiv qhov chaw teeb pom kev zoo. Thaum tsis muaj hluav taws xob siv, cov kua siv lead ua kua molecules yog ib txwm npaj, uas yuav thim rov qab cov kev taw qhia polarization ntawm qhov teeb meem teeb meem. Lub teeb tuaj yeem dhau los ntawm polarizer, thiab thaj chaw pom tau tias yog xim tom qab. Thaum muaj qhov sib txawv ntawm qhov sib txawv ntawm cov electrodes ntawm ib qho "seg", raws li kev tswj xyuas cov ntsiab lus ntawm 7-seg LCD cov ntaub ntawv cov ntaub ntawv .cov kua siv lead ua kua molecules rearrange lawv tus kheej nyob rau hauv qhov kev txiav txim ntawm lub hluav taws xob teb, tending mus rau tib lub sij hawm ntawm lub hluav taws xob teb, poob lub peev xwm mus twist cov kev taw qhia ntawm polarized lub teeb, thiab lub polarized teeb yuav tsis dhau. Qhov chaw "segment" tshwm tsaus nti, yog li tsim cov lej, cim lossis cim. Intermittent LCD cov ntxaij vab tshaus muaj cov yam ntxwv zoo li no, thiab tau siv dav hauv cov khoom siv digital rau cov khoom siv hluav taws xob me.
Yog tias koj xav paub ntau ntxiv, thov hu rau peb!
