Vim tias lawv lub teeb kis tau tus mob tuaj yeem txhob txwm hloov pauv raws li kev ua haujlwm ntawm kev siv hluav taws xob sab nraud, cov kua dej nematic yog siv nyob rau hauv alphanumeric kua-crystal displays (LCD s), xws li cov pom hauv digital wristwatches thiab ntau tus neeg siv khoom siv hluav taws xob
Vim li cas thiaj siv nematic kua siv lead ua?
Nematics muaj fluidity zoo ib yam li cov kua dej zoo tib yam (isotropic) tab sis lawv tuaj yeem yooj yim ua raws li cov hlau nplaum sab nraud lossis hluav taws xob. Aligned nematics muaj cov khoom kho qhov muag ntawm uniaxial crystalsthiab qhov no ua rau lawv muaj txiaj ntsig zoo hauv cov kua siv lead ua kua (LCD).
Nematic kua crystals muab piv txwv li cas?
Nematic Kua Crystals
Lawv muaj cov yam ntxwv zoo nkauj thaum saib hauv qab lub teeb pom kev zoo polarized. Cov ntaub ntawv no yog birefringent thiab tso cai rau lub teeb nrog sib txawv polarizations mus ntawm qhov sib txawv ceev. Ob qho piv txwv yog cyanobiphenyls thiab lwm qhov nrog cov pawg nruj thiab mantle hauv lub cev
siv lead ua kua siv nyob qhov twg?
Cov kua siv lead ua kua muaj nyob txhua qhov chaw. Lawv tau siv rau hauv txhua yam khoom siv suav nrogkhoos phis tawj saib thiab cov ntxaij vab tshaus laptop, TVs, moos, visors, thiab navigation systemsTxhua pixel hauv lub saib yog kev sib dhos ntawm cov kua muaju tswj los ntawm nws tus kheej. electromagnetic teb.
Dab tsi yog siv rau cov kua siv lead ua kua?
Kev tsim cov kua siv lead ua kua (LCDs) hauv xyoo 1970 tau ua rau muaj kev tawg hauv kev tshawb pom cov ntaub ntawv ua kua crystalline. Niaj hnub no, cov khoom zoo li no nyob ib puag ncig peb. Lawv siv nyob rau hauv muaj zog fibers, ntsuas kub, thiab kho qhov muag pom.
