LCD saib xyuas yog dab tsi?
Ua Kua Ua Kua Crystal Zaub (LCD) yog qhov tseeb tau zaub ua nrog ua kua siv lead ua cov zaub. Cov kua lead ua kua hauv LCD tsis emit teeb thaum ua haujlwm tab sis tswj hwm tus nqi sab nraud hla dhau. Thaum lub teeb sab nraud hla dhau cov ua kua lead ua kua crystal molecules tau txawv, thiab siv cov ntsiab lus tsaus nti, thiab siv cov ntsiab lus tsaus nti, thiab siv cov ntsiab lus tsaus nti Qhov loj me ntawm cov distortion ntawm cov kua crystal molecules yog txiav txim siab los ntawm cov hluav taws xob sib txawv, yog li kev hloov pauv ntawm lub teeb tuaj yeem pom tau, qhov ntawd yog, tus nqi ntawm lub teeb hla yog tswj los ntawm cov hluav taws xob voltage, yog li hloov cov hluav taws xob teeb liab mus rau hauv lub teeb liab kho qhov muag thiab ua kom pom cov duab.
Tsis txhob dag los ntawm lub vijtsam nyias. Txawm hais tias nws yog me me, nws muaj txhua qhov tsim nyog. Tus qauv sab hauv muaj ntau yam, tsuas yog siv ntawm cov vaj huam sib luag ua kua crystal thiab lub vaj huam sib luag. Ntawm no, Xiaozhan yuav ua rau koj paub. Lub LCD npo yog qhov tseeb uas tsis muaj lub teeb pom kev zoo-emitting hluav taws xob ntaus ntawv. Nws tsis muaj cov yam ntxwv ntawm lub teeb emission. Ob tus qauv yuav tsum sib haum rau ib leeg kom tau cov zaub ua haujlwm.
Vaj huam sib luag ua kua muaj cov duab ua kua yog muaj los ntawm cov duab kos duab, ib txheej sib xyaw, ib txheej ua kua, ua kua siv ua kua Crystal, ib lub dav hlau, ib qho chaw sib foob, Lub capacitor, ib txheej txheej, txheej txheem prism, txheej txheem kev sib txawv, thiab nws yuav tau nce lossis txo qis raws li kev siv cov kua crystal vaj huam sib luag. Lub Backlight module suav nrog lub teeb pom kev zoo, ib lub teeb pom kev zoo, ib lub teeb taw qhia phaj, ib qho txawv ntawm zaj duab xis (prism) thiab tus ncej.
Yog li ntawd, cov chaw tsim khoom ntau lawm ntawm vaj huam sib luag ua kua Crystal kuj tseem nruj heev. Nws tsuas yog cia siab rau cov khoom siv cov khoom siv rau ua kom zoo dua qub lawm, thiab cov rhiav dawb ua haujlwm tau siv. Nws xav tau kom yauv ntau qhov kev ntsuam xyuas thiab tshuaj xyuas ua ntej nws tuaj yeem suav hais tias yog cov khoom lag luam uas tsim nyog.
Ua Kua Crystal yog dab tsi?
Ua kua Crystal yog hom organic sib xyaw ntawm cov khoom thiab kua. Nyob rau hauv cov ntsuas kub li qub, nws muaj ob qho tib si fluidity ntawm kua thiab lub qhov muag anisotropy ntawm siv lead ua. Nws yuav dhau los ua cov kua pob tshab thaum ua kom sov thiab ua kua siv ua kua, thiab thaum txias, nws yuav tshwm sim hauv cov khoom siv tawv nqaij ntawm cov siv lead ua. Vim tias nws muaj cov yam ntxwv ntawm cov kua thiab siv lead ua, nws yog hu ua kua crystal.
Raws li kev nqis tes ua ntawm hluav taws xob teb, kev npaj ntawm cov kua siv lead ua cov kev hloov pauv, uas yuav cuam tshuam rau kev hloov pauv ntawm lub teeb lub teeb hla los ntawm cov kua siv lead ua kua. Qhov kev hloov no hauv lub teeb siv yog txuas ntxiv ua qhov hloov pauv ntawm lub teeb thiab tsaus los ntawm kev ua ntawm tus polarizer. Raws li qhov no, lub teeb tuaj yeem hloov hauv lub teeb thiab tsaus los ntawm kev tswj hluav taws xob ntawm cov ua kua crystal, thiaj li ua tiav lub hom phiaj ntawm cov ntaub ntawv. Yog li ntawd, lub luag haujlwm ntawm cov ntaub ntawv ua kua crystal yog zoo ib yam li ntawm cov me me "lub teeb me me". Vim tias muaj kev tswj cov voj voog thiab cov tsav tsheb ncig ncig cov kua cov khoom siv lead ua. Thaum cov electrodes hauv LCD tsim lub teb hluav taws xob, cov kua ua kua crystal molecules yuav ua kom tsis tu ncua ntawm lawv, thiab tom qab ntawd lim los ntawm kev sib tw thib ob ntawm polarizer thiab ua rau pom nws ntawm qhov screen.