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Kev Tsim Kho Thiab Ua Haujlwm Txoj Cai Ntawm LCD Zaub

Kev Tsim Kho Thiab Ua Haujlwm Txoj Cai Ntawm LCD Zaub

Aug 27, 2019

Cov kua siv lead ua kua lossis LCD rub cov lus txhais ntawm nws lub npe nws tus kheej. Nws yog kev sib xyaw ntawm ob qho xwm txheej ntawm cov khoom, lub zog thiab kua. LCD siv cov kua siv lead ua kua los ua kom pom cov duab. Cov lus qhia siv lead ua kua yog super-thin technology zaub screen uas feem ntau siv hauv laptop computer screen, TVs, xov tooj ntawm tes thiab portable ua si video. Cov thev naus laus zis thev naus laus zis tso cia ua kom pom tseeb dua thaum piv rau cathode ray tube (CRT) thev naus laus zis.

Cov kua siv lead ua kua yog tsim ntawm ntau txheej uas muaj ob txheej txheem polarized vaj huam sib luag lim thiab electrodes. Cov thev naus laus zis yog siv rau kev tso saib cov duab hauv phau ntawv sau lossis qee yam khoom siv hluav taws xob zoo li cov khoos phis tawj me. Lub teeb yog npaj los ntawm lub teeb ntawm ib txheej ntawm kua siv lead ua. Qhov kev sib xyaw ntawm cov xim dawb lias nrog cov duab xim grayscale ntawm cov siv lead ua (tsim los ua hluav taws xob tam sim no ntws los ntawm cov siv lead ua) ua rau cov duab xim. Cov duab no yog tso tawm kom pom ntawm qhov screen.


Ib LCD


Ib qho LCD yog ua los ntawm ib qho kev ua yeeb yam ntawm matrix lossis daim phiaj passive tso saib. Feem ntau ntawm Smartphone lub nrog LCD zaub thev naus laus zis siv cov matrix zaub nquag, tab sis qee cov khoom qub dhau los tseem siv cov passive zaub daim phiaj tsim. Feem ntau ntawm cov khoom siv hluav taws xob feem ntau nyob ntawm kua siv lead ua kua tshuab rau lawv cov zaub. Cov kua muaj qhov tshwj xeeb zoo ntawm muaj qhov qis zog siv hluav taws xob tsawg dua li ntawm LED lossis cathode txoj sab ci raj.

Cov kua siv lead ua kua zaub tau ua haujlwm rau lub hauv paus ntsiab lus ntawm kev thaiv teeb pom kev ntau dua li lub teeb ci. LCD qhov yuav tsum tau backlight raws li lawv tsis emits teeb los ntawm lawv. Peb ib txwm siv cov khoom siv uas tau tsim los ntawm LCD cov lus uas tau hloov pauv siv cathode txoj sab ci raj. Cathode txoj kab hluav taws xob kos muaj zog ntau dua piv rau LCD thiab kuj tseem hnyav dua thiab loj dua.

Yuav ua li cas LCDs yog Tsim?


LCD Cwj Chim Daim Duab

Cov lus qhia yooj yim uas yuav tsum txiav txim siab thaum ua LCD:

Tus qauv yooj yim ntawm LCD yuav tsum tswj hwm los ntawm kev hloov pauv tam sim no.
Peb yuav tsum siv lub teeb ci ntsa iab.
Cov kua siv lead ua kua yuav tsum muaj peev xwm tswj tau ob qho tib si ntawm kev ua haujlwm ua haujlwm xa tawm lossis tseem tuaj yeem hloov pauv lub teeb ci polarized.
Raws li tau hais los saum toj no uas peb yuav tsum tau siv ob daim iav iav daim iav lim hauv kev txiav txim siab ntawm cov kua siv lead ua kua. Cov iav uas tsis muaj qhov yeeb yaj kiab polarized nyob rau saum npoo ntawm nws yuav tsum tau txhuam nrog cov ntaub ntawv tshwj xeeb uas yuav tsim qhov ntsuas me me ntawm qhov chaw ntawm lub iav polarized lim. Cov grooves yuav tsum yog nyob rau tib qho kev coj ntawm zaj duab xis polarized. Tam sim no peb yuav tsum ntxiv ib txheej ntawm pneumatic kua theem kua siv lead ua rau ib qho ntawm cov txheej txheem polarized ntawm daim iav polarized. Lub microscopic channel ua rau txheej txheej thawj txheej qauv ua kom haum nrog lim kev teeb tsa. Thaum pom lub kaum sab xis pom ntawm thawj txheej thooj, peb yuav tsum ntxiv ntxiv thib ob ntawm iav nrog zaj duab xis polarized. Lub lim thawj yuav zoo ib txwm polarized raws li lub teeb ntaus nws thaum pib.

Yog li lub teeb mus los ntawm txhua txheej thiab coj cov txuas ntxiv nrog kev pab ntawm molecule. Cov molecule nyhav hloov nws lub dav hlau ntawm kev co ntawm lub teeb kom phim nws lub kaum. Thaum lub teeb kom txog rau qhov kawg ntawm cov kua siv lead ua kua, nws vibrates ntawm tib lub kaum ntse ntse ntawm cov txheej kawg ntawm cov qauv molecule vibrates. Lub teeb raug tso cai nkag mus rau hauv lub cuab yeej tsuas yog tias txheej txheej thib ob ntawm daim iav polarized ntais ntawv nrog txheej kawg ntawm cov qauv.

LCDs ua haujlwm li cas?

Lub hauv paus ntsiab lus tom qab ntawm LCD's yog tias thaum hluav taws xob tam sim no tau thov rau lub kua dej kua nyeem, lub molecule nyhav ua haujlwm tsis tau. Qhov no ua rau lub kaum sab xis ntawm lub teeb uas dhau los ntawm lub qauv ntawm cov iav polarized thiab tseem ua rau muaj kev hloov pauv rau lub kaum sab xis ntawm lub taub lim loj sab saum toj. Raws li qhov txiaj ntsig me me tau tso cai hla lub iav polarized los ntawm thaj chaw tshwj xeeb ntawm LCD. Yog li thaj chaw tshwj xeeb ntawd yuav tsaus ntuj piv rau lwm qhov. Lub LCD ua haujlwm ntawm lub hauv paus ntsiab lus ntawm thaiv teeb. Thaum tsim cov LCD's, ib tsom iav qhia raug teem rau tom qab. Lub dav hlau electrode tau ua los ntawm indium-tin oxide uas tau khaws cia rau sab saum toj thiab daim iav polarized nrog zaj duab xis polarizing tseem tau ntxiv rau hauv qab ntawm lub cuab yeej. Cov cheeb tsam ua tiav ntawm LCD tau muab ntim nrog ib qho ntawm electrode thiab saum toj no nws yuav tsum yog cov kua siv lead ua teeb meem.

Tom ntej no los rau ob daim iav nrog ib qho electrode hauv daim ntawv ntawm cov duab plaub ntawm qhov hauv qab thiab, nyob rau saum toj, lwm zaj duab xis polarizing. Nws yuav tsum raug txiav txim siab tias ob daim no khaws cia ntawm cov ces kaum txoj cai. Thaum tsis muaj qhov tam sim no, lub teeb dhau los hla ntawm hauv ntej ntawm lub LCD nws yuav muaj kev cuam tshuam los ntawm daim iav thiab rov qab los. Raws li cov electrode tau txuas nrog lub roj teeb uas tam sim no los ntawm nws yuav ua rau cov kua ua kua ntawm qhov sib xws ntawm cov dav hlau hluav taws xob thiab cov electrode zoo li lub duab plaub mus rau untwist. Yog li lub teeb tau sim los ntawm kev hla dhau. Ntawd cov duab plaub thaj tsis muaj dab tsi tshwm.

Qhov zoo ntawm lub LCD's:

LCD's siv hluav taws xob tsawg dua piv rau CRT thiab LED
LCD's muaj qee cov microwatts rau cov zaub hauv kev sib piv rau qee cov ntsuas roj zeb rau LED
LCDs yog tus nqi tsawg
Muab qhov zoo sib thooj
LCD's yog thinner thiab sib dua thaum piv rau cathode txoj sab ci raj thiab LED

Qhov tsis zoo ntawm ib qho LCD:

Xav tau cov khoom siv hluav taws xob ntxiv
Ntau qhov kub yog txwv rau kev ua haujlwm
Tsis tshua ntseeg siab
Tus nqi qis heev
LCD qhov xav tau AC tsav
Cov Kev Siv Cov Khoom Siv Ua Nres Crystal