Cov lus luv LCD, kua siv lead ua kua yog lub tiaj tus, nyias cov khoom siv uas tau hloov CRT cov zaub qub. LCD muab cov duab zoo dua thiab kev txhawb nqa rau kev daws teeb meem loj.
Feem ntau, LCD yog hais txog ib hom kev saib xyuas siv lub LCD thev naus laus zis, tab sis kuj tseem muaj lub vijtsam tiaj tus zoo li cov hauv laptops, lub tshuab xam zauv, lub koob yees duab digital, digital watches, thiab lwm yam khoom siv zoo sib xws.
Nws tseem muaj FTP hais kom siv cov ntawv 'LCD.' Yog tias qhov ntawd yog qhov koj tom qab, koj tuaj yeem nyeem ntxiv txog nws ntawm Microsoft lub vev xaib, tab sis nws tsis muaj dab tsi ua rau cov khoos phis tawj lossis TV.
LCD npo ua haujlwm li cas?
Raws li cov kua siv lead ua kua yuav qhia, cov ntxaij vab tshaus LCD siv cov kua siv lead ua kua los hloov pixels rau thiab tawm kom pom cov xim tshwj xeeb. Cov kua ua kua zoo li qhov sib xyaw ntawm cov khoom thiab cov kua, qhov twg cov hluav taws xob tam sim no tuaj yeem siv los hloov lawv lub xeev kom muaj cov tshuaj tiv thaiv tshwj xeeb tshwm sim.
Cov kua siv lead ua kua no tuaj yeem xav zoo li lub qhov rais kaw. Thaum lub qhov rooj qhib, lub teeb tuaj yeem nkag mus rau hauv chav tsev yooj yim. Nrog cov ntxaij vab tshaus LCD, thaum cov muaju tau ua raws li txoj hauv kev tshwj xeeb, lawv tsis tso cai rau lub teeb dhau mus lawm.
Nws yog sab nraub qaum ntawm lub vijtsam LCD uas yog lub luag haujlwm rau kev ci ntsa iab ntawm qhov screen. Nyob rau hauv pem hauv ntej ntawm lub teeb yog ib qho screen ua los ntawm pixels uas muaj xim liab, xiav, los yog ntsuab. Cov kua siv lead ua kua yog lub luag haujlwm rau hluav taws xob tig lub lim rau lossis tawm txhawm rau nthuav tawm qee cov xim rau lossis khaws cov pixel dub.
Qhov no txhais tau hais tias cov ntxaij vab tshaus LCD ua haujlwm los ntawm thaiv lub teeb tawm ntawm sab nraum qab ntawm lub vijtsam es tsis txhob tsim lub teeb rau lawv tus kheej li cas CRT cov ntxaij vab tshaus ua haujlwm. Qhov no tso cai rau cov saib LCD thiab TVs siv zog tsawg dua li CRT.
LCD vs LED: Qhov txawv yog dab tsi?
LED stands rau lub teeb-emitting diode. Txawm hais tias nws muaj lub npe txawv dua li cov kua siv lead ua kua displa y, nws tsis yog ib yam txawv kiag li, tab sis tiag tiag tsuas yog ib qho txawv ntawm LCD npo.
Qhov sib txawv loj ntawm LCD thiab LED cov ntxaij vab tshaus yog qhov lawv muab cov teeb pom kev zoo li cas. Backlighting yog hais txog yuav ua li cas lub vijtsam tig lub teeb rau lossis tawm, ib yam dab tsi tseem ceeb rau kev muab cov duab zoo, tshwj xeeb ntawm cov xim dub thiab xim ntawm lub vijtsam.
Ib lub vijtsam LCD tsis tu ncua siv lub teeb txias cathode fluorescent teeb (CCFL) rau lub hom phiaj teeb pom kev zoo, thaum cov ntxaij vab tshaus LED siv ntau dua thiab me dua lub teeb-emitting diodes (LEDs). Qhov sib txawv ntawm ob yog tias CCFL-backlit LCDs tsis tuaj yeem ib txwm thaiv tawm tag nrho cov xim dub, nyob rau hauv cov ntaub ntawv ib yam dab tsi zoo li ib tug dub ntawm dawb scene nyob rau hauv ib tug yeeb yam yuav tsis tshwm li ntawd dub tom qab tag nrho, thaum LED-backlit LCDs yuav localize. lub blackness rau qhov sib sib zog nqus sib sib zog nqus.
Yog tias koj nyuaj rau nkag siab qhov no, tsuas yog xav txog qhov ua yeeb yaj kiab tsaus nti ua piv txwv. Hauv qhov xwm txheej yog qhov tsaus ntuj, chav dub nrog lub qhov rooj kaw uas tso cai rau qee lub teeb los ntawm qhov tawg hauv qab. Ib qho screen LCD nrog LED backlighting tuaj yeem rub nws tawm zoo dua li CCFL backlighting cov ntxaij vab tshaus vim tias yav dhau los tuaj yeem tig xim rau tsuas yog ib feem ntawm lub qhov rooj, tso cai rau tag nrho cov seem ntawm lub vijtsam kom nyob twj ywm dub tiag tiag.
Tsis yog txhua qhov LED zaub muaj peev xwm dimming lub vijtsam hauv zos zoo li koj nyuam qhuav nyeem. Nws feem ntau yog cov TV puv puv (piv rau cov ntug teeb ci) uas txhawb kev dimming hauv zos.
Cov ntaub ntawv ntxiv ntawm LCD
Nws yog ib qho tseem ceeb uas yuav tsum tau saib xyuas tshwj xeeb thaum ntxuav cov ntxaij vab tshaus LCD, txawm tias lawv yog TVs, smartphones, computer saib, thiab lwm yam.
Tsis zoo li CRT saib thiab TVs, LCD cov ntxaij vab tshaus tsis muaj tus nqi refresh. Tej zaum koj yuav xav tau hloov qhov ntsuas qhov ntsuas qhov ntsuas tshiab ntawm koj lub vijtsam CRT yog tias qhov muag pom muaj teeb meem, tab sis nws tsis xav tau ntawm cov ntxaij vab tshaus LCD tshiab.
Feem ntau lub khoos phis tawj LCD saib muaj kev sib txuas rau HDMI thiab DVI cables. Qee qhov tseem txhawb VGA cables tab sis qhov ntawd tsis tshua muaj ntau. Yog tias koj lub khoos phis tawj daim npav video tsuas yog txhawb nqa VGA qub, nco ntsoov xyuas ob zaug tias LCD saib muaj kev sib txuas rau nws. Tej zaum koj yuav xav tau yuav VGA rau HDMI lossis VGA rau DVI adapter kom ob leeg siv tau ntawm txhua lub cuab yeej.
Yog tias tsis muaj dab tsi tshwm sim hauv koj lub khoos phis tawj saib, koj tuaj yeem ua haujlwm los ntawm cov kauj ruam hauv peb Yuav Ua Li Cas Ntsuas Lub Khoos phis tawj Saib Xyuas Tsis Ua Haujlwm Kev daws teeb meem qhia kom paub tias yog vim li cas.
FAQ
LCD hlawv-hauv yog dab tsi?
CRT kho vajtse, LCD tus thawj coj, tau muaj npe nrov rau kev tshuaj ntsuam hlawv-hauv, cov duab fainted rau ntawm cov khoom siv hluav taws xob uas tsis tuaj yeem tshem tawm.
LCD txias yog dab tsi?
LCD txias daws teeb meem me uas tshwm sim ntawm LCD saib, suav nrog cov duab tsis tu ncua lossis duab dab. Cov txheej txheem cuam tshuam nrog dej nyab lub vijtsam lossis saib nrog ntau xim (lossis nrog tag nrho cov dawb). Dell suav nrog cov duab txias hauv nws cov LCD saib.
Qhov teeb meem yuav ua li cas yog tias koj pom me me dawb, dub, lossis xim xim ntawm koj lub vijtsam LCD?
Yog tias koj pom qhov chaw dub uas tsis hloov pauv, nws yuav zoo li lub pixel tuag thiab tej zaum yuav xav tau kev kho kho lossis hloov lub vijtsam. Stuck pixels feem ntau yog xim liab, ntsuab, xiav, lossis daj (txawm tias lawv tuaj yeem yog xim dub hauv qhov tsis tshua muaj). Qhov kev ntsuam xyuas tuag-pixel qhia qhov txawv ntawm qhov teeb meem thiab tuag pixels.
