Cov kua siv lead ua kua (LCD) yog dab tsi? Lub ntsiab lus ntawm LCD zaub thiab yuav ua li cas lawv txawv ntawm LED zaub
Luv luv rau LCD, kua siv lead ua kua yog ib qho khoom siv nyias nyias, uas hloov cov qub CRT saib. Lub vijtsam LCD muab cov duab zoo dua thiab kev txhawb nqa rau kev daws teeb meem loj.
Feem ntau, LCD qhia txog ib hom cov ntxaij vab tshaus uas siv LCD thev naus laus zis, tab sis kuj tseem muaj cov duab vaj huam sib luag xws li cov pom hauv lub khoos phis tawj laptop, lub tshuab xam zauv, cov koob yees duab digital, moos digital, thiab lwm yam khoom siv zoo sib xws.
Kuj tseem muaj FTP hais kom siv cov ntawv "LCD". Yog tias koj tab tom nrhiav, ces koj tuaj yeem ua tau Nyeem ntxiv txog nws ntawm Microsoft lub vev xaib , tab sis nws tsis muaj dab tsi ua nrog computers lossis TV cov ntxaij vab tshaus.
LCD cov ntxaij vab tshaus ua haujlwm li cas?
Raws li cov khoom siv lead ua qhia ua kua Cov ntxaij vab tshaus LCD siv cov kua siv lead ua kua los tig pixels rau thiab tawm kom pom cov xim tshwj xeeb. Cov kua nplaum zoo li cov khoom sib xyaw ntawm cov khoom thiab cov kua, uas tuaj yeem siv los hloov lawv lub xeev kom muaj qhov tshwm sim tshwj xeeb.
Cov kua siv lead ua kua no tuaj yeem xav tias yog lub qhov rais kaw. Thaum lub qhov rooj qhib, lub teeb tuaj yeem nkag mus rau hauv chav tsev yooj yim. Nrog rau cov ntxaij vab tshaus LCD, thaum cov muaju tau ua raws li txoj hauv kev tshwj xeeb, lawv tsis cia lub teeb hla.
Nws yog sab nraub qaum ntawm LCD uas yog lub luag haujlwm rau ci ntsa iab hla lub vijtsam. Nyob rau hauv pem hauv ntej ntawm lub teeb yog ib qho screen ua los ntawm pixels 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 txhawm rau txheeb xyuas cov xim tshwj xeeb lossis khaws cov pixel dub ntawd.
Qhov no txhais tau hais tias LCD saib ua haujlwm los ntawm kev thaiv lub teeb uas tawm ntawm sab nraum qab ntawm lub vijtsam tsis yog tsim lub teeb nws tus kheej zoo li CRT saib ua li cas. Qhov no tso cai rau LCD saib thiab TVs siv zog tsawg dua li CRT.
LCD vs LED: Dab tsi yog qhov txawv?
LED stands rau Lub teeb emitting diode . Txawm hais tias nws muaj lub npe txawv dua li Show siv lead ua kua , tsuas yog hais tias nws tsis yog ib yam dab tsi txawv kiag li, tab sis qhov tseeb nws yog xwb Hom Ntau yam ntawm LCD npo.
Qhov sib txawv tseem ceeb ntawm LCD thiab LED cov ntxaij vab tshaus yog li cas lub teeb rov qab muab. Lub backlight qhia yuav ua li cas tig lub vijtsam rau lossis tawm, uas yog qhov tseem ceeb rau kev muab cov duab zoo, tshwj xeeb tshaj yog nyob nruab nrab ntawm cov xim dub thiab xim ntawm lub vijtsam.
Lub vijtsam LCD tsis tu ncua siv lub teeb txias cathode fluorescent (CCFL) rau lub hom phiaj rov qab, thaum lub vijtsam LED siv ntau dua thiab cov duab me me (LED). Qhov txawv yog tias CCFL backlit LCD cov ntxaij vab tshaus tsis tuaj yeem thaiv txhua lub sijhawm tag nrho Dub, nyob rau hauv cov ntaub ntawv ib yam dab tsi zoo li ib tug dub-rau-dawb scene nyob rau hauv ultra-dub zaj duab xis tej zaum yuav tsis tshwm nyob rau hauv tag nrho, thaum LED-backlit LCDs tuaj yeem xaiv cov dub rau qhov sib sib zog nqus tob.
Yog tias koj muaj lub sijhawm nyuaj nkag siab qhov no, tsuas yog xav txog qhov ua yeeb yaj kiab tsaus nti ua piv txwv. Nyob rau hauv lub scene yog ib chav dub tiag tiag nrog lub qhov rooj kaw cia qee lub teeb nyob rau hauv lub hauv qab slit. Ib qho LED-backlit LCD npo tuaj yeem rub nws tawm zoo dua li backlit CCFL cov ntxaij vab tshaus vim hais tias yav dhau los tsuas tuaj yeem ua si xim rau ib puag ncig ntawm lub qhov rooj, tso cai rau tus so ntawm lub vijtsam kom nyob twj ywm dub tiag tiag.
Tsis yog txhua lub vijtsam LED muaj peev xwm dimming lub vijtsam hauv zos, raws li kuv nyuam qhuav nyeem. Nws feem ntau tsuas yog TVs puv nkaus xwb (piv rau cov ntug teeb) uas txhawb kev dimming hauv zos.
Cov ntaub ntawv ntxiv ntawm LCD
Nws yog ib qho tseem ceeb kom ceev faj thaum Ntxuav cov ntxaij vab tshaus LCD , yog nws TVs, smartphones, computer saib, thiab lwm yam.
Tsis zoo li CRT saib thiab TV, LCD saib tsis muaj refresh npaum li cas . Tej zaum koj yuav tau hloov Refresh tus nqi teeb tsa Saib xyuas ntawm CRT saib yog tias qhov muag pom yog qhov teeb meem, tab sis nws tsis tsim nyog rau cov tshiab LCD saib.
Feem ntau LCD computer saib muaj kev sib txuas ntawm cable HDMI و DVI. Ib txhia tseem txhawb Cables VGA , tab sis qhov no tsis tshua muaj. Yog tias daim npav video rau koj lub computer tsuas yog txhawb nqa VGA kev twb kev txuas qub, muab ob npaug rau xyuas koj lub LCD txuas nrog nws. Tej zaum koj yuav xav tau yuav VGA rau HDMI adapter lossis VGA rau DVI adapter kom ob qho tib si siv tau ntawm txhua lub cuab yeej.
Yog tias tsis muaj dab tsi tshwm sim ntawm koj lub computer screen, koj tuaj yeem ua cov kauj ruam hauv peb phau ntawv qhia kev daws teeb meem Yuav ua li cas kuaj lub computer screen uas tsis ua haujlwm kom paub vim li cas.
